Connecting structure of assembled-type prefabricated beam column and construction method

Abstract

The invention relates to a connecting structure of an assembled-type prefabricated beam column and a construction method. The connecting structure of the assembled-type prefabricated beam column comprises a prefabricated component and a beam column connecting node. The prefabricated component is a prefabricated beam and a prefabricated column. The beam column connecting node is an intersection point of the prefabricated beam and the prefabricated column. The prefabricated beam and the prefabricated column are connected as a whole body through cast-in-place concrete at the beam column connecting node. A plurality of fibers is embedded in the end faces of the prefabricated beam and the prefabricated column at the beam column connecting node. A part of the fibers is embedded in the prefabricated beam and the prefabricated column, and the other end of the fibers is stretched into the cast-in-place concrete at the beam column connecting node. The structure is rational in stress, high in strength, convenient for construction, and capable of effectively avoiding a problem that strength of a connection place of the prefabricated beam and the prefabricated column is not reliable, and adequately guaranteeing a design concept of an assembling integrated building system of 'strong shearing capacity and weak bending capacity and stronger node', and beneficial to development and popularization of the assembled-type building system.

Description

technical field [0001] The invention relates to a connection structure and a construction method of an assembled prefabricated beam-column. Background technique [0002] Prefabricated buildings change the construction method based on site operations into factory production, which is an important part of the modernization of the construction industry and a crucial step towards industrialization and informatization of buildings. Prefabricated buildings have many advantages such as improving quality, shortening construction period, saving energy, reducing consumption, and clean production. At present, with the rapid development of my country's economy, prefabricated buildings are widely promoted. Assembled monolithic concrete structure is currently the most widely used prefabricated form in my country, and the "equivalence principle" is a core of the application of prefabricated monolithic concrete structures. The principle of equivalence means that the assembled monolithic c...

AI Technical Summary

Problems solved by technology

Although the overall performance of the wet joint is good, there are many uncertainties in the construction project, and the construction quality is difficult to guarantee

The nodes are originally the weak parts of the building structure, once there is a problem, catastrophic accidents may occur

From the perspective of force, the force of the connecting node needs to be directly transmitted through the post-cast concrete area. Although the old and new concrete connection interface has a rough surface, the force transmission effect is poor, and the force is mainly transmitted by various connecting ribs and pre-embedded weldments.

Especially under repeated loads, the reliability of its mechanical performance is not easy to guarantee, and the application of prefabricated structures in earthquake areas is greatly limited. Therefore, only by solving the problem of prefabricated node connections can prefabricated buildings be promoted.

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