서지주요정보
철근콘크리트 박스거더 교량의 횡방향 단면 최적설계 = Section optimization of reinforced concrete box-girder bridges
서명 / 저자 철근콘크리트 박스거더 교량의 횡방향 단면 최적설계 = Section optimization of reinforced concrete box-girder bridges / 이병국.
저자명 이병국 ; Lee, Byung-Kook
단체명 건설환경공학과
발행사항 [대전 : 한국과학기술원, 2002].
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소장정보

등록번호

8012942

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 02009

SMS전송

도서상태

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초록정보

In this dissertation, transverse section optimization of reinforced concrete box-girder bridges is introduced on the basis of the results of finite element analysis with 6 DOF per node flat shell element. For structural optimization, a simple, yet effective, algorithm is used. Instead of utilizing a more sophisticated mathematical model that deals with many design variables and complicated descriptive functions, the introduced algorithm performs a direct search of the section database to reach to an optimum solution. After constructing the database of predetermined R/C sections which are arranged in order of increasing nominal strength of sections, the relationship between the section identification numbers and the resistant capacities of sections is established by regression and used to obtain and initial solution(section) which satisfies the imposed design constraints. Assuming that there exist optimum section near the one initially selected by continuous optimization, a direct search is conducted to find the discrete optimum solution. The optimization of the entire structure is accomplished through the individual member optimization. Comparison of the transverse sections of R/C box-girder bridges in Korea with those in foreign countries and parameter studies based on the introduced design algorithm give the following results: (1) cross-sectional area of R/C box-girder bridges in Korea may be reduced to over 15% in an aspect of transverse member forces to maintain the minimum safety margin; (2) the design of R/C box-girder section is dominantly governed by the local constraints related to the longitudinal bending and shear design.

서지기타정보

서지기타정보
청구기호 {MCE 02009
형태사항 v, 82 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 : A, 박스거더 단면의 부재력에 대한 영향선
저자명의 영문표기 : Byung-Kook Lee
지도교수의 한글표기 : 곽효경
지도교수의 영문표기 : Hyo-Gyoung Kwak
기관명칭변경 : 토목공학과가 건설환경공학과로 변경됨(2002년부터)
학위논문 학위논문(석사) - 한국과학기술원 : 건설및환경공학과,
서지주기 참고문헌 : p. 72-73
주제 박스거더
교량
횡방향단면
최적설계
Boxgirder
bridge
transverse section
optimization
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