他以型钢（如角钢）外包构件的四角或者两角，并以横向钢板将四角或者两角的

He steel corners (e.g., angles) of the outer member or corners, the four corners of the plate and a transverse beam connected to the corners or as a whole, making the steel skeleton member is reinforced closely linked, is reinforced in order to provide strength and ductility of the member;

He outsources the four corners or corners of the components with the type steel (e.g. angle steel), and connects the four or two-corner steel into a whole with the horizontal steel plate, making it a steel skeleton closely connected with the reinforced member, so as to mention the carrying capacity and elongation of the reinforced components;

He uses section steel (such as angle steel) to wrap the four corners or two corners of the member, and uses transverse steel plate to connect the four corners or two corners of the member into a whole, making it a steel framework closely connected with the strengthened member, so as to improve the bearing capacity and ductility of the strengthened member.<br>