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。
5 B/ R: H: I+ x! X接触过一些资料,比如什么时候不适用耐候钢
2 B$ o, l; e' T: H4 K• 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。
2 w: e: @) F6 o- G6 x• 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。5 r( Q/ Z2 _+ B( _! H7 f
• If the steel is in direct contact with timber decking; timber retains moisture and may have been treated with corrosive preservatives.7 n+ q: ?5 S' B; g: W+ u
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。
- n* z0 z7 @6 r# a• 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.$ X/ g* c" Y2 J. ~1 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。% E+ k5 J% z9 w/ x0 k
• If the location has high rainfall and humidity or is constantly wet. This situation is rare in Texas.
$ Q) K+ p# A* x1 k如果该桥址有高雨量和湿度,或者是长久潮湿。3 m/ X) w" W" i- v) D) R
• If the structure provides low clearance (less than 8 to 10 feet) over stagnant or slow-moving water.: o& c! r. u3 r [
•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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