Construction method for haunching bi-directional tension prestressed concrete complex beam-column joints

Abstract

The invention provides a construction method for haunching bi-directional tension prestressed concrete complex beam-column joints. The construction method includes the steps of deepening design, three-dimensional modeling, joint non-prestressed steel bars binding, joint corrugated pipe arrangement, concealed engineering inspection and acceptance, concrete pouring and tamping and maintenance, performing of a prestressed tendon tensioning method, performing of tensioning sequence, end portion sealing anchorage and the like. The construction method for the haunching bi-directional tension prestressed concrete complex beam-column joints accelerates the construction progress, saves the construction period, and ensures the engineering quality of the beam-column joints and the bearing capacity ofjoint areas.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a complex beam-column joint of bidirectionally tensioned prestressed concrete with haunches. Background technique [0002] In recent years, with the continuous improvement of my country's economic level and the continuous acceleration of urbanization, construction projects have increased day by day. Prestressed concrete structures have the advantages of small cross-section, high rigidity, good crack resistance and durability, so they are widely used in construction projects. Reasonable and effective prestressing technology is used to effectively control the cracks of components, so that the frame has greater rigidity and bearing capacity, and can give full play to the various properties of materials, so that materials can be fully utilized and improve the economy of such projects Benefits, improve the durability and reliability of prestressed concrete structures. ...

AI Technical Summary

Problems solved by technology

[0003] In the construction of super large space buildings such as railway stations, gymnasiums, airport terminals, exhibition centers, teaching buildings, museums, libraries, etc. with cast-in-place prestressed concrete technology, especially when the construction site has a large area, complex and diverse structures, and a large number of components And in the prestressed concrete project with two-way intersecting arrangement of prestressed beams, the steel bars in the core area of ​​the beam-column joints are dense and the distribution is intricate, the structure of the joints plus axillary tension ends is complex, and some nodes are arranged with multiple rows of prestressed tendons, so the prestressed concrete The construction process of beam-column joints is complicated and difficult to construct, especially the construction quality of the core area of ​​such complex beam-column joints is difficult to get due guarantee

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