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A platform for research: civil engineering, architecture and urbanism
Design method for quick-release tenon-and-mortise bolting prefabricated beam-column joint of controllable plastic hinge
The invention discloses a quick-release mortise and tenon type bolting prefabricated beam column joint design method for a controllable plastic hinge, which comprises the following design steps: S1, designing a prefabricated beam column joint, determining a prefabricated beam end plate and a core area structure, designing a rectangular hoop of a central area, and connecting the end plate with the rectangular hoop in a mortise and tenon type opposite penetrating manner, the method is high in operability, good in anti-seismic performance and good in post-earthquake repairability, the bending moment relation is analyzed during design, the length range of the reinforced steel plate is determined, the bending bearing capacity of a plug pin of the end plate at the precast beam end is analyzed, and the general height-thickness ratio and the normal stress distribution condition of the reinforced steel plate are analyzed. The bending moment of the reinforcing steel plate in the stress state is analyzed, the thickness of the reinforcing steel plate is adjusted, and therefore outward movement of a plastic area is achieved, a joint plastic hinge area is transferred to a controllable area from a core area, and brittle failure of the connecting position caused by too large energy absorption of a traditional reinforced concrete beam column joint is improved.
本发明公开了一种可控塑性铰的快拆榫卯式栓接预制梁柱节点设计方法，包括如下设计步骤：S1、进行预制梁柱节点设计，确定预制梁端板和核心区域结构，本发明设计中心区域的矩形套箍，使用端板榫卯式对穿的方式与矩形套箍连接，纵向受力钢筋与X向端板焊接，可操作性强，抗震性能良好，震后修复性好，设计时对弯矩关系进行分析，确定加强钢板的长度范围，分析预制梁端端板插销抗弯承载力，分析加强钢板的通用高厚比和正应力分布情况，分析应力状态下的加强钢板弯矩，调整加强钢板的厚度，从而实现塑性区域的外移，把节点塑性铰区由核心区转移至可控区域，改善传统钢筋混凝土梁柱节点因吸能过大而产生的连接处脆性破坏。
Design method for quick-release tenon-and-mortise bolting prefabricated beam-column joint of controllable plastic hinge
The invention discloses a quick-release mortise and tenon type bolting prefabricated beam column joint design method for a controllable plastic hinge, which comprises the following design steps: S1, designing a prefabricated beam column joint, determining a prefabricated beam end plate and a core area structure, designing a rectangular hoop of a central area, and connecting the end plate with the rectangular hoop in a mortise and tenon type opposite penetrating manner, the method is high in operability, good in anti-seismic performance and good in post-earthquake repairability, the bending moment relation is analyzed during design, the length range of the reinforced steel plate is determined, the bending bearing capacity of a plug pin of the end plate at the precast beam end is analyzed, and the general height-thickness ratio and the normal stress distribution condition of the reinforced steel plate are analyzed. The bending moment of the reinforcing steel plate in the stress state is analyzed, the thickness of the reinforcing steel plate is adjusted, and therefore outward movement of a plastic area is achieved, a joint plastic hinge area is transferred to a controllable area from a core area, and brittle failure of the connecting position caused by too large energy absorption of a traditional reinforced concrete beam column joint is improved.
本发明公开了一种可控塑性铰的快拆榫卯式栓接预制梁柱节点设计方法，包括如下设计步骤：S1、进行预制梁柱节点设计，确定预制梁端板和核心区域结构，本发明设计中心区域的矩形套箍，使用端板榫卯式对穿的方式与矩形套箍连接，纵向受力钢筋与X向端板焊接，可操作性强，抗震性能良好，震后修复性好，设计时对弯矩关系进行分析，确定加强钢板的长度范围，分析预制梁端端板插销抗弯承载力，分析加强钢板的通用高厚比和正应力分布情况，分析应力状态下的加强钢板弯矩，调整加强钢板的厚度，从而实现塑性区域的外移，把节点塑性铰区由核心区转移至可控区域，改善传统钢筋混凝土梁柱节点因吸能过大而产生的连接处脆性破坏。
Design method for quick-release tenon-and-mortise bolting prefabricated beam-column joint of controllable plastic hinge
一种可控塑性铰的快拆榫卯式栓接预制梁柱节点设计方法
JIANG HAOTIAN (author) / KIM JIN-HWA (author) / CHEN GANG (author) / LIANG XIANCHAO (author) / WANG JING (author) / LIU DAN (author) / MEI JIANGTAO (author)
2023-07-14
Patent
Electronic Resource
Chinese
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