Staggered tensioning anchoring structure and construction method for assembling building prefabricated steel reinforced concrete middle column beam joint prestressed tendons

Abstract

The invention discloses a staggered tensioning anchoring structure for assembling building prefabricated steel reinforced concrete middle column beam joint prestressed tendons. The structure comprisesa prefabricated column, and further comprises a preserved duct preserved inside the prefabricated column, a crossed steel column integrally formed with the prefabricated column, a prefabricated column stacking layer arranged at the upper portion of the prefabricated column, a stacking beam arranged at one end of the prefabricated column, a top steel bar exposed out of the upper portion of the stacking beam, an outer stretching steel bar stretching out of the side of the prefabricated column, a plurality of preserved through holes formed in the crossed steel column, prestressed tendons penetrating through the preserved through holes, and a prestressed tendon anchoring device fixed to the crossed steel column. The prestressed tendons are fixed to the crossed steel column through the prestressed tendon anchoring device. The structure ensures the integrated stress requirement of the beam column joint, and the joint is good in hogging moment resisting effect.

Description

technical field [0001] The invention relates to a structure and a construction method of a column-beam connection node of an assembled building, in particular to a structure and a construction method of a prefabricated steel-concrete intermediate column-beam node of an assembled building with prestressed tendons cross-tensioned and anchored. Background technique [0002] In recent years, with the continuous development and progress of new building technologies and materials, prefabricated buildings have been widely used. In many countries with developed building industrialization, prefabricated buildings have experienced long-term experiments and applications. Modern prefabricated building products can already highly integrate various functions of buildings, and the forms and components of buildings are very delicate. [0003] my country's construction demand is large and the construction speed is fast. It is necessary to develop prefabricated buildings, so the requirement...

AI Technical Summary

Problems solved by technology

Traditional prefabricated structures have high hoisting costs and low hoisting speed and precision, which brings great difficulties to building construction. If the hoisting of prefabricated buildings wants to realize industrial modernization, the hoisting methods and detailed structure design of connection nodes must be paid attention to. Need further innovative research, for this reason the present invention has made relevant creation according to the innovation of actual construction on the basis of this problem

[0004] In terms of the existing technology, the main problem of the prefabricated steel-concrete intermediate column-beam joint prestressed tendon cross-tensioned anchorage structure of prefabricated buildings is that the stress of beam-column joints cannot be effectively improved without the development and use of superimposed prestressing technology The characteristics of the beam-column joints cannot guarantee the integrity of the force requirements, and the negative bending moment resistance of the joints is poor; the current construction method of the prefabricated steel concrete intermediate column-beam joint prestressed tendon cross-tensioned anchorage structure of prefabricated buildings has the following problems: High hoisting cost, low hoisting speed and precision, which brings great difficulties to construction

Images