Seismic Performance Evaluation of Multistory Reinforced Concrete Moment Resisting Frame Structure with Shear Walls

Seo, Junwon; Hu, Jong Wan; Davaajamts, Burte

doi:10.3390/su71014287

Cited by 31 publications

(15 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A fragility curve can be usually produced with the use of a mathematical function related to seismic capacity and demand of the structure, accounting for their uncertainties [31]. Mathematical function of fragility curves can be represented as follows [31]:…”

Section: Fragility Curvementioning

confidence: 99%

“…is the logarithmic standard deviation for the capacity; and 0[ ] is the standard normal distribution function. The parameter was assumed to be 0.3 following the recommendations from HAZUS [31], while was computed as the logarithmic standard deviation of seismic responses gained for each floor of the studied structure from the nonlinearly dynamic analyses. As aforementioned, the maximum interstory drift ratios have been widely and efficiently used to generate fragility curves for multistory framing structures at predescribed FEMA different performance levels.…”

Section: Maximum Interstory Drift Ratio Maxmentioning

confidence: 99%

See 1 more Smart Citation

Seismic Fragility Estimates of LRB Base Isolated Frames Using Performance-Based Design

Mansouri

Amiri

et al. 2017

Shock and Vibration

View full text Add to dashboard Cite

With improving technology, the idea of using energy dissipater equipment has been strengthened in order to control the structures response in dynamic loads such as wind and earthquake. In this research, we dealt with seismic performance of base isolated structures with lead-rubber bearing (LRB) using incremental dynamic analysis (IDA). For this purpose, 3- and 9-story buildings have been utilized in the SAC project undergoing 22 earthquake records which were far-fault. Plotting the fragility curve for various states of design time period and isolator damping of LRB, it is observed that, by increasing damping, the isolator has not been activated in small spectrum acceleration, which shows that the annual exceedance probability is increased in immediate occupancy (IO) performance level and decreased in life safety (LS) performance level. The results show the reduction of determined failure probability in fragility curves for two levels of performance of uninterrupted use and lateral safety. Likewise obtained results show that, with increasing design time period of isolator, the amount of failure probability is decreased rather than the isolator with smaller design time period, for both LS and IO states. And the isolator illustrates better performance.

show abstract

Section: Fragility Curvementioning

confidence: 99%

Section: Maximum Interstory Drift Ratio Maxmentioning

confidence: 99%

Seismic Fragility Estimates of LRB Base Isolated Frames Using Performance-Based Design

Mansouri

Amiri

et al. 2017

Shock and Vibration

View full text Add to dashboard Cite

show abstract

“…The study showed that near-source outcomes cause most of the seismic energy from the rupture to arrive in a single coherent longperiod pulse of motion and permanent ground displacements. Additionally, in some studies, the effects of NF and FF records on the RC structures were investigated [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Seismic response of fixed-base and LRB base-isolated RC frame systems under NF and FF excitations

Komur¹,

Deneme²,

Oruç³

2019

JSEAM

View full text Add to dashboard Cite

Seismic isolation systems can be used in new structures to reduce the negative effects of the earthquake on the building. The lead rubber bearing (LRB) is one of the most commonly used seismic isolators. This study focused on the behavior of Reinforced Concrete (RC) frame systems with fixed-base and Lead Rubber Bearing systems under Near-Fault (NF) and Far-Fault (FF) records. For this purpose, two-plane frame systems with 4 and 8 story were designed. Nonlinear behavior of both superstructure and isolation system was taken into consideration in modeling. The nonlinear time history analysis method was used in the seismic analysis of reinforced concrete frame systems. Finally, story acceleration, interstory drift ratio, base shear force and distribution of plastic hinges and their damage conditions were evaluated. The results of the analysis showed that the effects of the NF earthquake record on the frame system had generally greater according to the effects of the FF earthquake records.

show abstract

“…A comparison with empirical fragility function on field data was also observed. Junwon Seo, Jong Wan Hu and Burte Davaajamts (2015) [23] evaluates the seismic performance of a twelve storey reinforced concrete moment resisting frame structure with shear walls using 3Dfinite element models. Two standard approaches response spectrum analysis and nonlinear time history analysis were used for seismic performance evaluation.…”

Section: Literature Reviewmentioning

confidence: 99%

A Review - Fragility Analysis of Multi-Storey Regular R.C Building

Apte¹

2018

IJRASET

View full text Add to dashboard Cite

The uncertain nature of future ground motions is leading to the development of probabilistic structural damage estimation procedures. The fragility curve method is a useful method for estimating the structural damage for certain type of structure under the effect of potential earthquakes. Earthquake response analysis is basically done either by non-linear static procedure or non-linear dynamic procedure. Non-linear static procedure may or may not be based on record to record variability, however non-linear dynamic procedure are based on record to record variability. Based on structural response results the two parameters mean and standard deviation are obtained for development of fragility curve. Keywords: Non-linear static procedure, non-linear dynamic procedure, record to record variability, probabilistic structural damage, fragility curve I. INTRODUCTIONOver the past 40 years, major changes regarding seismic design procedures have occurred. Historically, seismic design procedures were based primarily on forces and the strength necessary to resist them largely because that is what dead and live loads are traditionally designed for. It was believed that the strength of a structure was synonymous with the performance of a structure. Research conducted during the 1970's and 1980's focused on determining the ductility of structural systems and incorporating this into the design requirements, but the overall design methods were still based on resisting forces. In the 1990's, a new design method based on desired levels of displacements, instead of forces, was introduced and has been the focus of research since then. The new design method, referred to as performance-based design, was developed to overcome shortcomings in the previous force-based design methodology. Through history, we had recognized that earthquakes caused in big disasters to structures which hadn't any elements to resist the horizontal force produced from earthquakes. There is a concept in the design of structures that was seismic design concept based primarily on forces and the strength necessary to resist them largely because that is what dead and live loads are traditionally designed for. So, there was a need for developing the field of design for structures which will be subjected to lateral load specially earth quakes loads. For analysis of structures subjected to seismic loading, methods such as static and dynamic methods came into existence which could be performed on varied software such sap2000,ansys etc. Further, to estimate the probabilistic damage in structure, damage states are defined and fragility curves are designed on basis of certain ground motion parameters. Fragility curve is one of the novel methods to analyze the probability of yielding or failure of structures thus simplifying seismic analysis.

show abstract

Seismic Performance Evaluation of Multistory Reinforced Concrete Moment Resisting Frame Structure with Shear Walls

Cited by 31 publications

References 25 publications

Seismic Fragility Estimates of LRB Base Isolated Frames Using Performance-Based Design

Seismic Fragility Estimates of LRB Base Isolated Frames Using Performance-Based Design

Seismic response of fixed-base and LRB base-isolated RC frame systems under NF and FF excitations

A Review - Fragility Analysis of Multi-Storey Regular R.C Building

Contact Info

Product

Resources

About