国产剧情AV麻豆香蕉精品,国产女人A级毛片18视频,人妻丰满熟人熟妇av无码,久久99国产精品9床震网站

          Language:CHINESESENGLISH

          Home > News > Steel house seismic level is how much?
          CONTACT US
          • Address:Pingtang Industrial District, Shipeng Village, Shishan Town, Nanhai District, Foshan City,
          • Phone:0757-81002668/0757-63323396
          • Fax:0757-81196682
          • Contact:Ben Zheng/13826981293 Kerry Lu/13751224830
          • E-mail:sbs@sbsprefabhouse.com
          • URL:http://www.creadir.com

          Steel house seismic level is how much?

          Time:[2015-10-24]  Hits:4750

          Guangzhou Steel tells you: Steel house seismic level is how much?
             1, the height near or equal to the height of the boundary should be allowed to bind irregularity of the house and grounds, ground conditions to determine the seismic level;
             2, in general, seismic level member of the structure should be the same; when the bearing capacity of a certain part of each member of the internal forces are to meet the requirements of 2 times the seismic effect combinations, and 7 to 9 degrees by members should be allowed to reduce seismic rating was OK . Guangzhou Steel
          Copyright:佛山市勝邦鋼結構有限公司 Foshan Shengbang Steel Structure Co., Ltd. Record Number:粵ICP備13078463號