CN207597261U - Steel reinforced concrete combination Continuous Box Girder Bridge hogging moment area combined bridge deck harden structure - Google Patents

Steel reinforced concrete combination Continuous Box Girder Bridge hogging moment area combined bridge deck harden structure Download PDF

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Publication number
CN207597261U
CN207597261U CN201721500607.1U CN201721500607U CN207597261U CN 207597261 U CN207597261 U CN 207597261U CN 201721500607 U CN201721500607 U CN 201721500607U CN 207597261 U CN207597261 U CN 207597261U
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China
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steel
stiffener
upper cover
hole
box girder
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Expired - Fee Related
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CN201721500607.1U
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Chinese (zh)
Inventor
胡峰强
廖皆文
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Nanchang University
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Nanchang University
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Abstract

A kind of steel reinforced concrete combination Continuous Box Girder Bridge hogging moment area combined bridge deck harden structure, including:Upper cover plate, lower cover, coxostermum, end diaphragm plate, transverse stiffener, longitudinal stiffener;Upper cover plate, lower cover, coxostermum, end diaphragm plate, transverse stiffener, longitudinal stiffener are welded to each other to form multiple steel cell compartments;The position corresponded at each steel cell compartment on upper cover plate is equipped with pouring hole and hole of vibrating;Concrete has been poured by pouring hole in steel cell compartment.Due to setting transverse stiffener and longitudinal stiffener in combined bridge deck, transverse stiffener and longitudinal stiffener weld to form multiple steel cell compartments with upper cover plate, lower cover, coxostermum, end diaphragm plate, the casting concrete into steel cell compartment again, so as to reduce the tensile stress of steel reinforced concrete combination Continuous Box Girder Bridge the decking in the negative moment region, the durability of conventional concrete floorings is improved, solves the problems, such as that existing steel reinforced concrete combination Continuous Box Girder Bridge the decking in the negative moment region is easy to crack.

