Energy-dissipation beam column node of buckling-restrained bracing
Technical field
The utility model relates to a kind of bean column node, is specifically related to a kind of energy-dissipation beam column node that is used for the construction steel structure field.
Background technology
Energy-dissipating and shock-absorbing be reduce at present major structure of construction under earthquake earthquake response and prevent one of effective means of its no collapsing with strong earthquake.The mode of energy-dissipating and shock-absorbing mainly contains two kinds: a kind of is by extra energy-consumption damper dissipation seismic energy is set, and the position that is provided with generally all is confined to (shown in Fig. 1~3) between the beam column standard width of a room in an old-style house, realizes power consumption (dissipative cell is seen energy-consumption shock-absorption device 1, viscous damper 3 and the anti-buckling energy-consumption supporting damping device 4 of Fig. 1~3) by the relative deformation of floor interlayer; Another kind is to form plastic hinge power consumption (as Fig. 4) by structural element (beam-ends) surrender.These two kinds of power consumption modes exist following problem respectively: at first, the building that has functions of use such as large bay or big door and window for some architectural requirements, this class power consumption mode that energy-consumption damper is set in the beam column standard width of a room in an old-style house will be restricted greatly, because can have influence on the normal function of use of building; Secondly, though second kind of power consumption mode can not influence the building function of use, but all find in the earthquake centre celestially in the northern mountain range earthquake of the U.S. in 1994 and the Japanese slope of nineteen ninety-five, the beam-ends plastic hinge energy consume mechanism of the rigid joint form (as Fig. 5,6) of traditional beam column edge of a wing welding can't be realized, tends at first take place because the beam-ends weld stress is concentrated the low-cycle fatigue fracture of weld seam.Based on this, people propose to adopt " dog bone type " node (as Fig. 7,8) again, and local weakening so that weakened zone, cross section is transferred to by the beam-ends position while welding in the plastic zone carried out in the beam-ends zone.Though the mode that shift this beam-ends plastic zone can be avoided the beam-ends welding seam breaking, still exist a major issue not consider, that is exactly the reparation problem after the shake.For the frame construction that adopts this type of " dog bone type " node, after big shake, after the engineering staff must change again to the Vierendeel girder that the damage of beam-ends plasticity takes place, original building can normally come into operation, both brought difficulty to shaking the back reparation, can cause the massive losses of national economy again, therefore this mode by the power consumption of agent structure member (beam-ends) development plasticity is very uneconomical.
The utility model content
The purpose of this utility model provides a kind of energy-dissipation beam column node of buckling-restrained bracing, to cause building function of use limited by extra energy-consumption damper dissipation seismic energy is set to solve, and form the plastic hinge power consumption by structural element (beam-ends) surrender and cause shaking problems such as back reparation difficulty.Adopt the technical solution of the utility model neither to influence the building function of use and be easy to shake the back reparation again.
The utility model is to solve the problems of the technologies described above the technical scheme of taking to be: energy-dissipation beam column node of buckling-restrained bracing of the present utility model comprises I-shaped steel column and i section steel beam; Described energy-dissipation beam column node of buckling-restrained bracing 9 also comprises two billets, two angle steel connectors and two anti-buckling energy-consumption supporting members; Two anti-buckling energy-consumption supporting members are made up of an anti-buckling energy-consumption upper support member and an anti-buckling energy-consumption lower support member; Two billets all are fixed on the external surface on the same post edge of a wing of I-shaped steel column, and two billets and two corresponding one by one settings of angle steel connector, billet is between I-shaped steel column and angle steel connector, being fixed with the post edge of a wing of I-shaped steel column of billet and two side plates of two billets and two angle steel connectors is fastenedly connected, two angle steel connectors be arranged symmetrically in i section steel beam web both sides and be positioned at a side place of the web of i section steel beam, in addition two side plates of two angle steel connectors and the web of i section steel beam are fastenedly connected, the two ends up and down of the web of i section steel beam respectively are respectively arranged with an anti-buckling energy-consumption upper support member and an anti-buckling energy-consumption lower support member, and anti-buckling energy-consumption upper support member is arranged on i section steel beam near flange of beam place on it, anti-buckling energy-consumption lower support member is arranged on i section steel beam near flange of beam place under it, and anti-buckling energy-consumption upper support member and anti-buckling energy-consumption lower support member are fastenedly connected with the post edge of a wing of I-shaped steel column and the web of i section steel beam respectively.
