Seismic Performance Reliability Analysis of Frame Structure with Special-Shaped Columns

2012 ◽  
Vol 594-597 ◽  
pp. 1800-1804
Author(s):  
Yang Liu ◽  
Hong Bing Liu
Keyword(s):  
Seismic Performance ◽  
Response Spectrum ◽  
Frame Structure ◽  
Plastic State ◽  
Analysis Method ◽  
Response Spectrum Analysis ◽  
Damage Level ◽  
Column Structure ◽  
Mean Square Response ◽  
The Mean

The displacement response of special-shaped column frame structure on the elasto-plastic state was obtained with the Pushover method. Using Park-Ang model to calculate the damage level of each floor, and then using the improved mean response spectrum analysis method to compute the mean square response of the maximum elasto-plastic structure interlayer displacement and the probability of different damage levels. The result shows that the seismic performance of special-shaped column structure will be better reflected when the structure is analyzed with the methods mentioned above and these methods have some theoretical significance.

Response Spectrum Analysis of a Large-Span Hangar Subjected to Multi-Dimensional Seismic Inputs

2013 ◽  
Vol 639-640 ◽  
pp. 906-910
Author(s):  
Yang Xu ◽  
Jun Zhao ◽  
Xiao Yan Xu ◽  
Dan Zhu
Keyword(s):  
Spectrum Analysis ◽  
Response Spectrum ◽  
Three Dimensional ◽  
Analysis Method ◽  
Response Spectrum Analysis ◽  
Roof Structure ◽  
Internal Forces ◽  
Primary Direction ◽  
Lateral Displacements ◽  
2D And 3D

The multi-dimensional seismic response of a single-span hangar was studied by response spectrum analysis method. The lateral displacements of the structure, forces of its supporting columns and its roof structure were calculated and compared with each other for cases of one-, two- and three-dimensional (1D, 2D and 3D) seismic inputs. The results show that, compared with the case of 1D earthquake input, the effects of horizontally 2D earthquake inputs on the internal forces and displacements of its supporting columns in the primary direction of input are obvious when it is along the symmetrical axis of the hangar and their effects in the secondary direction of input are even more important which results in great increases of the internal forces and displacements in that direction. The vertical seismic input has almost no effect on the internal forces and displacements of columns. The internal forces in different parts of the roof structure are controlled by horizontal or vertical inputs, respectively, and, compared with those from horizontally or vertically 1D inputs, the responses from 3D inputs are increased and the effects should be considered in seismic design.

Dynamic Nonlinear Analysis of an Out-of-Code Highrise Building

2012 ◽  
Vol 594-597 ◽  
pp. 860-868
Author(s):  
Kai Hu ◽  
Ge Qu
Keyword(s):  
Nonlinear Analysis ◽  
Seismic Performance ◽  
Spectrum Analysis ◽  
Response Spectrum ◽  
Pushover Analysis ◽  
Time History ◽  
Response Spectrum Analysis ◽  
High Rise ◽  
History Analysis ◽  
Dynamic Nonlinear Analysis

The most common analysis methods of complex high-rise buildings are the response spectrum analysis, elastic time history analysis, pushover analysis and etc. Meanwhile, for the analysis of those high-rises whose height is higher than 200 meters, period is longer than 4 seconds, the dynamic nonlinear analysis would be more accurate. In this paper, the dynamic nonlinear analysis was executed in use of the Perform-3D program. The results show that the maximum top displacement can meet the national codes; most tie beams and the frame beams of the upper structure yielded in the IO~IS stage and parts reached the CP stage; both the laminated columns and the frame columns had a good performance on the shear behavior; and it is also proposed to strengthen the reinforcement at the reducted storeys. By all these above, it can be judged that the structure reached the codes’ seismic performance objectives.

