New Type Of Viscous Dampers In The Application Of The Engineering Reinforcement

Earthquakes are a devastating sudden natural disaster that seriously threatens human life and property.At the same time,due to the previous socio-economic level constraints and imperative laws and regulations,there is a large number of not considering the seismic fortification,or considering the seismic fortification but the seismic fortification target is relatively low and the seismic functional considerations of the building.At present,the reinforcement technology of viscous dampers is popular in the civil engineering industry,but most of the viscous dampers in the existing buildings are mostly in theoretical research or pilot projects.The designer does not understand the working principle of viscous dampers,resulting in engineering design staff stick Stagnation dampers reinforcement design difficult to start.Therefore,it is very important to study the variation law of viscous damper parameters and the method of seismic strengthening of viscous damper.In this paper,viscous dampers are used as the main research object.In view of the shortcomings of the traditional viscous dampers,the dampers are improved and innovated.Then,the damping and damping coefficients of the viscous dampers are studied Finally,a structral analysis model is established with an actual seismic reinforcement project,and the design of the viscous reinforcement of the viscous damper based on the performance of the reinforced concrete frame structure is carried out.The main work and achievements are as follows:(1)The traditional viscous damper is improved.In the traditional dampers based on the metal seal and damping rods to improve the innovation,metal seal innovation to reduce the traditional damper rubber seal friction energy consumption too many defects;damping rod innovation can be flexible and easy to viscous dampers Mechanical performance control.(2)Dynamic Characteristics of New Type Viscous Dampers.Experimental results show that the new viscous damping apparatus has a good performance of energy consumption.In addition,it is also verified that the viscous-displacement curve and the fitting damping force formula of the 20T and 60T models are selected.The innovation of the new viscous dampers is successful and feasible.(3)Simulation of viscous fluid damper.By comparing the results of the simulation model with the experimental results,the correctness of the simulation model is verified,and the simulation model can be used as the reference model.(4)The damping index and the variation coefficient of damping coefficient of new viscous dampers were investigated.The change of damping index and damping coefficient in the damping force calculation formula of viscous dampers was carried out by changing the viscosity of the silicone oil,the number of damping holes,the ratio of the pore diameter to the hole length and the opening angle of the damping hole,and comparing the test and simulation In the two cases,the variation rule is consistent,and it is found that the variation of the parameters under the two methods is almost the same.According to this rule,it can help to clarify the inherent energy dissipation mechanism of the viscous dampers.(5)Design of Seismic Reinforcement Based on Performance Based on Viscous Dampers for Existing Existing Buildings.Combined with the domestic seismic code,the finite element analysis of viscous dampers is carried out by arranging 16 viscous dampers.The damping effect of viscous dampers in seismic strengthening is discussed.The results show that the viscous dampers can be effective Reduce the seismic response of the structure under three kinds of earthquakes,and meet the performance requirements of the owners in the specification.