CN107313628A - A kind of basic digging-free assembled tower-type space garage and its construction method - Google Patents

Abstract

The invention discloses a foundation-excavation-free assembled tower-type three-dimensional garage and its construction method. The garage includes a basic structure and an upper steel structure. The steel structure includes a column, a plane frame, a guide rail and an auxiliary structure. Nodes are provided, and the columns are connected to the planar frame by bolts through the nodes, and the planar frame is connected to the guide rail and the auxiliary structure by bolts; the basic structure includes steel beams and foundations, and the steel beams Including primary and secondary steel beams, the primary and secondary steel beams are installed in the radial direction along the direction of the column, the steel beams are prefabricated structures, rubber layers are arranged between the steel beams and the foundation from top to bottom, The sand and gravel layer, the upper surface of the steel beam is laid with a prefabricated reinforced concrete slab. The basic structure of the three-dimensional garage applied in the present invention does not require earth excavation construction, and is convenient to disassemble and assemble, and has high installation precision.

Description

A foundation excavation-free assembled tower-type three-dimensional garage and its construction method

technical field

The invention relates to a parking garage, in particular to a foundation-excavation-free assembled tower-type stereo garage and a construction method thereof.

Background technique

With the rapid increase of my country's car ownership, difficult parking, disorderly parking and difficult governance have become the main problems plaguing the development of Chinese cities. Especially under the background of the new normal economy, the traditional parking industry model has been difficult to meet the needs of the new environment. Industrial development needs.

As a modern parking lot that can fully meet people's practical needs, the intelligent parking garage can solve the problems of parking difficulty, difficulty in finding a car, slow traffic speed, and single payment method that people encounter in the parking process, and can manage the parking lot well. Order, effectively promote the improvement of the utilization rate of limited parking spaces in the parking lot, and alleviate the parking problem. Therefore, the demand for smart parking garages is constantly rising.

At present, the existing building foundation types mainly include the following types: (1) Independent foundation, pouring reinforced concrete in the independent foundation excavated separately, for uneven soil construction, the construction is not complicated; however, when the upper load is large , It is wasteful to use an independent foundation, and when the soil quality is not uniform, the settlement of the independent foundation varies greatly. (2) The strip foundation has a large bending rigidity, which converts the concentrated load on the upper part into a uniform load, so that the foundation is more evenly stressed; however, the construction of the strip foundation is more complicated and wasteful. long. (3) The raft foundation can reduce the pressure per unit area of the foundation soil, increase the bearing capacity of the foundation, and enhance the overall rigidity of the foundation; however, the raft foundation has a large volume, and the amount of concrete poured during construction is large, and the construction is complicated and economical. poor. (4) The pile foundation has a high bearing capacity and has a high guarantee for the anti-overturning and lateral movement of the building; however, the cost is relatively high.

It can be seen that the traditional foundation forms inevitably require earth excavation construction. However, in some large and medium-sized cities with dense buildings and complex underground pipelines, excavating foundation pits will inevitably pose a threat to the safety of surrounding buildings, pipelines and other underground facilities. Especially when the excavation boundary of the foundation pit is very close to the existing buildings, the soil movement caused by the excavation and unloading of the foundation pit will impose additional shear force and bending moment on the adjacent buildings and their foundations, and more seriously , so that the foundation soil that has already settled and stabilized will settle again, especially the old brick-concrete buildings are very sensitive to uneven settlement.

Therefore, it is of great significance to design a foundation excavation-free assembled tower-type three-dimensional garage and its construction method.

Contents of the invention

The technical problem to be solved by the present invention is to provide a foundation-excavation-free assembled tower-type three-dimensional garage and its construction method that do not require excavation for construction, are convenient to disassemble and assemble, and have high installation accuracy.

The present invention solves the above-mentioned technical problems through the following technical solutions: a basic excavation-free assembled tower-type three-dimensional garage, including a basic structure and an upper steel structure, and the steel structure includes a column, a plane frame, a guide rail and an auxiliary structure. Nodes are sleeved on the uprights, and the uprights are connected to the plane frame by bolts through the nodes, and the plane frame is connected to the guide rail and the auxiliary structure by bolts;

The basic structure includes steel beams and foundations. The steel beams include primary and secondary steel beams. The primary and secondary steel beams are installed radially along the column direction. The steel beams are prefabricated structures, and the steel beams are A rubber layer and a sandstone layer are sequentially arranged between the foundation and the foundation. The upper surface of the steel beam is laid with a prefabricated reinforced concrete slab.

