The structure, proposed in the present work, belongs to, so-called, “bendingactive” systems. It comprises high-strength low-modulus initially straight beams. The beams, arranged in the radial direction, are supported by spreaders and steel cables underneath. Tensioning of cables results in substantial shape modification of the beams and turning the structure into a convex dome. The frame of the structure is investigated by means of the special computer program EASY. Uniform and non-uniform external loads are taken into account. Influence of flexible fabric membrane, attached to the upper chord of the frame, is analyzed.