Wall-diaphragm interactions in seismic response of single-story building systems

Abstract: Floating column building is a new fascination for engineers. As floating column buildings provides more space and good aesthetics to the building. But have high structural challenges, when a floating column is provided in a multi-story building in a high seismic zone. This paper reviews several studies conducted on the floating column building and its behavior under seismic loads. This paper studies that floating column building are vulnerable to the high seismic zones. The risk of damage also depends on the shape and size of the buildings.The ductile detailing of the joints is the promising solution for immediate failure of such buildings. Keywords: Floating Column, Response spectrum analysis. Vulnerable, damage, multi-story

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Simulation and analysis of a vertically irregular building subjected to near-fault ground motions

Earthquake Spectra ◽

10.1177/8755293020911134 ◽

2020 ◽

Vol 36 (3) ◽

pp. 1485-1516

Author(s):

Jui-Liang Lin ◽

Wen-Hui Chen ◽

Fu-Pei Hsiao ◽

Yuan-Tao Weng ◽

Wen-Cheng Shen ◽

...

Keyword(s):

Numerical Model ◽

Seismic Response ◽

Ground Motion ◽

Ground Motions ◽

Far Field ◽

Near Fault ◽

Study Results ◽

Rc Building ◽

Near Fault Ground Motion ◽

Story Building

A shaking table test of a three-story reinforced concrete (RC) building was conducted. The tested building is vertically irregular because of the first story’s elevated height and the third story’s added RC walls. In addition to far-field ground motions, near-fault ground motions were exerted on this building. A numerical model of the three-story building was constructed. Comparing with the test results indicates that the numerical model is satisfactory for simulating the seismic response of the three-story building. This validated numerical model was then further applied to look into two issues: the effective section rigidities of RC members and the effects of near-fault ground motions. The study results show the magnitude of the possible discrepancy between the actual seismic response and the estimated seismic response, when the effective section rigidities of the RC members are treated as in common practice. An incremental dynamic analysis of the three-story RC building subjected to one far-field and one near-fault ground motion, denoted as CHY047 and TCU052, respectively, was conducted. In comparison with the far-field ground motion, the near-fault ground motion is more destructive to this building. In addition, the effect of the selected near-fault ground motion (i.e. TCU052) on the building’s collapse is clearly identified.

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Inelastic Deformation of One-Story Asymmetric-Plan Systems Subjected to Strong Earthquake Ground Motions

Earthquake Spectra ◽

10.1193/1.1585797 ◽

1994 ◽

Vol 10 (4) ◽

pp. 777-790 ◽

Cited By ~ 1

Author(s):

Masakazu Ozaki ◽

Tatsuya Azuhata ◽

Toru Takahashi ◽

M. Shaomei

Keyword(s):

Strong Earthquake ◽

Ground Motions ◽

System Response ◽

Vibration Period ◽

Torsional Strength ◽

Inelastic Response ◽

Earthquake Ground Motions ◽

Strength Capacity ◽

Building Systems ◽

Story Building

Inelastic response of one-story building systems with eccentricity is investigated based on linear static and nonlinear dynamic analyses using asymmetric-plan systems simultaneously subjected to strong earthquake ground motions in the x- and y-directions. Inelastic story drift ratios in the x- and y-directions are evaluated considering shear and torsional strength capacity and the corresponding shear force and torsional moment acting in each direction of asymmetric-plan system. Response analysis of one-story systems with one-axis plan asymmetry and varying parameters such as uncoupled lateral vibration period, torsion-to-lateral frequency ratio, rigidity and strength eccentricities, and shear and torsional strength capacity ratio is carried out and compared with those of corresponding one-story symmetric systems. In addition, inelastic response of one-story building systems with two-axes eccentricity including a L-shape asymmetric-plan system is also investigated.

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Study of a New Type SMA Damper

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.250-253.2897 ◽

2011 ◽

Vol 250-253 ◽

pp. 2897-2901

Author(s):

Jie Ying Sui ◽

Chen Ming Xu ◽

Wen Feng Liu

Keyword(s):

Energy Dissipation ◽

Dynamic Analysis ◽

Seismic Response ◽

Time History ◽

Seismic Vibration ◽

Passive Energy Dissipation ◽

New Type ◽

Story Building

In this paper, a new type SMA damper making use of SMA wire was designed. When the damper was in a tensile, compressed or tensional condition, the SMA wire is always in the condition of tension. The passive energy dissipation control of seismic vibration makes use of the super elasticity and high damping of tensile SMA wire. On the basis of the study of a 10-story building, five groups of the placement of the damper are used in time-history dynamic analysis .By contrasting the five different results, the influencing rules of the placement of the damper on seismic response of the structure can be concluded.

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Seismic Response of Ceiling/Sprinkler Piping Nonstructural Systems in NEES TIPS/NEES Nonstructural/NIED Collaborative Tests on a Full Scale 5-Story Building

Structures Congress 2012 ◽

10.1061/9780784412367.118 ◽

2012 ◽

Cited By ~ 13

Author(s):

Siavash Soroushian ◽

Keri L. Ryan ◽

Manos Maragakis ◽

Eiji Sato ◽

Tomohiro Sasaki ◽

...

Keyword(s):

Seismic Response ◽

Full Scale ◽

Nonstructural Systems ◽

Collaborative Tests ◽

Story Building

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Using upper storeys as semi-active tuned mass damper building systems

Bulletin of the New Zealand Society for Earthquake Engineering ◽

10.5459/bnzsee.43.2.126-133 ◽

2010 ◽

Vol 43 (2) ◽

pp. 126-133

Author(s):

M. H. Chey ◽

Geoffrey W. Rodgers ◽

J. Geoffrey Chase ◽

John B. Mander

Keyword(s):

Seismic Response ◽

Time History ◽

Tuned Mass Damper ◽

Reduction Factor ◽

Degree Of Freedom ◽

Future Design ◽

Mdof Systems ◽

Building Systems ◽

Mass Damper ◽

Log Normal

This paper presents an exploratory case study based analysis of the seismic performance of multi-storey passive and semi-active tuned mass damper (PTMD and SATMD) building systems are investigated for 12-storey moment resisting frames modelled as ‘10+2’ storey and ‘8+4’ storey. Segmented upper stories of the structure are isolated as a tuned mass, and a passive viscous damper or semi-active resetable device is adopted for energy dissipation. Optimum TMD control parameters and appropriate matching SATMD configurations are adopted from a companion study on a simplified two degree of freedom (2-DOF) system. Log-normal statistical performance results are presented for 30 probabilistically scaled earthquake records. The time history analysis and normalised reduction factor results show the response reductions for all seismic hazards. Thus, large SATMD systems can effectively manage seismic response for multi degree of freedom (MDOF) systems across a broad range of ground motions in comparison to passive solutions. This research demonstrates the validity of the TMD building systems for consideration in future design and construction. It also provides a template for the design and analysis of passive or semi-active TMD buildings utilising large masses, or more efficiently, added storys, for improving seismic response performance.

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