WO2013044498A1 - 双波形钢腹板钢-混组合桥梁及其施工方法 - Google Patents

双波形钢腹板钢-混组合桥梁及其施工方法 Download PDF

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Publication number
WO2013044498A1
WO2013044498A1 PCT/CN2011/080433 CN2011080433W WO2013044498A1 WO 2013044498 A1 WO2013044498 A1 WO 2013044498A1 CN 2011080433 W CN2011080433 W CN 2011080433W WO 2013044498 A1 WO2013044498 A1 WO 2013044498A1
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WIPO (PCT)
Prior art keywords
steel
plate
double
concrete
web
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PCT/CN2011/080433
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English (en)
French (fr)
Inventor
李勇
陈宜言
朱宏平
刘念琴
李海
王先前
董桔灿
王远洋
Original Assignee
Li Yong
Chen Yiyan
Zhu Hongping
Liu Nianqin
Li Hai
Wang Xianqian
Dong Jucan
Wang Yuanyang
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Application filed by Li Yong, Chen Yiyan, Zhu Hongping, Liu Nianqin, Li Hai, Wang Xianqian, Dong Jucan, Wang Yuanyang filed Critical Li Yong
Priority to PCT/CN2011/080433 priority Critical patent/WO2013044498A1/zh
Publication of WO2013044498A1 publication Critical patent/WO2013044498A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00—Material constitution of bridges
    • E01D2101/20—Concrete, stone or stone-like material
    • E01D2101/24—Concrete
    • E01D2101/26—Concrete reinforced
    • E01D2101/268—Composite concrete-metal

Definitions

  • the present invention relates to a bridge and a construction method thereof, and more particularly to a corrugated steel web combined PC bridge and a construction method thereof. Background technique
  • corrugated steel webs have stronger shear and crack resistance than concrete webs, so more and more bridges use corrugated steel web bridges, at an earlier time.
  • corrugated steel web bridges single-wave steel webs are used.
  • some corrugated steel web bridges have adopted double-wave steel webs, such as the patent application file of Chinese Patent Application No. 200810032493.
  • a double corrugated web steel box girder is disclosed.
  • the web of the double corrugated web steel box girder is a double corrugated steel web, a double corrugated steel web with two layers of corrugated steel sheets and a single waveform with only one layer of corrugated steel sheets.
  • the double corrugated steel web Compared with the steel web, the double corrugated steel web has better stability and bending resistance, and in the case of the same thickness of the steel plate, the double corrugated steel web is more resistant to shear, bending and torsion than the single.
  • the corrugated steel web has an advantage and can save a lot of steel. Therefore, the double-wave steel web bridge is one of the most competitive bridges at present.
  • the existing double-wave steel web bridges still find the following shortcomings in construction and use:
  • the two-layer corrugated steel plate has a hollow two-layer corrugated steel plate.
  • the two-layer corrugated steel plate is separated from each other and does not form an integral part. This is not only unfavorable for local stress, but also seriously affects the bending resistance and resistance of the double corrugated steel web. Twist stiffness, and due to insufficient rigidity during construction, its own stability is poor, and more brackets are needed to maintain the stability of the double-wave steel web, which greatly restricts the competition of double-wave steel web bridges in urban bridge construction. Force, limited use range, the current curved bridge and large span bridge are less using double corrugated steel web Bridge.
  • the object of the present invention is to provide a corrugated steel web combination PC bridge and a construction method thereof.
  • a corrugated steel web combined PC bridge comprising a concrete roof, a concrete floor and two double-wave steel webs symmetrically distributed between the concrete roof and the concrete floor, the double-wave steel web comprises two layers of corrugated steel sheets,
  • the bottom surface of the concrete top plate is provided with an upper pressing type steel plate, and the bottom surface of the concrete bottom plate is mounted with a lower pressing type steel plate;
  • the double corrugated steel web further comprises a plurality of connecting members connected between the two layers of corrugated steel plates, and two layers of corrugated steel plates
  • the concrete is filled between, and the upper end of the double corrugated steel web is connected with a steel top plate, the steel top plate is connected with the upper pressing type steel plate, the lower end of the double corrugated steel web is connected with a steel bottom plate, and the steel bottom plate is connected with the lower pressing type steel plate. fixed.
