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WO1997038166A1 - Ouvrage de franchissement a assemblage rapide - Google Patents

Ouvrage de franchissement a assemblage rapide Download PDF

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Publication number
WO1997038166A1
WO1997038166A1 PCT/CN1996/000025 CN9600025W WO9738166A1 WO 1997038166 A1 WO1997038166 A1 WO 1997038166A1 CN 9600025 W CN9600025 W CN 9600025W WO 9738166 A1 WO9738166 A1 WO 9738166A1
Authority
WO
WIPO (PCT)
Prior art keywords
bridge
beams
longitudinal
prefabricated
holes
Prior art date
Application number
PCT/CN1996/000025
Other languages
English (en)
French (fr)
Inventor
Fuchang Lu
Original Assignee
Fuchang Lu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuchang Lu filed Critical Fuchang Lu
Priority to PCT/CN1996/000025 priority Critical patent/WO1997038166A1/zh
Priority to AU53308/96A priority patent/AU5330896A/en
Publication of WO1997038166A1 publication Critical patent/WO1997038166A1/zh

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/12—Portable or sectional bridges
    • E01D15/133—Portable or sectional bridges built-up from readily separable standardised sections or elements, e.g. Bailey bridges

Definitions

  • the invention relates to an overpass and a construction method thereof, and in particular to an overpass structure and a construction method thereof that can be quickly constructed without the need for an additional construction site, and the overpass is particularly applicable to a traffic flow in a prolific area in a city and it is impossible to have construction In the case of the site, it is used for the construction of the Onai Interchange, and it can be dismantled and assembled, so it can be reused for mass production.
  • current technology is used for the construction of the Onai Interchange, and it can be dismantled and assembled, so it can be reused for mass production.
  • the existing overpasses mainly include steel bridges, cement concrete bridges and other types of bridges.
  • all existing overpasses must have sufficient auxiliary force to open the construction site to store various equipment and carry out construction operations. It is very difficult to set up a bridge in the bustling section of the city.
  • the existing interchanges are all integral reinforced concrete structures or steel frames riveted, welded structures, and once damaged due to war or earthquake, it is very difficult to completely remove them. Reconstruction and demolition are also laborious and time consuming. Description of the invention
  • the purpose of the present invention is to propose an overpass construction method and the structure of the overpass without the need for additional facilities.
  • These overpasses can be directly constructed and assembled on the quasi-road surface, without the need for additional facilities and construction sites. Digging the earth to build another foundation, just transport the prefabricated parts to the site for assembly. In addition, the construction period is short, and disassembly is also convenient. In addition, it is cheap and durable.
  • the present invention proposes a fast-assembled permanent automobile pedestrian overpass, which has an approach bridge section and a main bridge section and includes bridge columns, beams, longitudinal beams, bridge deck members, guardrails, and reflective film equipment, It is characterized in that the overpass also has:
  • a strip foundation which is a rectangular concrete preform in the shape of a right-angled hexahedron, is embedded with a plurality of embedded steel plates with steel bars, and the steel plate and the strip foundation have holes for passing expanded ruthenium.
  • the bridge pillar is a steel prefabricated part with a support steel plate fixed at both ends of the I-shaped cross-section; the support steel plate has several holes for passing bolts; the bridge pillar can be different according to the bridge height where it is located. Height; the bridge pillar is erected on the embedded steel plate of the strip foundation, and is fixed to the strip foundation by expansion screws and / or welding;
  • the beam is a steel prefabricated part with an I-shaped cross section, and the I-shaped wings on both ends of the beam are provided with a plurality of holes for penetrating bolts; the beam is spanned on two transversely adjacent bridge posts, and the two ends of the beam are The support steel plates of the bridge pillars are fixed by bolts and / or welding through holes in them;
  • the longitudinal beam is a steel prefabricated part with an I-shaped cross-section, and is bent into an arch shape along the longitudinal centerline of the I-shaped web, and the I-shaped wings on both ends thereof each have a plurality of holes for passing bolts;
  • the board is provided with a plurality of holes for installing longitudinal beam connecting rods; the longitudinal beams are spanned between two longitudinally adjacent transverse beams, and the upper ends of the beams and the upper beams of the beams are pressed and fastened by means of holes at both ends of the beams. And / or welding;
  • the longitudinal beam connecting rod is a tubular prefabricated part, and nuts are respectively fixed at both ends thereof; the longitudinal beam connecting rod is installed between two transversely adjacent longitudinal beams through holes in the web of the longitudinal beam;
  • the prefabricated arch is a frame-shaped reinforced concrete prefabricated part, the height and width of which are adapted to the height of the bridge pillars and the distance between the two adjacent longitudinal columns, respectively. Between the columns; the inside of the top of the prefabricated arch is arched;
  • the bridge head stop is an L-shaped reinforced concrete prefabricated part, which has depressions and protrusions on both sides of the bottom, and a number of bridge head stops are abutted longitudinally.
