- 摘 要
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(長安大學建工學院 西安 710061)
［提要］應用結構試驗方法和力學方法, 研究了輕鋼結構平臺次梁的受力和變形性能，獲得了10跨連續(xù)鋼平臺型鋼次梁加載跨跨中截面撓度的試驗公式和理論公式。借助軟件ANSYS對試驗結果和理論公式進行了驗證分析，揭示了平臺次梁的實際變形遠遠小于理論值，原因在于主梁對次梁的約束及鋪板參與次梁受力等。研究結果對新建結構的設計和在役結構的使用監(jiān)控有一定參考價值。
［關鍵詞］ 鋼結構 試驗分析 有限元方法 跨中撓度 多跨鋼梁
Test Study and Theory Analysis on Stress and Deflection of a Multispan Continuous Junior Beam in a Steel Floor/Fu Guangyao，Yuan Weining (Civil Engineering College of Chang'an University, Xi'an 710061, China)
Abstract:By means of structural test and theory analysis method,the stress and deflection of the junior beam of a steel structure floor are studied.The actual deflection value and theoretic deflection value on the middle section of ten spans continuous steel beam are obtained.FEM program ANSYS is used to check up and verify the theory and test formulary.The cause of the differences is revealed.This research is valuable for new structure design and supervision of old structure.
Keywords:steel structure; testing measure; finite element method; deflection; multispan steel beam*長安大學科技基金資助(21712004104)
