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