Title:
Dynamic Effects of Panel Failure in Precast Concrete Shear Walls
Author(s):
O. A. Pekau, Z. A. Zielinski, A.W.K. Lee, and D. Hum
Publication:
Structural Journal
Volume:
85
Issue:
3
Appears on pages(s):
277-285
Keywords:
buildings; concrete panels; deformation; ductility; explosions; dynamic structural analysis; failure; joints (junctions); precast concrete; shear connectors; shearwalls; Structural Research
DOI:
10.14359/2630
Date:
5/1/1988
Abstract:
A computer-based investigation to study the dynamic response of precast buildings subjected to internal gas explosions is presented. A typical multipanel wall belonging to a prototype six-story precast building is subjected to local panel collapse. Results are examined in the form of envelopes of maximum response over the height of the building and in terms of dynamic response spectra. Ductility demand in vertical shear connectors, forces induced in ties, and deformation of the horizontal joints are studied. The data indicate large dynamic load factors for certain of the response parameters, particularly gap opening and shear slip in horizontal joints. Regarding the load-carrying integrity of the damaged structure, dynamic effects result in average load factors in the range 1.4 to 2.0 for the design of horizontal ties and vertical shear connectors.