阅读说明：本技术 一种独立式定位、承载钢筋混凝土板模的预应力架体系统 (Prestressing force mount system of independent type location, bearing reinforced concrete form ) 是由 张宏 吴京 罗申 孙逊 汤奕 刘东卫 石慧 丛勐 伍雁华 董文俊 田炜 张睿哲 于 2021-02-07 设计创作，主要内容包括：本发明提供一种独立式定位、承载钢筋混凝土板模的预应力架体系统。其包括设置在预应力架体系统的下方、用于支撑预应力架体系统的可调钢支撑,所述可调钢支撑的顶部安装有预应力加载装置,以承载起顶部的板模板。本发明利用预应力技术,能够在施工过程中显著减少现场支撑,简化施工工序,提高现场建造效率。本发明通过架体系统实现对板模板的定位、承载,同时利用预应力技术简化支撑结构,以针对板模板进行装配和拆卸过程优化。(The invention provides a prestressed framework system for independently positioning and bearing a reinforced concrete slab mold. The adjustable steel support is arranged below the prestressed frame system and used for supporting the prestressed frame system, and a prestress loading device is installed at the top of the adjustable steel support to load a plate template at the top. The invention utilizes the prestress technology, can obviously reduce the field support in the construction process, simplifies the construction process and improves the field construction efficiency. The invention realizes the positioning and bearing of the plate template through the frame system, and simultaneously utilizes the prestress technology to simplify the supporting structure so as to optimize the assembling and disassembling processes of the plate template.)

1. The utility model provides a prestressing force mount system of stand alone type location, bearing reinforced concrete form, its characterized in that includes:

the adjustable steel support (3) is arranged below the prestressed frame system and is used for supporting the prestressed frame system;

the prestress loading device (2) is arranged at the top of the adjustable steel support (3);

the plate template (1) is arranged on the prestress loading device (2).

2. A free-standing positioning, load-bearing prestressed scaffolding system of reinforced concrete slab forms according to claim 1, characterized in that said prestressing loading means (2) comprises:

the prestressed steel beam (21) is positioned at the top of the prestressed loading device (2);

the two ends of the prestress connecting device (22) are respectively connected to the two ends of the prestress steel beam (21);

the prestress adjusting device (23) is arranged on the prestress connecting device (22) and is used for adjusting the distance between the prestress connecting device (22) and the prestress steel beam (21);

the plate template (1) is installed on the prestressed steel beam (21).

3. A freestanding, load-carrying, prestressed scaffolding system for a reinforced concrete slab form as claimed in claim 2, wherein said prestressed attachment means (22) includes first and second lengths of attachment means and attachment adjustment means (24), one end of each of the first and second lengths of attachment means being attached to the attachment adjustment means (24).

4. A freestanding, load-bearing, prestressed scaffolding system for a reinforced concrete slab form as claimed in claim 3, wherein the other ends of said first and second lengths of connecting means are connected to respective ends of prestressed steel beams (21).

5. A freestanding frame system for positioning and carrying reinforced concrete slab forms as claimed in claim 3, wherein said connection adjustment means (24) is capable of shortening or lengthening the distance between one end of the first length of connection means and one end of the second length of connection means.

6. A free standing formwork system for positioning and supporting reinforced concrete slabs according to claim 5, wherein said connection adjustment means (24) is threadedly connected to one end of the first section of connection means and one end of the second section of connection means, respectively.

7. A freestanding, load-bearing, prestressed scaffolding system for a reinforced concrete slab form as claimed in claim 1, wherein said prestressed attachment means (22) comprises a reinforcing steel material.

8. A prestressed scaffolding system for freestanding, load-bearing reinforced concrete slab forms as claimed in claim 7, further comprising prestressed anchorage means (25) respectively provided at both end portions of the prestressed attachment means (22) and respectively fixed to the top of the means of adjustable steel supports (3) provided below the loading means.

9. A freestanding, positioned, load-bearing, prestressed reinforcement concrete slab formwork system, as claimed in claim 1, wherein said prestressing adjustment means (23) comprises a mounting base (231) mounted on the prestressing attachment means (22) and a loading bar (232) threadably mounted on the mounting base (231), the top end of said loading bar (232) abutting against the bottom of the prestressed steel beam (21).

10. A freestanding, load-bearing, prestressed scaffolding system for a reinforced concrete form according to claim 1, wherein said form (1) is one of a steel form, an aluminium form, a wooden form or a PVC form.

Technical Field

The invention relates to the field of building engineering construction, in particular to a prestressed framework system for independently positioning and bearing a reinforced concrete slab form.

Background

At present, the existing reinforced concrete structure is a building form widely adopted in the field of building construction, and 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 construction process of the reinforced concrete structure, the vertical components mainly comprise components such as columns, shear walls and the like, and the horizontal components mainly comprise beam and plate components. The construction process of the reinforced concrete slab is the most complicated, the span of the reinforced concrete slab is large, a large number of supports need to be arranged in the construction process, the normal passing of constructors is influenced, the expansion of a working surface in the construction process of the reinforced concrete is blocked, the difficulty in parallel construction is caused, and the influence on the whole construction efficiency and the construction progress of the reinforced concrete structure is large.

