철근 공장가공 시스템의 현장적용 문제점과 대책

Abstract

Rebar concrete construction takes most parts of domestic building construction and rebar construction it gives much influence to safety, durability, and construction period together with cast construction and concrete construction. It is also very important construction in aspect of cost. However, execution and management method of rebar construction maintains the labor-oriented characteristic that it relies upon experience and manpower of skilled rebar worker throughout the process from placing an order, manufacturing, and assembling. Therefore, the losses of material and labor are not being improved. Considering such circumstances, some construction companies conduct test rebar factory manufacturing in order to reduce the cost of rebar construction and minimize the loss of rebar material. Some other companies already established the conduct and oblige rebar construction in all fields starting from the contract stage at the main office. However, rebar factory manufacturing has many problems when apply into the field due to particularity of construction field. Therefore, some companies may achieved certain goals regarding loss rate management, but some others are pessimistic about rebar factory manufacturing because of problems occur when it is applied in the field. Therefore, this research analyzed problems of rebar factory manufacturing system when it is applied in the construction field in accordance with the process from volume estimation to execution stage and suggested the following improvement methods. Placing drawing shall be made accurately in the rebar volume estimation stage. The volume shall be estimated based on processing shape drawing of placing drawing. Before these, experts in placing drawing shall be trained. Rebar materials shall be purchased with ordering and warehousing by the lengthsof the material when placing an order and purchasing stage. In order to process by standards and lengths, the existing field processing method should be conversed as factory manufacturing method. However, it also should use field processing together under some circumstances. To converse all processes of rebarconstruction as such method, it is required to train experts who are responsible with rebar placing construction and a supportive system.