scholarly journals Characterization and Evaluation of Dust on Building Construction Sites in Brazil

2014 ◽  
Vol 5 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Emilia R. Kohlman-Rabbani ◽  
Aviad Shapira ◽  
Ana Rosa B. Martins ◽  
Béda Barkokébas Jr.
Keyword(s):  
Building Construction ◽  
Construction Sites

scholarly journals Exploring the Relationship between Safety Climate and Worker Safety Behavior on Building Construction Sites in Taiwan

2021 ◽  
Vol 13 (6) ◽  
pp. 3326
Author(s):  
Wei Tong Chen ◽  
Hew Cameron Merrett ◽  
Ying-Hua Huang ◽  
Theresia Avila Bria ◽  
Ying-Hsiu Lin
Keyword(s):  
Safety Climate ◽  
Organizational Factors ◽  
Safety Training ◽  
Building Construction ◽  
Construction Workers ◽  
Occupational Accidents ◽  
Successful Implementation ◽  
Construction Sites ◽  
Safety Behavior ◽  
The Relationship

Construction occupational accidents are often attributed to workers’ having an insufficient perception of how their actions influence safety in the construction site. This research explores the relationship between safety climate (SC) and personnel safety behavior (SB) of construction workers operating on building construction sites in Taiwan. The study discovered a significant positive relationship between SC and SB of Taiwan’s building construction sites, and in turn SC level had a positive impact on SB participation and overall safety perceptions. The higher the SC cognition of Taiwan’s building construction workers, the better the performance of SB was found to be. The dimension of "safety commitment and safety training" had the greatest relationship with SB. Safety training also had a deep impact on the cognition of SB. Therefore, the organizational culture and attitudes to safety coupled with the successful implementation of safety education and training can effectively enhance SC and worker SB on building construction sites in Taiwan, thereby potentially reducing the impacts of the underlying organizational factors behind safety related incidents.

scholarly journals Safety Assessment and Risk Management in Indian Building Construction Sites

2019 ◽  
Vol 8 (4S2) ◽  
pp. 8-12
Keyword(s):  
Safety Assessment ◽  
Building Construction ◽  
Construction Site ◽  
Construction Sites ◽  
Safety Measures ◽  
Severity Rating ◽  
Key Factor ◽  
Incident Rate ◽  
Observation Method ◽  
Unsafe Condition

Construction sites records high accident and incident rate due to lack of safety measures. Safety assessment rating is significant for every construction site to know safety status of the particular site. In this research TR safety observation method is used to assess the site performance. As unsafe condition is the key factor in every construction site, this research considers the possible unsafe conditions to assess the site performance. A questionnaire survey is done with the workers to know the existing safe conditions. Results showed that the safety performance of the site is 39%. Then every unsafe condition is ranked with respect to severity rating for detailed analysis. Furthermore bowtie analysis is used to identify the causes and consequences of the unsafe conditions. Through this analysis the owner can reduce the risk of every event and improve the site performance.

scholarly journals Rebar Worker Analysis Using a 3-Axis Accelerometer

2021 ◽  
Vol 7 ◽  
Author(s):  
Takuma Akaki ◽  
Tomoyuki Gondo
Keyword(s):  
Body Movement ◽  
Building Construction ◽  
Accelerometer Data ◽  
Construction Site ◽  
Work Intensity ◽  
Construction Sites ◽  
Repetitive Tasks ◽  
The Difference ◽  
Total Body ◽  
Large Building

The purpose of the present study is to grasp the situation of construction sites easily by distinguishing the movements of construction workers at construction sites from the accelerometer data attached to their waists. For the construction manager to accurately perceive the active or inactive state of his workers, their movements were classified into three distinct categories: walking, standing, and sitting. We tracked and observed two rebar workers for 5 days at a large building construction site. Their movements were classified by two-axis plots of (1) the difference between the maximum and minimum absolute values and (2) the value of acceleration at each second, and visualized by a heatmap among others for this trial. The results showed that despite the difficulty in distinguishing rebar work without a total body movement while sitting, the accuracy of discrimination was 60–80% in walking and sitting. From this analysis, we were able to identify repetitive tasks and the differences between morning and afternoon tasks. Furthermore, by applying simple visualization, we could concisely represent changes in work intensity over a relatively long period.

Quantification Methods for Construction Waste Generation at Construction Sites: A Review

2010 ◽  
Vol 163-167 ◽  
pp. 4564-4569 ◽  
Author(s):  
Ahmad Firman Masudi ◽  
Che Rosmani Che Hassan ◽  
Noor Zalina Mahmood ◽  
Siti Nazziera Mokhtar ◽  
Nik Meriam Sulaiman
Keyword(s):  
Construction Projects ◽  
Software Tool ◽  
Waste Reduction ◽  
Building Construction ◽  
Civil Infrastructure ◽  
Waste Generation ◽  
Construction Sites ◽  
Construction Waste ◽  
Future Direction ◽  
User Friendly

Estimation of construction and demolition (C&D) waste amount is crucial for implementing waste minimization program. Estimation of C&D waste amount generated is a mean in assessing the potential for waste reduction. Thus, a better understanding of C&D waste generation in terms of causes and sources can be achieved. The aim of this paper is to conduct a review on available construction waste quantification methods from previous studies, which have been utilized in certain countries, while attempting to choose the most suitable and applicable method, and to direct future studies for better quantification methods. This review is applicable only for building construction projects and did not include civil/infrastructure, demolition, renovation, and excavation projects. Six quantification methods and/or waste audit tool available from literatures are discussed, which include their limitation and future direction for this study. It is believed that some combination of these quantification methods could make a good impact in accurate numerical estimation of construction waste amount generated in building construction projects. A strong and accurate database as presented by Soliz-Guzman, combined with effective, vital, and resourceful estimation suggested by Jalali’s Global Index (GI), also with the aid of user-friendly software tool like the SMARTAudit could provide an effective and reliable waste quantification.

