Modular and Offsite Construction (MOC) Summit Proceedings最新文献_第5页

Open Source Timber Systems as a Democratic Tool for Construction 开源木材系统作为一种民主的建筑工具

Modular and Offsite Construction (MOC) Summit Proceedings Pub Date : 2019-05-24 DOI: 10.29173/MOCS86

U. Dangel

{"title":"Open Source Timber Systems as a Democratic Tool for Construction","authors":"U. Dangel","doi":"10.29173/MOCS86","DOIUrl":"https://doi.org/10.29173/MOCS86","url":null,"abstract":"Architecture, as it exists today, is deeply rooted in perceptions that were established during the Renaissance, which credited the architect as the sole author of creative thinking processes and the resultant design ideas. Since then, the architectural profession has desired to develop new and innovative ways of building, often without being bound by traditions, the environment, or any other constraints and limitations. This approach has frequently failed to address the needs and concerns of many. As a result, architects have not been successful in imparting significant social change that is valuable to large portions of the population. In contrast, however, many other industries have adopted shared design and production practices for the benefit of the masses, warranting further exploration into how architectural practice might evolve its current modes of operation. Wood as a building material has many beneficial characteristics–specifically its widespread availability, versatility, and ease of workability–which make it particularly suitable for investigating shared authorship and collective production methodologies. As an alternative to steel and concrete for mid-rise and high-rise buildings, mass timber construction, in particular, has experienced significant advancements in recent years, resulting in the development of entirely new building processes that rely on innovative engineered wood products, digital manufacturing, and prefabrication techniques. However, this has frequently led to expensive one-off proprietary solutions that are limited in their application. To foster innovation and disseminate knowledge, an open source culture of designing and sharing is necessary. To this end, this paper will present approaches for open source mass timber construction systems that can be applied to a wide range of scenarios and settings, with the aim of ultimately increasing the acceptance and market share of wood construction for the benefit of society at large.","PeriodicalId":422911,"journal":{"name":"Modular and Offsite Construction (MOC) Summit Proceedings","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115545064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lean Construction Supply Chain: A Bibliometric Analysis of the Knowledge Base 精益建筑供应链:知识库的文献计量分析

Modular and Offsite Construction (MOC) Summit Proceedings Pub Date : 2019-05-24 DOI: 10.29173/MOCS110

T. Osunsanmi, Ayodeji Emmanuel Oke, C. Aigbavboa

{"title":"Lean Construction Supply Chain: A Bibliometric Analysis of the Knowledge Base","authors":"T. Osunsanmi, Ayodeji Emmanuel Oke, C. Aigbavboa","doi":"10.29173/MOCS110","DOIUrl":"https://doi.org/10.29173/MOCS110","url":null,"abstract":"The construction industry known for its adoption of ideas from other industries has also adopted lean thinking from the manufacturing sector for managing construction supply chains. Towards the successful adoption of this concept, there is a need to establish the philosophy surrounding is application within the construction industry. Thus, this study conducts a bibliometric analysis with the intention of discovering intellectual progress within lean concepts, relevant authors and philosophies surrounding lean construction supply chain concepts. The study adopted VOSviewer software through the assistance of citation, co-citation and keywords analysis to present a bibliometric and network analysis. A total of eight hundred and fifty Scopus indexed articles were extracted and used for the analysis. Through the analysis we have revealed the most important authors, journals and articles supporting lean concept. Also discovered are the major school of thought related to lean construction supply chain which are; waste reduction, just in time, integration and pre-fabrication. This review points to the benefits of using bibliometric network analysis for unearthing the practices of lean construction supply chain. These findings contribute to using a new research methodology for analysing the contribution of lean concept to the construction supply chain.","PeriodicalId":422911,"journal":{"name":"Modular and Offsite Construction (MOC) Summit Proceedings","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123969390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Investigation of Influencing Factors on Air Leakage of Canadian Dwellings 加拿大住宅漏风影响因素调查

