Variable-height bending shear type eccentric support energy dissipation beam and eccentric support structure
A bending shear, eccentric support technology, applied in building components, building types, earthquake resistance, etc., can solve the problems of low seismic performance, ability to dissipate seismic energy, insufficient plastic deformation of energy dissipation beams, etc., to improve Energy dissipation effect, effect of improving seismic performance
Inactive Publication Date: 2018-08-17
STATE NUCLEAR ELECTRIC POWER PLANNING DESIGN & RES INST CO LTD
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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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[0059] 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.
[0060] In the first aspect, the embodiment of the present invention provides a variable-height bending shear type eccentrically supported energy-dissipating beam, such as figure 2 shown, combined with Figure 4 , Figure 5 , the eccentrically supported energy dissipation beam includes: an upper flange 11 , a lower flange 12 , a web 13 , and a transverse stiffener 141 . Wherein, the web 13 and the transverse stiffener 141 are vertically arranged; and, the web 13 and the transverse stiffener 141 are simultaneously connected to the bottom surface of the upper flange 11 and the top surface of the lower flange 12 . Wherein, the web 13 includes: a first zone 131 , a second zone 132 , and a third zone 133 connected sequentially along the l...
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The invention discloses a variable-height bending shear type eccentric support energy dissipation beam and an eccentric support structure, and belongs to the technical field of steel frame support structures. The energy dissipation beam comprises an upper flange, a lower flange, a web plate and a transverse stiffening rib. The web plate and the transverse stiffening rib are perpendicularly arranged and simultaneously connected with the bottom surface of the upper flange and the top surface of the lower flange. The web plate comprises a first area, a second area and a third area which are sequentially connected in the length direction of the energy dissipation beam. The height of the second area is less than that of a web plate of a non-energy-dissipation beam. The upper flange and the lower flange are matched with the web plate in structure. The width of the upper flange is less than that of an upper flange of the non-energy-dissipation beam. The width of the lower flange is less thanthat of a lower flange of the non-energy-dissipation beam. By arranging the second area with the low height on the web plate, after the two ends of the energy dissipation beam are subjected to bendingplastic deformation, the middle of the web plate can continue to be subjected to shear plastic deformation, the energy dissipation effect is improved, and anti-seismic performance is enhanced.
Description
technical field [0001] The invention relates to the technical field of steel frame support structures, in particular to a variable-height 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 colum...
Claims
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IPC IPC(8): E04B1/98E04H9/02
CPCE04B1/98E04H9/021
Inventor 黄友强黄筱烜周楠陈世玺严家祥何昭仁刘成军李鸿维
Owner STATE NUCLEAR ELECTRIC POWER PLANNING DESIGN & RES INST CO LTD