CN204139048U - A kind of hollow slab bridge with end floor beam constructs - Google Patents

A kind of hollow slab bridge with end floor beam constructs Download PDF

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Publication number
CN204139048U
CN204139048U CN201420636911.9U CN201420636911U CN204139048U CN 204139048 U CN204139048 U CN 204139048U CN 201420636911 U CN201420636911 U CN 201420636911U CN 204139048 U CN204139048 U CN 204139048U
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China
Prior art keywords
hollow slab
floor
bridge
precast hollow
supported
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CN201420636911.9U
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Chinese (zh)
Inventor
吴庆雄
陈宝春
韦建刚
陈康明
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Fuzhou University
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Fuzhou University
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Abstract

The utility model relates to a kind of hollow slab bridge with end floor beam and constructs, belong to technical field of civil, comprise precast hollow slab, end floor beam and cast-in-place structural layer, described precast hollow slab is supported in abutment or pier coping portion along on direction across bridge temporary support side by side, the two ends perimembranous of described precast hollow slab has built end floor beam, described end floor beam is supported in and is positioned at temporary support and indulges on bridge permanent bearing laterally, described end floor beam with build the cast-in-place structural layer be shaped together with end floor beam above precast hollow slab.Not only structure is simple for this kind of hollow slab bridge, and construction method is simple and easy, improve the lateral transport weight bearing power of the hollow slab bridge structure adopting band end floor beam, overcome current domestic assembly hollow slab bridges and easily cause when seat empty bridge construction to be in the defect of disadvantageous stress.

Description

A kind of hollow slab bridge with end floor beam constructs
Technical field
The utility model relates to a kind of hollow slab bridge with end floor beam and constructs and construction method, belongs to technical field of civil.
Background technology
Show according to interrelated data, end the ratio of assembly hollow slab bridges in 2010 shared by highway in China Modular Bridge System and reach 64%.This kind of bridge have building height low, be convenient to the advantages such as prefabricated, design and construction is easy.
But when constructing, bearing plane elevation is difficult to accurate control, causes hollowcore slab may there is seat empty after lifting puts in place, the unfavorable phenomenon that namely what is often called " three leg " supports; Meanwhile, in Cheng Qiaohou operation stage, because the reasons such as support material is aging also can cause the appearance of seat empty phenomenon.Seat empty all can make vehicular load become large to the percussion of bridge construction, and then causes hollow slab bridge to be in disadvantageous stress, easily produces disease, and expense is reinforced in the maintenance bringing hidden danger to the traffic safety of vehicular traffic and increase bridge.
Summary of the invention
In order to overcome the deficiency of existing assembly hollow slab bridges, the utility model provides a kind of hollow slab bridge with end floor beam to construct and construction method, not only structure is simple for this kind of hollow slab bridge, and construction method is simple and easy, improve the lateral transport weight bearing power of the hollow slab bridge structure adopting band end floor beam, overcome current domestic assembly hollow slab bridges and easily cause when seat empty bridge construction to be in the defect of disadvantageous stress.
The technical solution of the utility model is: a kind of hollow slab bridge with end floor beam constructs, comprise precast hollow slab, end floor beam and cast-in-place structural layer, the two ends perimembranous of described precast hollow slab has built end floor beam, described end floor beam is supported in and is positioned at temporary support and indulges on bridge permanent bearing laterally, described end floor beam with build the cast-in-place structural layer be shaped together with end floor beam above precast hollow slab.
Further, described precast hollow slab is supported on the temporary support at two adjacent abutment tops, or is supported on the temporary support of two adjacent pier coping portion, or is supported on the temporary support of two adjacent abutments and pier coping portion.
Further, described precast hollow slab is along vertical bridge to being divided into centre portion and both ends section, and the cross section of described precast hollow slab both ends section is reduced into hollow rectangle cross section by centre portion gradual change.
Further, the end of described precast hollow slab has the longitudinal reinforcement stretching out precast hollow slab centre portion, and the mutual colligation of transverse reinforcement of described longitudinal reinforcement and end floor beam is to form steel mesh reinforcement skeleton.
Further, described temporary support is supported in the end of precast hollow slab centre portion.
Compared with prior art, the utility model has the following advantages: can solve and occur when the bearing of hollow slab bridge comes to nothing the unfavorable problem that " three leg " supports, improve the lateral transport weight bearing power of the hollow slab bridge structure adopting this kind of band end floor beam, end floor beam is made to have the ability of enough lateral transport loads, load is evenly transmitted and is dispensed to other bearings and bears, and the globality of hollow slab bridge can be improved; When seat empty, alleviate the percussion of vehicular load to bridge, and then reduce the possibility even avoiding hollow slab bridge disease to occur, reduce the expense etc. that hollow slab bridge maintenance is reinforced, overcome current domestic assembly hollow slab bridges and easily cause when seat empty bridge construction to be in the defect of disadvantageous stress.
accompanying drawing explanation
Fig. 1 is facade organigram of the present utility model;
Fig. 2 is planar configuration schematic diagram of the present utility model;
Fig. 3 is I-I cross-section structure schematic diagram of Fig. 1 of the present utility model;
Fig. 4 is II-II cross-section structure schematic diagram of Fig. 1 of the present utility model;
In figure: 1-precast hollow slab 2-cast-in-place structural layer 3-end floor beam 4-longitudinal reinforcement 5-transverse reinforcement 6-temporary support 7-permanent bearing 8-bridge pier L1-precast hollow slab end section L2-precast hollow slab centre portion.
Detailed description of the invention
For above-mentioned feature and advantage of the present utility model can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below, but the utility model is not limited to this.
Referring to figs. 1 to Fig. 4, a kind of hollow slab bridge with end floor beam constructs, comprise precast hollow slab 1, end floor beam 3 and cast-in-place structural layer 2, described precast hollow slab is supported on the temporary support 6 at two adjacent abutment tops, or be supported on the temporary support 6 of two adjacent pier coping portion, or be supported on the temporary support 6 of two adjacent abutments and pier coping portion.Described abutment or pier coping portion are also provided with and are positioned at the permanent bearing 7 of temporary support 6 longitudinally outside bridge, the two ends perimembranous of described precast hollow slab 1 builds the end floor beam 3 be supported on permanent bearing 7, and the cast-in-place structural layer 2 be shaped together with end floor beam 3 built by described end floor beam 3 above 1 of precast hollow slab.
In the present embodiment, described precast hollow slab 1 is along vertical bridge to being divided into centre portion L2 and both ends section L1, the cross section of described centre portion L2 comprises various hollowcore slab cross section, such as be with the hollowcore slab cross section of groove and tognue type hinge seam, inverted T-shaped hollowcore slab cross section or I shape hollowcore slab cross section etc., the cross section of described both ends section L1 is reduced into hollow rectangle cross section by centre portion gradual change.
In the present embodiment, the end of described precast hollow slab 1 has the longitudinal reinforcement stretching out precast hollow slab centre portion L2, and described longitudinal reinforcement 4 and the mutual colligation of the transverse reinforcement 5 of end floor beam are to form steel mesh reinforcement skeleton.
In the present embodiment, described temporary support 6 is supported in the end of precast hollow slab centre portion L2, after treating that the concrete of end floor beam 3 and cast-in-place structural layer 2 reaches design strength, end floor beam 3 is supported on permanent bearing 7, now removes temporary support 6.
The foregoing is only preferred embodiment of the present utility model, for the ordinary skill in the art, according to instruction of the present utility model, the hollow slab bridge structure designing multi-form band end floor beam does not need performing creative labour, the situation not departing from principle of the present utility model and spirit descend to the mortal world make according to the utility model claim equalization change, amendment, replace and modification, all should belong to covering scope of the present utility model.

