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: k9 n9 ~3 S2 m8 c接触过一些资料,比如什么时候不适用耐候钢/ i) Q& u; ~6 N6 Q
• 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。
( i: j5 s" R; @! |• 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。
4 W$ L0 I2 C v& g/ C- R• If the steel is in direct contact with timber decking; timber retains moisture and may have been treated with corrosive preservatives." |( D5 u+ l: O5 Y
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。* t1 A+ P4 C9 E# H! s6 Y
• 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.
) c! U, u( K' p) V% W3 h2 w, u, y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。
2 C3 M5 w1 j$ a• If the location has high rainfall and humidity or is constantly wet. This situation is rare in Texas.
/ p, x5 ?8 b$ _+ A9 M如果该桥址有高雨量和湿度,或者是长久潮湿。
4 o. U0 n, X1 [: j: ^• If the structure provides low clearance (less than 8 to 10 feet) over stagnant or slow-moving water.4 d. E& d5 M y) F( `1 X
•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)。) g: q. R7 F6 x# l& H6 h% P
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