工程科学学报，第41卷，第6期：824833,2019年6月 Chinese Journal of Engineering,Vol.41,No.6:824-833,June 2019 DOI:10.13374/j.issn2095-9389.2019.06.015:http://journals.ustb.edu.cn 考虑楼板效应的外环板式梁柱节点抗弯承载力 王玲玲”，牟犇)四，林旭川2，河野昭彦》 1)青岛理工大学土木工程学院，青岛2660332)中国地震局工程力学研究所，哈尔滨150080 3)九州大学人间环境学府，福冈8120053 ☒通信作者，E-mail:mouben98@163.com 摘要楼板的存在对梁柱节点的局部受力影响显著，在梁柱节点设计中，若仅仅把楼板与钢梁的组合效应作为安全储备， 可能会产生结构由“强柱弱梁”转变成“强梁弱柱”的颠覆性结果，因此忽略混凝土楼板对节点承载力及刚度的影响是造成破 坏的重要原因.基于已完成的带楼板的T型梁柱节点低周往复荷载试验，建立了非线性有限元分析模型.为了更加全面地了 解钢梁一楼板组合节点的工作机制，进一步补充完善试验研究的不足，模型考虑了楼板与钢梁之间的栓钉连接以及材料非线 性等因素，模型的计算结果与试验结果具有高吻合度.在此基础上，通过有限元参数分析，详细分析了构件尺寸效应、轴压比、 楼板厚度、楼板强度和柱宽厚比共五个参数对考虑楼板影响的外环板式梁柱节点抗震性能的影响.结果表明尺寸效应、轴压 比对梁端抗弯承载力及刚度的影响小到可以忽略，楼板厚度、楼板强度和柱宽厚比对梁端抗弯承载力有显著影响.结合理论 分析进一步提出了考虑楼板影响的外环板式梁柱节点梁端抗弯承载力计算公式，通过对比公式计算结果与试验、有限元分析 结果可得，该计算公式可较好的计算带楼板外环板式梁柱节点梁端抗弯承载力 关键词楼板效应：外环板；梁柱节点：组合结构：非线性有限元分析 分类号TU392.3 Flexural capacity of beam-to-column joints with external diaphragm considering the slab effect WANG Ling+-ing》,MOU Ben,NXu-ehuan2》,KAWANO Akihiko》 1)Department of Civil Engineering,Qingdao University of Technology,Qingdao 266033,China 2)Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China 3)Graduate School of Human-Environment Studies,Kyushu University,Fukuoka 8120053,Japan Corresponding author,E-mail:mouben98@163.com ABSTRACT The existence of concrete slab has significant influence on the local mechanical characteristic of the beam-to-column joint.In the design of beam-to-column joints,if the composite effects of steel beam and concrete slab are considered particularly as safety stock,the counteractive result of "strong column and weak beam"or "strong beam and weak column"may be produced;there- fore,ignoring the influence of concrete slab affect the bearing capacity and stiffness of the joints.Based on the results of a full-scale cyclic test conducted on T-shaped beam-to-column joints,a detailed nonlinear finite element model was proposed.To completely under- stand the working mechanism of composite joints and further improve the experimental research,the nonlinear material properties and the shear effect of the connectors between concrete slab and steel beam were considered in the model.The results from the model agree well with the test results.Moreover,an extensive parametric study was performed to examine the seismic behavior of the joints.Param- eters,such as the size effect,axial-load ratio,slab thickness,concrete compressive strength,and diameter-to-thickness ratio of the 收稿日期：2018-05-16 基金项目：国家重点研发计划资助项目(2017YFC1500605):国家自然科学基金资助项目(51678542)：中国博士后面上资助项目 (2017M612226)工程科学学报，第 41 卷，第 6 期: 824--833，2019 年 6 月 Chinese Journal of Engineering，Vol． 41，No． 6: 824--833，June 2019 DOI: 10． 13374 /j． issn2095--9389． 2019． 06． 015; http: / /journals． ustb． edu． cn 考虑楼板效应的外环板式梁柱节点抗弯承载力 王玲玲1) ，牟 犇1) ，林旭川2) ，河野昭彦3) 1) 青岛理工大学土木工程学院，青岛 266033 2) 中国地震局工程力学研究所，哈尔滨 150080 3) 九州大学人间环境学府，福冈 8120053 通信作者，E-mail: mouben98@ 163． com 摘 要 楼板的存在对梁柱节点的局部受力影响显著，在梁柱节点设计中，若仅仅把楼板与钢梁的组合效应作为安全储备， 可能会产生结构由“强柱弱梁”转变成“强梁弱柱”的颠覆性结果，因此忽略混凝土楼板对节点承载力及刚度的影响是造成破 坏的重要原因． 基于已完成的带楼板的 T 型梁柱节点低周往复荷载试验，建立了非线性有限元分析模型． 为了更加全面地了 解钢梁--楼板组合节点的工作机制，进一步补充完善试验研究的不足，模型考虑了楼板与钢梁之间的栓钉连接以及材料非线 性等因素，模型的计算结果与试验结果具有高吻合度． 在此基础上，通过有限元参数分析，详细分析了构件尺寸效应、轴压比、 楼板厚度、楼板强度和柱宽厚比共五个参数对考虑楼板影响的外环板式梁柱节点抗震性能的影响． 结果表明尺寸效应、轴压 比对梁端抗弯承载力及刚度的影响小到可以忽略，楼板厚度、楼板强度和柱宽厚比对梁端抗弯承载力有显著影响． 结合理论 分析进一步提出了考虑楼板影响的外环板式梁柱节点梁端抗弯承载力计算公式，通过对比公式计算结果与试验、有限元分析 结果可得，该计算公式可较好的计算带楼板外环板式梁柱节点梁端抗弯承载力． 关键词 楼板效应; 外环板; 梁柱节点; 组合结构; 非线性有限元分析 分类号 TU392. 3 收稿日期: 2018--05--16 基金项目: 国家重点研发计划资助项目 ( 2017YFC1500605 ) ; 国家 自 然 科 学 基 金 资 助 项 目 ( 51678542 ) ; 中 国 博 士 后 面 上 资 助 项 目 ( 2017M612226) Flexural capacity of beam-to-column joints with external diaphragm considering the slab effect WANG Ling-ling1) ，MOU Ben1)  ，LIN Xu-chuan2) ，KAWANO Akihiko3) 1) Department of Civil Engineering，Qingdao University of Technology，Qingdao 266033，China 2) Institute of Engineering Mechanics，China Earthquake Administration，Harbin 150080，China 3) Graduate School of Human-Environment Studies，Kyushu University，Fukuoka 8120053，Japan Corresponding author，E-mail: mouben98@ 163． com ABSTＲACT The existence of concrete slab has significant influence on the local mechanical characteristic of the beam-to-column joint． In the design of beam-to-column joints，if the composite effects of steel beam and concrete slab are considered particularly as safety stock，the counteractive result of“strong column and weak beam”or“strong beam and weak column”may be produced; there￾fore，ignoring the influence of concrete slab affect the bearing capacity and stiffness of the joints． Based on the results of a full-scale cyclic test conducted on T-shaped beam-to-column joints，a detailed nonlinear finite element model was proposed． To completely under￾stand the working mechanism of composite joints and further improve the experimental research，the nonlinear material properties and the shear effect of the connectors between concrete slab and steel beam were considered in the model． The results from the model agree well with the test results． Moreover，an extensive parametric study was performed to examine the seismic behavior of the joints． Param￾eters，such as the size effect，axial-load ratio，slab thickness，concrete compressive strength，and diameter-to-thickness ratio of the