CN211492173U - Device for manufacturing prestressed steel bone concrete beam - Google Patents
Device for manufacturing prestressed steel bone concrete beam Download PDFInfo
- Publication number
- CN211492173U CN211492173U CN201922283603.8U CN201922283603U CN211492173U CN 211492173 U CN211492173 U CN 211492173U CN 201922283603 U CN201922283603 U CN 201922283603U CN 211492173 U CN211492173 U CN 211492173U
- Authority
- CN
- China
- Prior art keywords
- strip
- shaped
- steel
- force application
- supporting
- 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
Landscapes
- Rod-Shaped Construction Members (AREA)
Abstract
The utility model discloses a device of preparation prestressed steel bone concrete roof beam, the device includes: a strip-shaped manufacturing platform frame, wherein a strip-shaped template box is placed on the strip-shaped manufacturing platform frame, and a strip-shaped steel rib beam is arranged in the strip-shaped manufacturing platform frame; the two end part upward stress application mechanisms are symmetrically arranged on the strip-shaped manufacturing platform frame at intervals, and the bottom ends of the two end part upward stress application mechanisms are fixedly connected with the upper surfaces of the two end parts of the strip-shaped steel skeleton beam respectively; the middle downward stress application mechanism is arranged below the strip-shaped manufacturing platform frame, and the top end of the middle downward stress application mechanism is fixedly connected with the lower surface close to the middle position of the strip-shaped steel skeleton beam; and reinforcing steel bars and stirrups are placed in the strip-shaped template box. The bending stress is generated by applying the preset load on the steel skeleton beam, after the cast concrete reaches the strength required by the design, the prestress is introduced into the concrete around the steel skeleton beam by removing the load on the steel skeleton beam in the process of releasing the bending stress from the steel skeleton, so that the crack resistance of the concrete is improved.
Description
Technical Field
The utility model relates to a civil construction technical field, more specifically the device that relates to a preparation prestressed steel bone concrete beam that says so.
Background
The steel reinforced concrete beam is a structure that steel bars are arranged around the steel reinforced beam and concrete is poured, and the steel reinforced concrete beam can fully exert the characteristics of two materials of steel and concrete. The method has the following specific advantages: compared with a steel structure, the outer concrete of the steel reinforced concrete structural member can prevent the local curved surface of the steel member, improve the overall rigidity of the steel member, remarkably improve the plane torsional buckling performance of the steel member, fully exert the strength of steel, protect the steel by the concrete, and effectively prevent fire and prevent corrosion. The steel reinforced concrete has profile steel in its cross section, and this can raise the bearing capacity and rigidity of the member greatly, reduce the size of the cross section of the member greatly and increase the effective use area of the house. Therefore, the steel reinforced concrete beam has the advantages of better seismic performance, steel saving, concrete utilization coefficient improvement, convenient construction and the like, and is widely applied to engineering construction.
The concrete in the steel reinforced concrete beam is a brittle material and has higher compressive strength, and the tensile strength is only 1/10-1/20 of the compressive strength, so that the concrete structure is often cracked due to the tension of the concrete, the structure is attractive, the steel bars and the steel reinforced beams are easy to expose at the cracks, the steel bars and the steel reinforced beams are easy to corrode, and the service life of the steel reinforced concrete beam is shortened.
Therefore, the technical problem to be solved by the present invention is how to provide a device for manufacturing prestressed reinforced concrete beam to apply pre-stress to concrete, improve the crack resistance of concrete, and prolong the service life of reinforced concrete beam.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a device of preparation prestressing force steel bone concrete beam to exert prestressing force to the concrete, improve the anti cracking performance of concrete, prolong the life of reinforcing bar concrete beam.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a device of preparation prestressed steel bone concrete roof beam, include:
the strip-shaped manufacturing platform frame is provided with a strip-shaped template box with an opening at the top along the length direction, a strip-shaped steel rib beam is arranged in the strip-shaped template box, and a plurality of studs are welded and fixed on the upper surface and the lower surface of the strip-shaped steel rib beam;
the two end upward force applying mechanisms are symmetrically arranged at positions close to two sides of the strip-shaped manufacturing platform frame at intervals, and the bottom ends of the two end upward force applying mechanisms extend into the strip-shaped template box through the opening side of the strip-shaped template box and are fixedly connected with the upper surfaces close to two ends of the strip-shaped steel reinforced beam;
the middle downward force applying mechanism is arranged at a position close to the middle part of the strip-shaped manufacturing platform frame, and the top end of the middle downward force applying mechanism penetrates through the bottom of the strip-shaped template box and extends to the inside of the strip-shaped template box and is fixedly connected with the lower surface close to the middle part of the strip-shaped steel skeleton beam;
the long-strip-shaped formwork box is filled with concrete used for wrapping the long-strip-shaped steel reinforced beam, and steel bars and stirrups embedded in the concrete.
