Assembly type bone-shaped shock-resistance node

Abstract

The invention discloses an assembly type bone-shaped shock-resistance node. The assembly type bone-shaped shock-resistance node is mainly composed of an H-shaped steel column, an H-shaped steel beam,a bone-shaped beam and a splice node, wherein the bone-shaped beam is added on the outer side of the joint between the H-shaped steel beam and the H-shaped steel column and is formed by cutting wing edges of a section of the H-shaped steel beam, the middle is small and two ends are large to form a bone-shaped structure, the bone-shaped beam is located between the steel column and the steel beam, one end of the bone-shaped beam is connected with the H-shaped steel beam through the splice node, the other end of the bone-shaped beam is welded to the steel column, bone-shaped beam wing edges are connected with steel beam wing edges through beam wing edge outer connection plates, beam wing edge inner connection plates and high-strength bolts, and a bone-shaped beam ventral plate and a steel beam ventral plate are connected through double-clamping-plate bolts. According to the assembly type bone-shaped shock-resistance node, by means of combination between the bone-shaped beam and the splicenode, a pre-set plastic hinge is made to occur at the bone-shaped beam, under the action of large shock, the bone-shaped beam forms the plastic hinge to become an energy-consuming beam end, the wholestructure is protected from collapse under the large shock, welding preparatory work performed on the spot is not needed, the on-the-spot construction cost is greatly reduced, and the construction period is greatly shortened.

Description

technical field [0001] The invention relates to the field of steel structure design, in particular to an assembled bone-shaped seismic node in the design of steel structure nodes. Background technique [0002] In April 2019, the Shanghai Municipal Commission of Housing and Urban-Rural Development issued the "Notice on Further Clarifying the Implementation Scope and Relevant Work Requirements of Prefabricated Buildings", pointing out that except for special scope requirements, new civil buildings and industrial buildings should all be implemented in accordance with the requirements of prefabricated buildings. Promoting the development of prefabricated buildings is an important component of promoting the transformation of building construction methods and promoting the green development of cities. As a prefabricated building structure, the steel structure can be processed in the factory and bolted on site, which greatly improves the construction efficiency. However, welding c...

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Problems solved by technology

[0003] According to the "Code for Seismic Design of Buildings" (GB1350011), the flexural bearing capacity of joints should be Ry times of the beam's own flexural bearing capacity (overstrength coefficient: 1.1-1.35), so that if the bolts are directly connected, the In the case of weakening, it is difficult to fail to meet the requirements of the relevant codes for the flexural bearing capacity, which forms a contradiction: the development of prefabricated structures requires the use of bolted connections on site, while the strong joint requirements of the codes cannot be bolted.

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