CN101158143A - Double Deck Composite Truss Bridge - Google Patents

Double Deck Composite Truss Bridge Download PDF

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CN101158143A
CN101158143A CNA2007101779728A CN200710177972A CN101158143A CN 101158143 A CN101158143 A CN 101158143A CN A2007101779728 A CNA2007101779728 A CN A2007101779728A CN 200710177972 A CN200710177972 A CN 200710177972A CN 101158143 A CN101158143 A CN 101158143A
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deck
bridge
concrete
double
composite truss
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CN100507151C (en
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聂建国
樊健生
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Tsinghua University
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Abstract

双层桥面组合桁梁桥，涉及一种新型桥梁结构。所述的双层桥面组合桁梁桥，由上层混凝土桥面板、钢结构腹杆和下层混凝土桥面板组成。上、下层混凝土桥面板既作为承受车辆荷载的桥面板板使用，同时作为桁梁的上、下弦部件参与结构的整体受力。钢结构腹杆由斜腹杆和竖腹杆组成，将上、下层混凝土桥面板连成整体，用于抵抗桁梁桥的剪力。处于受拉区的上层混凝土桥面板和下层混凝土桥面板中应配有纵向受力钢筋或型钢。本发明相对于传统的单层桥面组合梁桥，通行能力更强，行车舒适度高；相对于钢桁梁桥，利用混凝土桥面板作为受压弦杆，可大大减少用钢量，同时具有噪音低、易于维护、耐久性好等优点。

Figure 200710177972

The utility model relates to a double deck composite truss bridge, which relates to a novel bridge structure. The double-deck composite truss bridge consists of an upper concrete deck, a steel structure web and a lower concrete deck. The upper and lower concrete bridge decks are not only used as bridge decks to bear the vehicle load, but also as the upper and lower chord parts of the truss girders to participate in the overall force of the structure. The steel structure webs are composed of diagonal webs and vertical webs, which connect the upper and lower concrete decks into a whole, and are used to resist the shear force of the truss bridge. The upper concrete bridge deck and the lower concrete bridge deck in the tension zone should be equipped with longitudinal reinforcement or section steel. Compared with the traditional single-deck composite girder bridge, the present invention has stronger traffic capacity and higher driving comfort; compared with the steel truss girder bridge, the concrete bridge deck is used as the compression chord, which can greatly reduce the steel consumption and has the advantages of Low noise, easy maintenance, good durability and so on.

Figure 200710177972

Description

双层桥面组合桁梁桥 Double Deck Composite Truss Bridge

技术领域technical field

本发明涉及一种新型桥梁结构，属于桥梁工程领域。The invention relates to a novel bridge structure, which belongs to the field of bridge engineering.

背景技术Background technique

传统的钢-混凝土组合桥梁均采用单层桥面，即由位于上部作为桥面使用的混凝土板和位于下部的钢板梁或钢桁梁组成。对于按连续梁设计的组合梁，中间支座区域钢板梁或钢桁梁处于受压状态，不利于发挥钢材的承载能力。再有，随着城市交通量的增长及土地资源的日趋紧张，当车道数较多时采用单层桥面已不能满足交通发展的需要。因此，研究设计一种通行能力大、受力合理，且在经济性和施工性能上均具有一定优势的新型桥梁具有十分重要的意义。Traditional steel-concrete composite bridges use a single-layer deck, which consists of a concrete slab on the upper part used as a bridge deck and a steel plate girder or steel truss girder on the lower part. For composite beams designed as continuous beams, the steel plate girder or steel truss girder in the middle support area is in a state of compression, which is not conducive to exerting the bearing capacity of the steel. Furthermore, with the increase of urban traffic volume and the increasingly tight land resources, the use of single-layer bridge decks can no longer meet the needs of traffic development when there are many lanes. Therefore, it is of great significance to study and design a new type of bridge with large traffic capacity, reasonable stress, and certain advantages in economy and construction performance.

发明内容Contents of the invention

本发明的目的在于提供一种通行能力大、受力合理、施工方便的双层桥面组合桁梁桥。The object of the present invention is to provide a double deck composite truss bridge with large traffic capacity, reasonable stress and convenient construction.

本发明的技术方案如下：Technical scheme of the present invention is as follows:

一种双层桥面组合桁梁桥，其特征在于：该组合桁梁桥含有上层混凝土桥面板1、下层混凝土桥面板2和设置在上、下层混凝土桥面板之间的钢结构腹杆，并通过上弦节点板3、下弦节点板4和抗剪连接件7将上、下层混凝土桥面板连成整体，所述的钢结构腹杆由竖腹杆5和斜腹杆6组成。A double-deck composite truss bridge is characterized in that: the composite truss bridge contains an upper concrete deck 1, a lower concrete deck 2 and a steel structure web member arranged between the upper and lower concrete decks, and The upper and lower concrete bridge decks are connected as a whole through the upper chord gusset plate 3 , the lower chord gusset plate 4 and the shear connector 7 , and the steel structure web members are composed of vertical web members 5 and oblique web members 6 .

