利用支撑宏观变形计算支撑轴力的方法研究  

Research on the Method of Calculating the Axial Force of Support Using Macro Deformation of Support

作　　者：高祥祥 杨威 丘柏盛 孙杏华 彭俊潘 GAO Xiangxiang;YANG Wei;QIU Baisheng;SUN Xinghua;PENG Junpan(Shenzhen Building Safety and Construction Quality Testing and Appraial Center;Bureau Of Public Works Of Shenzhen Municipality)

机构地区：[1]深圳市房屋安全和工程质量检测鉴定中心 [2]深圳市建筑工务署文体和水务工程管理中心

出　　处：《广东建材》2024年第8期114-118,共5页Guangdong Building Materials

摘　　要：混凝土支撑由于其高强度和强稳定性的优点,经常被用做基坑支护工程的支撑结构,支撑轴力监测是判断支撑支护结构安全的重要监测指标。本文通过对利用钢筋应力计、监测支撑梁两端宏观变形两种计算支撑轴力方法的研究,提出根据支撑梁两端宏观变形监测点计算支撑轴力的简化公式。当现场出现利用预埋钢筋应力计测量支撑轴力时,监测点被破坏且无法恢复后,可以用宏观变形监测点间接反映支撑梁的受力情况。Due to the advantages of high strength and strong stability,concrete support is often used as the structural support of foundation pit supporting project.The monitoring of support axial force is an important monitoring index to judge the safety of supporting structure.In this paper,through the study of the two methods of calculating the support axial force by using the reinforcement stress meter and monitoring the macro deformation at both ends of the support beam,a simplified formula for calculating the support axial force according to the macro deformation monitoring points at both ends of the support beam was proposed.When the axial force of the support is measured by the preembedded reinforcement stress meter,the monitoring point is destroyed and cannot be restored,the macro deformation monitoring points can be used to indirectly reflect the stress of the supporting beam.

关 键 词：支撑轴力 宏观变形 钢筋应力计 

分 类 号：TU753[建筑科学—建筑技术科学] TU375