CN217679651U - Single-limb insertion type connecting node structure of reinforced concrete frame in high earthquake region - Google Patents
Single-limb insertion type connecting node structure of reinforced concrete frame in high earthquake region Download PDFInfo
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- CN217679651U CN217679651U CN202221443226.5U CN202221443226U CN217679651U CN 217679651 U CN217679651 U CN 217679651U CN 202221443226 U CN202221443226 U CN 202221443226U CN 217679651 U CN217679651 U CN 217679651U
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Abstract
The utility model discloses a high earthquake district reinforced concrete frame's bayonet connected node structure of single limb, including reinforced concrete frame post, reinforced concrete frame roof beam and set up in the steel shotcrete of reinforced concrete frame post and reinforced concrete frame roof beam connected node department, the steel shotcrete root is fixed with the single connecting plate that corresponds rather than the axial, the relative reinforced concrete frame post of the other end of connecting plate and reinforced concrete frame roof beam insert aslope connected node, and this end be provided with be used for steel shotcrete and connecting plate provide the baffle of axial anchor bearing capacity. The utility model discloses a concrete frame is inserted through root welded baffle's connecting plate single limb to the steel shotcrete, passes power and makes clear and definite, processing is simple and convenient, is favorable to saving the engineering steel volume, reduces the construction degree of difficulty, has better economic benefits and engineering suitability.
Description
Technical Field
The utility model relates to a high earthquake district adopts steel shotcrete-concrete frame structure technical field, concretely relates to high earthquake district reinforced concrete frame's bayonet connected node structure of single limb.
Background
The steel support-concrete frame structure is widely applied to the design of a main power house of a thermal power plant in a high-earthquake area at present. Earthquake disasters are common natural disasters, and in many earthquake disasters at home and abroad, the phenomenon that a building structure is seriously damaged due to weak strength of the joints of the frame structure occurs. Therefore, the engineering technology for increasing the strength of the connection node of the steel support-concrete frame structure needs to be improved.
However, since the steel support and the concrete frame are made of different materials, the connection is relatively complicated, and the research on the connection node is relatively small at present. In practical engineering application, the connection between the beam-column joint of the reinforced concrete frame and the steel support usually adopts embedded iron pieces and embedded steel bars to transmit connection force. The influence of different embedded part construction schemes on stress distribution, cracks and deformation of beam-column nodes is obvious, and the influence of the embedded parts on the static performance of the nodes is large when the supports are arranged at the beam-column nodes: on one hand, the beam cracking position is at a position far away from a beam column node area, specifically at the edge position of an embedded part on the beam; on the other hand, the concrete on the beam is firstly cracked, namely the plastic hinge is firstly generated at the beam end, so that the shearing damage of the core area of the node is effectively prevented. Meanwhile, under the action of different axial-to-pressure ratios, the changes of the main pressure strain and the node stress in the node core area are different. Besides large steel consumption, the conventional connection mode has the defects that various transverse and longitudinal steel bars in a node area are staggered, and the pre-buried iron pieces and the anchor bars are easy to collide with beam column stressed steel bars, so that construction is difficult, and the requirement of transferring the internal force of a structure is difficult to meet. Therefore, the technical demand exists in the field for developing a novel connecting node of a steel support-concrete frame structure, which is clear in stress, economical, reasonable and convenient to construct.
SUMMERY OF THE UTILITY MODEL
To the not enough of existence among the prior art, the utility model aims at providing a high earthquake district reinforced concrete frame's single limb bayonet connected node structure. The utility model discloses a concrete frame is inserted through root welding baffle's connecting plate single limb to the steel shotcrete, passes power clear and definite, processing is simple and convenient, is favorable to saving the engineering steel volume, reduces the construction degree of difficulty, has better economic benefits and engineering suitability.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
the single-limb plug-in type connection node structure of the reinforced concrete frame in the high earthquake region comprises a reinforced concrete frame column, a reinforced concrete frame beam and a steel support arranged at the connection node of the reinforced concrete frame column and the reinforced concrete frame beam, wherein a single connection plate corresponding to the steel support in the axial direction is fixed at the root of the steel support, the other end of the connection plate is obliquely inserted into the connection node relative to the reinforced concrete frame column and the reinforced concrete frame beam, and a baffle which provides axial anchoring bearing capacity for the steel support together with the connection plate is fixed at the end of the connection plate.
