CN112878672A - External prestress loading device of positioning beam template system - Google Patents
External prestress loading device of positioning beam template system Download PDFInfo
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- CN112878672A CN112878672A CN202110168964.7A CN202110168964A CN112878672A CN 112878672 A CN112878672 A CN 112878672A CN 202110168964 A CN202110168964 A CN 202110168964A CN 112878672 A CN112878672 A CN 112878672A
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- prestress
- connecting device
- loading
- beam template
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/04—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for lintels, beams, or transoms to be encased separately; Special tying or clamping means therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention provides an external prestress loading device of a positioning beam template system, which comprises: prestress connecting device and prestress adjusting device. The device is characterized in that the bottoms of two ends of a beam template (a beam template supports a steel beam) are connected by utilizing a prestress connecting device, the distance between the prestress connecting device and the bottom of the beam template is adjusted by a prestress adjusting device, and the external prestress loading of the bearing type beam template device is realized by the design of an external prestress loading device. The invention can improve the bearing capacity of the bearing type beam template device, increase the span of the bearing type beam template device, reduce the support of the bearing type beam template system and further simplify the work under the same cross section level.
Description
Technical Field
The invention relates to the field of building engineering construction, in particular to an external prestress loading device of a positioning beam template system.
Background
Currently, a cast-in-place reinforced concrete structure is a structural form widely applied in the field of buildings. The reinforced concrete structure can be divided into four projects, namely a reinforced concrete project, a template project and a supporting project, and the four projects are jointly made to complete the forming, positioning, connecting and stressing of the reinforced concrete member.
In the prior cast-in-place reinforced concrete engineering, template engineering and supporting engineering mainly adopt turnover templates and rod type supports, the turnover templates need to be turned over along with the pouring of reinforced concrete on site, the manual workload on site is large, the process is complex, the rod type supports are mainly supported by rod type scaffolds, the installation and the removal are difficult, the turnover is not generally carried out, and the construction conditions are greatly limited.
The bearing type beam formwork system is a metal beam formwork device suitable for a cast-in-place reinforced concrete structure, and comprises independent beam corner formworks, beam bottom formworks, beam side formworks and beam prestress supporting devices. The bearing type modular metal beam template device can quickly and accurately position the beam template device through combined positioning between the templates, and can directly carry out concrete pouring after the beam template device is assembled by combining the prestress loading device.
The prestress loading device is used for improving the bearing capacity of the bearing type beam template, compressive stress is constructed on the bearing type beam template in advance before construction, and the compressive stress pre-applied in the construction process can completely offset tensile stress caused by load so as to improve the bearing capacity of the bearing type beam template in the concrete pouring process.
The bearing type beam template can be repeatedly assembled and disassembled in the pouring of the reinforced concrete structure, and the position of the bearing type beam template can be continuously changed according to engineering requirements. The current external prestressing technology has the defect of poor turnover capacity, so that the prestressing technology is less applied to template engineering.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the external prestress loading device of the positioning beam template system, which can be suitable for the external prestress loading device of the metal beam through the independent adjustable steel supporting device, the independent prestress loading device and the prestress anchoring device, can be detached at any time, and can adjust the prestress loading size according to the requirement so as to meet the use of turnover type supporting or temporary building reinforcement in the construction process. The invention specifically adopts the following technical scheme.
In order to achieve the above object, an external prestress loading device of a positioning beam template system is provided, which comprises: the two ends of the prestress connecting device are respectively connected to the bottoms of the two ends of the beam template; and the prestress adjusting device is arranged on the prestress connecting device and is used for adjusting the distance between the prestress connecting device and the bottom of the beam template.
Optionally, the external prestress loading device of the positioning beam template system includes a first section connecting device, a second section connecting device, and a connection adjusting device, and one end of the first section connecting device and one end of the second section connecting device are respectively connected to the connection adjusting device.
Optionally, the external prestress loading device of the positioning beam template system is configured such that the other end of the first section of connecting device and the other end of the second section of connecting device are connected to two ends of the beam template respectively.
Optionally, the external prestress loading device of the positioning beam template system may be configured to shorten or lengthen a distance between one end of the first section of the connecting device and one end of the second section of the connecting device.
Optionally, the external prestress loading device of the positioning beam template system is configured such that the connection adjusting device is connected to one end of the first section of connecting device and one end of the second section of connecting device in a threaded manner.
Optionally, the external prestress loading device of the positioning beam template system is configured to be connected to the external prestress loading device.