  • the upper end portion of the steel tube concrete scissor support is connected with the steel top plate, and the lower end portion is connected with the steel bottom plate.
  • the steel tube concrete scissor supports the bracket to prevent the double corrugated steel belly
  • the plate is unstable and acts as a baffle after the bridge, which enhances the torsional stiffness of the bridge.
  • the corrugated steel sheet is provided with a plurality of shear studs on the inner wall for reinforcing the fixing strength of the corrugated steel sheet and the concrete.
  • the steel top plate and the upper pressing type steel plate are fixed by a welding nail, and the welding nail is worn.
  • the steel plate is welded to the steel top plate through the upper pressing type steel plate, and the steel plate and the lower pressing type steel plate are connected and fixed by welding nails, and the welding nail penetrates the lower pressing type steel plate and the steel bottom plate for welding.
  • the connecting members are arranged at a wavelength interval in the double-wave steel web, and only one of each wavelength is provided, thereby ensuring that the connecting member can connect the two-layer corrugated steel sheets into a whole without being connected to the whole. Too many connectors, achieving a balance of effects and cost.
  • a construction method of a corrugated steel web combination PC bridge comprising the following steps:
  • the steel bottom plate is installed, the lower end of the double corrugated steel web is connected with the steel bottom plate, the concrete is filled between the two corrugated steel plates of the double corrugated steel web, and then the steel top plate is connected to the upper end of the double corrugated steel web; c laying down the pressed steel plate on the steel bottom plate, laying the pressed steel plate on the steel top plate;
  • the steps further include the steps of: a. installing a concrete-filled steel tube scissors support, connecting the lower end portion of the steel tube concrete scissor support to the steel bottom plate, and the upper end portion of the concrete-filled steel tube scissors support
  • the steel top plate is connected, so that the steel tube concrete scaffold can not only act as a support to prevent the double corrugated steel web from being unstable, but also acts as a baffle after the bridge, further enhancing the bending and torsional rigidity of the bridge.
  • the step c further includes erecting a support frame, connecting the lower end of the support frame to the lower pressing type steel plate, and connecting the upper end of the support frame to the cantilever arm of the upper pressing type steel plate located outside the steel top plate, so that The stability of the upper pressed steel plate is further ensured during construction.
  • the utility model relates to a corrugated steel web combined PC bridge and a construction method thereof, which have the beneficial effects that: two corrugated steel plates of a double corrugated steel web are connected by a connecting piece, and the two corrugated steel plates are also filled with concrete. Therefore, the double corrugated steel web is integrated, and the bending and torsional rigidity are improved by more than 4 times compared with the existing non-integrated double corrugated steel web, and the local stress of the double corrugated steel web is improved, and the construction is improved.
  • the invention adopts the upper-pressure steel plate and the lower pressure
  • the steel plate saves the formwork bracket of the concrete roof and concrete floor during construction, realizes the construction without template and less bracket, which not only reduces the cost, but also shortens the construction period, and the profiled steel plate also acts as a distribution steel bar to prevent concrete. Cracks appear on the surface of the roof and concrete floor, which are beautiful in appearance and are particularly suitable for urban bridges.
  • the steel of the present invention Concrete during construction play scissors bracket for preventing double corrugated steel web instability, also play the role of the separator in a bridge, and further enhance the bending and torsional stiffness of this bridge.
  • Figure 1 is a cross-sectional view showing a corrugated steel web combination PC bridge of the present invention
  • Figure 2 is a structural view showing a double-wave steel web in an embodiment of the present invention.
