An appraisal of the maintenance management practices of high rise residential buildings in Nigeria

2019 ◽  
Keyword(s):  
Management Practices ◽  
Residential Buildings ◽  
Maintenance Management ◽  
High Rise

Implementation of BIM technology for knowledge transfer in IBS building maintenance projects

2018 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Zul-Atfi Ismail
Keyword(s):  
Knowledge Transfer ◽  
Management Practices ◽  
Maintenance Management ◽  
Structural Defects ◽  
Automation System ◽  
Prototype System ◽  
Conventional System ◽  
Content Type ◽  
High Rise ◽  
Building Maintenance

Purpose The current maintenance management method affects the efficiency of the complex, high-rise industrialised building system (IBS) building maintenance management projects in Malaysia. The usage of a conventional system (paper-based reports/unsystematic database) has various drawbacks, such as IBS component aesthetic and structural defects which occur repeatedly in the building and maintenance of conventional building, lack of integration between maintenance systems and lack of the intelligent capabilities of linking defect diagnosis operations in maintenance affecting various building elements with IBS component defect knowledge. Thus, the purpose of this paper is to focus on the development of a mechanism to improve IBS component defect knowledge transfer in IBS building maintenance projects through the integration of building information modelling (BIM). Design/methodology/approach Eight clients/maintenance contractors were selected based on the major problems of using a conventional system to investigate the maintenance management practices in each complex and high-rise IBS building. Findings The findings indicated that several computerised systems such as Building Automation System and Supervisory Control and Data Acquisition System are used by a client/maintenance contractor. Moreover, BIM technology awareness was found to be limited, with no implementation in IBS building maintenance till now. The results of this case study were used as a foundation for the development of a prototype system using Computerised Maintenance Management System, Expert System and BIM. Originality/value The development of this new system improves IBS component diagnosis knowledge integration with the BIM technology.

How BIM systems affect maintaining IBS building

Facilities ◽  
2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Zul-Atfi Ismail
Keyword(s):  
Conventional Method ◽  
Management Practices ◽  
Maintenance Management ◽  
Prototype System ◽  
Calculation Error ◽  
Design Calculation ◽  
Building Structure ◽  
Content Type ◽  
High Rise ◽  
Defect Diagnosis

Purpose The purpose of this paper is to discuss the system approaches and their application for managing IBS building in the context of Malaysian maintenance practice. Currently, the maintenance management method has affected the efficiency of the complex and high-rise industrialised building system (IBS) building maintenance management in Malaysia. Many issues such as poor service delivery, limited budgets, less competent staff and defect repetition emerged because of the usage of conventional method applications (paper-based form). The data revealed that the practice of maintenance management for complex and high-rise IBS buildings needs to be digitalised. Design/methodology/approach This qualitative research was carried out by conducting literature review and semi-structured interviews. Eight major maintenance organisations were selected based on a conventional method of practice in managing maintenance for complex and high-rise IBS buildings. The computerised system was developed using a data flow diagram and coding. Subsequently, the prototype system was tested. Findings By having this prototype system, the defect diagnosis and decision-making process become easier, faster and cost-effective in facilitating the maintenance assessment, defect diagnosis and control in relation to IBS building structure components. Originality/value In conclusion, the prototype system may improve the effectiveness of maintenance management practices for IBS building structure components in reducing defect design risks such as design calculation error to provide high-quality IBS building structure components for a safe and healthy environment.

Assessing the effect of night ventilation on PCM performance in high-rise residential buildings

2019 ◽  
Vol 43 (3) ◽  
pp. 229-249 ◽  
Author(s):  
Shahrzad Soudian ◽  
Umberto Berardi
Keyword(s):  
Thermal Energy ◽  
Phase Change Materials ◽  
Positive Impact ◽  
Residential Buildings ◽  
Solidification Rate ◽  
Operative Temperature ◽  
High Rise ◽  
Ventilation Strategies ◽  
Night Ventilation ◽  
The Impact

