Exploring the design and construction techniques of post-tensioned slabs

Abstract

This research aims to: 1. Study the post-tension concrete floor type. 2. Study the case study of the building construction process using post-tension concrete floors by studying the plans and construction steps of post-tension concrete floors from studying the manuals and documents for the construction of prestressed concrete floors, applying the knowledge gained from working and learning on-site to understand the characteristics, types, and plans of prestressed concrete floors and the construction steps of prestressed concrete floors. The results of this research provide information on the plans and steps in the construction of post-tension concrete floors, construction supervision, management to meet the specified time frame, various construction problems and solutions, and the development of knowledge and skills in construction supervision for future use. In conclusion, understanding the work process, construction process control methods, and inspection of various post-tension concrete floor constructions can increase work efficiency and reduce labor costs, time, and damage costs, such as contracting parties for breaches of contract. It was found that the advantages of the post-tension floor system are more floors at the same building height and less wind load at the same number of floors because it can improve long-term performance compared to traditional reinforced concrete and beam-slab systems. In addition, factors that affect the useful labor utilization ratio consist of 4 factors: complexity of building design, work items or work steps that make work difficult; use of appropriate tools and machinery to facilitate work and reduce labor waiting time; use of various innovations or substitute materials to help reduce time in work steps; arranging a team of workers that is appropriate for the size and type of work. These factors directly affect the ratio of useful workers. Results from this research Can be used to improve construction processes and inspection, Including selecting concrete materials to increase efficiency.