  • the ⁇ depressions and protrusions of adjacent bridge head stops are wedged into each other and arranged on the approach bridge.
  • the two sides between the longitudinally adjacent two bridge pillars in the segment cover the space between the bridge pillars in the vertical portion; the top edge of the vertical plane is inclined, and the inclination is adapted to the inclination of the approach bridge segment;
  • the deck structure is a steel plate, which is welded to the top of the arched longitudinal beam, and the adjacent longitudinal beams are flattened with filling materials.
  • the invention also proposes a construction method of a fast-assembled permanent automobile pedestrian overpass, which is characterized in that the steps of the construction method are:
  • the strip foundation is prefabricated by the method of manufacturing a reinforced concrete prefabricated part.
  • the strip foundation is a long strip in the shape of a right-angled hexahedron, and a plurality of embedded steel plates with steel bars are embedded at predetermined intervals during the prefabrication.
  • the surface is flush, and the steel plate is formed with the strip base on which it is located.
  • a plurality of holes for penetrating the expanded spiral ruthenium, a plurality of spaced-apart longitudinal ribs are integrally formed at both ends of the lower surface of the strip base, and a plurality of hooks are embedded;
  • the bridge pillar is welded with steel plates to form a number of I-shaped bridge pillars, and support steel plates perpendicular to the bridge pillars are welded to the two ends of the bridge pillars respectively. Holes to form bridge pillars, and the height of each bridge pillar is adapted to the height of the bridge where it is located;
  • Beams which are formed by welding steel plates to form I-shaped beams, and a plurality of holes are respectively drilled on the wing plates at both ends of the beams to pass through the bolts;
  • the longitudinal beam is cut in advance with a convex arc in the upper part; a concave web in the lower part, which is bent to form a curved wing spanner adapted to the convex arc and the four arcs of the web, and the web is welded to the wing spanner to form
  • a number of arched longitudinal beams whose cross sections are curved along the longitudinal centerline are I-shaped, and several holes are drilled on the wing plates at both ends for penetrating bolts; the spans of each longitudinal beam are adapted to the distance between adjacent arch beams;
  • the bridge head stop is a prefabricated reinforced concrete bridge head stop.
  • the vertical slope of the top edge of the vertical plane is compatible with the approach section inclination, and the height is compatible with the bridge pillar height of the approach bridge section.
  • the distance between two adjacent bridge columns of the bridge section is the same, and a number of hooks are embedded.
  • the foundation is buried in a shallow pit on the road;
  • the bridge pillars are sequentially erected on the embedded steel plate of the foundation in sequence, and the expansion screws are installed in the holes thereon, and the bridge pillars are fixed on the foundation with expansion screws and / or welding;
  • the arched longitudinal beam is spanned on two longitudinally adjacent transverse beams, and bolts are arranged in the holes at the two ends of the arched beam. Tighten the bolts to slightly deform the arched longitudinal beams to form prestress. Use the bolts and / or Welding the longitudinal beams and crossbeams;
  • FIG. 1 is a schematic elevation view of an overpass proposed by the present invention
  • 2A and 2B are a schematic plan view and a deflecting view of the strip foundation, respectively;
  • Figures 3 A and 3 B are a schematic front view and a longitudinal schematic view of the two ends of the bridge column, respectively;
  • Figures 4 A and 4 B are a schematic side view and a top view of the beam, respectively;
  • 5A and 5B are a schematic bottom view and a side view of a stringer, respectively;
  • Figures 6 A and 6 B are a schematic cross-sectional view and a side view of a stringer link, respectively;
  • Figures 7 A, 7 B, and 7 C are a front view, a side view, and a top view of a prefabricated arch, respectively.
  • FIGS 8A and 8B are schematic front and side views of the bridgehead, respectively. Best example
  • the overpass bridge 1 proposed by the present invention has a main bridge section 1-1 and an approach bridge section 1 ⁇ 2.
  • the overpass 1 is composed of a plurality of foundations 2 , a number of bridge columns 3, a number of beams 4, a number of longitudinal beams 5, a number of longitudinal beam links 6, a number of prefabricated arches 7, a number of bridge heads 8, a guardrail, and a reflective film device.
  • the article group is a prefabricated reinforced concrete member 2, as long as a right-angled hexahedral shape, having three integrally reinforced 2 - contented of embedded steel bars 21 embedded in the base 1
  • the surface of the embedded steel cymbal 2 ⁇ 1 is flush with the long surface of the strip base 1.
