Cross-sectional properties of thin-walled multi-cellular section |
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| Affiliation: | 1. The College of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo 454000, China;2. The Key Laboratory of Bionic Engineering (Ministry of Education, China) and the College of Biological and Agricultural Engineering, Jilin University (Nanling Campus), Changchun 130022, China;1. Department of Engineering Mechanics, Applied Mechanics Laboratory, Tsinghua University, Beijing 100084, China;2. China Longyuan Power Group Corporation Limted, China Goudian, Beijing 100034, China;3. Department of Mechanical Engineering, Purdue University, West Lafayette, 47907, USA;4. CSIRO Energy, 71 Normanby Road, Clayton, VIC 3168, Australia |
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| Abstract: | A numerical procedure is applied to determine the torsional and flexural properties of multicellular cross sections which are used frequently in modern curved highway bridge girders. The shear flow in multi-cellular sections becomes indeterminate, thus requiring as many compatibility equations as the total number of cells. An algorithm to evaluate these indeterminate shear flows has been developed and incorporated into a computer program. Essentially the determination of cross-sectional properties involves various integrations. The computer program developed performs these integrations. Two hypothetical multi-cellular sections are examined and numerical results are presented along with input preparation. It is shown that any arbitrary cross section of complex geometry can be analyzed. |
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