STRESS RELEASE SYSTEM FOR REPAIRING AND REINFORCING STEEL STRUCTURE CONNECTION

摘要

the present invention is a steel member joint repair, reinforce the tensile stress relief system for dead on about that, flat on both sides receiving in which a plurality of holes 15 are formed in the iron plate 11, the rod insertion hole in the center (14) is formed and the backing steel plate (11) pressure iron plate 13 and which is provided on one side of the one side, the iron plate pressure ( 13) on both sides of the pressure griddle 13 for supporting a steel plate being made of a support 12 which is welded to a steel plate to the pedestal 11, the bracket 10, and; The threads are formed on both sides of PC steel bar (16) provided; And a nut (18) is coupled to one side of the threaded PC steel bar (16); And special nut (19) in which a plurality of fastening holes (19a) are formed on the outer peripheral surface is coupled to the other side periphery of said PC threaded bar (16); Provided to secure the bracket 10 to the flange (1) and the washers 21 and the nut 22 is fastened is known of high strength bolts (20) and; Cylindrical body 24 is provided, the straw 25 is moveable by a hydraulic pressure to one side of the body 24 is provided, which penetrate into the inside of the body 24 at the central portion of the straw (25) center hole 26 is formed, the hydraulic inlet (27) is provided with a center hole jack 23 and to one side of the straw (25); The center hole jack 23 and the bracket to secure the space between the opening 10 of the pressure iron plate (13, 29) are formed on the outer peripheral surface side, to support the end portion of the jack center hole jack 23 mounting portion 30 is formed jack stand (28); The thread is formed on both sides, the center hole jack 23 and the connecting rod 31 and is provided to connect the PC steel bar (16); A plurality of holes in the outer circumference tank for delegation (32a) is formed on the inner peripheral surface, the threads formed on the peripheral, the PC steel bar (16) and the connecting rod 31, a connection is provided to connect to the socket (32) and; The connecting rod 31 and the straw 25 which is provided so as to be supported firmly connecting rod fixing nut to the tip 33 of the center hole jack 23; The special nut (19) fitted with the pressure in the tank delegation hole (19a) (32a) formed on the outer circumference of the connection socket (32) which is provided to tighten or solve the special nut 19 and the connection socket (32) characterized by comprising a rod (34). ; invention steel member connection maintenance, a further feature of the dead load tensile stress relief system for reinforcing the said flanges in order to install the bracket (10), ( 1) After the completion of the high-strength bolt hole repair (2) such that the flange reinforcement is perforated in (1) is coupled to the upper and lower surfaces of the high strength bolts 20 and nuts (the flange (1) by tightening of 22), on both sides a plurality of fastening holes (35a) is characterized in that the reinforcement is formed of iron plate 35 is further provided. ; Thus, the bracket so that the defect of the structure symmetrical to the flange (1) of the generated connection ( 10) is provided, and the bracket 10 to the PC steel bar (16) is installed, connected for PC tension bar (16) on one side of the PC steel bar (16) the socket 32, the jack stand 28, the center Jack holes 23, a connecting rod lock nut 33 is installed and introduced in the flange (1), as the introduction of the compressive stress of the tensile stress by as much as the size of a PC steel bar (16) by a PC steel bar strain 16 a tensile stress PC steel bar (16) is fully shared flange (1) is removed the tensile stress is introduced in the flange (1) of the connection in a secure state the tensile stress is removed, introduced into the conservative, reinforcement may be made and the configuration of the tensile stress relief system is relatively simple, and its installation and disassembly can be done quickly and easily with the installation because the event who, unlike conventional steel member joint repair, as well as the reduction of the construction period of the reinforcement, the breakthrough of the cost This reduction has the advantage of including possible termination.