欧美午夜精品人妻久久久久,刑警娇妻穿着乳环被调教 ,夜夜操亚洲女人,一级a做片免费久久无码

Single steel plant horizontal, vertical seismic calculation method What?

Single steel plant horizontal, vertical seismic calculation method What?

Plant lateral seismic calculation Normally, the roof should be included in the spatial deformation analysis; use light roof, the plane can be calculated bent frame. Guangzhou Steel
Plant longitudinal seismic calculation, the choice of the following methods:
Lightweight wallboard or wallboard plant and a large column of flexible connection, according to the single particle calculations, seismic columns each column should assign the following principles:
① reinforced concrete roof without purlins column column stiffness can share allocation;
② lightweight roof can withstand the share of pillar column gravity load representative value distribution;
③ reinforced concrete roof purlin desirable results above the average of the two distribution. Guangzhou Steel