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在混凝土建筑物中,在那些设计上认为受拉的部位,都要配置适当的受力钢筋,以承受拉应力。为了了解构件的受力状态并监视其安全性,工程上常常埋设一些钢筋计。但是,如何由测得的钢筋应力来推算混凝土的应力,迄今还没有一个统一的方法。工程上有一个概念,即认为钢筋受拉,混凝土也受拉,钢筋受压,混凝土也受压,并认为在荷载作用下,钢筋和混凝土产生相同的变形,因而在弹性范围
In concrete structures, in those parts of the design that are considered to be tensioned, suitable stressed bars shall be provided to withstand the tensile stresses. In order to understand the components of the state of stress and monitor its safety, engineering often buried some steel meter. However, there is no unified method to calculate the stress of concrete from the measured steel bar stress. There is a concept in engineering, that is reinforced tensile, concrete is also tensioned, steel compression, concrete is also under pressure, and that under the action of load, reinforced and concrete produce the same deformation, and therefore in the elastic range