Study on Seismic Performance of a New Multi-Layer Frame-Bent Industrial Building by Pushover Analysis

2012 ◽  
Vol 193-194 ◽  
pp. 1038-1047 ◽  
Author(s):  
Jian Guo Ding ◽  
Zhi Qiao
Keyword(s):  
Economic Development ◽  
Seismic Performance ◽  
Pushover Analysis ◽  
Longitudinal Direction ◽  
Middle Layer ◽  
Industrial Building ◽  
Plastic Hinges ◽  
Elastic Plastic ◽  
Plastic Analysis ◽  
Story Drift

With the sustainable economic development, a new multi-layer frame-bent industrial building is developed in the southeastern of China, based on a traditional bent industrial building. In this kind of structure, a framework is used in the longitudinal direction, the precast prestressed double-T plates is used in the middle layer, and the precast prestressed saddle plates is used on the roof. At present,the research achievements for this new multi-layer frame-bent industrial building under the action of earthquake .are seldom at home and abroad. In order to analyze the damaged mechanism and destroyed process on the structure of a new multi-layer frame-bent under the action of earthquake, elastic-plastic analysis of the structure must be completed. In this paper, the seismic performance of this new multi-layer frame-bent industrial building is studied by pushover analysis. The result shows that in the zone of a seismic fortification intensity as 70, both the elastic story drift under the action of frequently occurred earthquake and the elastic-plastic story drift under the action of rarely occurred earthquake for this new multi-layer frame-bent industrial building meet the requirements for the regulations of PROC;the plastic hinges appear first in the second floor, then develop to the first floor until the structure is destroyed.

Elastic-Plastic Analysis of Partial Single Long-Span Complex Frame Structure under Rare Earthquake in High Seismic Intensity Zone

2014 ◽  
Vol 501-504 ◽  
pp. 1503-1512
Author(s):  
Jian Wen Wang ◽  
Fei Liang ◽  
Wen Bo Sun
Keyword(s):  
Seismic Performance ◽  
High Intensity ◽  
Structure Design ◽  
Frame Structure ◽  
Elastic Plastic ◽  
Long Span ◽  
High Intensity Zone ◽  
Plastic Analysis ◽  
Rare Earthquake ◽  
Steel Roof

The item 6.1.5 in Code for seismic design of buildings(GB50011-2010)[ is for single span frame structure design requirements of regulations. But there may be a partial single long-span frame structure in the actual project. Therefore, it is necessary to study the seismic performance of the structure under rare earthquake, especially in high intensity area. This paper takes a hybrid structure which is in high intensity zone with partial single long-span concrete structures (31m) and the single long-span steel roof as an example, and the seismic performance of partial single long-span structures under rare earthquake is discussed. In the elastic-plastic analysis, reinforcement results of members are automatically merged by VBA program. Material parameters of the Elastic-plastic analysis model are compared to Pseudo-static collapse experiment results of reinforced concrete frame columns and the overall framework in Tsinghua University. Results show that: The partial single long-span frame structure reasonably designed based on the Chinese code can meet the requirement of No Collapsing With Strong Earthquake; The bearing type of the steel roof has certain influence on the inter-story displacement angle of supporting frame structures under rare earthquake.

Elasto-Plastic Analysis of Uniform Grillages Under Lateral Load

1969 ◽  
Vol 13 (02) ◽  
pp. 103-110
Author(s):  
Thein Wah
Keyword(s):  
Finite Difference ◽  
Lateral Load ◽  
Torsional Stiffness ◽  
Collapse Mechanism ◽  
Plastic Hinges ◽  
Elastic Plastic ◽  
Initial Loading ◽  
Plastic Analysis ◽  
The Matrix

A method is presented for analyzing elastic-plastic grillages under arbitrary loads by finite difference calculus. The torsional stiffness of the beams is neglected. The introduction of two discontinuity functions representing the rotation at the plastic hinges permits a complete description of the structure from initial loading until collapse. The development of a collapse mechanism is signified by the vanishing of the determinant of the matrix of the equations determining the amount of rotation at the plastic hinges.

Analysis of Transmission Tower Structure with Pushover Method

2013 ◽  
Vol 351-352 ◽  
pp. 203-207
Author(s):  
Kang Qin ◽  
Zhong Gen Xu ◽  
Chang Gen Deng
Keyword(s):  
Seismic Performance ◽  
Failure Modes ◽  
Pushover Analysis ◽  
Seismic Loads ◽  
Transmission Tower ◽  
Plastic Hinges ◽  
Weak Part ◽  
Tower Structure

Pushover method is mainly used to find the weak part of the structure and possible failure modes. This paper presents a pushover analysis. Taking a transmission tower as an example, calculations are carried out by SAP2000 Program with assumption of rational criterion. Seismic loads of frequently met and rarely met seismic concentration degrees are considered. By comparing the structural target seismic performance and the sequence of plastic hinges induced, seismic performances of the transmission tower are estimated.

The Effect of Damping on Seismic Performance of Steel Frame

2014 ◽  
Vol 580-583 ◽  
pp. 1477-1480
Author(s):  
Xin Wu Wang ◽  
Chang Jiao Hu
Keyword(s):  
Seismic Performance ◽  
Frame Analysis ◽  
Dynamic Test ◽  
Steel Frame ◽  
Structural Damping ◽  
Panel Zone ◽  
Story Drift

To study the effect of damping on seismic performance of steel frame, using the pseudo dynamic test by inputting damping and no damping to analyze the seismic performance of semi-rigid steel frame. Analysis was focused on the effect of damping on the panel zone strain, story drift and interlayer force.The conclusion was that under the more severe earthquake, the structural damping had effects on the seismic performance of semi-rigid steel frame.

Analysis of Seismic Performance of RC Frames with Centrally Reinforced Columns

2013 ◽  
Vol 671-674 ◽  
pp. 1319-1323
Author(s):  
Zi Xue Lei ◽  
Yu Hang Han ◽  
San Sheng Dong ◽  
Jun Qing Guo
Keyword(s):  
Seismic Performance ◽  
Cross Sections ◽  
Carrying Capacity ◽  
Pushover Analysis ◽  
Seismic Load ◽  
Load Carrying Capacity ◽  
Rc Columns ◽  
Rc Column ◽  
Rc Frames ◽  
Load Carrying

A centrally reinforced column is a new type of RC columns, formed by providing a reinforcement skeleton at the central part of the cross section of an ordinary RC column. Tests have shown that as compared with an ordinary RC column, this type of columns has a higher load carrying capacity and ductility. From the pushover analysis of a frame composed of ordinary RC columns and one consisting of centrally reinforced columns, their seismic performance under seismic load of 9-degree intensity was studied according to Chinese code, including target displacements, story-level displacements, interstory drifts, appearance and development of plastic hinges. The results indicate that although the dimensions of cross sections of columns in the frame with centrally reinforced columns are smaller than those of the ordinary frame, the former still has a higher overall load carrying capacity and seismic performance than the latter.

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