Modular and Offsite Construction (MOC) Summit Proceedings Pub Date : 2019-05-24 DOI: 10.29173/MOCS136

M. Ismaiel, Yuxiang Chen

{"title":"Investigation of Influencing Factors on Air Leakage of Canadian Dwellings","authors":"M. Ismaiel, Yuxiang Chen","doi":"10.29173/MOCS136","DOIUrl":"https://doi.org/10.29173/MOCS136","url":null,"abstract":"Air leakage is one of the main influencing factors in buildings’ thermal performance. The adverse effects of poor air leakage include higher energy costs, consumption in space heating and cooling, poor thermal comfort, corrosion, and the growth of molds due to air leakage induced condensation. The main objective of this study is to investigate the characteristics of air leakages of Canadian homes related to construction methods, age, size and climatic zones. The air leakage test results of 226,000 dwellings in three provinces of Canada were analyzed. Statistical analysis was utilized to compare the mean of air leakage with respect to different factors. Generally, the air leakage decreased by 40% in the period from 1960 until 2018, which has shown a remarkable effect of new construction techniques on air leakage. Investigations also indicated that the average air leakage rate of homes constructed by using the onsite technique is approximately 25% to 60% higher than those prefabricated in modular or panels, varying with respect to the workmanship and construction quality control. This study concluded that the prefabricated construction techniques could decrease the air leakage rate significantly, which will have a remarkable effect on buildings’ thermal performance as well as home’s heating and cooling costs. The findings contribute to estimating the effects of influencing factors on air leakage, also it is useful in performance simulations, HAVC sizing and energy management. And recommend the use of the prefabricated in modular or panel’s construction method to achieve better and acceptable air leakage performance.","PeriodicalId":422911,"journal":{"name":"Modular and Offsite Construction (MOC) Summit Proceedings","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128299656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effect of Loading Speed on the Mechanical Properties of Nail Joints 加载速度对钉接头力学性能的影响

Modular and Offsite Construction (MOC) Summit Proceedings Pub Date : 2019-05-24 DOI: 10.29173/MOCS127

Shervin Shameli Derakshan, Lina Zhou, C. Ni

{"title":"Effect of Loading Speed on the Mechanical Properties of Nail Joints","authors":"Shervin Shameli Derakshan, Lina Zhou, C. Ni","doi":"10.29173/MOCS127","DOIUrl":"https://doi.org/10.29173/MOCS127","url":null,"abstract":"Wood shear walls are the main lateral load resisting systems in light wood frame buildings to resist the wind and seismic loads. Sheathing to lumber nail connections are regarded as the key components that control the resistance and failure modes of wood shear walls. Considerable experimental tests have been conducted on performance of nail joints or wood shear walls under both static and reversed cyclic loads. However, these tests were usually conducted under different loading speed causing specimen failure in 1 min to an hour. It is unclear how the loading speed will affect the test results of nail joints or wood shear walls. Research on these topics is limited. This paper aims to evaluate the effect of loading speed on the mechanical characteristics of nail joints. 72 specimens have been tested under various loading speeds, ranging from 0.05 mm/s to 0.5 mm/s for monotonic tests and 1.5 mm/s to 15 mm/s for reversed cyclic tests. The range of loading speed was selected based on the total estimated loading time that both monotonic and reversed cyclic tests fail within around 1 min to 10 min. Two groups of nail joints, comprising two common nail sizes and two sheathing thicknesses, were assessed under both monotonic and reversed cyclic loads. From the test results, the effect of loading speed on the mechanical properties of nail joints was determined.","PeriodicalId":422911,"journal":{"name":"Modular and Offsite Construction (MOC) Summit Proceedings","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125617452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of Rigging System for Prefabricated Wood I-joist Floor Panels 预制工字楼板索具系统的研制

Modular and Offsite Construction (MOC) Summit Proceedings Pub Date : 2019-05-24 DOI: 10.29173/MOCS124

