某复杂工程楼板应力分析

发布时间：2018-04-20 01:11

本文选题：楼板应力分析 + 超长结构　；参考：《结构工程师》2016年06期

【摘要】：以上海某在建工程为背景,系统介绍了开洞较多的地下室顶板的嵌固能力、超长地下室温度应力控制及大开洞及多塔结构楼板计算分析及加强措施。利用ETABS有限元软件及YJK软件建立了相关模型,通过将地震作用简化为节点荷载作用在上部结构质心处,对首层楼板进行了应力分析,得到了楼板在多遇地震下和设防地震下的应力水平。分析结果表明,地下室顶板具有较好的嵌固能力,可不考虑该楼板对上部结构产生的多塔效应,设计时为了更好地保证安全性,将地下一层楼板作为结构嵌固端。而地下室楼板在温度应力作用下楼板应力分析及大开洞及多塔结构上部楼板地震作用下楼板应力分析结果表明可以通过设计中局部附加楼板受力钢筋满足结构受力要求。
[Abstract]:Taking a construction project in Shanghai as the background, the paper systematically introduces the fixing capacity of the basement roof with more openings, the temperature stress control of the super-long basement, the calculation, analysis and strengthening measures of the large opening and multi-tower structure floor. By using ETABS finite element software and YJK software, the related model is established, and the stress analysis of the first floor slab is carried out by simplifying the seismic action to the node load acting on the center of mass of the superstructure. The stress level of floor under frequent earthquake and fortification earthquake is obtained. The analysis results show that the basement roof has better embedding ability, and the multi-tower effect of the floor slab on the superstructure can not be considered. In order to ensure better safety, the underground floor slab is used as the embedded end of the structure. The stress analysis of basement floor under the action of temperature stress and the analysis of floor stress under the action of large opening hole and upper floor of multi-tower structure show that the stress of the floor can meet the requirements of the structural stress through the local reinforcement of the additional floor in the design.
【作者单位】：华东建筑设计研究院有限公司;
【分类号】：TU93;TU352.11

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