污污污www精品国产网站_六十路av_午夜天堂av_台湾佬综合网_成人免费版欧美州_超碰色偷偷_西西444www无码大胆_亚洲拍拍视频_日韩欧美天堂_av在线网页_aaa亚洲精品_欧美一级爽片_精品在线一区二区_女郎av在线_午夜一区二区三区四区

Seismic structure of single steel plant what way?

Seismic structure of single steel plant what way?

Seismic structure of single steel plant what way?
1. Roof construction approach: simply the same way single-seismic construction steel plant roof and reinforced concrete columns plant.
2. column, beam structure approach: In order to control column, beam section does not appear local buckling, single frame column, beam section plate thickness ratio limits, except to be consistent with existing "Steel Design Code" GB50017 elasticity of steel relevant provisions of the stages of design, there are provisions under the table. Member web thickness ratio can be reduced by longitudinal stiffeners setting.
3. Guangzhou way between construction steel column support when cross cranes, plant unit should be set up between the upper and lower central column support, and should be added at the plant unit on both ends of the column support; 7 degrees of structural units of length greater than 120m, 8, 9 degrees of structural units of length greater than 90m, preferably in the middle third of the section setting unit between two up and down the column support. No crane factory longitudinal member section is small, does not necessarily support studs must be located in the middle. Conditional, inter-column support energy dissipation can be supported. Guangzhou Steel