  • Figure 3 is a schematic view of the construction method of the present invention, illustrating the construction of a double corrugated steel web, a steel roof, and a steel floor;
  • Figure 4 is a schematic view of the construction method of the present invention, illustrating the construction of the steel tube concrete scissor support
  • Figure 5 is a schematic view of the construction method of the present invention, showing the construction of the upper and lower pressure type steel plates;
  • Figure 6 is a schematic view of the construction method of the present invention, illustrating the construction of the welding nail
  • Figure 7 is a schematic view of the construction method of the present invention, illustrating the construction of a concrete floor and a concrete roof. Description of the reference signs: 1. Concrete roof 2, concrete floor
  • FIG. 1 and FIG. 2 shows a specific structure of a corrugated steel web combined PC bridge of the present invention, including a concrete roof panel 1, a concrete floor panel 2, and a concrete roof panel 1 and a concrete floor panel 2 Symmetrical distribution of two double-wave steel webs 3, which may be erect or diagonal, wherein:
  • An upper pressing type steel plate 4 is attached to the bottom surface of the concrete top plate 1, and a lower pressing type steel plate 5 is attached to the bottom surface of the concrete bottom plate 2.
  • the double corrugated steel web 3 includes two corrugated steel sheets 31 and a plurality of connecting members 32 connected between the two corrugated steel sheets 31.
  • the connecting member 32 is connected between the two corrugated steel sheets 31 to make the two corrugated steel sheets 31 together.
  • the two-layer corrugated steel plate 31 is filled with concrete, which strengthens the integrity of the double-wave steel web 3, and further improves the shear resistance of the double-wave steel web 3 , bending resistance, torsion resistance
  • the inner wall of the corrugated steel sheet 31 is provided with a plurality of shear studs 31 1 for reinforcing the fixing strength of the corrugated steel sheet 31 and the concrete, and the connecting member 32 is pressed in the double corrugated steel web 3
  • the wavelength interval is set, and only one of each wavelength is set, which ensures that the connecting member 32 can connect the two-layer corrugated steel sheets 31 as a whole without making the number of the connecting members 32 excessive, thereby achieving the
  • the connecting member 32 can be a steel plate, a steel pipe or other rigid metal parts; the upper end of the double corrugated steel web 3 is connected with a steel top plate 6, and the steel top plate 6 and the upper pressing type steel plate 4 are connected and fixed by a welding nail 7.
  • the welding stud 7 is welded to the steel top plate 6 through the upper pressing type steel plate 4, and the steel bottom plate 8 is connected to the lower end of the double corrugated steel web 3, and the steel bottom plate 8 and the lower pressing type steel plate 5 are also connected and fixed by the welding nail 7, the welding nail 7
  • the penetrating lower pressing type steel plate 5 is welded to the steel bottom plate 8.
  • the connection and fixing manner of the steel top plate 6 and the upper pressing type steel plate 4, the steel bottom plate 8 and the lower pressing type steel plate 5 are not limited to the welding method of the welding nail 7, and may also be Use other connection fixing methods.
  • the utility model further comprises a concrete-filled steel tube scissors support 9 which is formed by two steel pipes obliquely fixed and arranged in a scissor shape, and the two obliquely-shaped steel pipes are filled with concrete, and the concrete-filled steel tube scissors support 9 The upper end portion is connected with the steel top plate 6, and the lower end portion of the steel tube concrete shearing support 9 is connected with the steel bottom plate 8.
  • the concrete-filled steel tube scissors 9 serves as a bracket during construction to prevent the above-mentioned double-wave steel web 3 from being unstable, after the bridge is completed.
  • the concrete-filled steel tube shears 9 also function as a partition to further enhance the bending and torsional rigidity of the bridge.
  • a construction method of the above-mentioned corrugated steel web combination PC bridge comprises the following steps:
  • the steel bottom plate 8 is installed, the lower end of the double corrugated steel web 3 is connected with the steel bottom plate 8, and the two corrugated steel sheets 31 of the double corrugated steel web 3 are filled with concrete, and then the steel top plate 6 is placed. Connected to the upper end of the double corrugated steel web 3;
  • the steel tube concrete scissor support 9 is installed, the upper end portion of the steel tube concrete scissor 9 is connected with the steel top plate 6, and the lower end portion is connected with the steel bottom plate 8, so that it can serve as a bracket to prevent the double corrugated steel web 3 It is unstable and acts as a partition after the bridge, which further enhances the bending and torsional rigidity of the bridge.
  • the lower profiled steel plate 5 is laid on the steel floor plate 8, and laid on the steel roof plate 6.
