CN205557890U - Building structure all steel buckling restrained brace that local strength reduces - Google Patents
Building structure all steel buckling restrained brace that local strength reduces Download PDFInfo
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- CN205557890U CN205557890U CN201620349793.2U CN201620349793U CN205557890U CN 205557890 U CN205557890 U CN 205557890U CN 201620349793 U CN201620349793 U CN 201620349793U CN 205557890 U CN205557890 U CN 205557890U
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Abstract
The utility model discloses a building structure all steel buckling restrained brace that local strength reduces, lead to the style of calligraphy steel core that long cross -section equals including one, a style of calligraphy steel core by the clamping between the channel -section steel of two back -to -back settings, two the channel -section steel is through spaning a plurality of connector plates rigid couplings on the style of calligraphy steel core are in the same place a style of calligraphy steel core with the setting on the surface of channel -section steel counterpart has or not the adhesive material coating, the mid portion thermal treatment of a style of calligraphy steel core is for low strong section, the channel -section steel with the axis of a style of calligraphy steel core is in the coplanar, the both sides of two tip of a style of calligraphy steel core respectively are equipped with a stiffening rib, the stiffening rib with a style of calligraphy steel core is perpendicular. The utility model discloses can avoid the problem because of using the variable cross section inner core to lead to.
Description
Technical field
This utility model relates to the anti-buckling support in a kind of building structure, particularly relates to building of a kind of local strength reduction
The anti-buckling support of building structure all steel.
Background technology
In building structure, for improving the anti-side rigidity of structure, it will usually arrange the anti-side components such as support in the structure.Support
Of a great variety, traditional when being supported on coming earthquake, lack out of plane constraint owing to supporting and there is the problem of buckle in compression,
Support can relatively early occur complete buckling to lose efficacy, and then seismic force effects makes under structural bearing capacity on structural key component
Even there is serious destruction in fall.On the basis of traditional support, the problem existed for it, this is new in anti-buckling support
Type supporting form engenders and develops, and the structure of this support includes core surrender power consumption unit, the buckling-restrained list of periphery
Unit and sliding unit between the two.Owing to the buckling-restrained unit of periphery is that core cell provides stronger sidewise restraint,
Thus avoid the overall buckle in compression of core power consumption unit so that it is when pressurized based on inner core surrender, simultaneous
Many ripples cripling phenomenon so that core cell arranges mechanical property and load-carrying properties phase under the conditions of stretching and compression two kinds
Seemingly, the surrender energy dissipation capacity of support is added.
Anti-buckling support is high due to its structural effectiveness, and energy dissipation capacity is strong, is used in domestic and international multinomial engineering.But,
At home, anti-buckling support mostly is from external import, and its manufacturing process etc. all belongs to secrecy, this restrict anti-buckling of China
The application of support technology and development.
Be steel for this support, more domestic scholars and enterprise development inner core, outside use steel pipe and including
Fill concrete or the anti-buckling support of mortar between core and steel pipe, simultaneously in order to meet surrender and the inelastic deformation of core
Can betide restrained section, it is achieved pinpoint or determine the surrender in region, it is non-etc. that this anti-buckling support is substantially all employing
The mode of cross section inner core, strengthens core end cross-sectional and strengthens, or weakened in the section of power consumption cross section, center so that core
Relatively weak such that it is able to enter yield situation early than other sections.Also scholar is had to develop the anti-buckling support of all steel, but
Its inner core still designs for variable cross-section, makes core become more weak section of intensity.Finding in actual applications, both supports
Owing to inner core exists local strengthening or the problem of central segment local weakening, even if having employed certain smooth section to eliminate stress
Concentrate, still there will be ribbed stiffener welding ends, changeover portion and segment of cutting brittle fracture, the phenomenons such as flexion position is uncontrollable,
Virtual condition is caused not to be inconsistent with design point.Further, since need central segment uses the modes such as cutting reduce its intensity,
Can cause a certain degree of waste of inner core steel, and former supports due to needs casting concrete etc., the change of its inner core cuts
Component will be made to construct relative complex for surface construction and fabrication cycle is long.These problems all make anti-buckling support to exist smoothly
Domestic it be widely used and develop.
