Aseismic Analysis on Separation Joint of Atrium Roof and Connection Modes with Tower

2013 ◽  
Vol 459 ◽  
pp. 601-607
Author(s):  
Jun Zhou ◽  
Xin Han ◽  
Min Jin
Keyword(s):  
Mechanical Performance ◽  
Reference Value ◽  
Internal Force ◽  
Curtain Wall ◽  
Roof System ◽  
Shared Space ◽  
Steel Truss ◽  
Glass Curtain Wall ◽  
Force Displacement

The atrium roof system of shared space concerning large public buildingsis studied in this paper. The steel truss roof is wrapped with glass curtain wall which is relatively flexible and it is connected to the tower which is relatively rigid. Different separate means of the atrium roof as well as different connection modes between atrium roof and tower have great effect on mechanical performance of the whole structure. By comprehensive comparing various schemes of atrium roof and connection modes with tower, the internal force, displacement, modal as well as other parameters of roof and tower have been studied. The optimal connection scheme is also determined, which has good reference value for practical projects.

Mechanical Performance Calculation of Single-Layer Cable Mesh Point-Supported Glass Curtain Wall under Fire Conditions

2014 ◽  
Vol 580-583 ◽  
pp. 2702-2707 ◽  
Author(s):  
Ling Feng Gong ◽  
Yin Bai ◽  
Si Qi Li
Keyword(s):  
Mechanical Performance ◽  
Process Analysis ◽  
Single Layer ◽  
Mesh Point ◽  
Wall Structure ◽  
Prevention Measures ◽  
Main Bearing ◽  
Curtain Wall ◽  
Glass Curtain Wall ◽  
Fire Conditions

High-strength prestressed cables were main bearing parts in single-layer cable mesh point-supported glass curtain wall structures, and it was always unable to take effective fire prevention measures on steel cables due to small sections. That the elastic modulus and yield strength of prestressed cables decreased sharply under fire conditions would threaten safety performance of the whole structure seriously. When glass breakage is considered and not considered, nonlinear finite element complete-process analysis for the single-layer cable mesh point-supported glass curtain wall structure was conducted. Influences of various factors on structure mechanical performance were studied under fire conditions. Through the calculation analysis of different joint constraint models, the ultimate temperature table suitable for different sizes and cable spacing of glass curtain walls was obtained under uniform heating conditions, and proposals for fire-resisting design were given.

Redistribution of Internal Force under Structural Defect and Non-Linear Spatial Stability under Live Load and Wind of Tied-Arch Bridge

2013 ◽  
Vol 477-478 ◽  
pp. 640-645
Author(s):  
Qian Hui Pu ◽  
Hu Zhao
Keyword(s):  
Safety Factor ◽  
Mechanical Performance ◽  
Influence Factors ◽  
Internal Force ◽  
Structural Defects ◽  
Live Load ◽  
Positive Contribution ◽  
Arch Bridge ◽  
Initial Defect ◽  
Tied Arch Bridge

To study the mechanical performance and stability of tied-arch bridge under structural defects and damages, limited element modal of Panzhihua Luoguo Jinshajiang Bridge was established and analyzed. Firstly, some typical damage models and their influence factors were presented. Then, based on the model established, change of suspender force caused by arch rib lineation defect, hanger lineation defect and boom failure was calculated respectively. The stability safety factor under the load group composed of dead load, live load and wind was calculated as well as the second-class nonlinear stability safety factor under structural initial defect. Calculation results shows that, suspender forces were more sensitive to archs vertical defect than to transverse defect. While, short hangers were more sensitive to lineation defect than long ones, and secondary inner force in short booms were bigger than in long ones. The result also tells that lateral wind is bad to lateral stability. Lift wind, somehow, makes positive contribution to structures in-plane stability. Structural initial defect can draw down the second-class stability safety factor under geometric nonlinear condition.

Fracture behavior of a four-point fixed glass curtain wall under fire conditions

2014 ◽  
Vol 67 ◽  
pp. 24-34 ◽  
Author(s):  
Yu Wang ◽  
Qingsong Wang ◽  
Guangzheng Shao ◽  
Haodong Chen ◽  
Yanfei Su ◽  
...  
Keyword(s):  
Fracture Behavior ◽  
Curtain Wall ◽  
Glass Curtain Wall ◽  
Fire Conditions

Construction Technology Research on Super Glass Curtain Wall of the Henan Art Center

2012 ◽  
Vol 170-173 ◽  
pp. 3212-3215
Author(s):  
Ya Nan Fu ◽  
Hai Tao Mao
Keyword(s):  
Wall Structure ◽  
Tension Stress ◽  
Construction Technology ◽  
Curtain Wall ◽  
Glass Wall ◽  
Factors Affecting ◽  
Structural Wall ◽  
Technical Parameters ◽  
Working Principle ◽  
Glass Curtain Wall

Henan Art Center has a new curtain wall structure - the structure cable net glass wall. Because of the cable net structure for glass curtain wall construction and design difficulties, the design of curtain wall performance to deepen the main points of cable net structural wall of the working principle, design connections, cable net structural wall of the cable construction steps, cable pre-stressing and tension when the technical parameters and under the glass curtain wall materials and installation was introduced. And the main factors affecting the performance curtain wall and the cable tension when the ambient temperature and the tension stress was studied. The results showed that the construction program was optimize and construction quality and safety was ensure.

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