The utlity model has following beneficial effect: the utlity model has construction and installation easy, do not influence the building function of use and be easy to shake the back and repair and reduce advantage such as shake back economic loss.Advantage of the present utility model is in particular in the following aspects: one, the construction and installation of bean column node mainly adopt bolt (high strength) to connect, and avoided the welding sequence on the beam-ends edge of a wing, both improved the efficient of construction and installation, also eliminated the adverse effect of welding the bean column node performance; Two, dissipative cell (being the anti-buckling energy-consumption supporting member) is arranged on the bean column node place, can solve the restriction of traditional dissipative cell set-up mode to the building function of use well; Three, after the earthquake, only need change the anti-buckling energy-consumption supporting member at energy-dissipation beam column node place and get final product, and original I-shaped steel column and i section steel beam still can continue to use, therefore this energy-dissipation beam column node neither influences earthquake reconstruction, can significantly reduce the shake back again and repair required expense, economy is fairly obvious.
Description of drawings
Fig. 1 is power consumption mode schematic diagram that dissipative cell is set in beam column standard width of a room in an old-style house inside (1 is metal damper among the figure, the 2nd, common support); Fig. 2 is the power consumption mode schematic diagram (3 is viscous dampers among the figure) that dissipative cell is set in beam column standard width of a room in an old-style house inside; Fig. 3 is the power consumption mode schematic diagram (4 is anti-buckling energy-consumption supporting damping devices among the figure) that dissipative cell is set in beam column standard width of a room in an old-style house inside; Fig. 4 is the power consumption mode schematic diagram (5 is beam-ends plasticity power consumption districts among the figure) of beam-ends surrender; Fig. 5 is the rigid joint constructional drawing (6 is i section steel beams among the figure, the 7th, I-shaped steel column) of traditional beam-ends edge of a wing welding, and Fig. 6 is the A-A sectional view of Fig. 5; Fig. 7 is traditional beam-ends edge of a wing welding " dog bone type " bean column node constructional drawing (8 is plasticity power consumption zones of cross section, the band edge of a wing weakening at i section steel beam two ends among the figure), and Fig. 8 is the B-B sectional view of Fig. 7; Fig. 9 is an energy-dissipation beam column node of buckling-restrained bracing constructional drawing of the present utility model, and Figure 10 is the C-C sectional view of Fig. 9, and Figure 11 is the D-D sectional view of Fig. 9, and Figure 12 is the E-E sectional view of Fig. 9, and Figure 13 is the F-F sectional view of Fig. 9, and Figure 14 is the G-G sectional view of Fig. 9; Figure 15 is that energy-dissipation beam column node of buckling-restrained bracing of the present utility model is made schematic flow sheet; Figure 16 is a practical engineering application instance graph of the present utility model.
The specific embodiment
The specific embodiment one: in conjunction with Fig. 9 ~ Figure 15 explanation, the energy-dissipation beam column node of buckling-restrained bracing 9 of present embodiment comprises I-shaped steel column 9-1 and i section steel beam 9-2; The energy-dissipation beam column node of buckling-restrained bracing 9 of present embodiment also comprises two billet 9-3, two angle steel connector 9-4 and two anti-buckling energy-consumption supporting members; Two anti-buckling energy-consumption supporting members are made up of an anti-buckling energy-consumption upper support member 9-5 and an anti-buckling energy-consumption lower support member 9-6; Two billet 9-3 all are fixed on the external surface of same post edge of a wing 9-1-1 of I-shaped steel column 9-1, and two billet 9-3 and two corresponding one by one settings of angle steel connector 9-4, billet 9-3 is between I-shaped steel column 9-1 and angle steel connector 9-4, being fixed with the post edge of a wing 9-1-1 of I-shaped steel column 9-1 of billet 9-3 and two side plates of two billet 9-3 and two angle steel connector 9-4 is fastenedly connected, two angle steel connector 9-4 be arranged symmetrically in i section steel beam 9-2 web 9-2-1 both sides and be positioned at the side place of the web 9-2-1 of i section steel beam 9-2, in addition two side plates of two angle steel connector 9-4 and the web 9-2-1 of i section steel beam 9-2 are fastenedly connected, the two ends up and down of the web 9-2-1 of i section steel beam 9-2 respectively are respectively arranged with an anti-buckling energy-consumption upper support member 9-5 and an anti-buckling energy-consumption lower support member 9-6, and anti-buckling energy-consumption upper support member 9-5 is arranged on i section steel beam 9-2 near flange of beam 9-2-2 place on it, anti-buckling energy-consumption lower support member 9-6 is arranged on i section steel beam 9-2 near flange of beam 9-2-3 place under it, and anti-buckling energy-consumption upper support member 9-5 and anti-buckling energy-consumption lower support member 9-6 are fastenedly connected with the post edge of a wing 9-1-1 of I-shaped steel column 9-1 and the web 9-2-1 of i section steel beam 9-2 respectively.