As an optimized technical solution, the planar frame is divided into an inner ring main beam frame, an outer ring main beam frame and a supporting turntable frame, the guide rail includes a first guide rail and a second guide rail, and the auxiliary structure includes an inner ring support longitudinal beam and outer ring support stringers;

Around the periphery of the support turntable frame, a plurality of first guide rails are arranged radially, one end of the first guide rail is connected to the support turntable frame, and the other end of the first guide rail is connected to the inner ring main beam frame, the The supporting turntable frame and the main beam frame of the inner ring are concentric circles, and the first guide rail is located between two pairs of the supporting longitudinal beams of the inner ring between the supporting turntable frame and the main beam frame of the inner ring;

Around the periphery of the main beam frame of the inner ring, a plurality of second guide rails are arranged radially, one end of the second guide rail is connected to the main beam frame of the inner ring, and the other end of the second guide rail is connected to the main beam frame of the outer ring connected, the main beam frame of the outer ring and the main beam frame of the inner ring are concentric circles, and the second guide rails are located between the main beam frame of the outer ring and the main beam frame of the inner ring. The outer ring is supported between the stringers.

As an optimized technical solution, both the main beam frame of the inner ring and the main beam frame of the outer ring include several sections of main beams, and the two ends of each section of the main beam are respectively installed on the nodes of two adjacent columns.

As an optimized technical solution, the auxiliary structure further includes a vehicle support auxiliary beam, one end of the vehicle support auxiliary beam is connected to the second guide rail, and the other end of the vehicle support auxiliary beam is connected to the outer ring support longitudinal beam connect.

As an optimized technical solution, steel plates are laid on each layer of the steel structure of the three-dimensional garage, and the steel plates are laid on the upper surfaces of the plane frame, the guide rail and the auxiliary structure, and the steel plates and the plane frame 1. The guide rail is fixedly connected with the auxiliary structure, and the rotatable disc is installed on the steel plate of each layer.

As an optimized technical solution, the reinforced concrete slab and the steel beam are connected by bolts.

As an optimized technical solution, the upper flange of the steel beam and the reinforced concrete plate are provided with bolt holes.

As an optimized technical solution, the main steel girders are connected by bolted end plates.

As an optimized technical solution, the main steel beam and the secondary steel beam are connected by high-strength bolts.

As an optimized technical solution, the section size of the main steel beam is HM400×300×10×16, and the section size of the secondary steel beam is HM300×200×8×12.

As an optimized technical solution, the steel used in the steel structure of the three-dimensional garage is H-shaped steel.

As an optimized technical solution, reinforcing ribs are provided in the H-shaped steel, the reinforcing ribs are located on the inside of the H-shaped steel, and one end of the reinforcing rib is connected to the top of the H-shaped steel, and the reinforcing ribs The other end is connected with the bottom end of the H-shaped steel.

A construction method for a foundation-excavation-free assembled tower-type three-dimensional garage, comprising the following steps:

construction of infrastructure;

Fix the columns and nodes;

Fix the plane frame and the column;

Fix the guide rail with the plane frame;

installation of auxiliary structures;

laying steel plate

As an optimized technical solution, the construction of the basic structure specifically includes:

The site soil is rammed and leveled, and a layer of sand and gravel is laid on the foundation;

Lay a rubber layer on the gravel layer;

Install prefabricated steel beams on the foundation.

Install radial girders;

Assemble the ring girder sequentially from inside to outside;

Install secondary beams;

Precast concrete floor slabs are laid on the steel beams and connected by bolts.

As an optimized technical solution, the plane frame and the column are fixed, including:

Fix the main beam frame of the inner ring with the column located in the inner ring;

Fix the main beam frame of the outer ring with the column located in the outer ring;

Lift and support the turntable frame and fix it.

As an optimized technical solution, the guide rail and the plane frame are fixed, including:

Fix the first guide rail to the support turntable frame and the main beam frame of the inner ring respectively;

Fix the second guide rail to the main beam frame of the inner ring and the main beam frame of the outer ring respectively.

As an optimized technical solution, the steps of installing auxiliary structures also include:

Fix the inner ring support longitudinal beam to the inner ring main beam frame;

Fix the outer ring support longitudinal beam and the outer ring main beam frame;

Fix the auxiliary beam of the vehicle with the second guide rail and the outer ring support longitudinal beam respectively;

Repeat the above process for expansion installation to form a complete plane frame.

Compared with the prior art, the present invention has the following advantages:

1. Excavation-free, strong terrain adaptability: the steel structure foundation is decomposed into several steel beam components, and after the processing and manufacturing are completed, they are transported to the project site by truck, and then hoisted and spliced on site by a large crane to form a steel structure foundation, and then Lay fixed prefabricated reinforced concrete slabs on steel beams to avoid excavation construction and protect the safety of surrounding buildings, pipelines and other underground facilities. The three-dimensional garage is decomposed into an assembled steel structure, which is convenient to form various forms of three-dimensional garages according to the characteristics of the terrain.

2. Avoid steel foundation settlement: Laying a certain thickness of sand and gravel cushion on the ground can improve the bearing capacity of the ground and avoid uneven settlement of the steel foundation; lay a rubber layer on the sand cushion first to avoid corrosion of steel beams, etc. Durability issues.

