CN203866975U - Bending resistant component and beam column connection joint - Google Patents
Bending resistant component and beam column connection joint Download PDFInfo
- Publication number
- CN203866975U CN203866975U CN201320818324.7U CN201320818324U CN203866975U CN 203866975 U CN203866975 U CN 203866975U CN 201320818324 U CN201320818324 U CN 201320818324U CN 203866975 U CN203866975 U CN 203866975U
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- bending resistance
- resistance parts
- fixed part
- column connection
- support portion
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Abstract
The utility model discloses a bending resistant component and a beam column connection joint. The bending resistant component is of a metal cuboid structure and comprises a first side face close to the end of a beam and a second side face close to the side of a column. The first side face and the second side face are respectively provided with an installation hole, and the surfaces adjacent to the first side face and the second side face are respectively provided with a fastening hole. The bending resistant component can connect the column and the beam. When an earthquake occurs, plastic deformation happens firstly, structural rigidity distribution is changed, earthquake energy is absorbed and dissipated, so that damage is concentrated to the end of the beam, and other parts of the structure are prevented from being damaged. After the earthquake happens, the bending resistant component can be conveniently and economically changed, and the structure can restore to the original state. The bending resistant component is simple to construct and easy to replace, and project cost is saved. The utility model further discloses the beam column connection joint with the bending resistant component.
Description
Technical field
The utility model relates to engineering construction field, particularly relates to a kind of bending resistance parts and beam-column connection.
Background technology
Reinforced concrete structure is very common in building field, and usually, reinforced concrete structure damage occurs in earthquake and focuses mostly in beam-ends position, when damage occurs beam-ends, can have following problem:
Once the damage of beam-ends position, is accompanied by the vertical muscle tension surrender of beam-ends and concrete by the damage of conquassation, its reparation is more difficult, needs whole member to change in serious situation, and rehabilitation expense is higher.
The rigidity of structure of steel concrete is larger, and structure can absorb larger seismic energy under geological process, thereby brings serious internal injury.Reinforced concrete structural element, due to the difference in quality, construction quality and the design of material, causes the distribution of whole plastic hinge and development to be difficult to prediction, the safety of serious threat structure.
Utility model content
Based on this, be necessary to provide a kind of change easy, low, safe bending resistance parts and the beam-column connection of rehabilitation expense.
A kind of bending resistance parts, be used for connecting beam-ends and post side, it is characterized in that, described bending resistance parts are the rectangular structure that metal is made, described bending resistance parts have the first side of close beam-ends and the second side of close post side, and described the first side and described the second side are equipped with installing hole;
The surface adjacent with described the second side with described the first side is equipped with fastener hole.
In an embodiment, between described the first side and described the second side, be also provided with crossbeam therein, described beam vertical is connected in described the first side and the second side.
In an embodiment, described crossbeam is positioned at the mid point of described the first side and described the second side transverse edge therein.
Adopt a beam-column connection for above-mentioned bending resistance parts, comprise support portion, for supporting the bracket bearing of described support portion;
Described bracket bearing welding or bolt are connected in described bending resistance parts, post side and support portion;
The welding of described support portion or bolt are connected in described beam-ends.
In an embodiment, also comprise U-shaped positioning element therein, described bending resistance parts are positioned at described U-shaped positioning element inside and mate with described U-shaped positioning element.
Therein in an embodiment, described U-shaped positioning element comprises the first fixed part, the second fixed part and connecting portion, described the first fixed part is parallel with described the second fixed part, described connecting portion is between described the first fixed part and described the second fixed part, and described the first fixed part, the second fixed part, connecting portion are one-body molded;
Described the first fixed part and described the second fixed part are provided with crab-bolt bar, and the diameter of described crab-bolt bar mates with described installing hole.
In an embodiment, described bracket bearing welding or bolt are connected in described connecting portion and support portion therein.Be bracket bearing be positioned at bending resistance parts, U-shaped positioning element and support portion under, now, bracket bearing is maximum to the holding power of support portion.
In an embodiment, the width of described support portion is more than or equal to the width of beam-ends therein.Be that beam-ends is positioned on support portion completely, now, the vertical force that beam-ends is subject to can better be transmitted in support portion.
In an embodiment, the width of described bracket bearing equals the width of post side therein.Can pass to better wall or post so that bracket bearing transmits by support portion the vertical force of coming.
Therein in an embodiment, the width in described bracket cross section equals distance between described the first side and described the second side and the width sum of described support portion.