本发明所述的上层混凝土桥面板1和下层混凝土桥面板2采用预制板、叠合板或现浇板结构。处于受拉区的上层混凝土桥面板和下层混凝土桥面板中应配有纵向受力钢筋或型钢；另外上层混凝土桥面板1和下层混凝土桥面板2应根据需要施加预应力以防止混凝土开裂。The upper concrete bridge deck 1 and the lower concrete bridge deck 2 of the present invention adopt prefabricated slab, laminated slab or cast-in-place slab structure. The upper concrete bridge deck and the lower concrete bridge deck in the tension zone should be equipped with longitudinal reinforcement or section steel; in addition, the upper concrete bridge deck 1 and the lower concrete bridge deck 2 should be prestressed as needed to prevent concrete cracking.

本发明的技术特征还在于：所述下弦节点板4连接于下层混凝土桥面板2的上方，或连接于下层混凝土桥面板2的下方。The technical feature of the present invention is also that: the lower chord gusset plate 4 is connected above the lower concrete bridge deck 2 or connected below the lower concrete bridge deck 2 .

本发明所述的竖腹杆5和斜腹杆6可以采用圆形或矩形截面，所述竖腹杆和斜腹杆内灌注混凝土。The vertical web bar 5 and the diagonal web bar 6 according to the present invention can adopt a circular or rectangular section, and concrete is poured into the vertical web bar and the diagonal web bar.

本发明相对于现有技术具有以下优点：①相对于传统的单层桥面组合梁桥，双层桥面组合桁梁桥的通行能力更强，且上下层桥面的视线均较为开阔，行车舒适度高；②相对于钢桁梁桥，组合桁梁桥利用混凝土桥面板作为受压弦杆，可大大减少用钢量，同时具有噪音低、易于维护、耐久性好等优点。③采用上下节点板和抗剪连接件将钢腹杆与混凝土桥面板相连接，具有施工方便、构造简单等特点。Compared with the prior art, the present invention has the following advantages: ①Compared with the traditional single-deck composite girder bridge, the double-deck composite truss bridge has a stronger traffic capacity, and the sightlines of the upper and lower decks are relatively open, making it easier for driving High comfort; ② Compared with steel truss bridges, composite truss bridges use concrete decks as compression chords, which can greatly reduce the amount of steel used, and have the advantages of low noise, easy maintenance, and good durability. ③The upper and lower gusset plates and shear connectors are used to connect the steel web members to the concrete bridge deck, which has the characteristics of convenient construction and simple structure.

附图说明Description of drawings

图1为本发明的立体示意图。Fig. 1 is a schematic perspective view of the present invention.

图2为本发明的立体构成图。Fig. 2 is a three-dimensional structure diagram of the present invention.

图3为本发明的横截面图。Figure 3 is a cross-sectional view of the present invention.

图4为本发明的上弦节点横截面图。Fig. 4 is a cross-sectional view of the upper chord node of the present invention.

图5为本发明的下弦节点实施方案一的横截面图。Fig. 5 is a cross-sectional view of Embodiment 1 of the lower chord node of the present invention.

图6为本发明的下弦节点实施方案二的横截面图。Fig. 6 is a cross-sectional view of Embodiment 2 of the lower chord node of the present invention.

图中：1-上层混凝土桥面板；2-下层混凝土桥面板；3-上弦节点板；4-下弦节点板；5-竖腹杆；6-斜腹板；7-抗剪连接件；8-钢筋或型钢。In the figure: 1-upper concrete bridge deck; 2-lower concrete bridge deck; 3-upper chord gusset; 4-lower chord gusset; Rebar or section steel.