  • the profiled steel plate 4 is erected with a support frame (not shown), and the upper end of the support frame is connected to the cantilever 41 of the upper profiled steel plate 4 on the outer side of the steel top plate 6, and the lower end of the support frame is connected to the lower profiled steel plate 5, In this way, the stability of the upper pressed steel plate 4 is further ensured during construction; d.
  • the lower pressing type steel plate 5 is welded to the steel bottom plate 8 by the welding nail 7, and the upper pressing type steel plate 4 and the steel top plate 6 are welded by the welding nail 7, so that the steel bottom plate 8 and the lower pressing type steel plate are welded. 5 is fixedly connected, and the steel top plate 6 is fixedly connected with the upper pressing type steel plate 4;
  • the concrete top plate 1 is poured on the upper pressing type steel plate 4.
  • the support frame can be removed before the step e is performed, and if the cantilever 41 is large, the upper profiled steel plate 4 is stabilized. If there is a greater influence, the support frame does not need to be disassembled, but the cantilever 41 is always supported as a diagonal support.
  • the design of the present invention is focused on: First, the two-layer corrugated steel sheets 31 of the double corrugated steel webs 3 are joined by a joint member 32, and the two corrugated steel sheets 31 are also filled with concrete, thereby making the double corrugated steel webs 3 integral.
  • the bending and torsional rigidity are improved by more than 4 times compared with the existing non-integrated double-wave steel web, and the local stress of the double-wave steel web 3 is improved, and the stability during construction is good, and the bracket is not required.