Therefore, advocate the theories such as positive steel, green building in country in the environment of, develop and can use the common heat of China
Steel rolling material makes, and without using cutting etc. that the novel of processing mode of steel waste and sectional dimension change can be caused to prevent
Buckling support, has particularly important meaning and necessity.
Summary of the invention
This utility model provides the building structure that a kind of local strength reduces for solving technical problem present in known technology
The anti-buckling support of all steel, this anti-buckling support is it can be avoided that because using the problem that caused of variable cross-section inner core.
This utility model is adopted the technical scheme that by solving technical problem present in known technology: one local strength
The anti-buckling support of building structure all steel reduced, including the yi word pattern steel core that an elongated cross section is equal, described yi word pattern steel
Core is by clamping between the channel-section steel of two back-to-back settings, and two described channel-section steels are by across on described yi word pattern steel core
Multiple junction steel plates are fixed together, and are provided with without viscous on the described yi word pattern steel core surface with described channel-section steel corresponding part
Knot material coating, the mid portion heat treatment of described yi word pattern steel core is low strong section；Described channel-section steel and described yi word pattern steel core
Axis in the same plane；Be respectively provided with a ribbed stiffener in the both sides of two ends of described yi word pattern steel core, described in put more energy into
Rib is vertical with described yi word pattern steel core.
The length of described yi word pattern steel core is more than described yi word pattern steel core more than the length of described channel-section steel, the length of described channel-section steel
The length of low strong section.
Described junction steel plate is bolted with described channel-section steel.
This utility model has the advantage that with good effect: 1) employed in support energy consumption inner core, steel are that China commonly uses
Hot-strip, source is wide and low price, breaches that China's low surrender steel type is less and expensive bottleneck；2)
Whole support all uses steel to make, environmental protection, contributes to alleviating the problem that China's steel are superfluous, and experience earthquake
After can recycle；3) the internal elongated cross section of steel core is identical, it is not necessary to carry out the operations such as cutting, it is to avoid the waste of material；
4) channel-section steel of steel core both sides uses junction steel plate to be connected by bolt, has on the one hand saved material and has produced certain to steel core
Effect of contraction, on the other hand junction steel plate is less, facilitates single workman assemble and connect, simultaneously can also be by even
Connect the space between steel plate and observe the state of internal steel core；5) support has good energy dissipation capacity, it is possible to achieve steel core
Fixed point surrender, and avoid stress mutation phenomenon by the gradually change of steel strength, avoid steel core due to cutting simultaneously
The problem neutralizing brittle fracture etc. the stress collection occurred；6) integrated support manufacturing process is relatively simple, and connects predominantly bolt
Connecting, processing and fabricating is convenient, and fabrication cycle is short, high-efficiency and economic.
Accompanying drawing explanation
Fig. 1 is overall schematic three dimensional views of the present utility model；
Fig. 2 is the floor map of Fig. 1；
Fig. 3 is the positive elevational schematic view of Fig. 1；
Fig. 4 is the side elevation schematic diagram of Fig. 1；
Fig. 5 is the sectional drawing of Section A-A in Fig. 1；
The steel core schematic diagram that Fig. 6 is used by this utility model；
Fig. 7 is that this utility model carries out the schematic diagram of heat treatment to steel core；
Fig. 8 is the sectional drawing of Fig. 7.
In figure: 1, yi word pattern steel core, 2, channel-section steel, 3, junction steel plate, 4, bolt, 5, ribbed stiffener, 6, soap-free emulsion polymeization
Material coating, 7, low strong section, 8, unprocessed section, 9, program-controlled heating device.
