Abstract: The active control of tall buildings by aerodynamic appendages was proposed with the purpose of minimizing the control energy used to generate the control forces. In this control mechanism, the appendages generate the ...

Abstract: This paper investigates the feasibility of using the three active control mechanisms suggested in the literature for the control of tall buildings against wind forces. These mechanisms are the active tendon mechanism, the ...

Abstract: This paper shows the time‐delay effect on the distributed parameters structures controlled using direct velocity feedback. It is shown how the stability of the structure could be lost due to time delay. Two ways of time‐delay ...

Abstract: An experimental program to study the effect of impact on reinforced concrete slabs was carried out. The experimental program attempted to simulate the striking of flying objects at the center of a reinforced concrete slab ...

Abstract: The active control of a tall building, using tendons, is offered as an alternative control mechanism to that using an active tuned mass damper as this has been done in the Citicorp Center of New York City. It is shown that ...

Abstract: This paper attempts to select air optimum appendage design on the basis of the force or power needed to position the appendage. Three different appendage mechanisms were implemented to follow the same control law. It is ...

Abstract: In this paper, the nonlinear oscillations of a hinged‐hinged single‐span bridge due to midplane stretching is controlled by a combined active and passive control mechanism. The passive control enables one to shift to a ...

Abstract: This paper shows how to design the parameters of a passive control mechanism in order to keep bridges safe at all possible resonant frequencies caused by nonlinear effects due to midplane stretching. The control mechanism ...