CN103469923B - The buckling restrained brace of a kind of welding, band observation port - Google Patents
The buckling restrained brace of a kind of welding, band observation port Download PDFInfo
- Publication number
- CN103469923B CN103469923B CN201310420362.1A CN201310420362A CN103469923B CN 103469923 B CN103469923 B CN 103469923B CN 201310420362 A CN201310420362 A CN 201310420362A CN 103469923 B CN103469923 B CN 103469923B
- Authority
- CN
- China
- Prior art keywords
- steel core
- observation port
- gfrp
- kernel steel
- energy dissipating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Bridges Or Land Bridges (AREA)
- Polymerization Catalysts (AREA)
Abstract
A kind of welding, with the buckling restrained brace of observation port, comprise kernel steel core and restraining tube unit, described kernel steel core is " one " word steel plate, described restraining tube unit comprises energy dissipating section, construction section outside the transformation segment at the axial two ends of energy dissipating section and two transformation segments, described energy dissipating section is GFRP rectangular tube with ribbing, filling molding foam in pipe time shaping, in pipe, GFRP floor is arranged perpendicular to kernel steel core, on energy dissipating section axis, kernel steel core is provided with multiple observation port, described transformation segment is GFRP expansion coupling, described construction section is perpendicular to kernel steel core and forms the GFRP stiffening rib of " ten " font with kernel steel core, disposal integral molding after whole supporting member employing polyurethane foam bar outsourcing glass fabric vacuum importing resin solidification.Have rational in infrastructure, from heavy and light, corrosion-resistant, non-maintaining, welding, the distortion of Real-Time Monitoring inner core can be judged whether flexing occurs by the setting of observation port, thus anticipation and decision feature carried out to support situation.
Description
Technical field
The constraint that the present invention relates to a kind of building structure supports, particularly the buckling restrained brace of a kind of welding, band observation port.
Background technology
Existing buckling restrained brace can the dynamic characteristics of modified node method thing preferably, improves its antivibration or anti-seismic performance.But mainly there are following some shortcomings in existing buckling restrained brace:
(1) mixed type buckling-restrained bracing member is from great.When for Steel Tower Structures, when support vertical scale is larger, may there is initial deflection distortion from great supporting member in installation, use procedure, this can have a negative impact to support performance, meanwhile, installation is not easy to from great buckling-restrained bracing member.In addition, rotproofness difference is also mixed type buckling restrained brace Problems existing.
(2) all steel type buckling restrained brace quality is relatively light, but higher to requirement for anticorrosion, is applied to outdoor structures maintenance cost higher.
To sum up, there is rotproofness difference in existing buckling restrained brace, from the deficiency such as great, limits its application in Steel Tower Structures and bridge construction.And existing buckling restrained brace, stiffening rib need be welded in end, cannot be shaped by one piece, and the distortion cannot monitoring inner core judges whether flexing occurs.
Summary of the invention
For solving above-mentioned prior art Problems existing, the present invention proposes the buckling restrained brace of a kind of welding, band observation port, can solve rotproofness difference, from the problem such as great.Meanwhile, steel core end does not need to weld stiffening rib, can be shaped by one piece, and the distortion of Real-Time Monitoring inner core judges whether flexing occurs.
For achieving the above object, technical scheme of the present invention is:
A kind of welding, with the buckling restrained brace of observation port, comprise kernel steel core and restraining tube unit, described kernel steel core is " one " word steel plate, described restraining tube unit comprises energy dissipating section, construction section outside the transformation segment at the axial two ends of energy dissipating section and two transformation segments, it is characterized in that, described energy dissipating section is GFRP rectangular tube with ribbing, filling molding foam in pipe time shaping, in pipe, GFRP rib is arranged perpendicular to kernel steel core, on energy dissipating section axis, kernel steel core is provided with multiple observation port, described transformation segment is GFRP expansion coupling, described construction section is perpendicular to kernel steel core and forms the GFRP stiffening rib of " ten " font with kernel steel core, described contoured foam is polyurethane foam, disposal integral molding after whole supporting member employing polyurethane foam bar outsourcing glass fabric vacuum importing resin solidification.