3. Convenient disassembly and assembly: all components of the basic structure can be divided into several units for prefabrication in the factory, and then assembled on site with all bolts, which is convenient for disassembly and assembly, and the construction period is short.

4. High installation accuracy: The support module and the column are connected by high-strength bolts to form a stable steel structure. Except for the bottom layer, the structural forms of the other layers of the steel structure are exactly the same, and the processing and welding of the support module are done in the factory. Complete, thereby ensuring the high-precision installation of the three-dimensional garage.

Description of drawings

Fig. 1 is a schematic diagram of a plane frame module in an embodiment of the present invention;

Fig. 2 is the structural diagram that column of the present invention is connected with plane frame module;

Fig. 3 is the structural diagram that the foundation structure of the embodiment of the present invention is connected with the column;

Fig. 4 is a front view of the outer ring column node in the embodiment of the present invention;

Fig. 5 is a structural diagram of a column and a bolt connection in an embodiment of the present invention;

Fig. 6 is an enlarged schematic diagram of the connection between the column foot and the steel beam in the embodiment of the present invention;

Fig. 7 is an enlarged schematic view of the connection between the precast concrete slab and the steel beam in the embodiment of the present invention.

Among them, 1. Upright column; 2. Plane frame; 21. Inner ring main beam frame; 22. Outer ring main beam frame; 3. Guide rail; 31. First guide rail; 32. Second guide rail; 4. Auxiliary structure; 41. Inner ring support longitudinal beam; 42. Outer ring support longitudinal beam; 43. Vehicle support auxiliary beam; 5. Bolt; 6. Node; 61. Inner ring column node; 62. Inner ring elevator node; 63. Outer ring column node; 64. Outer ring elevator node; 7. Reinforcing rib; 8. Extended reinforcing rib; 9. The first circular frame; 10. The second circular frame; 11. Roller installation components; 111. Support frame; 112. The first One roller mounting frame; 113, the second roller mounting frame; 114, the third roller mounting frame; 11, column foot; 12, reinforced concrete plate; 13, steel beam; 14, bolt end plate; 15, bolt hole; 16, Rubber layer; 17, gravel layer; 18, foundation.

detailed description

The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

Referring to Fig. 1, Fig. 2 and Fig. 3 at the same time, the excavation-free assembled tower-type three-dimensional garage in this embodiment includes a basic structure and an upper steel structure, and the steel structure includes a column 1, a plane frame 2, and a guide rail. 3 and the auxiliary structure 4, the column 1 is covered with a node 6, the column 1 is connected to the plane frame 2 through the node 6 on the column 1 using bolts 5, and the plane frame 2 is connected to the guide rail 3 and the auxiliary structure 4 respectively using bolts 5; The basic structure includes a steel beam 13 and a foundation 18. The steel beam 13 includes primary and secondary steel beams. The primary and secondary steel beams are installed radially along the direction of the column 1. The steel beam 13 is a prefabricated structure A rubber layer 16 and a gravel layer 17 are sequentially arranged between the steel beam 13 and the foundation 18 from top to bottom. The upper surface of the steel beam 13 is laid with a prefabricated reinforced concrete slab 12. It is connected with the reinforced concrete slab 12 and the upper flange of the main steel beam through bolts 5 .

Specifically, the planar frame 2 is divided into an inner ring main beam frame 21, an outer ring main beam frame 22 and a support turntable frame, the guide rail 3 includes a first guide rail 31 and a second guide rail 32, and the auxiliary structure 4 includes an inner ring support longitudinal beam 41 and The outer ring supports the stringers 42 . Wherein, around the periphery of the support turntable frame, a plurality of first guide rails 31 are arranged radially, one end of the first guide rail 31 is connected with the support turntable frame, the other end of the first guide rail 31 is connected with the main beam frame 21 of the inner ring, and the support turntable frame and The main beam frame 21 of the inner ring is in the shape of concentric circles, and the first guide rail 31 is located between the supporting longitudinal beams 41 of the inner ring supporting the turntable frame and the main beam frame 21 of the inner ring; surrounding the outer periphery of the main beam frame 21 of the inner ring, A plurality of second guide rails 32 are arranged radially, one end of the second guide rails 32 is connected with the main beam frame 21 of the inner ring, the other end of the second guide rails 32 is connected with the main beam frame 22 of the outer ring, and the main beam frame 22 of the outer ring is connected with the main beam frame 22 of the inner ring. The crossbeam frames 21 are in the shape of concentric circles, and the second guide rails 32 are located between two outer ring support longitudinal beams 42 between the outer ring main beam frames 22 and the inner ring main beam frames 21 .

Both the main beam frame 21 of the inner ring and the main beam frame 22 of the outer ring include several sections of main beams, and the two ends of each section of the main beam are respectively installed on the joints of two adjacent columns 1 .

