福州大学学报（自然科学版）2017，Vol.45Issue(4)：517-522,6.DOI:10.7631/issn.1000-2243.2017.04.0517
整浇楼板对钢筋混凝土框架梁柱受力的影响分析
Effect of slab on the internal force of columns and beams of reinforced concrete frame
摘要
Abstract
Four different finite element models of RC frame structure are built to study the effect of slab with opening on the internal force of columns and beams.By investing the plastic hinge occurrence and reinforcement force of beams and columns,the influence law of combined action of beam and slab to plastic hinges is analyzed.It shows that when opening of slab is at the position of beam with hogging moment,the decrease of participating slab reinforcement make the actual flexural capacity of beam reduced,then the beam plastic hinges at hogging moment can appear earlier.That when opening of slab is at the position of beam with sagging moment,the beam plastic hinges at hogging moment can appear earlier by means of enlarged distributed hogging moment caused by the change of moment distribution coefficient.That the column plastic hinges are delayed by changing the column moment distribution between top and bottom because of the reducing of restraint at the top of column.The integral controlled action will cause torsion at some column tops and affect the appearance of column plastic hinges.关键词
钢筋混凝土框架/现浇楼板/层间侧移/强柱弱梁/塑性铰/扭矩Key words
reinforced concrete frame/monolithic slab/story lateral displacement/strong column-weak beam/plastic hinges/torque分类
建筑与水利引用本文复制引用
王素裹,周文琪..整浇楼板对钢筋混凝土框架梁柱受力的影响分析[J].福州大学学报（自然科学版）,2017,45(4):517-522,6.基金项目
国家自然科学基金资助项目(51208114) （51208114）
福建省自然科学基金资助项目(2013J05070) （2013J05070）
福州大学科技发展基金资助项目(2012-XQ-34) （2012-XQ-34）
