Prefabricated assembling joint

Abstract

The invention discloses a prefabricated assembled node, which is characterized in that it consists of a prefabricated active powder concrete pipe, connecting steel pipes, internal concrete columns and steel beams; wherein, the upper and lower layers of prefabricated active powder concrete pipes are bonded to the connecting steel pipes with an adhesive Both ends; the longitudinal reinforcement of the internal concrete column is welded to the inner wall of the connecting steel pipe; the steel beam is connected to the connecting steel pipe through the end plate and bolts, or connected to the node by a short leg beam welded on the side of the connecting steel pipe. The invention realizes the assembled structure of prefabricated active powder concrete tube composite column-steel beam. Compared with the existing steel pipe concrete-steel beam assembled joint, this new assembled joint not only has good constructability and mechanical properties, but also It has outstanding fire resistance, durability and economy, and at the same time saves resources and energy more, and meets the requirements of 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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