scholarly journals An Upgraded Sine Cosine Algorithm for Tower Crane Selection and Layout Problem

2020 ◽  
Author(s):  
Ali Kaveh ◽  
Yasin Vazirinia
Keyword(s):  
Material Handling ◽  
Harmony Search ◽  
Building Construction ◽  
Construction Sites ◽  
Layout Problem ◽  
Tower Crane ◽  
Np Hard Problem ◽  
Sine Cosine Algorithm ◽  
Crane Selection ◽  
Construction Site Layout

Tower crane is the core construction facility in the high-rise building construction sites. Proper selection and location of construction tower cranes not only can affect the expenses but also it can have impact on the material handling process of building construction. Tower crane selection and layout problem (TCSLP) is a type of construction site layout problem, which is considered as an NP-hard problem. In consequence, researchers have extensively used metaheuristics for their solution. The Sine Cosine Algorithm (SCA) is a newly developed metaheuristic which performs well for TCSLP, however, efficient use of this algorithm requires additional considerations. For this purpose, the present paper studies an upgraded sine cosine algorithm (USCA) that employs a harmony search based operator to improve the exploration and deal with variable constraints simultaneously and uses an archive to save the best solutions. Subsequently, the upgraded sine cosine algorithm is employed to optimize the locations to find the best tower crane layout. Several benchmark functions are studied to evaluate the performance of the USCA. A comparative study indicates that the USCA performs quite well in comparison to other recently developed metaheuristic algorithms.

Optimization of flexible lift processes on high-rise building construction sites

2019 ◽  
Vol 107 ◽  
pp. 102939
Author(s):  
Alireza Jalali Yazdi ◽  
Perry Forsythe ◽  
Alireza Ahmadian Fard Fini ◽  
Mojtaba Maghrebi
Keyword(s):  
Building Construction ◽  
Construction Sites ◽  
High Rise ◽  
High Rise Building

scholarly journals Field Evaluation of the Dust Impacts from Construction Sites on Surrounding Areas: A City Case Study in China

2019 ◽  
Vol 11 (7) ◽  
pp. 1906 ◽  
Author(s):  
Hui Yan ◽  
Guoliang Ding ◽  
Hongyang Li ◽  
Yousong Wang ◽  
Lei Zhang ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Meteorological Data ◽  
Large Diameter ◽  
Field Evaluation ◽  
Building Construction ◽  
Major Constituent ◽  
Construction Sites ◽  
Pm10 And Pm2.5 ◽  
Surrounding Areas ◽  
The Impact

Construction activities generate a large amount of dust and cause significant impacts on air quality of surrounding areas. Thus, revealing the characteristics of construction dust is crucial for finding the way of reducing its effects. To fully uncover the characteristics of construction dust affecting surrounding areas, this study selected seven representative construction sites in Qingyuan city, China as empirical cases for field evaluation. In the experiment, the up-downwind method was adopted to monitor and collect TSP (total suspended particulate), PM10 and PM2.5 (particulate matter ≤10 µm and 2.5 µm in aerodynamic diameter, respectively) concentrations, meteorological data and construction activities of each site for 2 to 3 days and 18 h in a day. The results show that the average daily construction site makes the surrounding areas’ concentration of TSP, PM10 and PM2.5 increase by 42.24%, 19.76% and 16.27%, respectively. The proportion of TSP, PM10 and PM2.5 in building construction dust is 1, 0.239 and 0.116, respectively. The large diameter particulate matter was the major constituent and the distance of its influence was limited. In addition, construction vehicles were one of the main influencing factors for building construction dust. However, building construction dust was not significantly correlated with any single meteorological factor when it did not change too much. Findings of this research can provide a valuable basis for reducing the impact of building construction dust on surrounding areas.

scholarly journals Assessment of Lean Construction Practice at Selected Construction Sites in Klang Valley

2018 ◽  
Vol 7 (4.35) ◽  
pp. 125
Author(s):  
Mohammed Elhaj Alsoufi Mohammed Ahmed ◽  
Leong Sing Wong
Keyword(s):  
Construction Projects ◽  
Management Strategies ◽  
Health And Safety ◽  
Lean Construction ◽  
Building Construction ◽  
Total Quality ◽  
Construction Sites ◽  
Construction Techniques ◽  
Comprehensive Survey ◽  
Klang Valley

Lean construction is known to reduce costs, improve profit or increase competitiveness, increase business opportunity and customer base, improve health and safety, improve quality, yield higher employee salaries, shorten production timescales and increase customer satisfaction. With little attention on research of lean construction in Malaysia, it remains a problem of non-standardization in waste elimination strategies thereby sub optimizing waste management in Malaysian construction projects. The objective of this paper is to evaluate lean construction techniques and measure the feasibility in term of their applicability for construction at selected sites in Klang Valley, Malaysia. The study is novel and significant in a sense that it can help to develop reliable management strategies for implementing lean construction technologies at the construction sites. Case studies were carried out as a strategic method and comprehensive survey that covers both questionnaire and interview were adopted as a method of data collection. Likert scale 1 to 5 was used in the written questionnaire with workers in order to assess the level of awareness and acceptance on the need of lean construction techniques for eight construction sites in various places and with various categories (infrastructure and building construction projects) in Klang Valley, Malaysia. Later, semi structural interview was conducted with expert judgment to justify the factors which affect the implementation of lean construction at the construction sites. From the study outcome, it was discovered that both Total Quality Management (TQM) and Industrialized Building System (IBS) were rated by the respondents to be highly effective in both infrastructure and building construction projects.

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