scholarly journals Applying Virtual Reality to Improve the Construction Logistics of High-rise Modular Integrated Construction

2019 ◽  
pp. 76-83
Author(s):  
Enoch H.L. Cheung ◽  
S. Thomas Ng
Keyword(s):  
Virtual Reality ◽  
Hong Kong ◽  
Time Management ◽  
Construction Projects ◽  
Residential Building ◽  
Construction Sites ◽  
Human Errors ◽  
Management Philosophy ◽  
High Rise ◽  
Speed Up

Modular and offsite construction is becoming increasingly popular around the world. In Hong Kong, a modular integration construction (MiC) method is identified as a pragmatic approach to speed up the housing construction program and to solve the productivity and manpower problems of the industry. Using the MiC, virtually all the construction works including the finishing as well as the mechanical and electrical installation are completed offsite. The MiC units are then delivered to and installed on site. While the MiC can shift the risks of construction projects to the factories, this construction method is not without challenges. This is particularly the case for Hong Kong as most of the construction sites in the city are cramped due to the high-density urban environment. The problem is aggravated when every modular unit is unique and they are time consuming to produce. Any damages to the MiC components during the lifting process could seriously affect the entire construction sequence under a just-in-time management philosophy. Therefore, it is imperative to plan and monitor the logistics carefully when the MiC technique is used. To reduce any human errors and increase the efficiency and accuracy of the lifting process, a virtual reality (VR) approach may be adopted to simulate the construction logistics of MiC construction and train the crane operators. In this paper, a VR model is developed to simulate the construction of a high-rise residential building in a confined site. Various functions are built into the VR model to support the decisions pertinent to lifting logistics planning. In this paper, the design considerations and functions of the VR model are identified through a series of interviews. Moreover, the validation interviews help unveil the potentials and pitfalls of the developed VR model.

scholarly journals TIME REDUCTION EFFECT OF THE ENHANCED TACT METHOD FOR HIGH-RISE RESIDENTIAL BUILDINGS

2015 ◽  
Vol 22 (7) ◽  
pp. 944-953 ◽  
Author(s):  
Donghoon LEE ◽  
Dong-Sub KIM ◽  
Gwang-Hee KIM ◽  
Sunkuk KIM
Keyword(s):  
Construction Projects ◽  
Critical Path ◽  
Residential Buildings ◽  
Residential Building ◽  
Building Projects ◽  
Schedule Management ◽  
High Rise ◽  
Time Reduction ◽  
Reduction Effect ◽  
Line Of Balance

The finish work on high-rise residential buildings is performed simultaneously with mechanical and electrical construction work, which results in frequent work interference and delay. This significantly hinders efficient schedule management. Critical Path Method (CPM) is inefficient when applied to high-rise residential building projects in which work is repeatedly carried out for each floor. Line-of-Balance (LOB) is widely used for its effectiveness in managing repetitive work. LOB was developed into TACT and eTACT (enhanced-TACT) to combine heterogeneous works con­tinuously. In particular, the eTACT schedule management method has an advantage in that it is capable of systemati­cally connecting detailed construction, mechanical and electrical construction projects using a work planning template. This study evaluates the time reduction effect of the eTACT method for a high-rise residential building. A comparative analysis of data on 102 cases of non-applied projects and 44 cases of projects using the eTACT method over a period of 10 years is presented to verify its effectiveness. The result shows that finish work time was reduced by 25% or about 53 days on average.

scholarly journals Framework to Guide Rail type Adhesive Lifting Scaffolding in the Design and Application of High-rise Residential Buildings

2015 ◽  
Vol 4 (4) ◽  
pp. 1
Author(s):  
Man Mao ◽  
Rui Li ◽  
Ke Zeng
Keyword(s):  
Economic Efficiency ◽  
Residential Buildings ◽  
Residential Building ◽  
Building Design ◽  
Engineering Practice ◽  
Systematic Design ◽  
Guide Rail ◽  
Progress Control ◽  
High Rise ◽  
Speed Up

<p>As to combine with specific engineering practice, this paper presents a framework to guide rail type adhesive lifting scaffolding in high-rise residential building design and constructions well as changed the traditional characteristics of steel pipe scaffold by using new standard truss and scaffold board design All the connecting parts are connected by bolt, using electric wrench to install, and implementing the overall tools, systematic design and installation. Engineering practice proved that the frame rail type adhesive lifting scaffold can not only speed up the construction progress, control costs and improve economic efficiency, but also be popularized in similar engineering.</p>

Managing Construction Noise in Hong Kong - Facing a New Decade with Confidence

2021 ◽  
Vol 263 (1) ◽  
pp. 5541-5551
Author(s):  
Wilson Ho ◽  
Kin-Che Lam ◽  
Morgan CHENG ◽  
Max Yiu ◽  
Hannah Chin-wing Lo ◽  
...  
Keyword(s):  
Hong Kong ◽  
Large Scale ◽  
Construction Sites ◽  
3 Dimensional ◽  
Face To Face ◽  
Noise Disturbance ◽  
High Rise ◽  
Current State ◽  
Public Survey ◽  
Challenges And Opportunities

