Building node with multiple energy consumption and self-resetting characteristics and its assembly method

Abstract

The invention discloses a building node with multiple energy consumption and self-resetting characteristics and its assembly method. The invention includes two sections of steel beams located on the same axis, and the steel beams pass through special-shaped laminated damping plates on the inner and outer sides of the flanges. It is integrated with the three parts of the shear connecting plate on both sides of the web as a whole. The inner and outer special-shaped laminated damping plates are composed of SMA plates and weakened low-yield point steel plates, and the coordinated force-bearing blocks fixed on the SMA plates pass through the weakened low-yield point steel plates to strengthen the connection between the two. The weakened low-yield point steel plate and the SMA plate yield successively to achieve the goal of energy consumption sequence, and the SMA plate provides self-resetting ability. The structure of the invention has the characteristics of simple structure, stable energy consumption, and excellent self-resetting effect. When the steel beam is bent, the traditional flange tension and compression mode is converted into the bending form of the special-shaped laminated damping plate, which avoids the traditional flange Instability and loss of bearing capacity caused by pressure.

Description

technical field [0001] The invention belongs to the field of node construction in buildings, and relates to a building node with multiple energy consumption and self-resetting characteristics and an assembly method thereof. Background technique [0002] The steel structure has the advantages of less pollution in processing and manufacturing, convenient installation and use, high dismantling and recycling rate, and meets the requirements of green buildings in the entire life cycle. It is foreseeable that steel structures will play an important role in the development of civil architecture in the future. [0003] Typical steel structure joints usually adopt the structural form of welding and high-strength bolt connection. In the 1994 Northridge Earthquake in the United States, in response to the phenomenon of brittle fractures in the beam-column joints of steel structures, scholars improved the mechanical performance of the joints by weakening the beam end section. Severe bu...

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Problems solved by technology

Based on this, taking advantage of the excellent mechanical characteristics of the weakened low-yield point steel plate and the self-resetting performance of the SMA plate, the two are reasonably laminated and designed as a special-shaped laminated damping plate constrained by each other to achieve both energy consumption and self-repositioning of the nodes. The goal of the reset feature, the current research work has not yet been carried out

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