Response spectrum of a reinforced concrete frame structure under various column removal scenarios

Abstract Seismic vulnerability for a structure represents the susceptibility to be affected by an event with a given intensity. The vulnerability of a structure can be influenced by the design methods or by different problems that may appear during the execution process. This paper shows a case study for the vulnerability increase of a reinforced concrete frame structure in 2 different situations: a) modification produced due to code changes, meaning P100-2006 respectively P100-2013; b) modifications produced the structure taking into account the errors which have occurred during the execution process; For both cases, capacity curves were plotted considering the nonlinear analysis, also called pushover. The numerical simulation was performed in SAP2000 software. These curves were compared with the response spectrum corresponding to the site conditions in order to obtain the performance point. For accurate results, fragility curves were plotted for both considered situations, according to previous research of the authors. The paper emphasizes the importance of each stage during the execution of a structure. More over the differences in the vulnerability index show the importance on the overall behavior of the structure. Solution to increase strength and safety for the structure are also given at the end of the paper

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Reinforced Concrete Frame Structure Based on ANSYS Optimization Analysis and Material Properties

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.788.571 ◽

2013 ◽

Vol 788 ◽

pp. 571-574

Author(s):

Shuo Wang ◽

Fu Ma

Keyword(s):

Reinforced Concrete ◽

Response Spectrum ◽

Structure Optimization ◽

Minimum Cost ◽

Parametric Modeling ◽

Frame Structure ◽

Reinforced Concrete Frame ◽

Optimization Analysis ◽

Concrete Frame ◽

Reinforced Concrete Frame Structure

This article mainly focus on the research in two-way horizontal earthquake under the action of 5-layer reinforced concrete frame structure optimization analysis. This research utilizes ANSYS software to realize parametric modeling. By using beam and column section sizes as design variables and tructural strength, stiffness, the maximal displacement between the layers as well as reinforcement component limit as constraint conditions, with overall minimum cost as objective function, it has carried on the static analysis, seismic response spectrum to structure analysis and optimization analysis on structures.Also, cross section change has been compared before and after the structure optimization to find out whether structure of various important parameters meet the specification requirements and and reflect the certain economy.

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Reinforced Concrete Frame Structure Dynamic Analysis Based on SAP2000

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.744-746.211 ◽

2015 ◽

Vol 744-746 ◽

pp. 211-216

Author(s):

Ju Fang Zhong ◽

Zhi Peng Fan ◽

Luo Long Zhan ◽

Jun Wei Liang

Keyword(s):

Reinforced Concrete ◽

Damage Detection ◽

Response Spectrum ◽

Frame Structure ◽

Response Analysis ◽

Seismic Action ◽

Acceleration Response ◽

Reinforced Concrete Frame ◽

Concrete Frame ◽

Reinforced Concrete Frame Structure

Structure under long-term load, environmental erosion, material aging, especially under the seismic action can cause damage accumulation and bearing capacity decrease. In order to make sure its safety and reliable, avoid extreme cases of catastrophic accident, it is necessary to carry out the engineering structural health diagnosis. Using SAP2000 software, seismic response analysis for a two layer reinforced concrete frame structure is carried out. The laws of the acceleration response time history and spectrum under different seismic action were found out by discussing structure in no damage and different damages. The results showed that no matter where the damage located, the top node response increment is bigger than the middle node, the peak of acceleration response spectrum changes little with the beam damage degrees changing. Selecting the acceleration response peak of the top node as a structural damage index is feasible in the damage detection and identification of engineering structures, but analyzing the response spectrum for damage detection is unpractical.

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Multi-Storey Reinforced Concrete Frame Structure Earthquake Response Analysis

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.166-169.877 ◽

2012 ◽

Vol 166-169 ◽

pp. 877-880

Author(s):

Cai Hua Wang ◽

Jian Feng Wu

Keyword(s):

Reinforced Concrete ◽

Response Spectrum ◽

Frame Structure ◽

Response Analysis ◽

Ansys Software ◽

Reinforced Concrete Frame ◽

One Dimensional ◽

Concrete Frame ◽

Reinforced Concrete Frame Structure ◽

Earthquake Response Analysis

Using ANSYS software, the paper analyze the seismic response to Kobe one-dimensional seismic wave of multi-storey reinforced concrete frame structure, and make comparison with the calculation of response spectrum method.

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