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混凝土内钢弦式应变计温度影响探讨 被引量:2

Influence of temperature on wire strain gauge in concrete
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摘要 通过对比分析钢弦式应变计和差阻式的工作原理,澄清了长期以来水电工程人员对钢弦式应变计监测钢结构应力应变和混凝土结构应力应变测值计算方法的误解;提出了钢弦式应变计监测混凝土总应变的概念和计算方法;强调混凝土内埋设无应力计的重要性,以及混凝土内应力应变的计算方法。 By comparison between the working principles of wire strain gauge and differential resistor sensor, misunder- standing of calculation method for stress-strain of steel structure and concrete structure measured by wire strain gauge was clarified. Followed, conception and calculation method for monitoring of stress-strain of concrete structure by wire strain gauge was advanced. At last, the paper stressed the importance of embedded non-stress meters in concrete and the calculation method for concrete stress-strain.
出处 《大坝与安全》 2012年第2期39-42,共4页 Dam & Safety
关键词 钢弦式应变计 温度 热膨胀系数 混凝土总应变 应力应变 wire strain gauge temperature thermal expansion coefficient total strain of the concrete stress-strain
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