An Investigation on Benefit-Cost Analysis of Greenhouse Structures in Antalya

Significant population increase across the world, loss of cultivable land and increasing demand for food put pressure on agriculture. To meet the demand, greenhouses are built, which are, light structures with transparent cladding material in order to provide controlled microclimatic environment proper for plant production. Conceptually, greenhouses are similar with manufacturing buildings where a controlled environment for manufacturing and production have been provided and proper spaces for standardized production processes have been enabled. Parallel with the trends in the world, particularly in southern regions, greenhouse structures have been increasingly constructed and operated in Turkey. A significant number of greenhouses are located at Antalya. The satellite images demonstrated that for over last three decades, there has been a continuous invasion of greenhouses on all cultivable land. There are various researches and attempts for the improvement of greenhouse design and for increasing food production by decreasing required energy consumption. However, the majority of greenhouses in Turkey are very rudimentary structures where capital required for investment is low, but maintenance requirements are high when compared with new generation greenhouse structures. In this research paper, life-long capital requirements for construction and operation of greenhouse buildings in Antalya has been investigated by using benefit-cost analysis study

Knowledge Capturing in Design Briefing Process for Requirement Elicitation and Validation

Knowledge capturing and reusing are major processes of knowledge management that deal with the elicitation of valuable knowledge via some techniques and methods for use in actual and further studies, projects, services, or products. The construction industry, as well, adopts and uses some of these concepts to improve various construction processes and stages. From pre-design to building delivery knowledge management principles and briefing frameworks have been implemented across project stakeholders: client, design teams, construction teams, consultants, and facility management teams. At pre-design and design stages, understanding the client’s needs and users’ knowledge are crucial for identifying and articulating the expected requirements and objectives. Due to underperforming results and missed goals and objectives, many projects finish with highly dissatisfied clients and loss of contracts for some organizations. Knowledge capturing has beneficial effects via its principles and methods on requirement elicitation and validation at the briefing stage between user, client and designer. This paper presents the importance and usage of knowledge capturing and reusing in briefing process at pre-design and design stages especially the involvement of client and user, and explores the techniques and technologies that are usable in briefing process for requirement elicitation

Lean Design Management – An Evaluation Of Waste Items For Architectural Design Process

Inefficiency stands as a major problem in construction industry. Lean thinking is a relatively new process improvement philosophy which approaches inefficiency by reducing the waste. Although the inefficiency of design stages has been associated with the poor results of construction projects, less attention has been paid on the relationship between lean thinking and architectural design process. While there is a strong potential for improvement in the design processes via application of lean thinking, an analysis of waste items has never been done. Thus, this study aims to identify, categorize, and rank the waste items in architectural design sector. In the first stage of the study 28 design waste items were identified and classified under 8 lean production waste categories as a result of semi-structured interviews conducted with senior architects performing in Ankara, Turkey. In the second stage, a questionnaire was executed over a larger population of architects to examine the "frequency of occurrence", "impact over cost", "impact over duration", and "impact over quality" for each design waste item. The findings were statistically analysed and an evaluation of risk was completed. The statistical analysis of the questionnaires shows that there is a shared understanding of impacts of waste items over architectural design processes, with strong statistical evidence over their validity. The results of the study can be utilized for the strategical implementation of lean production philosophy in architectural design process

