摘要:
The reinforcing holder against vibrations has the vibrationproof performance further enhanced as compared with prior art so that a wooden building is not broken down even if strong vibrations are loaded by an earthquake, a typhoon or the like. The reinforcing holder against vibrations 1 comprises an L-shaped base member 2 formed by bending a plate and formed with curved and projecting parts 5a and 5b which are curved inward in intermediate parts of both piece parts 2a and 2b, a reinforcing member 3 formed by bending a plate and placed in contact with a bent part of the L-shaped base member 2, and absorbing members 4 formed of rubber material which has excellent elastic characteristics and water resistance and stopped at a plurality of locations of the L-shaped base member 2. When the reinforcing member 3 is placed in contact with the L-shaped base member 2, a clearance 10 is formed between a bent corner part 3c of the reinforcing member 3 and a bent corner part 2c of the L-shaped member 2.
摘要:
A system (10) for disconnection between horizontal elements (13) and supporting structure (12) of a building (20) providing for insertion between the supporting structure (12) and the horizontal elements (13) of the building (20) of one or more dissipative type flexible devices (14) comparable to a unit consisting of a spring (26) and a dissipator element (27) coupled in parallel. Said devices (14) are inserted between supporting frame and floor (13) and consist of small natural rubber bearings with high damping capacity, in which the rubber is reinforced with steel plates.
摘要:
Dispositif (1) apte à limiter l'amplitude du déplacement relatif de deux éléments d'une structure de génie civil et à absorber l'énergie de déformation de cette structure lorsque celle-ci est soumise à une sollicitation accidentelle. Le dispositif (1) comprend :
au moins une partie apte à subir une déformation plastique lors du déplacement relatif des deux éléments de ladite structure, des moyens de guidage de la déformation plastique de la partie apte à subir une déformation plastique, la partie apte à subir une déformation plastique et les moyens de guidage formant un élément monobloc.
摘要:
In a structure for installing a viscous vibration-damping wall 1, high-strength bolt hole portions for connection to a lower-floor girder 3 are provided in a central portion of a base plate 6, a pair of gusset plates 8 are disposed on both sides of the group of the high-strength bolt hole portions in such a manner as to be suspended from the base plate 6 down to a position at a short distance therefrom, and a pair of flange plates 9 are respectively provided with a pair of gusset plates 10. High-strength bolt hole portions for connection to the high-strength bolt hole portions and a pair of gusset plates for connection to the opposing gusset plates are embedded in a flange of the lower-floor girder 3, so as to connect the viscous vibration-damping wall 1 and the lower-floor girder 3. The viscous vibration-damping wall 1 is connected to an upper-floor girder 4 by directly connecting a gusset plate 17 fixed to the upper-floor girder 4 and an intermediate plate 18 of the viscous vibration-damping wall 1.
摘要:
Undesirable vibrations are controlled in a mechanical structure by confining the vibrations to one or more specified areas of the structure and then dissipating the confined energy by damping. Vibration confinement is achieved using a confinement device (26, 44, 64, 92, 1020, 1420, 1508 and 1608) which effectively applies both translational and torsional forces to the structure (20, 30, 60, 90, 1400, 1500 and 1602). The strength of the translational and torsional forces, and the position of the confinement device are chosen to select a vibrational energy confinement region (between X2 and X3), (30a, 90a, 1510 and 1610). Damping elements (30, 42, 66, 96 and 1422) concentrated in the vibration confinement region to dissipate the confined vibrational energy. Judicious selection of the confinement region permits the structure to avoid the transfer of vibrational energy to particularly sensitive portions of the structure, or to direct vibrational energy to a portion of the structure. Optimization procedures are presented for designing structures having optimized placement and selection of the vibration confinement device and damping devices.
摘要:
In the structure for reinforcing a concrete member and the reinforcing method of the present invention, a reinforcing sheet is arranged and joined to a various kinds of concrete member, such as column, beam, wall, floor, and the like, by applying the reinforcing sheet to the surface of the concrete member and attaching to the fixing anchors joined to the concrete member or the other concrete member surrounding the concrete member. The fixing anchor comprises a large amount of reinforcing fiber, and is obtained by bundling a part of the reinforcing fiber. The unbundled portion of the fixing anchor is spread along the surface of the concrete member. The reinforcing sheet is overlapped to the unbundled portion using resin adhesives. In addition, reinforcing fibers, such as carbon fiber, aramid fiber, glass fiber, and the like are preferably used as the material comprising the fixing anchor and reinforcing sheet. Thereby, the reinforcing member can be joined via the fixing anchor to the concrete members. Therefore, it is possible to securely join the edges of the reinforcing member, and reliably exert the reinforcing effects on the concrete member.
摘要:
This invention relates to an improved wall (1) for resisting lateral forces imposed on a building that incorporates the wall (1). Specifically, this invention relates to a wall (1) in a light-frame building having within it a sub-component specifically designed to resist lateral forces imposed on the building such as those caused by an earthquake or by wind loading. The wall (1) is formed with a bottom plate (3) that rests on the underlying structural component (2) of the building. A plurality of vertically-disposed studs (5) connect to the bottom plate (3), and a top plate (7) is supported by and connects to the vertically-disposed studs (5). A shear-resisting assembly (9) connects to the top plate (7) and the underlying structural component (2). The shear-resisting assembly (9) has top and bottom struts (17,18) and first and second chords (19,20) and a planar shear resisting element (10) connected thereto.
摘要:
Steel moment resisting frame (SMRF) connections between vertical columns (14) and horizontal beams (19) are for both original and retrofit building construction. The SMRF connection is a column tree assembly (13) consisting of primary trunk assembly (17) engaging secondary branch assembly (18). Primary trunk assembly (17) has vertical parallel gusset plates (25, 26) secured to vertical column (14) with flanges (27) at each beam-to-column joint location, and base plates (28) at one end of the column and a splice (33) at the other end. Secondary branch assembly (18) is secured normal to primary trunk assembly (17) between parallel gusset plates (25, 26). Secondary branch assembly (18) includes stub beam section (30) fitted with shear transfer plates (32) secured to the web of stub beam section (30) and to parallel gusset plates (25, 26). Plate (28) is secured to each flange of the stub beam (30) and parallel gusset plates (25, 26) to bridge the gap (31). Vertical shear tab plate (32) is secured to the web of stub beam (30).
摘要:
Steel moment resisting frame (SMRF) connections between vertical columns (14) and horizontal beams (19) are for both original and retrofit building construction. The SMRF connection is a column tree assembly (13) consisting of primary trunk assembly (17) engaging secondary branch assembly (18). Primary trunk assembly (17) has vertical parallel gusset plates (25, 26) secured to vertical column (14) with flanges (27) at each beam-to-column joint location, and base plates (28) at one end of the column and a splice (33) at the other end. Secondary branch assembly (18) is secured normal to primary trunk assembly (17) between parallel gusset plates (25, 26). Secondary branch assembly (18) includes stub beam section (30) fitted with shear transfer plates (32) secured to the web of stub beam section (30) and to parallel gusset plates (25, 26). Plate (28) is secured to each flange of the stub beam (30) and parallel gusset plates (25, 26) to bridge the gap (31). Vertical shear tab plate (32) is secured to the web of stub beam (30).