The prestress technology is a technology capable of improving the bearing capacity of a structural member, and improves the performance of the structure during service by preloading prestress. At present, the prestress technology is mainly applied to reinforced concrete members to improve the bearing capacity of the reinforced concrete horizontal members, and is rarely applied in the construction field. If the prestress technology is applied in the field of reinforced concrete construction, the template bearing capacity of horizontal members such as beams and plates can be obviously improved, the field support is reduced, and the overall construction efficiency of reinforced concrete engineering is improved.

Although research suggests that the service performance of the structure can be improved through prestress, the external prestress technology is applied less and is applied more rarely in the construction field. The problems of how to pre-stress the structure during construction, how to pre-stress the structure during the service of the structure to fully or partially offset the tensile stress caused by the load, and how to improve the bearing capacity of the structure are not solved all the time.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a prestressed framework system for independently positioning and bearing a reinforced concrete slab form. The invention specifically adopts the following technical scheme.

In order to achieve the above object, a prestressed frame system for a free-standing positioning and bearing reinforced concrete slab form is provided, which comprises: the adjustable steel support is arranged below the prestressed frame system and is used for supporting the prestressed frame system; the prestress loading device is arranged on the top of the adjustable steel support; and the plate template is installed on the prestress loading device.

Optionally, the prestressed frame system for independent positioning and bearing of the reinforced concrete slab form, wherein the prestressed loading device includes: the prestressed steel beam is positioned at the top of the prestressed loading device; the two ends of the prestress connecting device are respectively connected to the two ends of the prestress steel beam; the prestress adjusting device is arranged on the prestress connecting device and adjusts the distance between the prestress connecting device and the prestress steel beam; the plate template is installed on the prestressed steel beam.

Optionally, the prestressed frame system of the independent positioning and bearing reinforced concrete slab form includes a first section of connecting device, a second section of connecting device, and a connection adjusting device, where one end of the first section of connecting device and one end of the second section of connecting device are respectively connected to the connection adjusting device.

Optionally, 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 prestressed steel beam respectively.

Optionally, the prestressed frame system for free-standing positioning and bearing of the reinforced concrete slab form is further provided, wherein the connection adjusting device is capable of shortening or lengthening 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 connecting 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 prestressed frame system of the independent positioning and bearing reinforced concrete slab form is provided, wherein the prestressed connecting device is made of a reinforced material.

Optionally, the prestressed framework system for independently positioning and bearing the reinforced concrete slab form 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 supporting device disposed below the loading device.

Optionally, the prestressed frame system of the independent positioning and bearing reinforced concrete slab form includes a mounting base mounted on the prestressed connecting device and a loading rod mounted on the mounting base in a threaded connection manner, and a top end of the loading rod abuts against a bottom of the prestressed steel beam.

Optionally, the prestressed framework system of the independent positioning and bearing reinforced concrete form is a form of a steel form, an aluminum form, a wood form or a PVC form.

Advantageous effects

The invention is characterized in that a prestress loading device is arranged at the top of the adjustable steel support to bear the plate template at the top. The prestress technology can obviously reduce on-site support in the construction process, simplify the construction process and improve the on-site construction efficiency. The invention can also simplify the original supporting structure by utilizing the prestress technology so as to carry out early die-stripping optimization on the plate template.

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 view of the overall construction of the freestanding positioning, load bearing reinforced concrete slab form prestressed scaffolding system of the present invention;

FIG. 2 is a schematic illustration of the connection between the components of the prestressed scaffolding system of the present invention;

FIG. 3 is a schematic structural view of a single prestressed frame body according to the present invention;

fig. 4 is a schematic structural view of a prestress loading device in the prestress frame of the present invention.

In the drawings, 1 denotes a plate template; 2 denotes a prestressing force loading device; 21 denotes a prestressed steel beam; 22 denotes a prestressed attachment; 23 denotes a prestress adjusting device; 231 denotes a mount; 232 denotes a load lever; 24 denotes a connection adjusting device; 25 denotes a prestressed anchoring device; and 3 denotes an adjustable steel support.

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 meaning of "and/or" in the present invention means that the respective single or both of them exist individually or in combination.

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 when a user faces the pre-stressed frame system, the direction of the adjustable steel support pointing to the plate formwork is up, otherwise, it is down, and not a specific limitation to the mechanism of the device of the present invention.

The invention provides a prestressed framework system capable of independently positioning and bearing a reinforced concrete slab form, which is mainly applied to cast-in-place reinforced concrete engineering and is shown in a figure 1 and a figure 2, and the prestressed framework system comprises an independent adjustable steel support 3, an independent prestress loading device 2, a slab form 1 system, a prestress anchoring device 25 and a slab form system matched with the prestress anchoring device.

