Prefabricated assembling joint

Abstract

The invention discloses a prefabricated assembling joint which is characterized by comprising prefabricated active powder concrete pipes, a connection steel pipe, an inner concrete column and steel beams, wherein the upper and lower layers of prefabricated active powder concrete pipes are adhered to two ends of the connection steel pipe through adhesives; longitudinal steel bars of the inner concrete column are welded on the inner wall of the connection steel pipe; the steel beams are connected with the connection steel pipe through end plates and bolts, or connected to a joint through a short limb beam welded on the side surface of the connection steel pipe. According to the prefabricated assembling joint, an assembling structure of a prefabricated active powder concrete pipe combination column-steel beam is realized; compared with an existing steel pipe concrete-steel beam assembling joint, the novel assembling joint is high in constructability and mechanical property, and is outstanding in fire resistance, durability and economy; furthermore, more resources and energy can be saved, so that the prefabricated assembling joint meets the requirement for sustainable development.

Description

technical field [0001] The invention mainly relates to the field of building structures in civil engineering, in particular to a prefabricated assembly node that can be used as an assembly structure. Background technique [0002] With the progress of the society and the continuous development of the economy, the modern construction industry has higher and higher requirements for building materials and building structures. The materials and structures must be able to adapt to the development of modern engineering structures to large spans, towering towers, and heavy loads and to withstand harsh conditions. Requirements for the use environment and durability, with high load-bearing capacity, good deformation capacity, good fire resistance and good performance / cost ratio. In addition, it must meet the requirements of building industrialization, and the prefabricated structure is the most active development direction. In the past 30 years, the emergence and development of new c...

AI Technical Summary

Problems solved by technology

But in the actual structure, it is very difficult to connect the composite column in the node area, because the prefabricated active powder concrete casing cannot be welded like the steel pipe, and it is also difficult to drill holes, so it is difficult to connect the beam to the column, especially the beam end. Longitudinal reinforcement is difficult to penetrate through the joint area, resulting in difficulties in connecting with the beam at the joint area

In addition, between the upper and lower columns, the prefabricated sleeves in the joint area cannot be directly connected, so the concrete pouring in the joint area is also difficult to support the formwork, and when the steel bars are tied at the joint, it is necessary to temporarily position the prefabricated sleeves in the upper layer. It is also very difficult for the construction

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