西华大学学报（自然科学版）
西華大學學報（自然科學版）
서화대학학보（자연과학판）
JOURNAL OF XIHUA UNIVERSITY(NATURAL SCIENCE EDITION)
2014年
5期
45-49
,共5页
Bayesian理论%收缩徐变%随机分析%长期变形
Bayesian理論%收縮徐變%隨機分析%長期變形
Bayesian이론%수축서변%수궤분석%장기변형
Bayesian theory%creep and shrinkage%stochastic analysis%long-term deflection
对钢筋混凝土结构长期变形进行随机预测研究。引入响应面技术拟合不能显式表示的结构响应；同时，将重点抽样技术引入Bayesian推断，以解决当似然函数为窄峰分布时数值计算困难的问题。通过对一个钢筋混凝土简支梁长期变形进行预测，验证本文方法的有效性。
對鋼觔混凝土結構長期變形進行隨機預測研究。引入響應麵技術擬閤不能顯式錶示的結構響應；同時，將重點抽樣技術引入Bayesian推斷，以解決噹似然函數為窄峰分佈時數值計算睏難的問題。通過對一箇鋼觔混凝土簡支樑長期變形進行預測，驗證本文方法的有效性。
대강근혼응토결구장기변형진행수궤예측연구。인입향응면기술의합불능현식표시적결구향응；동시，장중점추양기술인입Bayesian추단，이해결당사연함수위착봉분포시수치계산곤난적문제。통과대일개강근혼응토간지량장기변형진행예측，험증본문방법적유효성。
The research on stochastic prediction about long-term deflection of reinforced concrete structure is carried in the paper . The response surface approach is adopted to fit the structural responses which cannot be expressed explicitly .Meanwhile , through intro-ducing importance sampling approach into Bayesian inference , the numerical computational dilemma , encountered when the likelihood function has a sharper distribution , is overcome.With prediction of long-term deflection for a reinforced concrete beam , the accuracy of the proposed computational scheme is verified .
