Journal of Green Building最新文献_第9页

FLEXURAL STRENGTHENING OF DIMENSIONAL WOOD JOISTS WITH STEEL REINFORCEMENT 用钢筋加固尺寸木托梁的弯曲加固

IF 1.4 4区艺术学

Journal of Green Building Pub Date : 2022-01-01 DOI: 10.3992/1943-4618.17.1.21

Adam Kriegl, Kyle Blaquiere, D. Svecova

{"title":"FLEXURAL STRENGTHENING OF DIMENSIONAL WOOD JOISTS WITH STEEL REINFORCEMENT","authors":"Adam Kriegl, Kyle Blaquiere, D. Svecova","doi":"10.3992/1943-4618.17.1.21","DOIUrl":"https://doi.org/10.3992/1943-4618.17.1.21","url":null,"abstract":"\u0000 Traditional approaches to the strengthening of dimensional wood roof joist systems are often intrusive and require a substantial amount of additional labour to remove ceilings or roof sections. In an effort to design a less intrusive system for reinforcing over-stressed dimensional wood joists, a roof joist strengthening system was designed consisting of a tension steel plate installed along the bottom of the existing joists with bolted side plate connections. An experimental program was conducted at the University of Manitoba to assess the viability of the reinforcement design. A total of 15 joists were tested to failure under four-point bending conditions, consisting of 5 unreinforced control joists, 5 joists with steel reinforcement, and another 5 reinforced joists with an artificial defect introduced at mid-span along the tension side. The purpose of introducing an artificial defect at mid-span was to simulate the failure modes observed at R.W. Bobby Bend School in Stonewall, Manitoba, where certain roof joists contained knots, splits or cracks along the bottom of the joist within the mid-span region. Service loads based on the applied snow and dead loads applied to these joists were calculated using the National Building Code of Canada [1] and were approximated in the experiment as 8.5 kN. The results indicated that the steel reinforcement produced a 46.8% increase in average load-carrying capacity compared to control joists, and a 33.1% increase in capacity for reinforced joists with artificial defects. The average deflection at service loads was 19.5% lesser than the deflection of the control joists, and the apparent stiffness was determined to increase by 50.0%. The results from this research support the conclusion that the steel reinforcement system for dimensional wood joists is a viable alternative to traditional systems that effectively increases the load-carrying capacity, stiffness, and ductility of the structure.","PeriodicalId":51753,"journal":{"name":"Journal of Green Building","volume":"145 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72413346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

INCORPORATING A DISASTER-RESILIENT AND SUSTAINABLE INFRASTRUCTURE DESIGN CONCEPT, SAFE-TO-FAIL, INTO CURRICULA 将具有抗灾能力和可持续性的基础设施设计概念“安全到失败”纳入课程

IF 1.4 4区艺术学

Journal of Green Building Pub Date : 2022-01-01 DOI: 10.3992/1943-4618.17.1.249

Rubaya Rahat, Piyush Pradhananga, Mohamed ElZomor

{"title":"INCORPORATING A DISASTER-RESILIENT AND SUSTAINABLE INFRASTRUCTURE DESIGN CONCEPT, SAFE-TO-FAIL, INTO CURRICULA","authors":"Rubaya Rahat, Piyush Pradhananga, Mohamed ElZomor","doi":"10.3992/1943-4618.17.1.249","DOIUrl":"https://doi.org/10.3992/1943-4618.17.1.249","url":null,"abstract":"\u0000 With the increasing demands for resilient developments, Architecture/Engineering/ Construction (AEC) education shall be at the forefront of preparing future workforces with advanced knowledge about sustainable and resilient designs. Safe-to-Fail is a resilient urban design concept that anticipates failures during infrastructure systems planning, thus reducing the impact of natural disasters. This study aims to: (1) identify the factors influencing AEC students’ perceptions towards learning Safe-to-Fail; and (2) investigate students’ pedagogical preferences to incorporate Safe-to-Fail concepts in AEC curricula. To achieve this, the study implemented an intervention module including a comprehensive Safe-to-Fail lecture followed by an interactive discussion session and a survey to capture students’ experiences, expectations, and perceptions. The findings indicated that AEC students preferred to learn the Safe-to-Fail concept as a portion of an elective course and that the choice of learning such emerging concepts is significantly correlated to the student’s age, duration spent in the program, and prior knowledge of Safe-to-Fail. This study advocates incorporating Safe-to-Fail in AEC curricula, which provides an edge for future careers and contributes to developing resilient built environments.","PeriodicalId":51753,"journal":{"name":"Journal of Green Building","volume":"6 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85894178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ASSESSING THE ADOPTION OF CROSS LAMINATED TIMBER BY ARCHITECTS AND STRUCTURAL ENGINEERS WITHIN THE UNITED STATES 评估美国建筑师和结构工程师对交叉层压木材的采用

