论文部分内容阅读
预应力混凝土在桥梁工程中已普遍采用,钢绞线张拉伸长值及锚固张拉力的计算作为质量双控指标,相应规范均已有明确规定,但钢绞线张拉伸长值计算及锚塞回缩量的量测方法则在实际施工中存在较大差异,本人结合宁淮高速公路施工实践,介绍张拉伸长值计算与锚塞回缩量的量测方法,供从事预应力施工的同仁参考。
Prestressed concrete has been widely used in bridge engineering. The calculation of the tensile elongation of steel strand and the tensile force of anchorage are taken as the double-control index of quality. The relevant norms have been clearly defined. However, the calculation of tensile elongation of strand and The method of measuring the amount of retraction of the anchor is quite different in the actual construction. Based on the construction practice of the Ning-Huai Expressway, the method of measuring the elongation of the anchor and the method of measuring the retraction of the anchor is introduced for prestressing Construction colleagues reference.