Shaking table tests on seismic response of steel braced frames with column uplift

A Simplified Prediction Method for Seismic Responses of Building Frame Structures Allowed to Uplift

“…When the system starts uplifting from the contact phase, we need to change natural modes and frequencies to those for the uplift phase and recalculate qdi(0) and qvi(0) in Eq. (6), (7). When the system lands on the ground again, we need to reconstruct Eq.…”

“…Based on this knowledge, some rocking structural systems which are allowed to uplift during earthquakes intentionally have been proposed as one of seismic energy dissipation systems [For examples, [5][6][7][8][9][10][11][12][13]. In this study, we propose a simplified prediction method for earthquake responses of such rocking structural systems.…”

Seismic Response of Post-Tensioned Steel Rocking Concentrically Braced Frames With Various Aspect Ratios

“…Most studies of the SC-CBF concept or variants of the concept are limited to structures 6-stories or less in height [1,2,6,7,8,9,10]. This paper addresses the behavior of SC-CBFs at many aspect ratios, including structures up to 18 stories.…”

Seismic Performance of CAP1400 Nuclear Power Station considering Foundation Uplift

“…The single rigid body rocking response when fixed on a rigid foundation slab has also been studied [12]. The main effects of uplift of the structural foundation have been observed as follows: when the foundation slab undergoes uplift, it interacts with the base of the structure; structural foundation uplift is directly related to the overturning resistance of the structure; the uplift of the foundation has an obvious influence on the seismic response of the structure, and, under certain conditions, the damage to buildings subject to strong earthquakes may be reduced by uplift [13][14][15][16][17]. Notably, in previous research, the foundation slab is considered to be a rigid body in order to investigate the soil-foundation-structure interaction.…”