On-site assembling type extending arm combined node

Abstract

The invention provides an on-site assembling type extending arm combined node, which is adapted to the big-span, high-rise and heavy-load development of a modern engineering structure and the requirement of enduring a mal-condition. The on-site assembling type extending arm combined node comprises a steel tube concrete column, H-type girder mounting plates for extending arms, outer base plates for the extending arms, an H-type girder, and the like. Two H-type girder mounting plates for the extending arms are welded on the steel tube concrete column; cross-shaped node H-type girder mounting plates for the extending arms, T-shaped node H-type girder mounting plates for the extending arms, straight node H-type girder mounting plates for the extending arms and L-shaped node H-type girder mounting plates for the extending arms are respectively selected according to different node forms of a central column of a middle frame, a side pillar of the middle frame, the central column of a side frame and the side pillar of the side frame; and the H-type girder is assembled on site. The on-site assembling type extending arm combined node has the effects and advantages of high bearing capacity, excellent plasticity and toughness, convenience in construction, better fire resistance, excellent economic effects and beautiful and safe nodes and meets the demand of industrialization of the modern construction technology.

Description

technical field [0001] The invention relates to a new node of building structure, in particular to an on-site assembled outrigger combined node for a steel tube concrete column steel beam combined structure. Background technique [0002] Concrete filled steel tubes use the interaction between steel tubes and concrete in the process of stress, that is, the confinement of steel tubes to concrete makes the concrete in a complex stress state, so that the strength of the concrete can be improved, and the plasticity and toughness properties are greatly improved. At the same time, the existence of concrete can avoid or delay the local buckling of the steel pipe, which can ensure the full play of its material properties. In addition, in the construction process of steel pipe concrete, the steel pipe can also be used as a formwork for pouring its core concrete. Compared with reinforced concrete , can save formwork costs and speed up construction. In short, the combination of steel p...

AI Technical Summary

Problems solved by technology

The biggest problem with current nodes is that design rationality and application rationality cannot be balanced

Some joints are not rigid enough to form rigid joints; some joints use internal core-through components, which affects the construction speed and it is difficult to ensure the quality of concrete pouring; some joints are relatively rigid, but due to various reasons, the joint structure is complicated and difficult to construct; The structure is complex, which leads to unclear force transmission path, and also brings difficulties to construction; some nodes have good overall performance, but waste steel and complicate construction; Weld quality and joint problems have seriously restricted the development of the structural system

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