scholarly journals RECONSTRUCTION OF RESIDENTIAL BUILDINGS OF THE FIRST MASS SERIES WITH USE OF A HIGH-RISE SUPERSTRUCTURE OF STEEL

2021 ◽  
pp. 108-122
Author(s):  
V.T. Shalenny ◽  
S.F. Akimov ◽  
V.D. Malahov
Keyword(s):  
Experimental Research ◽  
Residential Buildings ◽  
Bearing Steel ◽  
Steel Frame ◽  
Load Bearing ◽  
High Rise ◽  
Economic Justification ◽  
Mass Development ◽  
The Cost

The article presents the results of theoretical and experimental research aimed at developing and improving structural and organizational and technological solutions in projects for the reconstruction of five-story residential buildings of mass development, developing and improving methods of economic justification, measures to reduce the cost of the two considered options, the comparison of which will increase the efficiency of this type of reconstruction using a load-bearing steel frame.

scholarly journals ANALYTICAL ASSESSMENT AND COMPARISON OF FACILITIES MANAGEMENT SERVICES FOR RESIDENTIAL ESTATES

2012 ◽  
Vol 16 (3) ◽  
pp. 236-253 ◽  
Author(s):  
Joseph H. K. Lai
Keyword(s):  
Cost Effectiveness ◽  
Residential Buildings ◽  
Evaluation Model ◽  
Facilities Management ◽  
Public And Private ◽  
Performance Levels ◽  
High Rise ◽  
Significant Difference ◽  
And Performance ◽  
The Cost

Populous places are particularly in need of high-rise residential buildings, which are increasingly built as estates. The facilities in these estates entail proper management in order to serve the numerous residents there. Aimed at evaluating the facilities management (FM) services for three major kinds of residential estates (‘public’, ‘semi-public’ and ‘private’), a study was conducted based on a performance-importance-cost (PIC) evaluation model. The end-users’ perceived importance and performance levels and the cost data of the FM services for a public estate, a semi-public estate and a private estate were analyzed using the analytical hierarchy process (AHP), analysis of variance (ANOVA) and Fisher's least significant difference (LSD) procedure. The importance and performance levels of the services and their differences between the estates were revealed. The highest service performance and cost levels were found with the private estate, followed by the semi-public estate and the public estate, while the orders of their cost-effectiveness reversed. Rather than assessing merely the cost or performance of services, using the approach of this study to examine their cost-effectiveness can enable more holistic evaluations towards strategic property management.

scholarly journals Two-stage commercial evaluation of engineering systems production projects for high-rise buildings

2018 ◽  
Vol 33 ◽  
pp. 03004 ◽  
Author(s):  
Aleksander Bril ◽  
Olga Kalinina ◽  
Anastasia Levina
Keyword(s):  
New Technologies ◽  
Residential Buildings ◽  
Engineering Systems ◽  
Growth Trend ◽  
Two Stage ◽  
High Rise ◽  
New Construction ◽  
Stage System ◽  
Venture Financing ◽  
The Cost

The paper is devoted to the current and debatable problem of methodology of choosing the effective innovative enterprises for venture financing. A two-stage system of commercial innovation evaluation based on the UNIDO methodology is proposed. Engineering systems account for 25 to 40% of the cost of high-rise residential buildings. This proportion increases with the use of new construction technologies. Analysis of the construction market in Russia showed that the production of internal engineering systems elements based on innovative technologies has a growth trend. The production of simple elements is organized in small enterprises on the basis of new technologies. The most attractive for development is the use of venture financing of small innovative business. To improve the efficiency of these operations, the paper proposes a methodology for a two-stage evaluation of small business development projects. A two-stage system of commercial evaluation of innovative projects allows creating an information base for informed and coordinated decision-making on venture financing of enterprises that produce engineering systems elements for the construction business.

scholarly journals Relatively light walling in single-storey residential buildings in rural areas

2020 ◽  
Vol 3 (6) ◽  
pp. 84-86
Author(s):  
Kalimullina N.V ◽  
Babajanova Z. ◽  
Atamurotov O.E
Keyword(s):  
Rural Areas ◽  
Lightweight Concrete ◽  
Residential Buildings ◽  
Sound Insulation ◽  
Scientific Article ◽  
Foam Concrete ◽  
Load Bearing ◽  
Insulation Materials ◽  
The Cost ◽  
Supporting Structures

The scientific  article provides some considerations for the use of relatively new heat and sound insulation materials. As fencing, load-bearing, self-supporting structures, as well as for the walls of external auxiliary premises, the replacement of masonry with other alternatives is proposed. The authors offer ideas on the use of some lightweight concrete, such as foam concrete, the production of which at present can reduce the cost of building exemplary residential buildings.

A Calculation Model for High Rise Frame-Shear Wall Load Bearing Skeleton Structures

2014 ◽  
Vol 935 ◽  
pp. 259-264
Author(s):  
Xue Chen Lei ◽  
Lang Wu ◽  
Jing Wu
Keyword(s):  
Calculation Method ◽  
Residential Buildings ◽  
Residential Building ◽  
Shear Wall ◽  
Calculation Model ◽  
Load Bearing ◽  
Numerical Example ◽  
High Rise ◽  
Simplified Calculation ◽  
Skeleton Structure

The Skeleton-Infill residential building system has its particular advantages in building industrialization. In order to utilize this building type into high rise residential buildings, this paper proposes a calculation model for the frame-shear wall load bearing skeleton structure with limited floor stiffness. A simplified calculation method adopting ODEs is also demonstrated. A numerical example is proceeded to verify the effectiveness and accuracy of this methodology.

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.

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