scholarly journals Performance-based selection of sustainable construction solutions for external walls

Author(s):  
S. Veludo ◽  
V. Rato
2019 ◽  
Vol 3 (1) ◽  
pp. 85 ◽  
Author(s):  
Koorosh Gharehbaghi ◽  
Maged Georgy

Whilst sustainable construction relates to both a building’s structure and the use of proper life cycle processes, the selection of the most appropriate material/s is deemed a considerable undertaking. Throughout a building’s lifecycle that extends from design, construction, operation, maintenance, renovation, until demolition, the selection of sustainable material/s is a particularly crucial task for the development and establishment of such structures. Traditionally, there are three main materials for general construction: (1) Steel, (2) Concrete and (3) Timber. These materials not only influence the function within the structure, but also affect the operation cost and energy usage. Operation cost reduction and energy savings are typically elements of the sustainable construction sphere. However, in developing countries, there is a variety of highly critical factors, which can impact material selection as well as the long-term sustainability of the structure, including: Fire Performance, Environmental Impact, Structural Performance (strength and durability), and Functioning Capabilities. Accordingly, this paper will first compare the sustainability of these three key materials and then converse with appropriate processes for material selection. Attention will be given to the sustainable construction recompense associated with the different material selection factors. Doing so ensures a more sustainable built environment by means of an improved material selection process.


2014 ◽  
Vol 522-524 ◽  
pp. 1641-1644
Author(s):  
Chun Yan Yang ◽  
Shu Min

With rich experience of sustainable construction, Sichuan vernacular architectures are gradually formed in a long Construction period, during which the ancient adapt to natural environment and social conditioning. This thesis summarizes some ecological characteristics of Sichuan vernacular architectures and refines some sustainable characteristics of architectures construction. By using an empirical approach, the sustainable measures of vernacular architectures are preliminarily summarized. The sustainable experience concerning Sichuan vernacular architectures, such as layout, lightening, ventilation, dehumidification, damp-proof and materials selection of roof, are expected to bring some inspirations to modern community construction.


2021 ◽  
Vol 21 (3) ◽  
Author(s):  
Mughees Aslam ◽  
Zhili Gao ◽  
Gary Smith

Challenges exist across the three dimensions of construction sustainability (economic; social and environmental) due to low productivity, waste, safety, and environmental hazards attributed to existing construction management practices.  Lean construction (LC) has been widely accepted as a robust philosophy to enable sustainable construction (SC) practices. However, the existing literature is more inclined toward defining the integration between LC and sustainability through LC practices and techniques. Little research tackles the challenges of achieving sustainable goals within the current practices. Therefore, this paper aims to present a strategy that can help the construction industry overcome the challenges of SC in the traditional construction management practice by using LC. The challenges of SC are identified through a systematic literature review approach with metadata analysis. Compared with LC principles, tools and techniques, the strategy focused on identifying (1) the power and potential of LC principles and (2) the best LC practices/techniques that help in overcoming these SC challenges. The study results showed 20 out of 32 challenges identified can be overcome by using LC integrated with SC. Finally, a Lean Approaching Sustainability Tools (LAST) matrix is developed to provide guidelines to the construction stakeholders for the selection of LC practices/tools/techniques in overcoming the top 15 most important challenges.


Author(s):  
Ricardo Tendero-Caballero ◽  
Inmaculada Martínez-Pérez ◽  
Bárbara Serrano-Pérez ◽  
Gregorio García-López de la Osa

Author(s):  
Asli Gurgun ◽  
Mehmet Ozbek

The growing interest in sustainable design and construction introduces new set of risks specific to green building projects. One of the challenges in green building projects that require special consideration is the selection of the appropriate contractors to ensure that the targeted sustainability goals of the projects will be achieved. Rapid growth of green building movement requires that contractors that are willing to be active in sustainable construction learn green building rating systems, application processes, green products, and related laws and regulations. This study investigates major factors affecting the selection of contractors that will be responsible for the construction of projects aiming certification through green building certification systems. An extensive literature survey was completed to identify the significant factors in the selection process, which are important for the successful completion of the projects. It is found that experience in green building projects and certification system procedures, managerial approach, technical approach, price, past performance, and qualifications are important in the selection of contractors in green buildings.