According to the above technical scheme, compare with prior art, the utility model discloses a make prestressed steel bone concrete beam's device, stride the well position through middle part downward stress applying mechanism to rectangular shape reinforcing bar roof beam and fix, then upwards pulling force is applyed to the both ends of rectangular shape reinforcing bar roof beam respectively through the upward stress applying mechanism in both ends, make rectangular shape reinforcing bar roof beam produce bending deformation downwards, the upper surface of reinforcing bar roof beam receives compressive stress promptly, the lower surface of reinforcing bar roof beam is tensile stress, then pour the concrete, after the concrete strength reaches the predetermined value, release external force, when rectangular shape reinforcing bar roof beam resumes initial state, make the prestressing force that the concrete of rectangular shape reinforcing bar roof beam lower surface received be pre-compaction stress, to this point, can improve the anti-cracking performance of concrete, prolong reinforcing bar concrete beam's life.
Further, rectangular shape preparation platform frame includes:
the lower surface of the strip-shaped supporting platform is provided with a plurality of supporting legs, and the strip-shaped template box is arranged on the upper surface of the strip-shaped supporting platform along the length direction of the strip-shaped supporting platform;
the two upper support frames are respectively and fixedly arranged at positions close to the upper surfaces of the two sides of the strip-shaped supporting platform, and the two end upward stress mechanisms are respectively arranged on the two upper support frames;
the lower supporting frame is fixedly arranged at a position close to the lower surface of the middle part of the strip-shaped supporting platform, and the middle part downward force applying mechanism is arranged on the lower supporting frame.
Further, two of the upper support frames each include:
the two vertical supporting beams are arranged in parallel at intervals, and one ends of the two vertical supporting beams are respectively and fixedly arranged on the upper surface close to the side end of the strip-shaped supporting platform;
the two ends of the lower surface of the first transverse supporting beam are fixedly connected with the other end of the vertical supporting beam respectively, and the end part upward force applying mechanism is arranged on the first transverse supporting beam.
Further, the end portion upward urging mechanism includes:
the upward stress application screw rod is vertically arranged, one end of the upward stress application screw rod penetrates through the upper surface and the lower surface of the first transverse supporting beam, extends into the elongated template box through the open side of the elongated template box and is fixedly connected with the upper surface close to the end part of the elongated steel rib beam, and the other end of the upward stress application screw rod extends towards the upper part of the first transverse supporting beam;
and the upward force application nut is screwed on the upward force application screw rod and is positioned above the first transverse supporting beam.
The technical scheme has the advantages that the upward stressing screw rod upwards pulls the strip-shaped steel skeleton beam to generate downward bending deformation by rotating the upward stressing nut, and the structure is simple and easy to operate.
Furthermore, a first connecting nut is fixedly welded on the upper surface close to the end part of the strip-shaped steel skeleton beam and in a position corresponding to one end of the upward stressing screw rod, and one end of the upward stressing screw rod is fixedly connected with the first connecting nut in a threaded manner.
The beneficial effect that adopts above-mentioned technical scheme to produce is, easily make progress the connection and the dismantlement of afterburning screw rod and rectangular shape reinforcing bar roof beam.
Furthermore, a tension and pressure sensor for detecting the applied load of the upward force application screw rod is sleeved on the upward force application screw rod, and the tension and pressure sensor is arranged between the first transverse supporting beam and the upward force application nut.
The beneficial effect that adopts above-mentioned technical scheme to produce is, whether the accessible draws pressure sensor to judge the load of applying and has reached the predetermined value, guarantees the accuracy of applying the load.