The described observation port organic glass rectangular tube of the organic glass cover-plate of inside and outside both sides band is inserted, organic glass cover plate and organic glass rectangular tube glass cement bond, the gap that the cover plate of inner side and kernel steel core stay 1.5mm thick, be full of when preventing kernel steel core flexing, glass to be damaged by pressure with resin, sight line can be made again to pass the flexing that resin bed sees kernel steel core simultaneously; The described cover plate left and right sides is given prominence to, and area is greater than watch window, is embedded in surrounding glass fabric and internal resin thereof after one-body molded; Outermost glass fabric covers the outer ring of watch window, leaves the space that 1.5mm is thick, forms the resin bed of 1.5mm, observation port is fixed in energy dissipating section, and sees the distortion of steel core by observation port after importing resin solidification is shaping on observation port; Thus judge its whether flexing.
If energy dissipating segment length is l, being specifically set to of observation port: at the L/4 of energy dissipating section, 2L/4,3L/4 place arranges three observation ports.
The size determination mode of described watch window is as follows:
When n rank buckling mode occurs kernel steel core, its capacity under axial is
the capacity under axial of component is constantly increased until exceed the surrender axle power of support, then capacity under axial to there is increasing many ripples unstability a little
wave number
the then length of a wavelength
for observing the flexing of steel core, then the length lm=2 λ of observation port;
For clearly observing the buckling mode of kernel steel core, the width b of observation port can determine by following calculating:
Visual angle according to eye-observation object should not be less than 25 °, then
b > tan (12.5 °) 2l
m=0.44l
m, wherein, h is that steel plate arrives line-of-sight distance, and also namely GFRP rib is high, and b is observation port width, and the width b of observation port must not be less than 0.44l
m, for ensureing that supporting mechanism is stablized, the width b of observation port must not be greater than the distance on cross section between two GFRP ribs.
Described GFRP expansion coupling is the waveform joint comprising two ripples, GFRP expansion coupling both ends of the surface are provided with GFRP gusset plate, side arranges GFRP stiffening rib, and when one imports, GFRP expansion coupling center is provided with " ten " font opening, for the section of fixed installation GFRP stiffening rib and kernel steel core.
Relative to prior art, beneficial effect of the present invention is: the present invention proposes the buckling restrained brace of a kind of welding, band observation port, can solve rotproofness difference, from the problem such as great.Meanwhile, steel core end does not need to weld stiffening rib, can be shaped by one piece, the distortion of Real-Time Monitoring inner core can be judged whether flexing occurs, thus carry out anticipation and decision to support situation by the setting of observation port.
Accompanying drawing explanation
Fig. 1 is positive elevational schematic view of the present invention.
Fig. 2 is kernel steel core of the present invention and gusset plate and the positive facade structural representation of stiffening rib.
Fig. 3 a is the A-A face schematic diagram of Fig. 1.
Fig. 3 b is the B-B face schematic diagram of Fig. 1.
Fig. 4 is the C-C face schematic diagram of Fig. 1.
Fig. 5 is the structural representation of expansion coupling of the present invention.
Fig. 6 is expansion coupling top view of the present invention.
Wherein 1-kernel steel core, 2-GFRP rectangular tube with ribbing, 3-contoured foam, 4-observation port, 4-1-cover plate, 4-2-organic glass rectangular tube, 5-GFRP expansion coupling, 6-GFRP stiffening rib, 7-GFRP gusset plate.
Detailed description of the invention
Below in conjunction with the drawings and the specific embodiments, the present invention is described in further details:
A kind of welding, with the buckling restrained brace of observation port, comprise kernel steel core 1 and restraining tube unit, described kernel steel core 1 is " one " word steel plate, described restraining tube unit comprises energy dissipating section, construction section outside the transformation segment at the axial two ends of energy dissipating section and two transformation segments, described energy dissipating section is GFRP rectangular tube 2 with ribbing, filling molding foam 3 in pipe time shaping, in pipe, GFRP rib is evenly arranged perpendicular to kernel steel core 1, on energy dissipating section axis, kernel steel core 1 is provided with multiple observation port 4, described transformation segment is GFRP expansion coupling 5, described construction section is perpendicular to kernel steel core and forms the GFRP stiffening rib 6 of " ten " font with kernel steel core, disposal integral molding after whole supporting member employing polyurethane foam bar outsourcing glass fabric vacuum importing resin solidification.
