CN104196127B - A kind of buckling restrained brace flange form mounting structure and installation thereof and modulator approach - Google Patents
A kind of buckling restrained brace flange form mounting structure and installation thereof and modulator approach Download PDFInfo
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- CN104196127B CN104196127B CN201410411097.5A CN201410411097A CN104196127B CN 104196127 B CN104196127 B CN 104196127B CN 201410411097 A CN201410411097 A CN 201410411097A CN 104196127 B CN104196127 B CN 104196127B
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- restrained brace
- buckling restrained
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Abstract
The invention discloses a kind of buckling restrained brace flange form mounting structure, it comprises the node side flange dish be arranged on building frame node and the member side flange being arranged on buckling restrained brace one end; Node side flange dish is arranged with member side flange relative engagement and is connected by flange bolt; The gap plate for regulating both gaps is detachably provided with between node side flange dish and member side flange.The present invention installs buckling restrained brace by adopting flange form mounting structure, by installing gross thickness and then the adjustment of realization to buckling restrained brace of rear adjusting play plate, discharge the additional load that buckling restrained brace bears at any time, thus ensure when earthquake or other disasters occur, give full play to its effect, namely absorb and consume the energy of earthquake or other disasters as much as possible.Thus, installation question thereafter can thoroughly be solved.
Description
Technical field
The invention belongs to building structure node link technique field, be specifically related to a kind of buckling restrained brace flange form mounting structure and installation thereof and modulator approach.
Background technology
Buckling restrained brace is also known as undonded prestressed concrete, and being that a kind of new steel structure supports, is also a kind of energy dissipation brace.The center of buckling restrained brace is core, makes with low-yield steel, under responsive to axial force, allow larger plastic deformation, can be reached the object of power consumption by this distortion.Buckling-restrained also can reaching when pressurized is surrendered completely, makes support compression bearing suitable with tensile capacity, overcomes the shortcoming of traditional support compressive buckling, improve the bearing capacity of support, make to support hysteresis loop full, improve the shock resistance of structure.
Buckling restrained brace is a kind of dissipative member efficiently, and it is the important problem of of building field with integrally-built connection at present.
Summary of the invention
Buckling restrained brace is mainly used to bear geological process, and namely this support maybe can not can only bear temporary load(ing) by bearing load, and only has when geological process is come interim, supports and just plays its antihunt action.But present inventor finds that in long-term research process buckling restrained brace exists comparatively complicated rear installation question, and the rear installation question of the buckling restrained brace of diverse location is also different separately in different building, building, and short, in the subsequent construction process of some months and in the use procedure reaching in decades, the different rear installation question supported also presents different development trends and result, i.e. buckling restrained brace two-end-point generation relative displacement, and displacement has randomness.
The installation question of this complexity does not cause the attention of existing domain expert always.Its reason is: the generation of earthquake is a small probability event eventually, even if there is certain rear installation question, also can not cause the infringement of building immediately; Even and if when there is earthquake buckling restrained brace do not give full play to its due antihunt action, but due to the force majeure self attributes of earthquake and nonrepeatability, those skilled in the art are difficult to the rear installation question reviewing buckling restrained brace.Generally speaking, cause those of ordinary skill in the art generally to lack the power studying above-mentioned rear installation question, and then ignore the problems referred to above for a long time, meanwhile, there is again difficulty greatly in the discovery of this problem and solution.
Tradition type of attachment, (Fig. 1 a), bolt connects (Fig. 1 b) and pinned connection (Fig. 1 c) as being welded to connect, owing to all support being firmly connected with overall structure when overall structure is installed, to make to support with overall structure the shared load when geological process not yet arrives; Further, the supposed premise that above-mentioned syndeton ubiquity one is desirable, namely differently in same building supports and is samely supported on different times, and their suffered carrying immobilizes.And it is not in fact such.For no other reason than that, the small probability of earthquake, even if buckling restrained brace carries larger tensile stress or compressive stress, what problem building occupants also can not find that there is; From another angle, be just that the existence of buckling restrained brace also masks many building frame problems.
After discovery the problems referred to above, the present invention puts forth effort on the rear installation question solving buckling restrained brace and be connected with overall structure, and then the carrying change of Timeliness coverage whole building mechanism, and plays the antihunt action of buckling restrained brace better.
For solving the problem, a kind of buckling restrained brace flange form of the present invention mounting structure comprises the node side flange dish be arranged on building frame node and the member side flange being arranged on buckling restrained brace one end; Described node side flange dish is arranged with described member side flange relative engagement and is connected by flange bolt; The gap plate for regulating both gaps is detachably provided with between node side flange dish and member side flange.
