ปัจจัยที่ก่อให้เกิดการเปลี่ยนแปลงงานก่อสร้าง และแนวทางลดผลกระทบขณะดำเนินการก่อสร้าง โดยเมทริกซ์การประเมินความเสี่ยง

Abstract

Currently, numerous number of construction projects in Thailand, especially residential projects, have problems due to changes during construction. Several projects constructed different from construction drawing because of various reasons including changes from the project owner. In this research, causes and solutions were observed to find out the impact on the construction. 50 people were interviewed including building owners, architects, and contractors. After discovered a list of causes, the frequency and impact of construction were identified by interrogating with sample group of 120 people. Then, the high level of frequency and high impact in construction using Risk Assessment Matrix were considered to find their solutions by consulting 9 experts, The results showed 12 regular causes which high impact in construction. The causes derived from building owners, architectures, and contractors which are: 56.52%, 28.26%, and 15.22% respectively. The building components were a highly impact include roof structure, wall door window, electrical system and decoration. The major causes come from designing process especially programming process and drawing process. This research could help and guide any related people in residential construction to effective decreasing the risk and impact of changes during the construction period.