CN211421381U - Primary and secondary beam structure - Google Patents
Primary and secondary beam structure Download PDFInfo
- Publication number
- CN211421381U CN211421381U CN201921677086.6U CN201921677086U CN211421381U CN 211421381 U CN211421381 U CN 211421381U CN 201921677086 U CN201921677086 U CN 201921677086U CN 211421381 U CN211421381 U CN 211421381U
- Authority
- CN
- China
- Prior art keywords
- secondary beam
- primary
- anchoring
- cast
- anchor
- 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
Images
Abstract
The utility model provides a primary and secondary beam structure, including girder, secondary beam and anchor assembly, girder, secondary beam all include prefabricated portion and cast-in-place portion, anchor assembly includes pre-buried end and link, pre-buried end anchor in the prefabricated portion of secondary beam, the link overlap joint in the top of the prefabricated portion of girder, contained angle between anchor assembly's pre-buried end and the link is 90-150, be provided with at least one clearing hole on the link, be provided with first anchor rod in the clearing hole. The primary and secondary beam connecting structure in the scheme is simple and reliable, the position of the secondary beam on the main beam can be effectively fixed, and the temporary supporting and shearing force bearing functions are achieved; meanwhile, the main beam does not need special construction measures, the secondary beam is placed freely, and the fault tolerance rate of site construction is high.
Description
Technical Field
The utility model belongs to the technical field of the assembly type structure, concretely relates to primary and secondary beam structure.
Background
The general primary and secondary beam connecting structure in the prior art is characterized in that a groove is arranged on a prefabricated main beam, concrete lugs arranged at the end part of the secondary beam are built in a gap of the main beam, and the primary and secondary beams are connected into a whole by pouring superposed layer concrete of the main beam and the secondary beam. Therefore, the shearing force is born mainly by the steel bars and the concrete at the end part of the secondary beam. When the main beam and the secondary beam are produced, the arrangement of the steel bars is complex, a notch needs to be arranged on a production die, the production process is relatively complex, and the fault tolerance rate of on-site construction is low. The other main and secondary beam connecting structure is characterized in that a groove is formed in a main beam, a reinforcing steel plate is embedded in the bottom of the groove, one end of a connecting piece formed by a single-rib or double-rib steel plate is embedded in precast concrete at the end part of a secondary beam, one end of the connecting piece extends out of the side face and is arranged in the groove of the main beam, and the main and secondary beams are connected into a whole by pouring laminated layer concrete. In several kinds of primary and secondary beam structures among the prior art, the production mould and the production technology of primary and secondary beam are more complicated, and during site operation, the vertical reinforcing bar of main girder and secondary beam wears to establish and takes place to interfere easily, influences the efficiency of construction. The technical scheme of the prefabricated overlapped primary and secondary beam connecting piece and the connecting structure thereof as described in the invention patent with the publication number of CN103938736A has the following defects: (1) the connecting piece lapped on the upper part of the precast section of the main beam has a certain height and is easy to interfere with the longitudinal steel bar in the cast-in-place layer of the main beam; (2) the supporting ends are erected on the prefabricated layer of the main beam, and no secondary beam temporary fixing structure is arranged, so that the vertical support of the bottom needs to be coordinated simultaneously when the secondary beam prefabricated layer is installed, and the risk that the secondary beam prefabricated layer slips from the main beam prefabricated layer is avoided; (3) because the support end is erected on the prefabricated layer of the main beam, the local part of the prefabricated layer of the main beam is easily stressed to damage concrete, a support base plate needs to be pre-embedded in the prefabricated layer of the main beam or erected on site, and the production and construction are complex. Therefore, a primary and secondary beam structure which does not need to be provided with a groove during production, is easy to penetrate through longitudinal bars in site construction and is convenient to construct needs to be developed.
The utility model has the following contents:
the utility model aims at providing a primary and secondary beam structure, the complicated and site operation of primary and secondary beam structure production mould of solving among the prior art takes place the reinforcing bar easily and interferes the technical problem that leads to the construction inconvenience.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a primary and secondary beam structure comprises a primary beam, a secondary beam and an anchoring piece, wherein the primary beam and the secondary beam respectively comprise a prefabricated part and a cast-in-place part, the anchoring piece comprises a pre-buried end and a connecting end, the pre-buried end is anchored in the prefabricated part of the secondary beam, the connecting end is lapped on the top of the prefabricated part of the primary beam, an included angle between the pre-buried end of the anchoring piece and the connecting end is 90-150 degrees, at least one through hole is formed in the connecting end, and a first anchoring rod is arranged in the through hole. Inside the stirrup in the cast-in-place portion through stretching into the girder with first anchor rod in this scheme, can play and carry out the effect of temporary fixation with anchor assembly and secondary beam prefabricated part and girder, when the installation secondary beam carries out the vertical support piece's of bottom regulation, anchor assembly can undertake the support function of partly secondary beam prefabricated part, and it is more convenient to be under construction like this.
