Box-lead viscoelasticity composite energy dissipation device
A viscoelastic, energy-dissipating technology, applied in building components, earthquake resistance, building types, etc., can solve the problems of low initial stiffness and yield force, low energy dissipation capacity, etc., achieve large initial stiffness, maintain elastic recovery force, high The effect of fatigue resistance
Active Publication Date: 2018-08-17
TONGJI UNIV
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Problems solved by technology
Its main disadvantages are that the initial test stiffness and yield force are low, and the energy dissipation capacity is small.
Method used
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Embodiment 1
[0028] Embodiment 1: as figure 1 As shown, it is an embodiment of a square frame-lead viscoelastic composite energy dissipation device of the present invention, which mainly includes a connecting plate 1, a lead shearing element connecting plate 2, a lead shearing element 3, a thick-walled cylinder 4, a Energy block 5, viscoelastic material 6, lead core 7, central shaft sliding cylinder 8, central shaft 9, central shaft sliding cylinder connecting plate 10, triangular prism support 11.
[0029]Firstly, the square frame-lead viscoelastic composite energy dissipator is placed in the middle of the beam-column support with X-shaped support. The energy-dissipating frame 5 and its internal components are connected through a connecting plate, and the connection method is welding, and additionally add two upper and lower bolts and fixation positions. The energy dissipation frame 5 is connected with the external support through four connecting plates 1 . The lead shear element 3 is c...
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The invention relates to a box-lead viscoelasticity composite energy dissipation device. The box-lead viscoelasticity composite energy dissipation device mainly comprises a connecting plate, two leadshear elements, a thick wall cylinder, an energy dissipation box and the like. The energy dissipation box is formed by welding a box coiled by a low carbon steel plate. The box is internally providedwith a lead viscoelasticity energy dissipation element and the two lead shear elements. The lead viscoelasticity energy dissipation element and the energy dissipation box are connected in a welded mode and reinforced and positioned through bolts. The two lead shear elements and the lead viscoelasticity energy dissipation element are connected in a welded mode, and the two lead shear elements and the energy dissipation box are connected in a welded mode and reinforced and positioned through bolts. Under the action of an earthquake, energy dissipation damping is conducted by utilizing the combined action of elastic-plastic hysteresis deformation of the energy dissipation box, lead extruding hysteresis deformation of the lead viscoelasticity energy dissipation element, and shear hysteretic deformation of viscoelastic materials and the lead shear elements, the box-lead viscoelasticity composite energy dissipation device provides damping by utilizing various mechanisms, the large damping force can be obtained, and the good damping effect is achieved.
Description
technical field [0001] The invention relates to a square frame-lead viscoelastic composite energy dissipator, which combines a traditional square frame energy dissipator with a lead viscoelastic energy dissipating element and a lead shear energy dissipating element, so that the energy dissipator not only has a higher Initial stiffness and yield strength, while having good ductility and strong energy dissipation capacity and has good fatigue resistance and recovery ability. It belongs to the field of anti-seismic and energy-dissipating shock-absorbing technology of civil structures (including high-rise buildings, high-rise structures, bridge structures, etc.). Background technique [0002] Earthquake and wind disasters seriously threaten the survival and development of human beings. Since the birth of human beings, people have been fighting against these two natural disasters. With the improvement of science and technology and people's living standards, structural damping co...
Claims
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IPC IPC(8): E04B1/98E04H9/02
CPCE04B1/98E04H9/02E04H9/14
Inventor 鲁正马晨智马乃寅
Owner TONGJI UNIV