Segmented steel reinforcement framework non-matching manufacturing method based on straight thread sleeve connection

Abstract

The application discloses a segmental steel reinforcement framework matching-free manufacturing method based on straight thread sleeve connection, which comprises the following steps: according to segmental division of a steel reinforcement framework, a first steel reinforcement positioning frame is placed at a corresponding height position on the top of a first segment of the steel reinforcement framework, and a slot hole corresponding to vertical steel reinforcement positioning is arranged in the first steel reinforcement positioning frame; a straight thread sleeve and a fixing device are arranged at a position corresponding to the slot hole; two sets of steel reinforcement positioning frames are arranged on an Nth segment of the steel reinforcement framework, and the steel reinforcement positioning frames are used in a circulating cross manner. The application solves the problems that the steel reinforcement framework connected by the straight thread sleeve cannot be matched and installed due to the different axes of the threads, the horizontal matching method occupies a large site, the vertical matching method needs to set up an operation frame at a high height, and the time for occupying the reference steel reinforcement framework is reduced.

Description

Technical Field

[0001] This invention relates to the field of engineering construction technology. More specifically, this invention relates to a method for fabricating a segmental steel reinforcement cage without matching based on a straight threaded sleeve connection. Background Technology

[0002] Currently, the horizontal matching method is mostly used for the fabrication of steel reinforcement cages for bridge piers and towers, while some use the long-line vertical matching method. Both methods use the previous steel reinforcement cage as the basis for the fabrication of the next steel reinforcement cage, and the remaining steel reinforcement cages are fabricated segment by segment. The horizontal matching method for fabricating steel reinforcement cages has the following disadvantages: (1) The horizontal matching method occupies a large area and has low adaptability to complex cross sections; (2) The long-line vertical matching method takes a long time for the lower steel reinforcement cage, resulting in low production efficiency and a large workload for disassembly, assembly, and hoisting of the steel reinforcement cage during the fabrication process; (3) When the steel reinforcement cage is connected on site, the straight thread spiral of the steel reinforcement at the connection point is discontinuous, causing installation difficulties; (4) The long-line vertical matching method requires a high operating frame with a large area, a large amount of materials, and high construction costs. At the same time, the high operating frame height results in high construction risks and low construction efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a method for manufacturing segmental rebar cages with mismatch based on straight threaded sleeve connections, which solves the problem of misaligned helical threads and inability to match rebar cages during installation, and reduces the time required for the reference rebar cage.

[0004] The technical solution adopted by this invention to solve this technical problem is: a method for fabricating a segmental rebar cage without matching based on a straight threaded sleeve connection, comprising:

[0005] According to the segment division of the steel reinforcement cage, the first set of steel reinforcement positioning frames is pre-placed at the corresponding height position at the top of the first steel reinforcement cage. The first set of steel reinforcement positioning frames is arranged with slots that correspond one-to-one with the positioning of the vertical steel reinforcement. Straight threaded sleeves and fixing devices are set at the corresponding positions of the slots.

[0006] Once the first section of the reinforcing steel cage is completed, the threaded sleeves on the first set of pre-placed reinforcing steel positioning frames are matched and installed one by one with the straight threads of the vertical reinforcing bars in the reinforcing steel cage. At this time, the information of the upper straight thread of the vertical reinforcing bars in the first section of the reinforcing steel cage is transmitted to the threaded sleeves on the first set of reinforcing steel positioning frames. The threaded sleeves are screwed out of the reinforcing steel cage and the position of the threaded sleeves is fixed by the fixing device. The first set of reinforcing steel positioning frames is then removed, and the first section of the reinforcing steel cage is completed.

[0007] Preferably, it also includes:

[0008] When removing the first section of the rebar cage and starting the fabrication of the Nth section of the rebar cage (N is a positive integer greater than 1), the first set of rebar positioning frames serves as the reference for fabricating the Nth section of the rebar cage. The lower end of the vertical rebar of the Nth section of the rebar cage is installed into the straight thread sleeve of the first set of rebar positioning frames. Simultaneously, the second set of rebar positioning frames is installed at the top of the Nth section of the rebar cage, and the straight thread sleeve on the second set of rebar positioning frames is screwed into the corresponding vertical rebar. The sleeve on the second set of rebar positioning frames has recorded the straight thread information at the upper end of the vertical rebar of the Nth section of the rebar cage. The straight thread sleeve on the second set of rebar positioning frames is screwed out of the rebar cage and its position is fixed by a fixing device. The second set of positioning frames is removed, and the fixing device at the lower end of the Nth section of the rebar cage is released. The Nth section of the rebar cage is now complete. The Nth section of the rebar cage is removed, and following the aforementioned method, the second set of rebar positioning frames is located at the lower end of the rebar cage as the reference for fabricating the N+1th section of the rebar cage. The N+1th section of the rebar cage is then fabricated. At this time, the first set of rebar positioning frames is located at the upper end of the rebar cage. The two sets of rebar positioning frames are used and placed alternately to complete the fabrication of the remaining rebar cage sections.

