|
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。; o, i4 Q r" X- J4 \; u, z) m
接触过一些资料，比如什么时候不适用耐候钢
& q) ~9 ]# A5 n+ ]• 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。7 ^! I8 n) E( K$ ^, p) y" Q
• 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。
* ? u3 `) K2 C( \• If the steel is in direct contact with timber decking; timber retains moisture and may have been treated with corrosive preservatives. s/ \2 I* J2 ?& T
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。
?; Z# y- B' q• 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.5 p' v; m$ F" 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。: A5 Q1 p, J6 a' o/ c; d' ^1 a3 t9 ^
• If the location has high rainfall and humidity or is constantly wet. This situation is rare in Texas.
( q4 }/ h: t" G, ?如果该桥址有高雨量和湿度，或者是长久潮湿。
1 i/ |+ A5 b7 q7 N: x• If the structure provides low clearance (less than 8 to 10 feet) over stagnant or slow-moving water.
: S5 T8 ?; [- s8 B•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）。
5 G$ \& a p* w+ J7 @4 O
9 k- N/ Z+ k9 E* q7 _- I" }1 i- I | 
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
显身卡
