亚洲精品在线观看少妇,国产激情亚洲一区,国产人碰人摸人爱免费视频,久久国产精品一区二区,久久国产精品免费看,日韩欧美视频熟女,婷婷午夜电影在线观看,色婷婷国产麻豆精品,八年沉淀只做精品,国产在线视频专区,日韩欧美纯爱电视剧电影免费观看,亚洲国产日本免费观看,天堂亚洲欧美日韩一区二区,中文字幕有码系列在线观看,久久日韩精品一区,小明欧美精品视频在线观看,91av成人一区二区三区,欧美日韩亚洲综合在线一区二区,亚洲一区二区二三区日日骚,在线观看欧美一区二区三区精品,日本欧美黄色一级片,欧美av一区二区三区在线观看,91成人国产麻豆一区二区

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