施工技术 2016年6月上 12 CONSTRUCTION TECHNOLOGY 第45卷第11期 D0I:10.7672/8js2016110012 高大模板支架结构安全状态预警研究 师宝禄 (中铁建设集团有限公司，北京100040) [摘要]为防止高大模板支撑系统在服役过程中发生整体失稳或倒塌，减少伤亡与财产损失，介绍一种圆钢管多功 能模板支架监测系统的原理及其组成，以某工程A座高大模板（支撑架）为工程背景，并通过提取特征值屈曲分析 中的一阶屈曲模态，进行缺陷敏感性分析，之后考虑初始几何缺陷进行非线性有限元分析，给出架体在正常使用状 态与极限状态下的预警值，将预警值导人到开发的软件中进行实时监测，达到预警值时进行报警信息的推送. [关键词]高大模板；脚手架；敏感性；预警值；有限元分析 [中图分类号]TU755.2;TU731.2 [文献标识码]A [文章编号]1002-8498(2016)11-0012-03 The Early Warning Research of High and Large Formwork Support System Safety Status Shi Baolu (China Railway Construction Group Co.Lad.Beijing 100040 China) Abstract:In order to prevent overall instability or collapse of high and large formwork system in the process of its service and reduce casualties and property losses this paper introduces the principle and structure design of a monitoring system of a tubular scaffold it is based on the engineering background of high and large formwork in a building and taking the first mode of eigenvalue analysis as the initial geometrical imperfections to analyze imperfection sensitivity according to the result of nonlinear finite element analysis considering initial geometric imperfections the warning value of normal bearing capacity and ultimate bearing capacity of the frame can be obtained to import into the software so the warning messages can be pushed when the warning value is reached. Key words:high and large formwork scaffolds;sensitivity;early warning value;finite element analysis 1监测系统原理及组成 碗扣式脚手架力学传递方式相比，多功能模板支架 本文采用的多功能模...
高大模板支架结构安全状态预警研究.pdf
