標題: | Compressive Column Load Identification in Steel Space Frames Using Second-Order Deflection-Based Methods |
作者: | Bonopera, Marco Chang, Kuo-Chun Chen, Chun-Chung Lin, Tzu-Kang Tullini, Nerio 土木工程學系 Department of Civil Engineering |
關鍵字: | Inverse problem;nondestructive test;load identification;space frame |
公開日期: | 1-七月-2018 |
摘要: | This paper presents a comparison of two static nondestructive methods used to assess compressive loads in columns of steel space frames. The first method requires knowledge of the flexural rigidity of the column under investigation, whereas the second method requires knowledge of the column's buckling load. In each method, short-term displacements are measured at given cross-sections along the member under examination, which is subjected to an additional transverse load. The two methods were verified in this study through experimental and numerical tests on a column of a small-scale space frame prototype with generic connections and end conditions. Estimations of compressive forces were generally reliable when second-order effects were accurately considered. In conclusion, the two methods can be successfully used to test steel space frames in a laboratory or under real conditions. |
URI: | http://dx.doi.org/10.1142/S021945541850092X http://hdl.handle.net/11536/145274 |
ISSN: | 0219-4554 |
DOI: | 10.1142/S021945541850092X |
期刊: | INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS |
Volume: | 18 |
顯示於類別: | 期刊論文 |