The method of installing the prefabricated cover beam on the column

Abstract

The invention discloses a method for installing a prefabricated cover beam on a standing column. The method includes the steps that S1, pad tables are put on the upper end face of the standing column;S2, mortar is laid in other areas except for areas in which the pad tables are put on the upper end face of the standing column so that a mortar layer can be arranged on the upper end face of the standing column, and the upper surface of the mortar layer is lower than the upper surfaces of the pad tables; S3, the prefabricated cover beam is put on the upper end faces of the pad tables and adjusted, and reaches the preset position; S4, the prefabricated cover beam is lifted a certain distance in the vertical direction, the upper surfaces of the pad tables are adjusted to the portion lower thanthe upper surface of the mortar layer, and the prefabricated cover beam falls down and is pressed on the upper surface of the mortar layer in the vertical direction till the prefabricated cover beamis put on the upper surfaces of the pad tables. According to the method, position adjustment of the prefabricated cover beam is only carried out one time in the whole process, and compared with the condition that a prefabricated cover beam needs to be adjusted two times to the preset position in a traditional method before adjustment, time is saved, and the position accuracy of the prefabricated cover beam is increased.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a method for installing a prefabricated cover beam on a column. Background technique [0002] In the prefabricated bridge, the columns and prefabricated cover beams are all prefabricated in the factory, and the prefabricated cover beams are hoisted by large lifting equipment on site, and then installed on the columns. On the one hand, the joint surface of the column and the prefabricated cover beam needs to ensure the flatness, so that the prefabricated cover beam can reach the preset position; [0003] Conventional practice generally adopts the following steps to realize the installation and fixation of prefabricated cover beams and columns: [0004] 1. Trial adjustment without sitting on the pulp [0005] Set steel backing plates at the four corners of the top of the column. Each steel backing plate is superimposed by multiple steel plates of different thicknesses...

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a prefabricated cover beam installed on the column in order to overcome the defects of the prior art that the prefabricated cover beam is installed on the column, the alignment time is long, the efficiency is not high, and the positioning accuracy of the cover beam is low. method

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