Performance Of Reinforced Concrete Beam With Embedded Galvanized Steel As Lightning Down Conductor Cable

Due to current problem with existing lightning protection systems such corrosion and stolen cable, a new system that can be installed within concrete structures has been introduced by the International of Electrotechnical Commission (IEC). However, detailed installation guidelines were not provided and previous study indicated that improper installation techniques and unsuitable materials embedded inside the concrete structure could cause physical damage to the concrete. Therefore, a newly proposed arrangement of galvanized steel cable was studied in this research. The impact of lightning simulation towards the concrete beams was determined. Concrete beams of 200 x 300 x 1200 mm sizes were used and several tests were conducted in order to investigate the performance of concrete beams. It was found that; very minimum temperature increases inside the concrete beams that were charged with high electric current. From the frequency test, reduction of natural frequency before and after the lightning simulation can be assume as negligible

Experimental Investigation on the Effectiveness of Truss-Shaped Punching Shear Reinforcement in Flat Slab

The use of reinforced concrete flat slabs in building construction increases the floor-to-floor clearance, expedites site operations, and offers aesthetically rewarding features. However, punching shear failure in a flat slab is brittle in nature and can be potentially catastrophic. Many studies have been conducted to improve the punching shear capacity of flat slabs but some of the proposed punching shear reinforcements were complicated and costly. This research aimed to evaluate the effectiveness of a simple and cost-effective; truss-shaped punching shear reinforcement embedded in a 1200 mm × 1200 mm × 175 mm thick flat slab specimen. Three types of truss-shaped punching shear reinforcements were prepared. All specimens were supported at the edges and subjected to gravity load tests. The results showed that the introduction of truss-shaped punching shear reinforcement increased the punching shear capacity in the range of 7.71% to 21.47%. The maximum deflection of these specimens exhibited an insignificant increase compared to the control specimen, suggesting that punching failure governed the ultimate behavior. The additional strength offered by truss-shaped punching shear reinforcement makes flat slabs as a construction material more appealing because they allow them to withstand higher design loads

Experimental Investigation on the Effectiveness of Truss-Shaped Punching Shear Reinforcement in Flat Slab

The use of reinforced concrete flat slabs in building construction increases the floor-to-floor clearance, expedites site operations, and offers aesthetically rewarding features. However, punching shear failure in a flat slab is brittle in nature and can be potentially catastrophic. Many studies have been conducted to improve the punching shear capacity of flat slabs but some of the proposed punching shear reinforcements were complicated and costly. This research aimed to evaluate the effectiveness of a simple and cost-effective; truss-shaped punching shear reinforcement embedded in a 1200 mm × 1200 mm × 175 mm thick flat slab specimen. Three types of truss-shaped punching shear reinforcements were prepared. All specimens were supported at the edges and subjected to gravity load tests. The results showed that the introduction of truss-shaped punching shear reinforcement increased the punching shear capacity in the range of 7.71% to 21.47%. The maximum deflection of these specimens exhibited an insignificant increase compared to the control specimen, suggesting that punching failure governed the ultimate behavior. The additional strength offered by truss-shaped punching shear reinforcement makes flat slabs as a construction material more appealing because they allow them to withstand higher design loads

Green roof performance under Malaysia tropical climates : a review

Green roof system is one of sustainable approach for energy consumption reduction and improving the aesthetic value of the built environment. The system has been adopted by most of developed countries; and in Malaysia, research on green roof studies are quite evolving however the implementation of the system is slow due to some perceptions and obstacles. Green roof has potential on providing benefits such as reduction on the urban heat island effect, reduces temperatures, pollution and improves the attenuation of stormwater. This paper will highlights on a preliminary review of the implementation green roof system in Malaysia and explores the performances of Malaysian green roof in order to highlight the performance of green roof under tropical climatic conditions using local configurations

Awareness of the Installation the Lightning Protection System (LPS) by Using Structural Bonding Method in Malaysia

Structural Bonding Method (SBM) is one type of Lightning Protection System (LPS), design to protect human, structures, contents inside structures, electrical equipment, transmission lines and other from the lightning flash. Besides, SBM is a standard LPS that comply with technical standards or codes of practice or called as conventional Lightning Protection System. In order to know the level of the Awareness of the Installation LPS by using SBM in the building among Civil Engineering Consultants, conducting survey need to be done. This paper presents the Research Design and Research Strategy in conducting the survey. It is explaining about the way before conducting the survey which are determine the population of sample (Consultant Company at Northern Region Area), samples of respondents (Civil Engineer at Consultant Office with the number of sample is 40), data collecting process, structure of the questionnaire form and the way in analysis the data. After the analysis the data, the result of the level of awareness in the Installation of LPS by using SBM are consider as moderate level

Flexural Behaviour Of High Performance Slurry Infiltrated Fiber Reinforced Concerete With Different Curing Method.

