Elasto-plastic Properties of Panel Zones and Effects on Story Drift of Steel Frames
Using the plastic shear deformation of panel zones (PZs) to increase the ductility and seismic energy dissipation of structures is a common practice in most countries specifications. This makes PZs generally yielding before columns and beams, and the shear deformation of PZs is relatively large. In order to explore the elasto-plastic properties of PZs, tests of different types of beam-column connections under monotonic loads were conducted firstly. Focus of tests is to explore the influence factors on elasto-plastic properties of PZs. Then based on test results and existing research data, simplified calculation methods of PZs strength and stiffness in the elastic and elasto-plastic stage were derived, and bilinear relationship expression of PZs moment-rotation was also given. Finally, the simplified calculation method for considering the effects of PZs elasto-plastic shear deformation on story drift of steel frames was presented.
panel zone strength stiffness story drift steel frames
Bing Guo Xiaotong Peng
College of Civil Engineering, Shandong Jianzhu University, Jinan 250101, China College of Civil Engineering, University of Jinan, Jinan 250022, China
国际会议
西安
英文
435-441
2011-09-22（万方平台首次上网日期，不代表论文的发表时间）