scholarly journals Acoustical evaluation of a single family attached wood-frame modular housing system constructed on an Operation Breakthrough prototype site

1973 ◽  
Author(s):  
Thomas L Quindry
2008 ◽  
Vol 35 (10) ◽  
pp. 1163-1176
Author(s):  
Mehdi H.K. Kharrazi ◽  
Salah Eldeib ◽  
Helmut G.L. Prion

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.


2019 ◽  
Vol 12 (1) ◽  
pp. 284 ◽  
Author(s):  
Julie C. Faure ◽  
Kasey M. Faust ◽  
Jessica Kaminsky

Sudden population influxes into cities—such as those seen during post-disaster migration—place unexpected demands on the urban housing system. Decisions made during these influxes are often controversial, potentially hindering the ability of the organizations involved to respond. This study’s objective was to explore strategies (e.g., types of information shared and types of accommodation chosen) that can be used during decision-making processes when providing emergency accommodations to increase stakeholder acceptance, and thus lead to sustainable institutional responses. This study specifically sought to shed light on how, during the Refugee Crisis in Germany of 2015 and 2016, stakeholders legitimized decisions made to provide centralized emergency accommodations to displaced persons. Making this study possible were 25 semi-structured interviews with utility, government, nonprofit, and company employees involved in the provision of centralized accommodations for displaced persons. Interviews were conducted in 2016 and underwent a qualitative analysis. Results indicate that stakeholders primarily legitimized the provision of centralized accommodations based on convictions of right and wrong (moral legitimacy), while they legitimized decisions to not provide such accommodations based on their understanding and experience of practical barriers (cultural-cognitive legitimacy). Recommendations arising from this study include the following: provide information to stakeholders about accommodations’ livability (to gain consequential legitimacy) and past successes (to gain comprehensibility legitimacy), adapt regulations to help stakeholders use procedural legitimacy, and prefer fully renovated buildings or modular housing to buildings with no major renovations or container housing (to gain consequential rather than procedural legitimacy).


2013 ◽  
Vol 17 (4) ◽  
pp. 497-516 ◽  
Author(s):  
K. Lucksiri ◽  
T. H. Miller ◽  
R. Gupta ◽  
S. Pei ◽  
J. W. van de Lindt

Author(s):  
Caroline Hachem-vermette ◽  
Chinyere Dara ◽  
Rhys Kane

The paper summarizes an investigation of the performance of container based housing units developed by Ladacor Ltd, and compares this performance to traditional housing constructed according to existing standards and codes. The results indicate that the case study housing system can reduce thermal loads (heating and cooling) by about 57% as compared to the same house designed according to the code. Implementing additional efficiency measures and solar design strategies such as increased south window size, suitable shading devices, thermal mass, and more airtight construction, leads to improved performance. This enhanced scenario can reduce the thermal load by 72% as compared to the code scenario and by about 35% as compared to the original case study system. Achieving a net-zero energy status can be reached by integrating photovoltaics on the south roof of the single-family housing designed with Ladacor roof, assuming energy efficient appliances, lighting and domestic hot water. The optimal case can reach a net positive energy status, with a PV system integrated on the south facing roof surface. Results from this investigation can serve in developing innovative design concepts and guidelines for the design of low cost, self-sufficient modular housing.


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