The specific embodiment two: in conjunction with Fig. 9 ~ Figure 15 explanation, the anti-buckling energy-consumption upper support member 9-5 of present embodiment is made up of attaching means 9-5-3 and two side direction upper limit spare 9-5-2 on central layer 9-5-1 on the T font, two the T fonts; Respectively be processed with first a groove 9-5-1-2 who matches with side direction upper limit spare 9-5-2 shape on two of the width of central layer 9-5-1-1 side end faces on the length of central layer 9-5-1 on the T font, a side direction upper limit spare 9-5-2 is housed in each first groove 9-5-1-2, on the T font on the weak point of central layer 9-5-1 central layer 9-5-1-3 and the post edge of a wing 9-1-1 of I-shaped steel column 9-1 and the web 9-2-1 of i section steel beam 9-2 be fastenedly connected, one of them of attaching means 9-5-3 is arranged on the external surface of central layer 9-5-1-1 and two side direction upper limit spare 9-5-2 on the length of central layer 9-5-1 on the corresponding T font and with it and is adjacent on two T fonts, correspondence of residue of attaching means 9-5-3 is arranged on the another side of web 9-2-1 of i section steel beam 9-2 on two T fonts, and the web 9-2-1 of attaching means 9-5-3 and two side direction upper limit spare 9-5-2 and i section steel beam 9-2 is fastenedly connected on two T fonts; Anti-buckling energy-consumption lower support member 9-6 is made up of attaching means 9-6-3 and two side direction lower limit part 9-6-2 under central layer 9-6-1 under the T font, two the T fonts; Respectively be processed with second a groove 9-6-1-2 who matches with side direction lower limit part 9-6-2 shape on two of the width of central layer 9-6-1-1 side end faces under the length of central layer 9-6-1 under the T font, a side direction lower limit part 9-6-2 is housed in each second groove 9-6-1-2, under the T font under the weak point of central layer 9-6-1 central layer 9-6-1-3 be fastenedly connected with the post edge of a wing 9-1-1 of I-shaped steel column 9-1 that is fixed with billet 9-3 and the web 9-2-1 of i section steel beam 9-2, one of them of attaching means 9-6-3 is arranged on the external surface of central layer 9-6-1-1 and two side direction lower limit part 9-6-2 under the length of central layer 9-6-1 under the corresponding T font and with it and is adjacent under two T fonts, correspondence of residue of attaching means 9-6-3 is arranged on the another side of web 9-2-1 of i section steel beam 9-2 under two T fonts, and the web 9-2-1 of attaching means 9-6-3 and two side direction lower limit part 9-6-2 and i section steel beam 9-2 is fastenedly connected under two T fonts.So be provided with, simple in structure, install easily, unrestricted to the building function of use.Other is identical with embodiment one.
The specific embodiment three: in conjunction with Fig. 9 ~ Figure 15 explanation, between two side plates of the post edge of a wing 9-1-1 of the I-shaped steel column 9-1 that is fixed with billet 9-3 of present embodiment and two billet 9-3 and two angle steel connector 9-4, between in addition two side plates of two angle steel connector 9-4 and the web 9-2-1 of i section steel beam 9-2, be fastenedly connected by a plurality of high-strength bolts respectively between the post edge of a wing 9-1-1 of anti-buckling energy-consumption upper support member 9-5 and I-shaped steel column 9-1 and the web 9-2-1 of i section steel beam 9-2 and between the web 9-2-1 of the post edge of a wing 9-1-1 of anti-buckling energy-consumption lower support member 9-6 and I-shaped steel column 9-1 and i section steel beam 9-2.So be provided with, connect reliably, connect back bulk strength height.Other is identical with embodiment one.
