钢筋混凝土和部分预应力混凝土构件裂缝宽度有限元法分析

FINITE ELEMENT ANALYSIS OF CRACK WIDTH OF RC AND PPC MEMBERS

运用有限单元法理论,本文建立了钢筋混凝土和部分预应力混凝土构件裂缝宽度有限元法分析模型——复合裂缝模型。编制了非线性有限元分析程序——NAPRC程序。用NAPRC程序对16米部分预应力简支实梁进行了分析,与试验结果比较,表明用本模型所得的计算值有很好的精度。

This Paper gives a finite element analytical model of crack width of RC and PPC mem-bers (Complex Crack Model)based on finite element theory. A nonlinear finite elementanalytical program (NAPRC) is developed,by which a simply supported full size PPC beamwith a span of 16m is analysed. In comparison with the test results,it is concluded that themodel gives satisfatory predications.