Further, the lower support frame includes:
the two long strip-shaped longitudinal beams are arranged at intervals along the length direction of the long strip-shaped supporting platform, and the upper surfaces of the two long strip-shaped longitudinal beams are fixedly arranged on the lower surface of the long strip-shaped supporting platform;
the two second transverse supporting beams are arranged at intervals, the upper surfaces of the two second transverse supporting beams are fixedly connected with the lower surfaces of the strip-shaped longitudinal beams, the middle downward force applying mechanisms are two, and the two middle downward force applying mechanisms are respectively arranged on the two second transverse supporting beams.
Further, both of the two middle downward urging mechanisms include:
the downward force application screw rod is vertically arranged, one end of the downward force application screw rod penetrates through the upper surface and the lower surface of the second transverse supporting beam, extends into the elongated template box through the bottom of the elongated template box and is fixedly connected with the lower surface close to the middle of the elongated steel rib beam, and the other end of the downward force application screw rod extends below the second transverse supporting beam;
and the downward force application nut is in threaded connection with the downward force application screw rod and is positioned below the second transverse supporting beam.
The beneficial effects that adopt above-mentioned technical scheme to produce are that, through rotatory thrust augmentation nut downwards for the downward thrust augmentation screw rod can be firm fix rectangular shape reinforcing bar roof beam middle part, with the cooperation thrust augmentation screw rod that makes progress, make rectangular shape reinforcing bar roof beam produce decurrent bending deformation, in order to exert prestressing force to the concrete, improve the crack resistance of concrete, the life of extension reinforcing bar concrete beam.
Furthermore, a second connecting nut is fixedly welded at a position, corresponding to one end of the downward force application screw, on the lower surface close to the middle of the elongated steel skeleton beam, and one end of the downward force application screw is fixedly connected with the second connecting nut in a threaded manner.
The beneficial effect that adopts above-mentioned technical scheme to produce is, easily to the connection and the dismantlement of afterburning screw rod and rectangular shape reinforcing bar roof beam downwards.
By the device, external force can be applied to the strip-shaped steel reinforced beam to enable the strip-shaped steel reinforced beam to generate bending internal force, then concrete is poured, the external force of the steel reinforced beam is released after the concrete reaches the strength, the steel reinforced beam elastically deforms and tries to recover to apply pre-stress to the concrete on the lower surface of the steel reinforced beam, and therefore the pre-stress steel reinforced concrete beam is formed, and the pre-stress steel reinforced concrete beam manufactured by the method has good crack resistance and long service life. And the method is simple and easy to implement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an apparatus for manufacturing prestressed reinforced concrete beams according to the present invention.
FIG. 2 is a schematic diagram of a side view of a force applying mechanism with an upward end mounted on a strip-shaped manufacturing platform.
FIG. 3 is a schematic diagram of a side view of a bar-shaped manufacturing platform with a force applying mechanism mounted on the platform.
Fig. 4 is a schematic structural diagram of pouring concrete into the formwork box and arranging reinforcing steel bars and stirrups.
Fig. 5 is a schematic structural diagram of a precast prestressed reinforced concrete beam.
