Construction platform for hoisting bridge seismic steel stop block and mounting method
A technology of construction platform and installation method, which is applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of high labor intensity, high cost, and slow installation speed, so as to reduce labor intensity, facilitate operation, and improve work efficiency Effect
Active Publication Date: 2018-11-06
CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD +1
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Problems solved by technology
[0005] The purpose of the present invention is to overcome the disadvantages of slow installation speed, high labor intensity and high cost of the existing bridge anti-seismic steel block and provide a simple and fast bridge anti-seismic steel block that directly transports the anti-seismic steel block to the groove of the bridge pier Hoisting construction platform and installation method
Method used
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Embodiment
[0032] Example: An installation case of anti-seismic steel stoppers for box girders with corrugated steel webs from Qunan Road to West Fourth Ring Road in Longhai Expressway Project
[0033] 1. Project overview:
[0034] Zhengzhou Longhai Expressway Project Qunan Road to West Fourth Ring Corrugated Steel Web Box Girder Anti-vibration Steel Blocks are welded by three types of steel plates N1×1+N2×2+N3×5, with a total weight of 1.039t, the largest Geometric dimensions length × width × height = 1460mm × 1460mm × 960mm. The clear space distance between the stop block and the two sides of the pier groove in the transverse direction is 200mm, and the clear space distance from the bottom is 100mm. The operable space width×height of bridge 1# and 2# bearing pads is about 1.6m×0.8m. If the construction of the stopper adopts a single-piece installation and then welding assembly process, a large number of overhead welding operations need to be completed. Due to the limitation of the ins...
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The invention relates to a construction platform for hoisting a bridge seismic steel stop block and a mounting method. The mounting method comprises the steps of mounting a construction platform on atruck crane big arm, wherein one end of a bottom plate of the construction platform is hinged with a pin hole in one end of an end steel plate at the top end of the truck crane big arm, and the otherend of the bottom plate of the construction platform is connected with the other end of the end steel plate through a screw sleeve structure; moving the construction platform to the ground by using the truck crane big arm and then moving a seismic stop block from an opened operation door to the bottom plate of the construction platform; making the truck crane big arm rise to the top of a bridge pier of the seismic stop block; enabling a locating plate stick to the plane of a pier top groove to realize locating; enabling a lapping plate to be lapped on the pier top; enabling one end of the construction platform to move upwards under the adjusting of the screw sleeve structure; sliding the seismic stop block into the pier top groove; adjusting an aligning bolt for the seismic stop block andan embedded steel plate; pressing the seismic stop block by using the bolt; and finishing the mounting of the seismic stop block. According to the construction platform for hoisting the bridge seismicsteel stop block and the mounting method, the seismic stop block is simply, rapidly and directly conveyed into the bridge pier groove.
Description
technical field [0001] The invention relates to the field of bridge viaduct erection, in particular to a construction platform and an installation method for hoisting anti-seismic steel block blocks of bridges. Background technique [0002] The anti-seismic steel block of the bridge is mainly used to limit the lateral displacement of the superstructure of the bridge. The transverse block (or shear key) is usually set on the cover beam or the abutment. The relevant specifications divide the block into internal block and external block. , the internal stopper usually goes deep into the beam body or between the beams from the abutment, the external stopper is usually placed on both sides of the superstructure, and the wing wall of the abutment is usually used as the external stopper. Under the action of an earthquake, the block not only serves as a lateral limit and prevents beams from falling, but also protects the seismic safety of the support. The existing anti-vibration st...
Claims
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IPC IPC(8): E01D21/00
CPCE01D21/00Y02A30/30
Inventor 陈敦刚肖芳史国亮
Owner CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD