CN207919363U - A kind of Filled Steel Tubular Arch Bridge low level assembly lifting system - Google Patents

A kind of Filled Steel Tubular Arch Bridge low level assembly lifting system Download PDF

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Publication number
CN207919363U
CN207919363U CN201721820329.8U CN201721820329U CN207919363U CN 207919363 U CN207919363 U CN 207919363U CN 201721820329 U CN201721820329 U CN 201721820329U CN 207919363 U CN207919363 U CN 207919363U
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CN
China
Prior art keywords
arch rib
bridge
sides
span
arch
Prior art date
Application number
CN201721820329.8U
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Chinese (zh)
Inventor
周文
冯朝军
张启桥
代勋山
陈成杰
吕文熙
张应红
郭俊雅
施建
董继林
李俊霖
Original Assignee
中铁广州工程局集团有限公司
中铁广州工程局集团桥梁工程有限公司
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Application filed by 中铁广州工程局集团有限公司, 中铁广州工程局集团桥梁工程有限公司 filed Critical 中铁广州工程局集团有限公司
Priority to CN201721820329.8U priority Critical patent/CN207919363U/en
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Publication of CN207919363U publication Critical patent/CN207919363U/en

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Abstract

The utility model discloses a kind of Filled Steel Tubular Arch Bridge low level assembly lifting systems,Including temporary trestle bridge,Arch rib mounting bracket in temporary trestle bridge both sides is set,And the arch rib lifting bracket above temporary trestle bridge,It further include the promotion pylon for being separately positioned on temporary trestle bridge both sides,Both sides are connected between promoting tower top by pressure tower cable,Both sides promote tower top and the fixed cable hinged with earth anchor are also respectively connected,Both sides promote tower top and are also associated with the promotion cable being connected with the middle span arch rib of lower section,Middle span arch rib uses low level mounting means by arch rib lifting bracket,End bay section arch rib carries out installation in situ by arch rib mounting bracket,Middle span arch rib is overall increased into precalculated position by promoting pylon again,Carry out closure construction,The difficulty of construction of bridge arch rib can be significantly reduced,And,Middle span arch rib is whole promoted,Construction period can be shortened,It is guaranteed but also middle span arch rib closes up precision with end bay section arch rib.

Description

A kind of Filled Steel Tubular Arch Bridge low level assembly lifting system
Technical field
The present invention relates to technical field of bridge construction, more particularly to a kind of Filled Steel Tubular Arch Bridge low level assembly is promoted System.
Background technology
Currently, existing Filled Steel Tubular Arch Bridge installation mainly has Support Method, cable hoisting cantilever method, rotator construction The modes such as method.(1) Support Method is suitable for the arch bridge of small across footpath, usually not high from the ground in arch rib, and anhydrous under bridge or water level is not deep, The preferable situation of execution conditions uses.This method be exactly first by the assembled good holder of the arching line style of steel tube arch rib at bridge location, Segmented welding arching in place on holder.Advantage is that arch rib section length is little, is not necessarily to Large-scale Hoisting equipment, and arch rib line style is easy Control.(2) erection with cableway is suitable for crossing over mountain valley, and long-span steel pipe arch bridge on great rivers, the method is hung using cable crane Dress ability, arch rib is segmented prefabricated, is respectively symmetrically lifted from arch springing to span centre, one section is often installed, using steel wire rope or steel strand wires It carries out on Inclined cable-stayed pylon, the live pre-splicing place of arch rib installation settings.The method advantage is the assembly of no holder, but installation period Longer, construction precision is more difficult to control.(3) the construction by swing scope of application is similar with cable crane installation, is divided into flat turn, vertical transfer and group Rotating manner is closed, arch rib is generally divided into two symmetrical half across utilizing actual landform or bridge in bridge construction scene both sides respectively Arch rib mounting bracket is first carried out on axis, then starts assembled arch rib, and turntable or flexural pivot are set at arch springing and turn arch rib level Extremely or vertically design position is gone to carry out closing up mode.
For above-mentioned arch rib installation method, there are associated disadvantages:(1) Support Method is not suitable for the arch bridge of Long span and applies Work is also not suitable for the Arch Bridge Construction for having water or deep water under bridge.(2) cable hoisting cantilever method is not suitable for plains region or foundation Bad flat country, while arch rib assembly axis precision controlling is difficult, construction safety control will since cable crane installation one Directly continueing to arch rib, installation is complete, and construction safety construction risk is high.(3) construction by swing need install rotation system, button tower, after Anchorage and assembling support etc. need the ground in larger assembled place and suitable rear anchorage construction, rotator construction security risk It is high.
Invention content
Technical problem to be solved by the invention is to provide a kind of short construction period, safe and reliable CFST Arch Bridges Arch rib low level assembly lifting system.
Used technical solution to solve above-mentioned technical problem:A kind of Filled Steel Tubular Arch Bridge low level assembly promotion System, including temporary trestle bridge, arch rib mounting bracket in temporary trestle bridge both sides is set, and the arch rib above temporary trestle bridge carries Ascending branch frame, further includes the promotion pylon for being separately positioned on temporary trestle bridge both sides, is promoted described in both sides and passes through pressure between tower top Tower cable is connected, and tower top is promoted described in both sides, the fixed cable hinged with earth anchor is also respectively connected, the arch rib is promoted Holder support has the middle span arch rib that live low level assembly is formed by welding, the arch rib mounting bracket support to have live in situ assembled The end bay section arch rib being formed by welding, tower top is promoted described in both sides is also associated with and carried with what the middle span arch rib of lower section was connected Rise cable.
Further, it is connected by tensioning cable between middle two side bottom of span arch rib.
Advantageous effect:In this Filled Steel Tubular Arch Bridge low level assembly lifting system, middle span arch rib is carried by arch rib Ascending branch frame uses low level mounting means, end bay section arch rib to carry out installation in situ by arch rib mounting bracket, then by promoting pylon Middle span arch rib is overall increased into precalculated position, carries out closure construction, the construction that can significantly reduce bridge arch rib is difficult Degree can shorten construction period moreover, middle span arch rib is whole promotion, but also middle span arch rib is closed with end bay section arch rib Hold together precision to be guaranteed.
Description of the drawings
The present invention is described further with reference to the accompanying drawings and examples;
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Specific implementation mode
Referring to Fig.1, a kind of Filled Steel Tubular Arch Bridge low level assembly lifting system of the utility model, including temporary trestle bridge 10, arch rib mounting bracket 20 in 10 both sides of temporary trestle bridge, and the arch rib lifting bracket 30 above temporary trestle bridge are set.Its In, temporary trestle bridge 10 is installed the operating platform as arch rib lifting bracket 30, while being also to facilitate dealing construction personnel and vehicle logical Row.20 support of arch rib mounting bracket has the end bay section arch rib 40 that live assembly in situ is formed by welding, 30 support of arch rib lifting bracket There are the middle span arch rib 50 that live low level assembly is formed by welding, middle span arch rib 50 to form one by multiple stage arch rib in-site installations Body, arch rib mounting bracket 20 are that middle span arch rib 50 provides support.
It is arranged in 10 both sides of temporary trestle bridge and promotes pylon 60, by pressing 61 phase of tower cable between 60 top of both sides promotion pylon Even, both sides promote 60 top of pylon and the fixed cable 62 hinged with earth anchor are also respectively connected, and both sides promote 60 top of pylon also It is connected with the promotion cable 63 being connected with the middle span arch rib 50 of lower section, after installation is complete for the middle span arch rib 50 of lower section, The whole of span arch rib 50 during cable 63 carries out that promoted by promoting pylon 60 is promoted, after being promoted to precalculated position, end bay section Arch rib 40 carries out closure construction operation with middle span arch rib 50.
Preferably, being connected by tensioning cable 51 between 50 liang of side bottoms of middle span arch rib, tensioning cable 51 is in Span arch rib 50 promotes situation and gradually applies inside horizontal pull to reduce change of arch costal shape.
The utility model has the following advantages relative to traditional arch rib mounting means:Middle span arch rib 50 is pacified using low level Dress, then whole promoted carry out closing up job execution with end bay section arch rib 40, and the construction that can significantly reduce bridge arch rib is difficult Degree can shorten construction period moreover, middle span arch rib is whole promotion, but also middle span arch rib is closed with end bay section arch rib Hold together precision to be guaranteed.
In addition, span arch rib 50 in being installed by 30 low level of arch rib lifting bracket, it is easier to control arch rib installation line style, greatly Big raising construction and installation precision and welding quality, live arch rib Installation Elevation and plan-position deviation are satisfied by concrete filled steel tube concrete Construction inspection rules requirement, while eliminating large-tonnage loop wheel machine and marching into the arena and the expense of large-tonnage trestle.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned embodiment party Formula, the technical field those of ordinary skill within the scope of knowledge, can also be before not departing from present inventive concept Put that various changes can be made.