Above-mentioned bending resistance parts, be arranged on beam-ends, in use, adopt connector that beam-ends is connected with bending resistance parts respectively by installing hole with post side, and then by fastener hole, make the stable connection of bending resistance parts and beam-ends and post side, thereby beam and post are linked together indirectly by bending resistance parts.Bending resistance parts have bending resistance, and the beam-ends that can meet structure different parts supports resistant to bending needs.Above-mentioned bending resistance parts, under regular service conditions, in the elastic working stage, its service behaviour is consistent with general reinforced concrete beam.When coming earthquake, can guarantee that beam-ends enters plasticity prior to styletable, and metal material good plastic deformation ability and energy dissipation capacity have been guaranteed.After earthquake, the bending resistance parts that severe plastic deformation occurs can be changed, make structure recovery arrive serviceable condition.
Above-mentioned bending resistance parts effectively separately transmit Shear force within the beam end and beam-ends moment of flexure and plastic strain do not occur to meet the needs of normal use.When earthquake occurs, by first plastic strain occurs, change structure Stiffness Distribution, absorbs and dissipation seismic energy, makes to destroy concentrating on beam-ends, and protection other positions of structure exempt from destruction.Can facilitate after the earthquake, change economically bending resistance parts, make structure recovery arrive original state.Above-mentioned bending resistance parts construction is simple, replacing is easy, has saved construction costs.Meanwhile, can the predict possible plastic hinge of above-mentioned bending resistance parts distributes and development path, thereby prevents and reduces natural disasters guidance is provided for structure targetedly.
Adopt the beam-column connection of above-mentioned bending resistance parts, vertical force is mainly transmitted in support portion, and emission levels constraint and crooked constraint etc. provide enough horizontal deformation and crooked deformabilities.Bracket bearing transmits by support portion the vertical internal force coming and passes to wall or post.Therefore, above-mentioned beam-column connection connects beam-ends and intercolumniation in succession, can effectively transmit vertical load, the horizontal restraint of beam-ends and rotational restraint can be discharged again, makes beam-ends have the ability of effective adaptation level distortion and rotational deformation.Above-mentioned beam-column connection can solve the structure crack problem that differential settlement between structure each several part causes structural damage and thermal stresses, settlement joint, temperature joint in can alternative structure, and construction is simple.
Accompanying drawing explanation
Fig. 1 is the perspective view of the bending resistance parts of an embodiment;
Fig. 2 is the elevation of the bending resistance parts of an embodiment;
Fig. 3 is the top view of the bending resistance parts of an embodiment;
Fig. 4 is the elevation of the beam-column connection of an embodiment;
Fig. 5 is the top view of the beam-column connection of an embodiment;
Fig. 6 is the elevation of the U-shaped positioning element of an embodiment;
Fig. 7 is the top view of the U-shaped positioning element of an embodiment;
Fig. 8 is the beam column connection diagram of an embodiment;
Fig. 9 is the beam column connection diagram of another embodiment;
Figure 10 is the top view of structural representation of the beam-column connection of an embodiment;
Figure 11 is the sectional drawing of the beam-column connection of an embodiment;
Figure 12 (a) is the horizontal distortion structural representation of the beam-column connection of an embodiment;
Figure 12 (b) is the horizontal distortion structural representation of the beam-column connection of an embodiment;
Figure 13 (a) is the flexural deformation structural representation of the beam-column connection of an embodiment;
Figure 13 (b) is the flexural deformation structural representation of the beam-column connection of an embodiment;
Reference numeral:
10, bending resistance parts; 20, beam; 30, post; 40, U-shaped positioning element; 100, the first side; 102, the second side; 104, installing hole; 106, fastener hole; 108, crossbeam; 400, the first fixed part; 402, the second fixed part; 404, connecting portion; 406, crab-bolt bar; 14 support portions; 16 bracket bearings.
The specific embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in detail.A lot of details have been set forth in the following description so that fully understand the utility model.But the utility model can be implemented to be much different from alternate manner described here, and those skilled in the art can do similar improvement without prejudice to the utility model intension in the situation that, so the utility model is not subject to the restriction of following public concrete enforcement.
