Research On The Design Method Of Energy Dissipation Substructure With Herringbone Bracing

Herringbone brace type damper connection form in the current widely used in practical engineering,but the current rules and local regulations is not uniform,clear and safe in the theory of herringbone brace type energy dissipation substructure design and checking calculation method,and in the "technical specification" building energy dissipation damping specific provision: beam,column,wall and other artifacts in energy dissipation should be carried out in accordance with the important component in the design of substructure design,in the design shall ensure that meet the rarely met earthquake effects and other load effects of standard value is less than the ultimate bearing capacity of the substructure component;The joints and members of the substructure should be checked for the section bearing capacity under the action of the damping force caused by the energy dissipator under the limit displacement and velocity.Before the main structure reaches the limit state,the energy dissipating substructure will not be unstable or node failure.In short,it is necessary to ensure that the substructure will not be damaged first when the damper reaches the limit damping force.Cancellation based on team ever substructure elastic design method to the study of the theoretical derivation,in this paper,the herringbone energy dissipation brace type substructure derivation of elastic design method research,explore the herringbone substructure elastic brace type energy dissipation design of specific formula and application method,which is under the elastic analysis of persons involved to word energy dissipation brace type substructure in the design and calculation,and considered in the seismic grade given at the same time improve the ductility and bearing capacity of substructure components,and through the engineering examples,compared to verify the feasibility of the elastic design method,optimized the herringbone type energy dissipation substructure theory design method.This article adopts the method of theoretical derivation and engineering case validation of herringbone brace type energy dissipation formula derivation and validation of substructure,considering the herringbone support continuous arrangement is plan,layout,etc.A total of 18 kinds of engineering of the common people words hold type damper link decorate a form,using structural mechanics theory analysis is compared with ETABS program software modeling damper under different decorate a form is derived when the output power for the unit for the additional internal force of structure;In addition,the paper summarizes the additional internal forces on the substructure when the damper's output is unit force under the similar arrangement,and adds the application of the substructure elastic design formula to the herring-type braced energy dissipating substructure.At the same time,the value of ultimate bearing capacity of substructure members under a total of 20 working conditions is considered under 4 seismic grades and 5 design criteria.The theoretical source and specific value of the elastic amplification coefficient are given.Generalization of energy dissipation brace type elastic design of substructure components and node calculation formula,gives the herringbone is validated by practical engineering case calculation and the design of energy dissipation brace type substructure,the calculation process,the energy dissipation brace type of engineering in word substructure component bearing capacity to carry on the design and calculation,and the application of small earthquakes elastic design criterion of herringbone energy dissipation brace type substructure engineering elastic-plastic analysis,to verify this method is applied to design of herringbone support formula structure has good seismic performance,and can guarantee the substructure not reaches the limit damping force damage occurred before the damper,Then for the engineering application of xinjiang region code of seismic design method to design a set of substructure cross section,and extract the engineering elastic-plastic analysis under severe earthquake substructure internal force,plus the damper limit damper damping force and the rarely met earthquake output difference for additional function structure compared with substructure ultimate bearing capacity.In order to discuss whether the substructure designed by this method can ensure that the substructure will not fail before the damper reaches the limit damping force.The results of elastic-plastic analysis can not guarantee the safety of substructure.This paper demonstrates the safety and reliability of the checking method for the elastic design of the hermetic brace energy dissipating substructure.