Prefabricated column and cast-in-place concrete structure sleeve inverted insertion type one-time grouting construction method

Abstract

The invention provides a prefabricated column and cast-in-place concrete structure sleeve inverted insertion type one-time grouting construction method. The method comprises the steps that 1, a cast-in-place concrete structure is constructed, the cast-in-place concrete structure is provided with cast-in-place piles and a cast-in-place floor, sleeves are arranged at the upper ends of cast-in-place pile column ribs, cup openings of the sleeves are flush with the top end of the cast-in-place floor, the sleeves are provided with upper-end slurry openings and lower-end slurry openings, the cast-in-place piles are sequentially constructed, the sleeves are mounted, positioning plates at the upper ends of the sleeves are mounted and the cast-in-place floor is constructed; 2, the positioning plates are dismounted; 3, the limiting plates are constructed; 4, a prefabricated column is hoisted, a joint grout outlet pipe is arranged in the prefabricated column, connecting ribs are arranged at the lower ends of prefabricated column ribs and are inserted into the sleeves one by one; 5, the prefabricated column is supported; 6, grouting construction is conducted in the sleeves one by one, so that grouting materials overflow from a grout outlet pipe, and grouting is conducted on the last sleeve till the grouting materials are discharged from the joint grout outlet pipe; and 7, construction is completed. According to the construction method, air in the sleeves and a joint in assembly type construction can be discharged easily, grouting fullness is guaranteed, and the method has the advantages of being high in construction quality, good in effect and easy to operate.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a sleeve-inverted primary grouting construction method for a prefabricated column and cast-in-situ concrete structure. Background technique [0002] There are more or less cast-in-place concrete structures in the prefabricated building structure, and the connection forms between the cast-in-place concrete structure and the prefabricated components can be steel sleeve grouting connection, steel grout anchor lap joint and post-cast concrete steel bar lap joint. Compared with the other two overlapping methods, the steel sleeve grouting connection is superior to the other two in terms of mechanical properties of joints, construction quality control and reliability. Usually, in the steel bar sleeve grouting connection structure, the sleeve is located in the upper structure, the cup mouth is downward, the column bar is located in the lower structure, inserted into the sleeve upwar...

AI Technical Summary

Problems solved by technology

This kind of grouting is not conducive to the air discharge in the sleeve and the joint grouting process, which affects the fullness of the grouting in the prefabricated construction, and then affects the construction pass rate of the connection between the upper and lower structures, so it is necessary to improve

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