适于双钢板组合剪力墙水平连接的承插式方形半灌浆套筒抗拉性能
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北京工业大学城市建设学部

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TU398

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国家自然科学基金(51978014)


Research on the tensile performance of a socket grouted sleeve suitable for horizontal joints in double skin composite shear walls
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Faculty of Architecture,Civil and Transportation Engineering,Beijing University of Technology

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    摘要:

    使用双钢板组合剪力墙作为建筑主要抗侧力构件时,墙体水平连接至关重要,而目前用于该墙体的主要水平连接方式还是传统的螺栓连接和焊接,这在施工上具有较大的不便性,且未能充分发挥该墙体的结构优势。本文根据这种墙体的结构特点,设计了一种新型的上下层墙体水平缝连接节点,承插式方形半灌浆套筒连接,利用有限元模拟探究了钢筋直径、套筒长度、灌浆料强度和套筒形式对该新型连接节点抗拉性能的影响。结果表明:该节点能较好地连接双钢板组合剪力墙的水平拼缝,具有施工便捷、性能可靠的优点,且节点破坏主要发生在连接钢筋上,能够使装配式双钢板组合剪力墙实现“等同现浇”的目标。

    Abstract:

    When utilizing double skin composite shear walls as the primary components for resisting lateral forces in buildings, it is crucial to ensure proper horizontal connection of the walls. Currently, traditional bolt connections and welding are the main methods used for horizontal connection of these walls. However, these methods present significant challenges during construction and do not fully exploit the structural advantages of the wall. Based on the structural characteristics of this type of wall, a new type of horizontal joint connection node has been designed for the upper and lower layers of the wall. This new design features a socket-type square semi-grouted sleeve connection. The influence of steel bar diameter, sleeve length, grouting material strength, and sleeve form on the tensile performance of this new connection node has been explored using finite element simulation. The results indicate that this new node effectively connects the horizontal joints of double skin composite shear walls with several advantages including convenient construction and reliable performance. Furthermore, it was observed that failure mainly occurs on connecting steel bars which achieves an "equivalent cast-in-place" goal for prefabricated double skin composite shear walls.

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吕俊强,李振宝,杨贝贝,等. 适于双钢板组合剪力墙水平连接的承插式方形半灌浆套筒抗拉性能[J]. 科学技术与工程, , ():

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  • 收稿日期:2024-02-29
  • 最后修改日期:2024-05-03
  • 录用日期:2024-05-20
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