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Development of Design Response Spectra Based on Various Attenuation Relationships at Specific Location

Journal of Civil Engineering and Architecture 2013年第12期7卷 1501-1506页

作者： Hapsa Husen Taksiah Abdul Majid Fadzli Mohamed Nazri Mohd Rashwan Arshad Ade Faisal Sift Khadijah Che Osmi Civil Engineering Department Faculty of Engineering Universiti Pertahanan Nasional Malaysia Kuala Lumpur 57000Malaysia School of Civil Engineering Universiti Sains Malaysia Pulau Pinang 14300 Malaysia

Peninsular Malaysia is located and lies in a low seismic region. Although Malaysia is not located in the active fault seismic area, it is closed to the sumatran active seismic zones. Tall building are fIequently felt the tremor generated fTom sumatran subduction and fault zones especially in the west cost of Peninsular Malaysia such as Johor Bahru, Kuala Lumpur and Penang. Existing design response spectra was developed based on attenuation relationship for each subduction and fault zone. In this study, the design response spectra were developed based on various attenuation relationships for selected location in Kuala Lumpur area, namely, Mutiara Damansara, Bandar Petaling Jaya and Bandar Puteri Puchong. The development of design response spectra based on various attenuation relationships is more reliable in selecting the appropriate attenuation relationship for the study area. Seven attenuations have been chosen and results show that Megawati et al. are the most appropriate attenuation relation for fault zone, where the predicted PGA （peak ground acceleration） is 0.0187 g which is the proposed PGA value for this study area. This study also found that most of soil in the study area can be categorized into SD （stiff soil） according to site classification in the NEHRP 2000 Provision/UBC 97. Bandar petaling Jaya was found to be highest AF （amplification factor） of 3.74 for stiff soil and Mutiara Damansara with AF of 2.67 for very dense soil or soft rock. The proposed design response spectra for each location were developed based on UBC 1997 （Uniform Building Code 1997）. The peak RSA （response spectrum acceleration） of 0.30 g for soil type SD for Bandar Petaling Jaya is the maximum level of acceleration on the soil surface with a period range of 0.10 to 0.52 seconds. All these values can be used for the seismic safety evaluation of existing structures and as a guideline in designing new structures to resist future earthquake, within the study area.

关键词： Attenuation relationship PGA (peak ground acceleration) response spectrum acceleration response spectra sumatra subduction zone sumatra fault zone.

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