| 摘要 |
Damping arrangement for low, medium and high-rise structures (1) using bidirectional damping means (5) such as visco-elastic Gensui damping devices, placed between two parallel elements of the structure (1), such as a core (2) and a perimeter column (3), or between two cores. Oscillatory or other flexural or shear deformations of the structure (1) are damped by damping axial movements between the two elements (2, 3), and simultaneously damping orthogonal movements between the two elements (2, 3). Outriggers (6, 7, 8) are used to enhance the axial damping moment, and the bidirectional damping means (5) may be installed in pairs, working in opposition to each other to damp dynamic shear or flexural forces in the orthogonal plane. |
| 主权项 |
1. A building structure comprising:
a first structural element extending parallel to a vertical axis of the building structure, the first structural element being substantially self-supporting and susceptible of shear or flexural deformation, a component of the shear or flexural deformation being along a horizontal axis of the building structure, a second structural element, adjacent to the first structural element and extending parallel to the vertical axis, the first and second structural elements being such that a component of said shear or flexural deformation causes relative axial movements between the first and second structural elements parallel to said vertical axis at a first predetermined location along said vertical axis, a plurality of vertically spaced damping stages, each damping stage comprising a rigid outrigger element extending outward from the first structural element towards the second structural element, a plurality of biaxial or multiaxial dampers, each damper capable of damping along a first damping axis substantially parallel to said vertical axis and a second damping axis perpendicular to said first damping axis, the dampers being arranged pairwise, in vertically spaced pairs along said vertical axis, between the first and second structural elements, each pair of dampers comprising a first damper and a second damper arranged, vertically spaced, in a common region of the building structure, the first and second dampers being mounted between an outer part of each outrigger and the second structural element, so as to provide axial damping along said vertical axis and lateral damping along said horizontal axis, and such that, during said shear or flexural deformation of the first structural element in the common region of the building structure, the first damper is in one of tension (T) or compression (C) along one of its damping axes, while the second damper is in the other of tension (T) or compression (C) along one of its damping axes. |
