scholarly journals Construction work cost and duration analysis with the use of agent-based modelling and simulation

2021 ◽  
Vol 11 (1) ◽  
pp. 830-844
Author(s):  
Grzegorz Śladowski ◽  
Bartłomiej Sroka
Keyword(s):  
Construction Work ◽  
Dynamic Interactions ◽  
Bottom Up ◽  
Agent Based ◽  
Project Assessment ◽  
Heritage Site ◽  
And Performance ◽  
Basic Level ◽  
Construction Works

Abstract Assuming a systemic approach, a construction project can be treated as a complex system composed of many different interlinked elements such as construction works, human agents, equipment, materials and the knowledge needed to perform the said work. The system’s structure can be divided into many mutually connected precision levels. This multilevel decomposition of the system facilitates a bottom-up approach in assessing the performance of a planned project, while starting the analysis at its lowest aggregation levels. The basic level distinguishes three typical units and their attributes: persons, knowledge and construction resources. Unit attributes and their dynamic interactions under changing environmental conditions affect the properties and performance of a given construction work and, as a consequence, the properties and performance of the project. The objective of this article is to analyse the attributes and micro-behaviours of units through bottom-up project assessment, allowing the estimation of its parameters such as completion time and cost. We utilised multiagent modelling that allows for performing micro-simulations in complex systems with adaptive components. The analysis was backed by a case study of road renovation work performed under specific conditions on the grounds of a listed heritage site.

scholarly journals Tasks and Problems in the Buildings Demolition Works: A Case Study

2015 ◽  
Vol 61 (4) ◽  
pp. 3-18 ◽  
Author(s):  
A. Sobotka ◽  
A. Radziejowska ◽  
J. Czaja
Keyword(s):  
Construction Projects ◽  
Technical Condition ◽  
The Other ◽  
Construction Work ◽  
Preparatory Phase ◽  
Construction Law ◽  
Implementation Problems ◽  
Building Demolition ◽  
Construction Works

In Poland, it often happens that construction objects are subject to demolition work for different reasons. Demolition, according the Construction Law, is defined as a type of construction works and, as such, represents a particular type of construction project. As in other construction projects, a very important phase, in addition to execution of the works, is to prepare, design and plan demolition works. Some demolition activities are covered by appropriate regulations and can be described as typical. On the other hand the technical side of demolition works depends on many factors such as: the type of building, its age, technical condition, type of construction, etc. This article covers the analysis of the stages and tasks in the preparatory phase of the building demolition. This work will also present a description of the tasks carried out during the demolition works based on the example of a historic tenement house located in Krakow. This analysis aims to identify implementation problems and sources of risk that may occur during this type of construction work.

scholarly journals Design errors and performance defects as causes of the risk for a collapse of the ceiling of the concert hall

2019 ◽  
Author(s):  
Ryszard Chmielewski ◽  
Leopold Kruszka
Keyword(s):  
Detailed Analysis ◽  
Technical Diagnostics ◽  
Wood Block ◽  
Concert Hall ◽  
Historic Building ◽  
Stone Slab ◽  
Design Documents ◽  
And Performance ◽  
Construction Works

The issue presented concerns the proper assessment of a ceiling underneath a modernised concert hall in a historic building as a case study. The reason for a reconstruction was to replace a wood block floor with stone slab floor made of marble. Shortly after the construction works, cracks which appeared, made the floor unsuitable for further use. In order to determine the cause of the damage, a detailed analysis of a state of the construction was performed within the technical diagnostics. The first element that was inspected was the way the cracks were distributed. This layout was typical for overloading of ceiling. It was assumed that the thickness of the concrete overlay of the Ackerman floor was 9 cm. In order to verify the actual layout of the floor layers, five different opencast works were taken from the top level of the floor cavity blocks. The actual layout of the uncovered parts differed from both the assumptions that were made and the new design. The arrangement of the floor layers that differed from the design documents, caused the overloading of the supporting structure of the Ackerman floor. Additionally, an incorrect design assumption has overlapped.

Theoretizing A New Sustainable Business Event: Extension of Mair and Jago Model

2015 ◽  
Vol 3 (2) ◽  
pp. 55
Author(s):  
Norol Hamiza Zamzuri ◽  
Khairil Wahidin Awang ◽  
Yuhanis Abdul Aziz ◽  
Zaiton Samdin
Keyword(s):  
Social Impact ◽  
Geographical Area ◽  
Infrastructure Development ◽  
Structured Interviews ◽  
Sustainable Business ◽  
Knowledge Resources ◽  
Business Events ◽  
And Performance ◽  
Event Based

The growth of the event sector is underpinned by the demand of organizing a business event.  Thus, it leads to an increase in economic and social impact. However, the problems from the growth of this sector potentially results from the use of several event materials, transportation and infrastructure development.  Organizing a green event is seen as one of the strategies to reduce the environmental impact.  Therefore, the aim of this paper is to explore the issues involved throughout the process of greening an event by applying Mair and Jago Model.  Semi-structured interviews were conducted with event managers from six Malaysia business event companies that encourage green practices during their event.  Findings suggest that impact, initiative, support and performance motivates event organizers in organizing a green event.  It has also been found that knowledge, resources and behaviour are the barriers faced by event organizers throughout the process of organizing a green event.  Based on the findings it appears that two important factors have emerged from the data collection and analysis that showed a deviation from the Mair and Jago Model, namely “impact” for the motivation element and “support” for the barrier element.  The main limitation of this study was the scope of the study; as it only focuses on business events.  However, as the main purpose of this study is to explore the issues of organizing a green event, it has been found that there are other issues need to be explored in other contexts and geographical area.  Apart from this, as this is a case study, it can only replicate according to the circumstances of this case study. However, this study can be generalized in terms of the theory that has emerged from it.  It is suggested that further research should explore more issues in other contexts and geographical areas. 

