T-beam prefabricated pedestal and construction method thereof

Abstract

The invention provides a T-beam prefabricated pedestal and a construction method of the T-beam prefabricated pedestal. The T-beam prefabricated pedestal comprises a pedestal foundation and multiple pedestals located on the top of the pedestal foundation. The multiple pedestals are arranged in parallel in the length direction of a pedestal foundation site at intervals, ground beams are arranged in the portions, located at the bottoms of the two ends of each pedestal, of the pedestal foundation, the top surfaces of the ground beams are flush with the top surface of the pedestal foundation, the two ends of each ground beam extend out of the corresponding pedestal, and the length direction of each ground beam is perpendicular to the length direction of the corresponding pedestal. According to the T-beam prefabricated pedestal and the construction method of the T-beam prefabricated pedestal, the corresponding ground beams with a certain area are poured in the portions, located at the bottoms of the two ends of each pedestal, of the pedestal foundation, the high-strength pressure stress can be applied to the two ends of each pedestal when a T-beam arches upwards in the pre-stress tensioning process, the pressure stress applied to the ground beams by the pedestals can be transmitted to the pedestal foundation in a large area through the ground beams arranged on the bottom surfaces of the pedestals, and therefore the force on the bottom surfaces of the pedestals can be uniformly dispersed on the pedestal foundation, and the problems that due to the fact that the local stress of the pedestal foundation is excessively high, the pedestal foundation settles, and then the pedestals crack are avoided.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a T-beam prefabricated pedestal and a construction method thereof. Background technique [0002] With the rapid development of my country's economy, the continuous improvement of my country's road network, railway network and urban road network has been promoted, and bridges have played a vital role. Among them, prefabricated T-beams are an important part of bridge engineering. In my country, the production of prefabricated T-beams needs to be completed by a special beam-making yard. Beam-making pedestals are important tooling equipment for beam-making yards. Acts as an integral part in the production of prefabricated T-beams. [0003] At present, most T-beams are manufactured by post-tensioning construction. Post-tensioning refers to the construction method of pouring concrete first, and then stretching prestressed steel to form prestressed concrete components after r...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention proposes a T-beam prefabricated pedestal and its construction method to solve the problem of subsidence or cracking of the pedestal and the foundation of the pedestal when the prestress is stretched question

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