通过对系杆拱桥作用在拱肋上的荷载性质进行了分析，采用能量法推导出无横撑下承式系杆拱桥侧倾稳定临界荷载的一般公式。
Using energy method, the general formula for calculation of lateral stability of through bowstring tied arch bridge without transverse beams given.
通过对系杆拱桥作用在拱肋上的荷载性质进行了分析，采用能量法推导出无横撑下承式系杆拱桥侧倾稳定临界荷载的一般公式。
With the background of lateral stability of non-range-spacer through bowstring arch, analytical approximations are derived in this paper using energy variational approach.
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