具体实施方式Detailed ways

以下结合附图，对本发明的具体实施方式作进一步描述。The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

本发明提供的双层桥面组合桁梁桥由上层混凝土桥面板1、和下层混凝土桥面板2和钢结构腹杆组成，并通过上弦节点板3、下弦节点板4及抗剪连接件7将各组成部分连成整体。上、下层混凝土桥面板既作为承受车辆荷载的桥面板使用，同时作为桁梁的的上、下弦部件参与结构的整体受力(如图1、2所示)。钢结构腹杆由竖腹杆5和斜腹杆6组成，竖腹杆和斜腹杆内也可灌注混凝土，用于抵抗桁梁桥的剪力。处于受拉区的上层混凝土桥面板1和下层混凝土桥面板2中应配有纵向受力钢筋或型钢8(如图3所示)；另外可根据需要施加预应力以防止混凝土开裂。上层混凝土桥面板1和下层混凝土桥面板2可采用预制板、叠合板或现浇板结构形式。The double-deck composite truss bridge provided by the present invention is composed of an upper concrete bridge deck 1, a lower concrete bridge deck 2 and a steel structure web, and is connected by an upper chord gusset 3, a lower chord gusset 4 and a shear connector 7. The parts are linked together into a whole. The upper and lower concrete bridge decks are used not only as bridge decks to bear vehicle loads, but also as the upper and lower chord parts of the truss girders to participate in the overall stress of the structure (as shown in Figures 1 and 2). The steel structure webs are composed of vertical webs 5 and diagonal webs 6, and concrete can also be poured into the vertical webs and diagonal webs to resist the shear force of the truss bridge. The upper concrete bridge deck 1 and the lower concrete bridge deck 2 in the tension zone should be equipped with longitudinal stress reinforcement or section steel 8 (as shown in Figure 3); in addition, prestressing can be applied as required to prevent concrete cracking. The upper concrete bridge deck 1 and the lower concrete bridge deck 2 can adopt the structural forms of prefabricated slabs, laminated slabs or cast-in-place slabs.

图4为本发明的上弦节点横截面图，将上弦节点3连接于上层混凝土桥面板1的下方。下弦节点实施方案可以有两种形式，一种是将下弦节点4连接于下层混凝土桥面板2的上方(图5所示)，或将下弦节点4连接于下层混凝土桥面板2的下方(图6所示)，后者更便于施工。FIG. 4 is a cross-sectional view of the upper chord node of the present invention, where the upper chord node 3 is connected to the lower part of the upper concrete bridge deck 1 . The implementation of the lower chord node can have two forms, one is to connect the lower chord node 4 to the top of the lower concrete bridge deck 2 (as shown in Figure 5), or to connect the lower chord node 4 to the bottom of the lower concrete bridge deck 2 (Figure 6 shown), the latter is more convenient for construction.

Claims (8)

1.一种双层桥面组合桁梁桥，其特征在于：该组合桁梁桥含有上层混凝土桥面板(1)、下层混凝土桥面板(2)和设置在上、下层混凝土桥面板之间的钢结构腹杆，并通过上弦节点板(3)、下弦节点板(4)和抗剪连接件(7)将上、下层混凝土桥面板连成整体，所述的钢结构腹杆由竖腹杆(5)和斜腹杆(6)组成。1. a double-deck composite truss bridge is characterized in that: this composite truss bridge contains the upper concrete deck (1), the lower concrete deck (2) and is arranged between the upper and lower concrete decks Steel structure web members, and the upper and lower concrete bridge decks are connected as a whole through the upper chord gusset plate (3), lower chord gusset plate (4) and shear connectors (7). The steel structure web members are composed of vertical web members (5) and oblique web bar (6) form. 2.根据权利要求1所述的双层桥面组合桁梁桥，其特征在于：处于受拉区的上层混凝土桥面板和下层混凝土桥面板中配有纵向受力钢筋或型钢(8)。2. The double-deck composite truss bridge according to claim 1, characterized in that: the upper concrete bridge deck and the lower concrete bridge deck in the tension zone are equipped with longitudinally stressed steel bars or section steel (8). 3.根据权利要求3所述的双层桥面组合桁梁桥，其特征在于：所述的上层混凝土桥面板(1)和下层混凝土桥面板(2)施加预应力以防止混凝土开裂。3. The double-deck composite truss bridge according to claim 3, characterized in that: the upper concrete deck (1) and the lower concrete deck (2) are prestressed to prevent concrete cracking. 4.根据权利要求1所述的双层桥面组合桁梁桥，其特征在于：上层混凝土桥面板(1)和下层混凝土桥面板(2)采用预制板、叠合板或现浇板结构。4. The double-deck composite truss bridge according to claim 1, characterized in that: the upper concrete bridge deck (1) and the lower concrete bridge deck (2) adopt prefabricated slab, laminated slab or cast-in-place slab structure. 5.根据权利要求1所述的双层桥面组合桁梁桥，其特征在于：所述下弦节点板(4)连接于下层混凝土桥面板(2)的上方。5. The double deck composite truss bridge according to claim 1, characterized in that: the lower chord gusset plate (4) is connected above the lower concrete deck (2). 6.根据权利要求1所述的双层桥面组合桁梁桥，其特征在于：所述下弦节点板(4)连接于下层混凝土桥面板(2)的下方。6. The double-deck composite truss bridge according to claim 1, characterized in that: the lower chord gusset plate (4) is connected below the lower concrete deck (2). 7.根据权利要求1所述的双层桥面组合桁梁桥，其特征在于：所述的竖腹杆(5)和斜腹杆(6)采用圆形或矩形截面。7. The double-deck composite truss bridge according to claim 1, characterized in that: the vertical web bars (5) and diagonal web bars (6) adopt circular or rectangular cross-sections. 8.根据权利要求7所述的双层桥面组合桁梁桥，其特征在于：所述竖腹杆(5)和斜腹杆(6)内灌注混凝土。8. The double-deck composite truss bridge according to claim 7, characterized in that: said vertical web bars (5) and diagonal web bars (6) are filled with concrete.
CNB2007101779728A 2007-11-23 2007-11-23 Double-deck bridge floor combined trussed girder bridge Expired - Fee Related CN100507151C (en)