  • the present invention adopts the upper pressing type steel plate 4 and the lower pressing type steel plate 5, during construction.
  • the formwork brackets of the concrete roof 1 and the concrete floor 2 are omitted, and the construction without the formwork and the less brackets is realized, which not only reduces the cost, but also shortens the construction period, and the profiled steel plate also functions as a distributed steel bar to prevent the concrete roof 1 and concrete.
  • the surface of the bottom plate 2 is cracked, and its appearance is beautiful and elegant, and is particularly suitable for use in urban bridges; further, the concrete-filled steel tube scissors of the present invention 9 play a role in the construction of the stent, to prevent instability double corrugated steel webs 3, also play the role of the separator in a bridge, further enhances the flexural, torsional stiffness of this bridge.

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  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

提供了一种波形钢腹板组合PC桥梁及其施工方法，所述桥梁包括混凝土顶板（1）、混凝土底板（2）及两个双波形钢腹板（3），混凝土顶、底板的底面分别安装有上、下压型钢板（4，5）；双波形钢腹板包括两层波形钢板（31）及多个连接件（32），两层波形钢板之间填充有混凝土，连接件连接于两层波形钢板之间而使两波形钢板共同工作，达到大幅度提高抗弯及抗扭刚度的目的，双波形钢腹板上端连接有钢顶板（6），钢顶板与上压型钢板（4）连接，下端连接有钢底板（8），钢底板与下压型钢板（5）连接。所述双波形钢腹板为整体，抗弯、抗扭刚度提高了4倍以上，施工时稳定性好，扩大了桥梁的使用范围；采用压型钢板，施工时省去了混凝土顶板和底板的模板支架，实现了无模板和少支架施工，降低了成本，缩短了工期。

Description

波形钢腹板组合 PC桥梁及其施工方法
技术领域 本发明涉及一种桥梁及其施工方法， 尤其涉及一种波形钢腹板组合 PC桥梁 及其施工方法。 背景技术
随着桥梁建筑技术的发展， 人们发现波形钢腹板具有比混凝土腹板更强的 抗剪、 抗裂能力， 因此越来越多的桥采用了波形钢腹板桥梁， 在较早的时候， 人们在建造波形钢腹板桥梁时都是采用单波形钢腹板， 到了现阶段， 已经有一 部分波形钢腹板桥梁采用双波形钢腹板， 如中国专利申请号为 200810032493. 1 的专利申请文件公开了一种双波纹腹板钢箱梁， 该双波纹腹板钢箱梁的腹板就 是双波形钢腹板， 具有两层波形钢板的双波形钢腹板与只有一层波形钢板的单 波形钢腹板相比， 双波形钢腹板具有更好的稳定性和抗弯能力， 而且在钢板厚 度相同的情况下， 双波形钢腹板在抗剪、 抗弯、 抗扭等方面都比单波形钢腹板 更具优势， 能大幅度节省用钢量。 因此， 双波形钢腹板桥梁是目前最具竟争力 的桥梁之一， 然而， 现有的双波形钢腹板桥梁在施工和使用中发现仍然存在以 下不足：
