CN205617227U - Light -duty combination bridge girder construction of full prefabrication that can erect fast - Google Patents

Light -duty combination bridge girder construction of full prefabrication that can erect fast Download PDF

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Publication number
CN205617227U
CN205617227U CN201620196447.5U CN201620196447U CN205617227U CN 205617227 U CN205617227 U CN 205617227U CN 201620196447 U CN201620196447 U CN 201620196447U CN 205617227 U CN205617227 U CN 205617227U
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duty
prefabricated light
complete prefabricated
bridge
light
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邵旭东
晏班夫
黄政宇
邓舒文
吴罗明
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邵旭东
晏班夫
黄政宇
邓舒文
吴罗明
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Abstract

The utility model discloses a light -duty combination bridge girder construction of full prefabrication that can erect fast, including the light -duty combination beam unit of full prefabrication that docks in proper order along the horizontal direction of bridge more than two, prefabricated light -duty combination beam unit is formed by two steel I -beams and the whole prefabrication of decking of supporting on two steel I -beams entirely, two steel I -beams include two I shaped steel roof beams of following bridge longitudinal arrangement and being parallel to each other, the lower part of decking is equipped with by indulging the crisscross latticed thin plate spare that forms of rib and cross rib, two adjacent decking butt joints department of prefabricating light -duty combination beam unit entirely set up cast -in -place seam, each butt joint department of prefabricating the decking of light -duty combination beam unit entirely is equipped with the connecting reinforcement who extends to in the cast -in -place seam. The utility model has the advantages of the dead weight is light, intensity is high, transportation and construction convenience are swift.

