| Summary: | 碩士 === 國立交通大學 === 土木工程系所 === 102 === This study experimentally investigates the web crippling strength of cold-formed stainless steel channel sections with hole on the web under the end two-flange (ETF) loading condition. The channels were austenitic type 304 stainless steel. The holes were located at mid-depth of the webs. Flanges of the channel sections were not fastened to the supports. This experiment included 48 test specimens with different web slenderness ratio, hole diameter, and hole location. Finite element analyses were further conducted and the results were compared with test data. Test results demonstrated that the web crippling strength reduction factors were different for various specimens. According to the test results, strength reduction factors were proposed for the ETF loading conditions. Based on the strength reduction factors, the major factors influencing the web crippling strength of the cold-formed stainless steel with web hole was the hole size and, the next, the distance between the hole and the edge of the bearing. Both the proposed strength reduction factors and the test results showed that the larger the hole diameter and closer the hole to the bearing resulted in the more difficult to predict the strength reduction factor. The finite element analysis can effectively predict the specimen behavior and web crippling strength.
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