Preferably, the reinforced concrete frame column consists of column inner longitudinal bars, column inner stirrups and concrete, and the reinforced concrete frame beam consists of beam inner longitudinal bars, beam inner stirrups and concrete; the connecting plate is inserted between the gaps of the longitudinal ribs in the column and the longitudinal ribs in the beam, and is respectively arranged in parallel with the longitudinal ribs in the column and the longitudinal ribs in the beam.
Further preferably, when the connecting plate needs to be connected with the column inner stirrup and the beam inner stirrup, a through hole for the column inner stirrup and the beam inner stirrup to pass through is formed in the corresponding position of the connecting plate.
Preferably, the steel support is made of H-shaped steel, the connecting plate is made of steel plates, and the connecting plate is welded on a web plate of the steel support in parallel through groove fusion welding.
Preferably, the baffle adopts a T-shaped baffle or an L-shaped baffle.
Preferably, when the baffle adopts a T-shaped baffle, the baffle comprises an end steel plate and two stiffening plates which are vertically connected, the end steel plate is vertically connected to the root of the connecting plate, the two stiffening plates are symmetrically fixed at two right-angle joints of the end steel plate and the connecting plate, and the two stiffening plates are respectively and vertically connected with the end steel plate and the connecting plate.
Further preferably, when the baffle adopts an L-shaped baffle, the L-shaped baffle comprises two fixing plates which are vertically connected, the two fixing plates are vertically connected to the root of the connecting plate, and the middle point of the intersection line section of the two fixing plates is positioned on the central line of the steel support and the connecting plate.
Still further preferably, the width of the end of the connecting plate on the side of the fixing plate is greater than the width of the end of the connecting plate on the other side.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the utility model discloses a connecting piece of root welding T shape/L shape baffle as steel shotcrete and concrete frame nodal connection, has simplified steel shotcrete-concrete frame connected node structure greatly, has reduced the influence of traditional pre-buried ironware connection scheme to node atress performance, and the mode of biography power is clear and definite.
2. Compared with the conventional steel support-concrete frame connecting node, the utility model discloses save engineering steel quantity, improved the availability factor of steel, promoted economic benefits.
3. The utility model discloses simplify the construction process of the pre-buried ironware of conventional steel shotcrete-concrete frame connected node, avoided in the traditional pre-buried ironware connected scheme pre-buried ironware and anchor bar easily with the phenomenon that beam column atress reinforcing bar bumped mutually, and the simple construction of being convenient for has promoted the efficiency of construction greatly.
Drawings
Fig. 1 is a schematic view of a connection node structure in an elevation view according to embodiment 1 of the present invention;
FIG. 2 is a schematic elevation structure view of a steel support, a connecting plate and a baffle plate in embodiment 1 of the invention;
FIG. 3 is a schematic sectional view taken along line a-a in FIG. 2;
fig. 4 is a schematic view of a connection node structure in elevation according to embodiment 2 of the present invention;
fig. 5 is a schematic elevation structure view of a steel support, a connecting plate and a baffle plate in embodiment 2 of the invention;
fig. 6 is a schematic view of the structure of the cross section b-b in fig. 5.
Reference numerals: 1. a reinforced concrete frame column; 2. a reinforced concrete frame beam; 3. supporting steel; 31. a web; 4. a connecting plate; 5. a baffle plate; 51. a T-shaped baffle; 510. an end steel plate; 511. a stiffening plate; 52. an L-shaped baffle plate; 520. a fixing plate; 6. and fusion welding the groove.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is provided in conjunction with the specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
As shown in figures 1-6, in order to solve the construction difficulty of current steel shotcrete-concrete frame structure connected node, be difficult to satisfy the problem that the transmission structure internal force required, the utility model provides a simple structure, construction convenience, the clear and definite high earthquake district reinforced concrete frame's of biography power inserted connected node structure of single limb.
Example 1
As shown in fig. 1-3, this embodiment provides a single-limb plug-in type connection node structure of a reinforced concrete frame in a high earthquake region, which includes a reinforced concrete frame column 1, a reinforced concrete frame beam 2, and a steel support 3 disposed at a connection node between the reinforced concrete frame column 1 and the reinforced concrete frame beam 2, in this embodiment, the steel support 3 is an H-shaped steel support, a single steel connection plate 4 corresponding to the H-shaped steel support in an axial direction is fixed at a root of the H-shaped steel support, another end of the connection plate 4 is obliquely inserted into the connection node relative to the reinforced concrete frame column 1 and the reinforced concrete frame beam 2, and the other end is fixed with a baffle 5 that provides an axial anchoring bearing force for the steel support 3 together with the connection plate, and the baffle 5 in this embodiment is a T-shaped baffle 51, so as to improve the anchoring strength of the steel support 3.
The reinforced concrete frame column 1 consists of column inner longitudinal bars, column inner stirrups and concrete, and the reinforced concrete frame beam 2 consists of beam inner longitudinal bars, beam inner stirrups and concrete; the connecting plate 4 is inserted between the gaps of the longitudinal bar in the column and the longitudinal bar in the beam, and is respectively arranged in parallel with the longitudinal bar in the column and the longitudinal bar in the beam. When the connecting plate 4 needs to be connected with the column inner stirrups and the beam inner stirrups, through holes for the column inner stirrups and the beam inner stirrups to pass through are formed in the corresponding positions of the connecting plate 4.
The connecting plate 4 is a rectangular steel plate, and the connecting plate 4 is welded on a web plate 31 of the H-shaped steel support in parallel through groove fusion welding 6.
The T-shaped baffle 51 comprises an end steel plate 510 and two stiffening plates 511 which are vertically connected, the end steel plate 510 is vertically connected with the root of the connecting plate 4, the two stiffening plates 511 are symmetrically fixed at the two right-angle connecting positions of the end steel plate 510 and the connecting plate 4, and the center point of the end steel plate 510 is positioned on the central line of the H-shaped steel support; the two stiffening plates 511 are respectively and vertically connected with the end steel plate 510 and the connecting plate 4, the stiffening plates 511 are right-angled triangular steel plates, the right-angle positions of the stiffening plates are attached to the center point of the end steel plate 510, the two right-angle sides of the stiffening plates are respectively welded on the plate surfaces of the end steel plate 510 and the connecting plate 4, and the stiffening plates 511 are perpendicular to the intersection line of the end steel plate 510 and the connecting plate 4.
The T-shaped baffle 51 and the connecting plate 4 provide anchoring bearing capacity of axial pulling pressure for the H-shaped steel support, the cross section area of the connecting plate 4 is determined according to the pulling pressure transmitted by the H-shaped steel support, and a conventional calculation mode is adopted.
Example 2
As shown in fig. 4 to 6, the present embodiment is different from embodiment 1 in that:
the baffle 5 of this embodiment adopts L-shaped baffle 52, and it includes two fixed plates 520 of perpendicular connection, and two fixed plates 520 all are connected perpendicularly in the root of connecting plate 4, and the intersection line section mid point of two fixed plates 520 is located the central line that H shaped steel supported and connecting plate 4.
The connecting plate 4 of this embodiment is made of a wedge-shaped steel plate, and the width of the end of the connecting plate 4 on the side of the fixing plate 520 is greater than the width of the end of the connecting plate 4 on the other side.
In examples 1 and 2, the section steel was supported as an H-section steel; it is understood that in other embodiments, other types of steel sections are equally suitable. In the embodiments 1 and 2, the node is connected with only one H-shaped steel support; it will be appreciated that in other embodiments, the number and orientation of the profile supports may be adjustable.
According to the utility model discloses a description and attached drawing, the field technical personnel make or use very easily the utility model discloses a high earthquake district reinforced concrete frame's single-limb bayonet connected node structure to can produce the positive effect recorded in the utility model.
Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated on the drawings, it is only for convenience of describing the present invention and simplifying the description, but it does not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation and be operated, therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances with reference to the drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention in any form, and all the technical matters of the present invention are all within the protection scope of the present invention for any simple modification and equivalent change of the above embodiments.