Wherein: 1-strip-shaped manufacturing platform frame, 11-strip-shaped supporting platform, 12-supporting legs, 13-upper supporting frame, 131-vertical supporting beam, 132-first transverse supporting beam, 14-lower supporting frame, 141-strip-shaped longitudinal beam, 14-second transverse supporting beam, 2-strip-shaped template box, 3-strip-shaped steel skeleton beam, 4-end upward force application mechanism, 41-upward force application screw rod, 42-upward force application nut, 43-first connecting nut, 5-middle downward force application mechanism, 51-downward force application screw rod, 52-downward force application nut, 53-second connecting nut, 6-concrete, 7-steel bar, 8-stirrup and 9-tension pressure sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model discloses device of preparation prestressing force steel bone concrete beam, include:
the long strip-shaped manufacturing platform frame 1 is characterized in that a long strip-shaped template box 2 with an opening at the top is placed on the long strip-shaped manufacturing platform frame 1 along the length direction of the long strip-shaped manufacturing platform frame, a long strip-shaped steel rib beam 3 is arranged in the long strip-shaped template box 2, and a plurality of studs are welded and fixed on the upper surface and the lower surface of the long strip-shaped steel rib beam 3 so as to effectively bond and anchor the steel rib beam and concrete;
the two end upward force applying mechanisms 4 are symmetrically arranged at positions close to two sides of the strip-shaped manufacturing platform frame 1 at intervals, and the bottom ends of the two end upward force applying mechanisms 4 extend into the strip-shaped template box 2 through the opening side of the strip-shaped template box 2 and are fixedly connected with the upper surfaces of the two end positions close to the strip-shaped steel reinforced beam 3;
the middle downward force applying mechanism 5 is arranged at a position close to the middle part of the strip-shaped manufacturing platform frame 1, and the top end of the middle downward force applying mechanism 5 penetrates through the bottom of the strip-shaped template box 2 and extends into the strip-shaped template box 2 and is fixedly connected with the lower surface close to the middle part of the strip-shaped steel reinforced beam 3;
wherein, elongated template case 2 intussuseption is filled with the concrete 6 that is used for the rectangular shape reinforcing bar roof beam 3 of parcel to and bury reinforcing bar 7 and the stirrup 8 in concrete 6 underground, and reinforcing bar 7 sets up on the upper and lower surface side of reinforcing bar, and stirrup 8 encloses and establishes in the reinforcing bar roof beam outside.
Rectangular shape preparation platform frame 1 includes:
the support structure comprises a strip-shaped support platform 11, wherein a plurality of support legs 12 are arranged on the lower surface of the strip-shaped support platform 11, and a strip-shaped template box 2 is arranged on the upper surface of the strip-shaped support platform 11 along the length direction of the strip-shaped support platform 11;
two upper support frames 13, wherein the two upper support frames 13 are respectively fixedly arranged at the positions close to the upper surfaces of the two sides of the strip-shaped supporting platform 11, and the two end upward stress application mechanisms 4 are respectively arranged on the two upper support frames 13;
the lower supporting frame 14, the lower supporting frame 14 is fixedly installed on the position close to the lower surface of the middle part of the strip-shaped supporting platform 11, and the middle part downward force applying mechanism 5 is installed on the lower supporting frame 14.
Some embodiments of the utility model, two upper support frames 13 all include:
two vertical supporting beams 131 are arranged, the two vertical supporting beams 131 are arranged at intervals and in parallel, and one ends of the two vertical supporting beams 131 are respectively and fixedly installed on the upper surface close to the side end of the elongated supporting platform 11;
and two ends of the lower surface of the first transverse support beam 132 are respectively fixedly connected with the other ends of the two vertical support beams 131, and the end upward force application mechanism 4 is installed on the first transverse support beam 132.
Some embodiments of the utility model, tip reinforcing means 4 upwards includes:
the upward force application screw rod 41 is vertically arranged, one end of the upward force application screw rod 41 penetrates through the upper surface and the lower surface of the first transverse supporting beam 132, extends into the elongated template box 2 through the opening side of the elongated template box 2 and is fixedly connected with the upper surface close to the end part of the elongated steel rib beam 3, and the other end of the upward force application screw rod 41 extends to the upper part of the first transverse supporting beam 132;
and an upward force nut 42, the upward force nut 42 being threaded onto the upward force screw 41 above the first cross support beam 132.
Specifically, a first connecting nut 43 is welded and fixed at a position corresponding to one end of the upward force application screw 41 on the upper surface of the end portion of the elongated steel skeleton beam 3, and one end of the upward force application screw 41 is screwed and fixed with the first connecting nut 43.
Some embodiments of the utility model, upwards add the cover and be equipped with the pressure sensor 9 that draws that is used for detecting its applied load on the thrust augmentation screw rod 41, draw pressure sensor 9 and arrange first transverse supporting beam 132 and upwards add between the thrust augmentation nut 42 in. And a backing plate (not shown) is provided between the pull pressure sensor and the upward force application nut in order to prevent the pull pressure sensor from being damaged due to friction generated against the pull pressure sensor when the upward force application nut is screwed.