1.双波形钢腹板的两层波形钢板之间是中空的， 两层波形钢板相互分离， 没有形成整体， 这不仅不利于局部受力， 严重影响了双波形钢腹板的抗弯、 抗 扭刚度， 而且在施工时由于刚度不够， 自身稳定性较差， 需要较多的支架来维 持双波形钢腹板的稳定， 这大大制约了双波形钢腹板桥梁在城市桥梁建设中的 竟争力， 限制了使用范围， 目前的曲线桥和大跨度桥都较少采用双波形钢腹板 桥梁。
2.现有的双波形钢腹板桥梁其混凝土顶板和混凝土底板在施工时需要安装 模板支架， 施工完成后又需要将这些模板支架拆下来， 这不但加大了成本支出， 还延长了工期。 发明内容
针对现有技术的不足， 本发明的目的旨在于提供一种波形钢腹板组合 PC桥 梁及其施工方法。
为实现上述目的本发明采用如下技术方案：
一种波形钢腹板组合 PC桥梁， 包括混凝土顶板、 混凝土底板及位于混凝土 顶板和混凝土底板之间且呈对称分布的两个双波形钢腹板， 双波形钢腹板包括 两层波形钢板， 所述混凝土顶板的底面安装有上压型钢板， 混凝土底板的底面 安装有下压型钢板； 所述双波形钢腹板还包括多个连接于两层波形钢板之间的 连接件， 两层波形钢板之间填充有混凝土， 以及， 双波形钢腹板的上端连接有 钢顶板， 钢顶板与上压型钢板连接固定， 双波形钢腹板的下端连接有钢底板， 钢底板与下压型钢板连接固定。
作为一种优选方案， 进一步包括钢管混凝土剪刀撑， 钢管混凝土剪刀撑的 上端部与钢顶板连接， 下端部与钢底板连接， 施工时， 该钢管混凝土剪刀撑起 到支架作用， 防止双波形钢腹板失稳， 成桥后还起到隔板作用， 增强了本桥梁 的抗扭刚度。
作为一种优选方案， 所述波形钢板的内壁上设置有多个抗剪焊釘， 用于加 强波形钢板与混凝土的固定强度。
作为一种优选方案， 所述钢顶板与上压型钢板通过焊釘连接固定， 焊釘穿 透上压型钢板与钢顶板焊接， 所述钢底板与下压型钢板通过焊釘连接固定， 焊 釘穿透下压型钢板与钢底板焊接。
作为一种优选方案， 所述连接件在双波形钢腹板中按波长间隔设置， 且每 个波长中只设置一个， 这样既保证了连接件能将两层波形钢板连接成整体， 又 不至于使连接件的数量过多， 实现了效果和成本的平衡。
一种波形钢腹板组合 PC桥梁的施工方法， 包括如下步骤：
a.安装好钢底板， 将双波形钢腹板的下端与钢底板连接， 向双波形钢腹板 的两层波形钢板之间填充混凝土， 然后将钢顶板连接于双波形钢腹板的上端； c在钢底板上铺设下压型钢板， 在钢顶板上铺设上压型钢板；
d.用焊釘穿透下压型钢板与钢底板焊接， 用焊釘穿透上压型钢板与钢顶板 焊接；
e.在下压型钢板上浇筑混凝土底板；
f.在上压型钢板上浇筑混凝土顶板。
作为一种优选方案， 在所述步骤 a和 c之间还进一步包括步骤： b.安装钢 管混凝土剪刀撑， 将钢管混凝土剪刀撑的下端部与钢底板连接， 将钢管混凝土 剪刀撑的上端部与钢顶板连接， 这样钢管混凝土剪刀撑既能起支架作用， 防止 双波形钢腹板失稳， 成桥后还起到隔板作用， 进一步增强本桥梁的抗弯、 抗扭 刚度。
作为一种优选方案， 所述步骤 c 中还包括架设支撑架， 将支撑架的下端与 下压型钢板连接， 将支撑架的上端与上压型钢板的位于钢顶板外侧的悬臂连接， 这样在施工时进一步保证了上压型钢板的稳定。
作为一种优选方案， 如果悬臂较小， 不影响上压型钢板的稳定， 在进行步 骤 e之前将所述支撑架拆卸。 本发明所阐述的一种波形钢腹板组合 PC桥梁及其施工方法， 其有益效果在 于： 双波形钢腹板的两层波形钢板通过连接件连接， 并且两层波形钢板之间还 填充有混凝土， 从而使双波形钢腹板成为整体， 抗弯、 抗扭刚度与现有不成整 体的双波形钢腹板相比提高了 4倍以上， 而且改善了双波形钢腹板的局部受力， 施工时稳定性好， 不需要使用支架来维持双波形钢腹板的稳定， 可适用于曲线 桥和大跨度桥， 扩大了本桥梁的使用范围； 以及， 本发明通过采用上压型钢板 和下压型钢板， 在施工时省去了混凝土顶板和混凝土底板的模板支架， 实现了 无模板和少支架施工， 不但降低了成本， 缩短了工期， 而且压型钢板还起到分 布钢筋的作用， 防止混凝土顶板和混凝土底板的表面出现裂纹， 其外形美观大 方， 特别适合用于城市桥梁； 此外， 本发明的钢管混凝土剪刀撑在施工时起到 支架作用， 防止双波形钢腹板失稳， 成桥后还起到隔板作用， 进一步增强了本 桥梁的抗弯、 抗扭刚度。 附图说明