The prestressed frame system can be freely arranged according to different sizes of reinforced concrete structures, and the frame bodies are connected through inclined struts or rod pieces to ensure the stability of the whole system.

In the prestress frame system of the independent positioning and bearing reinforced concrete slab mold:

and the adjustable steel support 3 is arranged below the prestressed frame system and is used for supporting the prestressed frame system.

The prestress loading device 2 is arranged at the top of the adjustable steel support 3;

the plate template 1 is arranged on a prestress loading device 2.

As shown in fig. 3 and 4, the prestress loading device 2 includes: the prestressed steel beam comprises a prestressed steel beam 21, a prestressed connecting device 22, a prestressed adjusting device 23, a connecting adjusting device 24 and a prestressed anchoring device 25. Wherein:

the prestressed steel beam 21 is positioned at the top of the prestressed loading device 2.

A prestress connecting device 22, both ends of which are connected to both ends of the prestress steel beam 21, respectively; which specifically includes a first segment of attachment means, a second segment of attachment means, and a connection adjustment means 24. One end of the first section of connecting device and one end of the second section of connecting device are respectively connected to the connecting and adjusting device 24, and the other ends of the first section of connecting device and the second section of connecting device are respectively connected to two ends of the prestressed steel beam 21. Thus, the connection adjustment device 24 can shorten or lengthen the distance between one end of the first segment of the connection device and one end of the second segment of the connection device. In a specific implementation, the connection adjustment device 24 may be selectively connected to one end of the first segment of the connection device and one end of the second segment of the connection device by a screw thread.

The prestress adjusting device 23 is installed on the prestress connecting device 22 and is used for adjusting the distance between the prestress connecting device 22 and the prestress steel beam 21. In a more specific implementation manner, as shown in fig. 4, the method specifically includes: a mounting seat 231 mounted on the prestressed coupling device 22, and a loading rod 232 mounted on the mounting seat 231 by means of screw connection. The top end of the loading rod 232 is abutted to the bottom of the prestressed steel beam 21, so that the prestress on the prestressed connecting device 22 is adjusted. The pre-stressed attachment means 22 may, in one form, be formed from a reinforced material, and may in particular be pre-stressed steel. The prestressed reinforcement has certain bearing capacity and rigidity, and the prestressed reinforcement is adopted to enable the prestressed loading device to have certain rigidity, so that the prestressed loading device is further convenient to mount and dismount.

The plate formwork 1 is mounted on a plurality of prestressed steel beams 21, so that a complete prestressed frame system structure is realized. The structure also comprises prestressed anchoring devices 25 which are respectively arranged at the end parts of the two ends of the prestressed connecting device 22 and are respectively fixed at the top of the adjustable steel support 3 device arranged below the loading device. In this way, the top of the adjustable steel support 3 can thus be provided with the prestressed anchorage means 25 independently. The independently arranged prestressed anchoring device 25 component is connected with the prestressed steel beam 21 and the adjustable steel support 3 through bolts, loading points can be arranged according to different specific requirements, the prestressed loading points are arranged at the stress weak positions of the prestressed steel beam 21 and are fixed through the prestressed anchoring device 25, and external prestressed loading is realized through manually loading the bottom jacking device. The prestress adjusting device 23 used for manual loading may specifically include a mounting seat mounted on the prestress connecting device 22 and a loading rod mounted on the mounting seat in a threaded connection manner, a top end of the loading rod abuts against a bottom of the prestress steel beam 21, and a distance between the prestress connecting device 22 and the bottom of the prestress steel beam 21 is adjusted in a manual manner to provide prestress, so that more effective external prestress loading is realized.

In the present invention, after the prestressed steel beam 21 is used, the turnaround can be performed as follows. In the turnover process, after the plate formwork 1 is disassembled, each steel beam and the prestress loading device 2 connected with the steel beam are subjected to the following steps: the prestress loading is firstly released manually, and then the prestress connecting device 22, the prestress anchoring device 25 and the adjustable steel support 3 are disassembled in sequence so as to be circulated to other positions for recycling.

Therefore, the invention applies the external prestressing force device loading device to the construction field of the reinforced concrete slab template 1 and provides a prestressing force frame system suitable for the reinforced concrete slab template 1. The prestressed frame system can be assembled quickly and can be disassembled at any time. The prestress frame system can adjust the prestress loading size according to the requirement in a manual mode so as to improve the bearing capacity of the frame. The components are detachably connected, so that the frame and the template can be quickly dismantled after the reinforced concrete is poured, and the invention can be used for turnover type support in the construction process or temporary reinforcement of buildings.

The prestressed framework system provided by the invention can be further combined with a turnover template such as a steel template, an aluminum template, a wood template or a PVC template and the like to be used as the template 1, the template can be dismantled when the strength of the reinforced concrete to be maintained reaches 50%, the turnover efficiency of the template is improved, and the project cost is reduced.

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.