Description

Can the complete prefabricated light-duty combined bridge structure of fast erecting
Technical field
This utility model relates to technical field of bridge engineering, be specifically related to a kind of can the complete prefabricated light-duty combined bridge structure of fast erecting.
Background technology
The prefabricated beam bridge of widely used normal concrete on existing Short/Medium Span Bridge, its major defect includes: from great, construction complexity, the field operation time is long, many employing prestressing force forms, differs owing to depositing beam duration, the construction error that between adjacent beam body, inverted camber deviation causes is wayward, normal concrete tensile strength is low, and cracking risk is big, and lasting hazard highlights.
Utility model content
The technical problems to be solved in the utility model is the deficiency overcoming prior art to exist, it is provided that a kind of, transport high from heavy and light, intensity and convenient and quick construction can the complete prefabricated light-duty combined bridge structure of fast erecting.
For solve above-mentioned technical problem, this utility model by the following technical solutions:
A kind of can the complete prefabricated light-duty combined bridge structure of fast erecting, the complete prefabricated light-duty composite beams docked successively along the horizontal direction of bridge including two or more, described complete prefabricated light-duty composite beams is formed by double steel I-beams are integral prefabricated with the floorings being supported on double steel I-beam, described pair of steel I-beam includes two i-shape steel beams being longitudinally arranged along bridge and being parallel to each other, the bottom of described floorings is provided with the latticed slim plate being staggered to form by longitudinal rib and cross rib, the floorings joint of adjacent two complete prefabricated light-duty composite beams arranges cast-in-place seam, the joint of the floorings of each complete prefabricated light-duty composite beams is provided with the connection reinforcing bar extended in cast-in-place seam.
Above-mentioned complete prefabricated light-duty combined bridge structure, it is preferred that the upper weld of described i-shape steel beam has the WELDING STUDS being connected with floorings.
Above-mentioned complete prefabricated light-duty combined bridge structure, it is preferred that the steel diaphragm plate that described complete prefabricated light-duty composite beams also includes that polylith is prefabricated and is connected between two i-shape steel beams, polylith steel diaphragm plate is arranged along bridge longitudinal direction uniform intervals.
Above-mentioned complete prefabricated light-duty combined bridge structure, it is preferred that the middle part of described steel diaphragm plate is provided with hollow hole.
Above-mentioned complete prefabricated light-duty combined bridge structure, it is preferred that the connection reinforcing bar of adjacent two complete prefabricated light-duty composite beams is in cast-in-place seam crossing colligation, and is configured with longitudinal reinforcement in cast-in-place seam.
Above-mentioned complete prefabricated light-duty combined bridge structure, it is preferred that the cross-sectional width of described longitudinal rib and/or cross rib is gradually reduced along direction from top to bottom.
Above-mentioned complete prefabricated light-duty combined bridge structure, preferably, the described full floorings of prefabricated light-duty composite beams and the joint of adjacent bridge panel are provided with one along the floor of bridge longitudinal extension, the floor of each complete prefabricated light-duty composite beams is provided with groove towards the end face of the floor of adjacent complete prefabricated light-duty composite beams, described cast-in-place seam is between the floor of two complete prefabricated light-duty composite beams, and cast-in-place seam is full of the groove of floor of two complete prefabricated light-duty composite beams.
Above-mentioned complete prefabricated light-duty combined bridge structure, it is preferred that described i-shape steel beam includes riser portion, the upper cross plate portion being connected to upper end, riser portion and is connected to the lower cross plate portion of riser subordinate's end, and described floorings are supported in described upper cross plate portion.
Above-mentioned complete prefabricated light-duty combined bridge structure, it is preferred that the single span of described bridge structure is 20m ~ 60m across footpath.
Compared with prior art, the utility model has the advantage of:
First, what this utility model provided can the complete prefabricated light-duty combined bridge structure of fast erecting, floorings are used to be combined with double steel I-beams, floorings can use ultra-high performance concrete (UHPC), the durability of bridge structure can be strengthened, reduce later maintenance expense, floorings are combined with double steel I-beams and can give full play to the most excellent performance simultaneously, bridge structure height lightness can be realized, compared with tradition precast concrete or combined beam structure, greatly reduce dead load, improve bridge span ability, and in transport, whole it is more prone to across the link such as assembled;
Second, this utility model eliminates prestressing force compared to tradition prestressed concrete beam, it is to avoid traditional prestressed structure Common Diseases;
3rd, this utility model uses double steel I-beam and the integral prefabricated complete prefabricated light-duty composite beams of floorings, can integral hoisting construct, scene only needs to pour longitudinal seam, in work progress, all can use construction equipment and the construction technology of existing precast concrete beam, without increasing new equipment investment, new skills training is carried out without to workmen, its construction method is easy, quick, rapidly, significant for ensureing duration, raising efficiency of construction, and construction period is little on city impact, has a wide range of applications;