图 1是本发明一种波形钢腹板组合 PC桥梁的横截面示图；
图 2是本发明实施例中双波形钢腹板的结构示图；
图 3是本发明施工方法的示意图， 示意双波形钢腹板、 钢顶板、 钢底板的 施工；
图 4是本发明施工方法的示意图， 示意钢管混凝土剪刀撑的施工； 图 5是本发明施工方法的示意图， 示意上、 下压型钢板的施工；
图 6是本发明施工方法的示意图， 示意焊釘的施工；
图 7是本发明施工方法的示意图， 示意混凝土底板和混凝土顶板的施工。 附图标记说明： 1、 混凝土顶板 2、 混凝土底板
3、 双波形钢腹板 31、 波形钢板
31 1、 抗剪焊釘 32、 连接件
4、 上压型钢板 41、 悬臂
5、 下压型钢板 6、 钢顶板
7、 焊釘 8、 钢底板
9、 钢管混凝土剪刀撑
具体实施方式
下面结合附图与具体实施例来对本发明作进一步描述。
请参照图 1和图 2所示， 其显示出了本发明一种波形钢腹板组合 PC桥梁的 具体结构， 包括混凝土顶板 1、 混凝土底板 2以及位于混凝土顶板 1和混凝土底 板 2之间且呈对称分布的两个双波形钢腹板 3 , 该双波形钢腹板 3可为竖立， 也 可为斜立， 其中：
所述混凝土顶板 1的底面安装有上压型钢板 4 ,混凝土底板 2的底面安装有 下压型钢板 5。
所述双波形钢腹板 3 包括两层波形钢板 31及多个连接于两层波形钢板 31 之间的连接件 32 ,连接件 32连接于两层波形钢板 31之间而使两波形钢板 31共 同工作， 达到大幅度提高抗弯及抗扭刚度的目的， 两层波形钢板 31之间填充有 混凝土， 加强了双波形钢腹板 3的整体性， 进一步提高了双波形钢腹板 3的抗 剪、 抗弯、 抗扭能力， 波形钢板 31的内壁设置有多个抗剪焊釘 31 1 , 用于加强 波形钢板 31与混凝土的固定强度， 并且， 连接件 32在双波形钢腹板 3中按波 长间隔设置， 每个波长中只设置一个， 这样既保证了连接件 32能将两层波形钢 板 31连接成整体， 又不至于使连接件 32的数量过多， 实现了效果和成本的平 衡， 连接件 32可为钢板、 钢管或其它刚性较强的金属件； 该双波形钢腹板 3的 上端连接有钢顶板 6 , 钢顶板 6与上压型钢板 4通过焊釘 7连接固定， 焊釘 7穿 透上压型钢板 4与钢顶板 6焊接， 双波形钢腹板 3的下端连接有钢底板 8 , 钢底 板 8与下压型钢板 5同样通过焊釘 7连接固定， 焊釘 7穿透下压型钢板 5与钢 底板 8焊接， 当然， 钢顶板 6与上压型钢板 4、 钢底板 8与下压型钢板 5的连接 固定方式并不限于焊釘 7焊接的方式， 也可采用其它的连接固定方式。
作为一种较佳选择， 进一步包括钢管混凝土剪刀撑 9 , 该钢管混凝土剪刀撑 9由两钢管斜立交叉固定形成， 呈剪刀状， 两斜立的钢管中填充有混凝土， 钢管 混凝土剪刀撑 9的上端部与钢顶板 6连接， 钢管混凝土剪刀撑 9的下端部与钢 底板 8连接， 施工时该钢管混凝土剪刀撑 9起到支架作用， 防止上述的双波形 钢腹板 3失稳， 成桥后该钢管混凝土剪刀撑 9还起到隔板作用， 进一步增强了 本桥梁的抗弯、 抗扭刚度。
一种上述波形钢腹板组合 PC桥梁的施工方法， 包括如下步骤：
a.如图 3 , 安装好钢底板 8 , 将双波形钢腹板 3的下端与钢底板 8连接， 向 双波形钢腹板 3的两层波形钢板 31之间填充混凝土， 然后将钢顶板 6连接于双 波形钢腹板 3的上端；
b.如图 4 , 安装钢管混凝土剪刀撑 9 , 将钢管混凝土剪刀撑 9的上端部与钢 顶板 6连接， 下端部与钢底板 8连接， 这样既能起支架作用， 防止双波形钢腹 板 3失稳， 成桥后还起到隔板作用， 进一步增强了本桥梁的抗弯、 抗扭刚度； c如图 5 , 在钢底板 8上铺设下压型钢板 5 , 在钢顶板 6上铺设上压型钢板 4 , 并架设支撑架（未标出）， 将支撑架的上端与上压型钢板 4 的位于钢顶板 6 外侧的悬臂 41连接， 将支撑架的下端与下压型钢板 5连接， 这样在施工时进一 步保证了上压型钢板 4的稳定； d.如图 6 , 用焊釘 7穿透下压型钢板 5与钢底板 8焊接， 用焊釘 7穿透上压 型钢板 4与钢顶板 6焊接，从而使钢底板 8与下压型钢板 5连接固定， 钢顶板 6 与上压型钢板 4连接固定；
e.如图 7 , 在下压型钢板 5上浇筑混凝土底板 2;