The described observation port 4 organic glass rectangular tube 4-2 of the organic glass cover-plate 4-1 of inside and outside both sides band inserts, organic glass cover plate 4-1 and organic glass rectangular tube 4-2 glass cement bond, the gap that the cover plate 4-1 of inner side and kernel steel core 1 stay 1.5mm thick, be full of when preventing kernel steel core 1 flexing, glass to be damaged by pressure with resin, sight line can be made again to pass the flexing that resin bed sees kernel steel core 1 simultaneously; The described cover plate 4-1 left and right sides is given prominence to, and area is greater than watch window, is embedded in surrounding glass fabric and internal resin thereof after one-body molded; Outermost glass fabric covers the outer ring of observation port 4, leave the space that 1.5mm is thick, on observation port 4, form the resin bed of 1.5mm after importing resin solidification is shaping, observation port 4 is fixed in energy dissipating section, and sees the distortion of kernel steel core 1 by observation port 4; Thus judge its whether flexing.
If energy dissipating segment length is l, being specifically set to of observation port 4: at the L/4 of energy dissipating section, 2L/4,3L/4 place arranges three observation ports 4.
The size determination mode of described watch window is as follows:
When n rank buckling mode occurs kernel steel core, its capacity under axial is
the capacity under axial of component is constantly increased until exceed the surrender axle power of support, then capacity under axial to there is increasing many ripples unstability a little
wave number
the then length of a wavelength
for observing the flexing of steel core, then the length l of observation port
m=2 λ;
For clearly observing the buckling mode of kernel steel core, the width b of observation port can determine by following calculating:
Visual angle according to eye-observation object should not be less than 25 °, then
b > tan (12.5 °) 2h=0.44h, wherein, h is that steel plate arrives line-of-sight distance, and also namely GFRP rib is high, and b is observation port width, and the width b of observation port must not be less than 0.44l
m, for ensureing that supporting mechanism is stablized, the width b of observation port must not be greater than the distance on cross section between two GFRP ribs.
Described GFRP expansion coupling 5 is the waveform joint for comprising two ripples, GFRP expansion coupling 5 both ends of the surface are provided with GFRP gusset plate 7, side arranges GFRP stiffening rib 6, and when one imports, GFRP expansion coupling 5 center is provided with " ten " font opening, for the section of fixed installation GFRP stiffening rib 6 and kernel steel core 1.
Whole supporting member vacuum imports global formation concrete steps: by kernel steel core 1, expansion coupling, the polyurethane foam (band observation port) that glass fabric is wrapped puts into the mould completing glass fabric successively, at component surface lay glass fiber drop cloth again, the lay release cloth successively on the surface of glass fabric, flow-guiding cloth, surrounding lay spiral winding mozzle, be connected with vacuum pump, and lay vacuum bag, vacuumize again, import resin, after a period of time, after resin solidification is complete, throw off vacuum bag, take out goods and carry out deburring grinding process.
The present invention proposes the buckling restrained brace of a kind of welding, band observation port, can solve rotproofness difference, from the problem such as great.Meanwhile, steel core end does not need to weld stiffening rib, can be shaped by one piece, the distortion of Real-Time Monitoring inner core can be judged whether flexing occurs, thus carry out anticipation and decision to support situation by the setting of observation port.
The above, be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any change of expecting without creative work or replacement, all should be encompassed within protection scope of the present invention.
