For composite staggered truss structures, the truss was simplified as two stories with lateral bracing spring model.
对于混合式交错桁架结构的稳定性，考虑了桁架层侧移刚度简化成两层带侧向弹簧的计算模型。
The new arch spring of composite truss arch bridge is used to support the middle truss arch of the bridge and the structural formation and force conditions of the joint of the spring are complicated.
桁式组合拱桥的新拱脚支撑着中部桁架拱，新拱脚结点构造和受力复杂。
The new arch spring of composite truss arch bridge is used to support the middle truss arch of the bridge and the structural formation and force conditions of the joint of the spring are complicated.
桁式组合拱桥的新拱脚支撑着中部桁架拱，新拱脚结点构造和受力复杂。
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