Construction method and device for ultrahigh concrete batten

Abstract

The construction method comprises the following steps that a bearing frame is installed, specifically, vertical additional steel columns and transverse additional steel beams are installed between a lower-layer steel bar truss floor bearing plate and an upper-layer steel bar truss floor bearing plate, and the vertical additional steel columns and the transverse additional steel columns are installed in a cross shape; first through-length angle steel is installed at the bottom of the upper-layer steel bar truss floor support plate, second through-length angle steel is installed at the top of the transverse additional steel beam, and a positioning groove of a rectangular frame structure is formed by connecting lines of side plates of the first through-length angle steel and side plates of the second through-length angle steel; the battens are installed, specifically, the battens are installed in the positioning grooves, the outer side corners of the tops of the battens are connected with the first through-length angle steel in an attached mode, and the inner side corners of the bottoms of the battens are connected with the second through-length angle steel in an attached mode; and batten fixing construction is conducted, specifically, the top and the bottom of the batten are fixedly connected with the first through-length angle steel and the second through-length angle steel correspondingly through hook bolts. The purpose of improving the construction efficiency is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to a construction method and device for super-high concrete slabs. Background Art

[0002] With the development of prefabricated buildings and steel structure systems, the supporting enclosure structure system has also changed from traditional masonry to a wall panel system based on autoclaved aerated concrete strips (ALC strips). ALC strips are porous concrete panels formed by high-pressure steam curing. They have many advantages such as light weight, high strength, good ductility, strong earthquake resistance, good thermal insulation and sound insulation, fire resistance and durability. At the same time, ALC strips can be arranged and processed in advance according to on-site construction conditions, and directly transported to the site for assembly after production, which effectively improves construction efficiency. Therefore, ALC strips are widely used in domestic and foreign projects.

[0003] However, in some buildings with specific functions, tall and large spaces have become a rigid requirement, such as gymnasiums, industrial plant warehouses, activity centers, etc. Due to the requirements of floor height, the height of ALC strips will exceed the height value in the specification, forming super-high ALC strips. At present, when installing super-high ALC panels, the installation stability is poor due to the super height, resulting in low construction efficiency. Summary of the invention

[0004] The embodiments of this specification provide a construction method and device for super-high concrete strip boards, which are used to solve the problem in the prior art that super-long ALC boards have poor installation stability due to their super-height, resulting in low construction efficiency.

[0005] The technical solutions provided by the embodiments of this specification are: In a first aspect, an embodiment of the present application provides a construction method for an ultra-high concrete slab, comprising the following steps: Installation of the bearing frame: Install additional vertical steel columns and additional horizontal steel beams between the lower steel truss floor deck and the upper steel truss floor deck. The additional vertical steel columns and the additional horizontal steel columns are installed in a cross shape. Installation at fixed position: install the first full-length angle steel at the bottom of the upper steel truss floor deck, install the second full-length angle steel at the top of the transverse additional steel beam, and the side plate of the first full-length angle steel and the side plate of the second full-length angle steel are connected to form a positioning groove of a rectangular frame structure; The strip board is installed by installing the strip board in the positioning groove, the top outer corner of the strip board is fitted and connected with the first full-length angle steel, and the bottom inner corner of the strip board is fitted and connected with the second full-length angle steel.

[0006] The strip plate is fixedly constructed by fixing the top and bottom of the strip plate to the first full-length angle steel and the second full-length angle steel respectively through hook bolts.

[0007] Furthermore, a third full-length angle steel is respectively provided on two adjacent vertical additional steel columns, and the inner corners at both ends of the strip plate are fitted and connected to the third full-length angle steel.

[0008] Furthermore, a steel sub-frame is installed on one side of the vertical additional steel column, the steel sub-frame is detachably connected to the vertical additional steel column, and the side of the steel sub-frame away from the vertical additional steel column is connected to the door and window frames.

[0009] In a second aspect, an embodiment of the present application provides a device for a construction method of an ultra-high concrete slab, comprising: A vertical additional steel column with a plug at one end and a connecting flange at the other end; A steel beam is attached laterally, with slots at the top and bottom that match the plugs; The first full-length angle steel is installed on the upper steel truss floor deck; The second full-length angle steel is installed on the transverse additional steel beam; The strip plate is arranged between the upper steel truss floor deck and the transverse additional steel beam, and is positioned by the first full-length angle steel and the second full-length angle steel; A fixing device, wherein the strip plate is fixed to the first full-length angle steel and the second full-length angle steel through the fixing device.