Claims (4)
1. a welding, with the buckling restrained brace of observation port, comprise kernel steel core and restraining tube unit, described kernel steel core is " one " word steel plate, described restraining tube unit comprises energy dissipating section, construction section outside the transformation segment at the axial two ends of energy dissipating section and two transformation segments, it is characterized in that, described energy dissipating section is GFRP rectangular tube with ribbing, filling molding foam in pipe time shaping, in pipe, GFRP rib is arranged perpendicular to kernel steel core, on energy dissipating section axis, kernel steel core is provided with multiple observation port, described transformation segment is GFRP expansion coupling, described construction section is perpendicular to kernel steel core and forms the GFRP stiffening rib of " ten " font with kernel steel core, described contoured foam is polyurethane foam, disposal integral molding after whole supporting member employing polyurethane foam bar outsourcing glass fabric vacuum importing resin solidification,
The described observation port organic glass rectangular tube of the organic glass cover-plate of inside and outside both sides band is inserted, organic glass cover plate and organic glass rectangular tube glass cement bond, the gap that the cover plate of inner side and kernel steel core stay 1.5mm thick, be full of when preventing kernel steel core flexing, glass to be damaged by pressure with resin, sight line can be made again to pass the flexing that resin bed sees kernel steel core simultaneously; The described cover plate left and right sides is given prominence to, and area is greater than watch window, is embedded in surrounding glass fabric and internal resin thereof after one-body molded; Outermost glass fabric covers the outer ring of watch window, leaves the space that 1.5mm is thick, forms the resin bed of 1.5mm, observation port is fixed in energy dissipating section, and sees the distortion of steel core by observation port after importing resin solidification is shaping on observation port; Thus judge its whether flexing.
2. the buckling restrained brace of a kind of welding as claimed in claim 1, band observation port, is characterized in that, if energy dissipating segment length is L, and being specifically set to of observation port: three observation ports are set at L/4, L/2,3L/4 place of energy dissipating section.
3. the buckling restrained brace of a kind of welding as claimed in claim 1, band observation port, it is characterized in that, the size determination mode of described watch window is as follows:
When n rank buckling mode occurs kernel steel core, its capacity under axial is
the capacity under axial of component is constantly increased until exceed the surrender axle power of support, then capacity under axial to there is increasing many ripples unstability a little
wave number
the then length of a wavelength
for observing the flexing of steel core, then the length l of observation port
m=2 λ;
For clearly observing the buckling mode of kernel steel core, the width b of observation port can determine by following calculating:
Visual angle according to eye-observation object should not be less than 25 °, then
b > tan (12.5 °) 2h=0.44h, wherein, h is that steel plate arrives line-of-sight distance, and also namely GFRP rib is high, and b is observation port width, and the width b of observation port must not be less than 0.44l
m, for ensureing that supporting mechanism is stablized, the width b of observation port must not be greater than the distance on cross section between two GFRP ribs.
4. the buckling restrained brace of a kind of welding as claimed in claim 1, band observation port, it is characterized in that, described GFRP expansion coupling is the waveform joint comprising two ripples, GFRP expansion coupling both ends of the surface are provided with GFRP gusset plate, side arranges GFRP stiffening rib, when one imports, GFRP expansion coupling center is provided with " ten " font opening, for the section of fixed installation GFRP stiffening rib and kernel steel core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310420362.1A CN103469923B (en) | 2013-09-13 | 2013-09-13 | The buckling restrained brace of a kind of welding, band observation port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310420362.1A CN103469923B (en) | 2013-09-13 | 2013-09-13 | The buckling restrained brace of a kind of welding, band observation port |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103469923A CN103469923A (en) | 2013-12-25 |
| CN103469923B true CN103469923B (en) | 2015-12-23 |
Family
