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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。9 y* d( n2 g, U) p+ I- @4 b/ `- y
接触过一些资料，比如什么时候不适用耐候钢
4 h5 R" Y" l# n5 Z3 `. ~; t• 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。0 k8 Y: O6 P+ M/ Z2 a8 r$ R: y
• 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。
. o# w0 t3 g Q: b& @• If the steel is in direct contact with timber decking; timber retains moisture and may have been treated with corrosive preservatives.
/ q8 {- D/ g" W1 |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。 M+ F, Y, V$ D- o
• 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.
8 O1 E1 G( B/ p( e) B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。' _% b4 q, W- t+ [: {+ P; [ I+ f
• If the location has high rainfall and humidity or is constantly wet. This situation is rare in Texas.0 k! C. B8 t0 H( L' M: F
如果该桥址有高雨量和湿度，或者是长久潮湿。
: h+ }0 M6 R2 \/ ]! a% |• If the structure provides low clearance (less than 8 to 10 feet) over stagnant or slow-moving water.
. F- E* r# U6 o: V4 c ]2 \•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）。
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