Further, described gap plate comprises symmetrically arranged left plate and right plate; The notch passed through for described flange bolt is provided with in the middle of described left plate and right plate; Left plate is relative with right plate fasten after by bolt or screw fastening.
Further, described gap plate comprises plate and hush panel, described plate offers several the U-shaped openings passed through for described flange bolt; Described hush panel is arranged on the openend of plate by screw or bolt, and then is sealed up by U-shaped opening.
Further, described node side flange dish is fixedly connected with described node by welding; Described member side flange is fixedly connected with described buckling restrained brace by welding manner.
Further, described gap plate is one piece or some pieces of stacking, maximum pressure suffered by described buckling restrained brace of the minimum total thickness of described gap plate and setting.
Further, the preset clearance size between described node side flange dish and member side flange sets according to the described minimum thickness of the follow-up relative displacement of whole building mechanism and described gap plate.
Further, one end is had at least to adopt described flange form mounting structure in described buckling restrained brace two ends.
Installation and the modulator approach of above-mentioned buckling restrained brace flange form mounting structure comprise:
Step one: after the beam column installation of building periphery, is arranged on Nodes by described node side flange dish by being welded and fixed; Described member side flange is fixedly connected with one end of described buckling restrained brace;
Step 2; Utilize fastening devices to guarantee the resistance to overturning of described buckling restrained brace, and make described member side flange aim at described node side flange dish, utilize flange bolt and nut both to be tentatively fastenedly connected;
Step 3: after the installation of building overall structure all completes, insert gap plate between two pieces of flange, then flange bolt is finally tightened.
Further, one end of described buckling restrained brace adopts described flange form mounting structure, the other end adopt be welded to connect, bolt connect and the conventional coupling arrangement such as pinned connection time, first one end of conventional coupling arrangement is installed.
Further, described buckling restrained brace is detachably provided with stress measurement instrument, when implementation step three, realizes described stress measurement stress that instrument is surveyed by the thickness of adjusting play plate and meet setting requirement.
Further, build in follow-up construction or use procedure, the stress value of described buckling restrained brace is measured at any time by described stress measurement instrument, when described stress value exceedes setting range, adjust the gap length between described node side flange dish and member side flange by the described gap plate or plus-minus gap plate quantity exchanging different-thickness, and then stress value suffered by described buckling restrained brace is adjusted to setting range.
The present invention installs buckling restrained brace by adopting flange form mounting structure, by installing gross thickness and then the adjustment of realization to buckling restrained brace of rear adjusting play plate, discharge the additional load that buckling restrained brace bears at any time, thus ensure when earthquake or other disasters occur, give full play to its effect, namely absorb and consume the energy of earthquake or other disasters as much as possible.
Accompanying drawing explanation
Fig. 1 a is traditional welding connection diagram;
Fig. 1 b is traditional high-strength bolt connection diagram;
Fig. 1 c is traditional bearing pin connection diagram;
Fig. 2 is buckling restrained brace flange form mounting structure schematic diagram;
Fig. 3 is gap plate and gap plate bolt schematic diagram;
Fig. 4 is member side flange and flange bolt schematic diagram;
Fig. 5 installs the Rotating fields schematic diagram supporting front building;
Fig. 6 is the schematic diagram after inserting flange bolt;
Fig. 7 is the schematic diagram inserting gap plate and complete the present invention's installation.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
embodiment 1
Buckling restrained brace flange form mounting structure provided by the invention and mounting method are applicable to the installation of buckling restrained brace in steel work and steel-copper friction pair, and buckling restrained brace is arranged in the Rotating fields of building.As shown in Figure 5, Rotating fields comprises the first Vierendeel girder 11, second Vierendeel girder 12 and this layer of post 13, and this layer of post 13 is fixedly connected between the first Vierendeel girder 11 and the second Vierendeel girder 12.
As in Figure 2-4, a kind of buckling restrained brace flange form of the present invention mounting structure comprises the node side flange dish 1 be arranged on building frame node 7 and the member side flange 2 being arranged on buckling restrained brace 6 one end; Node side flange dish 1 is arranged with member side flange 2 relative engagement and is connected by flange bolt 3; The gap plate 4 for regulating both gaps is detachably provided with between node side flange dish 1 and member side flange 2.Adopt welding between node 7 and node side flange dish 1, between buckling restrained brace 6 and member side flange 2, adopt welding.
Gap plate 4 comprises symmetrically arranged left plate 41 and right plate 42; The notch 43 passed through for flange bolt is provided with in the middle of left plate 41 and right plate 42; The size of notch, quantity, position are determined according to the deployment scenarios of flange bolt 3.Left plate is relative with right plate fasten after fastening by bolt 5.