Some embodiments of the present invention, the lower support frame 14 includes:
the number of the elongated longitudinal beams 141 is two, the two elongated longitudinal beams 141 are arranged at intervals along the length direction of the elongated supporting platform 11, and the upper surfaces of the two elongated longitudinal beams 141 are both fixedly installed on the lower surface of the elongated supporting platform 11;
the two second transverse supporting beams 142 are arranged at intervals, the upper surfaces of the two second transverse supporting beams 142 are fixedly connected with the lower surfaces of the two strip-shaped longitudinal beams 141, the two middle downward force applying mechanisms 5 are arranged, and the two middle downward force applying mechanisms 5 are respectively arranged on the two second transverse supporting beams 142.
The utility model discloses a some embodiments, two middle parts are forcing mechanism 5 downwards all include:
the downward force application screw 51 is vertically arranged, one end of the downward force application screw 51 penetrates through the upper surface and the lower surface of the second transverse supporting beam 142, extends into the elongated template box 2 through the box bottom of the elongated template box 2 and is fixedly connected with the lower surface close to the middle position of the elongated steel reinforced beam 3, and the other end of the downward force application screw extends below the second transverse supporting beam 142;
a force down nut 52, the force down nut 52 threaded onto the force down screw 51 and positioned below the second cross support beam 142.
Wherein a shim plate (not shown) is provided between the down-forcing nut and the second transverse support beam.
Specifically, a second connecting nut 53 is fixedly welded at a position corresponding to one end of the downward force application screw 51 on the lower surface of the middle position of the elongated steel skeleton beam 3, and one end of the downward force application screw 51 is fixedly connected with the second connecting nut 53 in a threaded manner.
Wherein, the long-strip steel reinforced beam can be an I-shaped steel beam, a rectangular steel beam, a T-shaped steel beam or the like.
The utility model discloses the step of preparation prestressed steel bone concrete roof beam is as follows:
step 1, preparing a strip-shaped manufacturing platform frame: respectively installing an upper support frame and a lower support frame on corresponding positions of a strip-shaped support platform according to a preset size;
step 5, applying external force: applying upward tension to the strip-shaped steel skeleton beam through an upward stress application nut and an upward stress application screw according to a preset tension value (20-100KN), and observing whether the applied tension value reaches a preset value or not through a tension pressure sensor;
And 8, dismantling the upward stress application screw, the downward stress application screw and the strip-shaped template box to obtain the prestressed steel bone concrete beam.
It should be noted that, in order to easily remove the upward-acting screw and the downward-acting screw, a protective pipe may be previously installed outside the screw, and then concrete may be poured.
By the device, when a preset load is applied to the steel reinforced beam to generate bending pressure, after concrete is poured, the load on the steel reinforced beam is removed, and the pre-stress is introduced into concrete on the lower surface of the steel reinforced beam in the process of releasing the bending pressure by the steel reinforced beam, so that the crack resistance of the concrete is improved, and the service life of the steel reinforced beam concrete beam is prolonged.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. An apparatus for manufacturing a prestressed reinforced concrete girder, comprising:
the production platform comprises a strip-shaped production platform frame (1), wherein a strip-shaped template box (2) with an opening at the top is placed on the strip-shaped production platform frame (1) along the length direction of the strip-shaped production platform frame, a strip-shaped steel rib beam (3) is arranged in the strip-shaped template box (2), and a plurality of studs are welded and fixed on the upper surface and the lower surface of the strip-shaped steel rib beam (3);
the two end upward force applying mechanisms (4) are symmetrically arranged at positions close to two sides of the strip-shaped manufacturing platform frame (1) at intervals, and the bottom ends of the two end upward force applying mechanisms (4) respectively extend into the strip-shaped template box (2) through the open side of the strip-shaped template box (2) and are fixedly connected with the upper surfaces close to two ends of the strip-shaped steel rib beam (3);
the middle downward stress application mechanism (5) is arranged at a position close to the middle part of the strip-shaped manufacturing platform frame (1), and the top end of the middle downward stress application mechanism (5) penetrates through the bottom of the strip-shaped template box (2) and extends to the inside of the steel strip-shaped template box (2) and is fixedly connected with the lower surface close to the middle part of the strip-shaped beam (3);
the long-strip-shaped formwork box (2) is filled with concrete (6) used for wrapping the long-strip-shaped steel skeleton beam (3), and steel bars (7) and stirrups (8) embedded in the concrete (6).
