A single-face slip-form construction method for a steep-slope roof structure

Abstract

The present application relates to a kind of large slope roof structure single face slip form construction method, comprising the following steps: a. construction large slope concrete roof lower formwork;B. tie up roof reinforcement on lower formwork;C. multiple steel bar support extending along inclined roof is arranged on lower formwork, steel bar is provided as slide rail on the top of steel bar support;D. connect multiple sliding formworks, support moving structure is provided on the bottom surface of sliding formwork, support moving structure is used to move along slide rail, vibrator is provided on sliding formwork;E. fixedly install traction mechanism on the upper end of concrete roof, traction rope is connected on sliding formwork, traction rope is connected with traction mechanism;F. from bottom to top, concrete roof is poured on lower formwork, while pouring, start traction mechanism to drive sliding formwork gradually moves upwards;G. remove traction mechanism and sliding formwork;H. to the concrete roof of forming finish construction.The present application is low in cost and can guarantee pouring quality.

Description

Technical Field

[0001] This invention relates to a roof construction method, specifically a single-sided slipform construction method for a steep-slope roof structure. Background Technology

[0002] Existing methods for constructing steeply sloping concrete roofs typically involve two approaches: one is manual compaction, a commonly used method where the concrete density is difficult to control, leading to issues like pitting and exposed reinforcement, resulting in common quality problems such as roof leaks; the other is double-sided formwork, which is prone to issues like honeycomb and voids if the concrete is not properly vibrated, and is also more expensive. Especially for steeply sloping concrete roofs with large spans, ensuring the thickness and quality of the poured concrete is challenging. Summary of the Invention

[0003] The purpose of this invention is to provide a single-sided slipform construction method for steep-slope roof structures, in order to solve the problems of high cost and poor concrete quality in existing construction methods for steep-slope sloping concrete roofs.

[0004] The present invention is implemented as follows: a single-sided slipform construction method for a steep roof structure, comprising the following steps.

[0005] a. Formwork for the lower part of a steeply sloping concrete roof.

[0006] b. Tie the roof reinforcement bars on the lower formwork.

[0007] c. Multiple steel reinforcement supports extending vertically along the sloping roof are arranged on the lower template. The steel reinforcement supports are fixedly connected to the roof reinforcement. A steel bar parallel to the sloping roof is provided at the top of the steel reinforcement supports as a slide rail.

[0008] d. Connect multiple sliding templates according to the width of the concrete roof. The bottom surface of the sliding template is a plane. A supporting moving structure is set on the bottom surface of the sliding template. The supporting moving structure is used to move along the slide rail. The sliding template is placed on the slide rail and located at the lower end of the concrete roof. A vibrator is set on the sliding template.

[0009] e. A traction mechanism is fixedly installed at the upper end of the concrete roof, and a traction rope is connected to the sliding formwork. The traction rope is connected to the traction mechanism.

[0010] f. Pour the concrete roof onto the lower formwork from bottom to top. Simultaneously, activate the traction mechanism to gradually move the sliding formwork upwards, completing the pouring of the concrete roof.

[0011] g. Dismantle the traction mechanism and sliding formwork.

[0012] h. Perform finishing work on the formed concrete roof.

[0013] Furthermore, at least one set of supporting movable structures is installed on the sliding template, and there are at least two supporting movable structures in the set, with multiple supporting movable structures in the set arranged along the slide rail direction.

[0014] Furthermore, the supporting movable structure includes a support and a sliding member. The support is fixedly installed on the bottom surface of the sliding template, and the sliding member is fixedly installed on the support. A receiving groove for matching and connecting with the slide rail is provided at the lower part of the sliding member.

[0015] Furthermore, the sliding template has a hollow structure. After the sliding template is installed, sand can be filled into the sliding template to increase its weight as needed.

[0016] Furthermore, the steel reinforcement support includes a rectangular frame, connecting bars, and a slide rail. The rectangular frames are evenly distributed along the inclined direction of the concrete roof. The connecting bars pass through all the rectangular frames and are connected to all the rectangular frames. The slide rail is located in the middle above the rectangular frames and is connected to all the rectangular frames. In step c, the rectangular frames and connecting bars are tied and fixed together with the roof steel reinforcement.

[0017] Furthermore, there are at least two traction mechanisms, which are through-hole jacks. In step f, all traction mechanisms are controlled to operate synchronously.

