The Energy Dissipation Capability Research Of Clapboard-type Steel Lead Combination Energy Dissipater

Metal energy dissipater is a kind of dampers, because its metal elastic-plasticdeformation performance can consume seismic energy effectively and produce easily, ithas a broad prospect of application. Metal energy dissipaters have mild steel energydissipater, low yield point steel energy dissipater, lead damper, etc, in view of a singlematerial developed energy dissipater material performance limitations, more researchersfocus on under the same principle of energy consumption, the use of multiple energydissipation components working together to realize energy consumption.Firstly, this paper, by using lead and steel’s plastic deformation properties, designsthe clapboard-type steel lead combination energy dissipater. This thesis based on itsstructure characteristics and energy dissipation principle, establishes the finite elementmodel, and then uses the ANSYS software to carry on the numerical simulation analysis.It studies the influence of the design parameters including lead body number, lead bodyheight and lead body width on the combination of energy dissipater’s hystereticperformance and energy dissipation capacity by using the orthogonal test method todesign the25groups of test. On this basis, the important parameters of clapboard-typesteel lead combination energy dissipater is implemented the regression analysis, andestablished a simplified calculation formula. The test results show that the energydissipater hysteretic curve is full, and it has a stable performance of energy consumption.In a certain range, the energy dissipater initial stiffness and post-yield stiffness decreasealong with the lead body height increasing and increase along with lead body widthincreasing.Secondly, based on ANSYS simulation hysteretic curve, double linear restoringforce model and Bouc-Wen model are established and carried on the contrast to analysisthe advantages and disadvantages of two models, the most appropriate restoring forcemodel will be obtained at last.Finally, this energy dissipater is put into12layers reinforced concrete framestructure, using ETABS structure analysis software to simulate and analyze, which adopts El Centro and Taft earthquake waves, in order to verify energy dissipater’s effect, thenfurther, the layout in the structure of energy dissipater is compared to choose the bestmethod. The results showed that by adding the energy dissipater, the layer displacementand layer shear of the structure significantly lessen compared with original structure, andthe damping effect is obvious.