  • the steel plate 2.1 and the strip base 1 on which it is located have 8 holes 2.5 for installing expanded ruthenium ruthenium. uniformly spaced apart on the substrate 2 having three embedded four hook 2 - 2 bar embedded in the base 2, the lower surfaces of both the base strip 2 having a arched arcuately curved ribs laterally spaced apart longitudinally extending 2. 3, the ribs 2.3 bar base 2 prevents lateral displacement.
  • the bridge pillar 3 is a steel body welded into an I-shaped column, and its two ends are respectively welded with a support steel wrench 3 ⁇ 1 perpendicular to its longitudinal axis, and the lower end supports the steel wrench 3.
  • the size and position of the holes are the embedded steel plates 2.1.
  • the size and position of the holes on the 2.1 are adapted.
  • the size and position of the holes on the upper support steel are related to the beams.
  • the hole ends 4 - 1 adapt sizes.
  • There are several bridge columns 3 the height of which corresponds to the height of the bridge where it is located.
  • the beam 4 is a beam member welded by steel plates, and the wing plates at both ends of the beam 4 have holes 41 for bolt connection with the bridge column 3 and the stringer 5 .
  • the stringer 5 is a welded steel plate prefabricated with an I-shaped cross-section.
  • the web 5 »3 has a convex arc at the upper edge and a concave arc at the lower edge. 5.4 Compatible with the upper and lower arcs of the web. After welding, they are preformed into arches that bend along the longitudinal centerline.
  • the ends of the lower edge wing plate 5 * 4 have a number of beams and beams. 4
  • the holes 5 ⁇ 2 are two groups of three.
  • the stringer link 6 is a prefabricated pipe fitting, and nuts 6.1 are welded to the two ends thereof, respectively.
  • the prefabricated arch 7 is a reinforced concrete prefabricated part.
  • the prefabricated arch 7 is frame-shaped, and the inside top is arch-shaped. Its height and width are between the two bridge pillars 3 at the main bridge section. The width and length are adapted. And has a number of hooks 7.1.
  • the bridge head stop 8 is a reinforced concrete prefabricated part with an L-shaped cross section.
  • the top edge of the vertical face is inclined, and the inclination and the inclination are the same as those of the approach bridge 1.2.
  • the heights are the same.
  • the two sides of the horizontal face have depressions 8.2 and bulges 8, 3, respectively.
  • the bridgehead arch 8 abuts side to side.
  • the four depressions 8, 2 and bulges on the adjacent bridgehead arch 8. 8.3 wedged into each other, the width of the ⁇ bridgehead arches 8 is the same as the width between the two bridge pillars at the approach bridge section (n is a tuck), and the bridgehead arch 8 also has a hook 8, 1.
  • the bridge pillar 3 stands on the embedded steel plate 2.1 with the strip foundation 2 respectively, and the bridge pillar 3 and the strip foundation 2 are connected with expanded ruthenium and / or welding.
  • the cross beams 4 are respectively erected on the bridge pillars 3 , and are connected to the bridge pillars 3 by using bolts and / or welding.
  • the longitudinal beams 5 are respectively erected on the cross beams 4, and the two ends thereof are fastened to the cross beams 3 with screws.
  • each longitudinal beam 5 is abutted against each other, and can be fixed to the transverse beam 4 by welding, and the longitudinal connecting rods 6 are respectively located at the longitudinal beam 5
  • the side member link 6 is attached between each side member 5 by using a nail to pass through a hole 5.2 in the web 5.3.
  • the prefabricated arches 7 are located laterally overlapping each other between the bridge pillars 3 below the main bridge section.
  • the bridge head arches 8 are arranged vertically in the two columns between the bridge columns 3 of the approach bridge section. And its vertical face covers both sides of the approach bridge section, and the opposite side of the bridge head arch 8 is filled with sand and soil.
  • the overpass construction method proposed by the present invention is to prefabricate a bridge assembly at a non-construction site in advance, and then transport the prefabricated components to the construction site group to establish an overpass, which is characterized by:
  • the base 2 is shown in Figures 2A and 2B;
  • a number of prefabricated beams 4 are prefabricated, as shown in Figs. 4A and 4B;
  • a number of prefabricated longitudinal beams 5 are prefabricated, as shown in Figs. 5A and 5B.
