摘要
设计人员进行结构设计时,需要关注施工中可能出现的各种过程及结构的变化,施工单位也必须严格按照相关标准规范施工作业。某商场在施工过程中,为了加快模板的使用率,过早地拆除后浇带两侧的支撑,引起了楼面下沉达9 cm左右。采用有限元软件ANSYS,将后浇带处的连接钢筋模拟为杆单元,建立了楼层间支撑拆除后的有限元模型,经过分析与计算,确定了结构受损部位,得出计算模型最大挠度11 cm左右,与实际结构基本吻合。并且进一步验算了在现有几何下封闭后浇带后结构的承载能力。
When designing structures,engineers should pay attention to various structural changing that may arise in the construction process.Construction enterprises should do their work strictly according to relevant laws and regulations.In the construction process of a shopping mall,the provisional supports on both sides of post-cast strip were removed earlier than required in order to improve the utilization of molds,which caused floor sinking deflection up to about 9 cm.Finite element software ANSYS was used for simulation of the process in which the reinforcement across the post-cast strip was modeled as link element.The finite element model of structure without support between adjacent floors was made.After analysis and calculation,the damaged parts of the structure were located,and the maximum deflection of prediction was 11 cm or so,which was consistent with the actual structure.Furthermore,the capacities of the structure with the existing geometry were analyzed for afterwards strengthening after closing the post-cast strip.
出处
《工业建筑》
CSCD
北大核心
2013年第2期159-163,共5页
Industrial Construction
