서지주요정보
단순 PC빔교의 연속바닥슬래브에 발생하는 응력집중에 관한 연구 = A study on the stress concentrations of simply supported bridges with continuous slabs
서명 / 저자 단순 PC빔교의 연속바닥슬래브에 발생하는 응력집중에 관한 연구 = A study on the stress concentrations of simply supported bridges with continuous slabs / 송명관.
저자명 송명관 ; Song, Myung-Kwan
발행사항 [대전 : 한국과학기술원, 1997].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8007491

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 97006

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Precast(PC) concrete girder can be used economically for spans of up to 30m. Mostly, precast concrete girders are simply supported and continuous slabs are cast on these elements. In this paper, the finite element program is presented for the analysis of the stress concentrations of the multi-span simply supported girders with continuous slabs. The study of the nonlinear behavior of composite bridges is quite complex. The difficulties can be attributed to the use of various materials and structural components, and to their behavior under different load conditions. The finite element method is a powerful tool which can be adopted to improve the understanding of the structural behavior of these bridges. The program includes the material nonlinearity of the concrete and steel reinforcements of the RC slabs, but assumes that the PC beam and cross beam behave linearly. In modeling the RC slabs and girders the four node degenerated shell element formulated based on the assumed strain interpolation and the 3D beam element are used, respectively. The accuracy and reliability of the program are demonstrated by the analysis of a two span composite beam. Using the program, the influence of the magnitude of load, the existence of the cross beam, and the filling of open joints on the continuous slabs at supports are examined. In addition, for the purpose of examining the occurrence of initial cracks in the slabs at supports, the change of the compressive strength and the Young's modulus of concrete is considered as time-varying function. As a result of this study, it is appeared that the best solution for the improvement of durability, appearance, and ride comfort of the PC bridges is to transform the individual spans into a fully continuous system by using thick diaphragms and a continuous deck slab at the supports. For the purpose of this solution, the proper method of constructing the perfect continuation of precast girder elements is needed.

서지기타정보

서지기타정보
청구기호 {MCE 97006
형태사항 v, 56 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 수록
저자명의 영문표기 : Myung-Kwan Song
지도교수의 한글표기 : 최창근
지도교수의 영문표기 : Chang-Koon Choi
학위논문 학위논문(석사) - 한국과학기술원 : 토목공학과,
서지주기 참고문헌 : p. 54-55
주제 응력집중
연속바닥슬래브
단순지지 교량
Stress concentrations
Continuous slabs
Simply supported bridges
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