多层钢结构体系及连接（Multilayer steel structure system and connection）.docVIP

多层钢结构体系及连接（Multilayer steel structure system and connection） The columns of the transverse rows should be set at the distance not greater than 4L (L is the span between the supporting spans). When the seismic fortification requirements are met, the distance should be determined according to the seismic requirements. The multi story frame structure can be divided into sections with varying section (column and support) along the rigid direction, but it prevents the sudden change of lateral stiffness of the floor. The characteristics of support structure system is low steel consumption and high rigidity, anti lateral force effect is obvious to see the advantages of simple structure, preferred when conditions allow timely; in the arrangement of support should pay attention to the reasonable and uniform, to avoid and reduce the structural stiffness offset center: Connection of multi-storey steel structures First, the general provisions of the connection: multi layer framework, the main components and joints should be welded, friction type high-strength stud connection or plug welding combination. With a combination of welding connection means between different parts in a connection respectively by high strength bolts and welding combination, a beam column connection the AuI division of the web and flange respectively by bolt, welding connection, the bolt connection part of the bearing capacity should be considered first bolt after welding temperature the degree of influence by multiplying a coefficient O.9; one to one connector to ask when the node of bolt welding connection should meet the following requirements will be the public node connection: At the same time using two methods of connection is not allowed (such as welding and the Ministry and what should be used in full penetration weld, the weld quality inspection requirements with the welding connection or splicing of a house or two quality requirements and parent material strength. Welded joint of plastic joint