Title :
Research on construction technology of cantilever expansion of some stage hall grid structure
Author :
Zhang, Jigang ; Zhang, Tongbo
Author_Institution :
Sch. of Civil Eng., Qingdao Technol. Univ., Qingdao, China
Abstract :
Based on some stage hall grid structure adopts high altitude scattered expansion construction technology, the original construction technical scheme adopts a T-shaped scaffold to construct, but this scheme will influence the underground stage hall´s construction, and its cost is larger, therefore recommend a bar supporting frame to be built as starting unit, then to form stable unit, then to dismantl scaffold for cantilever expansion construction. Using this new construction technology, we need to study the stability conditions of starting unit and stress and strain distribution of construction assembly process, to satisfy grid structure construction standard. Therefore, this article analyzes the grid construction according to construction steps in detail, altogether 45 construction steps, analyzes starting unit´s the change rule of the stresses and deformations, analyzes the stresses and deformations of the cantilever expansion part, analyzes construction arch of the grid structure. The analysis results show that the new construction technology is a feasible construction scheme.
Keywords :
assembling; bars; cantilevers; construction; mechanical stability; stress-strain relations; T-shaped scaffold; bar supporting frame; cantilever expansion construction; cantilever expansion part; construction arch; construction assembly process; construction technical scheme; grid structure construction standard; high altitude scattered expansion construction technology; stability conditions; stage hall grid structure; strain distribution; stress distribution; underground stage hall construction; Analytical models; Assembly; Monitoring; Steel; Strain; Stress; Transportation; cantilever expansion; grid structure; starting unit; support scaffolds;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on
Conference_Location :
Hohhot
Print_ISBN :
978-1-4244-9436-1
DOI :
10.1109/MACE.2011.5988410