Sigong Zhang, Y. Chui, David Joo, Jean-Philippe Letarte, Luca Dalcastagne

{"title":"Development of Rigging System for Prefabricated Wood I-joist Floor Panels","authors":"Sigong Zhang, Y. Chui, David Joo, Jean-Philippe Letarte, Luca Dalcastagne","doi":"10.29173/MOCS124","DOIUrl":"https://doi.org/10.29173/MOCS124","url":null,"abstract":"Panelized building construction are highly mechanized. Material handling and lifting equipment dominate construction sites and constitute the critical element in achieving productivity. In recent construction practice, panelized wood I-joist floor panels are normally lifted into place by mobile crane using flexible slings inserted through the predrilled holes on the I-joist web and sheathing panels above the I-joist top flange and then wrapped around the I-joists at the four corners. However, the pre-drilled holes on the web and sheathing may weaken the floor panels. Moreover, a range of techniques for lifting and handling mass timber panels have been developed. A typical rigging technique consists of a lifting ring and a steel plate with pre-drilled holes. By using several self-tapping screws, the panel was connected with the rigging device for lifting. However, since prefabricated I-joist floor panels are much lighter than mass timber panels and the I-joist flange is relatively narrow and thin, the rigging device for mass timber panels cannot be applied directly to I-joist floor panels, but a modified design can be developed for prefabricated I-joist floor panels. In the present study, a new rigging device was designed for prefabricated wood I-joist panels and their load capacity was evaluated by withdrawal tests. Several factors influencing the withdrawal capacity were investigated including screw types and quantities, flange width and materials, and OSB thickness.","PeriodicalId":422911,"journal":{"name":"Modular and Offsite Construction (MOC) Summit Proceedings","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122635216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Value Proposition of RFID Technology in Tall Prefabricated Timber Buildings RFID技术在高层预制木结构建筑中的价值主张

Modular and Offsite Construction (MOC) Summit Proceedings Pub Date : 2019-05-24 DOI: 10.29173/MOCS92

P. Forsythe, A. A. F. Fini, A. J. Yazdi

{"title":"The Value Proposition of RFID Technology in Tall Prefabricated Timber Buildings","authors":"P. Forsythe, A. A. F. Fini, A. J. Yazdi","doi":"10.29173/MOCS92","DOIUrl":"https://doi.org/10.29173/MOCS92","url":null,"abstract":"The full benefit of prefabricated timber systems in the construction of multi-story buildings depends on integration and efficiency in the upstream logistics and supply chain. The purpose of this research is therefore to determine the potential value that the use of Radio-Frequency Identification technology (RFID) can contribute to the prefabricated construction of timber, and to undertake the basic development of a RFID tracking model for this purpose. The methods used in this study not only build on the knowledge gained from previous literature, but also include interviews with industry experts, field trial design and field trials. The research showed that the RFID tracking system's value proposition tends to be strongest where there are large scale and vertically integrated supply chains, logistics complexity between a limited number of discrete but partnered supply chain links and/or internal logistical complexity problems. Therefore, five distinct added value stages of RFID applications have been found in incoming delivery logistics, factory panel production, outgoing delivery logistics, on-site installation and third parties who can inspect the finished construction work. Application of RFID technology in prefabrication factory environments, where fixed readers can be used in predefined processes, was found promising. However, due to the temporary nature of the sites and the associated investment, the capacity for high automation levels is thought to be more limited on site.","PeriodicalId":422911,"journal":{"name":"Modular and Offsite Construction (MOC) Summit Proceedings","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133759181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Strategies for Building Information Modelling Adoption in the South African Construction Industry 南非建筑业采用建筑信息模型的策略

Modular and Offsite Construction (MOC) Summit Proceedings Pub Date : 2019-05-24 DOI: 10.29173/MOCS133

T. B. Odubiyi, C. Aigbavboa, W. Thwala, Nendy Netshidane

引用次数: 4

Environmental Benefits of Reusable Modular Mass Timber Construction for Residential use in Japan: an LCA Approach 日本住宅用可重复使用模块化木结构的环境效益:LCA方法

Modular and Offsite Construction (MOC) Summit Proceedings Pub Date : 2019-05-24 DOI: 10.29173/MOCS89

R. Passarelli

{"title":"Environmental Benefits of Reusable Modular Mass Timber Construction for Residential use in Japan: an LCA Approach","authors":"R. Passarelli","doi":"10.29173/MOCS89","DOIUrl":"https://doi.org/10.29173/MOCS89","url":null,"abstract":"The demand for wooden buildings in Japan consistently reaches figures over 50 million square meters per year. However, the building industry in Japan is based on the constant renewal of the building stock, leading to a short average lifespan, and an unsustainable and wasteful system both from the environmental and economic point of view. As an alternative to this situation, this study assesses the environmental benefits of a modular mass timber system using CLT, designed for consecutive reuse. First, the study presents an award-winning proposal for a modular, reusable mass timber system for residential construction in Japan. After, the study calculates the Global Warming Potential of construction (GWP) of the reusable system in comparison to a conventional mass timber system (benchmark), using the Lifecycle Assessment (LCA) method. The study evaluates the proposed system in two different locations, within 60 years. Three different scenarios for forest resources are considered during the above time-frame, namely stable forest (standard), growing forest (optimistic) and decreasing forest resources (pessimist) to understand how changes in the carbon flow of forests could impact the environmental output of the construction. The results show a modular construction system can be used to provide high-quality dwellings in Japan leading to a significant potential for mitigating the impacts of construction on the environment. More specifically, a growing forest scenario provides the smallest GWP, more than 100% smaller than the benchmark.","PeriodicalId":422911,"journal":{"name":"Modular and Offsite Construction (MOC) Summit Proceedings","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126108826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Cost Evolution Throughout the Construction Value Chain 整个建筑价值链的成本演变

Modular and Offsite Construction (MOC) Summit Proceedings Pub Date : 2019-05-24 DOI: 10.29173/MOCS74

Zakaria Dakhli, Z. Lafhaj

引用次数: 0

Accessibility-Based Location Selection for Building Panelized Housing for Seniors 基于可达性的老年板式住宅选址

Modular and Offsite Construction (MOC) Summit Proceedings Pub Date : 2019-05-24 DOI: 10.29173/MOCS81

Yuan Chen, Xianfei Yin, A. Bouferguene, Yuxuan Zhang, M. Al-Hussein, Bingsheng Liu

{"title":"Accessibility-Based Location Selection for Building Panelized Housing for Seniors","authors":"Yuan Chen, Xianfei Yin, A. Bouferguene, Yuxuan Zhang, M. Al-Hussein, Bingsheng Liu","doi":"10.29173/MOCS81","DOIUrl":"https://doi.org/10.29173/MOCS81","url":null,"abstract":"Population ageing is stimulating an increase in the demand for housing suitable for seniors. To meet the demand, the market share of senior housing needs to increase substantially in a relatively short period of time; therefore, panelized construction, as an efficient, economical, and environmentally-friendly construction method, can be regarded as a promising building approach to meet urgent demand for multi-unit housing. However, prior to construction, decisions regarding the location selection for building panelized housing can have a great influence on the level of accessibility that seniors have to neighbouring facilities and services, further affecting their health and quality of life. Based on this, the research presented in this paper aims to search potential land areas for panelized housing developments for seniors from the perspective of accessibility. A set of methods is proposed to define the opportunities and constraints for potential land, measure the accessibility, and select the most suitable location for senior housing by means of suitability analysis. A case study of Edmonton is then analyzed to illustrate the application of these methods.","PeriodicalId":422911,"journal":{"name":"Modular and Offsite Construction (MOC) Summit Proceedings","volume":"168 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129978181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0