CN210483082U - A prestressed prefabricated structure and a combined device for threading and feeding steel strands - Google Patents
A prestressed prefabricated structure and a combined device for threading and feeding steel strands Download PDFInfo
- Publication number
- CN210483082U CN210483082U CN201920796806.4U CN201920796806U CN210483082U CN 210483082 U CN210483082 U CN 210483082U CN 201920796806 U CN201920796806 U CN 201920796806U CN 210483082 U CN210483082 U CN 210483082U
- Authority
- CN
- China
- Prior art keywords
- threading
- steel strand
- shaft
- floor
- gear
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
本实用新型公开了一种预应力预制装配式结构及穿送钢绞线组合装置，包括钢绞线、穿线机、输送轴、临时自锁装置和楼层固定装置。所述穿线机包括穿线主动轴、穿线被动轴、齿轮、转向节、轴承和动力装置。所述输送轴设在穿线机与柱或剪力墙底部入口处之间，用来转变钢绞线穿送方向并减小转弯处摩擦阻力。所述临时自锁装置包括螺旋千斤顶、分配梁和工作锚具。所述楼层固定装置处于每层楼板与钢绞线交接处，将每层楼面结构与钢绞线相连。本实用新型能够快速、有效得向竖向受力构件中穿送钢绞线，将钢绞线沿结构全高连续布置并与每一层楼面结构相连，为推广预应力预制装配式结构开创了一条新途径。
The utility model discloses a prestressed prefabricated assembled structure and a combined device for threading steel strands, comprising a steel strand, a threading machine, a conveying shaft, a temporary self-locking device and a floor fixing device. The threading machine includes a threading driving shaft, a threading driven shaft, a gear, a steering knuckle, a bearing and a power device. The conveying shaft is arranged between the threading machine and the entrance at the bottom of the column or shear wall, and is used to change the threading direction of the steel strand and reduce the frictional resistance at the turning point. The temporary self-locking device includes a screw jack, a distribution beam and a working anchor. The floor fixing device is located at the junction of each floor slab and the steel strand, and connects the floor structure of each floor with the steel strand. The utility model can quickly and effectively pass the steel strands into the vertical force-bearing members, and continuously arrange the steel strands along the full height of the structure and connect with the floor structure of each floor, which creates a new concept for popularizing the prestressed prefabricated structure. a new way.
Description
Technical Field
The utility model relates to a building structure engineering technical field, concretely relates to prefabricated assembled structure of prestressing force and wear to send steel strand wires composite set.
Background
With the development of engineering construction, overlength structures are increasingly appearing in the construction field. In the existing construction technology, if the length of a member exceeds a certain range, the structure cannot be constructed at one time, the steel strand is segmented, and the segmented prestressed steel strand is connected by using a lengthening device. Although the prestressed lengthening device has simple structure and convenient installation, the prestressed lengthening device is easy to cause quality hidden troubles such as anchoring failure and the like. The prestressed prefabricated assembly type structure arranges the steel strands at full height and fixes the steel strands with the floor of each floor, does not need to use a lengthening device, avoids hidden danger and reduces cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at arranging a steel strand wires total length in succession conveniently, fast, be favorable to vertical member continuous wiring such as shear force wall, post, provide a prefabricated assembled structure of prestressing force and wear to send steel strand wires composite set.
