In the welding construction of the main tower at stage A of the World Trade Center phase Ⅲ,some difficulties were settled,inclusive of deformation control in welding the huge cross-section column,welding super long seam in the steel plate wall,inclined welding and thick plate welding at minus temperature as well as welding of suspended truss etc.

Cyclic test of thin steel plate shear wall with slits;

Elastoplastic shear bearing capacity analysis of steel plate shear walls;

Experimental investigation and simulation analysis of new steel plate shear walls with slits;

Study on mechanical property of steel plate shear walls;

The steel plate shear walls with two-side connections and the steel- concrete composite shear walls with two-side connections that are connected only with frame beams by high-strength bolts or welding seams, possess the following advantages over the shear walls with four-side connections: They can reduce the reliability on frame columns and thus prevent the premature failure of columns.

Seismic response analyses of frame structure with slit steel shear walls;

Basis on the FEM analyses and test study of the slitted steel shear wall, the formulas to estimate the elastic lateral stiffness and shear bearing are deduced in this paper.

Based on the FEM analyses and test study of the steel shear wall with slits, the formulas to estimate the elastic lateral stiffness and shear bearing are deduced in this paper.

Research of shear resistance static behaviors of steel-plate shear walls with slits;