The method of stress release system institution for repairing and reinforcing steel structure

摘要

the present invention is a steel member complement, reinforce the tensile stress relief system for dead on about how to install, flat receiving in which a plurality of holes 15 are formed on both sides of steel plate 11, the center of the rod insertion hole 14 is formed and the backing steel plate (11) pressure iron plate 13 which is provided on the side of one side, the pressure griddle 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 outer circumference tank for delegation hole (32a) is formed, which is threaded on an inner peripheral surface forming the peripheral, the PC steel bar (16) and the connection socket which is provided to couple to the connecting rod (31, 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 compensation, a further feature of the dead load tensile stress relief system installation method for reinforcing the flange in order to install the bracket (10), (1) after completion of the repair is high-strength bolt hole drilling (2) such that the reinforcing flange (1) to be coupled to the upper and lower surfaces of the flange (1) by tightening the high strength bolts 20 and nut 22, both sides reinforcing iron plate 35, a plurality of fastening holes (35a) are formed in is characterized in that further comprising a. ; Thus, the bracket so that the symmetry of the structure defect in the flange (1) of the generated connection 10 is installed, the bracket 10 is installed on the PC steel bar (16) are, PC steel bar (16) connected for PC tension bar (16) on one side of the socket 32, the jack stand 28, center hole jack 23, a connecting rod lock nut 33 is introduced into the installation flange (1) as the compressive stress of the tensile stress by as much as the size of a PC steel bar (16) by the tension rod PC 16 introduced that is to a tensile stress PC steel bar (16) completely 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 is made number and configuration of the tensile stress relief system is relatively simple, it is quick and easy installation and disassembly so that the installation can be done and who, unlike conventional steel member joint vent repair, as well as shorten the construction period of the reinforcement, the cost of construction There are advantages such as saving breakthrough becomes possible.