[0010] Furthermore, the fixing device comprises a hook bolt, and the first full-length angle steel is fixedly connected to the strip plate via the hook bolt; The first full-length angle steel is provided with a first through hole, the strip plate is provided with a second through hole, and one end of the hook bolt can pass through the first through hole and the second through hole at the same time.

[0011] Furthermore, third full-length angle steels are respectively provided on both sides of the vertical additional steel column, and the third full-length angle steels are connected to both sides of the strip plate.

[0012] Furthermore, threaded holes penetrating into the slots are respectively provided on both sides of the transverse additional steel beam.

[0013] Furthermore, a steel sub-frame is connected to one side of the vertical additional steel column, and the steel sub-frame is connected to the door and window frames; a slot composed of two L-shaped angle steels is provided on one side of the vertical additional steel column, and a block matching the slot is provided on one side of the steel sub-frame.

[0014] At least one of the above-mentioned technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects: by adding additional vertical steel columns and additional horizontal steel beams, the ALC strips are fixed between the floor decking plates and stabilized by the fixing device, so as to achieve stable installation of the overall structure, ensure the construction quality of the exterior wall and improve the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 This is a schematic diagram of the construction method provided in the embodiments of this specification.

[0016] Figure 2 This is a schematic diagram of the vertical cross-sectional structure of the exterior wall provided in the embodiment of this specification.

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the vertical additional steel column provided in the embodiment of this specification in the top view direction.

[0018] Figure 4 This is a schematic diagram of the connection structure between steel columns and steel beams provided in an embodiment of this specification.

[0019] Figure 5 This is a schematic diagram of the connection structure of the strip plate, hook bolt and angle steel provided in the embodiment of this specification.

[0020] Figure 6 This is a schematic diagram of the connection structure between the strip plate and the main steel structure provided in the embodiment of this specification.

[0021] Figure 7 This is a schematic diagram of the connection structure between the vertical additional steel column and the door and window frame provided in the embodiment of this specification.

[0022] Figure 8 This is a schematic diagram of the connection structure between the vertical additional steel column and the steel sub-frame provided in the embodiment of this specification. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0024] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0025] Example 1 Example 1 of this specification provides a construction method for super-high concrete slabs, please refer to Figure 1 As shown, the method comprises the following steps: S1. Installation of bearing frame: vertical additional steel columns and transverse additional steel beams are installed between the lower steel truss floor deck B (lower floor deck) and the upper steel truss floor deck A (upper floor deck). The vertical additional steel columns and the transverse additional steel columns are installed in a cross shape; In a possible implementation, in the vertical direction, an additional transverse steel beam 9 with a cross-sectional dimension of 150 mm in width, 200 mm in height, and 6 mm in thickness is arranged between different ALC slats 1 every 6 m; in the transverse direction, an additional vertical steel column 10 with a cross-sectional dimension of 150 mm in width, 200 mm in height, and 8 mm in thickness is arranged between different ALC slats every 6 m.

[0026] S2, fixed position installation: install the first full-length angle steel at the bottom of the upper steel truss floor deck, install the second full-length angle steel at the top of the transverse additional steel beam, and the side plate of the first full-length angle steel and the side plate of the second full-length angle steel are connected to form a positioning groove of a rectangular frame structure; In a possible implementation, a first full-length angle steel is welded along one side of the outer edge of the upper floor deck, and a second full-length angle steel is welded at the top of the transverse additional steel beam close to the indoor side.

[0027] It should be noted that the full-length angle steel installed at the top of the lower floor slab and the bottom of the transverse additional steel beam is basically the same as the full-length angle steel installed at the bottom of the upper steel truss floor slab and the top of the transverse additional steel beam. The difference is that, for example, 80 mm*80 mm*6 mm flat irons are fixed at certain intervals on the lower floor slab by M12 expansion bolts, and L63 mm*6 mm full-length angle steels are welded on the side of the flat irons close to the outer edge of the floor slab. The lower ALC strips are vertically placed on the floor slab in conjunction with the full-length angle steels.

[0028] The installation method of the slats at the top and bottom of the transverse additional steel beam is basically the same, and will not be repeated here. Only the upper part of the transverse additional steel beam is used for illustrative explanation. It should be understood that the illustrative explanation should not be used as a limitation on the scope of protection of this application.