2. An apparatus for fabricating a prestressed reinforced concrete beam according to claim 1, wherein said elongated fabrication platform frame (1) comprises:
the support structure comprises a strip-shaped support platform (11), wherein a plurality of support legs (12) are arranged on the lower surface of the strip-shaped support platform (11), and the strip-shaped template box (2) is arranged on the upper surface of the strip-shaped support platform (11) along the length direction of the strip-shaped support platform (11);
the two upper supporting frames (13) are respectively fixedly arranged on the positions close to the upper surfaces of the two sides of the strip-shaped supporting platform (11), and the two end upward stress applying mechanisms (4) are respectively arranged on the two upper supporting frames (13);
the lower supporting frame (14), the lower supporting frame (14) is fixedly arranged at a position close to the lower surface of the middle part of the strip-shaped supporting platform (11), and the middle part downward force application mechanism (5) is arranged on the lower supporting frame (14).
3. An apparatus for fabricating a prestressed reinforced concrete beam according to claim 2, wherein both of the upper support frames (13) comprise:
the number of the vertical supporting beams (131) is two, the two vertical supporting beams (131) are arranged in parallel at intervals, and one end of each of the two vertical supporting beams (131) is fixedly arranged on the upper surface close to the side end of the elongated supporting platform (11);
two ends of the lower surface of the first transverse supporting beam (132) are respectively fixedly connected with the other ends of the two vertical supporting beams (131), and the end part upward force application mechanism (4) is installed on the first transverse supporting beam (132).
4. An apparatus for constructing a prestressed reinforced concrete beam according to claim 3, wherein the end portion upward forcing means (4) comprises:
the upward force application screw (41) is vertically arranged, one end of the upward force application screw (41) penetrates through the upper surface and the lower surface of the first transverse supporting beam (132), extends into the elongated template box (2) through the opening side of the elongated template box (2) and is fixedly connected with the upper surface close to the end part of the elongated steel skeleton beam (3), and the other end of the upward force application screw extends towards the upper part of the first transverse supporting beam (132);
an upward force nut (42), said upward force nut (42) threaded on said upward force screw (41) and above said first transverse support beam (132).
5. The apparatus for manufacturing a prestressed reinforced concrete beam according to claim 4, wherein a first coupling nut (43) is fixedly welded to a position of an upper surface of a position adjacent to the end of the elongated steel reinforced beam (3) corresponding to one end of the upward force application screw (41), and one end of the upward force application screw (41) is fixedly screwed to the first coupling nut (43).
6. An apparatus for manufacturing prestressed reinforced concrete beam according to claim 4, wherein said upward force application screw (41) is sleeved with a tension and pressure sensor (9) for detecting the load applied thereto, said tension and pressure sensor (9) being interposed between said first lateral support beam (132) and said upward force application nut (42).
7. An apparatus for fabricating a prestressed reinforced concrete beam according to any one of claims 2 to 6, wherein the lower support frame (14) comprises:
the number of the strip-shaped longitudinal beams (141) is two, the two strip-shaped longitudinal beams (141) are arranged at intervals along the length direction of the strip-shaped supporting platform (11), and the upper surfaces of the two strip-shaped longitudinal beams (141) are fixedly arranged on the lower surface of the strip-shaped supporting platform (11);
the two second transverse supporting beams (142) are arranged, the two second transverse supporting beams (142) are arranged at intervals, the upper surfaces of the second transverse supporting beams are fixedly connected with the lower surfaces of the strip-shaped longitudinal beams (141), the two middle downward force applying mechanisms (5) are arranged, and the two middle downward force applying mechanisms (5) are respectively arranged on the two second transverse supporting beams (142).
8. An apparatus for constructing a prestressed reinforced concrete beam according to claim 7, wherein both of said middle portion downward forcing means (5) comprise:
the downward force application screw (51) is vertically arranged, one end of the downward force application screw (51) penetrates through the upper surface and the lower surface of the second transverse supporting beam (142), extends into the elongated template box (2) through the bottom of the elongated template box (2) and is fixedly connected with the lower surface close to the middle of the elongated steel skeleton beam (3), and the other end of the downward force application screw extends below the second transverse supporting beam (142);
a force down nut (52), said force down nut (52) threaded on said force down screw (51) and located below said second cross support beam (142).