[0018] Furthermore, the height of the slide rail is lower than the height of the concrete roof surface, and after the sliding template is placed on the slide rail, the bottom surface of the sliding template is at the same height as the concrete roof surface.

[0019] Furthermore, a full-span scaffold is erected in front of the lower formwork, and the lower formwork is laid on the full-span scaffold.

[0020] This invention uses a single-sided sliding formwork to construct inclined concrete roofs. The lower formwork of the concrete roof is erected in a traditional way, which is less costly. During the pouring of the concrete roof, the sliding formwork shapes and vibrates the upper surface. The single-sided sliding formwork can ensure the quality of the roof concrete construction with less formwork work, with only a slight increase in cost, while significantly reducing potential quality problems and lowering later maintenance costs.

[0021] The sliding formwork, supported and guided by rails on the steel reinforcement support, effectively ensures the thickness and flatness of the roof concrete. Furthermore, the steel reinforcement support is directly cast within the concrete roof, eliminating the need for its removal and ensuring unobstructed flow of concrete on both sides of the rails and the passage of roof reinforcement. This results in a monolithic concrete roof structure after pouring, preventing defects such as gaps. After the sliding formwork moves and vibrates, the concrete automatically fills and compacts the area above the steel reinforcement support, preventing the support and rails from being exposed.

[0022] The sliding template has a modular structure, which can be reused repeatedly, reducing the cost of use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the single-sided slipform construction of the present invention.

[0024] Figure 2 yes Figure 1 Top view.

[0025] Figure 3 This is a schematic diagram of the connection between the sliding template and the steel reinforcement support of the present invention.

[0026] Figure 4 This is a schematic diagram of the connection between the movable support structure and the steel reinforcement bracket of the present invention.

[0027] In the diagram: 1. Full-span scaffolding; 2. Lower formwork; 3. Reinforcing bar support; 4. Sliding formwork; 5. Traction rope; 6. Traction mechanism; 7. Concrete roof; 8. Supporting moving structure; 3-1. Slide rail; 3-2. Rectangular frame; 3-3. Connecting bar; 8-1. Support; 8-2. Sliding component; 8-3. Receiving groove. Detailed Implementation

[0028] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] like Figures 1 to 3 As shown, the present invention provides a single-sided slipform construction method for a steeply sloped roof structure, comprising the following steps.

[0031] Construction of the lower formwork of the steeply sloping concrete roof (7 sections, 2 sections).

[0032] Before constructing the lower formwork 2, erect a full-span scaffold 1, and then lay the lower formwork 2 on the erected full-span scaffold 1.

[0033] b. Tie the roof reinforcement bars on the lower formwork 2.

[0034] c. Multiple steel reinforcement supports 3 extending vertically along the sloping roof are arranged on the lower template 2. The steel reinforcement supports 3 are fixedly connected to the roof reinforcement. At the top of the steel reinforcement supports 3, steel bars parallel to the sloping roof are provided as slide rails 3-1.

[0035] Among them, such as Figure 4 As shown, the steel reinforcement support 3 specifically includes rectangular frames 3-2, connecting bars 3-3, and sliding rails 3-1. The rectangular frames 3-2, connecting bars 3-3, and sliding rails 3-1 are all made of steel reinforcement. There are several rectangular frames 3-2, evenly distributed along the slope of the concrete roof 7. The connecting bars 3-3 pass through all the rectangular frames 3-2 and connect to them, with their direction parallel to the slope of the roof. The sliding rails 3-1 are located at the center above the rectangular frames 3-2, connecting to all the rectangular frames 3-2, and their direction is also parallel to the slope of the roof. During the construction of the steel reinforcement support 3, the rectangular frames 3-2 and connecting bars 3-3 are tied and fixed together with the roof reinforcement.

[0036] The overall height of the steel reinforcement support 3 is lower than the surface height of the concrete roof 7. During the pouring process, the steel reinforcement support 3 is directly embedded in the concrete to form part of the concrete roof 7, and the poured concrete covers the slide rail 3-1 to prevent the steel reinforcement from being exposed.

[0037] The spacing and position of the steel reinforcement supports 3 are determined based on the position of the moving support structure 8 on the sliding formwork 4.