Optionally, the external prestressed loading device of the positioning beam template system further includes prestressed anchoring devices respectively disposed at two end portions of the prestressed connecting device, and respectively fixed at the top of the adjustable steel support device disposed below the loading device 2.
Optionally, the external prestress loading device of the positioning beam template system, wherein the prestress adjusting device includes a mounting seat mounted on the prestress connecting device and a loading rod mounted on the mounting seat in a threaded connection manner, and a top end of the loading rod abuts against a bottom of the beam template.
Advantageous effects
The invention utilizes the prestress connecting device to connect the bottoms of the two ends of the beam template, the prestress adjusting device adjusts the distance between the prestress connecting device and the bottom of the beam template, and the external prestress loading of the bearing type beam template device is realized through the design of the external prestress loading device. The invention can improve the bearing capacity of the bearing type beam template device, increase the span of the bearing type beam template device, reduce the support of the bearing type beam template system and further simplify the work under the same cross section level.
Further, the invention utilizes the middle prestress connecting devices respectively connected to the bottoms of the two ends of the beam template to install the prestress adjusting device. Therefore, the prestress adjusting device can be detached at any time, the prestress loading size can be adjusted according to requirements, and the use of turnover type support or temporary building reinforcement in the construction process can be met. The steel bar reinforced concrete structure can be assembled and disassembled repeatedly in the pouring process of the steel bar reinforced concrete structure, and the position of the steel bar reinforced concrete structure can be changed according to engineering requirements.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the overall construction of the positioning beam template system of the present invention;
FIG. 2 is a schematic structural diagram of a prestressing force loading device in the positioning beam template system of the present invention;
fig. 3 is a schematic structural diagram of an external prestress loading device used in the present invention.
In the drawings, 1 denotes a beam formwork device; 2 denotes a loading device; 3 denotes an adjustable steel support; 21 denotes a prestress adjusting device; 22 denotes a prestressed attachment; 23 denotes a connection adjusting device; and 25 denotes a first stage connecting means.
Detailed Description
In order to make the purpose and technical solution of the embodiments of the present invention clearer, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The term "connected" as used herein may mean either a direct connection between the components or an indirect connection between the components via other components.
The meaning of "up and down" in the present invention means that the beam template device pointed by the loading device is up when the user is facing the positioning beam template system, and vice versa is down, not the specific limitation of the device mechanism of the present invention.
The external prestress loading device of the positioning beam template system is suitable for a bearing type beam template device 1 similar to that shown in figure 1, is used for improving the span of the bearing type beam template device 1, reducing the workload of field supporting engineering, miniaturizing the external prestress loading device and improving the turnover performance of the external prestress loading device. Referring to fig. 2, it includes:
a prestress connecting device 22, both ends of which are connected to the bottoms of both ends of the beam formwork, respectively;
and a prestress adjusting device 21 installed on the prestress connecting device 22 and adjusting a distance between the prestress connecting device 22 and the bottom of the beam formwork.
The prestress adjusting device 21 comprises a mounting seat mounted on the prestress connecting device 22 and a loading rod mounted on the mounting seat in a threaded connection mode, and the top end of the loading rod abuts against the bottom of the beam formwork, so that the prestress adjusting device can quickly and simply apply prestress to the bearing type beam formwork device 1, the magnitude of the applied prestress can be adjusted according to the specific requirements of a project, and the prestress adjusting device can be detached at any time when no prestress is needed.
In order to realize the positioning and external prestress loading of the load-bearing beam template device 1, in one implementation, the present invention may adopt the mode shown in fig. 2:
the adjustable steel supporting device 3 is arranged at the bottom of the bearing type beam template device 1, and the height of the beam template device 1 can be adjusted by the adjustable steel supporting device 3 according to different project requirements;
an independent prestressed anchoring end can be arranged at the top of the adjustable steel supporting device 3, and the member is independently arranged and connected with the bearing type beam template device 1 and the adjustable steel supporting device 3 through bolts.
In a specific implementation, referring to fig. 2 and 3, the prestressed connecting device 22 includes a first segment connecting device 25, a second segment connecting device and a connection adjusting device 23, and one end of the first segment connecting device 25 and one end of the second segment connecting device are respectively connected to the connection adjusting device 23.
Wherein, the other end of the first section of connecting device 25 and the other end of the second section of connecting device are connected to the two ends of the beam formwork respectively, and the connection adjusting device 23 can shorten or prolong the distance between one end of the first section of connecting device 25 and one end of the second section of connecting device.
