scholarly journals Combining BIM and Last Planner on Construction Sites: an Investigation of the Related Challenges

2019 ◽  
Author(s):  
Yaya Pitti ◽  
Conrad Boton ◽  
Daniel Forgues
Keyword(s):  
Construction Sites ◽  
Last Planner

The Potential Effectiveness of Lean Construction Tools in Promoting Safety on Construction Sites

2017 ◽  
Vol 33 ◽  
pp. 179-193 ◽  
Author(s):  
Mohamed Saad Bajjou ◽  
Anas Chafi ◽  
Abdelali En-Nadi
Keyword(s):  
Safety Management ◽  
Lean Construction ◽  
Worker Safety ◽  
Construction Sites ◽  
Human Errors ◽  
Potential Effectiveness ◽  
Safety Requirements ◽  
Last Planner System ◽  
Management Techniques ◽  
Last Planner

The development of more effective management techniques has become essential for the improvement of working conditions within the company. The construction industry is characterized by unpredictable and fluctuating construction processes which increase the level of risk of accidents. In this context, this work aims at conducting a synthesis of the most reliable research in the field of safety management in order to study the contribution of Lean Construction practices in the promotion of safety. The study evaluates the potential effectiveness of Lean Construction tools such as (Last Planner System, Visual Management, 5S, Error-proofing) in promoting the safety on construction sites. This study shows that lean construction tools have a great potential to improve the safety performance. Several Lean Construction practices such as the correlation between scheduled tasks and the ability of the staff working on site, choosing of working methods in compliance with safety requirements, the incorporation of visual tools, and the Simplification of workflow could minimize the risk of accidents and promote the worker safety through minimizing hazards, motivating people involvement in the planning phase and preventing human errors.

scholarly journals Using Real-Time Indoor Resource Positioning to Track the Progress of Tasks in Construction Sites

2021 ◽  
Vol 7 ◽  
Author(s):  
Jianyu Zhao ◽  
Ergo Pikas ◽  
Olli Seppänen ◽  
Antti Peltokorpi
Keyword(s):  
Real Time ◽  
Construction Sites ◽  
Construction Productivity ◽  
Monitoring Task ◽  
Planning And Control ◽  
Construction Methods ◽  
Last Planner System ◽  
The Hours ◽  
Last Planner ◽  
And Control

Lean construction methods have demonstrated potential to improve construction productivity. For example, the location-based management system and the last planner system have increased the reliability of planning and control in construction production. However, these benefits are often reduced because of inaccurate manual data collection. To alleviate these problems, technologies for automated monitoring of workers have been developed to identify site events in chaotic environments. This paper aims to investigate whether a Bluetooth low-energy-based real-time indoor positioning system can monitor task progress from workers’ presence. Our findings suggest that the proposed system is a feasible solution for monitoring task-level progress when there are explicit dependencies between tasks. This method could automatically detect task start and finish times and estimate the hours required to complete a task. This enables the measurement of waste hidden inside tasks, which allows for interventions for improving flows and eliminating waste.

Construction Control As A Strategy For Improving The Quality Of Buildings And Structures

2020 ◽  
Keyword(s):  
Quality Control ◽  
Life Cycle ◽  
Construction Control ◽  
Construction Sites ◽  
Actual Problem ◽  
Construction Market ◽  
Construction Products ◽  
Underlying Causes ◽  
Required Quality

In construction production, the safety of constructing buildings and structures is achieved by ensuring the required quality as a result of systematic construction control based on the implementation of a complex of technical, economic and organizational measures at all stages of the object's life cycle. The article deals with the actual problem of improving the quality of construction products-buildings and structures in conjunction with the activities of construction control bodies. The article presents the advanced foreign and domestic experience of ensuring the quality control at the construction sites, providing for the prevention of the underlying causes of defects and increasing the interest of the contractors directly. On the basis of the analysis of the current situation with quality control at the construction market, ways to improve its efficiency by developing a unified system of technological implementation of relevant requirements for the quality of construction products, determining the rational number and business load of construction control engineers, as well as the active activities of self-regulatory organizations in this area are offered.

Improvement Of The Method Of Winter Concreting With The Use Of Heating Wires

2019 ◽  
pp. 51-58
Keyword(s):  
Harmful Effect ◽  
Electric Heating ◽  
Strength Development ◽  
Construction Sites ◽  
Dominant Position ◽  
Heating Wire ◽  
Hands On ◽  
Basic Parameters ◽  
Monolithic Structures

Long-term experience of application of a method of electric heating by heating wires of the monolithic concrete and reinforced concrete structures erected in winter conditions is analyzed. This method, developed by the author of the article, took a dominant position on the construction sites due to the simplicity and efficiency in comparison with the mass applied in those years, the method of electric heating of concrete with steel round and strip electrodes. The data on labor intensity, material and energy costs in comparison with the method of rod electric heating are presented. Step-by-step technological operations on preparatory works and electric heating of monolithic structures with the use of extensive hands-on material, which formed the basis for the development of technological regulations, supplemented by a number of new proposals to improve the technology of works, are concretized. In order to work out the optimal mode of heat treatment, the studies of the concrete thermal conductivity factor in the process of its heating and strength development were carried out. The method for calculation of the basic parameters of concrete electric heating is presented. For simplification of calculations, for a wide contingent of masters, superintendents and technical personnel, the nomogram , making it possible with sufficient accuracy under the construction conditions to calculate the necessary heating parameters, was developed. The necessity of grounding the heating wire remaining in the concrete to reduce the harmful effect of magnetic radiation from various appliances and household appliances on the human body is noted.

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