4 ) the different between global ductility gained using fully restrained model for truss connections and partial restrained model for truss connections indicate the fully restrained is better for the global ductility of the staggered truss steel framing 5 )通过桁架采用不同连接计算模型的比较，指出在钢结构交错桁架的制作中，无论是混合桁架体系还是空腹桁架体系，都希望能够保证桁架腹杆与弦杆的可靠连接。