[0038] d. Connect multiple sliding templates 4 according to the width of the concrete roof 7. The bottom surface of the sliding template 4 is a plane. A support and moving structure 8 is set on the bottom surface of the sliding template 4. The support and moving structure 8 is used to move along the slide rail 3-1. The sliding template 4 is placed on the slide rail 3-1 and located at the lower end of the concrete roof 7. A vibrator is set on the sliding template 4.

[0039] The sliding formwork 4 includes two sizes: standard width and non-standard width. The number of standard width sliding formwork 4 is determined according to the width of the concrete roof 7 to be constructed. The remaining part is made up with non-standard width sliding formwork 4. Adjacent sliding formwork 4 are connected by bolts for easy installation and disassembly.

[0040] At least one set of supporting movable structures 8 is installed on each standard width sliding template 4. Each set of supporting movable structures 8 contains at least two supporting movable structures 8, and the multiple supporting movable structures 8 in a set are arranged along the slide rail 3-1. The supporting movable structures 8 enable the sliding template 4 to be supported and to move on the slide rail 3-1.

[0041] like Figure 4 As shown, the supporting movable structure 8 specifically includes a support 8-1 and a sliding member 8-2. The support 8-1 is fixedly installed on the bottom surface of the sliding template 4, and the sliding member 8-2 is fixedly installed on the support 8-1. A receiving groove 8-3 for matching and connecting with the slide rail 3-1 is provided at the lower part of the sliding member 8-2. The sliding member 8-2 can be a short section of channel steel or steel pipe structure, with its upper part welded to the support 8-1 and two side plates welded to its lower surface. The gap between the two side plates forms the receiving groove 8-3, and the guide rail can be just placed into the receiving groove 8-3. A sliding connection is formed between the sliding member 8-2 and the slide rail 3-1.

[0042] The height of the sliding member 8-2 is fixed. The height of the sliding template 4 is controlled by the height of the slide rail 3-1 on the steel support 3. After the sliding template 4 is placed on the slide rail 3-1, the bottom surface of the sliding template 4 is at the same height as the surface of the concrete roof 7.

[0043] The sliding template 4 is a hollow structure. After the sliding template 4 is installed, sand is filled into the sliding template 4 as needed to increase the weight of the sliding template 4, thereby preventing the sliding template 4 from floating during the movement. In addition, the sand filled inside can also be used in the construction of protective layers after the concrete roof 7 is completed.

[0044] Since the installation position of the sliding component 8-2 is a certain distance from the rear end of the sliding template 4, the concrete can automatically fill and compact the area where the sliding component 8-2 passes under the action of the self-flowing concrete and the vibration action of the sliding template 4.

[0045] Meanwhile, the sliding member 8-2 is specifically a channel steel or steel pipe, and the concrete can pass through its internal cavity, thereby reducing the defects caused by the disturbance of the concrete by the sliding member 8-2.

[0046] e. A traction mechanism 6 is fixedly installed at the upper end of the concrete roof 7, and a traction rope 5 is connected to the sliding template 4. The traction rope 5 is connected to the traction mechanism 6.

[0047] There are at least two traction mechanisms 6. When there are two traction mechanisms 6, it is easy to control their synchronous operation. The two traction mechanisms 6 are symmetrically arranged on the concrete roof 7, so that the traction force on the sliding formwork 4 is balanced from left to right.

[0048] When there are only two traction mechanisms 6, each traction mechanism 6 needs to provide a large traction force, so the traction mechanism 6 can specifically be a through-hole jack.

[0049] f. Pour the concrete roof 7 from bottom to top on the lower formwork 2. At the same time as pouring, start the traction mechanism 6 to drive the sliding formwork 4 to move upward gradually, and complete the pouring of the concrete roof 7.

[0050] During the movement of the sliding formwork 4, the vibrator is activated to compact the concrete, thereby ensuring the quality of the concrete pouring.

[0051] Control all traction mechanisms 6 to operate synchronously, and prevent the sliding template 4 from shifting.

[0052] g. Remove the traction mechanism 6 and the sliding template 4.

[0053] After the concrete roof 7 is poured, the traction mechanism 6 and the sliding formwork 4 are removed. The traction mechanism 6 and the sliding formwork 4 can be reused.

[0054] h. Perform finishing work on the formed concrete roof 7.