The accessory structure 4 also includes a vehicle support auxiliary beam 43 , one end of the vehicle support auxiliary beam 43 is connected to the second guide rail 32 , and the other end of the vehicle support auxiliary beam 43 is connected to the outer ring support longitudinal beam 42 .

Each layer of the steel structure of the three-dimensional garage is laid with steel plates, and the steel plates are laid on the upper surface of the plane frame 2, guide rail 3 and subsidiary structure 4, and the steel plates are fixedly connected with the plane frame 2, guide rail 3 and subsidiary structure 4, and the rotatable disc is installed on the on each layer of steel.

The reinforced concrete slab 12 and the steel beam 13 are connected by bolts 5; the upper flange of the steel beam 13 and the reinforced concrete slab 13 are provided with bolt holes 15; the main steel beams are connected by bolt end plates 14; the main steel beam and the secondary The steel beams are all connected by high-strength bolts 5; the cross-sectional size of the main steel beam is HM400×300×10×16, and the cross-sectional size of the secondary steel beam is HM300×200×8×12.

The steel used in the steel structure of the three-dimensional garage is H-shaped steel; the H-shaped steel is equipped with reinforcing ribs 7, and the reinforcing ribs 7 are located on the inner side of the H-shaped steel, and one end of the reinforcing rib 7 is connected to the top of the H-shaped steel, and the other end of the reinforcing rib 7 Connect with the bottom end of the H-beam.

A construction method for a foundation-excavation-free assembled tower-type three-dimensional garage, comprising the following steps:

The construction of the basic structure; fix the column 1 and the node; fix the plane frame 2 and the column 1; fix the guide rail 3 and the plane frame 2; install the auxiliary structure 4; lay steel plates.

The construction of the basic structure specifically includes: compacting and leveling the site soil, laying a layer of sandstone layer 17 on the foundation; laying a layer of rubber layer 16 on the sandstone layer 17; installing prefabricated steel beams 13 on the foundation 18. Install the radial main beam; assemble the circumferential main beam successively from the inside to the outside; install the secondary beam; lay the precast concrete floor slab 12 on the steel beam 13 and fix it with bolts 5 .

The plane frame 2 is fixed to the column 1, which specifically includes: fixing the main beam frame 21 of the inner ring to the column 1 located in the inner ring; fixing the main beam frame 22 of the outer ring to the column 1 located in the outer ring; hoisting and supporting the turntable frame and fixed.

Fixing the guide rail 3 and the planar frame 2 specifically includes: fixing the first guide rail 31 to the support turntable frame and the main beam frame 21 of the inner ring respectively; The main beam frame 22 is fixed.

The steps of installing the auxiliary structure specifically include: fixing the inner ring support longitudinal beam 41 to the inner ring main beam frame 21; fixing the outer ring support longitudinal beam 42 to the outer ring main beam frame 22; The second guide rail 32 and the outer ring support longitudinal beam 42 are fixed; the above process is repeated for expansion and installation to form a complete plane frame 2 .

As shown in Figure 4, the nodes 6 on the column 1 include inner circle nodes and outer circle nodes, the outer circle nodes are sleeved and welded to the column 1 of the main beam frame 22 of the outer circle, and the inner circle nodes are sleeved and welded to the inner circle On the column 1 of the main beam frame 21. The inner ring sub-nodes include the inner ring column node 61 and the inner ring elevator node 62, the outer ring sub-nodes include the outer ring column node 63 and the outer ring elevator node 64, the inner ring column node 61 is used to connect the inner ring main beam frame 21 and the inner ring support The longitudinal beam 41, the outer ring column node 63 is used to connect the outer ring main beam frame 22 and the outer ring supporting longitudinal beam 42, the inner ring elevator node 62 is used to connect the inner ring main beam frame 21, the inner ring supporting longitudinal beam 41 and the elevator, The outer ring elevator node 64 is used to connect the outer ring main beam frame 22, the outer ring support stringer 42 and the elevator.

