접합부 회전성능에 따른 중간 철골 모멘트 골조의 내진성능 평가 - Ⅱ 원인 평가 및 대안
Seismic Performance Evaluation According to Rotation Capacity of Connections for Intermediate Steel Moment Frames – II. Cause Evaluation and Alternative
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초록
This paper is the sequel of a companion paper (I. Performance Evaluation) evaluating the relation between the seismic performance ofsteel intermediate moment frames (IMFs) and the rotation capacity of connections. The evaluation revealed that the seismic performanceof IMFs having the required minimum rotation capacity suggested in the current standards did not meet the seismic performance criteriapresented in FEMA 695. Therefore, thepresent study evaluates the causes of the vulnerable seismic performance for steel IMFs andproposes alternatives to satisfy the seismic performance suggested in FEMA 695. To that goal, the results of nonlinear analysis, which arethe pushover analysis and the incremental dynamic analysis, are examined and evaluated. As a result, high-rise IMF systems are seen tohave the lower collapse margin ratio after connection fracture than row-rise IMF systems and, the actual response isfound to comparedtothedesign drift ratio acting on design load design. Finally, the minimum design load values are proposed to meet the seismicperformance suggested in FEMA 695 for IMF systems having vulnerable seismic performance.
Abstract
This paper is the sequel of a companion paper (I. Performance Evaluation) evaluating the relation between the seismic performance ofsteel intermediate moment frames (IMFs) and the rotation capacity of connections. The evaluation revealed that the seismic performanceof IMFs having the required minimum rotation capacity suggested in the current standards did not meet the seismic performance criteriapresented in FEMA 695. Therefore, thepresent study evaluates the causes of the vulnerable seismic performance for steel IMFs andproposes alternatives to satisfy the seismic performance suggested in FEMA 695. To that goal, the results of nonlinear analysis, which arethe pushover analysis and the incremental dynamic analysis, are examined and evaluated. As a result, high-rise IMF systems are seen tohave the lower collapse margin ratio after connection fracture than row-rise IMF systems and, the actual response isfound to comparedtothedesign drift ratio acting on design load design. Finally, the minimum design load values are proposed to meet the seismicperformance suggested in FEMA 695 for IMF systems having vulnerable seismic performance.
참고문헌 (16)
- Architectural Institute of Korea, "Korean Building Code and Commentary", Architectural Institute of Korea, ~ (2009)
- Minimum design loads for buildings and other structures, "ASCE", American Society of Civil Engineers, ~, pp.ASCE (2010), SEI 7-10
- Seismic provisions for structural steel buildings, "American Institute of Steel Construction", ~, pp.ANSI (2010), AISC 341-10
- Performance prediction and evaluation of steel special moment frames for seismic loads, "Lee K", SAC Joint Venture, ~, pp.SAC Background Document SAC (2000), BD-00[DOI]
- Yun SY, "Seismic performance evaluation for steel moment frames", Journal of Structural Engineering, 128(4), pp.534~545 (2002)
- Khandelwal K, "Collapse behavior of steel special moment resisting frame connections", Journal of Structural Engineering, 133(5), pp.646~655 (2007)
- Le-Trung K, "Evaluation of seismic behaviour of steel special moment frame buildings with vertical irregularities", Structural Design of Tall and Special Buildings, 21(3), pp.215~232 (2012)
- Quantification of Building Seismic Performance Factors, "FEMA", SAC Joint Venture and FEMA, ~, pp.FEMA P695 (2009)
- Minimum design loads for buildings and other structures, "ASCE", American Society of Civil Engineers, ~, pp.ASCE (2005), SEI 7-05
- Prequalified Connections for Special and Intermediate Steel Moment Frames for Seismic Applications, "American Institute of Steel Construction", ~, pp.ANSI (2010), AISC 358-10
- Han SW, "Approximate incremental dynamic analysis using the modal pushover analysis procedure", Earthquake Engineering & Structural Dynamics, 35, pp.1853~1873 (2006)
- Seismic performance, capacity and reliability of structures as seen through incremental dynamic analysis, "Vamvatsikos D", Stanford University, ~, pp.John A. Blume Earthquake Engineering Center Rep. No. 151 (2002)
- Seismic demands for performance evaluation of steel moment resisting frame structures, "Gupta A", Stanford University, ~, pp.John A. Blume Earthquake Engineering Research Center, Rep. No. 132 (1999)
- State-of-the-art report on performance prediction and evaluation of moment-resisting steel frame structures, "Foutch DA", Federal Emergency Management Agency, ~, pp.Report No. FEMA-355f (2000)
- Herrera RA, "Seismic performance evaluation of a large-scale composite MRF using pseudodynamic testing", Journal of Structural Engineering, 134(2), pp.279~288 (2008)
- Chopra AK, "A modal pushover analysis procedure for estimating seismic demands for buildings", Earthquake Engineering and Structural Dynamics, 31(3), pp.561~582 (2002)