Several Questions Of The Research On The Structure Of Bamboo Bridge

Bamboo qualitative material is a new type of anisotropic materials, and its stress isobviously different from the previous concrete bridge, the mechanical properties and thewooden bridge is similar.New bamboo qualitative material is very sensitive to temperature, although theengineering of structures is generally at the elastic work stage. we consider thetemperature under the action of anisotropic bamboo qualitative material of nonlinearphase analysis. First, the bamboo qualitative material production process now can’tsatisfy the requirement of the bridge project， and complex structure of themanufacturing process is hard, we use T beam as the basic model for analysis, but theanalysis method and the other section was similar, but the conclusion to a certain extentas long as a little change can be applied in the box section. In this paper,the dimensionof the web is changed, calculation and analysis of multiple model is established, lastly, arelatively suitable size for subsequent work research analysis, the finite element modelanalysis of the project, we discussed some reflect anisotropic material and isotropicmaterial essential differences, such as anisotropic material how to convert isotropic,what is their direct relationship. Although this conversion is approximate, but accordingto our analysis, accuracy is very high. In the absence of high precision finite elementprogram can use a simple approximation method will be equivalent for isotropic toanisotropic processing. And, of course, in addition to this method, there are otherequivalent methods we should continue to study in order to achieve the purpose ofsimplified calculation. We also studied the anisotropic material is meet the concept ofload transverse distribution.A core part of this thesis is qualitative and quantitative research, including thematerial nonlinearity, and creep. How to effectively reduce the influence of temperatureon the structure of bamboo qualitative is our work, and solution implementation inpractical engineering structure.