CN208039004U - Suitable for the UHPC prefabricated panel trestles under strong corrosive environment - Google Patents

Suitable for the UHPC prefabricated panel trestles under strong corrosive environment Download PDF

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Publication number
CN208039004U
CN208039004U CN201820262181.9U CN201820262181U CN208039004U CN 208039004 U CN208039004 U CN 208039004U CN 201820262181 U CN201820262181 U CN 201820262181U CN 208039004 U CN208039004 U CN 208039004U
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China
Prior art keywords
pile foundation
uhpc
steel pipe
trestles
floorings
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CN201820262181.9U
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Chinese (zh)
Inventor
张永涛
王敏
郑和晖
彭鹏
代浩
陈平
巫兴发
田飞
毛昌庆
彭成明
杜松
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CCCC Second Harbor Engineering Co
CCCC Highway Long Bridge Construction National Engineering Research Center Co Ltd
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CCCC Second Harbor Engineering Co
CCCC Highway Long Bridge Construction National Engineering Research Center Co Ltd
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Priority to CN201820262181.9U priority Critical patent/CN208039004U/en
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Abstract

The utility model discloses a kind of UHPC prefabricated panel trestles suitable under strong corrosive environment, including:Pile foundation is fixed on supporting course or less vertically;Support bracket, support plate horizontal abutment and the circle of outer wall one for being fixed on the pile foundation;Precast truss frame structure comprising the steel pipe of lower part and the holder on top;Hollow in the lower end of the steel pipe, the lower end of the steel pipe is set in the pile foundation upper end and is against in the support plate of the support bracket, and grouting liquid is full of between the gap between the steel pipe and pile foundation;Steel platform beam, along vertical bridge to being arranged at intervals on the holder;Floorings, level are erected at the upper surface of the steel platform beam.The utility model has many advantages, such as corrosion resistant, short construction period, can be widely applied to trestle technical field of construction.

Description

Suitable for the UHPC prefabricated panel trestles under strong corrosive environment
Technical field
The utility model is related to trestle technical field of construction.More specifically, the utility model is related to one kind being suitable for strong corruption Lose the UHPC prefabricated panel trestles under environment.
Background technology
In science of bridge building project, temporary trestle bridge is usually set up for convenience of construction, trestle is as transport material, equipment, personnel And the temporary bridge facility built, it is the basic engineering and controlling work that main bridge construction material supply and traffic waterborne come in and go out Journey.Based on traditional trestle work structure form generally use inserting piling steel-pipe pile, steel platform beam is set up on welding beam, panel is then adopted With steel construction face layer or armored concrete prefabricated panel.
During practice of construction, the basis of conventional trestle links bar, distribution beam etc. and often welds at the scene, welding job amount Greatly, working efficiency is relatively low, and welding quality is difficult to ensure.Lateral blanking is difficult, due to being needed in processing, installation, demolishing process It is cut repeatedly with oxygen, spillage of material is big, of high cost.The material repeatedly having enough to meet the need will also result in local damage by the welding repeated Bring security risk.
And for bridge floor, traditional steel bridge surface tends to big burn into deformation, fatigue cracking, damage of mating formation occur The phenomenon that, surface layer structure scene is laid with and also needs to weld layer by layer, low construction efficiency;From great, situ wet connects reinforced concrete bridge deck Joint working amount is big, and quality is difficult to ensure, especially in the adverse circumstances construction such as high damp and hot, high salinity, the corrosion failure of face layer It will aggravate.
The utility model aims to solve the problem that existing temporary construction trestle usually has that adverse circumstances corrosion failure is serious, bridge floor paving The deficiencies of dress damages, Deformation control difficulty is big, long construction period.
Utility model content
One purpose of the utility model is to provide a kind of corrosion resistant, short construction period suitable under strong corrosive environment UHPC prefabricated panel trestles.
In order to realize these purposes and other advantages according to the present utility model, a kind of be suitable under strong corrosive environment is provided UHPC prefabricated panel trestles, including:Pile foundation is fixed on supporting course or less vertically;Support bracket, support plate horizontal abutment And the outer wall one for being fixed on the pile foundation encloses;Precast truss frame structure comprising the steel pipe of lower part and the holder on top;The steel pipe Lower end in it is hollow, the lower end of the steel pipe is set in the pile foundation upper end and is against in the support plate of the support bracket, institute It states and is full of grouting liquid between the gap between steel pipe and pile foundation;Steel platform beam, along vertical bridge to being arranged at intervals on the holder;Bridge Panel, level are erected at the upper surface of the steel platform beam.
Preferably, the floorings are prefabricated U HPC floorings.
Preferably, it is fixedly connected by multiple vertical U-bolts between the floorings and steel platform beam.
Preferably, the prefabricated U HPC floorings include it is multiple along vertical bridge to segment UHPC floorings, adjacent segment The upper surface of the junction of UHPC floorings, which is invaginated, forms panel groove, and the bottom surface fitting of the panel groove is provided with steel Plate, a pair of bolts sequentially passes through downwards steel plate and adjacent segment UHPC floorings fix the two.
Preferably, the lower part of the steel pipe connect and communicates with grout pipe, and the top of the steel pipe is provided with and extraneous phase Logical dew starches hole.
Preferably, the UHPC prefabricated panel trestles being suitable under strong corrosive environment, further include multiple reinforcing plates;It is multiple The reinforcing plate is welded on the outer wall of pile foundation along the axis direction of pile foundation;Multiple horizontal perforations are evenly arranged in the reinforcing plate Grout hole.
The utility model includes at least following advantageous effect:
UHPC prefabricated panel trestles provided by the utility model suitable under strong corrosive environment use the sky in support construction Between steel pipe truss structures and corrosion resistant novel UHPC panel systems, adopted between the steel pipe and pile foundation of the lower part of precast truss frame structure Connected with grouting liquid, structure can precast assembly, the step of eliminating site welding, the assembled process of entire trestle it is simple and convenient and Fast, and floorings can resist the corrosion such as villaumite using novel UHPC high-performance panels material, and UHPC panels can expire Sufficient trestle rapid construction simultaneously can meet the requirement under severe environmental conditions;This kind of assembling method can meet adverse circumstances item Part, but energy rapid construction, environment-friendly high-efficiency are with good economic efficiency.
Part is illustrated to embody by the further advantage, target and feature of the utility model by following, and part will also pass through Research and practice to the utility model and be understood by the person skilled in the art.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the connection relationship diagram of pile foundation described in the utility model and steel pipe;
Fig. 3 is the connection relationship diagram of floorings described in the utility model and steel platform beam;
Fig. 4 is the connection relationship diagram of the junction of adjacent segment UHPC floorings described in the utility model;
Fig. 5 is pile foundation described in the utility model and reinforcing plate annexation figure.
Specific implementation mode
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art with reference to explanation Book word can be implemented according to this.
In the description of the present invention, term " transverse direction ", " longitudinal direction ", "upper", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom", "inner", "outside" be orientation based on ... shown in the drawings or Position relationship is merely for convenience of describing the present invention and simplifying the description, and is not the device or member of instruction or hint meaning Part must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
As shown in Figs. 1-5, the utility model provides a kind of UHPC prefabricated panel trestles suitable under strong corrosive environment, packet It includes:Pile foundation 1, is fixed on supporting course or less vertically;Bracket 2 is supported, support plate horizontal abutment and is fixed on the pile foundation 1 Outer wall one encloses;Precast truss frame structure comprising the steel pipe 4 of lower part and the holder 3 on top;It is hollow in the lower end of the steel pipe 4, institute The lower end for stating steel pipe 4 is set in 1 upper end of the pile foundation and is against in the support plate of the support bracket 2, the steel pipe 4 and pile foundation Grouting liquid 14 is full of between gap between 1;Steel platform beam 5, along vertical bridge to being arranged at intervals on the holder 3;Floorings 6, Its level is erected at the upper surface of the steel platform beam 5.The steel pipe 4 is connect with pile foundation 1 by grouting liquid 14, the construction method It is simple and fast, eliminate complicated welding step.Steel platform beam 5 is made of I-steel or channel steel.Steel platform beam 5 is used to support bridge Panel 6.The support plate of the steel pipe and support bracket is realized by foaming agent or other modes to be seamlessly connected, and avoids leaking when grouting Grouting liquid.Precast truss frame structure it is whole across in erection process, the grouting that scene only needs to carry out between steel pipe and pile foundation connects, greatly Fast speed of application.In civil engineering structure design, in Base foundation design, the soil layer for directly bearing foundation load is known as holding Power layer.The lower end of pile foundation is fixed on supporting course.
The floorings 6 are prefabricated U HPC floorings 15.It is a variety of that prefabricated U HPC floorings 15 have that corrosion-resistant, intensity is big etc. Advantage.
It is fixedly connected by multiple vertical U-bolts 7 between the floorings 6 and steel platform beam 5.Floorings 6 are flat with steel It is attached using dismountable U-bolt 7 between platform beam 5, while intensity reaches requirement, eliminates complicated welding step Suddenly.
The prefabricated U HPC floorings 15 include it is multiple along vertical bridge to segment UHPC floorings, adjacent segment UHPC bridges The upper surface of the junction of panel, which is invaginated, forms panel groove 8, and the bottom surface of the panel groove 8, which is bonded, is provided with steel plate 9, and one Steel plate 9 is sequentially passed through downwards to bolt 10 and adjacent segment UHPC floorings fix the two.
The plate thickness 12cm or so of prefabricated U HPC floorings 15 indulges bridge to small segment is divided into along trestle, 2~3m is grown per segment, It is molded in precasting yard.Unlike general panels, this prefabricated U HPC floorings 15 need to reserve 8 knead dough of groove of lateral connection The bolt hole that plate is connect with steel platform, connection key constructs are as shown in Figure 3-4, and prefabricated U HPC floorings 15 are along vertical bridge to dividing trifle Section installation, precast segment UHPC floorings 15 are quickly connect with steel platform beam 5 by U-bolt 7;Then by being laid with steel between segment Plate 9 connects the adjacent segment UHPC floorings in both sides in the groove 8 that prefabricated U HPC floorings 15 are reserved by bolt 10.It is whole A installation phase is not necessarily to concrete cast-in-situ and welding sequence, greatly improves construction efficiency.
The lower part of the steel pipe 4 connect and communicates with grout pipe 11, and the top of the steel pipe 4, which is provided with, to be communicated with the external world Dew slurry hole 12.Grouting liquid 14 is perfused toward the space between pile foundation 1 and steel pipe 4 by grout pipe 11, observing slurries in dew slurry hole 12 is No grouting is in place.
The UHPC prefabricated panel trestles being suitable under strong corrosive environment, further include multiple reinforcing plates 13;It is multiple described Reinforcing plate 13 is welded on the outer wall of pile foundation 1 along the axis direction of pile foundation 1;Multiple levels are evenly arranged in the reinforcing plate 13 to pass through Logical grout hole 16.Reinforcing plate 13 reinforces the connection relation between pile foundation and steel pipe 4.
The assembling method of the UHPC prefabricated panel trestles being suitable under strong corrosive environment, includes the following steps:S1 is beaten Firm pile foundation 1, the welding support bracket 2 in pile foundation 1;S2, it is precast truss frame structure is prefabricated and to be transported to construction site whole across lifting, in advance The steel pipe 4 of the lower part of truss structure processed is inserted in 1 upper end of pile foundation, and temporary support will support bracket 2 and steel on support bracket 2 4 spot welding of pipe is reinforced;S3, is in the milk by grout pipe 11 to the gap between steel pipe 4 and pile foundation 1, and starching hole 12 by dew observes grouting Stop grouting afterwards in place;S4 installs the steel for distributing 15 stress of prefabricated U HPC floorings at assembled scene by lifting appliance Landing beam 5;S5, hoisting prefabricated UHPC floorings 15 are consolidated the two by multiple vertical U-bolts 7 on steel platform beam 5 It is fixed.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art, Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality It is not limited to specific details and legend shown and described herein with novel.

