Planar frame models considering system‐level interactions of a two‐story low‐damage concrete wall building

A system-level shake-table test of a two-story low-damage concrete wall building was conducted in 2019. The consisted unbonded post-tensioned (UPT) walls with perimeter frames and different wall-to-floor connections to provide deformation compatibility. results highlighted that the measured lateral strength notably exceeded design value. This over-strength largely attributed compatibility deformations imposed on floor systems. Previous simulation from planar models also underestimated global response strength, so modified model developed improve accuracy by accounting for interactions. slab out-of-plane assessed using shell elements quantify their when subjected induced UPT uplift. In addition, unintended effects beam-to-floor connection were calculated. contributions included frame lumped rotational springs located at slotted-beam joints. Lastly, updated include flexibility energy dissipations bases based observations. Nonlinear time history analysis unidirectional loading cases demonstrated an improved calculation both local responses. When considering interaction models, absolute relative errors peak overturning moments reduced 35.4% 15.6% averagely longitudinal direction, 23.1% 14.1% transverse direction.