SHAKE TABLE TESTS OF REINFORCED CONCRETE FLAT PLATEFRAMES AND POST-TENSIONED FLAT PLATE FRAMES

摘要

A research study was undertaken to assess performance of flat plate systems constructed with slab shearreinforcement under dynamic loads. The research program consisted of shake table tests andaccompanying analytical studies of two, approximately one-third scale, two-story, two-bay, slab-columnframes. One specimen was constructed with reinforced concrete (RC) slab, whereas the other specimenconsisted of post-tensioned (PT) slab. The shear capacity of the slab-column connections was enhancedby the use of stud-rails for both specimens. Lateral drift ratios of approximately 3% and 4% wereachieved during testing for the RC and PT frames, respectively, with relatively little loss of lateral loadcapacity. Although slab-column punching failures occurred for both specimens, the degree of damageobserved was limited compared with tests on specimens without shear reinforcement under slowlyvarying loads. Good agreement between analytical and experimental results was achieved by using aninnovative modeling approach.