Hong Kong is a mature and busy metropolis with 7.5 million residents. Being constrained by limited land area for development, the cityscape of Hong Kong is primarily 3-dimensional in nature. The vast majority of the growing population is accommodated in closely packed high-rise residential towers. Similar to other major urban centres worldwide, Hong Kong citizens are affected by the virtually continuous construction activities expanding and renewing the city. The numerous construction sites are also bringing noise disturbance to some neighbourhoods. In 2020, the Hong Kong Environmental Protection Department completed a feasibility study on managing construction noise, including those associated with renovation of domestic premises. Part of the study was the conducting of face-to-face interviews of more than 5,000 households via a large scale public survey to gauge their views on construction noise disturbance, among others. This paper describes the current state and conditions of construction noise in Hong Kong, the issues and constraints, as well as challenges and opportunities. Highlights from the scientifically conducted public survey will be included to provide a robust and more comprehensive description of the prevailing situation.

scholarly journals Comprehensive use of IT solutions to monitor the state of construction sites

2021 ◽  
Vol 263 ◽  
pp. 04005
Author(s):  
Alexander Konikov ◽  
Nikolay Garyaev
Keyword(s):  
Construction Projects ◽  
Information Technologies ◽  
Large Scale ◽  
Satellite Communications ◽  
The State ◽  
Construction Sites ◽  
High Rise ◽  
Artificial Earth ◽  
Subject Areas

The work examines new IT - solutions for monitoring the state of construction projects. Two areas are investigated: the first - monitoring of high-rise buildings and other large-scale objects, the second - monitoring of construction sites located in remote, hard-to-reach areas. The possibilities of integrated use of the following information technologies are considered: Machine Vision, Wireless Sensor Network WSN, Edge Computing. Other new IT solutions are also in the field of view of the study: Cloud Computing, the Internet of Things, etc. To improve the quality of monitoring, it is proposed to use advances in other subject areas - in the field of unmanned aerial vehicles (drones) and in the space area (geostationary satellite communications). The idea of using drones and artificial earth satellites to monitor objects (particularly buildings) is not new in itself, but the use of these devices as part of the proposed set of IT technologies allows to bring solutions in the construction industry to a qualitatively higher level.

scholarly journals Comprehensive Evaluation of Carbon Emissions for the Development of High-Rise Residential Building

Buildings ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 147 ◽  
Author(s):  
Stephen Yim ◽  
S. Ng ◽  
M. Hossain ◽  
James Wong
Keyword(s):  
Hong Kong ◽  
Life Cycle ◽  
Carbon Emissions ◽  
Comprehensive Evaluation ◽  
Ghg Emissions ◽  
Residential Building ◽  
Low Carbon ◽  
Residential Housing ◽  
High Rise ◽  
Whole Life Cycle

Despite the fact that many novel initiatives have been put forward to reduce the carbon emissions of buildings, there is still a lack of comprehensive investigation in analyzing a buildings’ life cycle greenhouse gas (GHG) emissions, especially in high-density cities. In addition, no studies have made attempt to evaluate GHG emissions by considering the whole life cycle of buildings in Hong Kong. Knowledge of localized emission at different stages is critical, as the emission varies greatly in different regions. Without a reliable emission level of buildings, it is difficult to determine which aspects can reduce the life cycle GHG emissions. Therefore, this study aims to evaluate the life cycle GHG emissions of buildings by considering “cradle-to-grave” system boundary, with a case-specific high-rise residential housing block as a representative public housing development in Hong Kong. The results demonstrated that the life cycle GHG emission of the case residential building was 4980 kg CO2e/m2. The analysis showed that the majority (over 86%) of the emission resulted from the use phase of the building including renovation. The results and analysis presented in this study can help the relevant parties in designing low carbon and sustainable residential development in the future.

Quantitative Comparisons of Construction Productivity of Curtain Wall Operations in High-Rise Buildings by Means of Simulation Techniques

2011 ◽  
Vol 250-253 ◽  
pp. 3577-3580 ◽  
Author(s):  
Tae Hee Lee ◽  
Hyun Mi Kim ◽  
Yong Ho Ko ◽  
Seung Woo Han
Keyword(s):  
Construction Projects ◽  
Process Model ◽  
Performance Comparison ◽  
Construction Sites ◽  
Curtain Wall ◽  
Construction Productivity ◽  
High Rise ◽  
Simulation Techniques ◽  
Literature Reviews ◽  
Wall Construction

The paper presents construction performance comparison of curtain wall operations. It is well known that curtain wall operations are major parts of high-rise construction projects. Literature reviews of high-rise buildings and curtain wall operations lead the study to focus on a unit system which has been widely applied in the domestic high-rise curtain wall construction. Data was collected by recording in actual curtain wall construction sites and simulation model was implemented for the quantitative comparison between the simulation value and the value of actual curtain wall construction sites. It is expected that this proposed study contributes to the further studies of developing an optimized assembling process model for engineers and site personnel in construction.

scholarly journals Framework to Guide Rail type Adhesive Lifting Scaffolding in the Design and Application of High-rise Residential Buildings

2015 ◽  
Vol 4 (4) ◽  
pp. 1
Author(s):  
Man Mao ◽  
Rui Li ◽  
Ke Zeng
Keyword(s):  
Economic Efficiency ◽  
Residential Buildings ◽  
Residential Building ◽  
Building Design ◽  
Engineering Practice ◽  
Systematic Design ◽  
Guide Rail ◽  
Progress Control ◽  
High Rise ◽  
Speed Up

<p>As to combine with specific engineering practice, this paper presents a framework to guide rail type adhesive lifting scaffolding in high-rise residential building design and constructions well as changed the traditional characteristics of steel pipe scaffold by using new standard truss and scaffold board design All the connecting parts are connected by bolt, using electric wrench to install, and implementing the overall tools, systematic design and installation. Engineering practice proved that the frame rail type adhesive lifting scaffold can not only speed up the construction progress, control costs and improve economic efficiency, but also be popularized in similar engineering.</p>

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