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无粘结预应力混凝土具有施工方便、摩擦系数小等优点,但又有预应力筋单价高,钢材极限强度损失大,对锚具质量和防腐措施要求严格等缺点,但预应力体系能满足特殊功能的建筑造型,所以在今后的建筑发展中前景广大,针对框架无粘结预应力后张法施工技术展开论述。
Unbonded prestressed concrete has the advantages of convenient construction, low coefficient of friction and so on, but there are some shortcomings such as high unit price of prestressing tendons, large ultimate strength loss of steel, strict requirements on quality and anticorrosive measures of anchors, etc. However, prestressed system can meet special requirements Function building shape, so in the future development prospects of the vast majority of buildings, for the framework of non-bonded prestressed post-tensioning construction technology discussed.