인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Introduction: Creep deformation of concrete depends at the character of stress state (compression, tension, bending, etc.). At this moment in our country as well abroad the chief parameter which determine by results of long tests concrete sample is the creep of concrete. These tests are done in the mode of uniaxial compression in spring units for one or several specimens, which simulates the compression of walls and columns. But in addition to centrally compressed elements, bending is present in an important part of structures (extracentral compressed columns, slabs, beams, etc.). In unique and difficult constructions massive reinforced concrete elements (foundations, elements of supports for equipment, columns of the lower floors of high-rise buildings, etc.) are often used. In this case the real work of structures under longterm effect of loading differs at the experimental one. Objective: Design and approbation of these methods to concrete testing samples under conditions other than standard tests - in the bending and three-axial compression modes. Materials and methods: In this scientific article describe the methodology of experimental setup for investigation of creep concrete specimens in the bending mode and in the mode imitating three-axial compression, describes the parameters of testing devices, specimens under test and principles transmission of load. Results: In this scientific article results of the experimental studies are presented in the graphical form in the article; their analysis is fulfilled. Conclusions: The perspectivity of the suggested approaches to the testing of concrete specimens for long-term loads has been shown, and recommendations for changes in GOST 24544 have been prepared.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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