scholarly journals A summary of the structural performance of single-family, wood-frame housing

1998 ◽  
Author(s):  
Charles W Yancey ◽  
Geraldine S Cheok ◽  
Fahim Sadek ◽  
Bijan Mohraz
Keyword(s):  
Structural Performance ◽  
Single Family ◽  
Wood Frame

Experimental evaluation of an orthotropic, monolithic, modular wooden-dome structural system

2008 ◽  
Vol 35 (10) ◽  
pp. 1163-1176
Author(s):  
Mehdi H.K. Kharrazi ◽  
Salah Eldeib ◽  
Helmut G.L. Prion
Keyword(s):  
Load Resistance ◽  
Housing System ◽  
Structural Performance ◽  
Test Results ◽  
Single Family ◽  
Construction Time ◽  
University Of British Columbia ◽  
Load Tests ◽  
Wood Frame ◽  
Frame Construction

Canadian Wooden Dome (CWD) is an innovative orthotropic, monolithic modular sectional building system. The main frame of these structures is built using mill trim ends that are normally chipped or used for finger-jointing. The structure, in comparison to conventional wood-frame single-family housing, has a rapid manufacturing process, and quick, on-site assembly attempts to reduce overall construction time. Presented with these advantages and the uniqueness of the wooden-dome system, a technical study was initiated to investigate the structural performance of the modular wooden dome in earthquake-prone areas and to examine its load resistance to heavy snow. This paper describes the results from a series of static and dynamic load tests conducted on the CWD as part of this study. The test results generally indicated that based on the structural performance of the CWD under static and dynamic loads, the CWD could be an alternative to the conventional wood-frame construction system. The test results are then compared with those obtained from the tests conducted on conventional single-family wood-frame houses as part of the Earthquake 99 (EQ-99) Woodframe House Project at The University of British Columbia. The seismic performance of the CWD was superior to that of the nonengineered housing system and comparable to that of the engineered wood-frame housing system.

Implementation of Plan Irregularity Rapid Visual Screening Tool for Wood-Frame, Single-Family Dwellings

2013 ◽  
Vol 17 (4) ◽  
pp. 497-516 ◽  
Author(s):  
K. Lucksiri ◽  
T. H. Miller ◽  
R. Gupta ◽  
S. Pei ◽  
J. W. van de Lindt
Keyword(s):  
Screening Tool ◽  
Single Family ◽  
Rapid Visual Screening ◽  
Visual Screening ◽  
Wood Frame

scholarly journals Multi-objective parametric study of a wooden window

2019 ◽  
Vol 282 ◽  
pp. 02078
Author(s):  
Klodian Gradeci ◽  
Nathalie Labonnote ◽  
Steinar Grynning
Keyword(s):  
Parametric Study ◽  
Parametric Analysis ◽  
Energy Use ◽  
Global Sensitivity Analysis ◽  
Structural Performance ◽  
Form Finding ◽  
Multi Objective ◽  
Element Simulation ◽  
Wood Frame ◽  
The Impact

The aim of this study is to conduct a multi-objective parametric study by simultaneously analysing the thermal and structural performance of a wood-frame window. The finite element simulation program COMSOL is used to carry out the thermal and structural analysis. A global sensitivity analysis is performed to screen and rank the dominant parameters. Afterwards, a parametric analysis is performed by varying the dominant parameters. The results demonstrate that the performance of the frame configuration of the wooden window can be improved from the nominal configuration. The results suggest that the methodology can be further improved by conducting form-finding and typology-based optimization studies while accounting further for the impact of the window on the energy use for heating in buildings.

Structural performance of buildings during the 30 November 2018 M7.1 Anchorage, Alaska earthquake

2021 ◽  
pp. 875529302110435
Author(s):  
Wael M Hassan ◽  
Janise Rodgers ◽  
Christopher Motter ◽  
John Thornley
Keyword(s):  
Structural Damage ◽  
Seismic Vulnerability ◽  
The United States ◽  
Structural Performance ◽  
Single Family ◽  
Steel Buildings ◽  
Test Bed ◽  
Building Stock ◽  
Ground Acceleration ◽  
Nonstructural Components

Southcentral Alaska, the most populous region in Alaska, was violently shaken by a Mw 7.1 earthquake on 30 November 2018 at 8:29 am Alaska Standard Time. This was the largest magnitude earthquake in the United States close to a population center in over 50 years. The earthquake was 46 km deep, and the epicenter was 12 km north of Anchorage and 19 km west of Eagle River. The event affected some 400,000 residents, causing widespread damage in highways, nonstructural components, non-engineered and older buildings, and structures on poorly compacted fills. A few isolated serious injuries and partial collapses took place. Minor structural damage to code-conforming buildings was observed. A significant percentage of the structural damage was due to geotechnical failures. Building stock diversity allows use of the region as a large test bed to observe how local building practices affected earthquake damage levels. The prevailing peak ground acceleration (PGA) was 0.2–0.32 g, causing shaking intensity at most sites of 50%–60% of the ASCE 7-16 design basis earthquake acceleration. Thus, the seismic vulnerability of building stock in the region was not truly tested. Reinforced concrete buildings had minor structural damage, except in a few cases of shear wall and transfer girder shear cracking. Fiber-reinforced polymer (FRP)-retrofitted buildings performed satisfactorily. Concrete-masonry-unit (CMU) masonry buildings experienced serious structural damage in many cases, including relatively newer buildings. The earthquake caused widespread structural damage in non-engineered buildings (primarily wood and CMU masonry) that exist widely in the region, especially in Eagle River. Of these, non-engineered single-family wood buildings had the heaviest structural damage. No structural damage could be observed in steel buildings. The aftershock sequence, which included 7 M5+ and 50 M4+ events, exacerbated structural damage in all types of buildings. The present study is based on the EERI field reconnaissance mission conducted by the authors following the earthquake. Based on the observed damage and structural performance, seismic risk mitigation recommendations are suggested.

scholarly journals Tightness of Single-Family Buildings Made in Prefabricated Wood Frame Technology

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4500
Author(s):  
Artur Nowoświat ◽  
Iwona Pokorska-Silva ◽  
Mateusz Konewecki
Keyword(s):  
Residential Buildings ◽  
Statistical Hypothesis ◽  
Single Family ◽  
Qualitative And Quantitative ◽  
Roof Structure ◽  
Wood Frame ◽  
Frame Technology ◽  
The Impact ◽  
Wall System ◽  
Made In

The overall objective of the study is to determine the influence of various factors on the tightness of frame-based buildings. The study presents airtightness tests—Blow Doors Tests of single-family residential buildings made in the prefabricated wood frame technology. Primarily, the impact of selected quantitative and qualitative parameters on the determined quantity n50 was defined. For that purpose, correlation analyses were performed and the statistical hypothesis stating that there is no statistically significant linear relationship between n50 (a multiplication factor of air exchange in the building effected by pressure difference of 50 Pa) and the specified qualitative and quantitative parameters was verified. The hypothesis was verified using the F and χ2 statistics. The studies demonstrated that there are no grounds to reject the research hypothesis. The obtained results formulate a comprehensive conclusion that allows to test the tightness of buildings made in the prefabricated wood frame technology and makes the tightness results independent of many features of the examined building. Ultimately, the tightness results are only dependent on the leak of the examined object. They do not depend on roof structure, wall system, floor area, cubature, number of window openings, porch.

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