Numerical investigation of concrete-filled multi-planar CHS Inverse-Triangular tubular truss
作者： Ran Feng , Yu Chen , Shengwei Gao , Wei Zhang
DOI: 10.1016/J.TWS.2015.03.030
关键词: Engineering 、 Chord (geometry) 、 Span (engineering) 、 Boundary value problem 、 Truss 、 Truss bridge 、 Numerical analysis 、 Finite element method 、 Flexural rigidity 、 Structural engineering
摘要: This paper describes a numerical investigation of concrete-filled multi-planar circular hollow section (CHS) Inverse-Triangular tubular truss using finite element analysis. The configuration specimens is Pratt with symmetric geometry, loading application and boundary conditions by filling the concrete in top chord members only. material geometric nonlinearities were carefully incorporated models. failure modes, load carrying capacities overall deflections all obtained from nonlinear models calibrated against corresponding test results for validation. Good agreement between experimental analysis was achieved. Therefore, an extensive parametric study 256 carried out verified to evaluate effects main influential factors including cross-section dimensions CHS tubes, strengths filled critical non-dimensional parameters on strength behaviour truss. optimum span height ratio (L/H), joint spacing (L/S) width (H/W) proposed this economic design
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