2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 7: Yang Intl. Symp. / Multiscale Material Mechanics
| Editors: | Kongoli F, Aifantis E, Wang H, Zhu T |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2016 |
| Pages: | 190 pages |
| ISBN: | 978-1-987820-48-5 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Stability capacity of industrialized prefabricated high rise steel structure.
Zhang Ailin1;1BEIJING UNIVERSITY OF CIVIL ENGINEERING AND ARCHITECTURE, Beijing, China;
Type of Paper: Regular
Id Paper: 476
Topic: 1
Abstract:
To overcome the shortcomings in conventional high-rise steel structure, such as material waste, long construction period, massive construction waste and environmental pollution,we are promoting the development and application of industrialized prefabricated high-rise steel structure system in China. A new type of high-rise steel structure, which can be assembled by parts under integrated industrial process was developed.
In this paper, the history of research on buckling capacity for steel members with slender section in home and aboard is reviewed. To achieve the innovations on industrial assembly for high-rise steel structure system, basic research has been carried out systematically about the connections, columns, floorslabs and lateral force resisting systems. To study the seismic behavior of prefabricated H-beam to square tubular column connection with stiffener, six prefabricated H-beam to square tubular column connections were tested under the lateral cyclic loads. The influence factors included dimensions of stiffener, connect type of stiffener and inner diaphragm. The hysteresis loop, skeleton curve, bearing capacity, strength and stiffness degradation performance, ductility performance and energy dissipation capacity of each specimen were analyzed comparatively.Related performances are assessed through theoretical analysis, model experiment and case studies, such as stability, load-carrying capacity, deformations under earthquake action and failure modes. Combined with the deformation of diagonal braces, stress development, and load - displacement curve, the stability bearing capacity of the structure were determined. The flexible layout can significantly change the stress performance of joints, increase the lateral stiffness of columns, increase the bearing capacity of whole structure, and reduce the calculative length coefficient of diagonal braced column.
Some suggestions about research topics are proposed as follows: the interaction between local buckling and global buckling, distortion buckling of cold formed steel members, how to control width-thick-ratio of components and plastic hinges of members efficiently in seismic design, general principles in revising the Code for Design of Steel Structures, etc