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    • 8. 发明专利
    • SHEARING YIELD TYPE STEEL DAMPER
    • JPH11324399A
    • 1999-11-26
    • JP13708598
    • 1998-05-19
    • SHIMIZU CONSTRUCTION CO LTD
    • HORIE TATSUMIMASE SHINJITERADA TAKEHIKOYABE KIDO
    • E04B1/98E04H9/02
    • PROBLEM TO BE SOLVED: To improve the executability by preventing a corner part of a connection part from a shearing yield part to a mounting part from becoming a right-angled shape when the shearing yield part is joined on a support member in the mounting part. SOLUTION: A corner part 10 of a connection part 9 in which a steel damper 6 moves from a shearing yield part 7 to a mounting part 8 is not right-angled, but is like round shape to prevent weakening due to the concentration of stress at the time of machining and prevent cutting of the corner part 10 only due to the concentration of stress in the corner part 10 when earthquake occurs. Next, the damper 6 is joined on a support member by a high strength bolt through a bolt hole 12 while pressing the mounting part 8 by a pressing plate or the mounting part 8 and the connection part 9 are welded on the support member by fillet welding. Then, when a ratio of width to height of the yield part 7 is large, a rib led to the mounting part 8 is attached to both sides of the yield part 7 by fillet welding to prevent bending deformation which is independent of deformation between layers. Consequently, the deformation between layers due to horizontal force of earthquake can be securely transmitted to the shearing yield part and this steel damper can be manufactured inexpensively because its structure is simple and can be easily mounted because its weight is light.
    • 10. 发明专利
    • STEEL BEAM
    • JPH10169089A
    • 1998-06-23
    • JP33426596
    • 1996-12-13
    • SHIMIZU CONSTRUCTION CO LTD
    • HORIE TATSUMISATO TAKANORITERADA TAKEHIKOKANEMITSU TOMOMIHANZAWA TETSUYA
    • E04C3/02E04B1/24E04B1/58E04C5/00E04G23/02
    • PROBLEM TO BE SOLVED: To improve an aseismatic function by laying a deformation constraint member between upper and lower flanges at the end of a steel beam, so as to constrain the deformation of the steel beam, and forming the upper and lower sides of the member out of curved surface gradually parting from the flanges in a direction toward the center of the steel beam. SOLUTION: A deformation constraint member 5 for constraining the deformation of a beam 3 is provided at the joint of a post 2 and a beam 3 forming a skeleton 1, so as to be positioned in space enclosed with the upper and lower flanges 3a. and the web 3b of the beam 3. Also, one plane of the deformation constraint member 5 made of concrete is used as a fixing plane 5a for contact with the side of the post 2, and two planes at both sides of the member 5 are used as constraint planes 5b faced to the flanges 3a of the beam 3. Then, the constraint member 5 is formed to have curved surface A gradually parting from the flanges 3a toward the center of the beam 3, and laid on the beam 3 at both sides via the post 2. Thereafter, the constraint member 5 is jointed to the post 2 with a steel rod 7 and a nut 8. As a result, energy resulting from an earthquake, strong wind or the like can be efficiently absorbed, thereby substantially improving an aseismatic function.