Refer to Fig. 1-3, the bending resistance parts 10 of one embodiment, for tie-beam 20 and post 30, the rectangular structure that bending resistance parts 10 are made for metal, bending resistance parts 10 have the first side 100 of close beam 20 and the second side 102 of close post 30, the first side 100 and the second side 102 are equipped with installing hole 104, and the surface adjacent with the second side 102 with the first side 100 is equipped with fastener hole 106.The rectangular structure that bending resistance parts 10 are formed in one, the first side 100 is parallel with the second side 102, and bending resistance parts 10 remaining six surface are equipped with fastener hole 106.The effect of installing hole 104 is to be beneficial to post 30 or beam 20 to be connected with bending resistance parts 10 by installing hole 104.In the present embodiment, installing hole 104 is crab-bolt bar hole, and post 30 or beam 20 are connected with bending resistance parts 10 by crab-bolt bar 406 and crab-bolt bar hole, and the first side 100 is connected with post 30, the second side 102 is connected with beam 20, and then has realized the indirect connection of post 30 and beam 20.The number of installing hole 104 can be selected according to the size of bending resistance parts 10.In the present embodiment, the number of installing hole 104 is 8, and the first side 100 and the second side 102 respectively have 4.
The effect of fastener hole 106 is to facilitate screwing of crab-bolt.When pretension crab-bolt, can from the fastener hole 106 on bending resistance parts 10 surfaces, stretch into hawkbill pretension, thereby make crab-bolt bar 406 and bending resistance parts 10 stable connections.In the present embodiment, installing hole 104 is near fastener hole 106, to reach the object being tightened that facilitates crab-bolt bar 406.Be understandable that, the shape of fastener hole 106 can have any shape, as long as its size can facilitate the turnover of hawkbill.In the present embodiment, fastener hole 106 be shaped as rectangle, its area is slightly less than the area on bending resistance parts 10 surfaces at its place.
The material of bending resistance parts 10 is metal, as iron, stainless steel etc.
Above-mentioned bending resistance parts 10, be arranged on beam 20 ends, in use, beam 20 is connected with bending resistance parts 10 respectively by installing hole 104 with post 30, and then by fastener hole 106, make the stable connection of bending resistance parts 10 and beam 20 and post 30, thereby realize, beam 20 and post 30 are linked together indirectly by bending resistance parts 10.Bending resistance parts 10 have bending resistance, and the beam 20 that can meet structure different parts supports resistant to bending needs.Above-mentioned bending resistance parts 10, under regular service conditions, in the elastic working stage, its service behaviour is consistent with general reinforced concrete beam.When coming earthquake; can guarantee that beam 20 ends enter plasticity prior to post 30 ends; metal material has guaranteed good plastic deformation ability and energy dissipation capacity; bending resistance parts 10 are surrendered with dissipation seismic energy according to expection; reduce structural entity rigidity; reduce the seismic energy that structure absorbs, make to destroy concentrating on bending resistance parts 10 positions simultaneously, protect other positions to avoid earthquake damage.After earthquake, by changing the bending resistance parts 10 of severe plastic deformation, make structure recovery arrive serviceable condition.
Referring again to Fig. 3, in one embodiment, between the first side 100 and the second side 102, be also provided with crossbeam 108, crossbeam 108 is vertically connected at the first side 100 and the second side 102.When bending resistance parts 10 are longer, easily there is deformation, between the first side 100 and the second side 102, crossbeam 108 is set, can play the effect of firm bending resistance parts 10 shapes.In the present embodiment, crossbeam 108 is positioned at the mid point of the first side 100 and the second side 102 transverse edges.The end face of crossbeam 108 should maintain an equal level with the end face of bending resistance parts 10.
Above-mentioned bending resistance parts 10 can be applied to, in beam-column connection, refer to Fig. 4 and Fig. 5, and the beam-column connection of an embodiment comprises support portion 14, for supporting bracket bearing 16 and the above-mentioned bending resistance parts 10 of support portion 14.16 welding of bracket bearing or bolt are connected in bending resistance parts 10, post side and support portion 14.Support portion 14 welding or bolt are connected in beam-ends.The vertical force of beam-ends is transmitted in support portion 14, and bracket bearing 16 transmits by support portion 14 vertical force of coming and passes to wall or post, and having discharged horizontal restraint and crooked constraint provides enough horizontal deformation and crooked deformabilities for beam-ends.In the present embodiment, support portion 14 is Z-shaped support.In other embodiments, support portion 14 can be also other shapes.Z-shaped support be positioned at beam-ends under and be connected with beam-ends welding or bolt, now, beam was similar to and is articulated and connected with being connected of Z-shaped support, for beam-column connection provides good rotational deformation ability.