Description

Steel reinforced concrete combination Continuous Box Girder Bridge hogging moment area combined bridge deck harden structure
Technical field
This application involves technical field of bridge engineering, and in particular to a kind of steel reinforced concrete combination Continuous Box Girder Bridge hogging moment area combination Deck structrue and construction method.
Background technology
The characteristics of steel reinforced concrete combination Continuous Box Girder Bridge utilizes the tensile property of steel and good concrete anti-compression performance, by the two group It works altogether, there is apparent economic and technical advantage relative to traditional steel box-girder and Prestressed Concrete Bridges.But For the middle pier pier top hogging moment area of multispan steel reinforced concrete combination Continuous Box Girder Bridge, it may appear that the situation of concrete slab tension is drawn If stress is more than concrete in tension feasible value, which can crack, and reduce the durable of structure Property influences the structure service life of bridge.
The existing method for solving steel reinforced concrete combination Continuous Box Girder Bridge hogging moment area concrete cracking has.
1. in hogging moment area concrete slab inner stretch-draw prestressing force.The method prestressed stretch-draw and anchoring are complicated, and pre- Stress loss is difficult to control.
2. adjusting bearing relative elevation forms prestressing force.The method bearing adjustment quantities is too big, and economic effect is poor.
3. using longitudinal direction not shearing resistance anti-pulling connector.The method site operation shear connector workload is too big, and not Conducive to later maintenance.
Therefore, it is necessary to seek to solve new construction or method that steel reinforced concrete combines Continuous Box Girder Bridge hogging moment area concrete cracking.
Utility model content
The application provides a kind of steel reinforced concrete combination Continuous Box Girder Bridge hogging moment area combined bridge deck harden structure simple in structure, relatively The tensile capacity of floorings is enhanced in traditional hogging moment area concrete slab, improves the durability of floorings.
A kind of steel reinforced concrete combination Continuous Box Girder Bridge hogging moment area combined bridge deck harden structure, packet are provided in a kind of embodiment Include upper cover plate, lower cover, coxostermum, end diaphragm plate, transverse stiffener, longitudinal stiffener;Upper cover plate, lower cover, coxostermum, end Diaphragm plate, transverse stiffener, longitudinal stiffener are welded to each other to form multiple steel cell compartments;Correspond at each steel cell compartment on upper cover plate Position be equipped with pouring hole and vibrate hole;Concrete has been poured by pouring hole in steel cell compartment;Steel cell compartment is provided with venthole.
Preferably, transverse steel, longitudinal reinforcement and peg are further included, is preset on the transverse stiffener and longitudinal stiffener There is through-hole, transverse steel is arranged in the through-hole of longitudinal stiffener, and longitudinal reinforcement is arranged in the through-hole of transverse stiffener;It is described Welding of peg is on upper cover plate and lower cover, and peg is perpendicular to cover board plate face.
Preferably, upper cover plate is different from lower cover extension elongation.
Preferably, flat anchor slab and flat bellows are further included, the construction hole for placing flat anchor slab is located at floorings upper cover plate, flat Anchor slab and flat bellows are tightly attached to end diaphragm plate both sides.
The construction method of above-mentioned steel reinforced concrete combination Continuous Box Girder Bridge hogging moment area combined bridge deck harden structure, by transverse stiffener, Longitudinal stiffener is welded in the space being made of upper cover plate, lower cover, coxostermum and end diaphragm plate, is divided into multiple steel lattice Room;Pass through casting concrete and vibration compacting in the preset pouring hole in steel box top and the Kong Xianggang casees that vibrate.
Preferably, transverse stiffener, be preset with through-hole on longitudinal stiffener, be divided into before steel cell compartment and intert in through-hole Transverse steel and longitudinal reinforcement, and the weld stud on upper cover plate and lower cover.
Steel reinforced concrete according to above-described embodiment combines Continuous Box Girder Bridge hogging moment area combined bridge deck harden structure and construction method, by In setting transverse stiffener and longitudinal stiffener in combined bridge deck, transverse stiffener and longitudinal stiffener and upper cover plate, under Cover board, coxostermum, end diaphragm plate weld to form multiple steel cell compartments, then the casting concrete in steel cell compartment, relative to hogging moment Area's conventional concrete floorings enhance the tensile capacity of floorings, improve the durability of floorings, solve existing steel The problem of mixed combination Continuous Box Girder Bridge hogging moment area concrete slab is easy to crack.Further, add in transverse stiffener and longitudinal direction Strength rib is equipped with through-hole, and transverse steel and longitudinal reinforcement are interted in through-hole, the rigidity of floorings is increased, further enhances The tensile capacity of floorings.
Description of the drawings
Fig. 1 is the utility model combined bridge deck stereochemical structure view.
Fig. 2 is the utility model combined bridge deck front view.
M-M sectional views in Fig. 3 Fig. 2.
N-N sectional views in Fig. 4 Fig. 2.
Fig. 5 is transverse stiffener schematic diagram.
Fig. 6 is longitudinal stiffener schematic diagram.
Fig. 7 is the utility model toughened internal stress floorings schematic diagram.
Fig. 8 is the utility model combined bridge deck board construction method flow chart.
Specific embodiment
The utility model is described in further detail below by specific embodiment combination attached drawing.It is wherein different to implement Similar component employs associated similar element numbers in mode.In the following embodiments, many datail descriptions are In order to enable the application can be better understood.However, those skilled in the art can be without lifting an eyebrow recognize, which part Feature is dispensed or can be substituted by other elements, material, method in varied situations.In some cases, Some relevant operations of the application are there is no display in the description or describe, this is the core in order to avoid the application It is flooded by excessive description, and to those skilled in the art, these relevant operations, which are described in detail, not to be necessary, They can completely understand relevant operation at the general technology knowledge of description and this field in specification.
It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object, Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and It is indirectly connected with(Connection).
- 6 are please referred to Fig.1, the utility model steel reinforced concrete combines Continuous Box Girder Bridge hogging moment area combined bridge deck harden structure, including: Upper cover plate 1, lower cover 2, coxostermum 3, longitudinal stiffener 4, transverse stiffener 5, end diaphragm plate 6;Upper cover plate 1, lower cover 2, side Web 3, longitudinal stiffener 4, transverse stiffener 5, end diaphragm plate 6 are welded to each other to form multiple steel cell compartments;Correspond on upper cover plate 1 Position at each steel cell compartment is equipped with pouring hole 11 and hole 12 of vibrating;Concrete has been poured by pouring hole 11 in steel cell compartment, Everything goes well with your work carries out to make to pour, and steel cell compartment is provided with venthole 21, i.e., open-minded on the position that steel cell compartment is corresponded in lower cover 2 Stomata 21.
As the preferred embodiment of the utility model, transverse steel 7 and longitudinal reinforcement 8, the lateral stiffening are further included Through-hole 51,41 is preset on rib 5 and longitudinal stiffener 4 respectively, transverse steel 7 is arranged in the through-hole 41 of longitudinal stiffener, is indulged It is arranged in the through-hole 51 of transverse stiffener to reinforcing bar 8, after casting concrete, structure becomes more to consolidate, and improves composite bridge The durability of panel.
As the preferred embodiment of the utility model, peg 9 is welded on upper cover plate 1 and lower cover 2, peg 9 is vertical In cover board plate face.
As the preferred embodiment of the utility model, flat anchor slab 14 and flat bellows 15 are further included, place flat anchor slab Construction hole be located at floorings upper cover plate, flat anchor slab and flat bellows are tightly attached to end diaphragm plate both sides.
As the preferred embodiment of the utility model, flat anchor slab construction is preset on upper cover plate 1 and end diaphragm plate 6 respectively Hole 13.
As the preferred embodiment of the utility model, upper cover plate should stretch out combined bridge deck, lower cover respectively with lower cover Plate stretches out a segment length relative to upper cover plate less.
Fig. 8 is please referred to, the utility model steel reinforced concrete combines Continuous Box Girder Bridge hogging moment area combined bridge deck construction method, Including.
101st, transverse stiffener, longitudinal stiffener are welded on and are made of upper cover plate, lower cover, coxostermum, end diaphragm plate Space in, be divided into multiple steel cell compartments.
102nd, the position of lower cover shortage should shift to an earlier date pre- formwork supporting plate, by the preset pouring hole in steel box top and vibrate hole to Casting concrete and vibration compacting in steel case.
In the other embodiments of the utility model, through-hole is preset on transverse stiffener, longitudinal stiffener, is divided into steel Further comprise interting transverse steel and longitudinal reinforcement in through-hole, and the weld stud on upper cover plate and lower cover before cell compartment Nail.
It certainly, need to be by combined bridge deck and steel reinforced concrete knot for combined bridge deck 18 is made to be supported during practice of construction It closes section 17 to be connected as one, is consolidated flat anchor slab 14 and flat bellows 15 by upper cover plate and the preset construction hole of end diaphragm plate Floorings designated position is scheduled on, prestress wire 16 is anchored on flat anchor slab 14.With reference to figure 7, held using being previously positioned at The flat anchor slabs of diaphragm plate both sides, flat bellows in the pre-set prestress wire 16 of toughened internal stress other end tensioning, Combined bridge deck is made to form entirety with toughened internal stress.
Use above specific case is illustrated the utility model, is merely used to help understand the utility model, and Not limiting the utility model.For those skilled in the art of the present invention, the think of according to the utility model Think, several simple deductions, deformation can also be made or replace.

