本实用新型为张拉钢铰线的专用锚具。
The utility model relates to a special anchor tool used for tensioning steel strands.
在规则边界的薄板的塑性极限分析过程中，通常会有产生塑性铰线这一现象。
Some can get holomorphy solutions. In the course of plastic limit analysis, maybe there are the phenomena of producing yield-line.
首先利用变分原理确定板的负塑性铰线方程，继而推导出极限承载力的表达式。
The negative plastic hinge line in the plate was evaluated by using variational approach, then an equation for calculating the ultimate load carrying capacity was developed.
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