抄録
This paper is theoretical and experimental studies to find the suitable shape of the stiffener ring in the case of eccentric connections. Four kinds of model specimens having different eccentricity and the different shape of the stiffener ring are planned. In each kind we test two types. One of them is filled with concrete, and the other is not. In consequence of experimental research, we can find the appropriate shape of the stiffener ring according to eccentricity. On the theoretical study, we substitute the stiffener ring for the statically indeterminate ring. And then we can obtain the values of the stresses of each point and the deflections of the stiffener ring by using the energy method. As the result, it is evident that the theoretical values of the stresses and the deflections of the stiffener ring approximate experimental them.