Gap plate 4 quantity can be one piece or some pieces, maximum pressure suffered by buckling restrained brace of the minimum total thickness of gap plate and setting.In addition, the gross thickness of gap plate 4 can regulate according to convenient construction, and gap plate can not be too thin, can not be too thick, relevant with the deflection that overall structure produces, advise that the thickness of gap plate is between 20-30mm, to guarantee the requirement of the strength and stiffness that buckling restrained brace connects.Preset clearance size between node side flange dish and member side flange sets according to the minimum total thickness of the follow-up relative displacement of whole building mechanism and gap plate.
Flange-type structure in the present invention can realize the rear installation connection request of buckling restrained brace 6 in the mode of first installing, buckling restrained brace 6 has at least one end to adopt this flange form mounting structure, and the other end can adopt the conventional coupling arrangement such as welding, bolt connection or pinned connection.
As shown in fig. 6-7, buckling restrained brace 6 comprises traditional link 21 and flange form mounting structure end 22, and buckling restrained brace 6 is connected between the first Vierendeel girder 11 and the second Vierendeel girder 12.Tradition link adopts as any one connected mode in Fig. 1 a, Fig. 1 b, Fig. 1 c, and flanged ends adopts mounting structure provided by the invention.Tradition link can be connected with upper strata beam, also can be connected with lower floor's beam, but for ease of installation adjustment, advises that traditional link is connected with upper strata beam, and flanged ends is connected with lower floor beam.
In addition, gap plate can also adopt plate form, plate offers several the U-shaped openings passed through for flange bolt; Hush panel is arranged on the openend of plate by screw or bolt, and then is sealed up by U-shaped opening.
embodiment 2
Installation and the modulator approach of above-mentioned buckling restrained brace flange form mounting structure comprise:
Step one: as shown in fig. 6-7, one end of buckling restrained brace adopts described flange form mounting structure, the other end adopt be welded to connect, bolt connect and the conventional coupling arrangement such as pinned connection time, after the beam column installation of building periphery, first one end of conventional coupling arrangement is installed; When mounting flange formula mounting structure one end, node side flange dish is arranged on Nodes by being welded and fixed; Described member side flange is fixedly connected with one end of buckling restrained brace;
Step 2; Utilize fastening devices to guarantee the resistance to overturning of described buckling restrained brace, and make described member side flange aim at described node side flange dish, utilize flange bolt and nut both to be tentatively fastenedly connected;
Step 3: buckling restrained brace is provided with stress measurement instrument, after the installation of building overall structure all completes, gap plate is inserted between two pieces of flange, realize described stress measurement stress that instrument is surveyed by the thickness of adjusting play plate and meet setting requirement, then flange bolt is finally tightened.
In the follow-up construction of building or use procedure, the stress value of buckling restrained brace can be measured at any time by stress measurement instrument, when stress value exceedes setting range, by exchanging the gap plate of different-thickness or the gap length between plus-minus gap plate quantity knot modification side flange dish and member side flange, and then stress value suffered by buckling restrained brace is adjusted to setting range.
The present invention installs buckling restrained brace by adopting flange form mounting structure, by installing gross thickness and then the adjustment of realization to buckling restrained brace of rear adjusting play plate, discharge the additional load that buckling restrained brace bears at any time, thus ensure when earthquake or other disasters occur, give full play to its effect, namely absorb and consume the energy of earthquake or other disasters as much as possible.Thus, installation question thereafter can thoroughly be solved.
Meanwhile, mounting method of the present invention is simple and quick, installation period is shortened dramatically, decreases construction cost, so the present invention has high industrial utilization.
Below only describe several preferred embodiments of the application by reference to the accompanying drawings, but the application is not limited thereto, every those of ordinary skill in the art are under the spirit not departing from the application, and any improvement made and/or distortion, all belong to the protection domain of the application.
Claims (10)
1. a buckling restrained brace flange form mounting structure, is characterized in that, it comprises the node side flange dish be arranged on building frame node and the member side flange being arranged on buckling restrained brace one end; Described node side flange dish is arranged with described member side flange relative engagement and is connected by flange bolt; The gap plate for regulating both gaps is detachably provided with between node side flange dish and member side flange.
2. flange form mounting structure as claimed in claim 1, it is characterized in that, described gap plate comprises symmetrically arranged left plate and right plate; The notch passed through for described flange bolt is provided with in the middle of described left plate and right plate; Left plate is relative with right plate fasten after by bolt or screw fastening.