The utility model adopts the technical proposal that: a prestress prefabricated structure and threading steel strand combined device comprises a steel strand, a threading machine, a conveying shaft, a temporary self-locking device and a floor fixing device;
the threading machine comprises a threading driving shaft, a threading driven shaft, a gear, a steering knuckle, a bearing and a power device, wherein the threading driving shaft is connected with the power device and drives the threading driven shaft to rotate through the gear; the steering knuckle is arranged on a threading driven shaft, the driven shaft can rotate around the steering knuckle to open and close, a steel strand is placed into the threading opening or the threading machine is removed when the driven shaft is opened, the steel strand is placed into the threading opening, and the threading machine works to continuously feed the steel strand into the threading pore passage; a shutter is arranged outside a bearing at one end of the threading driven shaft to fix the threading driven shaft;
the conveying shafts are arranged between the threading machine and the bottom inlets of the columns or the shear walls in three pairs, and the transmission between the shafts is chain transmission and is used for changing the threading direction of the steel strands and reducing the friction resistance at the turning part; the temporary self-locking device comprises a screw jack, a distribution beam and a working anchor, the working anchor is placed on the distribution beam, the screw jack is arranged below the distribution beam, the steel strand is locked when the penetration of each layer of steel strand is finished, the steel strand is prevented from falling back during the construction of other structures on the layer, and the jack is unloaded and the anchor is removed before a layer of column or shear wall is installed; floor fixing device is in every floor and steel strand wires handing-over department, with the pre-buried steel sheet welding in the floor, the purpose links to each other every floor structure and steel strand wires, plays interim fixed action during the construction, and the construction is ended, and final fastening plays permanent fixed action.
Preferably, the prestressed prefabricated structural steel strand is continuously arranged in full height.
Preferably, the threading driving shaft of the threading machine is consistent with the gear on the driven shaft in size.
Preferably, the conveying shafts have three pairs, two gears, one large gear and one small gear, are arranged on the inner shaft of the conveying shaft close to the threading machine, the diameters of the large gear and the outer shaft gear are the same, the small gear and the rest two pairs of inner shaft gears rotate at the same speed through chain transmission, only one gear is arranged on the inner shaft and the outer shaft of the two pairs of conveying shafts far away from the threading machine, and the diameters of the outer shaft gears are larger than the diameters of the inner shaft gears.
Preferably, the utility model discloses the power device's of threading machine constitution has two kinds of schemes. The first scheme is as follows: the motor drives a speed reducer which is connected with a threading driving shaft; scheme II: the power device comprises three groups of stress plates, two jacks, an oil pump and a track, wherein the three groups of stress plates are equidistantly arranged on the track, the jacks stretch and move alternately to respectively push the three groups of stress plates, the stress plates are transmitted through the jacks along with the track after being pressed by the jacks, and after passing through the jacks, springs bounce the stress plates to wait for the jacks to act on thrust again to enable the track to continuously operate, so that the threading driving shaft is driven to continuously rotate. The first scheme is high in threading speed, but low in thrust, and large in size and weight of the whole machine; scheme two thrust is big, and oil pump and jack separable placing, machine remove convenient but threading speed is slower. And selecting a proper power device according to the actual situation on site.
Prefabricated buildings are built layer by layer from the bottom up. The general construction sequence is as follows: foundation, a layer of column (wall), a layer of beam slab; two-layer column (wall), two-layer beam slab and the like, wherein the work of the previous layer is carried out on the basis of the completion of the work of the next layer. The steel strand used in the prestressed prefabricated building structure plays a main role in a vertical structural column (wall), generally, when the next layer of work is completed, the works of wiring, tensioning, anchor sealing and the like of the prestressed steel strand are completely completed, when the previous layer of work is constructed, the steel strand is arranged to be continuously elongated upwards, and the steel strand is required to be continuously elongated through a lengthening device after the steel strand is disconnected from the layer to the layer. The utility model discloses a threading machine wears steel strand wires into prefabricated assembled component, and when the component installation ended, the interim stretch-draw of steel strand wires was fixed, when going up the installation of one deck component, steel strand wires upwards extend through threading machine again continuously, treat that this layer of component installation finishes, go the interim fixed again, guarantee steel strand wires and lay wire in succession between the floor. After the whole building member is installed, each layer of steel stranded wire is connected with a connecting piece pre-embedded in the floor structure through a bolt and a pressing plate. The utility model discloses both having arranged steel strand wires from the bottom up in succession, can guarantee again that every floor structure department is reliably connected with steel strand wires.
