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摘要：
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本文结合韩庄大桥吊杆张拉施工过程 ,采用空间刚架结构有限元计算程序对钢筋混凝土系杆拱桥吊杆张拉过程的内力进行了分析计算 ,揭示了吊杆内力在张拉过程中的变化特性 ,探讨了吊杆张拉控制方法 ,并且分析了不同的张拉次序对吊杆内力的影响。文章对指导施工有较大的实用意义
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In combination with the tensioning operations of suspenders for Hanzhuang Tied Arch Bridge, the internal forces in suspenders during their tensioning for a reinforced concrete tied arch bridge were calculated and analyzed by using a finite element computation programme for spatial rigid framed structure. The calculations and analyses showed the changing behaviour of the internal forces in the suspenders during the tensioning operations. The methods to control the tensions in the suspenders and the influence of different tensioning sequence upon the internal forces were also discussed and analyzed. The paper is of greater practical significance for constructions.
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