Preferably, the anchoring part is a first bent steel plate, and the embedded end of the first bent steel plate is provided with a plurality of second anchoring rods perpendicular to the surface of the first bent steel plate. Set up like this, the second anchor pole can show the pre-buried anchor power of holding in the concrete of secondary beam prefabricated part of reinforcing first steel sheet of buckling.
Preferably, the bottom of the connecting end is vertically provided with a supporting plate. The contact area between the connecting end and the prefabricated part of the main beam can be increased, and the local pressure of the connecting end on the concrete of the prefabricated part of the main beam is reduced.
Preferably, the anchoring part comprises two second bent steel plates which are parallel to each other, and the second bent steel plates are connected through a plurality of second anchoring rods. Set up like this, two second steel sheet connections of buckling can increase with the anchor ability of the concrete of main beam and secondary beam, on the other hand can improve the anti-drawing ability of connecting piece in the concrete.
Preferably, the stirrup of the cast-in-place part of the main beam is an open hoop. When the stirrups are arranged as the open stirrups, on one hand, the longitudinal reinforcements of the cast-in-place part of the main beam are conveniently placed from the opening of the open hoops, so that the longitudinal reinforcements can be conveniently penetrated and arranged; on the other hand, the first anchoring rod of the connecting piece can be placed in from the opening of the opening hoop, and the arrangement of the prefabricated part of the secondary beam is convenient.
Preferably, the connecting end is further provided with a positioning notch or a positioning hole, and the longitudinal rib of the main beam is arranged in the positioning notch or the positioning hole. Set up like this, the clearing hole can be put into from location breach or locating hole to the vertical muscle of first anchor pole or the cast-in-place portion of girder to further strengthen the cast-in-place portion of girder and the bar connection of connecting piece, improve primary and secondary roof beam connection structure's wholeness and atress performance.
Preferably, the length of the first anchoring rod is greater than the distance between two adjacent stirrups on the main beam. Set up like this, just first anchor pole is put into two inside backs of stirrup, can hang the prefabricated part of secondary beam on the girder through first anchor pole with the link card of connecting piece in the cast-in-place portion of girder.
Preferably, the height of the connecting end is lower than the height of a longitudinal rib in the cast-in-place part of the main beam. The arrangement avoids the interference between the connecting piece and the longitudinal steel bar of the cast-in-place part of the main beam.
The utility model discloses a scheme includes following beneficial effect at least:
1. compared with a concrete lug-raising connecting piece, the main beam and the secondary beam in the scheme are simple and reliable in connecting structure, can effectively fix the positions of the secondary beams on the main beam, and play a role in temporarily supporting and bearing shearing force; meanwhile, the main beam does not need special construction measures, the secondary beam is freely placed, and the fault tolerance rate of site construction is high;
2. the anchoring part in the scheme has the advantages of simple structure, convenience in manufacturing, reliable function and capability of effectively reducing cost.
Drawings
Fig. 1 is a perspective view of a primary and secondary beam structure in example 1 (hiding a cast-in-place portion of the primary and secondary beam);
FIG. 2 is a cross-sectional side view of the primary and secondary beam structure of FIG. 1 (hiding the stirrups of the secondary beams);
FIG. 3 is a perspective view of an anchor in embodiment 1;
FIG. 4 is a perspective view of the primary and secondary beam structure of example 2 (hiding the cast-in-place portion of the primary and secondary beams, the prefabricated portion of the secondary beam being cut in half to show the anchor);
FIG. 5 is a perspective view of an anchor in embodiment 2;
in the figure: 11-a main beam prefabricating part, 13-a first anchoring rod, 21-a secondary beam prefabricating part, 23-a secondary beam bottom rib, 3-an embedded stirrup, 4-an anchoring part, 5-an embedded end, 7-a through hole, 8-a second anchoring rod, 9-a second bent steel plate and 10-a stirrup cap.