Has the advantages that: the utility model discloses arrange prestressing force steel strand wires along full height in succession in the prefabricated assembled structure of prestressing force to link to each other with each floor structure, the atress is better and stable. The prestressed steel strand adopts a bonding type, a corrugated pipe is embedded in the prefabricated part, the steel strand is penetrated, and cement slurry is injected after final tension is finished to form an effective prestressed integral member. The power device of the threading machine has multiple schemes, and a proper scheme can be selected according to the specific requirements of the progress requirement of a construction site, the consumption of steel strands and the like. The threading and conveying steel strand combined device is suitable for continuous wiring of vertical components such as shear walls and columns, solves the problems of speed and friction resistance of threading and conveying steel strands in the threading and conveying process, temporary fixing of the steel strands in the construction process and permanent fixing of the steel strands after construction is finished, and safely and efficiently threads the steel strands upwards into vertical stress components such as prefabricated columns or shear walls.
Drawings
FIG. 1 is a schematic view of the pre-stressed prefabricated structure of the present invention;
FIG. 2 is a schematic view of the threader;
FIG. 3 is a cross-sectional view of the threader 1-1 (shutter);
FIG. 4 is a schematic view of a knuckle on a threading driven shaft;
FIG. 5 is a schematic view of the rotation of the threading driven shaft;
FIG. 6 is a schematic view of the operation of the transport shaft;
FIG. 7 is a schematic view of a temporary self-locking device;
FIG. 8 is a schematic view of a floor fixture;
FIG. 9 is a schematic view of a second embodiment of the power plant;
fig. 10 is a partial enlarged view of the force-bearing plate of fig. 8.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
As shown in fig. 1-10, a prestressed prefabricated structure and threading steel strand combination device comprises a steel strand 11, a threading machine 12, a conveying shaft 7, a temporary self-locking device 13 and a floor fixing device 14;
the threading machine 12 comprises a threading driving shaft 1, a threading driven shaft 2, a gear 3, a steering knuckle 5, a bearing 4 and a power device 6, wherein the threading driving shaft 2 is connected with the power device 6, and the threading driven shaft 2 is driven to rotate by the gear 3; the steering knuckle 5 is mounted on a threading driven shaft 2, the threading driven shaft 2 can be rotationally opened and closed around the steering knuckle 5, a steel strand 11 is placed in or the threading machine 12 is removed when the threading driven shaft 2 is opened, the steel strand 11 is placed in a threading opening 19, and the threading machine 12 works to continuously feed the steel strand 11 into a threading pore passage; a shutter is arranged outside a bearing 4 at one end of the threading driven shaft and plays a role in fixing the threading driven shaft;
the conveying shafts 7 are three pairs and are arranged between the threading machine 12 and the bottom inlet of the column or the shear wall, and a pinion on the inner shaft of the shaft 1 and a pinion on the shaft 3 of the shaft 2 have the same rotating speed through chain transmission to change the threading direction of the steel strand 11 and reduce the friction resistance at the turning part; the temporary self-locking device 13 comprises a screw jack 8, a distribution beam 9 and a working anchor 10, the working anchor 10 is placed on the distribution beam 9, the screw jack 8 is arranged below the distribution beam 9, each layer of steel strand 11 locks the steel strand when the penetration is finished, the steel strand is prevented from falling back during the construction of other structures on the layer, the jack 8 is unloaded before a layer of column or shear wall is installed, and the anchor 10 is removed; the floor fixing device 14 is welded with a steel plate pre-embedded in the floor, is positioned at the joint of each floor and the steel strand 11, and connects each floor structure with the steel strand 11. During construction, the bolt is unscrewed when the steel strand 11 is threaded and screwed when the steel strand 11 is not threaded, so that the temporary fixing effect of the steel strand is achieved; and after the construction is finished, the final fastening plays a permanent fixing role.
