Constructability innovation in piperack design for refinery project

Increased competitiveness in the construction industry requires the improvement of a construction company’s capabilities to combine quality with economic and schedule aspects. Many studies and procedures in quality improvement focus on project quality improvement techniques and efficiency such as total quality management, value engineering, designability, contractability, constructability, operability, maintainability and other quality improvement techniques. This research focuses on constructability, which is the optimum use of construction knowledge and experience in planning, engineering, procurement and field operation to achieve overall project objectives. A case study was performed at an Indonesian refinery project, which applied the design and build type of contract. The case study aims to discuss and analyse the implementation of constructability innovation in the planning and design stage of the refinery project, focusing on optimization and improvement of pipe rack structure. The case study shows that the implementation of constructability during the planning and design stage increased the project performance and reduced the project cost.