摘要
针对某框架梁端支座变化,计算得出梁端约束变化是造成梁结构性裂缝的根源,根据现行规范图集框架梁柱节点核心区纵筋锚固和箍筋加密构造措施,分析其(包括梁柱纵筋的接头位置和数量)控制机理,通过梁柱地震破坏实景,得出保证框架梁塑性铰位置出现措施与柱端箍筋加密的必要性,具体计算受力钢筋偏位对梁承载力的影响,为工程技术人员对框架梁柱关键节点钢筋锚固加密处理进行力学溯源。
According to the change of the end support of a frame beam,it is calculated that the change of the beam end constraint is the source of the structural cracks in the beam.Beam-column longitudinal reinforcement joint position and quantity control mechanism.Based on the actual scene of beam-column seismic damage,the necessity of ensuring the position of the plastic hinges of the frame beam and the column end stirrup reinforcement is derived.Influence,for engineering and technical personnel to carry out mechanical traceability to the reinforcement and reinforcement of the key nodes of the frame beam and column.
作者
杨青
杨国兵
Yang Qing;Yang Guobing(School of Civil and Architectural Engineering,Chuzhou University,Chuzhou 239000 China;Anhui Chuzhou Technician College,Chuzhou 239000,China)
出处
《山西建筑》
2020年第8期51-54,共4页
Shanxi Architecture
关键词
混凝土结构
框架梁柱
关键节点
力学溯源
concrete structure
frame beam
key node
traceability of mechanics
