The study of structures in engineering solid mechanics is very often requires the modeling of complexes structures composed of two parts of thin and thick structure elements. As examples is associated with the case of stiffener under a dome and the cooling tower of the nuclear power which is supported on massive supports. In the numerical analysis, this imposes the connection between two different types of finite elements, two dimensional element for thin structures and three-dimensional elements for solid structures. Knowing that solid finite elements contain only translational degrees of freedom, whereas the finite elements of thin shells includes nodal variables of rotations, and then the number of degrees of freedom are not compatible in the junction zone between these two types of structures. This obviously causes great difficulty in solving the problem numerically. The objective of this work is to present the development of a shell finite element with no degree of freedom of rotation that can be used for the modeling of these two different types of structures and can then easily solve the shell-solid junction problem. Validation tests of the developed element are presented and the results obtained are very encouraging.