9. The apparatus for manufacturing a prestressed reinforced concrete beam according to claim 8, wherein a second coupling nut (53) is fixedly welded to a lower surface of the elongated steel reinforced beam (3) at a position corresponding to one end of the downward force application screw (51), and one end of the downward force application screw (51) is fixedly screwed to the second coupling nut (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922283603.8U CN211492173U (en) | 2019-12-18 | 2019-12-18 | Device for manufacturing prestressed steel bone concrete beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922283603.8U CN211492173U (en) | 2019-12-18 | 2019-12-18 | Device for manufacturing prestressed steel bone concrete beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211492173U true CN211492173U (en) | 2020-09-15 |
Family
ID=72416981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922283603.8U Active CN211492173U (en) | 2019-12-18 | 2019-12-18 | Device for manufacturing prestressed steel bone concrete beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211492173U (en) |
-
2019
- 2019-12-18 CN CN201922283603.8U patent/CN211492173U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5373979B2 (en) | Construction Method of Steel Composite Girder Bridge {ConstructionMethod SteelCompositeGirderBridge} | |
| CN110847044B (en) | Semi-prefabricated assembled bent cap construction method | |
| CN105835226B (en) | A kind of pre-tensioning system precast beam pedestal | |
| KR101170922B1 (en) | The rahmen bridge construction technique for which tendon and the connection support stand was used | |
| KR20110111907A (en) | Saddle assembly | |
| CN102296735A (en) | Anti-floating structure and method for cast-in-situ concrete GBF (glass basalt fiber) hollow floor slab | |
| CN219034078U (en) | Protective structure for slow-bonding prestressed reinforcement sheath rib groove | |
| CN104831639A (en) | Consolidation and release construction method for 0# blocks of ultra-wide non-uniform continuous beam | |
| KR101308792B1 (en) | Various Section Box Girder And Manufacturing Method thereof, And Bridge Construction Method Using The Same | |
| CN207812307U (en) | The construction system of Cable stayed Bridge Main Tower and steel anchor beam | |
| KR101200563B1 (en) | A Steel Composite Bridge Having Steel Plates Connected by Using Concrete Cross Beams and Its Constructing Method | |
| CN105155868A (en) | Method for pulling pillar through prestress using non-binding steel strands | |
| CN105088961B (en) | The construction method that a kind of end bay closure segment is merged with Cast-in-Situ Segment | |
| CN108316150A (en) | The construction system and construction method of Cable stayed Bridge Main Tower and steel anchor beam | |
| CN211492173U (en) | Device for manufacturing prestressed steel bone concrete beam | |
| CN111015938A (en) | Device and method for manufacturing prestressed steel bone concrete beam | |
| KR101358878B1 (en) | Reinforcement member and girder using the same | |
| CN108824191B (en) | Construction process of group nail connecting device with corrugated sleeve | |
| CN116201392A (en) | Construction method for pre-stressing of large-span structure underpinning pre-stressing conversion beam | |
| KR100546719B1 (en) | Prestressed steel composite girder | |
| KR100982668B1 (en) | Method for manufacturing prestressed concrete girder | |
| CN210712562U (en) | Tower crane system for construction of cast-in-situ tower column of cable-stayed bridge | |
| CN105863073A (en) | Combined column and foundation node structure with horizontal seismic performance and construction method thereof | |
| KR101325230B1 (en) | Manufacturing method for turn-over composite girder | |
| KR200369732Y1 (en) | Beam with circular steel pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201214 Address after: 100088 Beijing city Haidian District Xitucheng Road No. 33 Patentee after: CENTRAL RESEARCH INSTITUTE OF BUILDING AND CONSTRUCTION CO., LTD. MCC Group Patentee after: CHINA JINGYE ENGINEERING Corp.,Ltd. Patentee after: China Metallurgical Industry Co., Ltd Address before: 100088 Beijing city Haidian District Xitucheng Road No. 33 Patentee before: CENTRAL RESEARCH INSTITUTE OF BUILDING AND CONSTRUCTION CO., LTD. MCC Group Patentee before: CHINA JINGYE ENGINEERING Corp.,Ltd. |