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.

The impact of design and executive errors affecting the damage to the floor of the concert hall

2021 ◽  
Vol 2 (104) ◽  
pp. 49-56
Author(s):  
R. Chmielewski ◽  
A. Baryłka ◽  
J. Obolewicz
Keyword(s):  
Design Guidelines ◽  
Actual State ◽  
Original Design ◽  
Concert Hall ◽  
Design Documents ◽  
And Performance ◽  
The Impact ◽  
Bearing Structure ◽  
Structure Research ◽  
Construction Works

Purpose: The aim of the article is to demonstrate the influence of errors and performance errors that affect the damage to the concert hall floor. Design/methodology/approach: When the project was launched, cracks appeared which made the floor unsuitable for further use. In order to determine the cause of the damage, the team conducted a detailed structural health analysis. Findings: The documents used for the analysis included the submitted project records, as well as the actual state of the structure. Research limitations/implications: First, the design team checked the design records for the rooms used for statistical calculations. The arrangement of the floor layers, which was not in accordance with the original design documents, overloaded the load-bearing structure of the Ackerman ceiling. Practical implications: Engineers identified other flawed design guidelines that added to the damage. As a solution, the client followed one of the solutions proposed by the original renovation team. Originality/value: Before the commencement of construction works, an analysis of design solutions and executive assumptions is required, as they may affect the previously made elements of the building structure.

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 Bill of quantities and quantity survey of construction works of renovated buildings - case study

2019 ◽  
Vol 9 (1) ◽  
pp. 350-358
Author(s):  
Marzena Lendo-Siwicka ◽  
Katarzyna Pawluk ◽  
Arkadiusz Kowalczyk ◽  
Roman Trach
Keyword(s):  
Detailed Analysis ◽  
Good Practice ◽  
Technical Condition ◽  
Existing Building ◽  
The Poor ◽  
Bill Of Quantities ◽  
The Impact ◽  
Construction Works ◽  
Building Elements

AbstractThe article presents detailed analysis of the case of the renovation of one of historic tenement houses in Warsaw. Other, similar cases analyzed in less detail- were called verification cases. The aim of the article was, first of all, to present the scale of discrepancies between planned and performed amount of works and possibly precise indication of the reasons for these underestimations. The scope of the research included the inventory of the technical condition of selected building elements, the execution of bill of quantities, quantity survey and cost estimates of selected works. The conducted research shows that quantity survey of works subjected to analysis such as: repair of walls, chimneys and brick walls reached the value at least twice as large. The planned cost of works calculated on the basis of the event was exceeded approximately twice. This was mainly due to the fact that the impact of repair works on deterioration of the technical condition of existing building elements was not foreseen. The poor technical condition of elements that were covered was not foreseen either. On the basis of the case studied, universal observations about renovated facilities can be provided. First of all, it should be stated that a person who makes bill of quantities on such facilities should have executive experience on similar projects. Thus, a good practice would be a cooperation with a person experienced in the implementation of similar investments.

The Impact of Property Characteristics on Economic Performance of Russian Industrial Enterprises

2005 ◽  
pp. 53-68 ◽  
Author(s):  
R. Kapeliushnikov ◽  
N. Demina
Keyword(s):  
Detailed Analysis ◽  
Economic Performance ◽  
Ownership Concentration ◽  
Corporate Sector ◽  
Concentrated Ownership ◽  
Industrial Enterprises ◽  
Russian Industry ◽  
Control Premium ◽  
And Performance ◽  
The Impact

The paper provides new survey evidence on effects of concentrated ownership upon investment and performance in Russian industrial enterprises. Authors trace major changes in their ownership profile, assess pace of post-privatization redistribution of shareholdings and provide evidence on ownership concentration in the Russian industry. The major econometric findings are that the first largest shareholding is negatively associated with the firm’s investment and performance but surprisingly the second largest shareholding is positively associated with them. Moreover, these relationships do not depend on identity of majority shareholders. These results are consistent with the assumption that the entrenched controlling owners are engaged in extracting "control premium" but sizable shareholdings accumulated by other blockholders may put brakes on their expropriating behavior and thus be conductive for efficiency enhancing. The most interesting topic for further more detailed analysis is formation, stability and roles of coalitions of large blockholders in the corporate sector of post-socialist countries.

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. 

scholarly journals Methodology for Determining the Location of River Ports on a Modernized Waterway Based on Non-Cost Criteria: A Case Study of the Odra River Waterway

2021 ◽  
Vol 13 (6) ◽  
pp. 3571
Author(s):  
Bogusz Wiśnicki ◽  
Dorota Dybkowska-Stefek ◽  
Justyna Relisko-Rybak ◽  
Łukasz Kolanda
Keyword(s):  
Large Scale ◽  
Multicriteria Decision Making ◽  
Research Process ◽  
Optimal Selection ◽  
Investment Projects ◽  
Odra River ◽  
Research Problems ◽  
Selection Of ◽  
Construction Works

The paper responds to research problems related to the implementation of large-scale investment projects in waterways in Europe. As part of design and construction works, it is necessary to indicate river ports that play a major role within the European transport network as intermodal nodes. This entails a number of challenges, the cardinal one being the optimal selection of port locations, taking into account the new transport, economic, and geopolitical situation that will be brought about by modernized waterways. The aim of the paper was to present an original methodology for determining port locations for modernized waterways based on non-cost criteria, as an extended multicriteria decision-making method (MCDM) and employing GIS (Geographic Information System)-based tools for spatial analysis. The methodology was designed to be applicable to the varying conditions of a river’s hydroengineering structures (free-flowing river, canalized river, and canals) and adjustable to the requirements posed by intermodal supply chains. The method was applied to study the Odra River Waterway, which allowed the formulation of recommendations regarding the application of the method in the case of different river sections at every stage of the research process.

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