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为改善桥梁钢抱箍受力性能,以面面接触分析为手段,研究了温度作用对不同直径钢抱箍承载能力的影响。简单介绍了接触分析的基本理论、算法和影响结果精度的因素。计算结果表明:温度作用对钢抱箍承载能力产生相当大的影响,钢抱箍直径越大,承载能力损失越多,并且归纳出钢抱箍温度每升高1℃,每延米周长承载能力降低0.086%,给出了减少温度对钢抱箍承载能力影响的措施。
In order to improve the mechanical properties of bridge hoops, the influence of temperature on the bearing capacity of hoops with different diameters was studied by surface contact analysis. Briefly introduced the basic theory of contact analysis, algorithms and factors affecting the accuracy of the results. The calculation results show that the temperature effect has a considerable influence on the bearing capacity of steel hoops. The larger the diameter of steel hoops is, the more the bearing capacity is lost. And the temperature of steel hoop is increased by 1 ℃ per circumference, Ability to reduce 0.086%, gives the measures to reduce the impact of temperature on the bearing capacity of steel hoops.