Above-mentioned node is after being applied to seismic design of structures and Structural strengthening design, and that can realize ideal is articulated and connected, and good rotational deformation ability is provided, and improves the internal stress that differential settlement brings to this structure.Above-mentioned node can also be realized good horizontal deformation, substitutes the form of construction work of temperature joint and ater-casting, and can effectively solve the thermal stresses problem of massive structure.Above-mentioned beam-column connection easy construction, is not affecting under the prerequisite of structural integrity, makes structure have excellent distortion adaptive capacity.
As shown in Figure 6 and Figure 7, in one embodiment, beam-column connection also comprises U positioning element, and bending resistance parts 10 are positioned at U-shaped positioning element 40 inside and mate with U-shaped positioning element 40.U-shaped positioning element 40 can guarantee the location of bending resistance parts 10, and it is generally to adopt cast iron prefabricated.In the cast of reinforced concrete beam column connected node, U-shaped positioning element 40 pre-pluggeds, in beam 20 post sides, are facilitated to the setting of bending resistance parts 10.
In the present embodiment, U-shaped positioning element 40 comprises the first fixed part 400, the second fixed part 402 and the connecting portion 404 be arrangeding in parallel, the first fixed part 400 is parallel with the second fixed part 402, connecting portion 404 is between the first fixed part 400 and the second fixed part 402, and the first fixed part 400, the second fixed part 402 and connecting portion 404 are one-body molded; The first fixed part 400 and the second fixed part 402 are provided with crab-bolt bar 406, and the diameter of crab-bolt bar 406 mates with installing hole 104.U-shaped positioning element 40 and crab-bolt bar 406 unitary, injection-molded, crab-bolt bar 406 is fixedly connected with the second fixed part 402 with the first fixed part 400.When bending resistance parts 10 are placed in U-shaped positioning element 40, crab-bolt bar 406 stretches into bending resistance parts 10 inside by installing hole 104.In the present embodiment, the number of crab-bolt bar 406 is 8, and it is positioned at bending resistance parts 10 by installing hole 104 one end respectively, and the other end is positioned at outside U-shaped positioning element 40.Can be by bending resistance parts 10 and the rear cast of U-shaped positioning element 40 assembling in the time of cast first.Treat that pouring concrete is after 28 days, or concrete strength reaches more than 80%, the pretightning force by crab-bolt bar 406 pretensions to design.Now crab-bolt bar 406 one end are positioned at bending resistance parts 10, and the other end is positioned at beam 20 or post 30, realize the indirect connection of beam 20 or post 30.Crab-bolt bar 406 can be welded to connect with beam gluten and end muscle, and also directly anchoring is entered in the post 30 or beam 20 of both sides.Anchorage length should meet anchor calculating requirement.
Refer to Fig. 8 and Fig. 9, in practice of construction, above-mentioned beam-column connection both can be for the two ends of beam column, as Fig. 8; Also can be for one end of beam column, as Fig. 9; To construction, brought very large convenience.
In one embodiment, 16 welding of bracket bearing or bolt are connected in connecting portion 404.Bracket bearing 16 is connected in connecting portion 404, bracket bearing 16 be positioned at bending resistance parts 10, U-shaped positioning element 40 and support portion 14 under, now, the holding power of 16 pairs of support portions 14 of bracket bearing is maximum.
Refer to Figure 10, in one embodiment, the width a of support portion 14 is more than or equal to the width of beam-ends.The width of support portion 14 is more than or equal to the width of beam-ends, and beam-ends is positioned on support portion 14 completely, and now, the vertical force that beam-ends is subject to can better be transmitted in support portion 14.In the present embodiment, the width a of support portion 14 equals the width of beam-ends.
Refer to Figure 11, in one embodiment, the width A of bracket bearing 16 is more than or equal to the width of post side.The width A of bracket bearing 16 is more than or equal to the width of post side, can pass to better wall or post so that bracket bearing 16 transmits by support portion 14 vertical force of coming.
Please again consult Figure 10 and Figure 11, in one embodiment, the width in described bracket cross section equals distance L between the first side 100 and described the second side 102 and the width sum of support portion 14.
In the present embodiment, the width a of support portion 14 equals the width of beam, it is wide that the width A of bracket bearing 16 equals post, the breadth of section b of support portion 14 presses shearing resistance and the local compression situation calculative determination of < < Code for design of concrete structures > > GB50010, support portion 14 clear height h are according to horizontal distortion demand, according to horizontal distortion formula calculative determination below.Distance L between the first side 100 and the second side 102 is according to horizontal distortion Location of requirement.Width B=the L+b in bracket bearing 16 cross sections; Bracket Cross section Design requires to design according to stressing conditions according to < < Code for design of concrete structures > > GB50010 or < < Code for design of steel structures > > GB50017.
