A pedestal for preventing tension cracks at beam ends and its construction method

Abstract

The invention provides a pedestal for preventing tension cracks at beam ends and a construction method, belonging to the technical field of building construction. Its technical solution is: a pedestal for preventing beam end tension cracks, including a first formwork, a second formwork, a connecting hinge, a waterproof rubber strip, a first support part arranged at the bottom of the first formwork, and a first support part arranged at the second formwork. The second support part at the bottom of the formwork; the second support part includes a first connection plate and a second connection plate arranged directly below the second formwork from top to bottom, and the second connection plate evenly arranged between the second formwork and the first connection plate Several second longitudinal beam supports, several high-strength springs fixedly connected between the first connecting plate and the second connecting plate, and an attached vibrator fixedly connected on the bottom surface of the first connecting plate. The beneficial effects of the present invention are: the beam end tension crack prevention pedestal and construction method provided by the present invention can avoid beam end cracks, ensure the pouring quality of beam end concrete, have simple structure and manufacture, can be used repeatedly, and have strong adaptability.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a pedestal for preventing tension cracks at beam ends and a construction method. Background technique [0002] Prefabricated prestressed beams are widely used in bridge engineering. In bridge construction, prestressed beams need to be built with prestressed beam pedestals before prefabrication. Traditional steel pedestals or concrete pedestals are mostly integral pedestals. When the prestressed beam is prestressed and stretched, due to the restraint of the pedestal, the beam end is prone to cracks. Dense, prone to concrete quality problems such as honeycomb pockmarks. [0003] To sum up, the traditional pedestal has the problems of easy cracks when the beam end is stretched, and the quality of concrete pouring at the bottom of the beam end is poor. [0004] How to solve the above-mentioned problems in the prior art is the problem faced by the present invention. ...

AI Technical Summary

Problems solved by technology

Traditional steel pedestals or concrete pedestals are mostly integral pedestals. When the prestressed beam is prestressed and stretched, due to the restraint of the pedestal, the beam end is prone to cracks. Dense, easy to produce concrete quality problems such as honeycomb pockmarks

[0003] To sum up, the traditional pedestal has the problems of easy cracks when the beam end is stretched, and the quality of concrete pouring at the bottom of the beam end is poor.

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