Construction method, hoisting tool, location tire and location support for installing comb-tooth-shaped expansion joint
A construction method and technology of expansion joints, applied in the direction of bridge parts, bridges, buildings, etc., can solve the problems of slow construction speed, poor flatness, car jumping, etc., and achieve the effect of improving construction efficiency, improving work efficiency and accurate location.
Active Publication Date: 2015-07-15
JINAN URBAN CONSTR GRP
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Problems solved by technology
[0002] The viaduct project adopts hot-rolled integrally formed comb-shaped bridge expansion joints. The construction speed is slow, the flatness is poor, and settlement, water seepage, vehicle jumping and abnormal noise often occur
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Embodiment Construction
[0015] Accompanying drawing is a kind of specific embodiment of the present invention.
[0016] The construction method for installing comb-toothed expansion joints of the present invention includes the following steps: construction preparation → breaking asphalt → processing anchor bolt groups → installing anchor bolt groups → supporting inner formwork → pouring commercial concrete under the comb-tooth plate → comb-tooth plate installation ( Waterproof rubber belt, stainless steel plate) → pouring commercial concrete on both sides of the comb plate → maintenance → inspection and acceptance.
[0017] technical indicators : The height difference between the expansion joint and the road surface is ≤2mm, and the height difference between adjacent comb plates is ≤2mm. There is no looseness, cracks, settlement, or water seepage around the expansion joints, and there is no jumping or abnormal noise when driving.
[0018] Construction preparation
[0019] 1) Check whether the q...
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The invention relates to a construction method for installing a comb-tooth-shaped expansion joint. The construction method is characterized by comprising the following steps of conducting construction preparation-conducting pitch removal-machining an anchor bolt group-installing the anchor bolt group-erecting an inner template-pouring concrete below a comb plate-installing the comb plate-pouring the concrete on two sides of the comb plate-maintaining-conducting acceptance checks. A movable type lifting tool comprises a frame installed on a traveling wheel, the front end of the frame is connected with a strong electromagnet controlled by a positive and negative switch through a lifting rope, and the strong electromagnet can adsorb and carry the comb plate with a smooth surface. Compared with a traditional process, the construction method can effectively solve quality defects such as expansion joint cracking, sedimentation, water seepage, tripping while traveling and abnormal sounds, simultaneously improves work efficiency and shortens a construction period. The construction method has good social benefits and economic benefits, has wide application spaces in an installing project of the comb-tooth expansion joint and has promotional values.
Description
technical field [0001] The invention belongs to the construction field, and relates to a construction method for installing a comb-toothed expansion joint, a hoisting tool, a positioning tire, and a positioning frame, and is suitable for the construction of a comb-toothed expansion joint in an urban bridge. Background technique [0002] The viaduct project adopts hot-rolled integrally formed comb-shaped bridge expansion joints. The construction speed is slow, the flatness is poor, and settlement, water seepage, vehicle jumping and abnormal noise often occur. Contents of the invention [0003] In order to make up for the deficiencies of the prior art, the present invention provides a construction method for installing comb-toothed expansion joints, a hoisting tool, a positioning tire, and a positioning frame that shortens the construction period and overcomes common quality problems. [0004] The present invention is achieved through the following technical solutions: ...
Claims
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IPC IPC(8): E01D19/06
Inventor 孙万臣王辉尹贻超金东杰
Owner JINAN URBAN CONSTR GRP