2020 ◽  
Vol 0 (0) ◽  
Author(s):  
K. Schabowicz ◽  
Ł. Zawiślak

AbstractIncreasingly high demands on environmental protection are intensifying the development of sustainable construction. Ventilated facades can provide an energy-efficient alternative to standard facades, that is, external thermal insulation composite systems (ETICS). The article compares standard facades, which was a reference, to ventilated facades in two variants: closed joints and open joints. The comparison was made by means of numerical simulations of computational fluid dynamic (CFD), under conditions of high outside temperature and high sunshine. The results showed great benefits of using ventilated facades in such external climate conditions. It was also observed that the selection of the variant of ventilated facade in the system of close or open joints has minimal influence on thermal efficiency of the whole partition.


2021 ◽  
Vol 13 (18) ◽  
pp. 10438
Author(s):  
Seyed Morteza Hatefi ◽  
Hamideh Asadi ◽  
Gholamreza Shams ◽  
Jolanta Tamošaitienė ◽  
Zenonas Turskis

The construction industry is a vital part of the modern economic system. Construction work often has significant negative impacts on the environment and sustainable economic development, such as degradation of the environment, depletion of resources, and waste generation. Therefore, environmental concerns must be taken into account when evaluating and making decisions in the construction industry. In this regard, sustainable construction is considered as the best way to avoid resource depletion and address environmental concerns. Selection of sustainable building materials is an important strategy in sustainable construction that plays an important role in the design and construction phase of buildings. The assessment of experts is one of the most important steps in the material selection process, and their subjective judgment can lead to unpredictable uncertainty. The existing methods cannot effectively demonstrate and address uncertainty. This paper proposes an integrated Dempster-Shafer (DS) theory of evidence and the ARAS method for selecting sustainable materials under uncertainty. The Dempster-Shafer Evidence Theory is a relatively new and appropriate tool for substantiating decisions when information is nonspecific, ambiguous, or conflicting. The Additive Ratio Assessment (ARAS) method has many advantages to deal with MCDM problems with non-commensurable and even conflicting criteria and to obtain the priority of alternatives based on the utility function. The proposed method converts experts’ opinions into the basic probability assignments for real alternatives, which are suitable for DS evidence theory. It uses the ARAS method to obtain final estimation results. Finally, a real case study identifying the priority of using five possible alternative building materials demonstrates the usefulness of the proposed approach in addressing the challenges of sustainable construction. Four main criteria including economic, social, environmental, and technical criteria and 25 sub-criteria were considered for the selection of sustainable materials. The specific case study using the proposed method reveals that the weight of economic, socio-cultural, environmental, and technical criteria are equal to 0.327, 0.209, 0.241, and 0.221, respectively. Based on these results, economic and environmental criteria are determined as the most important criteria. The results of applying the proposed method reveal that aluminum siding with a final score of 0.538, clay brick with a score of 0.494, and stone façade with a final score of 0.482 are determined as the best alternatives in terms of sustainability.


2012 ◽  
Vol 174-177 ◽  
pp. 2102-2106 ◽  
Author(s):  
Mohamad Zin Abd. Majid ◽  
Ismail Mohd Affendi ◽  
Mohammed Taher Alashwal ◽  
Suriani Hassin ◽  
Rozana Binti Zakaria

The formwork made up of Industrialized Building System is being acknowledged in many writings as a construction method that has many advantages especially on aspects of construction sustainability. This paper discusses the outcome of a research aimed in determining factors and elements that lead to selection of responsive formwork system. A list of sustainability elements in construction development is being summarized through several references. The development of questionnaire survey took place whereby it has been divided by three parts that are the demographic of respondents, the selection factors of formwork system and responsive level of sustainability objectives towards formwork system. The survey was conducted in several construction sites in Malaysia. The findings highlighted the sustainability elements for optimal Industrialized Building System (IBS) formwork system. This study encourages application of modern method to response to sustainable construction.


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