Simplified Design Method For Structures Equipped With Energy Dissipation Devices And Its Applications

With earthquakes frequently happening at home and abroad,the damping design of energy dissipation structures are recognized by more and more people.Especially with the "Code for seismic design of buildings(GB50010-2010)","Dampers for vibration energy dissipation of buildings(JG/T 209-2012)",and "Technical specification for seismic energy dissipation of buildings(JGJ 297-2013)" updated and published,which provides the basis for energy dissipation earthquake-reduction design.Basing on the basic principle of energy dissipation damper design,this paper introduces the working principle and application cases of the various energy dissipation.And this paper introduces the classification of energy dissipation,it can be divided into the speed type enegy dissipation and displacement type energy dissipation,and emphatically introduces the mild steel coupling beam shear energy dissipation and energy dissipation.Finally the author describes the whole designing process with a practice project,Inner Mongolia,which is carried out by the author.In practical engineering application,the selection of damping scheme is selected by the method of the equivalent stiffness.Based on the project structure situation of judgment and trial,finally choose sheer panel damper of low-yield-strength steel and coupling beam damper for energy dissipation design.Secondly,this paper adopts PKPM software structure to execute elastic analysis and static elastoplastic analysis,and the calculated results were compared.Finally,the dynamic elastic-plastic time history analysis is executed to analyze the performance of the structure.Through the comparison and analysis of the calculation results,the energy dissipation damping structure in a maximum interlayer displacement Angle of static elastoplastic analysis has been effectively reduced,met the "code for seismic design of buildings(GB50010-2010)" limit requirements for 1/100 frame-shear wall structure;At the same time,the plastic interlayer displacement Angle of structure is reduced,proves that the energy dissipation function of energy dissipation device.The final number of beam plastic hinge structure also is decreased significantly.In addition,in this paper,the mild steel coupling beam shear energy dissipation device and experimental performance of energy dissipation are studied,respectively,to cancel the yield,yield displacement and ultimate displacement and limit parameterswere tested,and through the reciprocating loading experiment,recorded the load of energy dissipation device-shear deformation hysteresis curve,and prove that the size of the energy dissipation of energy dissipation capacity.Finally through the comparison between results of the experimental data,proving that the energy dissipation performance is good,completely meet the needs of the engineering performance targets and performance requirements of the specification requirements.Finally,the design and calculation of the connection node is briefly described.By connection of energy dissipation connection board,plywood,and embedded parts,connecting plate in energy dissipation device and embedded plate welding respectively,then splint connected by high strength bolt,ensure energy dissipation device can realize the function of replacement after the quake.Embedded plate and concrete way of connection USES embedded bar or steel.