[0009] Preferably, the steel reinforcement cage includes vertical steel bars, horizontal steel bars, and tie bars.

[0010] Preferably, the straight thread at the upper end of the vertical reinforcing bar is a short thread, and the straight thread at the lower end of the vertical reinforcing bar is a long thread.

[0011] Preferably, the rebar positioning frame includes an upper chord, a web member, a lower chord, a positioning slot, and a fixing device;

[0012] The upper chord and the lower chord are connected by a web member. The positioning slots are located on the upper chord and the lower chord, and the positioning slots are arranged alternately and at intervals on the upper chord and the lower chord. The fixing device is detachably fixed above the positioning slots.

[0013] Preferably, the fixing device includes a separable sleeve that matches the outer diameter of the straight threaded sleeve. The straight threaded sleeve is fixed by the fixing device, and then the fixing device is fixed to the upper chord or the lower chord, thereby fixing the straight threaded sleeve.

[0014] The present invention has at least the following beneficial effects:

[0015] 1. The present invention proposes a method for fabricating segmental rebar cages without matching based on straight threaded sleeve connections. It adopts two sets of rebar positioning frames and single-segment rebar cage fabrication, which can significantly reduce the height of the operating frame and the height of the workers, improve safety, occupy less space in the fabrication site, and further reduce material and measure costs.

[0016] 2. The present invention proposes a method for fabricating segmental rebar cages without matching based on straight threaded sleeve connections, which reduces the time required for the reference rebar cage and improves production efficiency;

[0017] 3. The present invention proposes a method for fabricating a segmental steel reinforcement cage without matching based on a straight threaded sleeve connection, which uses a common straight threaded sleeve connection to reduce connection costs;

[0018] 4. The present invention proposes a method for manufacturing segmental rebar cages without matching based on straight thread sleeve connection. Combined with the rebar positioning frame, it can effectively control the screw-out distance of the sleeve on the positioning frame, ensuring that the sleeve is coaxial with the rebar cage after being screwed out, and ensuring effective transmission of connection information.

[0019] 5. The present invention proposes a method for fabricating segmental rebar cages without matching based on straight threaded sleeve connections. This method has low cost and a clear process, and can provide a new approach for the overall fabrication of segmental rebar cages based on straight threaded sleeve connections.

[0020] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the fabrication of the first section of the steel reinforcement frame of this invention;

[0022] Figure 2 This is a schematic diagram of the fabrication of the Nth segment of the steel reinforcement cage in this invention;

[0023] Figure 3 This is a schematic diagram of the use of the N+1 segment of the reinforcing bar cage in the fabrication of the reinforcing bar positioning frame of the present invention;

[0024] Figure 4 This is a schematic diagram of the elevation of the rebar positioning frame of the present invention;

[0025] Figure 5 yes Figure 4 Section 1-1;

[0026] Figure 6 yes Figure 4 Section 2-2;

[0027] Figure 7 This is a diagram showing the installation state of the upper end of the Nth vertical steel bar and the straight threaded sleeve in this invention;

[0028] Figure 8 This is a diagram showing the upper end of the Nth vertical steel bar of the present invention detached from the straight threaded sleeve, with the sleeve in a fixed state.

[0029] Figure 9 This is a diagram showing the installation state of the lower end of the vertical reinforcing bar in the Nth segment (excluding the first segment) of this invention with the straight threaded sleeve;

[0030] Figure 10 This is a diagram showing the state in which the lower end of the vertical reinforcing bar in the Nth segment (excluding the first segment) of this invention is disengaged from the straight threaded sleeve;

[0031] Figure 11 This is a schematic diagram of the vertical reinforcing bars of the present invention;

[0032] Figure 12a This is a schematic diagram of the installation of the first set of rebar positioning frames of the present invention;

[0033] Figure 12b This is a schematic diagram of the installation of vertical and horizontal reinforcing bars and tie bars according to the present invention;

[0034] Figure 12c This is a schematic diagram of the installation of the straight threaded sleeve according to the present invention;

[0035] Figure 12d This is a schematic diagram of the installation of the fixing device of the present invention;

[0036] Figure 12e This is a schematic diagram of the present invention showing the distance at which the straight threaded sleeve is unscrewed from the end of the vertical reinforcing bar and the straight threaded sleeve is fixed.

