Numerical Modelling of Steel Angles with Double-Shear Splice Connections Under Compression
Source abstract
Abstract
Steel angles connected by bolts have been commonly used in transmission towers. Due to the limited length of steel angles, double-shear splice connections are generally adopted to connect steel angles in main members. The stability of this type of members remains unclear as a result of the presence of discontinuity and is difficult to evaluate using existing design methods. This study presents numerical simulations of steel angles with double-shear splice connections under axial compression. Numerical models are established for discontinuous steel angles and validated against published experimental results. Parameters including splice steel ratio, discontinuity location, slenderness ratio, and width-to-thickness ratio on the axial compression load capacity of steel angles are evaluated. A design equation is proposed based on numerical results to quantify the axial load capacity of discontinuous steel angles. Comparisons with experimental data and values calculated using Chinese design code demonstrate that the proposed equation can predict the ultimate load capacity of discontinuity steel angles with better accuracy than the design method in the Chinese code. Finally, a design equation is further simplified by eliminating the effect of parameters with limited influence on ultimate load under axial compression.
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Research context
OpenAlex topics: Structural Load-Bearing Analysis · Structural Analysis and Optimization · Seismic Performance and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Energy Development Research Institute, China Southern Power Grid, No. 11 Kexiang Road, Science City, Guangzhou 510663, China
State Key Laboratory of Safety and Resilience of Civil Engineering in Mountain Area, Chongqing 400045, China
School of Civil Engineering, Chongqing University, Chongqing 400045, China
Southwest Electric Power Design Institute Co., Ltd., China Power Engineering and Consulting Group, 16 Dongfeng Road, Chenghua District, Chengdu 610021, China
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