摘要
以钢筋混凝土受弯构件在重复荷载作用下的试验研究为基础,研究了钢筋混凝土受弯件受压区的应变随重复荷载作用次数增加而增大的变化规律,分析研究了钢筋混凝土受弯构件在高周重复荷载作用下刚度和裂缝宽度的变化,给出了刚度和裂缝宽度的计算方法,计算结果和试验实测结果符合良好,证明这一计算模式是可行的。
Based on the fatigue tests,a method for predicting the rigidity re-
duction and the development of crack opening of reinforced concrete flexural mem-
ber under repeated loading is proposed in this paper. In the method, the incre-
ment of the strain of concrete in the compressive zone, the initial rigidity and
crack opening are used as parameters. The calculated results fit the test data well.
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
1991年第1期65-71,87,共8页
China Journal of Highway and Transport
关键词
受弯构件
重度荷载
刚度
裂缝宽度
Flexural member
Repeated loading
Rigidity
Crack opening