According to the different structural forms of the nodes 6 in different parts of the steel structure three-dimensional garage, firstly, cut out the space of the cross section of the column 1 on a whole board, then put the whole board on the column 1 and weld it to fix it; after that, another whole board The plate is welded to the column 1 in the same way as above, and on this basis, the joints 6 in all directions are fabricated through tailor welding. In this embodiment, the three-dimensional garage steel structure is used as an example to connect the outer ring column node 63 of the outer ring main beam frame 22 and the outer ring support longitudinal beam 42. The column 1 needs to be connected with the plane frame 2 in three directions: Firstly, a whole board is cut out of the space of the column 1 cross-section; then, the whole board is put on the column 1 and welded and fixed; after that, the boards protruding from the node 6 in different directions correspond to the corresponding main beam frame of the outer ring 22 and the outer ring support longitudinal beam 42 are fixedly connected. It should be noted that the height of the node 6 should be consistent with the height of the crossbar at this place. For the connection node 6 between the main beam frame 21 of the inner ring and the column 1, since the cantilever extends out of the turntable structure from this place, this place is inward The protruding part of the ring main crossbeam frame 21 needs to be designed with cross-section reinforcement, and adopts the structural form of variable cross-section reinforcement. Using this method for adjacent rods, the installation angle and flatness of the node 6 can be guaranteed through the formwork in the factory. This structural form uniformly manufactures the rods in all directions of the entire node 6 to avoid mutual position deviation At the same time, because the overall welding rigidity is better and the force is uniform, the flatness and manufacturing accuracy of the node 6 can be better guaranteed, which effectively improves the installation accuracy of the steel structure of the three-dimensional garage. In addition, the adoption of this structural form avoids the need to weld each joint 6 separately, reduces the difficulty of operation, saves the adjustment time after welding, effectively improves the construction speed of the steel structure of the garage, and improves the installation efficiency of the garage. The column 1 is welded and fixedly connected with the node 6, and the column 1 is made according to the transportation demand: when the column 1 is short, the column 1 and the node 6 are prefabricated in the factory, and then transported to the site for assembly with other plane frames; and when the column 1 is long At this time, the column 1 can be prefabricated in sections and the nodes 6 in the factory, and after being transported to the site, the column 1 can be spliced first, and then the entire column 1 can be assembled with other plane frames.

In the three-dimensional garage of the present invention, the steel structure 1 of the tower-type three-dimensional garage adopts H-shaped steel, and reinforcing ribs 7 are arranged in the H-shaped steel. The reinforcing rib 7 is located inside the H-shaped steel, and one end of the reinforcing rib 7 is connected to the top of the H-shaped steel, and the other end of the reinforcing rib 7 is connected to the bottom of the H-shaped steel. Concretely, the cross sections of the first roller mounting frame 112, the second roller mounting frame 113 and the third roller mounting frame 114 are provided with transverse reinforcing ribs 7; the inside of the first circular frame 9 is provided with reinforcing ribs 7, and The distance between adjacent reinforcing ribs 7 is small, thereby ensuring that the quantity of reinforcing ribs 7 is large, making the supporting turntable frame more firm and safe during operation; in the guide rails, the inner and outer sides of the first guide rail 31 and the second guide rail The inner and outer sides of 32 are all provided with reinforcing ribs 7. Wherein, preferably, the reinforcing rib 7 that is provided on the outside of the first guide rail 31 and the second guide rail 32 is a protruding reinforcing rib 8, and the protruding reinforcing rib 8 includes two side plates and a bottom plate, and the two side plates are respectively connected with The bottom plates are perpendicular to each other, and the sides of the extended ribs 8 are right-angled trapezoids. According to actual needs, the sides of the extended ribs 8 can also be inverted right-angled trapezoids, and the tops of the side plates of the extended ribs 8 are aligned with the H-shaped steel. The top is connected, and the bottom plate of the protruding rib 8 is connected with the bottom of the H-shaped steel, so that the track rigidity is enhanced with the most economical material, and the support width of the track is also increased. The reinforcement ribs 7 inside the first guide rail 31 and the second guide rail 32 correspond one-to-one to the protruding reinforcement ribs 8 on the outside, and are arranged at equal intervals. According to actual needs, the reinforcing ribs 7 on the inside and outside of the first guide rail 31 and the second guide rail 32 can be arranged in a staggered manner.

In order to avoid the risk of vehicles parked in the conventional vertical lift garage rushing into the lower garage due to loss of protection, in this embodiment, steel plates are laid on each layer of the steel structure 1 of the tower-type three-dimensional garage, and the steel plates are laid on the plane frame 2, The upper surface of the guide rail 3 and the auxiliary structure 4, and the steel plate is fixedly connected with the plane frame 2, the guide rail 3 and the auxiliary structure 4, and the rotatable disc is installed on the steel plate of each layer. Although the product standard system of the three-dimensional parking garage has been relatively complete, most of the three-dimensional garages on the market adopt non-closed and independent structural design, so that when the user uses the three-dimensional garage, there are sundries that will rush into the lower layer and the upper layer due to loss of protection. Waiting for the danger of falling into the lower parking space. In addition to laying steel plates on each floor of the three-dimensional garage, the perimeter of the three-dimensional garage can also be vertically provided with hoardings. According to actual needs, the hoardings can be steel plates, aluminum plates, glass plates or plastic plates. In addition, in order to prevent vehicles from rushing out of the garage and slipping, protective nets can be set on the outside of the three-dimensional garage road and on both sides of the entry and exit pavement. The flexibility and interception strength of the protective net are sufficient to absorb and disperse the expected impact kinetic energy of the vehicle. The design and adoption of the energy dissipation ring further improves the impact resistance of the system. Compared with the steel interception and masonry retaining wall, it changes the original With construction technology, the construction period and funds are reduced.

The installation method of the three-dimensional garage is based on the principle that the steel structure foundation of the three-dimensional garage can be decomposed into several standardized H-shaped steel beam components, which are processed and manufactured by the steel structure enterprise according to the drawings, and transported to the project site by truck, and then transported to the project site by a large crane. On-site hoisting and splicing of the main and secondary steel beams are carried out, and the steel structure foundation is assembled according to the inner ring first, then the outer ring, and the inner diameter first, then the outer diameter. The slabs 12 are secured to steel beams 13 to form the foundations and roads required by the design.

Specifically, it is divided into the following two installation parts: 1. Factory prefabrication: First, make the column 1 according to the transportation requirements. If the column 1 is too long, segment the column 1 and splice it on site; then, cut the column on a whole board 1 cross-section space, and then put the whole plate on the column 1 and weld it to fix it; after that, another whole plate is welded on the column 1 by the same method as above, and on this basis, through tailor welding, the Node 6 is completed; because the structure of the main beam frame 21 of the inner ring is similar to that of the main beam frame 22 of the outer ring, the main beam frame 21 of the inner ring and the main beam frame 22 of the outer ring are pre-assembled in the factory; the first guide rail 31 and the second The guide rail 32 is prefabricated in the factory as a whole guide rail; then, the support turntable frame and auxiliary beams are fabricated. 2. On-site installation: First, if the column 1 is too long, splice the segmented columns 1 on site; then, install each column 1 through tooling positioning; after that, hoist the main beam frame 21 of the inner ring and the main beam frame 22 of the outer ring , and properly adjust the position and angle of the column 1, respectively connect the main beam frame 21 of the inner ring and the main beam frame 22 of the outer ring with the node 6 on the column 1 and install them as a whole; then, hoist the frame of the supporting turntable and fix it; install the guide rail and fix it , connect the first guide rail 31 and the main beam frame 21 of the inner ring into a whole, and connect the second guide rail 32 and the main beam frame 22 of the outer ring into a whole; after that, install the auxiliary beam, and connect the inner ring support longitudinal beam 41 with the inner ring The main beam frame 21 is connected, and the outer ring support longitudinal beam 42 is connected with the outer ring main beam frame 22; the above process is repeated for expansion and installation to form a complete plane frame 2 structure; finally, the planks are installed in blocks to form a single-layer complete steel structure.

As shown in FIG. 5 , the figure shows the structural diagram of the connection between the node 6 on the column 1 and the adjacent components through bolts 5 . In the foundation-excavation-free assembled tower-type three-dimensional garage described in the present invention, bolt holes are provided on the nodes 6, and the columns 1 are connected to the plane frame 2 through the nodes 6 using bolts 5, and the components of the plane frame 2 are connected through the nodes 6 Use bolt 5 to connect. specific:

(1) The connection method between the support turntable frame and the main beam frame 21 of the inner ring: one end of the first guide rail 31 is connected with the first circular frame 9 through the bolt 5, and the other end of the first guide rail 31 is connected with the main beam of the inner ring through the bolt 5 The frame 21 is connected; one end of the inner ring support longitudinal beam 41 is connected with the inner ring main beam frame 21 through the node 6 using the bolt 5 , and the other end of the inner ring support longitudinal beam 41 is connected with the first circular frame 9 through the bolt 5 .

(2) The connection method between the main beam frame 21 of the inner ring and the main beam frame 22 of the outer ring: one end of the second guide rail 32 is connected to the main beam frame 21 of the inner ring through the bolt 5, and the other end of the second guide rail 32 is connected to the outer ring main beam frame 21 through the bolt 5. The ring main beam frame 22 is connected; one end of the outer ring supporting longitudinal beam 42 is connected with the outer ring main beam frame 22 by bolts 5 through the node 6 located on the column 1 of the outer ring main beam frame 22, and the other end of the outer ring supporting longitudinal beam 71 The nodes 6 located on the column 1 of the main beam frame 21 of the inner ring are connected with the main beam frame 21 of the inner ring by bolts 5 .

(3) The connection mode between the main beam frame 22 of the outer ring and the vehicle supporting auxiliary beam 43: one end of the vehicle supporting auxiliary beam 43 is connected to the second guide rail 32 through the bolt 5, and the other end of the vehicle supporting auxiliary beam 43 is connected to the outer ring through the bolt 5. Support stringers 42 are connected.

(4) The connection mode of the main beam frame and the column 1: each section of the main beam of the inner ring main beam frame 21 is connected with the column 1 through the node 6 on the column 1 of the inner ring main beam frame 21 using bolts 5; Each section of the main beam of the main beam frame 22 is connected to the column 1 through the nodes 6 on the column 1 of the main beam frame 22 of the outer ring using bolts 5 .

(5) The steel plates laid on each layer of the steel structure 1 of the tower-type three-dimensional garage are fixed on the upper surface of the plane frame 2, guide rail 3 and auxiliary structure 4 by bolts 5, and can also be connected by rivets according to actual needs.

