Splicing structure and splicing method of prefabricated bridge piers and prefabricated bearing platform

Abstract

The invention provides a splicing structure and a splicing method of prefabricated bridge piers and a prefabricated bearing platform. By utilizing the joggling of hollow steel tubes in first concave grooves in the bottoms of the prefabricated bridge piers and concrete filled steel tube tenons enclosed by the inner walls of annular grooves in the top of the prefabricated bearing platform, on one hand, favorable positioning effects are achieved for the mounting, on the bearing platform, of the prefabricated bridge piers, and on the other hand, the shear capacity and the flexural capacity at splicing positions are improved; post-poured concrete is poured into the annular grooves to enwrap the splicing positions of the prefabricated bridge piers and the prefabricated bearing platform; the prefabricated bridge piers and the prefabricated bearing platform are connected into a whole; an overall stress structure is ameliorated; the splicing strength of the prefabricated bride piers and the prefabricated bearing platform is greatly improved, and is not less than the strength of a cast-in-place bridge pier. By adopting a way of splicing the prefabricated bride piers and the prefabricated bearing platform, the field pouring workload of concrete is effectively reduced; the field operation is facilitated; a road is not occupied; influences on an urban traffic environment during the operation are effectively relieved, and meanwhile, a construction period of a bridge is shortened.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a splicing structure and splicing method of a prefabricated bridge pier and a prefabricated cap. Background technique [0002] At present, most of the round piers of highway bridges in my country are cast-in-place, and cast-in-place bridges have at least the following defects: 1. The construction period is too long, and they are easily affected by the weather and natural environment; 2. The existing roads are occupied during construction, which aggravates traffic jams; 3. , The quality of cast-in-place is not easy to guarantee, and the construction quality is affected by the overall quality of workers. In order to realize the industrialized manufacturing and rapid assembly of bridge piers, it is necessary to develop a new technology so that the design performance of the connection between prefabricated pier columns and between prefabricated pier columns and caps can rea...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the round piers of highway bridges in our country are cast-in-place, and the cast-in-place bridges have at least the following defects: 1. The construction period is too long, and they are easily affected by the weather and natural environment; 2. The existing roads are occupied during construction, which aggravates traffic jams; , The quality of cast-in-place is not easy to guarantee, and the construction quality is affected by the overall quality of workers

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