Detailed description of the invention
For summary of the invention of the present utility model, feature and effect can be further appreciated that, hereby enumerate following example, and coordinate
Accompanying drawing describes in detail as follows:
Referring to Fig. 1～Fig. 8, the anti-buckling support of building structure all steel that a kind of local strength reduces, including one elongated section
The yi word pattern steel core 1 that face is equal, described yi word pattern steel core 1 by clamping between the channel-section steel 2 of two back-to-back settings, two
Described in root, channel-section steel 2 is by being fixed together across the multiple junction steel plates 3 on described yi word pattern steel core 1, described one
Font steel core 1 is provided with non-cohesive material coating 6, described yi word pattern steel core 1 on the surface of described channel-section steel 2 corresponding part
Mid portion heat treatment be low strong section 7；The axis of described channel-section steel 2 and described yi word pattern steel core 1 is in the same plane；
It is respectively provided on two sides with ribbed stiffener 5, described ribbed stiffener 5 and described yi word pattern in two ends of described yi word pattern steel core 1
Steel core 1 is vertical.
Refer to Fig. 1～Fig. 8, the building structure all steel anti-buckling support manufacturing method that above-mentioned local strength reduces, use with
Lower step:
One) both sides of two ends of the yi word pattern steel core 1 equal in elongated cross section arrange ribbed stiffener 5 according to detailing requiments；
Two) mid portion of the yi word pattern steel core 1 equal to elongated cross section carries out heat treatment so that it is mid portion intensity drops
Low, ductility increases；
Three) yi word pattern steel core 1 is carried out sandblasting Shot Blasting, remove its surface oxide layer, and in its portion corresponding with channel-section steel
Brushing non-cohesive material on the surface divided, to form non-cohesive material coating 6；
Four) two channel-section steels 2 it is individually positioned in yi word pattern steel core 1 both sides and positions, making channel-section steel 2 and yi word pattern steel
The axis of core 1 in the same plane, then uses the junction steel plate 3 across yi word pattern steel core 1 to be connected by two channel-section steels 2
It is fixedly clamped between which together and by yi word pattern steel core 1, the most i.e. completes the building structure that local strength reduces
The making of the anti-buckling support of all steel.
Refer to Fig. 1～Fig. 6, when using said method to carry out anti-buckling support manufacturing, first according to structure to support
Require to calculate and determine steel core 1 and the sectional dimension of channel-section steel 2, and determine length L of steel core 11Length with both sides channel-section steel 2
L0, the requirement surrendering position according to yi word pattern steel core 1 when consuming energy determines position and length L of low strong section 72, and typically want
Seek L1＞ L0And L2＜ L0.Steel plate is used to make yi word pattern steel core 1, and the both sides of two ends at yi word pattern steel core 1
It is respectively welded ribbed stiffener 5.
Then mid portion-low strong the section 7 of steel core 1 being carried out heat treatment, refer to Fig. 7～Fig. 8, heat treatment method is:
Program-controlled heating device 9 parcel is used to need the mid portion carrying out the yi word pattern steel core 1 of heat treatment, first at ambient temperature
Program-controlled heating, to 1000 degrees Celsius, keeps 20 minutes, then uses the rate of temperature fall of 30 degrees Celsius per hour to lower the temperature,
When being down to 500 degrees centigrade, close program-controlled heating device 9, wait that yi word pattern steel core 1 is cooled to ambient temperature, i.e. complete
The special thermal treatment technique of yi word pattern steel core 1.
Then yi word pattern steel core 1 is carried out sandblasting Shot Blasting, removes the oxide layer on its surface, and brushing non-cohesive material,
After brushing, two channel-section steels 2 are individually positioned in the both sides of steel core 1 and position fixing, it is ensured that steel core 1 and channel-section steel 2
Axis is in same level.Junction steel plate 3 is placed on the corresponding position of channel-section steel 2, uses bolt 4 will connect steel
Plate 3 and channel-section steel 2 are fixed, and also complete the fixing of both sides channel-section steel 2 simultaneously, the most i.e. complete building of local strength's reduction
The making of the anti-buckling support of building structure all steel, arranging connecting plate at the two ends supported can be attached with structure corresponding site.