Detailed Description
The following are provided as preferred embodiments of the present invention to aid in further understanding of the invention. It should be understood by those skilled in the art that the description of the embodiments of the present invention is exemplary only, and is not intended as limiting the inventive aspects.
Example 1
Referring to fig. 1, the primary and secondary beam structure in this embodiment includes a primary beam, a secondary beam and an anchor 4, the primary beam and the secondary beam each include a prefabricated part and a cast-in-place part (not shown), and the top side of the prefabricated part 11 of the primary beam is flush with the top side of the prefabricated part 21 of the secondary beam. Anchor assembly 4 includes the first steel sheet of buckling, and the first steel sheet of buckling includes interconnect integrated into one piece's pre-buried end 5 and link, and the contained angle between pre-buried end 5 and the link is 120. Referring to fig. 2, the connection end is provided with a through hole 7, a first anchoring rod 13 is arranged in the through hole 7, and the length of the first anchoring rod 13 is larger than the distance between two adjacent stirrups on the main beam. Four second anchoring rods 8 are arranged on the embedded end 5 of the anchoring piece 4, the lower half portion of the embedded end 5 is anchored in the prefabricated portion of the secondary beam, and the second anchoring rods 8 are all anchored in the concrete of the prefabricated portion 21 of the secondary beam. The height of the connecting end is lower than that of a longitudinal rib in the cast-in-place part of the main beam; after cast-in-place concrete on the upper portions of the primary and secondary beams is poured, the connecting ends and the upper half portions of the anchoring ends are respectively anchored in the cast-in-place portions of the primary beams and the secondary beams, and the cast-in-place portions of the primary beams and the cast-in-place portions of the secondary beams are connected into a whole to connect the primary beams and the secondary beams together.
On the basis of the above embodiment, in another embodiment, the connecting end of the anchor 4 is provided with a notch, and the notch is communicated with the passing hole 7. Set up the anchor reinforcing bar like this and can follow the breach and directly put into clearing hole 7, reduce the operation degree of difficulty that passes clearing hole 7 with anchor reinforcing bar or indulge the muscle, improve the efficiency of construction.
Referring to fig. 3, the anchor 4 in this embodiment is made of a thick steel plate with a bent angle shape, and the thickness of the steel plate is 30 mm; the thick steel plate has strong compression resistance and shear resistance. In other embodiments, the anchoring member 4 can be made of I-shaped steel or angle steel instead of steel plate, and the thickness of the anchoring member can be 10-60 mm. The second anchoring member 4 made of four reinforcing steel bars symmetrically distributed left and right is arranged on the embedded end 5 of the anchoring member 4, so that the anchoring force of the embedded end 5 and concrete in the secondary beam prefabricated part 21 can be enhanced, and the drawing resistance of the anchoring member 4 is improved. In other embodiments, the number of the reinforcing steel bars distributed symmetrically from left to right can be between 4 and 10. Or the anchoring plate, the reinforcing rib and other structural forms are adopted to replace the anchoring piece 4 in the embodiment, and the functions are the same. Open stirrups are anchored in the prefabricated parts of the main beam and the secondary beam, the lower half part of each stirrup of the cast-in-place part is anchored in the concrete of the prefabricated part, the upper half part of each stirrup of the cast-in-place part extends out of the surface of the prefabricated part and is anchored in the concrete of the cast-in-place part, longitudinal reinforcements of the main beam and the cast-in-place part of the secondary beam are placed into the openings of the open stirrups, and the first anchoring rods 13 are also placed into the openings of the open stirrups and penetrate through the.
The construction steps of the primary and secondary beams in the embodiment include:
1. respectively producing a main beam prefabricated part 11 and a secondary beam prefabricated part 21, wherein when the secondary beam is produced, the lower half part of the embedded end 5 of the anchoring part 4 is anchored at the middle position of the end part of the secondary beam prefabricated part 21, and the embedded end 5 is parallel to the long axis of the secondary beam;
2. after the main beam prefabrication part 11 is hoisted and positioned, the secondary beam prefabrication part 21 is hoisted, and the secondary beam prefabrication part 21 is placed at the designated connection position of the main beam prefabrication part 11;
3. the first anchoring rod 13 penetrates through the through hole 7 of the connecting end of the anchoring part 4, then penetrates through the longitudinal bars of the primary beam and the secondary beam respectively, and a stirrup cap 10 is placed and bound on the top side of the extended embedded stirrup 3;
4. and erecting a template, pouring concrete of cast-in-place parts on the top sides of the primary beam and the secondary beam, removing the template after curing and forming, and connecting the primary beam and the secondary beam together by the cast-in-place concrete.
