brittle shear failure 中文意思是什麼
brittle shear failure
解釋
脆性剪力破壞-
Abstract : based on the data obtained from field observations and deformation monitoring, this paper deals with the deformation and failure of a double - decked slope composed of soft rock strata in its lower part and hard - brittle rock strata in its upper part. it is demonstrated that the deformation of this kind of slopes is always initiated by the non - homogeneous rheological compression of the lower soft rock strata, leading to the tension fracture and toppling of the upper hard rock strata, and at last the sliding of the whole deformed body will be caused by the shear failure along the stress - concentration zone in the lower soft rock mass under the actions of the gravitational loading and infiltration water
文摘:以現場考察和變形監測資料為依據，探討一個下部有軟弱基座，上部為硬脆性坡體的「二元結構」邊坡的變形破壞問題，揭示這類邊坡的變形總是以下部軟弱巖體的不均勻壓縮流變為先導，進而引起上部硬脆性坡體的拉裂與傾倒，最終通過滲入水的作用，使下部承載狀況已進一步惡化了的軟弱巖體，沿剪應力集中帶發生剪切破壞而導致整個變形坡體的下滑。 -
Failure or even collapse of bridge structures in past earthquakes were largely. in particular, shear failure of short bridge pier columns is the most dangerous failure pattern due to the brittle nature. consequently, it is quite meaningful to study the seismic resistance performance and retrofitting for reducing bridge damages and losses
從已建橋梁在歷次地震中破壞的共同特點可以看出:現代混凝土橋梁結構中，因鋼筋混凝土橋墩破壞導致橋梁嚴重破壞甚至倒塌，已成為橋梁震害的主要特點，特別是橋梁短柱的破壞尤為嚴重，而脆性剪切破壞是鋼筋混凝土短柱最為危險的破壞方式之一。
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