Claims (4)

1. a kind of steel reinforced concrete combination Continuous Box Girder Bridge hogging moment area combined bridge deck harden structure, which is characterized in that including:
Upper cover plate, lower cover, coxostermum, end diaphragm plate, transverse stiffener, longitudinal stiffener;Upper cover plate, lower cover, coxostermum, End diaphragm plate, transverse stiffener, longitudinal stiffener are welded to each other to form multiple steel cell compartments;Correspond to each steel cell compartment on upper cover plate The position at place is equipped with pouring hole and hole of vibrating;Concrete has been poured by pouring hole in steel cell compartment;Steel cell compartment is provided with ventilation Hole.
2. steel reinforced concrete combination Continuous Box Girder Bridge hogging moment area combined bridge deck harden structure according to claim 1, feature exist In, transverse steel, longitudinal reinforcement and peg are further included, through-hole is preset on the transverse stiffener and longitudinal stiffener, it is lateral Reinforcing bar is arranged in the through-hole of longitudinal stiffener, and longitudinal reinforcement is arranged in the through-hole of transverse stiffener;The welding of peg exists On upper cover plate and lower cover, peg is perpendicular to cover board plate face.
3. steel reinforced concrete combination Continuous Box Girder Bridge hogging moment area combined bridge deck harden structure according to claim 1, feature exist In upper cover plate is different from lower cover extension elongation.
4. steel reinforced concrete combination Continuous Box Girder Bridge hogging moment area combined bridge deck harden structure according to claim 1, which is characterized in that Flat anchor slab and flat bellows are further included, the construction hole for placing flat anchor slab is located at floorings upper cover plate, flat anchor slab and flat ripple Pipe is tightly attached to end diaphragm plate both sides.
CN201721500607.1U 2017-11-13 2017-11-13 Steel reinforced concrete combination Continuous Box Girder Bridge hogging moment area combined bridge deck harden structure Expired - Fee Related CN207597261U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721500607.1U CN207597261U (en) 2017-11-13 2017-11-13 Steel reinforced concrete combination Continuous Box Girder Bridge hogging moment area combined bridge deck harden structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721500607.1U CN207597261U (en) 2017-11-13 2017-11-13 Steel reinforced concrete combination Continuous Box Girder Bridge hogging moment area combined bridge deck harden structure

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CN207597261U true CN207597261U (en) 2018-07-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107740344A (en) * 2017-11-13 2018-02-27 南昌大学 Steel reinforced concrete combines Continuous Box Girder Bridge hogging moment area combined bridge deck harden structure and construction method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107740344A (en) * 2017-11-13 2018-02-27 南昌大学 Steel reinforced concrete combines Continuous Box Girder Bridge hogging moment area combined bridge deck harden structure and construction method

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Granted publication date: 20180710

Termination date: 20201113