in this article, we tried to emphasis in how the range of torsionally stiff and flexible single story buildings works. the designed base was according to provisions of the canadian standard, 2005 nbcc. the behavior of nonlinear dynamic time history of eight building models subjected to seven horizontal bi-directional ground motions compatible with design spectra are investigated. these models c...

With recent changes to the National Building Code of Canada (NBCC) in 2005 there has been an increasing demand for site classification based on dynamic shear wave velocity measurements of soil and rock. There are three seismic methods typically used for the NBCC seismic site classification; multichannel analysis of surface waves, vertical seismic profiling, and crosshole seismic testing. Typica...

This article presents an overview of results from the 1980–1992 survey of snow loads and densities on roofs in deep snow areas of British Columbia with particular emphasis on results from an extensive survey at the ski village on Mt. Washington, Vancouver Island, where the 30-year return ground snow load is 21 kPa. The article makes recommendations for the design of buildings in deep snow areas...

While damping devices can provide supplemental to mitigate building vibration due wind or earthquake effects, integrating them into the design is more complex. For example, Canadian code does not designs with inline friction dampers. The objective of this present article was study overstrength, ductility, and response modification factors concrete frame buildings dampers in context. that purpos...

Low-sloped roofs such as commercial and high-rise buildings in a dense urban area provide vast “unused” surfaces that can be used to manage storm-water mitigate flooding. Storm-water Detention Assembly (SDA) known “blue roof” exerts advanced drainage technologies operational strategies store-and-release during after heavy rainfall events. SDA reduce peak flow decrease run-off volume. However, t...

In recent years, reliability-based design (RBD) has gradually gained popularity in geotechnical engineering. Several RBD codes have been developed and implemented around the world that calibrate ultimate limit state (ULS) designs for a target ULS reliability index (βuls). However, the serviceability limit state (SLS) design still is considered using conventional deterministic approaches with an...

Building elements are required to provide sufficient fire resistance based on requirements set forth in the National Code of Canada (NBCC). Annex B Canadian standard for wood engineering design (CSA O86-19) provides a methodology calculate structural fire-resistance large cross-section timber elements. However, it lacks at providing provisions connections. The objectives this study understand p...

This paper explored the effect of building shape on the wind-induced response of a structure through a comprehensive investigation of wind tunnel studies performed at Rowan Williams Davies and Irwin, Inc. (RWDI). The study focused on buildings with foot prints of square, circular, triangular, rectangular and elliptical shapes. Seed buildings were selected from an inventory of structures previou...

In this article, we tried to emphasis in how the range of torsionally stiff and flexible single story buildings works. The designed base was according to provisions of the Canadian standard, 2005 NBCC. The behavior of nonlinear dynamic time history of eight building models subjected to seven horizontal bi-directional ground motions compatible with design spectra are investigated. These models c...