In one implementation, the connection adjusting device 23 can be connected to one end of the first segment connecting device 25 and one end of the second segment connecting device by a screw thread mode.
The above-described structure enables the connection adjustment device 23 and the two-stage connection device to be adjusted according to the size of the load-bearing beam formwork device 1 or the loading device 2 provided with the prestressed connection device 22 and the required stress thereof. The prestress loading device provided by the invention can be arranged on different loading points according to specific requirements, for example, the prestress loading points are arranged at stress weak positions of the beam formwork device 1. Therefore, the external prestress loading can be realized by fixing the prestress anchoring end through the structure and supporting the corresponding connecting adjusting device 23 and the prestress adjusting device 21 at the bottom of the loading device 2 through the manual loading of the prestress adjusting device 21.
In a specific implementation manner, the prestressed anchoring devices are respectively arranged at the two end parts of the prestressed connecting device 22, and the prestressed anchoring devices are respectively fixed at the top of the adjustable steel supporting device 3 arranged below the loading device 2. The pre-stressed connecting device 22 can be made of steel bar materials. Particularly, the prestress loading device can adopt prestress steel bars, the prestress steel bars have certain bearing capacity and rigidity, and the prestress loading device can have certain rigidity by adopting the prestress steel bars, so that the prestress loading device is convenient to mount and dismount.
In the process of removing the formwork and transferring the beam formwork device 1, the prestress loading device can firstly operate the prestress adjusting device 21 in a manual mode to remove prestress loading, then sequentially dismantle the prestress loading device, the prestress anchoring end and the adjustable steel supporting device 3, realize the dismounting of the whole loading device, and transfer the loading device to other positions for recycling.
The above are merely embodiments of the present invention, which are described in detail and with particularity, and therefore should not be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the spirit of the present invention, and these changes and modifications are within the scope of the present invention.
Claims (8)
1. An external prestressing force loading device of a positioning beam template system is characterized by comprising:
the two ends of the prestress connecting device (22) are respectively connected to the bottoms of the two ends of the beam template;
and the prestress adjusting device (21) is arranged on the prestress connecting device (22) and is used for adjusting the distance between the prestress connecting device (22) and the bottom of the beam formwork.
2. The external prestress loading device of a positioning beam template system according to claim 1, wherein the prestress connecting device (22) comprises a first section connecting device (25), a second section connecting device and a connection adjusting device (23), and one end of the first section connecting device (25) and one end of the second section connecting device are respectively connected to the connection adjusting device (23).
3. The external prestress loading device of a positioning beam formwork system according to claim 2, wherein the other end of the first section connecting device (25) and the other end of the second section connecting device are respectively connected to both ends of the beam formwork.
4. The external prestressing device of claim 2, wherein the connection adjusting means (23) is adapted to shorten or lengthen the distance between one end of the first section of connecting means (25) and one end of the second section of connecting means.
5. The external prestress loading device of a positioning beam template system according to claim 4, wherein the connection adjusting device (23) is in threaded connection with one end of the first section of connecting device (25) and one end of the second section of connecting device respectively.
6. The external prestress loading device of a positioning beam formwork system according to claim 1, wherein the prestress connecting device (22) is made of steel bar material.
7. An external prestressed loading unit for a positioning beam formwork system according to claim 6, further comprising prestressed anchorage means respectively provided at both end portions of the prestressed connecting means (22) and respectively fixed to the top of the adjustable steel supporting means (3) provided below the loading means 2.
8. The external prestress loading device of a positioning beam formwork system according to claim 1, wherein the prestress adjusting device (21) comprises a mounting seat mounted on the prestress connecting device (22) and a loading rod mounted on the mounting seat in a threaded manner, and the top end of the loading rod abuts against the bottom of the beam formwork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110168964.7A CN112878672A (en) | 2021-02-07 | 2021-02-07 | External prestress loading device of positioning beam template system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110168964.7A CN112878672A (en) | 2021-02-07 | 2021-02-07 | External prestress loading device of positioning beam template system |
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| Publication Number | Publication Date |
|---|---|
| CN112878672A true CN112878672A (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110168964.7A Pending CN112878672A (en) | 2021-02-07 | 2021-02-07 | External prestress loading device of positioning beam template system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112942820A (en) * | 2021-02-07 | 2021-06-11 | 东南大学 | Bear formula metal modularization roof beam template device and system |
-
2021
- 2021-02-07 CN CN202110168964.7A patent/CN112878672A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112942820A (en) * | 2021-02-07 | 2021-06-11 | 东南大学 | Bear formula metal modularization roof beam template device and system |
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