Transformation of the Interface: Future of Human-Building Interactions

Binalar, dünyadaki toplam enerji kullanımının yaklaşık %40'ından sorumludur ve bu oran, araştırmacıları yapı sistemlerinin işletilmesi ve kullanılması için yeni yollar üzerinde çalışmaya iten ciddi çevresel kaygılara yol açmaktadır. Akıllı binaların birçok yenilikçi özelliğe sahip son teknoloji ürünleriyle donatılı olacağı değerlendirildiğinde, akıllı binaların insanlarla arasındaki etkileşimlerin geleneksel binalardan farklı olacağı öngörülmektedir. Uzun yıllar boyunca, basit mantık ve fiziksel ara yüzleriyle kullanıcıya karşı neredeyse tamamen şeffaf olan temel bina bileşenleri, bina sakinlerine sıcaklık, aydınlatma ve hava kalitesi dâhil olmak üzere iç mekân çevre koşullarını düzenlemek için gelişmiş fırsatlar sağlamıştır. Bununla birlikte, binaların yakın gelecekte alandaki gelişmelerle birlikte daha fazla otomasyon, akıllı uygulamalar ve yapay zekâyı bünyesine katması beklendiğinden, geleneksel bina ile etkileşim modalitelerinin değişime tabi olacağı ve insanların yapılarla etkileşiminde radikal bir geçiş olacağı öngörülmektedir. Bu araştırma insan-bina etkileşimlerindeki mevcut durumu incelemeyi ve bu alandaki gelişmelere atıfta bulunarak gelecekteki olası değişimlerin ana hatlarını belirlemeyi amaçlamaktadır.Buildings are responsible for about 40% of total energy use in the world, and this rate leads to serious environmental concerns that have triggered researchers to work on new ways of operating and utilizing built environments. As future built environments are supposed to be equipped with the latest technologies with many innovative features, the interactions between occupants and buildings are expected to be different in intelligent buildings from that of conventional ones. For many years, primitive building components that are almost entirely transparent with their simple logic and physical interfaces provided occupants sophisticated opportunities to regulate indoor environmental conditions, including temperature, lighting, and air quality. However, as buildings are expected to incorporate more automated services, intelligent applications, and artificial intelligence in the near future along with the improvements in the field, it is foreseen that conventional touch-input modalities will be subjected to change and there will be a radical transition in the way people interact with the built environment. This research aims to review the current condition in human-building interactions and outlines the probable upcoming changes by referring to the advancements in the field

Compliance of standard forms of construction contracts and protocols with BIM-adopted construction sector in USA and UK

International Project and Construction Management Conference (IPCMC) (5. : 2018 : Girne, Cyprus)After increase in efforts in science and technology during the 20th century, cultural memory that a nation or civilization take benefits on daily practices solidified as civil institutions and get started a standard way of agreements in between project participants. There are two initial implications and thus two different approaches of standard contracts published in USA and UK by American Institutes of Architects (AIA) and Institution of Civil Engineers (ICE). Architecture, Engineering and Construction (AEC) industry widely take benefits from these standard versions of contracts. These efforts are supported by some technological solutions at late of 20th century by involvement of digital design and drafting tools and internet. Later, these solutions are provided by development and introduction of Building Information Modelling (BIM) to AEC industry, which is totally in conflict with traditional contract bodies. On the other hand, although BIM provide various benefits and try to integrate all disciplines and project participants in a project life-cycle, there is still differences in standard way of contracts and contract addendums in published BIM protocols in USA and UK. In this study, it is aimed to uncover compliance of these released contracts and protocols with AEC industry needs.No sponso

Utilisation of Decision Support Systems in Construction Management: A Literature Survey

Today, computers are widely used in all industries for data collection and analysis, interpretation of data and decision making processes. Especially Decision Support Systems, which are computer-based Information Systems providing tools for assisting managers in making semi-structured decisions, have gained stronger ground parallel to the latest developments in information technologies including artificial intelligence applications like fuzzy logic, machine learning, natural language processing, etc. There are on-going efforts to produce effective models, frameworks, and algorithms for decision making processes. However, construction industry has an intense volume of semi-structured or unstructured knowledge, and knowledge is mostly transferred as experiences from one project to another. This paper aims to find out how decisions are made in practice and how effective Decision Support Systems are in the construction industry

An investigation of comparison and evaluation of official BIM documents released in the USA, UK and Turkey

Architecture, engineering and construction (AEC) industry is in the midst of BIM transition across the world. In parallel, Turkish architecture and engineering firms are also experiencing such BIM transition. Regarding the sector wide change in the world; governments release standards, regulations and best practice guides to support not only the governmental institutions but also private sector firms on BIM transition. The United States of America (USA) and United Kingdom (UK) are two countries providing a continuous stream of official documents to support BIM transition with respect to the country perspectives, however; there are no such official documents released in Turkey yet. Therefore, current BIM practices executed in Turkey are in compliance with existing architectural and engineering practice documents in Turkey, which are dated and insufficient. This situation brings a question for the authors of this research that what kind of regulative shortcomings and deficiencies exist in BIM transition practices of Turkish architectural and engineering firms when compared with counterparts in USA and UK. The research question is tried to be answered by comparing and evaluating official BIM documents released in the USA and UK with Turkish architectural and engineering service specification document by using key BIM terms collected from best practice guides released in USA and UK. The selected key BIM terms are addressing potential legal issues in a BIM practice that in case of being not referenced, it is likely to be confront with claims and conflicts among project participants. The overall study has significant potentials on addressing not only common shortcomings of BIM implementation but also discovery of regulative gaps and challenging issues for the BIM implementation practices in Turkish AEC industry practitioners.No sponso