The specific embodiment four: in conjunction with Fig. 9 ~ Figure 15 explanation, on the T font of present embodiment on the weak point of central layer 9-5-1 between the web 9-2-1 of the post edge of a wing 9-1-1 of central layer 9-5-1-3 and I-shaped steel column 9-1 and i section steel beam 9-2, on two T fonts between the web 9-2-1 of attaching means 9-5-3 and two side direction upper limit spare 9-5-2 and i section steel beam 9-2, be fastenedly connected by a plurality of high-strength bolts respectively between the web 9-2-1 of attaching means 9-6-3 and two side direction lower limit part 9-6-2 and i section steel beam 9-2 between the web 9-2-1 of the post edge of a wing 9-1-1 of central layer 9-6-1-3 and I-shaped steel column 9-1 and i section steel beam 9-2 and under two T fonts under the weak point of central layer 9-6-1 under the T font.So be provided with, connect reliably, connect back bulk strength height.Other is identical with embodiment two.
Embodiment: in conjunction with Figure 16 explanation, present embodiment is that the utility model is installed in a embodiment in the actual engineering: flange surfaces on the i section steel beam 9-2 and concrete floor 10 are cast as one, be placed with Light trabs 11 on the concrete floor 10 and have big window 12, leave certain clearance between Light trabs 11 and I-shaped steel column 9-1 and the i section steel beam 9-2 to prevent that Light trabs 11 bumps with I-shaped steel column 9-1 and i section steel beam 9-2 under the geological process.
Operating principle of the present utility model is: under vertical uniform load q, angle steel connector 9-4 mainly bears the vertical shear and the beam-ends moment of flexure of beam-ends; Under little shake effect, anti-buckling energy-consumption supporting member and angle steel connector 9-4 acting in conjunction, the beam-ends moment of flexure that the anti-buckling energy-consumption supporting member is mainly born under the horizontal earthquake action to be produced; The additional beam-ends shearing that angle steel connector 9-4 then mainly bears horizontal earthquake action and produced.Under little shake effect, the anti-buckling energy-consumption supporting member remains elasticity, can increase the rigidity that relatively rotates of bean column node; And under middle shake or big shake effect, the anti-buckling energy-consumption supporting member will enter plasticity, the rigidity that relatively rotates of bean column node becomes gentle, and the geological process that can reduce structure also can earthquake energy, thereby makes I-shaped steel column 9-1 and i section steel beam 9-2 all remain elastic stage.
The processing method of energy-dissipation beam column node of buckling-restrained bracing of the present utility model realizes according to following steps: step 1, two billet 9-3 upward and on the post edge of a wing 9-1-1 of I-shaped steel column 9-1 open the bolt hole that is complementary respectively, the post edge of a wing 9-1-1 spot welding of two billet 9-3 and I-shaped steel column 9-1 are fixed again; Step 2, the web 9-2-1 of the side plate of angle steel connector 9-4 and the i section steel beam 9-2 that opens bolt hole mutually by and be symmetrically distributed in its both sides, fastening by high-strength bolt each other; Be fastenedly connected with high-strength bolt between the angle steel connector 9-4 another side on the web 9-2-1 of step 3, billet 9-3 and i section steel beam 9-2; Step 4, treat that main vertical load all is applied to Liang Shanghou (as cast-in-place concrete floor, partition wall etc.) and the two ends of central layer 9-6-1 under central layer 9-5-1 on the T font and the T font is fixed with the post edge of a wing 9-1-1 of I-shaped steel column 9-1 and the web 9-2-1 of i section steel beam 9-2 respectively by high-strength bolt again, and make on the T font central layer 9-6-1 under the central layer 9-5-1 and T font be adjacent to the web 9-2-1 of i section steel beam 9-2; Step 5, side direction upper limit spare 9-5-2 is positioned in the first groove 9-5-1-2 of central layer 9-5-1 on the T font, side direction lower limit part 9-6-2 is positioned in the second groove 9-6-1-2 of central layer 9-6-1 under the T font, attaching means 9-5-3 on two T fonts is sandwiched in respectively the top of central layer 9-5-1 on the T font and i section steel beam 9-2 web 9-2-1 another side (back side) and clamp mutually with the web 9-2-1 of high-strength bolt attaching means 9-5-3 on two T fonts, two side direction upper limit spare 9-5-2 and i section steel beam 9-2; In like manner, attaching means 9-6-3 under two T fonts be sandwiched in respectively the top of central layer 9-6-1 under the T font and i section steel beam 9-2 web 9-2-1 another side (back side) and clamp mutually with the web 9-2-1 of high-strength bolt attaching means 9-6-3 under two T fonts, two side direction lower limit part 9-6-2 and i section steel beam 9-2.