Recent projects for transferring Public Office buildings and estimation of appropriate construction expense are highly important for both government and construction firms. Moreover, estimation and management of construction expense can be regarded as extremely important duties for effective execution of a national budget as nation’s finance is invested in the Public office building projects progressed by the government. To progress one project for Public office building, not only the organization demanding the project but also an investment screening organization, a budget-managing organization, a feasibility assessment institution and many other related organizations participate in the project and a lot of decisions arisen from the project operation are made on the basis of construction expenses calculated for relevant stages. And estimation of rational construction expense is also critical for designers in order to create design within the fixed budget simultaneously with securing the quality and efficiency of structures to the maximum. Therefore this research suggested an improvement process to analyze problems in current construction expense management process and to administer the construction expenses effectively.

본 연구에서는 국내 초고층 건물 사례들을 바탕으로 사례 데이터베이스를 구축하여 구조시스템 대안 생성 및 선정 업무를 효율적으로 처리 할 수 있는 설계지원시스템을 개발하였으며, 사례 데이터베이스의 정보를 이용한 사례기반추론기법을 제안하였다. 국내 47개 초고층 건물에 대한 사례 데이터베이스의 설계정보를 분석하여 초기설계 단계에서 구조시스템 선정을 위한 귀납적 조회 모듈 및 유사사례선정을 위한 최근린 조회기법도 제시하였다.