The main beam prefabrication part 11 in this embodiment is simple in process when producing, need not to set up the recess in the position that the secondary beam connects like in the prior art, with the pre-buried end 5 the lower half of anchor assembly 4 anchor in the concrete when secondary beam prefabrication part 21 produces. The lapped position of secondary beam and girder is adjustable during the construction, therefore the efficiency of construction is higher, and the practicality is stronger. After the concrete of the cast-in-place parts of the main beam and the secondary beam is poured, the anchoring parts 4 are all coated by the concrete, so that the problem of rusting is avoided, and meanwhile, the fireproof safety is also met. After the first anchoring rod 13 penetrates through the anchoring part 4, the secondary beam can be hung on the main beam, and temporary support is provided for the secondary beam during construction; in case of earthquake, the anchor 4 can partially take on the shearing resistance if the cast-in-place layer concrete of the primary and secondary beams is damaged.
Example 2
Referring to fig. 4, the primary and secondary beam structure in this embodiment includes a primary beam, a secondary beam, and an anchor 4, wherein the primary and secondary beams have the same structure as in embodiment 1, and each include a prefabricated part and a cast-in-place part. The lower half part of the anchoring piece 4 is embedded in the middle of the end part of the secondary beam prefabricating part 21, the connecting end is placed above the main beam prefabricating part 11, a through hole 7 is formed in the connecting end, and anchoring reinforcing steel bars penetrate through the through hole 7; and connecting the primary and secondary beams together after pouring the concrete of the cast-in-place part of the primary and secondary beams.
Referring to fig. 5, the anchor 4 in this embodiment includes 2 second bent steel plates 9 parallel to each other, and the second bent steel plates 9 are connected together by 4 second anchor rods 8. The second steel sheet 9 of buckling includes integrated into one piece interconnect's pre-buried end 5 and link, and wherein the link highly is less than the vertical muscle of girder, and the contained angle between pre-buried end 5 and the link is 150. The distance between the 2 second bent steel plates 9 is smaller than the distance between two longitudinal ribs in the secondary beam, so that the embedded end 5 cannot interfere with the longitudinal ribs (namely, bottom ribs) on two sides when being anchored in the concrete of the prefabricated part 21 of the secondary beam.
The connecting end is also provided with a positioning gap (not shown in the figure), and the longitudinal bar of the main beam is arranged in the positioning gap. The anchoring elements 4 thus serve, on the one hand, to temporarily support the secondary beam during construction and, on the other hand, to exert a shear-resisting action in the event of an earthquake or the like.
In this embodiment, the bottom of link is equipped with the layer board of horizontal direction (not drawn in the picture), layer board and link mutually perpendicular, and when setting up the link on the prefabricated part top side of girder, the layer board is pressed on the concrete of prefabricated part, can reduce the pressure of link to the bottom side concrete, avoids the concrete to receive the pressure too big and damage.
The construction method of the primary and secondary beam structure in this embodiment is substantially the same as that in embodiment 1, and the specific differences are as follows: and 3, penetrating the longitudinal steel bar of one main beam into the positioning notch of the connecting end.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application and not for limiting the protection scope thereof, and although the present application is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: numerous variations, modifications, and equivalents will occur to those skilled in the art upon reading the present application and are within the scope of the claims as issued or as granted.
Claims (7)
1. A primary and secondary beam structure comprises a primary beam, a secondary beam and an anchoring piece, wherein the primary beam and the secondary beam respectively comprise a prefabricated part and a cast-in-place part, the anchoring piece comprises a pre-buried end and a connecting end, the pre-buried end is anchored in the prefabricated part of the secondary beam, and the connecting end is lapped on the top of the prefabricated part of the primary beam.
2. The primary and secondary beam structure of claim 1, wherein the anchoring member is a first bent steel plate, and the embedded end of the first bent steel plate is provided with a plurality of second anchoring rods perpendicular to the surface of the first bent steel plate.
3. The primary and secondary beam structure according to claim 2, wherein a bottom of the connecting end is vertically provided with a support plate.