  • Prefabricated longitudinal beam links 6 are shown in Figs. 6A and 6B; prefabricated prefabricated arches 7 are shown in Figs. A and 7C; The bridge crotch 8 is shown in Figs. 8A and 8B;
  • the beam 4 is erected on the bridge pillar 3, and its two ends are fixed to the bridge pillar 3 with bolts and / or welding;
  • the longitudinal beams 5 are mounted on the two ends of each cross beam 4 with the longitudinal Non end of the beams, and the ends of each longitudinal beam 5 and the end of the spare beam 4 are tightened with bolts, and then welded to make them Fixedly connected to the end of the beam 4;
  • the prefabricated arches 7 are arranged laterally overlapping between the bridge pillars 3 of the bridge section;
  • the bridgehead stall 8 is vertically arranged between the auxiliary bridge pillars 3 of the approach bridge section, and the space between the bridgehead stall 8 is filled with sand and stone;

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Description

快速装配立交桥 及领域
本发明涉及立交桥及其施工方法， 特别涉及一种不需另设施工 场地并可快速组建的立交桥结构及其施工方法， 该立交桥尤其可适 用于城巿内繁华地区交通流量大且不可能具有施工现场的情况下， 作为巿内立交桥的施工建造， 并且， 这种立交桥可折卸和组装， 因 此是可重复使用大批生产的。 现有技术
现有立交桥主要有钢桥， 水泥混凝土桥以及其它形式的桥， 所 有现有的立交桥在施工时， 都必须开辟足够大的附力 Π施工现场以便 储放各种器材和进行施工作业， 这对于城巿内繁华地段架设立交桥 是十分难以满足的， 都巿中楼宇林立， 交通繁忙， 要中断交通， 搬 迁住户必然造成极大困难， 甚至不可能实现。 而且现有立交桥均系 整体钢筋混凝土结构或钢架铆接， 焊接结构， 一旦因战争或地震形 成破坏， 要彻底清除也十分困难。 若要改建拆除也很费力费时。 发明描述
为此， 本发明的目的是要提出一种不需另设施工现场的立交桥 施工方法及该立交桥的结构， 这些立交桥可在 ：准公路路面上直接 施工组装， 不需另设施工场地， 不需挖掘土方另建基础， 只要将预 制件运至现场组装即可。 而且建造时期短， 折卸也方便， 此外， 造 价低廉经久耐用。
为达到上述目的， 本发明提出一种快速组装的永久汽车行人综 合立交桥， 该立交桥具有引桥段和主桥段并包合桥柱， 横梁， 纵梁, 桥面构件， 护栏， 反光膜设备， 其特征是， 该立交桥还具有：
条基， 该条基为呈直角六面体形的长条状混凝土预制件， 其中 埋设有若干个带钢筋的预埋钢板， 该钢板和与其所在的条基上具有 若干供穿设膨胀嫘钌的孔； 条基上还具有若干吊钩； 预埋钢板与条 基顶面平齐， 条基埕设在路面上的浅坑中； 条基下表面两端分别具 有若干间隔开的纵向延伸的拱弧形筋条；
