A construction technology of prefabricated and assembled beams of suspension bridges
A construction process and prefabricated assembly technology, applied in bridges, bridge construction, bridge parts, etc., can solve the problems of long construction period, high risk of template high-altitude construction and high construction cost, and achieve short construction period, fast construction speed, and high construction efficiency. low cost effect
Active Publication Date: 2021-06-15
GUIZHOU HIGHWAY ENG GRP
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Problems solved by technology
The traditional suspension bridge beam construction is to build the formwork and pour the beam at the design position of the beam after the tower column is poured to a certain height. With the improvement of the expressway network in Guizhou Province and the needs of expansion construction in various cities and prefectures, the construction of transportation infrastructure in the province is still in a trend of rapid development. Therefore, if the innovation ability of suspension bridge construction technology can be improved, construction risks can be reduced, and the construction period can be shortened. Reducing construction costs is of great significance to the development of enterprises and the construction of expressway network
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Embodiment Construction
[0034] The present invention will be further described below in conjunction with the examples, but not as a basis for limiting the present invention.
[0035] Embodiments of the invention
[0036] Practical example of the process of the invention:
[0037] Implementation project: Guizhou Fenglin Bridge
[0038] The specific implementation process, the steps are as follows:
[0039] 1) Installation of overhanging work platform: Weld corbels on the embedded parts on the outside of the lower beam, and erect a distribution beam every 500mm on the corbels, and lay bamboo plywood on the distribution beams to form an overhanging work platform;
[0040] 2) Guardrail installation: install a 1.6m-high guardrail on the periphery of the overhanging work platform, a channel is reserved at the connection between the guardrail and the tower column, and a protective net is installed around the guardrail;
[0041] 3) Reciprocating ladder installation: install a reciprocating ladder at one o...
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The invention discloses a prefabricated and assembled construction process for a suspension bridge crossbeam. The lower crossbeam is used as an operating platform, the upper crossbeam is prefabricated, and the prefabricated crossbeam is lifted to a set position by a lifting system arranged above the upper crossbeam for assembly. The construction technology of the invention has the characteristics of small operation risk, short construction period and low construction cost.
Description
technical field [0001] The invention relates to a construction technique for a suspension bridge beam, in particular to a construction technique for prefabricating and assembling a suspension bridge beam. Background technique [0002] Suspension bridge, also known as suspension bridge (suspensionbridge), refers to a bridge that uses cables (or steel chains) suspended through towers and anchored on both banks (or both ends of the bridge) as the main load-bearing components of the upper structure. Its cable geometry is determined by the balance of forces and is generally close to a parabola. Many suspenders hang from the cables to hang the bridge deck. Stiffening beams are often set between the bridge deck and the suspenders to form a combined system with the cables to reduce the deflection and deformation caused by the load. [0003] The beam of the suspension bridge refers to the middle beam used to support the tower columns on both sides between the tower columns, and is a...
Claims
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IPC IPC(8): E01D21/00E01D19/14
CPCE01D19/14E01D21/00
Inventor 陈进吴哨兵项海燕学新段武兵候云江赵明富王在军张小付
Owner GUIZHOU HIGHWAY ENG GRP