IF 1.4 4区艺术学

Journal of Green Building Pub Date : 2022-01-01 DOI: 10.3992/1943-4618.17.1.127

P. Penfield, R. Germain, William B. Smith, S. Stehman

{"title":"ASSESSING THE ADOPTION OF CROSS LAMINATED TIMBER BY ARCHITECTS AND STRUCTURAL ENGINEERS WITHIN THE UNITED STATES","authors":"P. Penfield, R. Germain, William B. Smith, S. Stehman","doi":"10.3992/1943-4618.17.1.127","DOIUrl":"https://doi.org/10.3992/1943-4618.17.1.127","url":null,"abstract":"\u0000 Cross Laminated Timber (CLT) is an engineered wood product for the construction industry offering multiple structural, environmental and supply chain benefits. CLT can be used for an entire building, as both the lateral and vertical load resisting system, or for select elements such as the roof, floors or walls. CLT products were developed in the early 1990’s and have been widely adopted throughout Europe, and more recently, in Canada. However, use of CLT products is still relatively rare in the US. We present the results of a nationwide phone survey in the US conducted with architects and structural engineers to gauge their awareness, rate of adoption and assimilation of CLT products. Although adoption of CLT amongst architects and structural engineers is still at a nascent level within the construction sector, awareness is high, with 100% of our sample respondents cognizant of CLT. Architects and structural engineers perceive relative advantages of using CLT as well as compatibility with traditional construction. However, the adoption process is impeded by issues associated with complexity, trialability and observability. Key barriers to adoption of CLT as perceived by these two stakeholders are lack of experience from construction stakeholders, lack of training and tools for construction management stakeholders, lack of client requests and CLT inventory.","PeriodicalId":51753,"journal":{"name":"Journal of Green Building","volume":"5 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73582202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

BASICS OF BUILDING WITH MYCELIUM-BASED BIO-COMPOSITES 基于菌丝体的生物复合材料的基础知识

IF 1.4 4区艺术学

Journal of Green Building Pub Date : 2022-01-01 DOI: 10.3992/1943-4618.17.1.37

A. Ghazvinian, Benay Gursoy

{"title":"BASICS OF BUILDING WITH MYCELIUM-BASED BIO-COMPOSITES","authors":"A. Ghazvinian, Benay Gursoy","doi":"10.3992/1943-4618.17.1.37","DOIUrl":"https://doi.org/10.3992/1943-4618.17.1.37","url":null,"abstract":"\u0000 Mycelium-based composites (MBC) are biomaterials presenting renewable and bio-degradable alternatives for a wide range of design and manufacturing processes, including the building industry. MBC result from the incomplete growth of mycelium, fibrous root systems of fungi. They can turn urban and agricultural waste into high-end products. Existing research shows that MBC can reduce fossil fuels’ reliance and embodied energy and decrease building waste. Architects recently designed and built a wide range of experimental projects with MBC. In parallel, there is a growing body of work on MBC by scholars from different disciplines, such as mycology, material science, and mechanical engineering, focusing on assessing and enhancing the material properties of MBC for various applications.\u0000 In this paper, we first provide essential knowledge on the cultivation of MBC for architectural applications. Next, we analyze some of the prominent architectural prototypes with MBC to exemplify the architectural potentials of MBC and uncover the constraints and affordances of this biomaterial when used in an architectural context. Finally, we review and synthesize the existing literature on MBC from different disciplines providing a guide for architects to cultivate and enhance the material properties of MBC for architectural goals.","PeriodicalId":51753,"journal":{"name":"Journal of Green Building","volume":"2 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87147727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

ENERGY PERFORMANCE OF BUILDINGS USING ELECTROCHROMIC SMART WINDOWS WITH DIFFERENT WINDOW-WALL RATIOS 使用不同窗墙比的电致变色智能窗户的建筑物的能源性能

IF 1.4 4区艺术学

Journal of Green Building Pub Date : 2022-01-01 DOI: 10.3992/1943-4618.17.1.3

W. Xing, Jianli Hao, Wenting Ma, G. Gong, A. Nizami, Yu Song

{"title":"ENERGY PERFORMANCE OF BUILDINGS USING ELECTROCHROMIC SMART WINDOWS WITH DIFFERENT WINDOW-WALL RATIOS","authors":"W. Xing, Jianli Hao, Wenting Ma, G. Gong, A. Nizami, Yu Song","doi":"10.3992/1943-4618.17.1.3","DOIUrl":"https://doi.org/10.3992/1943-4618.17.1.3","url":null,"abstract":"\u0000 The electrochromic (EC) smart window is a promising intelligent technology for improving the energy performance of a building. When applying a new glazing material, the window-wall ratio (WWR) is regarded as a significant factor related to daylight and building energy losses. However, there have not been any studies examining the relationship between the efficiency of the EC smart window and the WWR. The aim of this study is to provide strategies for mitigating energy losses and environmental impacts from window elements in an office building. It focuses on optimizing the WWR of EC smart windows to increase building energy efficiency. Double EC, low-emissivity (low-E), and clear glazing materials are simulated combined with five WWRs from 0% to 80% with an interval of 20%, four window orientations, and humid subtropical and Mediterranean climates. The results show that a 40% WWR in a southern-facing building façade using a humid subtropical climate setting provides the optimum energy performance of EC glazing among all the configurations tested. Since it was also found that EC glazing reduces the cooling load, it is more suitable for climate conditions characterized by a hotter temperature with greater solar irradiation. Future research should consider the impact of WWR when balancing thermal, lighting and ventilation requirements, and the properties of EC glazing.","PeriodicalId":51753,"journal":{"name":"Journal of Green Building","volume":"13 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82392952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

INTRODUCTION OF NEW DAYLIGHTING METRICS FOR HEALTH, WELLBEING, AND FEASIBILITY: A STUDY OF THE INDOOR BUILDING ENVIRONMENT 为健康、福祉和可行性引入新的采光指标:室内建筑环境研究

IF 1.4 4区艺术学

Journal of Green Building Pub Date : 2022-01-01 DOI: 10.3992/1943-4618.17.1.105

Jaewook Lee, M. Boubekri

{"title":"INTRODUCTION OF NEW DAYLIGHTING METRICS FOR HEALTH, WELLBEING, AND FEASIBILITY: A STUDY OF THE INDOOR BUILDING ENVIRONMENT","authors":"Jaewook Lee, M. Boubekri","doi":"10.3992/1943-4618.17.1.105","DOIUrl":"https://doi.org/10.3992/1943-4618.17.1.105","url":null,"abstract":"\u0000 This study investigates the applicability of a new daylighting metric based on human health, an emerging framework for evaluating the effect of daylight on building occupants. Procedures based on modeling annual daylight availability are used to determine the mapping of daylight distribution on a daily, seasonal, and yearly basis. Literature review and experimental studies were performed to propose the new day-lighting metrics for health and wellbeing. The proposed metrics have two broad criteria, including daylighting level, timing, and duration. The two details are as follows: (1) 400 lux for 5 hours (2K lux·h) in the daytime; and (2) 500 lux for 1 hour (0.5K lux·h) in the early morning, 8AM–9AM. To verify the applicability of the proposed daylighting metrics to current buildings, sample buildings were selected and daily, spatial and seasonal differences were simulated through computer visualization techniques. Moreover, we evaluated the application of the daylighting metric on the building layout and compared the new daylighting metric for health and wellbeing with conventional daylighting metrics.","PeriodicalId":51753,"journal":{"name":"Journal of Green Building","volume":"5 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90553869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

AN EMPIRICAL STUDY OF STUDENTS’ AIR CONDITIONING ENERGY USE BEHAVIOR IN UNIVERSITY DORMITORIES—A CASE OF NANJING, CHINA 高校学生宿舍空调能耗行为实证研究——以南京市为例

IF 1.4 4区艺术学

Journal of Green Building Pub Date : 2022-01-01 DOI: 10.3992/1943-4618.17.1.169

Lingling Tian, Lilin Xiong, Hui Liu, Pengjuan Mao, Hongyang Li, Z. Dai

{"title":"AN EMPIRICAL STUDY OF STUDENTS’ AIR CONDITIONING ENERGY USE BEHAVIOR IN UNIVERSITY DORMITORIES—A CASE OF NANJING, CHINA","authors":"Lingling Tian, Lilin Xiong, Hui Liu, Pengjuan Mao, Hongyang Li, Z. Dai","doi":"10.3992/1943-4618.17.1.169","DOIUrl":"https://doi.org/10.3992/1943-4618.17.1.169","url":null,"abstract":"People’s lifestyle and energy use behavior have been shown to influence the energy consumption of buildings. Since university dormitories consume a significant amount of energy, it is important to investigate the energy use behavior of students in such dormitories. The aim of this study was therefore to improve students’ energy use behavior in order to reduce the energy consumption of air conditioning in university dormitories. Based on a review of relevant literature, air conditioning energy use behavior was defined, and influencing factors were identified from demographic characteristics, indoor characteristics of personnel, as well as physiological and psychological factors. Students’ air conditioning energy use behavior during the summer and influencing factors of students’ energy use behavior was then revealed by an analysis of 332 respondents to a questionnaire survey. The results indicated that differences in energy use behavior are influenced by: age, major and monthly living expense of students; indoor characteristics such as the number of students in the dormitory, time spent in the dormitory, distance to an air conditioning unit; physiological factors including body comfort, clothing, and activity intensity; and psychological factors including cognition degree, values, living habits, attitude, perceived behavior control, and subjective norms. Based on these findings, suggestions for reducing energy consumed by air conditioning were proposed and intervention studies then conducted to confirm that energy use behavior had improved, with subsequent consumption savings after the intervention. This study adds to the body of knowledge in the field of energy use behavior and provides guidance for the sustainable development of green universities.","PeriodicalId":51753,"journal":{"name":"Journal of Green Building","volume":"121 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84902397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

EVALUATION OF DAYLIGHT PROVISION AND DAYLIGHT GLARE PROBABILITY FOR DIVERSE WORKSPACE CONFIGURATIONS 不同工作空间配置的日光供应和日光眩光概率评估

IF 1.4 4区艺术学

Journal of Green Building Pub Date : 2022-01-01 DOI: 10.3992/1943-4618.17.1.199

F. Yılmaz

引用次数: 0

EVALUATION OF POLICIES ON THE DEVELOPMENT OF PREFABRICATED CONSTRUCTION IN CHINA: AN IMPORTANCE-PERFORMANCE ANALYSIS 中国装配式建筑发展政策评价:一个重要性-绩效分析

IF 1.4 4区艺术学

Journal of Green Building Pub Date : 2022-01-01 DOI: 10.3992/jgb.17.1.147

Xiaolong Gan, Lanchi Liu, Tao Wen

{"title":"EVALUATION OF POLICIES ON THE DEVELOPMENT OF PREFABRICATED CONSTRUCTION IN CHINA: AN IMPORTANCE-PERFORMANCE ANALYSIS","authors":"Xiaolong Gan, Lanchi Liu, Tao Wen","doi":"10.3992/jgb.17.1.147","DOIUrl":"https://doi.org/10.3992/jgb.17.1.147","url":null,"abstract":"\u0000 Prefabricated construction (PC) has been regarded as a critical approach to address the challenges confronted by the construction industry in achieving sustainable development. Despite the Chinese government having issued various policies to promote the development of PC, this field remains in its infancy, thus suggesting an unsatisfactory policy system. Few studies have been conducted on the policy evaluation of target stakeholders who are closely related to the policy goal. To fill this knowledge gap, this study innovatively adopts importance-performance analysis to evaluate the policies on PC development with reference to the policy framework, including environmental, demand, and supply instruments. First, the explicit importance and perceived performance levels of policy instruments were investigated through a questionnaire survey conducted in Chongqing, China. Gap analysis indicated that all these policy instruments failed to meet the demand of target stakeholders. The implicit importance of policy instruments was obtained by using partial correlation analysis. Grid analysis revealed that the policy instruments can be divided into basic, key, excitement, and secondary factors, and finally, the most crucial areas of policy improvement were determined. The results of this study indicate different policy instruments were perceived with different importance in improving the policy system of PC development, and stakeholders showed heterogeneous needs of policy instruments of PC development. Generally, all the policy instruments were perceived as negative, and more attention should be paid to the policy instruments of infrastructure construction, technical development, talent support, economic incentives, public services, and guide information. This study confirmed the applicability of importance-performance analysis in policy evaluation and provided new insights into effectively improving the efficacy of policy system in promoting the development of PC.","PeriodicalId":51753,"journal":{"name":"Journal of Green Building","volume":"7 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83204138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

RESPONSIVE KINETIC FAÇADE STRATEGY AND DETERMINATION OF THE EFFECT ON SOLAR HEAT GAIN USING PARAMETRIC BIM-BASED ENERGY SIMULATION 响应动力学faÇade策略及基于参数bim的能量模拟对太阳热增益影响的确定

IF 1.4 4区艺术学

Journal of Green Building Pub Date : 2022-01-01 DOI: 10.3992/1943-4618.17.1.71

Fadi Salah, Merve Tuna Kayili

引用次数: 0