This book describes all aspects of cast-in-place concrete design and construction, and presents several innovative state-of-the-art techniques that will challenge the ways engineers have traditionally approached such tall building projects. Some of the important issues covered include: an in-depth discussion of construction loads, including material, shoring, and reshoring; new materials and techniques, including fibre-reinforced and high-strength concrete; structural analysis; alternate design methods. This book may be of interest to structural and construction engineers working on the design of tall buildings using cast-in-place concrete.
Longitudinal bar debonding allowed spread of yielding and prevented premature failure of reinforcements in UHPC-filled duct connections and grouted coupler column pedestal. The SMA-reinforced ECC column showed superior seismic performance compared to a conventional column in which the plastic hinge damage was limited to only ECC cover spalling even under 12% drift ratio cycles. The column residual displacements were 79% lower than CIP residual displacements on average due to the superelastic NiTi SMA longitudinal reinforcement, and higher base shear capacity and higher displacement capacity were observed. The analytical modeling methods were simple and sufficiently accurate for general design and analyses of precast components proposed in the present study. The proposed symmetrical material model for reinforcing NiTi superelastic SMA was found to be a viable alternative to the more complex asymmetrical model.
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