As shown in Figure 12 and Figure 13, the beam-column connection of present embodiment has horizontal Free Transform ability and rotates Free Transform ability, wherein, the first side 100 of bending resistance parts 10 and the distance L between the second side 102 can determine and calculate according to the demand of horizontal distortion, and the formula of calculating is as follows:
Horizontal distortion:
Rotational deformation:
Gap width: L>=δ
level;
In formula: E represents support portion elasticity modulus of materials; I represents second moment of area; F represents the horizontal internal force F that beam-column connection transmits; M represents horizontal bending moment, and h represents the clear height of support portion.
According to above-mentioned formula, just can calculate the distance between the first side 100 and the second side 102, the i.e. size of gap width.
The textural L of requirement is not less than the relevant requirements of < < seismic design provision in building code > > GB500011 to structural joint width.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. bending resistance parts, it is characterized in that, described bending resistance parts are the rectangular structure that metal is made, and described bending resistance parts have the first side and the second side, described the first side and described the second parallel sided, described the first side and described the second side are equipped with installing hole;
The surface adjacent with described the second side with described the first side is equipped with fastener hole.
2. bending resistance parts according to claim 1, is characterized in that, between described the first side and described the second side, are also provided with crossbeam, and described beam vertical is connected in described the first side and the second side.
3. bending resistance parts according to claim 2, is characterized in that, described crossbeam is positioned at the mid point of described the first side and described the second side transverse edge.
4. a beam-column connection, for connecting beam-ends and post side, is characterized in that, comprises support portion, for supporting the bracket bearing of described support portion and the bending resistance parts described in claim 1-3 any one;
Described bracket bearing welding or bolt are connected in described bending resistance parts, post side and support portion;
The welding of described support portion or bolt are connected in described beam-ends.
5. beam-column connection according to claim 4, is characterized in that, also comprises U-shaped positioning element, and described bending resistance parts are positioned at described U-shaped positioning element inside and mate with described U-shaped positioning element.
6. beam-column connection according to claim 5, it is characterized in that, described U-shaped positioning element comprises the first fixed part, the second fixed part and connecting portion, described the first fixed part is parallel with described the second fixed part, described connecting portion is between described the first fixed part and described the second fixed part, and described the first fixed part, the second fixed part, connecting portion are one-body molded;
Described the first fixed part and described the second fixed part are provided with crab-bolt bar, and the diameter of described crab-bolt bar mates with described installing hole.
7. beam-column connection according to claim 6, is characterized in that, described bracket bearing welding or bolt are connected in described connecting portion.
8. beam-column connection according to claim 4, is characterized in that, the width of described support portion is more than or equal to the width of beam-ends.
9. beam-column connection according to claim 4, is characterized in that, the width of described bracket bearing equals the width of post side.
10. according to the beam-column connection described in claim 4-9 any one, it is characterized in that, the width in described bracket bearing cross section equals distance between described the first side and described the second side and the breadth of section sum of described support portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320818324.7U CN203866975U (en) | 2013-12-11 | 2013-12-11 | Bending resistant component and beam column connection joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320818324.7U CN203866975U (en) | 2013-12-11 | 2013-12-11 | Bending resistant component and beam column connection joint |
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| Publication Number | Publication Date |
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| CN203866975U true CN203866975U (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320818324.7U Withdrawn - After Issue CN203866975U (en) | 2013-12-11 | 2013-12-11 | Bending resistant component and beam column connection joint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669592A (en) * | 2013-12-11 | 2014-03-26 | 中国能源建设集团广东省电力设计研究院 | Bending-resistant component and beam-column connecting joint |
-
2013
- 2013-12-11 CN CN201320818324.7U patent/CN203866975U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669592A (en) * | 2013-12-11 | 2014-03-26 | 中国能源建设集团广东省电力设计研究院 | Bending-resistant component and beam-column connecting joint |
| CN103669592B (en) * | 2013-12-11 | 2016-02-24 | 中国能源建设集团广东省电力设计研究院有限公司 | Bending resistance parts and beam-column connection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee before: Guangdong Electric Power Design Institute of CEEC |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20141008 Effective date of abandoning: 20160224 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |