The building code of any country is considered to be a basic technical guidance document for the seismic design of structures. However, building codes are typically developed for the whole country, without considering site specific models that incorporate detailed site-specific data. Therefore, the adequacy of the design spectrum for building codes may sometimes be questionable. To study the sufficiency of the building codes of Pakistan (BCP-SP-2007), a deterministic seismic hazard analysis (DSHA) based spectrum was developed for a site in the Muzaffargarh area, Pakistan, using an updated earthquake catalogue, seismic source model, and a next generation attenuation model (NGA-WEST-2). Further, an International Building Code (IBC-2000) spectrum was developed for the study area to compare the results. The DSHA-based response spectrum resulted in a peak ground acceleration (PGA) value of 0.21 g for the Chaudwan fault. The evaluation of BCP-SP-2007 and IBC-2000 spectra provided a critical assessment for analyzing the associated margins. A comparison with the DSHA-based response spectrum showed that the BCP-SP-2007 design spectrum mostly overlapped with the DSHA spectrum unlike IBC-2000. However, special attention is needed for designing buildings in the study area when considering earthquake periods longer than 1 s, and the BCP-SP-2007 spectrum can be enhanced when considering a period range of 0.12–0.64 s. Finally, BCP-SP-2007 is based on a probabilistic approach and its comparison with deterministic results showed the significance of both methods in terms of design.

Naseer Ahmed;Shahid Ghazi

Institute of Geology,University of Punjab,Lahore 54000,Pakistan;Centre for Geographic Information System,University of Punjab,Lahore 54000,Pakistan

地震学报（英文版）

[1]Naseer Ahmed;Shahid Ghazi-.Comparison of DSHA-based response spectrum with design response spectrum of building code of Pakistan(BCP-SP-2007) for a site in Muzaffargarh area, Pakistan)[J].地震学报（英文版）,2022(04):280-292

DSHA,Muzaffargarh,adequacy,questionable,Chaudwan

Comparison,response,spectrum,Pakistan,BCP,SP,site,area,any,country,considered,be,basic,technical,guidance,document,seismic,structures,However,codes,typically,developed,whole,without,considering,specific,models,that,incorporate,detailed,data,Therefore,may,sometimes,To,study,sufficiency,deterministic,hazard,analysis,was,using,updated,earthquake,catalogue,source,next,generation,attenuation,NGA,WEST,Further,International,Building,Code,IBC,compare,results,resulted,peak,ground,acceleration,PGA,value,fault,evaluation,spectra,provided,critical,assessment,analyzing,associated,margins,comparison,showed,mostly,overlapped,unlike,special,attention,needed,designing,buildings,when,periods,longer,than,enhanced,range,Finally,probabilistic,approach,its,significance,both,methods,terms

0.441571