A six-direction displacement comb tooth plate telescopic device

Abstract

The invention discloses a six-direction deflection comb plate retractor device. The six-direction deflection comb plate retractor device is characterized in that five-direction deflection support sets are fixedly arranged at the rear end of a movable comb plate, the bottom face of the front end of the movable comb plate is provided with sliding grooves and steel pins, and the five-direction deflection support sets are two elastic support bodies which are arranged on an anchor plate and both consist of teflon plate rubber bases, steel channels and teflon sliding plates; the steel channels are provided with axial sliding grooves, and the two steel channels are buckled on the anchor plate and welded with the anchor plate. Compared with the prior art, the six-direction deflection comb plate retractor device has the three-dimensional deformation functions of planar rotation, vertical rotation and transverse displacement, various deformation requirements during everyday operation can be met, and the requirement for longitudinal and transverse extremely-large displacement deformation generated by bridges during an earthquake can be met as well. The device is simple in structure, convenient to construct and mount, high in shock absorption capacity, low in noise and particularly suitable for high-grade highway bridges, viaduct bridges and extremely-long flexible bridges.

Description

technical field [0001] The invention relates to a bridge expansion joint device, in particular to a six-direction displacement comb tooth plate expansion device. Background technique [0002] Nowadays, all parts of the world are in a period of frequent earthquakes. Earthquakes have caused great harm to the people, which has prompted people to enhance their understanding of earthquake fortifications. Bridge buildings are also actively developing and adopting fortification measures. To set up an anti-shock structure, specifically the comb-tooth plate telescopic device must add a lateral displacement mechanism, so that it can still continue to work after an earthquake occurs. At present, there are very few types of comb-tooth plate telescopic devices with anti-seismic performance, and the products are not perfect enough, so that the shock-proof structure of the comb-tooth plate telescopic devices has attracted people's attention. Research shows that the special structure of th...

AI Technical Summary

Problems solved by technology

At present, there are very few types of comb-tooth plate expansion devices with anti-seismic performance, and the products are not perfect, so that the shock-proof structure of comb-tooth plate expansion devices has attracted people's attention

According to the study, the special structure of the expansion device has the function of lateral displacement, so that the expansion joint can still work normally after a strong earthquake, but the technical difficulty is high, and the manufacturing and installation costs are high, which is not reasonable

However, the unit type multi-directional displacement comb plate telescopic device of the prior art uses bolts to connect the movable comb plate with the beam body. When an earthquake occurs, the anchor bolts are allowed to be sheared and repaired after the earthquake. As we all know, the bolts after shearing The repair work is very complicated and heavy, which is equivalent to reinstalling the comb plate, replanting anchor bolts, and re-pouring concrete, and the repair cost is also very expensive

[0003] The prior art anti-seismic comb-tooth plate telescopic device has defects such as complex structure, great difficulty in manufacture and installation, high maintenance cost, low structural safety strength and short service life, and cannot meet the requirements of the construction of highways and urban viaducts in our country. development needs

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