The bolt 5 used as connection is a high-strength bolt 5, and the high-strength bolt 5 should be freely penetrated in the hole, must not be forcibly knocked, must not be gas-cut and reamed, and the penetration direction should be consistent. The high-strength bolt 5 is tightened from the center outward by a torque wrench. When tightening, it is divided into initial tightening and final tightening, and the initial tightening should be 50% of the final tightening. After 1 hour of final screwing, within 24 hours, check the torque of bolt 5, which should be within ±10% of the theoretical check torque. When there is a gap on the contact surface of the high-strength bolt 5, the gap is less than 1.0mm and need not be treated; if the gap is 1.0-3.0mm, grind the higher side into a 1:10 slope, and the grinding direction is perpendicular to the direction of the force; if the gap is larger than 3.0mm, add pads plate. In addition to the anchor bolts 24, the diameter of the bolt 5 drilled on the steel structure 1 member of the tower-type three-dimensional garage is 1.5-2.0 mm larger than the diameter of the bolt 5, and the allowable deviation should be controlled within the specified range.

As shown in Figures 6 and 7, in this embodiment, during the construction of the foundation structure, after the prefabricated steel components are transported from the factory to the construction site, the site soil is first compacted and leveled, and a pavement is fully laid on the foundation within the building range. A layer of sandy soil layer 17 is used to increase the bearing capacity and avoid uneven settlement of the foundation. In order to avoid durability problems such as corrosion of steel beams, a layer of rubber layer 16 is first laid on the sandy soil layer 17, so as to realize the excavation-free foundation; The prefabricated reinforced concrete slab 12 is laid on the structural steel beam 13, and the prefabricated reinforced concrete slab 12 and the steel beam 13 are fixed by bolts 5 to realize full assembly, thereby forming the foundation and road required for the design. After the installation is completed, spray on the steel surface Slurry once increases the durability of the foundation.

The transportation of the prefabricated components adopts domestic trucks with a length of 9.6m and a width of 2.5m, and each component of the foundation is disassembled and designed according to the specifications of the truck. Combined with the requirements of transport vehicles, the first inner ring main beam is divided into 3 sections for processing, the second inner ring main beam is divided into 12 sections for processing; the third inner ring main beam is divided into 16 sections for processing; the outer ring main beam is divided into 16 sections for processing processing. The specific dimensions of each segment are shown in Table 1. For the convenience of construction, the connection between the main beam and the main beam should not be arranged at the connection between the steel column and the foundation. The remaining secondary beams are processed according to their respective actual lengths before being transported to the site. Each main girder weighs about 1 ton, and the on-site crane needs to meet the hoisting requirements.

Table 1 Material list

Since the steel foundation receives the concentrated force from the upper frame column, the main steel beam (HM400*300*10*16) and the secondary steel beam (HM300*200*8*12) are arranged radially along the direction of the column. The node domain at the joint between the foundation and the load-bearing frame columns is reinforced with outer ring plates and welded stiffeners. As a preference, a road with a width of 6m can be built outside the load-bearing frame columns of the outer ring to meet the requirements of vehicle driving and supporting roads. The road is also made of prefabricated concrete slabs.

In addition, during the entire assembly process of the foundation-excavation-free assembled tower-type three-dimensional garage described in this embodiment, all bolts 5 are used for assembly. The above-mentioned all-bolt 5 installation method is used for assembly, which avoids on-site welding operations and reduces the current workload. It not only helps to improve assembly efficiency, realizes the rapid construction of three-dimensional garages, but also avoids deformation and other quality problems caused by welding operations. . In addition, the steel structure is divided into different whole parts according to the function and the size limit of transportation and hoisting. Parts can be reused, energy saving and environmental protection.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (17)

1. a kind of basic digging-free assembled tower-type space garage, it is characterised in that including foundation structure and steel superstructure,

The steel construction includes being arranged with node, the column on column, plane framework, guide rail and accessory structure, the column Be connected by node using bolt with the plane framework, the plane framework using bolt respectively with the guide rail and described attached Belong to structure to be connected；

The foundation structure include girder steel, ground, the girder steel include primary and secondary girder steel, the primary and secondary steel girder erection in radially along Column direction, the girder steel is prefabricated construction, and rubber layer, sand are from top to bottom sequentially provided between the girder steel and ground Rock layers, the girder steel upper surface is equipped with precast rc slab, and the suspension column of the column passes through bolt and armored concrete Plate, the connection of main girder steel top flange.