To sum up, the complete prefabricated light-duty combined bridge structure of this utility model has from advantages such as heavy and light, good endurance, transport and convenient and quick construction.This complete prefabricated light-duty combined bridge structure can be applicable to simply supported girder bridge or continuous bridge, is particularly suitable for city medium and small bridges construction.
Accompanying drawing explanation
Fig. 1 is the partial structurtes schematic diagram of the bridge structure using complete prefabricated light-duty composite beams.
Fig. 2 is A A sectional view in Fig. 1.
Fig. 3 is B B sectional view in Fig. 1.
Fig. 4 is structure for amplifying schematic diagram at C in Fig. 3.
Marginal data:
1, floorings;11, longitudinal rib;12, cross rib;13, floor;131, groove;2, i-shape steel beam;3, cast-in-place seam;4, reinforcing bar is connected;5, steel diaphragm plate;51, hollow hole;6, longitudinal reinforcement.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.
As shown in Figures 1 to 4, the present embodiment can the complete prefabricated light-duty combined bridge structure of fast erecting, the complete prefabricated light-duty composite beams docked including two horizontal directions along bridge, complete prefabricated light-duty composite beams is formed by double steel I-beams are integral prefabricated with the floorings 1 being supported on double steel I-beam, double steel I-beams include two i-shape steel beams 2 being longitudinally arranged along bridge and being parallel to each other, the bottom of floorings 1 is provided with the latticed slim plate being staggered to form by longitudinal rib 11 and cross rib 12, floorings 1 joint of adjacent two complete prefabricated light-duty composite beams arranges cast-in-place seam 3, the joint of the floorings 1 of each complete prefabricated light-duty composite beams is provided with the connection reinforcing bar 4 extended in cast-in-place seam 3.
In the present embodiment, the upper weld of i-shape steel beam 2 has double WELDING STUDS, cast-in-place UHPC floorings 1 on it, is allowed to form an entirety.
In the present embodiment, complete prefabricated light-duty composite beams also includes that five pieces of steel diaphragm plates 5 that are prefabricated and that be connected between two i-shape steel beams 2, five pieces of steel diaphragm plates 5 are arranged along bridge longitudinal direction uniform intervals.Each steel diaphragm plate 5 is along the discontinuous distribution of bridge lateral.
Further, the middle part of steel diaphragm plate 5 is provided with hollow hole 51, on the premise of ensureing that meeting design requires, can effectively reduce the deadweight of bridge.
In the present embodiment, the connection reinforcing bar 4 of adjacent two complete prefabricated light-duty composite beams is configured with longitudinal reinforcement 6 in colligation, and cast-in-place seam 3 at cast-in-place seam 3, it is possible to strengthen bonding strength.
In the present embodiment, the cross-sectional width of longitudinal rib 11 and/or cross rib 12 is gradually reduced along direction from top to bottom, namely the width of longitudinal rib 11 and/or cross rib 12 is gradually reduced from end face to bottom surface, and the cross section of longitudinal rib 11 and/or cross rib 12 is inverted trapezoidal shape.
In the present embodiment, the floorings 1 of complete prefabricated light-duty composite beams and the joint of adjacent bridge panel 1 are provided with one along the floor 13 of bridge longitudinal extension, the floor 13 of each complete prefabricated light-duty composite beams is provided with groove 131 towards the end face of the floor 13 of adjacent complete prefabricated light-duty composite beams, cast-in-place seam 3 is between the floor 13 of two complete prefabricated light-duty composite beams, and cast-in-place seam 3 is full of the groove 131 of floor 13 of two complete prefabricated light-duty composite beams.
In the present embodiment, i-shape steel beam 2 includes riser portion, the upper cross plate portion being connected to upper end, riser portion and is connected to the lower cross plate portion of riser subordinate's end, and floorings 1 are supported in upper cross plate portion.In the present embodiment, the beam section longitudinal length of complete prefabricated light-duty composite beams is 30m, and transverse width is 6m, and longitudinal length is equal to bridge single span span length degree.In other embodiments, the single span of bridge structure can select across footpath in the range of 20m ~ 60m.
The construction method of above-mentioned complete prefabricated light-duty combined bridge structure comprises the following steps:
A () is prefabricated in the factory double steel I-beam, welding WELDING STUDS in double steel I-beam top flanges pours ultra-high performance concrete (UHPC) floorings 1, forms complete prefabricated light-duty composite beams;Prefabricated bridge 1 uses more than bending and tensile strength 20MPa, the ultra-high performance concrete of comprcssive strength more than 120MPa;
(b) the most assembled complete prefabricated light-duty composite beams at the construction field (site);
C () colligation at the longitudinal seam of adjacent two complete prefabricated light-duty composite beams connects reinforcing bar 4 and longitudinal reinforcement 6, simultaneously cast in situs ultra-high performance concrete between the space at longitudinal seam;The ultra-high performance concrete of cast in situs is more than bending and tensile strength 20MPa, the ultra-high performance concrete of comprcssive strength more than 120MPa;
D () carries out maintenance to watering ultra-high performance concrete after at longitudinal seam, form cast-in-place seam 3;
E (), after the ultra-high performance concrete of cast-in-place seam 3 reaches design strength, completes the construction of deck paving and appurtenant work.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to above-described embodiment.To those of ordinary skill in the art, the modifications and variations obtained by under without departing from this utility model technology concept thereof also should be regarded as protection domain of the present utility model.