[0037] Figure 12f This is a schematic diagram of the present invention, showing the removal of the rebar positioning frame and the first section of the rebar skeleton.

[0038] Figure 12g This is a schematic diagram of the installation of the second rebar positioning frame of the present invention;

[0039] Figure 12h This is a schematic diagram of the installation of the Nth horizontal and vertical steel bars and tie bars according to the present invention;

[0040] Figure 12i This is a schematic diagram of the installation of the upper straight threaded sleeve of the Nth segment of the present invention;

[0041] Figure 12j This is a schematic diagram of the installation of the upper fixing device of the Nth segment of the present invention;

[0042] Figure 12k This is a schematic diagram showing the distance at which the upper straight threaded sleeve of the Nth segment of the present invention is separated from the end of the vertical reinforcing bar;

[0043] Figure 13l This is a schematic diagram of the upper rebar positioning frame of the present invention;

[0044] Figure 13m This is a schematic diagram of the present invention for releasing the lower rebar positioning frame sleeve fixation;

[0045] Figure 13n This is a schematic diagram of the present invention showing the removal of the Nth segment of the steel reinforcement cage;

[0046] Figure 13o This invention relates to the positioning frame for installing the N+1th section of reinforcing bars.

[0047] Explanation of reference numerals in the attached drawings: 1 First set of rebar positioning frame, 2 Horizontal rebar, 3 Straight threaded sleeve, 4 Vertical rebar, 5 Second set of rebar positioning frame, 6 Upper chord, 7 Lower chord, 8 Fixing device, 9 Web rod, 10 Positioning slot, 11 Short wire, 12 Long wire. Detailed Implementation

[0048] The present invention will now be described in detail and completely with reference to the accompanying drawings. Those skilled in the art will be able to implement the present invention based on these descriptions. Before describing the present invention with reference to the accompanying drawings, it should be particularly noted that the technical solutions and features provided in various parts of the present invention, including the following description, can be combined with each other without conflict.

[0049] Furthermore, the embodiments of the present invention described below are generally only some, not all, of the embodiments of the present invention. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0050] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The specific implementation process is as follows:

[0051] like Figures 1-11 As shown, the present invention provides a method for fabricating a segmental rebar cage without matching based on a straight threaded sleeve 3 connection, comprising:

[0052] According to the segment division of the steel reinforcement cage, the first set of steel reinforcement positioning frame 1 is pre-placed at the corresponding height position at the top of the first steel reinforcement cage. The first set of steel reinforcement positioning frame 1 is arranged with slots that correspond one-to-one with the positioning of the vertical steel reinforcement 4. Straight threaded sleeves 3 and fixing devices 8 are set at the corresponding positions of the slots.

[0053] Once the first section of the reinforcing steel cage is completed, the straight threaded sleeves 3 on the first set of reinforcing steel positioning frames 1 are matched and installed one by one with the straight threads of the vertical reinforcing bars 4 in the reinforcing steel cage. At this time, the straight thread information at the upper end of the vertical reinforcing bars 4 in the first section of the reinforcing steel cage is transmitted to the straight threaded sleeves 3 on the first set of reinforcing steel positioning frames 1. The straight threaded sleeves 3 are screwed out of the reinforcing steel cage and the position of the straight threaded sleeves 3 is fixed by the fixing device 8. The first set of reinforcing steel positioning frames 1 is then removed, and the first section of the reinforcing steel cage is completed.