Be connected in engineering structure when being supported on coming earthquake, due to mid portion steel strength reduce so that a word
Shaped steel core 1 mid portion intensity produces local and weakens, thus can first surrender under seismic force effects, it is achieved surrender
Power consumption, reduces seismic force to the destruction of other components of agent structure and impact, it is ensured that the safety of structure.Meanwhile, in earthquake
After end, can conveniently be observed the flexing situation of steel core 1 by the space between junction steel plate 3, determine and be
Support is replaced by no needs.
Although preferred embodiment of the present utility model being described above in conjunction with accompanying drawing, but this utility model not office
Being limited to above-mentioned detailed description of the invention, above-mentioned detailed description of the invention is only schematically, is not restrictive, this
The those of ordinary skill in field, under enlightenment of the present utility model, is being protected without departing from this utility model objective and claim
In the case of the scope protected, it is also possible to make a lot of form, within these belong to protection domain of the present utility model.
Claims (3)
1. the anti-buckling support of building structure all steel that a local strength reduces, it is characterised in that include an elongated cross section
Equal yi word pattern steel core, described yi word pattern steel core by clamping between the channel-section steel of two back-to-back settings, two described grooves
Steel is by being fixed together across the multiple junction steel plates on described yi word pattern steel core, at described yi word pattern steel core with described
Being provided with non-cohesive material coating on the surface of channel-section steel corresponding part, the mid portion heat treatment of described yi word pattern steel core is low
Strong section；The axis of described channel-section steel and described yi word pattern steel core is in the same plane；Two ends at described yi word pattern steel core
Be respectively provided on two sides with ribbed stiffener, described ribbed stiffener is vertical with described yi word pattern steel core.
The anti-buckling support of building structure all steel that the most according to claim 1, local strength reduces, it is characterised in that institute
State the length of the yi word pattern steel core length more than described channel-section steel, the length of described channel-section steel more than described yi word pattern steel core low by force
The length of section.
The anti-buckling support of building structure all steel that the most according to claim 1, local strength reduces, it is characterised in that institute
State junction steel plate to be bolted with described channel-section steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620349793.2U CN205557890U (en) | 2016-04-21 | 2016-04-21 | Building structure all steel buckling restrained brace that local strength reduces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620349793.2U CN205557890U (en) | 2016-04-21 | 2016-04-21 | Building structure all steel buckling restrained brace that local strength reduces |
Publications (1)
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|---|---|
| CN205557890U true CN205557890U (en) | 2016-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201620349793.2U Expired - Fee Related CN205557890U (en) | 2016-04-21 | 2016-04-21 | Building structure all steel buckling restrained brace that local strength reduces |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927018A (en) * | 2016-04-21 | 2016-09-07 | 天津大学 | Building structure all-steel buckling-restrained brace in reduced local strength, and manufacturing method thereof |
| CN109339338A (en) * | 2018-09-28 | 2019-02-15 | 浙江大学宁波理工学院 | The ruggedized construction of square steel column |
-
2016
- 2016-04-21 CN CN201620349793.2U patent/CN205557890U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927018A (en) * | 2016-04-21 | 2016-09-07 | 天津大学 | Building structure all-steel buckling-restrained brace in reduced local strength, and manufacturing method thereof |
| CN109339338A (en) * | 2018-09-28 | 2019-02-15 | 浙江大学宁波理工学院 | The ruggedized construction of square steel column |
| CN109339338B (en) * | 2018-09-28 | 2021-04-06 | 浙江大学宁波理工学院 | Reinforcing structure of square steel column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20200421 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |