Dual-unit bent shear-type eccentric support energy-dissipating beam and eccentric support structure
A technology of bending shear and eccentric support, applied in the direction of truss structures, girders, joists, etc., can solve the problems of low seismic performance, ability to dissipate seismic energy, insufficient plastic deformation of energy-dissipating beams, etc., to achieve Improved energy dissipation effect and improved seismic performance
Active Publication Date: 2018-09-14
STATE NUCLEAR ELECTRIC POWER PLANNING DESIGN & RES INST CO LTD
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Problems solved by technology
In this way, the plastic deformation of the energy-dissipating beam is not fully exerted, and its ability to dissipate seismic energy is not fully utilized, the energy dissipation effect is poor, and the seismic performance is not high
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[0049] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0050] The embodiment of the present invention provides a double-beam bending shear type eccentrically supported energy-dissipating beam, such as figure 2 shown, combined with image 3 , the energy dissipation beam includes: an upper flange 11 , a lower flange 12 , a web 13 , and a first stiffener 141 . The upper flange 11 is arranged parallel to the lower flange 12; the web 13 is arranged vertically to the first stiffener 141; noodle.
[0051] Wherein, the upper flange 11 is provided with at least one groove 151 recessed along the width direction of the upper flange 11 , and the lower flange 12 is provided with at least one groove 151 recessed along the width direction of the lower flange 12 . A through hole 152 not penetrating th...
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The invention discloses a dual-unit bent shear-type eccentric support energy-dissipating beam and an eccentric support structure and belongs to the technical field of steel frame support structures. The dual-unit bent shear-type eccentric support energy-dissipating beam and eccentric support structure comprises: an upper flange, a lower flange, a web, and first stiffeners; the upper flange and thelower flange are parallel to each other; the web is perpendicular to the first stiffeners; the web and the first stiffeners are connected the bottom of the upper flange and the top of the lower flange at the same time, wherein the upper flange is provided with at least one groove recessed along the width of the upper groove, the lower flange is provided with at least one groove recessed along thewidth of the lower flange, the web is provided with a through hole not running through the length of the beam; the grooves are in coincidence with the through hole in the length direction of the beam. The web is provided with the through hole, and therefore, after the two ends of the beam are bent and plastically deformed, the middle of the web may experience shear plastic deformation. The beam herein can dissipate seismic energy by bending plastic deformation and shear plastic deformation, thus providing improved aseismic performance.
Description
technical field [0001] The invention relates to the technical field of steel frame support structures, in particular to a double beam bending shear type eccentrically supported energy-dissipating beam and an eccentrically supported structure. Background technique [0002] In high-intensity earthquake areas, curved eccentric support structures can be set in steel structures to enhance the seismic performance of buildings. During an earthquake, the curved eccentrically braced structure undergoes local plastic deformation to dissipate the seismic energy and prevent the building from collapsing. Common curved eccentrically braced structures include: energy-dissipating beams, non-energy-dissipating beams, braced beams, and frame columns. Wherein, the non-energy-dissipative beam and the energy-dissipating beam are arranged in parallel, and the ends of the two are connected; the support beam is connected to the bottom surface of the non-energy-dissipating beam; the frame column is...
Claims
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IPC IPC(8): E04B1/24E04B1/98E04C3/07E04H9/02
CPCE04B1/24E04C3/07E04H9/021E04H9/024
Inventor 黄友强周楠黄筱烜陈世玺刘成军罗春霞何昭仁
Owner STATE NUCLEAR ELECTRIC POWER PLANNING DESIGN & RES INST CO LTD