Inter-Tech Engineering Inc. COLA

CCAP is the only existing software which incorporates the proper analytical models that generate the required input parameters for seismic analysis using DRAIN-RC

CCAP

CCAP-Column Capacity Analysis- was developed to analyse the inelastic behaviour of reinforced concrete columns. It can also be used as general reinforced concrete member analysis. It provides input data for DRAIN-RC. Inelastic deformations of reinforced concrete members consist of three components; flexure, shear and anchorage slip. The shear component the member, with a high shear-span-to-depth ratio, usually forms only a fraction of total inelastic displacement. Unless a member is under-designed in shear, or falls into the short column category, the shear component can be neglected in inelastic displacement calculations. Members that are critical in shear exhibit brittle behavior, and are usually classified as non-ductile members. Deformations due to anchorage slip, on the other hand, are direct consequences of flexural response, and cannot be ignored in certain members where axial compression due to gravity loads is low. Analysis of reinforced concrete members requires proper material models, such as confinement, anchorage slip and buckling of longitudinal bars; consideration and modeling of inelastic hinges; and computation of all major components of response. This can be achieved by employing the CCAP computer software. CCAP was developed by ITE to predict the inelastic force deformation relationships. This program computes deformation capacities of reinforced concrete column members under constant axial load and monotonically increasing lateral force. The analysis starts at the sectional level, through a moment-curvature analysis. Inelasticity and inelastic curvature distribution along column height are established, and deflections corresponding to lateral force capacities are calculated. Lateral deformations are found from deflections caused by flexure and anchorage slip. An internet version of this program will available for demonstration proposes in the new year!

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