学术论文

      考虑约束作用的空间钢构架混凝土梁柱节点域受剪承载力分析

      Analysis of shear bearing capacity of spatial steel frame concrete beam-column joint region considering constraint effects

      摘要:
      在分析影响空间钢构架约束作用主要因素的基础上,采用有效约束系数ke ,综合考虑空间钢构架对梁柱节点域混凝土的约束作用。在分析已有试验结果的基础上,提出了空间钢构架约束混凝土的抗压强度fcc的计算公式。根据空间钢构架混凝土梁柱节点试验结果,提出了考虑约束作用的空间钢构架混凝土梁柱节点域受剪承载力Vu 的计算公式,计算值和试验值吻合较好,为这种新颖梁柱节点的工程应用提供依据。
      Abstract:
      Based on analyzing the main factors which affect constraints of the spatial steel frame, the constrain function of spatial steel frame on beam?column joint concrete was considered by using effective constraint coefficient. Through analyzing the existing test results, the calculation formulae of the confined concrete compressive strength by spatial steel frame was put forward. According to the test results of spatial steel frame concrete beam?column joints, the calculation formulae of the shear bearing capacity of the spatial steel frame concrete beam?column joint region considered constraint effects was proposed. The calculated results were agreed well with the experimental results, which provides the basis for this new type beam?column joints of engineering application.
      作者: 朱成杰 [1] 唐兴荣 [2] 巩牧华 [3]
      Author: ZHU Chengjie [1] TANG Xingrong [2] GONG Muhua [3]
      作者单位: 盐城工学院,江苏 盐城 224003; 苏州科技学院,江苏 苏州 215011 苏州科技学院,江苏 苏州,215011 盐城工业职业技术学院,江苏 盐城,224005
      年,卷(期): 2017, 39(1)
      分类号: TU398
      在线出版日期: 2017年3月7日
      基金项目: 建设部科学研究项目(990312);苏州科技学院研究生科研创新计划