铁道科学与工程学报
鐵道科學與工程學報
철도과학여공정학보
JOURNAL OF RAILWAY SCIENCE AND ENGINEERING
2009年
5期
1-4
,共4页
预应力混凝土%静定桥梁%变形%全量形式矩阵分析%时变
預應力混凝土%靜定橋樑%變形%全量形式矩陣分析%時變
예응력혼응토%정정교량%변형%전량형식구진분석%시변
prestressed concrete%statically determinate bridge%deformation%total-type matrix analysis%time-dependent
基于小时段内混凝土应力线性变化的假定,将积分形式的混凝土时变本构方程在持荷时段内写成矩阵形式,提出了分析静定预应力混凝土桥梁弹性变形和时变变形的全量形式矩阵方法,建立了相应的矩阵方程.
基于小時段內混凝土應力線性變化的假定,將積分形式的混凝土時變本構方程在持荷時段內寫成矩陣形式,提齣瞭分析靜定預應力混凝土橋樑彈性變形和時變變形的全量形式矩陣方法,建立瞭相應的矩陣方程.
기우소시단내혼응토응력선성변화적가정,장적분형식적혼응토시변본구방정재지하시단내사성구진형식,제출료분석정정예응력혼응토교량탄성변형화시변변형적전량형식구진방법,건립료상응적구진방정.
Based on the assumption of linear change of concrete stress during short time interval,the integral time-dependent constitutive formula for concrete during load duration was written as a matrix equation,the total-type matrix approach to analyze elastic and time-dependent deformation of statically and determinate prestressed concrete bridges was put forward,and the analytical matrixes were established.
