【作者】 戴濛濛； 黄慎江； 高鹏；

【Author】 DAI Mengmeng;HUANG Shenjiang;GAO Peng;School of Civil and Hydraulic Engineering,Hefei University of Technology;Civil Engineering Structure and Materials laboratory of Anhui Province;National Assembly Building Demonstration Base;

【机构】 合肥工业大学土木与水利工程学院； 安徽省土木工程结构与材料实验室； 全国装配式建筑示范基地；

【摘要】 结合一榀单层两跨预压装配式PC框架试验,考虑梁柱拼接节点处预应力筋的作用,推导并计算了预应力节点初始转动刚度,初步确定了预压装配式节点的半刚性特性;进一步计算了荷载作用下按刚接和半刚接计算的梁端弯矩值并与试验值进行了比较,发现按半刚接计算预压装配式梁柱节点更接近实际状态,侧面验证了节点的半刚性特性;最后探讨了需要进一步研究的关键问题,为今后的研究指明了方向。更多还原

【Abstract】 Based on the experimental study of one-layer two-span pre-stressed precast concrete frame,with the consideration of the influence of pre-stressed reinforcements in the beam-to column joints,the initial rotational stiffness of pre-stressed joints was deduced and calculated.The semi-rigid characteristics of pre-loaded fabricated joints were initially determined.Besides,the moment values of beam ends with rigid connection and semi-rigid connection were calculated and compared with the experimental values,and the results showed that it was closer to the actual state according to the semi-rigid consideration,verifying the semi-rigid characteristic of beam-to-column joints indirectly.Finally,the key problems to be further studied were discussed to point out the future research direction.更多还原