Top chords of Pyay Irrawaddy River Bridge in Myanmar are of steel box members.
缅甸卑谬依诺瓦底江大桥的上弦杆为钢箱杆件。
In order to let the slabs help the top chords of the steel trusses resist the giant compressive forces, slab truss composite structures are used throughout the main bridge.
为了使上层公路桥面板能帮助主桁上弦杆抵抗巨大的纵向压力，正桥全部采用混凝土桥面板与钢桁梁共同作用的板桁结合梁。
In order to let the slabs help the top chords of the steel trusses resist the giant compressive forces, slab truss composite structures are used throughout the main bridge.
为了使上层公路桥面板能帮助主桁上弦杆抵抗巨大的纵向压力，正桥全部采用混凝土桥面板与钢桁梁共同作用的板桁结合梁。
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