Connecting structure for prefabricated regenerated block concrete beam and construction method thereof

Abstract

The invention discloses a connecting structure for a prefabricated regenerated block concrete beam. The connecting structure comprises a bracket which is simultaneously prefabricated with a column, a prefabricated beam with a notch in an end part, a positioning plate with a hole, an erecting rib, a hoop rib, a common longitudinal rib, a bent longitudinal rib, a steel sleeve with an internal thread, a rebar rod with an external thread, an anti-shearing steel and an axial pore channel. The invention also discloses a construction method for the connecting structure for the prefabricated regenerated block concrete beam. According to the invention, the site pouring volume is less and the construction speed is high and the bent longitudinal rib is adopted, so that the thickness of a concrete protecting layer of the axial pore channel filled with the structure glue is obviously increased, the degradation of the fire disaster for the structure glue is effectively relieved, the effective connection in a connection area between the bracket which is simultaneously prefabricated with the column and the prefabricated beam with the notch in the end part is guaranteed, the beam has excellent water resistance, the connecting area is yielded and forms a plastic hinge in advance under an earthquake effect and the realization of the 'strong-column weak-beam' anti-seismic thought is guaranteed.

Description

technical field [0001] The invention relates to the technical field of waste concrete recycling, in particular to a connection structure of prefabricated recycled block concrete beams and a construction method thereof. Background technique [0002] With the worsening of environmental problems, the recycling of waste concrete has attracted widespread attention at home and abroad. Compared with the traditional recycled coarse aggregate and recycled fine aggregate, the use of larger-scale waste concrete blocks not only has the advantages of high crushing efficiency and low crushing energy consumption, but also can significantly reduce the subsequent cement consumption, and the environmental protection and energy saving benefits are obvious . At the same time, the country is focusing on the Beijing-Tianjin-Hebei, Yangtze River Delta, Pearl River Delta urban agglomerations and other cities with a permanent population of more than 3 million, vigorously developing prefabricated bu...

AI Technical Summary

Problems solved by technology

Since there are many beams, column longitudinal bars and stirrups passing through the joint core area, the quality of concrete pouring in the core area may be adversely affected

At the same time, the wet connection method of pouring a large amount of concrete on site has a great impact on the environment and the construction speed is relatively slow

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