本发明涉及一种带扣，其具有充分的强度、构件数少、便宜且重量轻的特点。
The invention relates to a belt buckle, which has the characteristics of sufficient strength, fewer components, low cost and light weight.
为保证预应力构件的抗拉强度，对于预应力损失的控制是预应力施工中的关键。
In order to ensure tensile strength of prestressed member, the controlling prestress loss in construction is a key.
计算结果表明，闸门构件强度可靠指标基本满足一级建筑物安全水准。
Computation results show that reliability index of gate component strengths conforms with safety standards of the first class structure.
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