two-direction truss

Aimed at the two types of high speed railway long span steel bridge-slab truss composite system and arch truss composite system, an analysis of random vibration response of time dependant train bridge system has been made in detail.

本文针对高速铁路大跨度钢桥板桁或拱桁组合体系两种主要桥式，对列车与桥梁时变系统的随机振动响应作了较详细的分析。

The double groove steel is suspended under the two nodes of bottom chord of steel roof truss to prevent the bottom chord from stretch bending.

文章论述了在设计中采用钢屋架下弦两节点下悬吊双槽钢作为分布梁避免钢屋架下弦拉弯工作。

An overpass corridor, located at 23.800m high for connecting two main buildings of the library and the human college of a university, is a prestressed reinforced concrete truss structure. Two ends of the truss structure are simply supported on two main building structures respectively.

某大学图书馆与人文学院主楼在23.800m高空处通过一混凝土空间桁架连廊相连，该连廊结构为预应力混凝土桁架结构，简支于两端主结构上。

The truss comprises four plane trusses each two panels and each panel has one diagonal brace.

桁架由四个平面桁架组成,每两个节间及每个节间均有对角撑.

Already assembled truss is lift to high platform by two 17150 type crawler cranes in the two ends.

已拼装好的桁架在端头各采用1台7150型履带吊吊装至高空平台上。