tubular bracing 中文意思是什麼
tubular bracing
解釋
管狀撐桿-
The construction of concrete filled with steel tubular ( cfst ) arch bridge has been developed in recent ten years in our country. although about 40 bridges whose span are longer than 80 meters are constructed, there are only two through tied ? rch bridges without wind bracing, including guangzhou jiefang bridge
近10年來，我國鋼管混凝土拱橋建設發展迅猛，已建成的跨度大於80米的約有40多座，而無風撐下承式系桿拱橋僅2座。
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