Assembly type prestressed steel pipe concrete column-column connection mode

Abstract

The invention provides an assembly type prestressed steel pipe concrete column-column connection mode and belongs to the technical field of structural engineering. A connection device comprises a lower column, an upper column, a lower cover plate, an upper cover plate, lower column lifting hooks and prestressed cables. The lower column is provided with two lower column lifting hooks, and the lower column lifting hooks are welded to the two inner surfaces of the upper end of the lower column respectively, play a positioning role in the lifting process of the upper column and play a role in strengthening a joint area after the upper column is lifted. After lifting is completed, cement paste is pumped upwards through reserved holes in the lower cover plate, so that the upper and lower columns are filled with the cement paste. Connection with certain strength is achieved by filling the columns with the cement paste. The connection part of the columns is located near a contraflexure point so that the shear capacity of the columns can be improved by pouring the cement paste. The prestressed cables are fixed through the upper and lower columns, the deformation performance and the compressional stiffness of the columns are improved, the tensile strength of the columns is obviously improved, assembly between structural die blocks is achieved, assembly speed of the members is increased, the assembly quality of the members is improved, and the connection mode sufficiently meets requirements of an assembly type steel structure system and sufficiently adapts to characteristics of the assembly type steel structure system. Through the assembly type prestressed steel pipe concrete column-column connection mode, the construction speed is greatly increased, the construction quality is greatly improved, and the column-column connection mode adapts to the development of assembly type steel structures.

Description

technical field [0001] The invention relates to an assembled prestressed steel pipe concrete column connection method, which belongs to the technical field of structural engineering. Background technique [0002] The prefabricated steel structure system refers to the building produced by manufacturing housing units or components according to uniform and standard building part specifications, and then transporting them to the construction site for assembly in place. It is characterized by light building weight, energy saving and environmental protection, fast construction speed, and high degree of industrialization. It can solve many problems such as the low level of construction industrialization in my country, low labor productivity in house construction, and low quality of traditional house products, and adapt to the development of my country's construction industry. [0003] The column-to-column connection is an important connection in the fabricated steel structure syste...

AI Technical Summary

Problems solved by technology

(3) Due to the high rigidity of the welded structure, individual local cracks are easy to expand to the whole

Ordinary bolt connection When the bolt precision is low, it is not suitable for shearing, and when the bolt precision is high, it is difficult to process and install

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