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预应力钢筋混凝土梁式桥目前多采用后张法来预加应力,这里介绍的就是后张法的施工工艺要点。(一)制造钢丝束将高强钢丝根据设计的要求整直、截断、捆扎成束,钢丝束包括捆扎成束的钢丝、铁皮套管、三通管与锚头四个部分,其制作步骤如下:(1)整直钢丝整直钢丝的机具包括:1.支承转盘;2.导向架;3.整直机;4.整直工作台;5.牵引小车;6.钢丝截断器;7.电动卷扬机等。
Prestressed reinforced concrete beam bridge is currently using post-tension method to prestress, here is the post-tension method of the construction process points. (A) the manufacture of steel wire The high-strength steel wire according to the requirements of the design straight, cut off, bundled into bundles, bundles of steel strands, including strapping bundled steel wire, tin casing, tee and anchor head four parts, the production steps are as follows : (1) Straightening steel straightening wire machinery include: 1. Bearing turntable; 2. Guiding frame; 3. Straightening machine; 4. Straightening table; 5. Traction trolley; 6. Steel truncator; Electric winch and so on.