In the conventional steel fiber reinforced concrete, the structure is fabricated by combining steel fiber to the concrete mix. By using this method, the volume fraction of fiber is limited. So in order to improve the properties of fiber reinforced concrete, slurry infiltrated fiber concrete was introduced. In this study, concrete slurry grades 80 is 3%, 4%, 5% and also the control sample without fiber. Sizes of prism used in this study are 100 x 100 x 500 mm. In order to determine the effect of the curing method, each sample with different volume friction were prepared for two types of curing method. Water curing and steam curing at temperatures of 80° Celsius and cured for 24 hours were applied. The prisms were tested by two-point load test until failure. The behaviors of the prisms were observed and the load-deflection was recorded. Based on the result, it was concluded that the optimum steel fiber content in this report was 5 % by volume friction which provided the highest flexural strength and deflection. The prisms with steam curing obtained lower flexural strength compared to the water curing prisms except for the control specimen

Implementation Of Lean Technique Towards Reducing Waiting Time In A Public Healthcare Using Arena Simulation

Lean is a set of operating philosophies and methods that can help patients create maximum value by reducing waste and waiting time. Longer waiting times are associated with increased levels of discomfort experienced by patients that may affect the patient’s mental health, leads to depression, anxiety disorder and psychological distress. The waiting time of clinic is considered one of the crucial aspects of patient satisfaction which is a key indicator of service delivery. Therefore, the purpose of this study is to implement lean techniques towards reducing waiting time at outpatient department in one of the public healthcare centres in Kedah. This study had collected the data for three days at the outpatient department by using qualitative method through interview and observation. Data was collected through a record phenomenon with instrument and observing the service time of patients in the process flow throughout the treatment period from the moment they arrived at the healthcare until treatment is provided and the patient leaves the outpatient department. Arena simulation software designed for data analysis was used to simulate the modeled process in the simulation software. The simulation system can help to produce more accurate decision for an efficient flow of the patient’s in and out of the treatment process and reduce the waiting time. The results showed the total average processing time for each patient through all the process had reduced by 7.21 minutes (15.20%) after the waste was eliminated and improvement process had been made. This can lead to an increase in the number of patients in and out in daily operation at the outpatient department

Green Lean Practices towards Increasing Operation Value of Manufacturing Company

Nowadays, manufacturing industries are rapidly developing. However the constraints faced by today's producers are how to produce their products quickly through low costs while at the same time, the reduction of waste disposal in the environment. The high waste of time in the manufacturing industry is often attributed to the wastage that occurred in the company’s operations. Lean manufacturing is linked for improving the standard working. It is one of the production strategies that drive the industry towards a more efficient production of goods and services. Meanwhile, green manufacturing has been adopted as a requirement to achieve a minimal negative impact on the environment. The green lean is a concept to make sure system more efficient, reduce unwanted product releases and minimize the environmental impact. So, the main objective of this research is to reduce cycle time in manufacturing company by adopting green lean elements. This research focuses on furniture manufacturing and conducted a structural interview question, observation and time study method. To refine those time operation problems, the company had implemented the new green lean practices into the operation department. The results after implement these methods totally show an improved progress. The paper would help the manufacturer to organize and improve their company performance. In conclusion, this research is about to identify and reduce the time waste to improve the operation value of the manufacturing company while at the same time it would reduce the environmental impact in future

The Influences of Workplace Environment, Job Satisfaction and Organization Commitment on Job Performance in Manufacturing Industry

 This study was conducted to examine the influence of worker environment, organizational commitment and job satisfaction on work performance among the workers in manufacturing industry in Batu Pahat, Johor. The objective of this study is to identify the dominant influence of workplace environment, organizational commitment, and job satisfaction that effects the job performance in manufacturing industry and to determine the relationship of workplace environment, organizational commitment, and job satisfaction towards job performance. To achieve the objectives, the data were collected through a questionnaire that investigated various performance aspects. Quantitative methods used to achieve the objectives of the study. The Statistical Package for Social Science (SPSS) will be used to calculate the data obtain from the soiled questions that were presented to the respondents. The aim of this study is to train researching developers from universities in view of the transfer, interpretation and scientific knowledge. This study contributes to educate and raise awareness of management, employers, and employees. The result of this study shows there are relationship of workplace environment, organizational commitment, and job satisfaction towards job performance

Implementation Of Lean Technique Towards Reducing Waiting Time In A Public Healthcare Using Arena Simulation

Lean is a set of operating philosophies and methods that can help patients create maximum value by reducing waste and waiting time. Longer waiting times are associated with increased levels of discomfort experienced by patients that may affect the patient’s mental health, leads to depression, anxiety disorder and psychological distress. The waiting time of clinic is considered one of the crucial aspects of patient satisfaction which is a key indicator of service delivery. Therefore, the purpose of this study is to implement lean techniques towards reducing waiting time at outpatient department in one of the public healthcare centres in Kedah. This study had collected the data for three days at the outpatient department by using qualitative method through interview and observation. Data was collected through a record phenomenon with instrument and observing the service time of patients in the process flow throughout the treatment period from the moment they arrived at the healthcare until treatment is provided and the patient leaves the outpatient department. Arena simulation software designed for data analysis was used to simulate the modeled process in the simulation software. The simulation system can help to produce more accurate decision for an efficient flow of the patient’s in and out of the treatment process and reduce the waiting time. The results showed the total average processing time for each patient through all the process had reduced by 7.21 minutes (15.20%) after the waste was eliminated and improvement process had been made. This can lead to an increase in the number of patients in and out in daily operation at the outpatient department