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预应力混凝土施工的关键,主要在于如何按照设计要求建立有效预应力值。当预应力损失越大,所建立的有效预应力值就越小,其预应力的效果也就越差。因此,可靠地建立预应力值,乃是研究和发展预应力混凝土施工工艺的重要环节。现谨就预应力混凝土施工中引起预应力损失的主要因素进行
The key to the construction of prestressed concrete is mainly how to establish an effective prestress value according to the design requirements. The greater the loss of prestress, the smaller the effective prestress value established and the worse the prestress effect. Therefore, the reliable establishment of prestressed values is an important step in the research and development of prestressed concrete construction technology. Now I would like to discuss the main factors causing the loss of prestress in the construction of prestressed concrete.