Damage in concrete medium leads to a variation of elasticity and viscosity. Damage theory with double parameters is presented to describe the damage.

混凝土的损伤会引起弹性和粘性性质的改变，利用弹性和粘性的双参数来描述损伤，建立双参数损伤理论。

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Damage in concrete medium leads to a variation of elasticity and viscosity. Damage theory with double parameters is presented to describe the damage.

混凝土的损伤会引起弹性和粘性性质的改变，利用弹性和粘性的双参数来描述损伤，建立双参数损伤理论。

youdao