斜腿刚构桥施工方法探讨

Study on construction method of slant legged rigid frame bridge

以宁连公路封闭工程A6标K311+268斜腿刚构桥施工为例,从坐标计算、混凝土施工、预应力张拉等方面对斜腿刚构桥施工方法进行了初步探讨,通过该施工方法的运用,从而保证了箱梁端部有承受足够局部应力的能力,不致出现裂纹。

Taking the construction of K311 ＋ 268 slant legged rigid frame bridge of A6 bidding sections of the closing engineering of Ning-Lian highway as an example, the paper preliminarily discusses the construction method of the slant legged rigid frame bridge from the aspects of the coordinate calculation, the concrete construction and the prestress tension, through the application of construction method, to guarantee that the end of the box girder has the ability to bear the enough local stress and dose not crack.