[0029] S3, installing the strip board, installing the strip board in the positioning groove, the top outer corner of the strip board is connected with the first full-length angle steel, and the bottom inner corner of the strip board is connected with the second full-length angle steel; S4, the strip plate fixing construction, the top and bottom of the strip plate are fixedly connected to the first full-length angle steel and the second full-length angle steel respectively by hook bolts.

[0030] In a possible implementation, one end of the hook bolt is passed through the first through hole on the first full-length angle steel and the second through hole on the strip plate at the same time, and the nut is tightened to lock and fix the strip plate. The strip plate is installed.

[0031] In this embodiment, the ALC slats are fixed between the floor decking plates by adding additional steel columns and additional steel beams and connecting them with hook bolts and angle steels. The overall structure is stable, which ensures the construction quality of the exterior wall. Compared with the prior art, the construction is more convenient and more stable. When necessary, an insulation layer is installed on the outer layer to improve the thermal insulation performance of the exterior wall. The present invention has the characteristics of safety, applicability, and convenient construction, and has great promotion and application value. By detachably connecting the slats to the steel beams and steel columns, when a certain slat is damaged, only the slat needs to be replaced, which improves construction efficiency and reduces construction costs. Improve maintenance flexibility.

[0032] Furthermore, two adjacent vertical additional steel columns are provided with third full-length angle steels, and the inner corners at both ends of the strip are fitted and connected with the third full-length angle steels. The two sides of the strip are fixed to further improve the stability of the strip installation.

[0033] Furthermore, a steel sub-frame is installed on one side of the vertical additional steel column, and the steel sub-frame is detachably connected to the vertical additional steel column, and the side of the steel sub-frame away from the vertical additional steel column is connected to the door and window frame. For example, at the node of the door and window frame, the door and window frame is connected to the steel sub-frame with a cross-sectional size of 20 mm in width, 40 mm in length, and 2 mm in thickness through a 4.8 mm*60 mm stainless steel self-drilling nail, and the steel sub-frame of the door and window and the additional steel column can be detachably connected or welded. This embodiment adopts a detachable connection method, and an insulation layer is added to the outside of the additional steel column (vertical additional steel column). The insulation layer and the additional steel column are bonded with structural adhesive or welded to the additional steel column with 6# lead wire. It should be noted that the size of the steel sub-frame is selected according to needs to improve the flexibility of installing the door and window frames.

[0034] Example 2 Example 2 of this specification provides a device for the construction method of super-high concrete slabs, please refer to Figure 2 and Figure 3 As shown, it includes a vertical additional steel column 1, a transverse additional steel beam 2, a first full-length angle steel 3, a second full-length angle steel 4 and a strip plate 5: Among them, see Figure 4As shown, a plug 11 is provided at one end of the vertical additional steel column 1, and a connecting flange 12 is provided at the other end; it is connected to the upper floor decking or the lower floor decking through the connecting flange. Slots 21 matching the plug 11 are provided at the top and bottom of the transverse additional steel beam 2 respectively; threaded holes 22 penetrating into the slots are provided on both sides of the transverse additional steel beam 2 for locking the plugs to improve the stability of the connection. The first full-length angle steel 3 is installed on the upper steel truss floor decking A; the second full-length angle steel 4 is installed on the transverse additional steel beam 2; the strip plate 5 is arranged between the upper steel truss floor decking and the transverse additional steel beam, and is positioned by the first full-length angle steel 3 and the second full-length angle steel 4; the strip plate is fixed to the first full-length angle steel and the second full-length angle steel by a fixing device. In a possible implementation, please refer to Figure 5 As shown, the fixing device includes a hook head bolt 6, and the first full-length angle steel is fixedly connected to the strip plate 5 through the hook head bolt 6; the first full-length angle steel is provided with a first through hole 31, and the strip plate is provided with a second through hole 52, and one end of the hook head bolt can pass through the first through hole and the second through hole at the same time. When in use, it is convenient to install and disassemble the strip plate, and the strip plate can be replaced and maintained at a fixed point, thereby improving the flexibility of construction and maintenance. It should be noted that the strip plate and the angle steel are connected in the same way by the hook head bolt, and no repeated description is made.

[0035] For further optimization, please continue to refer to Figure 2 As shown, the third full-length angle steel 7 is respectively provided on both sides of the vertical additional steel column 1, and the third full-length angle steel is connected to both sides of the strip. The four sides of the strip are fixed by four full-length angle steels (the first full-length angle steel, the second full-length angle steel and two third full-length angle steels), further improving the stability of the strip installation.

[0036] For further information, see Figure 6 As shown, for the connection nodes between the transverse strips with a height of more than 6m and the main structure steel column C, angle steels are welded on both sides of the steel column C, and fixed hook bolts are installed inside the ALC strips, and one end of the hook bolts is connected to the angle steel.

[0037] For further details, please refer to Figure 7 and Figure 8 As shown, one side of the vertical additional steel column 1 is connected to a steel sub-frame 8, and the steel sub-frame 8 is connected to the door and window frame D; one side of the vertical additional steel column 1 is provided with a slot 13 composed of two L-shaped angle steels, and one side of the steel sub-frame is provided with a block 81 matching the slot. It is easy to install when in use, no welding is required, and it is easy to disassemble and replace. Further, by providing a fastening bolt 14 on the side of the slot, the fastening bolt can be used to further fasten the block to improve stability.

[0038] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0039] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A construction method for super-high concrete slabs, characterized in that: The following steps are involved: Installation of the bearing frame: Install additional vertical steel columns and additional horizontal steel beams between the lower steel truss floor deck and the upper steel truss floor deck. The additional vertical steel columns and the additional horizontal steel columns are installed in a cross shape. Installation at fixed position: install the first full-length angle steel at the bottom of the upper steel truss floor deck, install the second full-length angle steel at the top of the transverse additional steel beam, and the side plate of the first full-length angle steel and the side plate of the second full-length angle steel are connected to form a positioning groove of a rectangular frame structure; The strip plate is installed in the positioning groove, the top outer corner of the strip plate is connected with the first full-length angle steel, and the bottom inner corner of the strip plate is connected with the second full-length angle steel; The strip plate is fixedly constructed by fixing the top and bottom of the strip plate to the first full-length angle steel and the second full-length angle steel respectively through hook bolts.

2. A construction method for super-high concrete slab according to claim 1, characterized in that: A third full-length angle steel is respectively provided on two adjacent vertical additional steel columns, and the inner corners at both ends of the strip plate are fitted and connected with the third full-length angle steel.

3. A construction method for super high concrete slab according to claim 1, characterized in that: A steel sub-frame is installed on one side of the vertical additional steel column. The steel sub-frame is detachably connected to the vertical additional steel column. The side of the steel sub-frame away from the vertical additional steel column is connected to the door and window frames.

4. A device for the construction method of super-high concrete slab, characterized in that: include: A vertical additional steel column with a plug at one end and a connecting flange at the other end; A steel beam is attached laterally, with slots at the top and bottom that match the plugs; The first full-length angle steel is installed on the upper steel truss floor deck; The second full-length angle steel is installed on the transverse additional steel beam; The strip plate is arranged between the upper steel truss floor deck and the transverse additional steel beam, and is positioned by the first full-length angle steel and the second full-length angle steel; A fixing device, wherein the strip plate is fixed to the first full-length angle steel and the second full-length angle steel through the fixing device.

5. The device for the construction method of super-high concrete slab according to claim 4, characterized in that: The fixing device comprises a hook bolt, and the first full-length angle steel is fixedly connected to the strip plate via the hook bolt; The first full-length angle steel is provided with a first through hole, the strip plate is provided with a second through hole, and one end of the hook bolt can pass through the first through hole and the second through hole at the same time.

6. The device for the construction method of super high concrete slab according to claim 4, characterized in that: A third full-length angle steel is respectively provided on both sides of the vertical additional steel column, and the third full-length angle steel is connected to both sides of the strip plate.

7. The device for the construction method of super-high concrete slab according to claim 4, characterized in that: Threaded holes penetrating into the slots are respectively provided on both sides of the transverse additional steel beam.

8. The device for the construction method of super high concrete slab according to claim 4, characterized in that: One side of the vertical additional steel column is connected to a steel sub-frame, and the steel sub-frame is connected to the door and window frames; one side of the vertical additional steel column is provided with a slot composed of two L-shaped angle steels, and one side of the steel sub-frame is provided with a block matching the slot.

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