DORN AND HUELSE FOR CONNECTING COMPONENTS OF HIGH- AND CIVIL CONSTRUCTION.

摘要

1. Mandrel and sleeve for the absorbtion and transmission of lateral forces in the connection together of building elements in constructional and civil engineering works such as roofing elements, flooring elements, ceilings, walls, buttresses, shoring walls or parts thereof with each other or with other building elements, for which purpose the sleeve is to be embedded and secured in the one building element and the mandrel in the other in such a way that the sleeve and/or the mandrel protrude from the surface of their respective building elements, and that the mandrel penetrates the sleeve, and that the sleeve and/or mandrel are furnished with a reinforcement embedding piece for the transmission of lateral forces to the surrounding building element, _c_h_a_r_a_c_t_e_r_i_s_e_d by the following features : a) the reinforcement embedding piece (12, 22, 32, 42, 15, 25, 35 and 45) exhibits a longtitudinal solid or hollow form with either a continuous smooth surface or surface furnished with protruding vanes or the form of vanes mounted singly on the mandrel and/or sleeve ; b) the reinforcement embedding piece (12, 22, 32, 42, 15, 25, 35 and 45) emcompasses the mandrel (14, 24, 34 and 44) and/or the sleeve (11, 21, 31 and 41) wholly or partly and embeds such within at least one portion of its own length ; c) the axial length of the reinforcement embedding piece (12, 22, 32, 42, 15, 25, 35 and 45) is less than that of the sleeve (11, 21, 31 and 41) and/or the mandrel (14, 24, 34 and 44) and is several times greater than the sectional diameter of the sleeve and/or mandrel ; d) the exterior surface area of the reinforcement embedding piece (12, 22, 32, 42, 15, 25, 35 and 45) is greater than that of the mandrel (14, 24, 34 and 44) and/or sleeve (11, 21, 31 and 41) encompassed by itself ; e) the reinforcement embedding piece (12, 22, 32, 42, 15, 25, 35 and 45) is mounted upon the mandrel (14, 24, 34 and 44) and/or sleeve (11, 21, 31 and 41) as an independant part in such a way that it extends thereon, in that section to be embedded in the building element, at least from the external end thereof inwards ; f) the reinforcement embedding piece is so shaped and attached that it is at least transversally to its length more flexibly resilient than the mandrel and/or sleeve themselves thus creating a flexible link with the building element and compensating in its longtitudinal plane the tensions set up by the lateral forces to be absorbed and transmitted.