Multi-Record Incremental Dynamic Analysis of an IBC-Designed Wood Frame Building

Abstract eng:
The current International Building Code (IBC) allows wood frame (light-frame wood) construction to be three stories high or four stories if sprinklers are included in the design. Several jurisdictions within the U.S. have opted to allow four stories and five if sprinklers are present. This paper presents a comprehensive numerical analysis of a six-story wood frame building designed based on the 2006 IBC methodology. Incremental Dynamic Analysis is used to numerically investigate the performance of the building based on three criteria: Criteria 1 is the inter-story drift at each level recorded as the geometric center of the story level; Criteria 2 is the drift for the controlling wall in the building; and Criteria 3 is the peak drift at roof level. The building was found to perform very well even without the consideration of gypsum wall board (GWB) at low to moderate levels of excitation up to the design-basis earthquake. However, excessive drifts in all three cases were identified at the Maximum Credible Earthquake (MCE) level when GWB was not included in the analysis. When GWB was included in the analysis the performance of the structure was very good until a spectral acceleration of 1.2g was reached.

• Export as: BibTeX | MARC | MARCXML | DC | EndNote | NLM | RefWorks
• Add to your basket