Experiment Study Of Aseismatic Behavior On Structure Of Beam And Column With Dou-gong Brackets And Material Programming Of Wood

The main research object is the selection of a single column, single crossbeam-column frame structure and the vibration of the beam-column structureincluding the Dou-Gong.Also these reaction and the overall structure has thecharacteristics of friction energy dissipation in the process of vibration damping.By setting different material damping and increasing the damping ofmaterials, the friction between molecules or metal grain in materials willincrease.The stiffness of material is larger and its compliance is small.Thedamping energy dissipation ability of the single column system will be reducedwith the increase of damping ratio.The limit state of Beam-column structure is analyzed by setting thedifferent vertical load.When the horizontal displacement of the structurecontinues to increase, the gravity effect of the structure will be more and moreobvious. At this point,the structure will ongoing horizontal displacement underits own gravity and additional forces. When the displacement reaches a certainlimit, the structure will have fallen since the stability of the structure have collapsed.Through the analysis of the Dou-Gong bracket and beam-columnstructure,the hysteresis curve corresponding becomes more full when thevertical load increases.It shows that the structure of the energy dissipation isstronger.When the same horizontal displacement occurs, there will be a gravitysecond order effect of concentrated mass point and has additional bendingmoment on the bottom of the column.The structure will still continue to increasethe horizontal displacement.Wood is a material of complex and showing the anisotropicl, also it hasthree directions of different mechanical properties. Combining the theory ofdifferent materials mechanics applicable to yield, after comprehensive analysis,the Yamada-Sun which give theoretical derivation and the rule of thedevelopment of wood plastic flow is obtained.Combining the mechanics theoryand the Fortran programming language, it compile a subroutine of Abaqusmaterial to show the mechanical properties of wood.