CN116005870A - Pre-stress bamboo-wood structure floor slab component integration technology - Google Patents

Abstract

The invention discloses a prestressed bamboo-wood structure floor component integration technology, which relates to the technical field of prefabricated buildings, and specifically includes a bamboo-wood structure floor frame, prestressed lines, prestressed support pestles, sealing cushions, floor panels, and controllable accumulation tolerances seams, waterproofing membranes, sound-insulating fillers, ring-head bolts and turnbuckle bolts. Adjustable prestressed support rods are set between the bamboo-wood structure floor beams and joists. The prestressed line crosses the prestressed support rods and both ends are fixed on the floor frame. The prestress can be conveniently applied and adjusted through the prestressed support rods. The invention can effectively reduce the deflection of the large-span parts of the bamboo-wood structure and at the same time weaken the noise caused by frictional vibration between the parts, thereby greatly improving the overall stability and sound insulation performance of the floor parts, and meanwhile, it has the advantages of convenient tensioning and disassembly, and efficient maintenance and repair , factory standardized prefabrication and other advantages.

Description

A prestressed bamboo-wood structure floor component integration technology

technical field

The present invention relates to the technical field of prefabricated buildings, and more specifically relates to an integrated technology that utilizes post-tensioning prestressing to reduce the deflection of long-span components while eliminating noise caused by non-compacted components and frictional vibration.

Background technique

Bamboo-wood structure buildings are widely recommended at home and abroad for their excellent earthquake resistance and environmental friendliness, but often due to unreasonable structural design and other conditions, the isolation performance of floor slabs is poor, especially for low-frequency noise. The way to achieve sound insulation and noise reduction for traditional fabricated bamboo and wood components is to install sound insulation panels on the components, fill them with sound insulation cotton, and apply paint with noise reduction effects. Since the sound insulation construction is installed or sprayed after the floor and wall panels are assembled, the overall assembly efficiency is low, and the problem of sound insulation and noise reduction has not been fundamentally solved in terms of structure, structure and integration.

In addition, the current assembly parts of bamboo and wood structures are mostly non-prestressed structures, which have the following defects: 1. The span of the parts is limited, and the deflection of the parts is too large to cause the parts to vibrate; 2. The joints between the parts are not dense and easy to rub and vibrate. 3. The overall construction and assembly errors are large, and the controllability of cumulative tolerances between parts and components, components and components is low; 4. The comfort of the building is extremely low, and the floor and wall panels are resistant to deflection. Noise performance is poor.

Contents of the invention

In order to overcome the deficiency of deflection reduction and sound insulation of traditional bamboo and wood structure assembly parts, the present invention provides a new type of prestressed component integration technology, that is, bamboo and wood structure prestressed floor components integration technology, which draws lessons from the prestressed tension overall system The principle can effectively reduce the deflection of large-span components and controllably adjust the cumulative tolerance between components, thereby greatly improving the deflection reduction capability and sound insulation performance of the horizontal components of the floor. At the same time, it has the advantages of simple on-site construction, convenient tensioning and disassembly, efficient maintenance and repair, With the advantages of factory standardized prefabrication, it is especially suitable for the floor slab system of wooden structure venues with large spans, educational buildings, and courtyard residential buildings.

The technical scheme of the present invention is as follows: a prestressed bamboo and wood structure floor component integration technology, including a bamboo and wood structure floor frame composed of standard specification components, prestressed lines, adjustable prestressed support pestles, sealing cushions, floor panels, adjustable Accumulated tolerance joints, waterproof membranes, sound insulation filling layers, ring head bolts and turnbuckle bolts. The bamboo-wood structure floor frame of the integrated component is composed of two parts, which are the upper joist frame supporting the floor slab and the lower beam frame bearing load and transmitting force to the column; tolerance joints are set between the parts and the controllable adjustment Assembling accumulative tolerances, adding materials with cushioning properties in the tolerance joints, tensioning the parts while making the parts densely tensed; the prestressed lines pass through the U-shaped members of the joist frame in sequence from a single direction, and the two ends of the prestressed lines are fixed On the joists at the most ends, there are prestressed wire holes on the side of the U-shaped member of the joists, and wire hole sleeves are installed in the holes; the secondary beams of the floor beam frame are also connected by prestressed wires, and the secondary beams are also opened. There are prestressed line holes and sleeves; the prestressed lines are hinged at the ends of the upper and lower frames in the long span and short span directions; there is a fireproof board between the joist frame and the beam frame, and there is a fireproof board at the bottom of the beam frame. Waterproof coiled material, the sound-insulating filling layer inside the floor frame is filled with sound-absorbing and noise-reducing materials; the bamboo-wood structure floor beams and joists are provided with adjustable prestressed support pestles, and the prestressed lines cross the support pestles and are fixed at both ends On the beam or joist, the prestress can be conveniently applied and adjusted through the prestressed support pestle; the top of the adjustable prestressed support pestle is fixed on the upper and lower ends of the U-shaped joist of the joist frame through the support pestle fixing bolts, and the The fixing bolts adjust the bending moment level of the prestressed line, the prestressed support pestle fixed on the upper end of the joist adjusts the prestressed line in the short span direction of the joist frame / the prestressed support pestle fixed at the lower end of the joist adjusts the prestressed line in the long span direction of the beam frame The prestressed line crosses the fixed pulley of the support pestle, and the height of the fixed pulley is adjusted by adjusting the prestress adjustment bolt of the support pestle. A certain stress is applied to the prestressed line through the prestressed support rod, and the reaction force generated by the deformation acts on the bending members at both ends to resist the deformation generated when the long-span component is loaded.

The construction method of the present invention is as follows: during construction, the double-layer frame of the bamboo-wood structure floor is fixedly connected with the waterproof coiled material, and a sealing buffer pad is placed between the components, and the distance between them is controlled within the preset controllable cumulative tolerance joint interval Inside, the prestressed support pestle is fixed on the upper and lower ends of the U-shaped joist member of the joist frame, and the side of the U-shaped joist member and the secondary beam of the beam frame are opened at the corresponding positions to pass through the prestressed line sleeve, and then the The prestressed lines in the short-span direction of the joist frame, the prestressed lines in the long-span direction of the beam frame and the prestressed lines in the long-span direction of the joist frame pass through the wire hole sleeves of the corresponding components; Or turntable bolts refer to Figure 6 for connection; secondly, hinge and fix the ring head bolts at the end of the prestressed line with the long and short sides of the floor frame as shown in Figure 3 and Figure 4; then apply and adjust the prestressing pestle and turnbuckle bolts Prestressing, adjust the controllable cumulative tolerance joints, make the splicing between the parts dense, and at the same time generate upward reaction force, resisting the compressive weight when the load is applied; the bolts at the end of the prestressing line adjacent to the two parts are hinged to each other, and two in a single vertical direction The prestressed lines are arranged staggered up and down as shown in Figure 2; finally, the sound insulation filling material is sprayed inside the floor frame, and the floor slab and the bottom fireproof board are covered, and the integration of a bamboo-wood structure floor component is completed.

The beneficial effect of the present invention is: use the prestressed line to stretch the parts and the parts, so that the parts are dense, thereby cutting off the sound source of the frictional vibration between the parts; at the same time, the better tensile and deflection resistance of the prestressed line is exerted, eliminating the problem caused by Component shaking caused by deformation of long-span bamboo-wood structure components. This integrated technology effectively improves the overall stability of components, and at the same time has strong sound insulation and deflection reduction capabilities, convenient construction and installation, a high degree of industrialization, and reasonable economics, and can be applied to large-span bamboo-wood structure building floor slab systems.

Description of drawings

Fig. 1 is a schematic diagram of the integrated system of bamboo and wood structure floor components of the present invention.

Fig. 2 is a schematic diagram of connection of bamboo and wood structure floor components of the present invention.

Fig. 3 is a schematic diagram of the connection of the prestressed wires of the joist frame of the present invention.

Fig. 4 is a schematic diagram of connection of beam frame prestressing lines of the present invention.

Fig. 5 is an exploded layered view of the bamboo-wood structure floor component integration system of the present invention.

Fig. 6 is a schematic diagram of the prestressing line of the present invention.

Fig. 7 is a structural diagram of the adjustable prestressed support pestle of the present invention.

Fig. 8 is a structure diagram of the ring head bolt and the turnbuckle bolt of the present invention.

Among them: 1-bamboo-wood structure floor frame 2-prestressed line 3-prestressed support pestle 4-sealing buffer pad 5-floor panel 6-controllable cumulative tolerance joint 7-waterproof membrane 8-fireproof board 9-sound insulation filling Layer 10-ring head bolt 11-flower basket bolt 101-joist frame 102-beam frame 201-joist frame short-span direction prestressed line 202-beam frame long-span direction prestress 203-joist frame long-span direction prestressed line 301-support pestle fixing bolt 302-support pestle fixed pulley 303-support pestle prestress adjustment bolt.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

As shown in Figure 5, it is an exploded layered diagram of the integrated system of bamboo and wood structure floor components of the present invention, 1. Bamboo and wood structure floor slab frame 2, prestressed line 3, prestressed support pestle 4, sealing buffer pad 5, floor plate 6, Controllable cumulative tolerance joint 7, waterproof membrane 8, fireproof board 9, sound insulation filling layer 10, ring head bolt 11, turnbuckle bolt 101, joist frame 102, beam frame 201, joist frame short-span direction prestressing line 202 , beam frame long-span direction prestressing line 203, joist frame long-span direction prestressing line 301, supporting pestle fixing bolt 302, supporting pestle fixed pulley 303, supporting pestle prestressing adjusting bolt; as shown in Figure 3 and Figure 4 The joist frame 101 and the beam frame 102 are standardized prefabricated components, using a bamboo-wood structure frame, and laying a waterproof membrane 7 between the two frames. First, the three are assembled and fixed. At the same time, as shown in FIG. A controllable cumulative tolerance seam 6 is set between the parts, and an elastic sealing cushion 4 is placed in the tolerance seam; next, the top of the prestressed support pestle 3 is fixed on the U-shaped shelf of the joist frame through the support pestle fixing bolt. The upper and lower ends of the grid, and prestressed line holes are opened on the joist components in the long span direction of the bamboo-wood structure floor joist frame 101, steel sleeves are placed in the line holes, and the prestressed lines 203 are sequentially passed through the U-shaped components of the joists side, both ends are hinged at the end of the joist frame through bolts; as shown in Figure 3, the two ends of the joist frame long-span direction prestressing line 203 are hinged at the end of the joist frame by connecting turnbuckle bolts 11 and ring head bolts 10 in turn. The short side of the grid frame; in the same way, in the short span direction of the bamboo-wood structure floor joist frame 101, the prestressed line 201 passes through the prestressed support pestle 3 and the two ends are hinged on the long side of the joist; the joist frame One end of the prestressing line 201 in the short-span direction is directly hinged to the long side of the joist through the ring head bolt 10, and the other end is hinged to the long side of the joist frame by connecting the turnbuckle bolt 11 and the ring head bolt 10 in turn; In the span direction, open a prestressed line hole on the secondary beam member, place a sleeve in the line hole, pass the prestressed line 202 through multiple secondary beam members and the two ends of the prestressed support rod 3 and hinge on the short side of the beam frame; As shown in Figure 4, one end of the beam frame long-span direction prestressing line 202 is directly hinged on the short side of the beam frame through the ring head bolt 10, and one end is sequentially connected to the turnbuckle bolt 11 and the ring head bolt 10 to be hinged on the short side of the beam frame; As shown in Figure 6, one side of the circle head of the turnbuckle 11 is connected to the prestressing line 2, and the side of the hook head is connected to the circle head bolt 10; after the prestressing line and the bolt are fixed, as shown in Figure 7, the The bolt 301 adjusts the bending moment level of the prestressed line; the prestressed support pestle fixed at the upper end of the joist adjusts the prestressed line 201, and the prestressed support pestle fixed at the lower end of the joist adjusts the prestressed line 202; the prestressed line spans Through the fixed pulley 302 of the supporting pestle, the lifting of the fixed pulley is adjusted by adjusting the prestressing adjustment bolt 302 of the supporting pestle; next, by applying and adjusting the prestressing force on the prestressed pestle and the turnbuckle bolt, the splicing of the parts is dense, and at the same time, an upward reaction force is generated. The compressive weight when resisting the load; as shown in Figure 3, the ends of the prestressed lines adjacent to the two parts are hinged to each other through the ring head bolts 10, and the two prestressed lines are arranged vertically in a staggered manner; finally sprayed on the inside of the floor frame The sound insulation filling material 9 covers the floor panel 5 and the bottom fireproof board 8, and the integration of a bamboo-wood structure floor component is completed here.

Claims (10)

1. An integration technology of prestressed bamboo and wood structure floor components, the integrated components include bamboo and wood structure floor frame (1), prestressed wire (2), prestressed support pestle (3), sealing cushion (4), floor Panel (5), controllable cumulative tolerance joint (6), waterproof membrane (7), fireproof board (8), sound insulation filling layer (9), ring head bolt (10) and turnbuckle bolt (11); its characteristics The reason is that: the wood structure floor frame (1) of the integrated component is composed of two parts, which are divided into the upper joist frame (101) supporting the floor plate and the lower beam frame (102) bearing the load and transmitting force to the column; the adjustable The prestressed support pestle (3) is fixed on the U-shaped joist of the upper joist frame, and the prestressed line (2) is hinged to the long-span and short-span direction ends of the floor frame through the ring head bolt (10) and the turnbuckle bolt (11) There is a fireproof board (8) between the joist frame (101) and the beam frame (102); there is a waterproof membrane (7) at the bottom of the beam frame (102); the sound insulation inside the floor frame (1) The filling layer (9) is filled with sound-absorbing and noise-reducing materials. 2. A prestressed bamboo-wood structure floor component integration technology according to claim 1, characterized in that: there is a controllable cumulative tolerance joint (6) between the components, and there is a sealing cushion between the tolerance joints ( 4). 3. A prestressed bamboo-wood structure floor component integration technology according to claim 1, characterized in that: in the long-span direction of the joist frame (101) of the bamboo-wood structure floor, prestressed U-shaped components are opened on the joist Wire holes, sleeves are arranged in the wire holes, the prestressed wires (203) pass through the U-shaped members of the joists in sequence, and the two ends are hinged to the ends of the joists by bolts; the long-span direction prestressed wires of the joist frame ( 203) The two ends are hinged on the short side of the joist frame by connecting the turnbuckle bolts (11) and ring head bolts (10) in turn. 4. The integration technology of prestressed bamboo-wood structure floor components according to claim 1, characterized in that: in the short-span direction of the bamboo-wood structure floor joist frame (101), the prestress line (201) passes through the prestress The supporting pestle (3) and its two ends are hinged on the long side of the joist frame; one end of the short-span direction prestressing line (201) of the joist frame is directly hinged on the long side of the joist frame through the ring head bolt (10), and the other end is sequentially Hinged to the long side of the joist frame by connecting turnbuckle bolts (11) and ring head bolts (10). 5. A prestressed bamboo-wood structure floor component integration technology according to claim 1, characterized in that: in the long-span direction of the bamboo-wood structure floor beam frame (102), prestressed line holes are opened on the secondary beam components, Sleeves are arranged in the line holes, and the prestressed lines (202) pass through multiple secondary beam members and the two ends of the prestressed support pestle (3) are hinged on the short side of the beam frame; the prestressed lines in the long-span direction of the beam frame (202) One end is directly hinged to the short side of the beam frame through the ring head bolt (10), and the other end is connected to the turnbuckle bolt (11) and the ring head bolt (10) in turn to be hinged to the short side of the beam frame. 6. The integration technology of prestressed bamboo and wood structure floor components according to claim 1, characterized in that: the circle head side of the turnbuckle bolt (11) is connected to the prestressing line (2), and the hook head side is connected to the circle head bolt (10). 7. The integration technology of prestressed bamboo and wood structure floor components according to claim 1, characterized in that: the top of the prestressed support pestle (3) is hinged to the U-shaped joist of the joist frame through the support pestle fixing bolt (301) At the upper and lower ends, the bending moment value of the prestressed line is adjusted by supporting the fixing bolts (301) to produce elastic deformation; the prestressed support pestle fixed on the upper end of the joist adjusts the prestressed line (201), and the prestressed pestle fixed on the lower end of the joist The supporting pestle adjusts the prestressing line (202); the prestressing line straddles the supporting pestle fixed pulley (302), and the height of the fixed pulley is adjusted by adjusting the supporting pestle prestress adjusting bolt (303). 8. The integration technology of prestressed bamboo and wood structure floor components as claimed in claim 1, characterized in that: said prestressed line (2) is hinged to two adjacent components through ring head bolts, and two vertical prestressed lines The lines are arranged up and down; the prestressed lines (2) are made of materials such as prestressed steel strands, prestressed steel wire bundles, precision-rolled rebar or FRP bars with stress-relieving and tensile properties. 9. The sealing cushion according to claim 2, characterized in that: the sealing cushion (4) is high and low temperature resistant, high damping EPDM rubber, butyl rubber, neoprene, nitrile Rubber, silicone rubber and other materials; the sound-insulating filling layer includes water-based polyurethane, low-foaming polyurethane, high-density eps board, mineral wool and glass fiber cotton and other filling materials with functions such as sound absorption, thermal insulation, and fire prevention. 10. The metal connector according to claim 1, characterized in that all outer surfaces of the prestressed support pestle (3), ring head bolts (10) and turnbuckle bolts (11) are galvanized.

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