摘要
钢筋计是岩土工程安全监测中常用的一种仪器。分析总结相关现行国家标准及水利、电力行业标准,结合现场应用,对钢筋计的标定、长期稳定性、灵敏度与量程、不同直径钢筋计之间的替代、安装方法以及钢筋应力计算等方面存在的常见问题,提出相应的解决办法。钢筋计计算应力包括荷载与非荷载应力,非荷载应力是计算成果出现压应力的常见原因,在资料分析时应考虑到这方面的影响。
Rebar strain meter is an instrument commonly used in safety monitoring of geotechnical engi-neering. This paper analyzes and summarizes relevant current national standards as well as water conser-vancy and electric power industry standards. Combining with field application, the common problems ex-isting in the calibration, long-term stability, sensitivity and range, substitution between rebar strain me-ters of different diameters, installation method and rebar stress calculation are discussed, and the corre-sponding solutions are put forward. The stress calculation of rebar strain meter includes the load stressand non-load stress. Non-load stress is the common cause of compression stress in calculation result.The influence of non-load stress should be taken into account in data analysis.
引文
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