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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.34 No.5
- 발행연도
- 2020.1
- 수록면
- 625 - 641 (17page)
이용수
초록· 키워드
오류제보하기
The realistic modeling of the beam-column semi-rigid connection in steel frames attracted the attention of many researchers in the past for the seismic analysis of semi-rigid frames. Comparatively less studies have been made to investigate the behavior of steel frames with semi-rigid connections under different types of earthquake. Herein, the seismic behavior of semi-rigid steel frames is investigated under both far and near-field earthquakes. The semi-rigid connection is modeled by the multilinear plastic link element consisting of rotational springs. The kinematic hysteresis model is used to define the dynamic behavior of the rotational spring, describing the nonlinearity of the semi-rigid connection as defined in SAP2000. The nonlinear time history analysis (NTHA) is performed to obtain response time histories of the frame under scaled earthquakes at three PGA levels denoting the low, medium and high-level earthquakes. The other important parameters varied are the stiffness and strength parameters of the connections, defining the degree of semi-rigidity. For studying the behavior of the semi-rigid frame, a large number of seismic demand parameters are considered. The benchmark for comparison is taken as those of the corresponding rigid frame. Two different frames, namely, a five-story frame and a ten-story frame are considered as the numerical examples. It is shown that semi-rigid frames prove to be effective and beneficial in resisting the seismic forces for near-field earthquakes (PGA ≈ 0.2g), especially in reducing the base shear to a considerable extent for the moderate level of earthquake. Further, the semi-rigid frame with a relatively weaker beam and less connection stiffness may withstand a moderately strong earthquake without having much damage in the beams.
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참고문헌 (60)
참고문헌 신청
Gholamreza Abdollahzadeh / 2016 / Comparing Hysteretic Energy and inter-story drift in steel frames with V-shaped brace under near and far fault earthquakes / Alexandria Engineering Journal 57(1):301~308
Sinan Akkar / 2005 / Drift Estimates in Frame Buildings Subjected to Near-Fault Ground Motions / Journal of Structural Engineering 131(7):1014~1024
Nihan Doǧramacı Aksoylar / 2011 / The design and seismic performance of low-rise long-span frames with semi-rigid connections / Journal of Constructional Steel Research 67(1):114~126
F.G.A. Al-Bermani / 1994 / Cyclic and seismic response of flexibly jointed frames / Engineering Structures 16(4):249~255
Babak Alavi / 2004 / Behavior of moment-resisting frame structures subjected to near-fault ground motions / Earthquake Engineering & Structural Dynamics 33(6):687~706
Sinan Akkar / 2005 / Drift Estimates in Frame Buildings Subjected to Near-Fault Ground Motions / Journal of Structural Engineering 131(7):1014~1024
Nihan Doǧramacı Aksoylar / 2011 / The design and seismic performance of low-rise long-span frames with semi-rigid connections / Journal of Constructional Steel Research 67(1):114~126
F.G.A. Al-Bermani / 1994 / Cyclic and seismic response of flexibly jointed frames / Engineering Structures 16(4):249~255
Babak Alavi / 2004 / Behavior of moment-resisting frame structures subjected to near-fault ground motions / Earthquake Engineering & Structural Dynamics 33(6):687~706
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