为了探究粘贴钢板加固桁架拱桥的加固效果，以工程实际桥梁为例，采用有限元分析软件 Midas ／Civil 建立该桥的空间模型，分别对加固前后桥梁进行静载试验，通过对比分析加固前后的实测挠度值与应变值，得出结构的挠度值和应变值分别下降了29．2％和21．2％，表明钢板加固提高了结构的刚度和强度，且结构的极限承载能力已满足公路－Ⅱ级设计荷载等级的要求，为同类型现有桥梁的维修加固提供一定的参考借鉴作用。%In order to explore the strengthening effect of pasting steel truss arch bridge reinforce-ment,bridge as an example to the engineering practice,based on finite element analysis software Midas /Civil to build the space model of the bridge,respectively,before and after the reinforcement of bridges static load test,reinforced by comparing before and after analysis the measured deflection and strainde-flection and strain values obtained structures were reduced by 29.2% and 21.2%,showing that the stiff-ness and strength of steel reinforcement to improve the structure,and the bearing capacity of the structure has to meet the requirements of the highway grade-Ⅱ design load leve,for the same type of existing bridge maintenance to provide certain reference.
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