[0055] During the pouring process, the quality of the concrete roof 7 is inspected manually. For defective locations, workers can use the sliding formwork 4 as a platform to manually repair the defective locations.

[0056] After the concrete roof has set, the finishing work is carried out on the roof surface.

[0057] This invention uses a single-sided sliding formwork to construct an inclined concrete roof 7. The lower formwork 2 of the concrete roof 7 is erected in a traditional way, which is less expensive. During the pouring of the concrete roof 7, the upper surface is shaped and vibrated by the sliding formwork 4. The single-sided sliding formwork 4 can ensure the quality of the roof concrete construction with less formwork work, with only a slight increase in cost, while significantly reducing potential quality problems and lowering later maintenance costs.

[0058] The sliding formwork 4 is supported and guided by the slide rails 3-1 on the steel reinforcement bracket 3, which effectively ensures the thickness and flatness of the roof concrete. Meanwhile, the steel reinforcement bracket 3 is directly poured into the concrete roof 7, eliminating the need for its removal and ensuring unobstructed flow of concrete on both sides of the slide rail 3-1 and the passage of roof reinforcement. This results in a unified structure for the concrete roof 7 after pouring, preventing defects such as gaps. Furthermore, after the sliding formwork 4 moves and vibrates, the concrete automatically fills and compacts the area above the steel reinforcement bracket 3, preventing the steel reinforcement bracket 3 and slide rail 3-1 from being exposed.

[0059] The sliding template 4 has a modular structure, which can be reused repeatedly, reducing the cost of use.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A single-sided slipform construction method for a steeply sloped roof structure, characterized in that, Includes the following steps: a. Formwork for the lower part of a steeply sloping concrete roof; b. Tie the roof reinforcement bars to the lower formwork; c. Arrange multiple steel reinforcement supports extending vertically along the sloping roof on the lower formwork. The steel reinforcement supports are fixedly connected to the roof reinforcement. A steel bar parallel to the sloping roof is provided at the top of the steel reinforcement supports as a slide rail. The steel reinforcement supports include rectangular frames, connecting bars, and slide rails. The rectangular frames are evenly distributed along the sloping direction of the concrete roof. The connecting bars pass through all the rectangular frames and connect to all the rectangular frames. The slide rail is located in the middle above the rectangular frames and connects to all the rectangular frames. Tie the rectangular frames and connecting bars to the roof reinforcement together. d. Connect multiple sliding templates according to the width of the concrete roof. The bottom surface of the sliding template is a plane. A supporting moving structure is set on the bottom surface of the sliding template. The supporting moving structure is used to move along the slide rail. The sliding template is placed on the slide rail and located at the lower end of the concrete roof. A vibrator is set on the sliding template. At least one set of supporting movable structures is installed on the sliding template, and each set of supporting movable structures has at least two supporting movable structures. The multiple supporting movable structures in the set are arranged along the slide rail direction. The supporting movable structure includes a support and a sliding member. The support is fixedly installed on the bottom surface of the sliding template, and the sliding member is fixedly installed on the support. A receiving groove for matching and connecting with the slide rail is provided at the lower part of the sliding member. The height of the slide rail is lower than the height of the concrete roof surface. After the sliding template is placed on the slide rail, the bottom surface of the sliding template is at the same height as the concrete roof surface. e. A traction mechanism is fixedly installed at the upper end of the concrete roof, and a traction rope is connected to the sliding formwork. The traction rope is connected to the traction mechanism. f. Pour the concrete roof from bottom to top on the lower formwork. At the same time as pouring, start the traction mechanism to drive the sliding formwork to move upward gradually to complete the pouring of the concrete roof. g. Dismantle the traction mechanism and sliding formwork; h. Perform finishing work on the formed concrete roof.

2. The single-sided slipform construction method for a steep-slope roof structure according to claim 1, characterized in that, The sliding template has a hollow structure. After the sliding template is installed, sand is filled into the sliding template to increase its weight as needed.

3. The single-sided slipform construction method for a steep-slope roof structure according to claim 1, characterized in that, There are at least two traction mechanisms, which are through-hole jacks. In step f, all traction mechanisms are controlled to operate synchronously.

4. The single-sided slipform construction method for steep slope roof structures according to claim 1, characterized in that, A full-span scaffold is erected in front of the lower formwork, and the lower formwork is laid on the full-span scaffold.

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