Claims (9)

1. one kind can the complete prefabricated light-duty combined bridge structure of fast erecting, it is characterized in that: include the complete prefabricated light-duty composite beams that two or more is docked successively along the horizontal direction of bridge, described complete prefabricated light-duty composite beams is formed by double steel I-beams are integral prefabricated with the floorings (1) being supported on double steel I-beam, described pair of steel I-beam includes two i-shape steel beams (2) being longitudinally arranged along bridge and being parallel to each other, the bottom of described floorings (1) is provided with the latticed slim plate being staggered to form by longitudinal rib (11) and cross rib (12), floorings (1) joint of adjacent two complete prefabricated light-duty composite beams arranges cast-in-place seam (3), the joint of the floorings (1) of each complete prefabricated light-duty composite beams is provided with the connection reinforcing bar (4) extended in cast-in-place seam (3).
Complete prefabricated light-duty combined bridge structure the most according to claim 1, it is characterised in that: the upper weld of described i-shape steel beam (2) has the WELDING STUDS being connected with floorings (1).
Complete prefabricated light-duty combined bridge structure the most according to claim 1, it is characterized in that: the steel diaphragm plate (5) that described complete prefabricated light-duty composite beams also includes that polylith is prefabricated and is connected between two i-shape steel beams (2), polylith steel diaphragm plate (5) is arranged along bridge longitudinal direction uniform intervals.
Complete prefabricated light-duty combined bridge structure the most according to claim 3, it is characterised in that: the middle part of described steel diaphragm plate (5) is provided with hollow hole (51).
Complete prefabricated light-duty combined bridge structure the most according to claim 1, it is characterised in that: the connection reinforcing bar (4) of adjacent two complete prefabricated light-duty composite beams is in cast-in-place seam (3) place's colligation, and is configured with longitudinal reinforcement (6) in cast-in-place seam (3).
Complete prefabricated light-duty combined bridge structure the most according to claim 1, it is characterised in that: the cross-sectional width of described longitudinal rib (11) and/or cross rib (12) is gradually reduced along direction from top to bottom.
Complete prefabricated light-duty combined bridge structure the most according to claim 1, it is characterized in that: the described floorings (1) of complete prefabricated light-duty composite beams and the joint of adjacent bridge panel (1) are provided with one along the floor (13) of bridge longitudinal extension, the floor (13) of each complete prefabricated light-duty composite beams is provided with groove (131) towards the end face of the floor (13) of adjacent complete prefabricated light-duty composite beams, described cast-in-place seam (3) is positioned between the floor (13) of two complete prefabricated light-duty composite beams, and cast-in-place seam (3) is full of the groove (131) of floor (13) of two complete prefabricated light-duty composite beams.
Complete prefabricated light-duty combined bridge structure the most according to claim 1, it is characterized in that: described i-shape steel beam (2) includes riser portion, the upper cross plate portion being connected to upper end, riser portion and is connected to the lower cross plate portion of riser subordinate's end, and described floorings (1) are supported in described upper cross plate portion.
Complete prefabricated light-duty combined bridge structure the most according to claim 1, it is characterised in that: the single span of described bridge structure is 20m ~ 60m across footpath.
CN201620196447.5U 2016-03-15 2016-03-15 Light -duty combination bridge girder construction of full prefabrication that can erect fast Active CN205617227U (en)

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CN201620196447.5U CN205617227U (en) 2016-03-15 2016-03-15 Light -duty combination bridge girder construction of full prefabrication that can erect fast

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Application Number Priority Date Filing Date Title
CN201620196447.5U CN205617227U (en) 2016-03-15 2016-03-15 Light -duty combination bridge girder construction of full prefabrication that can erect fast

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109082998A (en) * 2018-07-05 2018-12-25 湖南省交通规划勘察设计院有限公司 Integral prefabricated steel plate combination girder construction and construction method
CN110700089A (en) * 2019-10-22 2020-01-17 湖南大学 Cast-in-place wet joint structure and bridge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109082998A (en) * 2018-07-05 2018-12-25 湖南省交通规划勘察设计院有限公司 Integral prefabricated steel plate combination girder construction and construction method
CN110700089A (en) * 2019-10-22 2020-01-17 湖南大学 Cast-in-place wet joint structure and bridge

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