Claims (2)

1. a kind of Filled Steel Tubular Arch Bridge low level assembly lifting system, it is characterised in that:Facing including temporary trestle bridge, setting When trestle both sides arch rib mounting bracket, and the arch rib lifting bracket above temporary trestle bridge further includes being separately positioned on to face When trestle both sides promotion pylon, promoted described in both sides between tower top by pressing tower cable to be connected, tower promoted described in both sides The fixed cable hinged with earth anchor is also respectively connected in top of the trellis, and the arch rib lifting bracket support has live low level assembly to weld The middle span arch rib constituted, the arch rib mounting bracket support have the end bay section arch rib that live assembly in situ is formed by welding, both sides The promotion tower top is also associated with the promotion cable being connected with the middle span arch rib of lower section.
2. Filled Steel Tubular Arch Bridge low level assembly lifting system according to claim 1, it is characterised in that:In described It is connected by tensioning cable between two side bottom of span arch rib.
CN201721820329.8U 2017-12-21 2017-12-21 A kind of Filled Steel Tubular Arch Bridge low level assembly lifting system CN207919363U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721820329.8U CN207919363U (en) 2017-12-21 2017-12-21 A kind of Filled Steel Tubular Arch Bridge low level assembly lifting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721820329.8U CN207919363U (en) 2017-12-21 2017-12-21 A kind of Filled Steel Tubular Arch Bridge low level assembly lifting system

Publications (1)

Publication Number Publication Date
CN207919363U true CN207919363U (en) 2018-09-28

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CN201721820329.8U CN207919363U (en) 2017-12-21 2017-12-21 A kind of Filled Steel Tubular Arch Bridge low level assembly lifting system

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CN (1) CN207919363U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109914266A (en) * 2019-04-17 2019-06-21 中交路桥建设有限公司 A kind of Large Steel pipeline overhead lifting vertical shift and promote construction method of installation
CN110777667A (en) * 2019-11-14 2020-02-11 中铁八局集团有限公司 Hoisting method for preventing deformation of steel pipe arch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109914266A (en) * 2019-04-17 2019-06-21 中交路桥建设有限公司 A kind of Large Steel pipeline overhead lifting vertical shift and promote construction method of installation
CN109914266B (en) * 2019-04-17 2020-07-10 中交路桥建设有限公司 Construction method for longitudinally moving and lifting installation of large steel pipe arch
CN110777667A (en) * 2019-11-14 2020-02-11 中铁八局集团有限公司 Hoisting method for preventing deformation of steel pipe arch

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