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CN101967793A (en) * 2010-10-28 2011-02-09 南京工业大学 Rapidly Assembled Segmented Composite Truss Bridge
CN102069139A (en) * 2010-11-26 2011-05-25 天津市天锻压力机有限公司 Split combined structure of large-scale structure member
CN102146658A (en) * 2011-03-04 2011-08-10 清华大学 Locally uncombined suspension bridge steel-concrete combined bridge deck system and construction method of combined bridge deck system
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CN102069139A (en) * 2010-11-26 2011-05-25 天津市天锻压力机有限公司 Split combined structure of large-scale structure member
CN102146658A (en) * 2011-03-04 2011-08-10 清华大学 Locally uncombined suspension bridge steel-concrete combined bridge deck system and construction method of combined bridge deck system
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CN103556563A (en) * 2013-11-11 2014-02-05 中铁第一勘察设计院集团有限公司 Steel-RPC (Reactive Powder Concrete) composite bridge
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CN103614960A (en) * 2013-11-25 2014-03-05 中铁第一勘察设计院集团有限公司 Prestressing hollow-type steel-concrete-combined-structure continuous beam for railways
CN104099859A (en) * 2014-06-20 2014-10-15 中铁大桥勘测设计院集团有限公司 Road and railway double-layer steel-concrete combined beam
CN104100038A (en) * 2014-07-07 2014-10-15 张跃 Girder
CN104499415A (en) * 2014-08-15 2015-04-08 上海市政工程设计研究总院（集团）有限公司 Main girder structure system of double-layer bridge deck cable-stayed bridge
CN104652206A (en) * 2015-02-02 2015-05-27 中铁西北科学研究院有限公司 Assembled urban interchange system
CN105735129A (en) * 2016-02-26 2016-07-06 江苏中铁山桥重工有限公司 Full-welding truss section modularized splicing method
CN105951576A (en) * 2016-06-16 2016-09-21 山东省路桥集团有限公司 Steel plate girder truss type composite-structure construction trestle
CN106284045A (en) * 2016-09-19 2017-01-04 武汉理工大学 A kind of secondary overlapping concrete slab girder steel combined bridge structure and construction method thereof
CN106760182A (en) * 2016-11-22 2017-05-31 浙江绿筑集成科技有限公司 A kind of end diagonal web member in staggered truss structure and preparation method thereof
CN107338719A (en) * 2017-06-26 2017-11-10 长沙理工大学 Box beam with fence type web
CN107905084A (en) * 2017-12-12 2018-04-13 长沙市公路桥梁建设有限责任公司 RPC steel truss combined bridge deck and continuous bridge
CN107905084B (en) * 2017-12-12 2024-05-14 长沙市公路桥梁建设有限责任公司 RPC steel truss combined bridge deck and continuous beam bridge
CN109518588A (en) * 2019-01-14 2019-03-26 中铁二院工程集团有限责任公司 A kind of novel plate-purlin bondbeam and its construction method
CN109868725A (en) * 2019-04-04 2019-06-11 同济大学建筑设计研究院(集团)有限公司 A kind of spanning component of the two-fold linear foot bridge beam of empty stomach
CN109868725B (en) * 2019-04-04 2024-03-22 同济大学建筑设计研究院(集团)有限公司 Bridge span assembly of hollow double-fold-line pedestrian bridge
CN110777680A (en) * 2019-11-13 2020-02-11 广西恒正建设工程质量检测有限公司 Method for reinforcing, lifting and transforming beam bridge
CN112301864A (en) * 2020-11-09 2021-02-02 深圳市桥博设计研究院有限公司 Double-deck steel truss PC composite structure bridge and construction method thereof
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