Claims (8)
1. The utility model provides a high earthquake district reinforced concrete frame's bayonet connected node structure of single limb, includes reinforced concrete frame post (1), reinforced concrete frame roof beam (2) and set up in reinforced concrete frame post (1) and reinforced concrete frame roof beam (2) connected node department's steel shotcrete (3), its characterized in that: the root of the steel support (3) is fixed with a single connecting plate (4) corresponding to the axial direction of the steel support, the other end of the connecting plate (4) is obliquely inserted into the connecting node relative to the reinforced concrete frame column (1) and the reinforced concrete frame beam (2), and the end of the connecting plate is fixed with a baffle (5) which provides axial anchoring bearing capacity for the steel support (3) together with the connecting plate.
2. The single-limb insertion-type connection node structure of a reinforced concrete frame for high-earthquake areas according to claim 1, wherein: the reinforced concrete frame column (1) consists of column inner longitudinal bars, column inner stirrups and concrete, and the reinforced concrete frame beam (2) consists of beam inner longitudinal bars, beam inner stirrups and concrete; the connecting plate (4) is inserted between the gaps of the longitudinal ribs in the column and the longitudinal ribs in the beam, and is respectively arranged in parallel with the longitudinal ribs in the column and the longitudinal ribs in the beam.
3. The single-limb insertion-type connection node structure of a reinforced concrete frame for high-earthquake areas according to claim 2, wherein: when the connecting plate (4) needs to be connected with the column inner stirrups and the beam inner stirrups, through holes for the column inner stirrups and the beam inner stirrups to pass through are formed in the corresponding positions of the connecting plate (4).
4. The single-limb insertion-type connection node structure of a reinforced concrete frame for high-earthquake areas according to claim 1, wherein: the steel shotcrete (3) adopts H shaped steel to support, connecting plate (4) adopt the steel sheet, connecting plate (4) through groove fusion penetration welding (6) parallel weld in on web (31) of steel shotcrete (3).
5. The single-limb insertion-type connection node structure of a reinforced concrete frame for high-earthquake areas according to claim 1, wherein: the baffle (5) adopts a T-shaped baffle (51) or an L-shaped baffle (52).
6. The single-limb insertion-type connection node structure of a reinforced concrete frame for high-earthquake areas according to claim 5, wherein: when the baffle (5) is a T-shaped baffle (51), the T-shaped baffle comprises an end steel plate (510) and two stiffening plates (511) which are vertically connected, the end steel plate (510) is vertically connected to the root of the connecting plate (4), the two stiffening plates (511) are symmetrically fixed at two right-angle connecting positions of the end steel plate (510) and the connecting plate (4), and the two stiffening plates (511) are respectively and vertically connected with the end steel plate (510) and the connecting plate (4).
7. The single-limb insertion-type connection node structure of the reinforced concrete frame in the high earthquake region according to claim 5, wherein: when the baffle (5) adopts the L-shaped baffle (52), the L-shaped baffle comprises two fixing plates (520) which are vertically connected, the two fixing plates (520) are vertically connected to the root of the connecting plate (4), and the middle points of the intersection line sections of the two fixing plates (520) are positioned on the central line of the steel support (3) and the connecting plate (4).
8. The single-limb insertion-type connection node structure of a reinforced concrete frame in a high earthquake region according to claim 7, wherein: the width of the end of the connecting plate (4) at the side of the fixing plate (520) is larger than that of the end of the connecting plate (4) at the other side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221443226.5U CN217679651U (en) | 2022-06-09 | 2022-06-09 | Single-limb insertion type connecting node structure of reinforced concrete frame in high earthquake region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221443226.5U CN217679651U (en) | 2022-06-09 | 2022-06-09 | Single-limb insertion type connecting node structure of reinforced concrete frame in high earthquake region |
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| Publication Number | Publication Date |
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| CN217679651U true CN217679651U (en) | 2022-10-28 |
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| CN202221443226.5U Active CN217679651U (en) | 2022-06-09 | 2022-06-09 | Single-limb insertion type connecting node structure of reinforced concrete frame in high earthquake region |
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- 2022-06-09 CN CN202221443226.5U patent/CN217679651U/en active Active
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