所述桥柱为断面呈工字形的两端分别固接有支承钢板的钢预制 件； 该支承钢板上具有若干为穿设螺栓的孔； 桥柱可依据其所在处 的桥高而有不同的高度； 该桥柱立设于条基的预埋钢板上， 并以膨 胀螺钉和 / 或焊接使其与条基固接；
所述横梁为断面呈工字形的钢预制件， 其两端的工字形的翼扳 上分别具有若干为穿设螺栓用的孔； 橫梁跨设于橫向相邻的两桥柱 上， 其两端与桥柱的支承钢板之间通过其上的孔以螺栓和 / 或焊接 固接；
所述纵梁为断面呈工字形的钢预制件， 并且沿工字形腹扳纵向 中心线弯成拱形， 其两端的工字形翼扳上分别具有若干为穿设螺栓 的孔； 其工字形腹板上具有若干为装设纵梁连杆的孔； 所述纵梁跨 设在纵向相邻的两横梁之间， 借助于其两端的孔与横梁上端的孔以 螺栓穿设而压紧固接和 / 或焊接；
纵梁连杆为管形预制件， 其两端分别固接有螺母； 该纵梁连杆 通过纵粱腹板上的孔用螺钉而装设在横向相邻的两纵梁之间；
预制拱为框形钢筋混凝土预制件， 其高度和宽度分别与桥柱高 度和纵向相邻两桥柱的间距相适配， 若干预制拱橫向重叠地设置在 主桥段的纵向相邻的两桥柱之间； 该预制拱顶部内侧呈拱形；
桥头挡为呈 L形的钢筋混凝土预制件， 其底部两侧分别具有凹 陷和凸起， 并且若干桥头挡以纵向接靠， 相邻桥头档的 ω陷与凸起 相互楔入而排列在引桥段的纵向相邻两桥柱之间的两侧， 其竖直部 封盖桥柱间的空处； 其竖直面顶边倾斜， 倾斜度与引桥段倾斜度相 适应；
桥面结构为钢板， 其与拱形纵梁的拱起顶部焊接， 相接的纵梁 处以充瑱物瑱平。
本发明还提出一种快速组装的永久汽车行人立交桥的施工方法, 其特征是， 该施工方法的步骤为：
1 、 在非立交桥的组建现场处， 预制以下组件：
(1 ) 条基， 以钢筋混凝土预制件制作方法预制该条基， 条基 为呈直角六面体形的长条状， 预制时以预定间隔埋设若干带有钢筋 的预埋钢板， 钢板与条基顶面平齐， 钢扳与其所在的条基上形成有 若干供穿设膨胀螺钌的孔， 条基下表面的两端分别一体地形成有间 隔开的若干条纵向延伸的筋条， 并且预埋有若干吊钩；
(2 ) 桥柱， 以钢板焊接制成工字形的若干桥柱体， 并在桥柱 体两端分别焊接与桥柱体垂直的支承钢板， 该钢扳上钻沿若干供嫘 栓穿设的孔而形成桥柱， 各桥柱高度与其所在处桥高相适应；
(3 ) 横梁， 以钢扳焊接制成工字形的若干横粱， 其两端翼板 上分别钻设若干供嫘栓穿设的孔；
(4 ) 纵梁， 预先截切上部为凸弧； 下部为凹弧的腹板， 弯曲 形成弯曲的分别与腹板凸弧、 四弧相适应的翼扳， 将腹扳与翼板焊 接而形成沿纵向中心线弯曲的断面为工字形的若干拱形纵梁， 并在 两端的翼板上钻设供穿设嫘栓的若干孔； 各纵梁跨度与相邻拱梁之 间距相适应；
(5 ) 纵梁连杆， 截切管件， 并在其两端分别焊接螺母而形成 纵梁连杆， 其长度与相邻纵梁之间距适应；
(6 ) 预制拱， 以钢筋混凝土预制若干框形预制拱， 其内侧顶 部为拱形， 并预埋若干吊钩； 其髙度与宽度分别与主桥段相邻的桥 柱之间的空间的高度与宽度相适应；
(7 ) 桥头档， 以钢筋混凝土预制桥头挡， 其竖直面顶边倾斜 度与引桥段倾斜度相适应， 其高度与引桥段桥柱高相适应， 几个桥 头档的宽度与引桥段相邻两桥柱的间距一致， 并预埋设若干吊钩。
(8 ) 截切适当尺寸的桥面钢板。
2 、 将上述预制件运至架桥部位；
3 、 将条基埋设在路面上的浅坑内；
4 、 将桥柱依序竖立在条基的预埋钢板上， 并以膨胀螺钉装入 其上的孔中， 以膨胀螺钉和 / 或焊接将桥柱固定在条基上；
5 、 将横梁跨架在横向相邻的两桥柱上， 以嫘栓穿设在其上的 孔中， 用该嫘栓和 / 或焊接将横梁与桥柱固接；
6 、 将拱形纵梁跨架在纵向相邻两橫梁上， 以螺栓穿设在其两 端的孔中、 拧紧该螺栓使拱形纵梁略有变形而形成预应力， 以该螺 栓和 / 或焊接将纵梁和横梁固接；
7 、 将纵梁连杆设于纵粱之间以螺钉穿过纵梁腹扳上的孔将纵 梁连扞装设在纵梁之间；
8 、 将各拱形纵梁接靠处的 IHJ陷部位用砂浆填平； 9 、 将桥面钢扳焊接到拱形纵梁的拱起的顶部处；
1 0 、 装设护栏和反光膜设备， 则完成立交桥的组建。
也可再在桥面钢扳上铺设防滑材料。
也可在相对设置的 L 型桥头挡之间充瑱沙土等充瑱物。 附图简述
图 1 是本发明提出的立交桥的立面示意图；
图 2 A和 2 B分别是条基的俯视示意图和恻视示意图；
图 3 A和 3 B分别是桥柱的正视示意图和两端的纵向示意图； 图 4 A和 4 B分别是橫梁的侧视示意图和顶视示意图；
图 5 A和 5 B分别是纵梁的仰视示意图和侧视示意图；
图 6 A和 6 B分别是纵梁连杆的剖视示意图和侧视示意图； 图 7 A、 7 B和 7 C分别是预制拱的正枧示意图和侧剖示示意 图和顶视示意图。
图 8 A和 8 B分别是桥头档的正视和侧视示意图。 饅佳实施例
本发明提出的立校桥 1 如图 1 所示， 该立交桥具有主桥段 1 - 1 和引桥段 1 · 2 。 该立交桥 1 由若干条基 2 , 若干桥柱 3 , 若干 橫梁 4 , 若干纵梁 5 , 若干纵梁连杆 6 , 若干预制拱 7 ， 若干桥头 档 8 以及护栏， 反光膜设备组成。
如图 2 A、 2 B所示， 条基 2 为钢筋混凝土预制件， 为呈直角 六面体的长条体形， 三块一体地具有钢筋 2 - 的预埋钢恹 2 . 1 埋设在条基 1 中， 预埋钢恹 2 · 1 的表面与条基 1 的长表面平齐， 该钢扳 2 . 1 与其所在的条基 1 上具有 8 个供膨胀嫘钌装设的孔 2 . 5 , 一个条基 2 上均匀间隔地具有三块预埋四个吊钩 2 - 2 埋设在 条基 2 中， 条基 2 的下表面两端具有横向间隔开的纵向延伸的成弧 形的拱弧形筋条 2 · 3 , 该筋条 2 . 3 可阻止条基 2 侧向移位。
如图 3 A , 3 B所示， 桥柱 3 为以钢扳焊接成工字形的柱体， 其两端垂直其纵轴线地分别焊接有支承钢扳 3 · 1 , 该下端支承钢 扳 3 . 1 上具有 8 个供膨胀嫘钌穿设的孔， 该孔的大小与位置分别 是预埋钢板 2 . 1 上的孔的大小与位置相适应， 上端支承钢的孔的 大小与位置则与橫梁端头的孔 4 - 1 的大小尺寸相适应。 桥柱 3 有 若干根， 其高度与所在处桥高相适应。 如图 4 A和 4 B所示， 橫粱 4 为钢板焊接成的梁件， 其两端翼 板上具有用来与桥柱 3 和纵梁 5 螺栓连接的孔 4 1 。
如图 5 A和 5 B所示， 纵梁 5 为断面呈工字形的钢板焊接预制 件， 腹板 5 » 3 上边缘为凸弧形， 下边缘为凹弧形， 呈弧形弯曲的 翼板 5 . 4 与腹板的上、 下弧形相适应， 经焊接后而预制成沿纵向 中心线弯曲的拱形件， 下边缘翼板 5 * 4 的两端分别具有若干用来 与横粱 4 连接而穿设螺栓的孔 5 . 1 ， 腹板 5 . 3 上还具有若干为 装设纵梁连杆 6 的孔 5 · 2 , 该孔 5 · 2 两个一組共三组。
如图 6 A和 6 B所示， 纵梁连杆 6 为预制管件， 其两端分别焊 接有螺母 6 . 1 。
如图 7 A和 7 B所示， 预制拱 7 为钢筋混凝土预制件， 该预制 拱 7 呈框形， 其内侧顶部为拱弧形， 其高度与宽度与主桥段处两桥 柱 3 之间的宽度和髙度相适应。 并具有若干吊钩 7 . 1 。
如图 8 A和 8 B所示， 桥头挡 8 为断面呈 L形的钢筋混凝土预 制件， 其竖直面部的顶边倾斜， 其倾斜度和髙度与引桥段 1 . 2 的 倾斜度和高度相一致， 其水平面部的两恻分别具有凹陷 8 . 2 和凸 起 8 , 3 , 桥头拱 8 侧边对侧边抵靠， 该相邻桥头拱 8 上的四陷 8 ， 2 和凸起 8 . 3 相互楔入， η 个桥头拱 8 的宽度与引桥段处两桥柱 之间的宽度一致 (n 为整敫） , 桥头拱 8 上也具有吊钩 8 , 1 。