3. flange form mounting structure as claimed in claim 1, it is characterized in that, described gap plate comprises plate and hush panel, described plate offers several the U-shaped openings passed through for described flange bolt; Described hush panel is arranged on the openend of plate by screw or bolt, and then is sealed up by U-shaped opening.
4. flange form mounting structure as claimed in claim 1, is characterized in that, described gap plate is one piece or some pieces of stacking, maximum pressure suffered by described buckling restrained brace of the minimum total thickness of described gap plate and setting.
5. flange form mounting structure as claimed in claim 4, it is characterized in that, the preset clearance size between described node side flange dish and member side flange sets according to the described minimum total thickness of the follow-up relative displacement of whole building mechanism and described gap plate.
6. flange form mounting structure as claimed in claim 1, is characterized in that having at least one end to adopt described flange form mounting structure in described buckling restrained brace two ends.
7. the installation of buckling restrained brace flange form mounting structure as described in as described in as arbitrary in claim 1-6 and modulator approach, it is characterized in that, it comprises:
Step one: after the beam column installation of building periphery, is arranged on Nodes by described node side flange dish by being welded and fixed; Described member side flange is fixedly connected with one end of described buckling restrained brace;
Step 2; Utilize fastening devices to guarantee the resistance to overturning of described buckling restrained brace, and make described member side flange aim at described node side flange dish, utilize flange bolt and nut both to be tentatively fastenedly connected;
Step 3: after the installation of building overall structure all completes, insert gap plate between two pieces of flange, then flange bolt is finally tightened.
8. install as claimed in claim 7 and modulator approach, it is characterized in that, one end of described buckling restrained brace adopts described flange form mounting structure, the other end adopt be welded to connect, bolt connect and the conventional coupling arrangement such as pinned connection time, first one end of conventional coupling arrangement is installed.
9. install as claimed in claim 7 and modulator approach, it is characterized in that, described buckling restrained brace is provided with stress measurement instrument, when implementation step three, realize described stress measurement stress that instrument is surveyed by the thickness of adjusting play plate and meet setting requirement.
10. install as claimed in claim 7 and modulator approach, it is characterized in that, build in follow-up construction or use procedure, the stress value of described buckling restrained brace is measured at any time by described stress measurement instrument, when described stress value exceedes setting range, adjust the gap length between described node side flange dish and member side flange by the described gap plate or plus-minus gap plate quantity exchanging different-thickness, and then stress value suffered by described buckling restrained brace is adjusted to setting range.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410411097.5A CN104196127B (en) | 2014-08-20 | 2014-08-20 | A kind of buckling restrained brace flange form mounting structure and installation thereof and modulator approach |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410411097.5A CN104196127B (en) | 2014-08-20 | 2014-08-20 | A kind of buckling restrained brace flange form mounting structure and installation thereof and modulator approach |
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| CN104196127A CN104196127A (en) | 2014-12-10 |
| CN104196127B true CN104196127B (en) | 2016-03-23 |
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Families Citing this family (2)
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| CN112541204A (en) * | 2019-09-23 | 2021-03-23 | 深圳市建筑设计研究总院有限公司 | Frame loading and layer-by-layer pre-internal force calculation method |
| CN110761429A (en) * | 2019-10-18 | 2020-02-07 | 中铁八局集团第六工程有限公司 | Method for installing and constructing BRB buckling restrained brace in building engineering |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004076761A1 (en) * | 2003-02-28 | 2004-09-10 | Nippon Steel Corporation | Beam joint device |
| CN201172902Y (en) * | 2008-01-25 | 2008-12-31 | 北京工业大学 | Hinge connection anti-flexion support |
| CN102535664A (en) * | 2010-12-29 | 2012-07-04 | 上海赛弗工程减震技术有限公司 | Novel support seismic energy dissipator |
| CN204098235U (en) * | 2014-08-20 | 2015-01-14 | 中冶建筑研究总院有限公司 | A kind of buckling restrained brace flange form mounting structure |
-
2014
- 2014-08-20 CN CN201410411097.5A patent/CN104196127B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004076761A1 (en) * | 2003-02-28 | 2004-09-10 | Nippon Steel Corporation | Beam joint device |
| CN201172902Y (en) * | 2008-01-25 | 2008-12-31 | 北京工业大学 | Hinge connection anti-flexion support |
| CN102535664A (en) * | 2010-12-29 | 2012-07-04 | 上海赛弗工程减震技术有限公司 | Novel support seismic energy dissipator |
| CN204098235U (en) * | 2014-08-20 | 2015-01-14 | 中冶建筑研究总院有限公司 | A kind of buckling restrained brace flange form mounting structure |
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