Comparison and Study on Seismic Performance of the Special-Shaped Column and Rectangular Column Frame Structure

2013 ◽  
Vol 405-408 ◽  
pp. 1110-1114
Author(s):  
Qin Peng ◽  
Yi Teng Huang ◽  
Yong Kun Luo
Keyword(s):  
Seismic Performance ◽  
Time History ◽  
Dynamic Structure ◽  
Frame Structure ◽  
Column Structure ◽  
History Analysis ◽  
Seismic Property ◽  
Earthquake Action ◽  
The Moment ◽  
Comparison And Study

By introducing the basic concepts and designing principles of special-shaped column structure, this paper attempts to establish three finite element models (the special-shaped column structure, rectangular column structure with the equal area and rectangular column structure with the moment of inertia) by using the SAP2000. And the basic dynamic structure properties of three structures are analyzed. It’s base of the dynamic analysis for the structure. Then, the paper analyzes the elastic seismic performance under the horizontal earthquake action by using the vibration spectrum method and the elastic time-history analysis method. The results show that three models are all in the elastic steps. We compared the anti-seismic property of three models under frequent earthquake.

Seismic Performance Evaluation of a Super-Tall Building Structure

2012 ◽  
Vol 446-449 ◽  
pp. 2357-2360
Author(s):  
Ying Zhou ◽  
Lei Hong
Keyword(s):  
Performance Evaluation ◽  
Reinforced Concrete ◽  
Seismic Performance ◽  
Response Spectrum ◽  
Hybrid Structure ◽  
Elastic Response ◽  
Response Spectrum Analysis ◽  
Seismic Performance Evaluation ◽  
Steel Reinforced Concrete ◽  
Tall Structure

This paper carried out the seismic performance evaluation of a super-tall hybrid structure. The hybrid structure consists of steel reinforced concrete (SRC) frame and reinforced concrete (RC) core wall. Based on the characteristics of the structure, the structural system, seismic performance objectives and seismic measures are presented. Moreover, the elastic response spectrum analysis, elastic and elasto-plastic dynamic analysis are performed to evaluate the seismic behavior of the structure at different seismic hazard levels. The conclusion can be drawn that through the seismic measures taken in the paper, the super-tall structure could generally achieve the seismic performance objectives.

scholarly journals Analysis of Seismic Behavior of Multistoried R.C.C Building Resting on Sloping Strata under Seismic Load

2021 ◽  
Vol 9 (VI) ◽  
pp. 5293-5302
Author(s):  
Deeshma D
Keyword(s):  
Response Spectrum ◽  
Population Increase ◽  
Seismic Load ◽  
Seismic Action ◽  
Seismic Zone ◽  
Analysis Method ◽  
Severe Damage ◽  
Response Spectrum Analysis ◽  
Sloping Ground ◽  
The North

Construction of RC buildings in preferred locations in the north & eastern hilly regions have increased during the last few decades due to urbanization, population increase, and high influx of tourists. The buildings situated in hilly areas are much more prone to seismic environment in comparison to the buildings that are located in flat regions. Structures on slopes differ from other buildings since they are irregular both vertically and horizontally and therefore susceptible to severe damage when subjected to seismic action. The columns of ground storey have varying height due to sloping ground. This paper presents the comparative analysis of various configurations of 15 storied building with to be found on varying slope with different plan and different structural arrangements situated on seismic zone IV. This study compares various reinforced concrete models framed and analysed their response against dynamic loading to identify and struggle the worst possible scenario. The study is carried out for a combination of three different slopes and different building configuration by response spectrum analysis method and various parameters are compared against various constraints.

Vertical seismic response analysis of long-span composite open-web grid floor

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Qizhu Yang ◽  
Kejian Ma ◽  
Huagang Zhang ◽  
Yanhui Wei ◽  
Ze Xiang
Keyword(s):  
Seismic Performance ◽  
Response Spectrum ◽  
Time History ◽  
Grid Floor ◽  
Time History Analysis ◽  
Analysis Method ◽  
Response Spectrum Method ◽  
Content Type ◽  
Spectrum Method ◽  
History Analysis

PurposeThe purpose of this paper is to study the dynamic characteristics and seismic performance of the composite open-web grid floor structure.Design/methodology/approachStudied by using mode-superposition response spectrum method and time history analysis method.FindingsThe results show that the vertical mode-superposition response spectrum method is close to the time history analysis method. The floor has strong seismic performance, and the deflection and internal force are not large under vertical seism. The vertical seismic action suggested that 10% of the representative value of gravity load should be used to ensure the safety of the structure.Originality/valueIn the design, the mid-span section should be properly strengthened or the variable section design should be adopted.

Sign in / Sign up

Export Citation Format

Share Document