混凝土粘结面粗糙度评价的功率谱法分维  

FRACTIONAL DIMENSION OF POWER SPECTRUM METHOD FOR EVALUATING SURFACE ROUGHNESS OF BONDING CONCRETE

作　　者：袁群[1] 韩菊红[1] 于跃海[1] 

机构地区：[1]大连理工大学土木工程系,大连116024

出　　处：《工业建筑》2001年第2期4-5,23,共3页Industrial Construction

基　　金：国家基础性研究重大项目攀登计划B!(课题编号 :5 2 );国家自然科学基金资助项目! (编号 :5 97780 45 )

摘　　要：通常混凝土粘结面的形状极不规则 ,其表面的分维仪测值是一随机过程。在频率域内 ,该随机过程的功率与圆频率有负幂率关系 ,说明粘结面具有分形现象。对粘结面采用灌砂法和功率谱法分维对比分析后认为 ,功率谱法的分维值及相应的截距可对粘结面大的波形起伏与粗糙点进行描述。The shape of the concrete bonding surface is very irregular usually,and its measured data by fractional dimension device is a stochastic process.In the frequency domain,the power of the stochastic process has a negative exponent relationship with the circle frequency,and it is shown that the bonding surface appears the fractional phenomena.Through the comparative analysis of the sand filling method and fractional dimension of power spectrum method,we can find that the great wave of the bonding surface and the roughness point can both be described with the fractional dimension number of power spectrum and its intercept.

关 键 词：混凝土 粘结面 粗糙度 建筑物 结构补强 

分 类 号：TU528[建筑科学—建筑技术科学]