Numerical Simulation On Mechanics Characteristic And Seismic Performance Of Ancient Timber Buildings

This paper first introduces the Chinese ancient architecture wood waschosen as the three main reasons for building materials, wood rot, and easyto be destroyed by fire, creep and stress relaxation characteristics of themechanical properties of wood, longitudinal, radial and tangential are notthe same, the effect of knots in wood tensile strength, displacement ofwood load curve under cyclic loading. Describes the wood in theconstitutive equation of the elastic stage. The strength criterion of fivealternative wood after the elastic stage, can choose according to the actualneeds of the strength criterion of wood. The establishment of simple singlecolumn model in Solidwoks in the use of timber for the principle, carrieson the analysis according to the number of copies and the international unitof length meter conversion relationship between import ABAQUS.Contrast ratio under different seismic response of single particle damping,damping ratio has no damping seismic response to small; Seismic responsecomparison of different elemental point mass under seismic response, quality of large to small.The establishment of beam and column frame model, the beam tocolumn connection between the use of semi-rigid node has a dovetail joint,applying different vertical load and the same level of beam and columnframe reciprocating movement framework of load, the hysteretic curvesand skeleton curves, different vertical load under the framework ofcomparative stiffness and friction energy dissipation. Comparison ofdifferent damping ratio, beam column frame under horizontal earthquakeresponse in; comparison of different coefficient of friction, the seismicresponse of beam column frame.The establishment of beams Dougong structure model, set of twodifferent vertical load and reciprocating displacement load in the horizontaldirection, in contrast to the two loading hysteresis curve and skeleton curve.Three different material damping ratio under horizontal seismic loading,the seismic response of each model are similar, but the top of the reactionratio of beam and column frame reaction without brackets to small. Twodifferent friction coefficients of horizontal earthquake load, the frictioncoefficient of upper structure of large reaction. Between the brackets andpillars and marble polished conducive to earthquake.