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我亲眼见的比较少,目前为止只亲眼见到一座建筑结构采用耐候钢。
! ^& a$ Q9 t. x' h8 u接触过一些资料,比如什么时候不适用耐候钢# U4 \2 k& X; y8 o. a
• If the atmosphere contains concentrated corrosive industrial or chemical fumes.如果大气中富含有腐蚀性的工业或化学烟雾。
3 p* O' j) s' C1 u• If the steel is subject to heavy salt-water spray or salt-laden fog.如果钢材暴露于浓度较大的盐水喷雾或含盐雾。; S; K& Z( v/ p9 Z; R4 v8 L
• If the steel is in direct contact with timber decking; timber retains moisture and may have been treated with corrosive preservatives.* j4 ` i0 Y' p' T6 D! y; K
如果钢材直接接触木桥面,木材保有水分,并可能已被防腐剂处理。$ c: T! W( t! l
• If the steel is used for a low urban-area bridge or overpass that creates a tunnel-like configuration over a road on which deicing salt is used. In this situation, road spray from traffic under the bridge causes salt to accumulate on the steel.) P# x2 s4 [: }& j/ T; b& M' [* G8 n
如果钢是用在使用融雪剂的道路隧道桥或立交桥之下的城市桥梁。在这种情况下,道路交通向下方桥梁喷洒导致盐积聚在钢材上。# z7 M3 Y& g! c
• If the location has high rainfall and humidity or is constantly wet. This situation is rare in Texas.
4 t- D+ ]: [- G1 ?+ V2 b9 a Y如果该桥址有高雨量和湿度,或者是长久潮湿。, W! w; M, T% h1 w+ f
• If the structure provides low clearance (less than 8 to 10 feet) over stagnant or slow-moving water.
! p2 ^# t1 I) u•如果结构跨越死水或缓慢移动的水的净空较小(小于8到10英尺)。1 F4 k* z* h& I- @& p2 a$ L+ i
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