An anchoring structure and construction method of interlaced tensioning tendons of prestressed tendons at end-column-beam joints

Abstract

The invention discloses a prefabricated steel concrete end column-beam joint prestressed tendon cross-tensioned anchorage structure for an assembled building, which includes a prefabricated column, and also includes: a reserved channel reserved in the prefabricated column; and the prefabricated column An integrated T-shaped steel column; a laminated layer of prefabricated columns arranged on the upper part of the prefabricated column; a composite beam arranged at one end of the prefabricated column; a top steel bar exposed on the upper part of the composite beam; The outstretched reinforcement on the side of the prefabricated column; the plurality of reserved perforations on the T-shaped steel column; the prestressed tendons passing through the plurality of reserved perforations; the pre-stressed reinforcement fixed on the T-shaped steel column A stress tendon anchoring device, the prestressed tendons are fixed on the T-shaped steel column through the prestressed tendon anchoring device; this structure ensures the integral stress requirements of the beam-column joints, and makes the joints have a good anti-negative bending moment 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 prestressed tendon cross-tensioned anchorage structure and a construction method of a prefabricated steel concrete end column-beam node of an assembled building. 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 building...

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] Combining the existing technology, the main problem of the prefabricated steel concrete end column-beam joint prestressed tendon interlaced tension anchorage structure of prefabricated buildings is that the superimposed prestressing technology cannot be effectively improved without the development and adoption of superimposed prestressing technology. The force characteristics cannot guarantee the integrity of the beam-column joints, and the negative moment resistance of the joints is poor; the current construction method of the prefabricated steel concrete end column-beam joint prestressed tendon cross-tensioned anchorage structure has problems Yes: The cost of hoisting is high, and the speed and precision of hoisting are low, which brings great difficulties to the construction

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