所述条基 2 理设路面上挖掘的浅坑内， 桥柱 3 分别立设有条基 2 的预埋钢板 2 . 1 上， 用膨胀嫘钌和 / 或焊接使桥柱 3 与条基 2 连接。 横梁 4 分别架设在桥柱 3 上， 并用嫘栓和 / 或焊接使之与桥 柱 3 相互连接， 纵梁 5 分别架设在橫梁 4 上其两端用螺拴使之紧固 地与横梁 3 拧紧连接， 从而使纵梁 5 趋向进一步弯曲而形成预应力, 各个纵梁 5 是相互端头紧抵的， 可再以焊接将其与橫梁 4 固接， 纵 紧连杆 6 分别位于纵梁 5 之间， 以嫘钉穿过其腹板 5 . 3 上的孔 5 . 2 而将纵梁连杆 6 装接在各纵梁 5 之间。 预制拱 7 橫向重叠地分别 位于主桥段下的桥柱 3 之间。 桥头拱 8 纵向排列地分别位于引桥段 的各桥柱 3 之间的两恻。 并且其竖直面部封盖引桥段两侧， 两侧相 对的桥头拱 8 之间充填沙石土。 各纵梁 5 之间的 D3 P 处以混凝土充 填， 桥面扳铺设在纵梁 5 上， 并在纵梁 5 的拱弧顶点处以焊接将桥 面扳与纵梁 5 固接， 防滑层铺设在桥面扳上， 护栏和反光膜设备等 架设在桥面扳两侧。 本发明提出的立交桥施工方法为预先在非施工现场预制成架桥 组合件， 然后将预制的组件运至施工现场组建立交桥， 其特征是：
1 、 预制若干条基 2,该条基 2 如图 2 A、 2 B所示；
预制若干桥柱 3 , 该桥柱 3 如图 3 A , 3 B所示；
预制若干橫粱 4 , 该横梁 4 如图 4 A , 4 B所示；
预制若干纵梁 5 , 该纵梁 5 如图 5 A , 5 B所示，
预制若干纵梁连杆 6 ， 该纵粱连杆 6 如图 6 A , 6 B所示； 预制若干预制拱 7 , 该预制拱 7 如图 A、 7 C所示； 预制若干桥头挡 8 ， 该桥头裆 8 如图 8 A , 8 B所示；
2 、 在施工架桥的路面上挖掘若干洩坑,
3 、 将上述各预制件运至架桥施工现场， 然后，
(1 ) 将备条基 2 分别置于各浅坑内；
(2 ) 将桥柱 3 立于条基 2 的预埋钢板 2 ， 1 上， 以膨胀螵钉 和 / 或焊接将桥柱 3 与条基 2 固接；
(3 ) 将横梁 4 架设在桥柱 3 上， 其两端以螺栓和 / 或焊接使 其与桥柱 3 固接；
(4 ) 将纵梁 5 纵向侬序端头顶抵端头地架设在各橫梁 4 的两 端上， 并以螺栓将各纵梁 5 端头与备橫梁 4 的端头拧紧， 再以焊接 使之固定连接于橫梁 4 的端头上；
(5 ) 将各纵梁连杆 6 置于备纵梁 5 之间， 以螺钉穿过纵梁 5 的腹扳 5 , 3 上的孔 5 , 2 而拧入纵紧连杆 6 的两端的嫘母 6 , 1 中， 使纵梁连杆 6 置于纵梁 5 之间；
(6 ) 将预制拱 7 横向重叠地设于立桥段的各桥柱 3 之间；
(7 ) 将桥头档 8 纵向排列地置于引桥段的备桥柱 3 之间， 并 且在桥头档 8 之间的空间内充瑱沙石土；
4 、 在备纵粱 4 的相接处的 ω部内瑱充混凝土；
5 、 将桥面扳铺设在备纵梁 4 上并在拱形纵梁 4 的顶点处将它 们焊接在一起。
6 、 在桥面板上铺设防滑层并装设护栏及反光膜设备。 工业实用性
上述本发明提出的立交桥及其施工方法， 由于各部件均不是在 建桥施工现场制作， 不需另设施工场地， 只要在路面浅挖洩坑埋设 条基再以螺钉， 嫘栓固接和 / 或焊接手段即可组建立交桥， 所以不 仅組建快速， 方便， 而且可在交通流量大的城巿街道上架设， 不需 要折除邻近的建筑物， 不需要改换路面下的备种管线， 不需要深挖 土方打桥基， 所以是十分适合于城巿内建桥的。 此外， 采用连续的 拱形纵梁且组装时使纵梁产生预应力， 所以结构十分合理， 因此也 节省材料； 主桥段下具有预制拱， 引桥段下具有桥头档， 纵粱间具 有纵梁连杆， 所以该立交桥十分稳固耐用。

Claims

杈 利 要 求
1 、 一种快速组装的永久
汽车行人综合立交桥， 该立交桥具有引桥段和主桥段并包合桥柱， 横梁， 纵梁， 桥面构件， 护拦， 反光膜设备， 其特征是， 该立交桥 还具有：
条基， 该条基为呈直角六面体形的长条状混凝土预制件， 其中 埋设有若干个带钢筋的预埋钢板， 该钢板和与其所在的条基上具有 若干供穿设膨胀螺钉的孔； 条基上还具有若干吊钩； 预埋钢板与条 基顶面平齐， 条基埋设在路面上的浅坑中； 条基下表面两端分别具 有若干间隔开的纵向延伸的拱弧形筋条；
所述桥柱为断面呈工字形的两端分别固接有支承钢板的钢预制 件； 该支承钢板上具有若干为穿设嫘栓的孔； 桥柱可依据其所在处 的桥高而有不同的高度； 该桥柱立设于条基的预埋钢扳上， 并以膨 胀嫘钉和 / 或焊接使其与条基固接；