Claims (6)

1. a kind of UHPC prefabricated panel trestles suitable under strong corrosive environment, which is characterized in that including:
Pile foundation is fixed on supporting course or less vertically;
Support bracket, support plate horizontal abutment and the circle of outer wall one for being fixed on the pile foundation;
Precast truss frame structure comprising the steel pipe of lower part and the holder on top;It is hollow in the lower end of the steel pipe, the steel pipe Lower end is set in the pile foundation upper end and is against in the support plate of the support bracket, is filled between the gap between the steel pipe and pile foundation Full irrigation slurries;
Steel platform beam, along vertical bridge to being arranged at intervals on the holder;
Floorings, level are erected at the upper surface of the steel platform beam.
2. as described in claim 1 suitable for the UHPC prefabricated panel trestles under strong corrosive environment, which is characterized in that the bridge floor Plate is prefabricated U HPC floorings.
3. as described in claim 1 suitable for the UHPC prefabricated panel trestles under strong corrosive environment, which is characterized in that the bridge floor It is fixedly connected by multiple vertical U-bolts between plate and steel platform beam.
4. as claimed in claim 2 suitable for the UHPC prefabricated panel trestles under strong corrosive environment, which is characterized in that described prefabricated UHPC floorings include it is multiple along vertical bridge to segment UHPC floorings, the upper table of the junction of adjacent segment UHPC floorings Face, which is invaginated, forms panel groove, and the bottom surface fitting of the panel groove is provided with steel plate, and a pair of bolts sequentially passes through downwards steel Plate and adjacent segment UHPC floorings fix the two.
5. as claimed in claim 4 suitable for the UHPC prefabricated panel trestles under strong corrosive environment, which is characterized in that the steel pipe Lower part connect and communicate with grout pipe, the top of the steel pipe is provided with and the extraneous dew slurry hole communicated.
6. as described in claim 1 suitable for the UHPC prefabricated panel trestles under strong corrosive environment, which is characterized in that further include more A reinforcing plate;Multiple reinforcing plates are welded on the outer wall of pile foundation along the axis direction of pile foundation;It is uniformly arranged in the reinforcing plate There is the grout hole of multiple horizontal perforations.
CN201820262181.9U 2018-02-22 2018-02-22 Suitable for the UHPC prefabricated panel trestles under strong corrosive environment Active CN208039004U (en)

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CN201820262181.9U CN208039004U (en) 2018-02-22 2018-02-22 Suitable for the UHPC prefabricated panel trestles under strong corrosive environment

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Application Number Priority Date Filing Date Title
CN201820262181.9U CN208039004U (en) 2018-02-22 2018-02-22 Suitable for the UHPC prefabricated panel trestles under strong corrosive environment

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108411764A (en) * 2018-02-22 2018-08-17 中交第二航务工程局有限公司 Suitable for the UHPC prefabricated panels trestle and assembling method under strong corrosive environment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108411764A (en) * 2018-02-22 2018-08-17 中交第二航务工程局有限公司 Suitable for the UHPC prefabricated panels trestle and assembling method under strong corrosive environment

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