TBT 2820.3-1997 铁路桥隧建筑物劣化评定标准 支座

11TB/T2820.1—972TB/T2820.2—97123452TB/T—123—————TB/T1225%3tgα0.454344TB/T5566ABCDAAAA111AAAA1BACD5234TB/T2()()AA()3mmA1()10mm1mm3mm50%5mm2mmB()5mm10mm1mm3mm25%/5mm2mm/2mm,25%C()/1mm////1mm,5mm/D()////////1mm,30mm/3AA2mm50%100mm//tgα0.4525%A12mm25%25%/25%B1~2mm25%/10~25%///6C0.5~1mm10%/10%///D()0.5mm/////TB/T4(ho)AA()ho0.2mm//50%/A1()///10mm20%20%/B()0.2mm10mm10%/C/0.5mmho1.0mm///D//h1.0mm///