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厦漳跨海大桥南汉桥主承台施工采用钢吊箱的结构形式,封底施工后在低水位情况下浇注第一层承台混凝土,按常规方法计算得护筒与封底混凝土黏结力不满足要求,故拟在全部护筒上采取加强措施。为精确计算各护筒实际黏结力分配值,采用有限元软件对封底混凝土进行分析,找出最不利护筒所在位置并仅对此进行加强,从而更准确地指导施工。
The construction of Nanzhang Bridge main bearing platform of Xiamen Zhanghai Sea Bridge adopts the structural form of steel cofferdam. The first layer capped concrete is poured under the condition of low water level after the back cover construction, and the bond strength between the casing and the back concrete is not satisfied according to the conventional method Requirements, it is intended to take all measures to strengthen the casing. In order to accurately calculate the distribution of the actual value of each binder, the finite element software was used to analyze the concrete backer to find out the location of the most unfavorable casing and reinforce it only, so as to guide the construction more accurately.