ASSESSMENT OF ALTERNATIVE GROUND MOTION SIMULATION TECHNIQUES IN NONLINEAR TIME HISTORY ANALYSES OF BASE ISOLATED MULTI-STORY FRAME BUILDING: A CASE STUDY

Date

2018-09-02

Author

Ozsarac, Volkan
Karim Zadeh Naghshineh, Shaghayegh
Askan Gündoğan, Ayşegül

Metadata

Show full item record

Item Usage Stats

144
views

0
downloads

In recent decades, base isolation system for buildings has been commonly used as retrofitting strategy. Evaluation of structural responses for such a system subjected to severe earthquakes is challenging since some regions have very few and scatted ground motion data set. Simulated ground motions can be an alternative to overcome this issue. There are several ground motion simulation methods available that provide varying levels of goodness fit between observed and synthetic data; therefore, it is important to investigate the efficiency of synthetics in predicting seismic responses of structures before using them for engineering purposes. In this study, a six-storey steel moment-resisting frame is selected from the SAC Steel Project and retrofitted with lead rubber bearings (LRB) in accordance with ASCE 7-10. Then, nonlinear time history analysis of the structure is carried out using the real and simulated records of the 6 April 2009 L'Aquila (Italy) earthquake (Mw=6.3). For this purpose, simulated records of the 2009 L'Aquila earthquake generated based on both the Hybrid Integral-Composite method and the Stochastic Finite-Fault method are employed. The results of analyses from observed and the synthetic records of this event are compared in terms of maximum inter-storey drifts, displacements, accelerations at each story level and input energy. Overall, the results show that the difference in terms of the real and estimated demand parameters from two alternative ground motion simulation techniques is negligible.

URI

https://hdl.handle.net/11511/78536

Collections

Unverified, Conference / Seminar

Suggestions

OpenMETU
Core

Comparison Of Structural Responses for a Base Isolated Building Under Real and Simulated Records Ozsarac, Volkan; Karim Zadeh Naghshineh, Shaghayegh; Askan, Ayşegül (null; 2019-06-01) In recent decades, base isolation systems for buildings are commonly used as retrofitting strategy in earthquake-prone areas. Evaluation of structural responses for base-isolated systems subjected to severe earthquakes is challenging since some regions have scattered ground motion dataset. Simulated ground motions can be an alternative to overcome this issue. There are several ground motion simulation methods available that provide varying levels of goodness fit between observed and synthetic data; therefor...
COMPARISON OF REAL AND SIMULATED RECORDS IN TERMS OF SEISMIC INPUT ENERGY FOR A BASE ISOLATED STRUCTURE Özsaraç, Volkan; Karimzadeh, Shaghayegh; Askan Gündoğan, Ayşegül; Erberik, Murat Altuğ (2021-10-01) Base isolation systems have been recently employed for structures as retrofitting strategies especially in seismologically active zones. For such base isolated systems, one challenging task is the investigation of seismic demand parameters under destructive earthquakes. Since the number of recorded ground motions corresponding to large intensities is limited, use of simulated records is an alternative option to overcome this issue. There are several ground motion simulation approaches with various levels of...
Numerical Simulation of three Base Isolation Systems for Earthquake Protection of Structures Dölen, Melik (null; 2003-10-10) In a previous paper [1&2] a base isolation system was proposed for earthquake protection of structures. The system incorporates spherical supports for the base, a specially designed spring-cam system to keep the base rigidly supported under normal conditions and to allow it to move for the duration of the earthquake under the constraint of a spring with optimized stiffness characteristics. A high-rise structure was considered to investigate the feasibility of the concept. The simulation of the system respon...
Use of engineered cementitious composite panels for seismic strengthening Ayatar, Mehmet Engin; Canbay, Erdem; Department of Civil Engineering (2018) Due to the massive number of deficient buildings in seismically active zones, the demolition and rebuilding of such structures is not a viable option. Instead, rehabilitation of seismically deficient buildings is commonly employed. Although, the most preferred rehabilitation approach has been the application of RC infills to the frames, this technique inevitably causes the evacuation of the structure. Therefore, there have been many studies on new occupant-friendly strengthening techniques. The aim of this ...
Latest trends in seismic protection Caner, Alp (CRC, New York , 2020-02-01) Seismic protection devices have been used in many new and existing buildings as well as bridges all over the world for the last couple of decades. Latest trends in seismic protection have been focused more on the development of new devices which can provide easy solutions for installation and maintenance while providing the needed energy dissipation during the seismic event. This paper focuses on some new designs of seismic protection for bridges, research of new devices and performance observation of seism...

Citation Formats

V. Ozsarac, S. Karim Zadeh Naghshineh, and A. Askan Gündoğan, “ASSESSMENT OF ALTERNATIVE GROUND MOTION SIMULATION TECHNIQUES IN NONLINEAR TIME HISTORY ANALYSES OF BASE ISOLATED MULTI-STORY FRAME BUILDING: A CASE STUDY,” 2018, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/78536.