The utility model discloses the constitution of power device 6 of threading machine has two kinds of schemes. The power device 6 in the second scheme is composed of three groups of stress plates 15, two jacks 16, an oil pump 17 and a crawler 18, the three groups of stress plates 15 are equidistantly arranged on the crawler 18, the jacks 16 stretch and move alternately to respectively push the three groups of stress plates 15, the stress plates 15 are pressed by the jacks 16 and then are transmitted through the jacks 16 along with the crawler 18, after passing through the jacks 16, springs bounce the stress plates 15 to wait for the jacks to act on thrust again, so that the crawler 18 continuously operates, and the threading driving shaft 2 is driven to continuously rotate.
In a prestressed prefabricated assembly type structure and a penetrating and conveying steel strand combined device, the mounting steps of penetrating and conveying steel strands and fixing are as follows:
(1) pre-burying a corrugated pipe in the prefabricated floor structure of each floor, and pre-burying a steel plate beside the pore channel;
(2) the steel strand is threaded from an inlet at the bottom of the vertical prefabricated part by using a threading machine and a conveying shaft;
(3) when the building is conveyed to the top of the vertical member of the layer, the building is fixed by a temporary fixing device, and then the construction of other structures of the layer is completed;
(4) removing the temporary fixing device, welding the floor fixing device with the embedded steel plate, and temporarily fixing the steel strand with the floor;
(5) continuously installing the upper-layer vertical component, and repeating the operation;
(6) and after all the floors are constructed, screwing the bolts in the floor fixing device, and permanently fixing the steel strand with the floor structure.
The embodiments of the present invention are described in detail with reference to the drawings, but the present invention is not limited to the described embodiments. Various changes, modifications, substitutions and alterations to these embodiments will occur to those skilled in the art and are intended to be within the scope of the present principles and the spirit of the invention.
Claims (6)
1. The utility model provides a prefabricated assembled structure of prestressing force and wear to send steel strand composite set which characterized in that: the device comprises a steel strand, a threading machine, a conveying shaft, a temporary self-locking device and a floor fixing device;
the threading machine comprises a threading driving shaft, a threading driven shaft, a gear, a steering knuckle, a bearing and a power device; the threading driving shaft is connected with the power device and drives the threading driven shaft to rotate through the gear; the steering knuckle is arranged on a threading driven shaft, the driven shaft rotates around the steering knuckle to open and close, a steel strand is placed into the threading opening or the threading machine is moved away when the steel strand is opened, and the steel strand is fed into the threading hole channel by the operation of the threading machine; a shutter for fixing the threading driven shaft is arranged outside a bearing at one end of the threading driven shaft;
the conveying shaft is in chain transmission and is arranged between the threading machine and an inlet at the bottom of the column or the shear wall; the temporary self-locking device comprises a screw jack, a distribution beam and a working anchor, wherein the working anchor is placed on the distribution beam, and the screw jack is arranged below the distribution beam; and the floor fixing device is positioned at the joint of each floor slab and the steel strand and connects each floor slab structure with the steel strand.
2. The pre-stressed prefabricated structure and threading steel strand combination device according to claim 1, wherein: the prestress prefabricated structural steel strand is continuously arranged in full height.
3. The pre-stressed prefabricated structure and threading steel strand combination device according to claim 1, wherein: the size of a threading driving shaft of the threading machine is consistent with that of a gear on a driven shaft.
4. The pre-stressed prefabricated structure and threading steel strand combination device according to claim 1, wherein: the conveying shafts are three pairs, two gears, namely a large gear and a small gear, are arranged on the inner shaft of the conveying shaft close to the threading machine, the diameters of the large gear and the outer shaft gear are the same, the small gear and the other two pairs of inner shaft gears rotate at the same speed through chain transmission, only one gear is arranged on the inner shaft and the outer shaft of the two pairs of conveying shafts far away from the threading machine, and the diameters of the outer shaft gears are larger than the diameters of the inner shaft gears.
5. The pre-stressed prefabricated structure and threading steel strand combination device according to claim 1, wherein: the power device drives a speed reducer by a motor, and the speed reducer is connected with a threading driving shaft.
6. The pre-stressed prefabricated structure and threading steel strand combination device according to claim 1, wherein: the power device comprises three groups of stress plates, two jacks, an oil pump and a track, wherein the three groups of stress plates are arranged on the track at equal intervals, the oil pump is connected with the jacks, and the jacks stretch and alternately act to respectively push the three groups of stress plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920796806.4U CN210483082U (en) | 2019-05-30 | 2019-05-30 | A prestressed prefabricated structure and a combined device for threading and feeding steel strands |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920796806.4U CN210483082U (en) | 2019-05-30 | 2019-05-30 | A prestressed prefabricated structure and a combined device for threading and feeding steel strands |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210483082U true CN210483082U (en) | 2020-05-08 |
Family
ID=70512444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920796806.4U Expired - Fee Related CN210483082U (en) | 2019-05-30 | 2019-05-30 | A prestressed prefabricated structure and a combined device for threading and feeding steel strands |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210483082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107093A (en) * | 2019-05-30 | 2019-08-09 | 南京工业大学 | Prestress prefabricated structure and steel strand penetrating and conveying combined device |
-
2019
- 2019-05-30 CN CN201920796806.4U patent/CN210483082U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107093A (en) * | 2019-05-30 | 2019-08-09 | 南京工业大学 | Prestress prefabricated structure and steel strand penetrating and conveying combined device |
| CN110107093B (en) * | 2019-05-30 | 2023-11-21 | 南京工业大学 | Prestress prefabricated assembly type structure and threading steel strand combined device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10443380B2 (en) | Asymmetric support structure of entry driven along gob-side under unstable roof in deep mines and construction method thereof | |
| CN2412028Y (en) | Bridge dragline structure | |
| CN103104041B (en) | A kind of adopt cross bolts to connect assembled steel reinforced concrete frame bean column node and construction method | |
| US7814724B2 (en) | Method for building over an opening via incremental launching | |
| CN110130234B (en) | Novel bridge reinforcing system and construction method thereof | |
| CN103835422A (en) | Method for fire-proofing composite slab using wire rope | |
| CN107964948A (en) | A kind of super-large diameter pin-connected panel hollow pile and its joining method | |
| CN107893665A (en) | A kind of prefabricated assembled composite supporting construction mounting process based on shaped steel | |
| CN210483082U (en) | A prestressed prefabricated structure and a combined device for threading and feeding steel strands | |
| CN110468727B (en) | Temporary prestress tensioning pedestal and lifting point integrated structure of segmental beam and construction method | |
| CN110565546B (en) | Detachable device for assembling prestress for bridge structure and reinforcing method | |
| CN110524675B (en) | Pre-tensioning prefabricated I-beam and construction method thereof | |
| CN111305227B (en) | Prestressed string-ring support system and its deformation control method | |
| CN110761462B (en) | A prefabricated floor slab connection system and construction method thereof | |
| CN107740583B (en) | Beam bottom bar planting and feeding device and using method thereof | |
| CN107165060B (en) | Bridge prestressing force high strength wire rope bending resistance reinforcing apparatus | |
| CN115370175A (en) | Assembled frame structure elevator hoistway and installation method thereof | |
| CN108894218B (en) | Prestressed concrete precast pile | |
| CN110107093B (en) | Prestress prefabricated assembly type structure and threading steel strand combined device | |
| CN203113524U (en) | Assembled type framework beam column node using horizontal connection | |
| CN106436587A (en) | Chain link type automatic synchronous tensioning system and method for prestressed wire ropes | |
| CN211006393U (en) | Detachable device for assembling prestress for bridge structure | |
| CN215760796U (en) | Supporting structure of assembled prestressed concrete silo component | |
| CN108408635A (en) | A kind of combined bay that lifting jack detachable load is combined with guiding | |
| CN115490113A (en) | Adjustable lifting ring beam of elevator hoistway and installation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200508 Termination date: 20210530 |