In construction of the grid shell roof of He nan Sports Center, engineers used 48mm×3\^5mm steel pipes to set up a over-site scaffolding and structural steel frame support system in order to install the steel roof structure.

Described hereby is the reinforcing technique adopted in construction of the tunnel passing under Qingshan Lake, using the H-formed steel truss monolithic formwork to avoid leakage and meet the waterproof requirement of the tunnel.

The Study on Static Performance and Dynamic Performance of Mega Steel Frame;

Based on the research results,the theoretical basis and some reasonable suggestions are put forward in the engineering design of mega steel frames.

Influence of second-order effects on response history analysis of steel megaframe;

Performance analysis of steel megaframe with sloping megacolumns;