应变效应：金属导体的电阻值，随着它受力所产生机械变形（拉伸或压缩）的大小而发生变化的现象，称之为金属的电阻应变效应。
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在上海，海潮负荷引起的应变效应在数值上与起潮力直接引起的应变效应相当，经海潮改正后，计算结果的精度有显著提高。
In Shanghai the strain effect of ocean tide loads approached the direct effect of tide-generating force, and after correction of ocean tide loads the accuracy of calculation was distinctly improved.
混凝土约束改变了有效应力-应变关系：造成强度和临界应变的增加。
Confinement of concrete results in a modification of the effective stress-strain relationship: higher strength and higher critical strains are achieved.
在此基础上，初步分析了由于海潮所导致的次级效应及其影响，给出了应变分量的计算方法。
On such a basis, the secondary effects caused by the tide are analysed with the calculation method for the component of strain presented.
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