4. The primary and secondary beam structure of claim 1, wherein the anchoring member comprises two second bent steel plates parallel to each other, and the second bent steel plates are connected with each other through a plurality of second anchoring rods.
5. The primary and secondary beam structure of claim 1, wherein the stirrup of the cast-in-place portion of the primary beam is a split stirrup.
6. The primary and secondary beam structure according to any one of claims 1 to 5, wherein the connecting end is further provided with a positioning notch or a positioning hole, and the longitudinal bar of the primary beam is arranged in the positioning notch or the positioning hole.
7. The primary and secondary beam structure according to any one of claims 1-5, wherein the length of the first anchor bar is greater than the spacing between two adjacent stirrups on the primary beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921677086.6U CN211421381U (en) | 2019-10-09 | 2019-10-09 | Primary and secondary beam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921677086.6U CN211421381U (en) | 2019-10-09 | 2019-10-09 | Primary and secondary beam structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211421381U true CN211421381U (en) | 2020-09-04 |
Family
ID=72245550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921677086.6U Active CN211421381U (en) | 2019-10-09 | 2019-10-09 | Primary and secondary beam structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211421381U (en) |
-
2019
- 2019-10-09 CN CN201921677086.6U patent/CN211421381U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103572873B (en) | Assembled integral floor and construction method thereof | |
| CN202925762U (en) | Novel reinforced concrete superposed beam | |
| KR101533576B1 (en) | Composite beam having truss reinforcement embedded in a concrete | |
| CN110318490B (en) | Construction method for connecting laminated slab and secondary beam and node connecting structure | |
| CN214739251U (en) | Assembled combination tie-beam window opening component and connection structure thereof | |
| CN110644675A (en) | Laminated beam connecting node, construction method and laminated beam production process | |
| CN113738007A (en) | Truss floor plate | |
| CN113026993A (en) | Assembly type combined connecting beam window opening component, structure and manufacturing and construction method | |
| CN205153139U (en) | Prefabricated building of amalgamation | |
| CN108999288B (en) | Prefabricated assembled beam column node | |
| CN203334423U (en) | Rebar joint structure of prefabricated stacked balcony slab and main body | |
| CN211421381U (en) | Primary and secondary beam structure | |
| CN210067020U (en) | Sub-structure assembled frame structure | |
| CN202925730U (en) | Assembling integrated type floor | |
| CN112144412A (en) | Construction method of prefabricated assembled intercolumnar tie beam | |
| CN209891421U (en) | Cast-in-place concrete frame beam and concrete coincide floor connection structure | |
| CN108222372B (en) | Shear connector and manufacturing method thereof, and profile steel concrete column and pouring method thereof | |
| CN214739012U (en) | Assembled double-connecting-beam combined shear wall component and connecting structure thereof | |
| CN105275091A (en) | Prefabricated slab and prefabricated beam connection node and construction method thereof | |
| CN211421372U (en) | Prefabricated beam type balcony and connecting structure of prefabricated beam type balcony and prefabricated wall board | |
| CN210562613U (en) | Vertical dry-type connecting node of prefabricated assembled frame post of keyway that shears in area | |
| CN210459550U (en) | Connecting joint of reinforced concrete column and flat slab | |
| CN210562612U (en) | Hinged nondestructive energy-consumption prefabricated frame beam-column joint | |
| CN110670716A (en) | Prefabricated beam type balcony, connection structure of prefabricated beam type balcony and prefabricated wall board and construction method | |
| CN113026994B (en) | Assembly type double-connecting-beam combined shear wall component, structure and manufacturing and construction method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 410000, shaping street, Changsha, Kaifu City, Hunan Province Patentee after: Zhuyou Zhizao Technology Industry Group Co.,Ltd. Address before: 10 Zhongshi Road, shaping street, Kaifu District, Changsha City, Hunan Province Patentee before: Zhongmin zhuyou Technology Industry Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211222 Address after: 5 / F, office building 2, Zhongmin zhuyou Co., Ltd., No. 10, Zhongshi Road, shaping street, Kaifu District, Changsha City, Hunan Province, 410000 Patentee after: Zhuyou Zhizao Technology Investment Co.,Ltd. Address before: No. 410000, shaping street, Changsha, Kaifu City, Hunan Province Patentee before: Zhuyou Zhizao Technology Industry Group Co.,Ltd. |