所述橫梁为断面呈工字形的钢预制件， 其两端的工字形的翼板 上分别具有若干为穿设螺栓用的孔； 橫粱跨设于横向相邻的两桥柱 上， 其两端与桥柱的支承钢板之间通过其上的孔以螺栓和 / 或焊接 固接；
所述纵梁为断面呈工字形的钢预制件， 并且沿工字形腹扳纵向 中心线弯成拱形， 其两端的工字形翼极上分别具有若干为穿设螺栓 的孔； 其工字形腹扳上具有若干为装设纵梁连杆的孔； 所述纵梁跨 设在纵向相邻的两横梁之间， 借助于其两端的孔与横梁上端的孔以 螺栓穿设而压紧固接和 / 或焊接；
纵梁连杆为管形预制件， 其两端分别固接有嫘母； 该纵梁连扞 通过纵梁腹扳上的孔用螺钉而装设在橫向相邻的两纵梁之间；
预制拱为框形钢筋混凝土预制件， 其高度和宽度分别与桥柱高 度和纵向相邻两桥柱的间距相适配， 若干预制拱横向重叠地设置在 主桥段的纵向相邻的两桥柱之间； 该预制换顶部内侧呈拱形；
桥头挡为呈 L形的钢筋混凝土预制件， 其底部两侧分别具有 C£J 陷和凸起， 并且若干桥头挡以纵向接靠， 相邻桥头档的 ω陷与凸起 相互楔入而排列在引桥段的纵向相邻两桥柱之间的两侧， 其竖直部 封盖桥柱间的空处； 其竖直面顶边倾斜， 倾斜度与引桥段倾斜度相 适应；
桥面结构为钢板， 其与拱形纵梁的拱起顶部焊接， 相接的纵粱 处以充瑱物瑱平。
2、 一种快迷组装的永久汽车行人立交桥的施工方法， 其特征 是， 该施工方法的步骤为：
①、 在非立交桥的组建现场处， 预制以下组件：
(1 ) 条基， 以钢筋混凝土预制件制作方法预制该条基， 条基 为呈直角六面体形的长条状， 预制时以预定间隔埋设若干带有钢筋 的预埋钢扳， 钢扳与条基顶面平齐， 钢板与其所在的条基上形成有 若干供穿设膨胀螺钌的孔， 条基下表面的两端分别一体地形成有间 隔开的若干条纵向延伸的筋条， 并且预埋有若干吊钩；
(2 ) 桥柱， 以钢扳焊接制成工字形的若干桥柱体， 并在桥柱 体两端分别焊接与桥柱体垂直的支承钢板， 该钢板上钻沿若干供螺 栓穿设的孔而形成桥柱， 备桥柱高度与其所在处桥高相适应；
(3 ) 横梁， 以钢板焊接制成工字形的若干橫梁， 其两端翼板 上分别钻设若干供螺栓穿设的孔；
(4 ) 纵梁， 预先截切上部为凸弧； 下部为凹弧的腹板， 弯曲 形成弯曲的分别与腹板凸弧、 ω弧相适应的翼扳， 将腹扳与翼极焊 接而形成沿纵向中心线弯曲的断面为工字形的若干拱形纵梁， 并在 两端的翼板上钻设供穿设螺栓的若干孔； 各纵梁跨度与相邻拱梁之 间距相适应；
(5 ) 纵梁连杆， 截切管件， 并在其两端分别焊接螺母而形成 纵梁连杆， 其长度与相邻纵梁之间距适应；
(6 ) 预制拱， 以钢筋混凝土预制若干框形预制拱， 其内侧顶 部为拱形， 并预埋若干吊钩； 其高度与宽度分别与主桥段相邻的桥 柱之间的空间的高度与宽度相适应；
(7 ) 桥头档， 以钢筋混凝土预制桥头挡， 其竖直面顶边倾斜 度与引桥段倾斜度相适应， 其高度与引桥段桥柱高相适应， 几个桥 头档的宽度与引桥段相邻两桥柱的间距一致， 并预埋设若干吊钩。
(8 ) 截切适当尺寸的桥面钢扳。
②、 将上述预制件运至架桥部位；
③、 将条基埋设在路面上的浅坑内；
④、 将桥柱依序竖立在条基的预埋钢板上， 并以膨胀螺钉装入 其上的孔中， 以膨胀螺钉和 / 或焊接将桥柱固定在条基上；
⑤、 将橫粱跨架在横向相邻的两桥柱上， 以嫘栓穿设在其上的 孔中， 用该嫘栓和 / 或焊接将横梁与桥柱固接；
⑥、 将拱形纵梁跨架在纵向相邻两橫梁上， 以螺栓穿设在其两 端的孔中、 拧紧该嫘栓使拱形纵梁略有变形而形成预应力， 以该螺 栓和 / 或焊接将纵梁和横梁固接；
⑦、 将纵梁连扞设于纵梁之间以螺钌穿过纵粱腹扳上的孔将纵 梁连杆装设在纵梁之间；
⑧、 将备拱形纵梁接靠处的 M陷部位用砂浆瑱平；
⑨、 将桥面钢扳焊接到拱形纵梁的拱起的顶部处；
⑩、 装设护栏和反光膜设备， 则完成立交桥的組建。
PCT/CN1996/000025 1996-04-10 1996-04-10 Ouvrage de franchissement a assemblage rapide WO1997038166A1 (fr)

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