f.如图 7 , 在上压型钢板 4上浇筑混凝土顶板 1。
需指出的是， 如果悬臂 41较小， 不影响其上压型钢板 4的稳定， 在进行步 骤 e之前可将所述支撑架拆卸， 而如果悬臂 41较大， 对上压型钢板 4的稳定具 有较大的影响， 则支撑架不需拆卸， 而是作为斜撑一直支撑悬臂 41。
本发明的设计重点在于： 首先， 双波形钢腹板 3的两层波形钢板 31通过连 接件 32连接， 并且两层波形钢板 31之间还填充有混凝土， 从而使双波形钢腹 板 3 成为整体， 抗弯、 抗扭刚度与现有不成整体的双波形钢腹板相比提高了 4 倍以上， 而且改善了双波形钢腹板 3 的局部受力， 施工时稳定性好， 不需要使 用支架来维持双波形钢腹板 3 的稳定， 可适用于曲线桥和大跨度桥， 扩大了本 桥梁的使用范围； 其次， 本发明通过采用上压型钢板 4和下压型钢板 5 , 在施工 时省去了混凝土顶板 1和混凝土底板 2的模板支架， 实现了无模板和少支架施 工， 不但降低了成本， 缩短了工期， 而且压型钢板还起到分布钢筋的作用， 防 止混凝土顶板 1和混凝土底板 2的表面出现裂纹， 其外形美观大方， 特别适合 用于城市桥梁； 此外， 本发明的钢管混凝土剪刀撑 9 在施工时起到支架作用， 防止双波形钢腹板 3 失稳， 成桥后还起到隔板作用， 进一步增强了本桥梁的抗 弯、 抗扭刚度。
以上所述， 仅是本发明较佳实施例而已， 并非对本发明的技术范围作任何 变化与修饰， 均仍属于本发明技术方案的范围内。

Claims

权 利 要 求 书
1.一种双波形钢腹板钢-混组合桥梁， 包括混凝土顶板、 混凝土底板及位于 混凝土顶板和混凝土底板之间且呈对称分布的两个双波形钢腹板， 双波形钢腹 板包括两层波形钢板， 其特征在于： 所述混凝土顶板的底面安装有上压型钢板， 混凝土底板的底面安装有下压型钢板； 所述双波形钢腹板还包括多个连接于两 层波形钢板之间的连接件， 两层波形钢板之间填充有混凝土， 以及， 双波形钢 腹板的上端连接有钢顶板， 钢顶板与上压型钢板连接固定， 双波形钢腹板的下 端连接有钢底板， 钢底板与下压型钢板连接固定。
2. '根据权利要求 1所迷的一种双波形钢腹板钢 -混組合桥梁， 其特征在于： 进一步包括钢管混凝土剪刀撑， 钢管混凝土剪刀撑的上端部与钢顶板连接， 下 端部与钢底板连接。
3.根据权利要求 1所述的一种双波形钢腹板钢 -混组合桥梁， 其特征在于： 所述波形钢板的内壁上设置有多个抗剪焊钉。
4.根据权利要求 1所述的一种双波形钢腹板钢-混組合桥梁， 其特征在于： 所述钢顶板与上压型钢板通过焊钉连接固定， 焊钉穿透上压型钢板与钢顶板焊 接， 所述钢底板与下压型钢板通过焊钉连接固定， 焊钉穿透下压型钢板与钢底 板悍接。
5.根据权利要求 1所述的一种双波形钢腹板钢 -混组合桥梁， 其特征在于： 所述连接件在双波形钢腹板中按波长间隔设置， 且每个波长中只设置一个。
6.一种如权利要求 1所述的双波形钢腹板钢-混组合桥梁的施工方法， 其特 征在于， 包括如下步骤：
a.安装好钢底板， 将双波形钢腹板的下端与钢底板连接， 向双波形钢腹板 的两层波形钢板之间填充混凝土， 然后将钢顶板连接于双波形钢腹板的上端； c在钢底板上铺设下压型钢板， 在钢顶板上铺设上压型钢板； d.用焊钉穿透下压型钢板与钢底板； t早接， 用焊钉穿透上压型钢板与钢顶板 焊接；
e.在下压型钢板上浇筑混凝土底板；
f .在上压型钢板上浇筑混凝土顶板。
7.根据权利要求 6所述的一种双波形钢腹板钢 -混组合桥梁的施工方法， 其 特征在于，在所述步骤 a和 c之间还进一步包括步骤: b.安装钢管混凝土剪刀撑， 将钢管混凝土剪刀撑的下端部与钢底板连接， 将钢管混凝土剪刀撑的上端部与 钢顶^ ί连接。
8.根据权利要求 6所述的一种双波形钢腹板钢 -混组合桥梁的施工方法， 其 特征在于， 所述步骤 c中还包括架设支撑架， 将支撑架的下端与下压型钢板连 接， 将支撑架的上端与上压型钢板的位于钢顶板外侧的悬臂连接。
9.根据权利要求 8所述的一种双波形钢腹板钢 -混组合桥梁的施工方法， 其 特征在于， 在进行步骤 e之前将所述支撑架拆卸。
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