ID=49794951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310420362.1A Active CN103469923B (en) | 2013-09-13 | 2013-09-13 | The buckling restrained brace of a kind of welding, band observation port |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103469923B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947821A (en) * | 2014-03-24 | 2015-09-30 | 蔡崇兴 | Restrained bracing device with inspection window holes |
| CN104947791A (en) * | 2014-03-24 | 2015-09-30 | 蔡崇兴 | Energy dissipation supporting device with inspection window holes |
| CN104947790A (en) * | 2014-03-24 | 2015-09-30 | 蔡崇兴 | Brace device with inspection window holes |
| CN104947789A (en) * | 2014-03-24 | 2015-09-30 | 蔡崇兴 | Energy dissipation brace device with inspection window holes |
| CN105133739A (en) * | 2014-05-29 | 2015-12-09 | 蔡崇兴 | Restraining and diagonal bracing device with inspection windows |
| CN107965066B (en) * | 2017-11-14 | 2019-07-30 | 东南大学 | A kind of induced damage Observable energy consumption bar |
| CN109653380B (en) * | 2019-01-10 | 2020-11-06 | 广西盛隆钢铁材料研究院 | Cut-off type embedded part steel connecting structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200992750Y (en) * | 2006-12-08 | 2007-12-19 | 北京工业大学 | Combined hot-rolled angle steel huckling-proof support |
| CN101440639A (en) * | 2008-12-10 | 2009-05-27 | 上海维固工程实业有限公司 | Flexion energy dissipation preventing support |
| CN101575884A (en) * | 2009-05-27 | 2009-11-11 | 清华大学 | Reinforced-fiber composite constraining anti-buckling energy-consumption steel timbering |
| CN103273663A (en) * | 2013-06-04 | 2013-09-04 | 南京工业大学 | Manufacturing method of maintenance-free steel-composite material buckling restrained brace |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009019436A (en) * | 2007-07-13 | 2009-01-29 | Daiwa House Ind Co Ltd | Buckling constraint brace |
-
2013
- 2013-09-13 CN CN201310420362.1A patent/CN103469923B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200992750Y (en) * | 2006-12-08 | 2007-12-19 | 北京工业大学 | Combined hot-rolled angle steel huckling-proof support |
| CN101440639A (en) * | 2008-12-10 | 2009-05-27 | 上海维固工程实业有限公司 | Flexion energy dissipation preventing support |
| CN101575884A (en) * | 2009-05-27 | 2009-11-11 | 清华大学 | Reinforced-fiber composite constraining anti-buckling energy-consumption steel timbering |
| CN103273663A (en) * | 2013-06-04 | 2013-09-04 | 南京工业大学 | Manufacturing method of maintenance-free steel-composite material buckling restrained brace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103469923A (en) | 2013-12-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103469923B (en) | The buckling restrained brace of a kind of welding, band observation port | |
| WO2017071110A1 (en) | Assembled-type underground pipe gallery | |
| CN201671199U (en) | Semi-rigid joint dual-steel tube power-consumption support resisting bending | |
| CN102322071B (en) | Universal base structure of main transformer of 220kV substation | |
| CN103215894B (en) | Portable interim prestressed stretch-draw anchor block | |
| CN204690992U (en) | All steel twin-core bucking of plate constraint braced structures | |
| CN105298021A (en) | Circular steel tube concrete column and anti-buckling reinforcement and repair method thereof | |
| CN201883562U (en) | Buckling-restrained steel pipe support structure restricted by aluminum alloy sleeve barrel | |
| CN211499309U (en) | Combined shear wall template | |
| CN204826283U (en) | Honeycomb formula space reinforcing bar arrangement form concrete antiknock wallboard | |
| CN201383023Y (en) | Composite glass fiber reinforced plastic communication optical cable and cable protecting housing | |
| CN204457793U (en) | The intelligent ruggedized construction of shield tunnel hoop | |
| CN210050407U (en) | PVC-U solid wall pipe with shock-resistant structure | |
| CN207211189U (en) | The underground pipe gallery of enhanced 3D printing | |
| CN209430896U (en) | A kind of Novel double offset ring pipe with high compressive strength | |
| CN204690993U (en) | Assembling buckling restrained brace structure | |
| CN204551797U (en) | A kind of antiknock masonry wall structure | |
| CN103233678B (en) | A kind of scalable vertical ladder | |
| CN204850004U (en) | Inspection shaft | |
| CN220077252U (en) | Cable protection tube storage rack | |
| CN203452185U (en) | High-strength steel tube beam endless support polygonal frame | |
| CN204793910U (en) | Large -span cable testing bridge | |
| CN203547602U (en) | Coiled tubing winding roller | |
| CN212251452U (en) | Novel overhead glass fiber reinforced plastic pipeline | |
| CN203669136U (en) | Anti-buckling supporting member |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |