The suggestions on erecting a shear key and its formula are also proposed in view of the fact that there are no specific methods for erecting the shear keys in the regulations.
对规程中抗剪键的设置不够具体等问题，提出抗剪键的设置建议及计算公式。
Generally speaking the loading capacity of shear key is mainly governed by embedded part, while quite few test have been taken to the embedded part when the on -going specification is established.
一般说来，剪切键承载能力主要受预埋件控制，但在制定现行规范时对多排多列角钢预埋件的试验研究较少。
Prefabricated shear wall and composite plate are the key components of the production cost of PC components.
预制剪力墙和叠合板建安费用是影响PC构件生产费的关键因素。
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