ICT-ENABLED BOTTOM-UP ARCHITECTURAL DESIGN

2016 ◽  
Vol 10 (1) ◽  
pp. 26 ◽  
Author(s):  
Burak Pak
Keyword(s):  
Information And Communication Technologies ◽  
Design Education ◽  
Architectural Design ◽  
Communication Technologies ◽  
Self Organization ◽  
Literature Study ◽  
Bottom Up ◽  
Information And Communication ◽  
Ict Tools

This paper aims at discussing the potentials of bottom-up design practices in relation to the latest developments in Information and Communication Technologies (ICT) by making an in-depth review of inaugural cases. The first part of the study involves a literature study and the elaboration of basic strategies from the case study. The second part reframes the existing ICT tools and strategies and elaborates on their potentials to support the modes of participation performed in these cases. As a result, by distilling the created knowledge, the study reveals the potentials of novel modes of ICT-enabled design participation which exploit a set of collective action tools to support sustainable ways of self-organization and bottom-up design. The final part explains the relevance of these with solid examples and presents a hypothetical case for future implementation. The paper concludes with a brief reflection on the implications of the findings for the future of architectural design education.

CONTEXTUALIZING PALIMPSEST OF COLLECTIVE MEMORY IN AN URBAN HERITAGE SITE: Case Study of Chahar Bagh, Shiraz - Iran

2015 ◽  
Vol 9 (1) ◽  
pp. 218 ◽  
Author(s):  
Leila Mahmoudi Farahani ◽  
Marzieh Setayesh ◽  
Leila Shokrollahi
Keyword(s):  
Collective Memory ◽  
Active Part ◽  
Collective Memories ◽  
Cultural Life ◽  
Urban Heritage ◽  
Heritage Site ◽  
Historical Sites ◽  
A Site ◽  
Historical Centre

A landscape or site, which has been inhabited for long, consists of layers of history. This history is sometimes reserved in forms of small physical remnants, monuments, memorials, names or collective memories of destruction and reconstruction. In this sense, a site/landscape can be presumed as what Derrida refers to as a “palimpsest”. A palimpsest whose character is identified in a duality between the existing layers of meaning accumulated through time, and the act of erasing them to make room for the new to appear. In this study, the spatial collective memory of the Chahar Bagh site which is located in the historical centre of Shiraz will be investigated as a contextualized palimpsest, with various projects adjacent one another; each conceptualized and constructed within various historical settings; while the site as a heritage is still an active part of the city’s cultural life. Through analysing the different layers of meaning corresponding to these adjacent projects, a number of principals for reading the complexities of similar historical sites can be driven.

The Role of New Media in Facilitating Entrepreneurship in Tourism - Case Study: Promoting Komodo Island in East Nusa Tenggara

2010 ◽  
Vol 2 (2) ◽  
pp. 63-72
Author(s):  
Dessy Kania
Keyword(s):  
New Media ◽  
Tourism Industry ◽  
World Heritage Site ◽  
Foreign Visitor ◽  
Printed Media ◽  
Heritage Site ◽  
High Inflation ◽  
Tourism Destinations

Tourism is an important component of the Indonesian economy as well as a significant source of the country’s foreign exchange revenues. According to the Center of Data and Information - Ministry of Culture and Tourism, the growth of foreign visitor arrivals to Indonesia has increased rapidly by 9.61 percent since 2010 to the present. One of the most potential tourism destinations is Komodo Island located in East Nusa Tenggara. With the island’s unique qualities, which include the habitat of the Komodo dragons and beautiful and exotic marine life, it is likely to be one of the promising tourism destinations in Indonesia and in the world. In 1986, the island has been declared as a World Heritage Site by UNESCO. The Ministry of Culture and Tourism continuously promotes many of the country’s natural potential in tourism through various media: printed media, television and especially new media. However, there are challenges for the Indonesian tourism industry in facilitating entrepreneurship skills among the local people in East Nusa Tenggara. According to the Central Bureau of Statistics (2011), East Nusa Tenggara is considered as one of the poorest provinces in Indonesia where the economy is lower than the average, with a high inflation of 15%, and unemployment of 30%. This research is needed to explore further the phenomenon behind the above facts, aiming at examining the role of new media in facilitating entrepreneurship in the tourism industry in Komodo Island. The results of this study are expected to provide insights that can help local tourism in East Nusa Tenggara. Keywords: Tourism, Entrepreneurship, New Media

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