Menu
Contact Us Search
Organization Title

An Investigation of Serviceability Requirements of the 1988 UBC Seismic Provisions

by C. Uang and A. Maarouf

Uang, C., and A. Maarouf (1991). An Investigation of Serviceability Requirements of the 1988 UBC Seismic Provisions. SMIP91 Seminar on Seismological and Engineering Implications of Recent Strong-Motion Data, p. 15-1 - 15-9.

Click on the link below for the full text:

PDF (Adobe PDF (SIZE 359 KB)) - Requires Adobe Acrobat Reader or other PDF viewer.


Abstract

The Uniform Building Code (UBC) serviceability requirements to control story drift and member forces for the "moderate" design earthquake are examined. It is shown from the UBC drift limits that the intensity of the UBC-implied moderate design earthquake for buildings taller than 65 ft. is only one-sixth that of the severe design earthquake. Recorded responses of one steel and one reinforced concrete building frames which were subjected to ground excitations with an intensity similar to the UBC moderate design earthquakes are studied. The results show that, for certain ductile building systems, the UBC one-phase design procedure cannot avoid excessive story drifts and structural yielding.