2. basic digging-free assembled tower-type space garage according to claim 1, it is characterised in that the plane framework It is divided into inner ring main beam framework, outer ring main beam framework and support turntable frame, the guide rail is led including the first guide rail and second Rail, the accessory structure includes inner ring support stringer and outer ring support stringer；

Around the periphery of support turntable frame, radial multiple first guide rails of setting, one end and the branch of first guide rail Turntable frame connection is supportted, the other end of first guide rail is connected with the inner ring main beam framework, the support turntable frame It is in concentric circles with the inner ring main beam framework, first guide rail is located at the support turntable frame and the main horizontal stroke of the inner ring Between inner ring support stringer described two-by-two between beam framework；

Around the periphery of inner ring main beam framework, radial multiple second guide rails of setting, one end of second guide rail with it is described Inner ring main beam framework is connected, and the other end of second guide rail is connected with the outer ring main beam framework, the main horizontal stroke in outer ring Beam framework and the inner ring main beam framework are in concentric circles, second guide rail be located at the outer ring main beam framework with it is described Between outer ring described two-by-two support stringer between inner ring main beam framework.

3. basic digging-free assembled tower-type space garage according to claim 2, it is characterised in that the main horizontal stroke of inner ring Beam framework and the outer ring main beam framework include some sections of main beams, and every section of main beam two ends be separately mounted to it is adjacent On the node of two columns.

4. basic digging-free assembled tower-type space garage according to claim 2, it is characterised in that the accessory structure Also include vehicle support gate beam, one end of the vehicle support gate beam is connected with second guide rail, the vehicle The other end of support gate beam is connected with the outer ring support stringer.

5. basic digging-free assembled tower-type space garage according to claim 1, it is characterised in that the multi-storied garage Every layer of steel construction lays steel plate, and the steel plate is layed in the upper of the plane framework, the guide rail and the accessory structure Surface, and the steel plate is fixedly connected with the plane framework, the guide rail and the accessory structure, the rotatable disc peace On every layer of steel plate.

6. basic digging-free assembled tower-type space garage according to claim 1, it is characterised in that the reinforced concrete It is bolted between native plate and girder steel.

7. basic digging-free assembled tower-type space garage according to claim 1, it is characterised in that the girder steel upper limb Edge and armoured concrete slab are provided with bolt hole.

8. basic digging-free assembled tower-type space garage according to claim 1, it is characterised in that the main girder steel it Between use bolted end-plate connection.

9. basic digging-free assembled tower-type space garage according to claim 1, it is characterised in that the main girder steel with Secondary girder steel uses high strength exploitation.

10. basic digging-free assembled tower-type space garage according to claim 9, it is characterised in that the main girder steel Sectional dimension is HM400 × 300 × 10 × 16, and described girder steel sectional dimension is HM300 × 200 × 8 × 12.

11. basic digging-free assembled tower-type space garage according to claim 1, it is characterised in that the stereoscopic vehicle The steel that the steel construction in storehouse is used are H profile steels.

12. basic digging-free assembled tower-type space garage according to claim 11, it is characterised in that the H profile steel In be equipped with reinforcement, the reinforcement is located at the inner side of the H profile steel, and one end of the reinforcement and the H profile steel Top is connected, and the other end of the reinforcement is connected with the bottom of the H profile steel.

13. a kind of construction of basic digging-free assembled tower-type space garage as described in above-mentioned any one of claim 1 to 12 Method, it is characterised in that comprise the following steps：

The construction of foundation structure；

Column is fixed with node；

Plane framework is fixed with column；

Guide rail is fixed with plane framework；

Accessory structure is installed；

Lay steel plate.

14. the construction method of basis digging-free assembled tower-type space garage as claimed in claim 13, it is characterised in that base The construction of plinth structure, is specifically included：

Place rammed earth is flattened, one layer of ground upper berth sand stone layer；

One layer of sand stone layer upper berth rubber layer；

Prefabricated assembled girder steel is installed on ground.

Radial direction girder is installed；

According to gradually assembled ring girder from inside to outside；

Secondary beam is installed；

Prefabricated concrete floor is laid on girder steel, is bolted to connection.

15. the construction method of basis digging-free assembled tower-type space garage as claimed in claim 14, it is characterised in that flat Surface frame frame is fixed with column, specifically includes：

Inner ring main beam framework is fixed with the column positioned at inner ring；

Outer ring main beam framework is fixed with the column positioned at outer ring；

Lifting support turntable frame and fixation.

16. the construction method of basis digging-free assembled tower-type space garage as claimed in claim 15, it is characterised in that will Guide rail is fixed with plane framework, specifically includes：

First guide rail is fixed with support turntable frame, inner ring main beam framework respectively；

Second guide rail is fixed with inner ring main beam framework, outer ring main beam framework respectively.

17. the construction method of basis digging-free assembled tower-type space garage as claimed in claim 16, it is characterised in that peace The step of filling accessory structure, specifically also includes：

Inner ring support stringer is fixed with inner ring main beam framework；

Outer ring support stringer is fixed with outer ring main beam framework；

Vehicle gate beam is fixed with the second guide rail, outer ring support stringer respectively；

Repeat above procedure and carry out expansion installation, form complete plane framework.