Computer-based methods of analysis are also described and compared with test observations. The value of three-dimensional interaction diagrams in the design process is discussed. EXP n Exponent used in the biaxial bending design formula: For the. Results indicate that any among the four different methods of cross-sectional analysis are equally suitable for design purposes. Ultimate Strength Design/Analysis of Concrete Column Sections (PCA Column Design). In this research work, the existing test on reinforced concrete (RC) columns under biaxial load has been reviewed, underlying their main findings. Several methods of analyses that use traditional design aids are reviewed and the results are compared with data obtained from physical tests of normal strength concrete columns subjected to short-term axial loads and biaxial bending. The cyclic behaviour of reinforced concrete columns has been object of many experimental studies in the last years, mostly focused on the unidirectional loading of columns under constant axial load conditions. Strength analysis for biaxial bending is significantly more difficult, as moments are not applied in a plane of symmetry. The provisions of ACI 318 Section 10.2 are the basis for traditional design aids that show section strength when moments act in a plane of symmetry. Keywords: column reinforced concrete strength surfaceĬolumns with axial load causing biaxial bending are present in many different building structures. Title: Analysis and Design of Concrete Columns for Biaxial Bending-OverviewĪuthor(s): Richard W.
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