This article investigates the possibility to enhance the use of latent heat thermal energy storage (LHTES) as an energy retrofit measure by night ventilation strategies. For this scope, phase change materials (PCMs) are integrated into wall and ceiling surfaces of high-rise residential buildings with highly glazed facades that experience high indoor diurnal temperatures. In particular, this article investigates the effect of night ventilation on the performance of the PCMs, namely, the daily discharge of the thermal energy stored by PCMs. Following previous experimental tests that have shown the efficacy of LHTES in temperate climates, a system comprising two PCM layers with melting temperatures selected for a year-around LHTES was considered. To quantify the effectiveness of different night ventilation strategies to enhance the potential of this composite PCM system, simulations in EnergyPlusTM were performed. The ventilation flow rate, set point temperature, and operation period were the main tested parameters. The performance of the PCMs in relation to the variables was evaluated based on indoor operative temperature and cooling energy use variations in Toronto and New York in the summer. The solidification of the PCMs was analyzed based on the amount of night ventilation needed in each climate condition. The results quantify the positive impact of combining PCMs with night ventilation on cooling energy reductions and operative temperature regulation of the following days. In particular, the results indicate higher benefits obtainable with PCMs coupled with night ventilation in the context of Toronto, since this city experiences higher daily temperature fluctuations. The impact of night ventilation design variables on the solidification rate of the PCMs varied based on each parameter leading to different compromises based on the PCM and climate characteristics.

scholarly journals Sensitivity and Uncertainty Analyses of Human and Organizational Risks in Fire Safety Systems for High-Rise Residential Buildings with Probabilistic T-H-O-Risk Methodology

2021 ◽  
Vol 11 (6) ◽  
pp. 2590
Author(s):  
Samson Tan ◽  
Darryl Weinert ◽  
Paul Joseph ◽  
Khalid Moinuddin
Keyword(s):  
Fire Safety ◽  
Residential Buildings ◽  
Fire Risk ◽  
Regulatory Regime ◽  
High Rise ◽  
Fire Engineering ◽  
Verification Methods ◽  
Uncertainty Analyses ◽  
Risk Methodology ◽  
Probabilistic Risk

Given that existing fire risk models often ignore human and organizational errors (HOEs) ultimately leading to underestimation of risks by as much as 80%, this study employs a technical-human-organizational risk (T-H-O-Risk) methodology to address knowledge gaps in current state-of-the-art probabilistic risk analysis (PRA) for high-rise residential buildings with the following goals: (1) Develop an improved PRA methodology to address concerns that deterministic, fire engineering approaches significantly underestimate safety levels that lead to inaccurate fire safety levels. (2) Enhance existing fire safety verification methods by incorporating probabilistic risk approach and HOEs for (i) a more inclusive view of risk, and (ii) to overcome the deterministic nature of current verification methods. (3) Perform comprehensive sensitivity and uncertainty analyses to address uncertainties in numerical estimates used in fault tree/event trees, Bayesian network and system dynamics and their propagation in a probabilistic model. (4) Quantification of human and organizational risks for high-rise residential buildings which contributes towards a policy agenda in the direction of a sustainable, risk-based regulatory regime. This research contributes to the development of the next-generation building codes and risk assessment methodologies.

Experimental assessment of the shear strength of an asymmetric steel composite beam with web openings

2005 ◽  
Vol 32 (2) ◽  
pp. 314-328 ◽  
Author(s):  
Young K Ju ◽  
Do-Hyun Kim ◽  
Sang-Dae Kim
Keyword(s):  
Shear Strength ◽  
Composite Beam ◽  
Residential Buildings ◽  
Shear Capacity ◽  
Structural System ◽  
Web Openings ◽  
Wide Beam ◽  
High Rise ◽  
Beam Shear ◽  
Steel Composite

The number of high-rise buildings has greatly increased in Korea, and storey height is a significant component of tall residential buildings due to the limited city area. To reduce storey height, the wide beam has been adopted in some projects in Seoul such as Trump World, Galleria Palace, and Richencia. The joints between the wide beam and the core wall were too narrow to place the reinforcement, however. This paper investigates a newly developed structural system called the innovative, technical, economical, and convenient hybrid system (iTECH system). The iTECH system has an asymmetric steel assembly with web openings, where the top plate is welded on top of inverted structural "tees" whose cut is referred to as a "honeycomb" type. Both sides of the web and the slab are filled with cast-in-place concrete. The shear capacity was experimentally evaluated and verified, with parameters determined by factors that shared the shear strength of the iTECH beam. The steel web, inner concrete panel, and outer concrete panel contributed to the shear strength of the iTECH beam. The shear stirrup did not contribute much to the shear strength, however, and therefore a design equation using the steel web and inner concrete panel was suggested.Key words: composite beam, shear capacity, monotonic test, high-rise building.

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