Claims (5)

1. the hollow slab bridge with end floor beam constructs, comprise precast hollow slab, end floor beam and cast-in-place structural layer, it is characterized in that, described precast hollow slab is supported in abutment or pier coping portion along on direction across bridge temporary support side by side, the two ends perimembranous of described precast hollow slab has built end floor beam, described end floor beam is supported in and is positioned at temporary support and indulges on bridge permanent bearing laterally, described end floor beam with build the cast-in-place structural layer be shaped together with end floor beam above precast hollow slab.
2. a kind of hollow slab bridge with end floor beam according to claim 1 constructs, described precast hollow slab is supported on the temporary support at two adjacent abutment tops, or be supported on the temporary support of two adjacent pier coping portion, or be supported on the temporary support of two adjacent abutments and pier coping portion.
3. a kind of hollow slab bridge with end floor beam according to claim 1 constructs, described precast hollow slab is along vertical bridge to being divided into centre portion and both ends section, and the cross section of described precast hollow slab both ends section is reduced into hollow rectangle cross section by centre portion gradual change.
4. a kind of hollow slab bridge with end floor beam according to claim 1 or 3 constructs, the end of described precast hollow slab has the longitudinal reinforcement stretching out precast hollow slab centre portion, and the mutual colligation of transverse reinforcement of described longitudinal reinforcement and end floor beam is to form steel mesh reinforcement skeleton.
5. a kind of hollow slab bridge with end floor beam according to claim 1,2 or 3 constructs, and described temporary support is supported in the end of precast hollow slab centre portion.
CN201420636911.9U 2014-10-30 2014-10-30 A kind of hollow slab bridge with end floor beam constructs Active CN204139048U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420636911.9U CN204139048U (en) 2014-10-30 2014-10-30 A kind of hollow slab bridge with end floor beam constructs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420636911.9U CN204139048U (en) 2014-10-30 2014-10-30 A kind of hollow slab bridge with end floor beam constructs

Publications (1)

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CN204139048U true CN204139048U (en) 2015-02-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104294752A (en) * 2014-10-30 2015-01-21 福州大学 Hollow slab bridge structure with end floor beams and construction method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104294752A (en) * 2014-10-30 2015-01-21 福州大学 Hollow slab bridge structure with end floor beams and construction method thereof
CN104294752B (en) * 2014-10-30 2016-06-01 福州大学 The hollow slab bridge structure of a kind of band end crossbeam and constructional method thereof

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