scholarly journals Precast Concrete Building Construction Process Comparison

2020 ◽  
Author(s):  
Tian Xiaosheng ◽  
Farook Hamzeh
Keyword(s):  
Precast Concrete ◽  
Building Construction ◽  
Construction Process ◽  
Process Comparison ◽  
Concrete Building

scholarly journals Precast Concrete Building Construction and Envelope Thermal Behavior: A Case Study on Portuguese Public Social Housing

CivilEng ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 271-289
Author(s):  
Pedro I. Brandão ◽  
João C. G. Lanzinha
Keyword(s):  
Social Housing ◽  
Precast Concrete ◽  
Building Construction ◽  
Building Stock ◽  
External Insulation ◽  
Concrete Building ◽  
Internal Side ◽  
The Impact ◽  
Southern European Countries

A considerable part of Southern European countries building stock was constructed before the implementation of national thermal regulations, and as such, it is currently exposed to challenges such as energy poverty and climate change. Portuguese public social housing presents a significant variety of construction systems and applied typologies. Among them, the “Novobra NK1”, a precast concrete construction system that exploits some innovative features in envelope components, has been used in several projects. Considering the importance of retrofitting to improve and adapt the thermal behaviors of buildings to face the aforementioned challenges, this article aims to provide an understanding of the behavior of a NK1 thermal envelope of a dwelling located in Covilhã, Portugal, and the impact of some constructive envelope retrofit measures applied. Results show that existing opaque envelope elements and glazed areas present characteristics that are no longer able to provide proper responses to contemporary building constructive requirements. External insulation was identified as a key retrofit measure, window replacement also being an advised solution for rigorous heating seasons. Improvements from the internal side of windows, such as roller shades, may provide few benefits during cooling seasons, and applying solar films is not advised without a proper thermal repercussion analysis.

Hybrid intelligent vehicle system for managing construction supply chain in precast concrete building construction projects

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Zul-Atfi Bin Ismail
Keyword(s):  
Supply Chain ◽  
Supply Chain Management ◽  
Construction Projects ◽  
Precast Concrete ◽  
Building Construction ◽  
Intelligent Vehicle ◽  
Supply Chain Risk ◽  
Chain Management ◽  
Content Type ◽  
Concrete Building

Purpose While the adversarial nature of precast concrete (PC) building construction is frequently cited in the PC building construction press, only a few researchers have investigated construction supply chain management within the construction industry. Due to the interdisciplinary transportation environment, which inevitably results in disruption, the uses of construction supply chain and recovery from construction supply chain risk must be a subject of real interest, yet transportation management research in this area is scarce. Design/methodology/approach The purpose of this study is to discuss the weakness in system approaches and their application for managing precast concrete building in the context of construction supply chain practice and how to overcome it. As a precursor to this paper, the paper reviews current construction supply chain management occurrence on PC building construction and explores the hybrid intelligent vehicle tools and techniques currently being used on such management. This paper also presents the new hybrid intelligent vehicle-based approach to manage construction supply chain risk and reduce associated tension on PC building construction schemes. Findings The findings reveal the need for more sophisticated construction supply chain management solutions which accord with the needs of PC building construction schemes. Originality/value The paper concludes by presenting a research framework for developing such a system in the future.

Engineering Planning and Management Control in High-Rise Building Construction

2012 ◽  
Vol 193-194 ◽  
pp. 1257-1260
Author(s):  
Min Zhang
Keyword(s):  
Management Control ◽  
Building Construction ◽  
Construction Process ◽  
High Rise ◽  
High Rise Building ◽  
Planning And Control ◽  
Flexible Modeling ◽  
Planning And Management ◽  
And Control ◽  
Different Levels

Various challenges should be considered in the development of an effective model for the planning and control of high-rise building construction. These challenges have been identified as results of the construction process. This paper discusses the engineering planning and management control in high-rise building construction. The methodology should also be able to address the concerns and considerations regularly faced in the industry and thus providing flexible modeling, which can be used by different levels of management

scholarly journals Seismic Behavior of Mid-Rise Precast Reinforced Concrete Building with Effect of Joints and Supports

2019 ◽  
Vol 8 (4) ◽  
pp. 3633-3637
Keyword(s):  
Reinforced Concrete ◽  
Response Spectrum ◽  
Precast Concrete ◽  
Mode Shapes ◽  
Base Shear ◽  
Reinforced Concrete Building ◽  
Axial Forces ◽  
Building Models ◽  
Precast Buildings ◽  
Concrete Building

Precast concrete structures are widely used in construction. It consists of prefabricated elements casted in industry and connected to each other to form a homogeneous structure. Connections function is to transfer moments and axial forces. Many engineers assume precast connection as pinned, but in reality, they are semi-rigid connections that transfer forces to other members. Lack of design and detailing of connection leads to improper behaviour of the structure, which then leads to the collapse of the building. Past earthquake studies show that many precast buildings performed poorly, and the main reasons were connections. This paper mainly focuses on understanding the seismic behaviour of mid-rise i.e seven-storey precast reinforced concrete buildings with various beam-column joints i.e rigid, semi-rigid, pinned and column-base supports i.e, fixed and hinged supports. Building is modelled and analyzed using ETABS v17 software. Rotational stiffness of precast billet connection is adopted for modelling of semi-rigid beam-column connections. Response spectrum and modal analysis are carried out. Results of displacements, storey drift, storey shear, storey stiffness, base shear, time periods and first mode shapes of models are discussed. It is observed, precast reinforced concrete building models with semi rigid connection performs better than building models with pinned connections and building models with fixed supports reduces the structural response to a great extent.

Indicators of Sustainable Construction in Eco Urban

2017 ◽  
Vol 42 (2) ◽  
pp. 43-48
Author(s):  
Somayeh Roshanfekr ◽  
N.M. Tawil ◽  
N.A. Goh
Keyword(s):  
Raw Materials ◽  
Research Work ◽  
Green Buildings ◽  
Building Construction ◽  
Sustainable Construction ◽  
Building Industry ◽  
Construction Process ◽  
Residential Areas ◽  
Sustainable Building ◽  
Critical Elements

This research work is an introduction to sustainable construction. A few significant indicators and many related subsets, which are crucial to green sustainable construction and also to green buildings, are mentioned in this study. An ecocity is one that utilizes all the critical elements of the environment. Urban sustainable construction is a vital criterion in this context. Sustainable construction paves the way for the building industry to progress towards achieving realistic standards of performance, particularly in view of economic, environmental, and social concerns. Sustainability is a popular expression that has given rise to various activities throughout the world once people began to grasp the implications of sustainable construction. Sustainability, which is an important factor in reducing the negative environmental effects of construction, includes improving the control and efficiency in the use of raw materials, land and power consumption. The lifetime of a building is based on some factors that are prognostic regarding the manufacture, remodelling, support, utilization, and administration of the building, and finally, the sources of utilization and waste formation, annihilation and devastation. All of these give rise to a range of ecological issues in the life of a building. Generally, a sustainable building and construction involves a reduction in the utilization of energy and also wastage from the beginning of the construction process and throughout the lifecycle of the building. Moreover, the environment is faced with mounting devastation due to the exploitation of natural resources for building construction and the replacement of agronomic regions by residential areas.

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