The Performance Research On The Beam-column Connections Of Cold Bending Light-gauge Steel C Section With Angle At Bottom And Top Of The Web

The practicable design of nodes in the steel structure design is an important aspect of ensuring the safety of the structure. Their performance directly affects the stability of the structure. Their performance directly affects the stability of the structure, strength and stiffness properties. The connections would be assumed to be completely rigid or articulated ideals in the design and analysis proceeding based on the traditional theory. But the nodes designed based on the assumption may be unsafe or conservative, and do-not truly reflect the actual behavior of the nodes. The actual beam-column nodes with angle at both top and bottom of the web are deformable and nonlinear, and their behavior is the behavior between ideal nodes and fully articulated rigid nodes.By introducing the results of pseudo static one way loading test of joints connecting angle of the beam-column with a double web, some important conclusions can be found, and the main factors affection the performance of the connections are analyze in this paper.Based on the results in contrast with the test, The numerical simulation program of the orthogonal (test) design are employed. 3D detailed nonlinear finite element simulation analysis of the main completed by using the finite element analysis software (ANSYS). These main components include the bottom webs angle, high-strength bolts, flange of beams and flange of columns. The M-- relations, stiffness initial connecting link performance data are found by the analysis described previously.The value of the power degree which the initial stiffness and the ultimate moment capacity are affected by the main factors are calculated by orthogonal (test) differential design method. The initial stiffness and the ultimate moment capacity in one way loading and the function relations between the initial link stiffness and the thickness of the top and bottom angles and the diameter of bolts are derived by orthogonal (test) multiple linear regression analysis method. The approximate linear regression equation which can be used to compute ultimate moment capacity and initial link stiffness.