Bolt-connected prefabricated segment shear-resistant assembly concrete pier

Abstract

The invention relates to a bolt-connected prefabricated segment shear-resistant assembly concrete pier which comprises a plurality of prefabricated rectangular concrete segments, a cast-in-place bearing platform, a prestressed steel strand and an anchorage device, wherein segment splicing position connecting devices are respectively arranged at the upper rend and the lower end of each of the segments, each of the segment splicing position connecting devices comprises a pressure-bearing steel plate and a vertical opening steel plate, eight small holes are reserved in the circumference of the pressure-bearing steel plate, and the adjacent segments are connected with each other through bolts; the upper part of the cast-in-place bearing platform extends out of the one small segment encrypted by a stirrup, the segment splicing position connecting device is arranged at the upper part extending out of the one small segment and can be connected with the lowermost surface of the prefabricated rectangular concrete segment; the prestressed steel strand penetrates through the prefabricated rectangular concrete segments and the cast-in-place bearing platform from top to bottom; the anchorage device is arranged at the bottom of the cast-in-place bearing platform and anchors the prestressed steel strand extending out of the cast-in-place bearing platform. The bolt-connected prefabricated segment shear-resistant assembly concrete pier provided by the invention has the benefits that the self-reset performance is improved by the prestressed steel strand; and meanwhile, the shear resistance of the prefabricated segment assembly bridge pier is improved by the connecting bolts, and the factory production is facilitated; the site construction procedure is reduced, so that the construction efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, in particular to a bolt-connected prefabricated segmental shear-resistant assembled concrete pier. Background technique [0002] With the rapid development of urban traffic, people are increasingly calling for high-quality bridge construction, short construction period, and reducing disturbance to surrounding traffic and construction noise. It is against this background that segmental prefabricated piers come into use. And born. Segmental prefabricated assembled bridge piers have the advantages of fast construction speed and less impact on traffic, and can be factory-produced and assembled in construction, thus providing a reliable guarantee for the construction speed and construction quality of bridge piers. [0003] Segmental prefabricated assembled bridge piers are still in their infancy in my country. Although they have the characteristics of high construction efficiency and good ...

AI Technical Summary

Problems solved by technology

[0003] Segmental prefabricated assembled bridge piers are still in their infancy in my country. Although they have the characteristics of high construction efficiency and good quality prefabricated components, the seismic performance of segmental prefabricated assembled bridge piers has not been fully grasped. Compared with integral cast-in-place piers, There are still many deficiencies, such as the weak point at the connection of segmental piers, and the shear performance of segmental joints is particularly weak, etc.

[0004] At present, the forms and connection devices of most prefabricated segmental assembled piers have disadvantages such as complex construction technology and large amount of on-site construction work. Therefore, in view of the above problems, a new connection method with good shear resistance and high self-resetting ability is still needed

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