[0054] This technical solution may also include the following technical details to better achieve the technical effect: It also includes:

[0055] When removing the first section of the reinforcing steel cage and fabricating the Nth section (excluding the first section), where N is a positive integer greater than 1, the first set of reinforcing steel positioning frames 1 serves as the reference for fabricating the Nth section (excluding the first section). The lower ends of the vertical reinforcing bars 4 in the Nth section (excluding the first section) are installed into the straight threaded sleeves 3 of the first set of reinforcing steel positioning frames 1. Simultaneously, a second set of reinforcing steel positioning frames 5 is installed at the top of the Nth section (excluding the first section), and the straight threaded sleeves 3 on the second set of reinforcing steel positioning frames 5 are screwed into the corresponding vertical reinforcing bars 4. The sleeves on the second set of reinforcing steel positioning frames 5 have recorded the straight thread information of the upper ends of the vertical reinforcing bars 4 in the Nth section (excluding the first section). The connection information includes the position of the reinforcing steel cage, the reinforcing steel... Position the vertical reinforcing bar 4 at the straight thread cutting point, unscrew the straight thread sleeve 3 on the second set of reinforcing bar positioning frame 5 out of the reinforcing bar skeleton and fix the position of the straight thread sleeve 3 through the fixing device 8, remove the second set of positioning frame, release the fixing device 8 at the lower end of the Nth segment (excluding the first segment) of the reinforcing bar skeleton, and the Nth segment (excluding the first segment) of the reinforcing bar skeleton is completed. Remove the Nth segment (excluding the first segment) of the reinforcing bar skeleton, and according to the aforementioned method, the second set of reinforcing bar positioning frame 5 is located at the lower end of the reinforcing bar skeleton as the reference for the N+1th segment of the reinforcing bar skeleton, and make the N+1th segment of the reinforcing bar skeleton. At this time, the first set of reinforcing bar positioning frame 1 is located at the upper end of the reinforcing bar skeleton. The two sets of reinforcing bar positioning frames are used and placed alternately to complete the making of the remaining segments of the reinforcing bar skeleton in sequence.

[0056] This technical solution may also include the following technical details to better achieve the technical effect: the steel reinforcement cage includes vertical steel bars 4, horizontal steel bars 2 and tie bars.

[0057] This technical solution may also include the following technical details to better achieve the technical effect: the straight thread at the upper end of the vertical steel bar 4 is a short thread 11, and the straight thread at the lower end of the vertical steel bar 4 is a long thread 12.

[0058] This technical solution may also include the following technical details to better achieve the technical effect: the rebar positioning frame includes an upper chord 6, a web member 9, a lower chord 7, a positioning slot 10, and a fixing device 8;

[0059] The upper chord 6 and lower chord 7 are connected by a web member 9. Positioning slots 10 are located on both the upper chord 6 and lower chord 7, and are arranged alternately and at intervals on both chords. The fixing device 8 is detachably fixed above the positioning slots 10. Preferably, the diameter of the positioning slots 10 is larger than the outer diameter of the straight thread sleeve 3. The model of the rebar positioning frame member is determined by calculation to ensure the stress requirements during the installation of the rebar cage. The height of the rebar positioning frame is the same as the length of the rebar connection section.

[0060] This technical solution may also include the following technical details to better achieve the technical effect: the fixing device 8 includes a separable sleeve that matches the outer diameter of the straight thread sleeve 3, such as a clamp structure. The straight thread sleeve 3 is fixed by the fixing device 8, and then the fixing device 8 is fixed to the upper chord 6 or the lower chord 7, thereby fixing the straight thread sleeve 3.

[0061] Example 1

[0062] A method for fabricating a segmental rebar cage without matching based on a straight threaded sleeve 3 connection, the specific process is as follows:

[0063] S1: Based on the height of the first section of the steel reinforcement cage, pre-install the first set of steel reinforcement positioning frames 1 at the corresponding positions. Figure 12a );

[0064] S2: Install the first section of the steel reinforcement cage, including 4 vertical bars, 2 horizontal bars, and tie bars. Figure 12b );

[0065] S3: Install the straight threaded sleeve 3 on the rebar positioning frame to the upper end of the vertical rebar 4 of the first section of the rebar cage ( Figure 12c );

[0066] S4: Install the fixing device 8 to the corresponding position of the straight threaded sleeve 3 in S3. Figure 12d );

[0067] S5: Unscrew the straight threaded sleeve 3 from the sleeve fixing device 8 in S3, disengaging it from the reinforcing bar cage by a certain distance. Figure 12e );

[0068] S6: Sequentially remove the rebar positioning frame and the first section of the rebar cage. Figure 12f );

[0069] S7: Install the rebar positioning frame removed in S6, and install the second set of rebar positioning frames 5. Figure 12g );

[0070] S8: Install the vertical reinforcing bars 4 of the Nth segment (excluding the first segment) into the straight threaded sleeve 3 of the S7 reinforcing bar positioning frame in sequence, and install the horizontal reinforcing bars 2 and tie bars. Figure 12h );

[0071] S9: Screw the upper sleeve of the second set of rebar positioning bracket 5 into the corresponding rebars one by one. Figure 12i );

[0072] S10: Install the sleeve fixing device 8 to the corresponding position of the straight thread sleeve 3 in S9. Figure 12j );

[0073] S11: Unscrew the straight threaded sleeve 3 from the sleeve fixing device 8 in S10, disengaging it from the reinforcing bar cage by a certain distance. Figure 12k);

[0074] S12: Remove the second set of rebar positioning frames 5 ( Figure 13l ), and move it to the next section of the steel reinforcement cage support position;

[0075] S13: Release the lower end sleeve fixing of the Nth segment (excluding the first segment) of the reinforcing steel cage. Figure 13m );

[0076] S14: Remove the Nth segment (excluding the first segment) of the rebar cage, and remove the first set of rebar positioning frames 1. Figure 13n );

[0077] S15: Install the rebar positioning frame removed in S12 / S14 ( Figure 13o );

[0078] S16: Repeat S8 to S14 to complete the fabrication of the remaining steel reinforcement.

[0079] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and embodiments shown and described herein.

Claims

1. A method for fabricating a segmental rebar cage without matching based on a straight threaded sleeve connection, characterized in that, include: According to the segment division of the steel reinforcement cage, the first set of steel reinforcement positioning frames is pre-placed at the corresponding height position at the top of the first steel reinforcement cage. The first set of steel reinforcement positioning frames is arranged with slots that correspond one-to-one with the positioning of the vertical steel reinforcement. Straight threaded sleeves and fixing devices are set at the corresponding positions of the slots. Once the first section of the reinforcing steel cage is completed, the threaded sleeves on the first set of pre-placed reinforcing steel positioning frames are matched and installed one by one with the straight threads of the vertical reinforcing bars in the reinforcing steel cage. At this time, the straight thread information at the upper end of the vertical reinforcing bars in the first section of the reinforcing steel cage is transmitted to the threaded sleeves on the first set of reinforcing steel positioning frames. The threaded sleeves are then unscrewed from the reinforcing steel cage and their positions are fixed by the fixing device. The first set of reinforcing steel positioning frames is then removed, and the first section of the reinforcing steel cage is completed. When removing the first section of the rebar cage and starting the fabrication of the Nth section of the rebar cage (N is a positive integer greater than 1), the first set of rebar positioning frames serves as the reference for fabricating the Nth section of the rebar cage. The lower end of the vertical rebar of the Nth section of the rebar cage is installed into the straight thread sleeve of the first set of rebar positioning frames. Simultaneously, the second set of rebar positioning frames is installed at the top of the Nth section of the rebar cage, and the straight thread sleeve on the second set of rebar positioning frames is screwed into the corresponding vertical rebar. The sleeve on the second set of rebar positioning frames has recorded the straight thread information at the upper end of the vertical rebar of the Nth section of the rebar cage. The straight thread sleeve on the second set of rebar positioning frames is screwed out of the rebar cage and its position is fixed by a fixing device. The second set of positioning frames is removed, and the fixing device at the lower end of the Nth section of the rebar cage is released. The Nth section of the rebar cage is now complete. The Nth section of the rebar cage is removed, and following the aforementioned method, the second set of rebar positioning frames is located at the lower end of the rebar cage as the reference for fabricating the N+1th section of the rebar cage. The N+1th section of the rebar cage is then fabricated. At this time, the first set of rebar positioning frames is located at the upper end of the rebar cage. The two sets of rebar positioning frames are used and placed alternately to complete the fabrication of the remaining rebar cage sections.

2. The method for fabricating a segmental rebar cage without matching based on a straight threaded sleeve connection as described in claim 1, characterized in that, The steel reinforcement cage includes vertical steel bars, horizontal steel bars, and tie bars.

3. The method for fabricating a segmental rebar cage without matching based on a straight threaded sleeve connection as described in claim 1, characterized in that, The straight thread at the upper end of the vertical reinforcing bar is a short thread, and the straight thread at the lower end of the vertical reinforcing bar is a long thread.

4. The method for fabricating a segmental rebar cage without matching based on a straight threaded sleeve connection as described in claim 1, characterized in that, The rebar positioning frame includes an upper chord, a web member, a lower chord, a positioning slot, and a fixing device; The upper chord and the lower chord are connected by a web member. The positioning slots are located on the upper chord and the lower chord, and the positioning slots are arranged alternately and at intervals on the upper chord and the lower chord. The fixing device is detachably fixed above the positioning slots.

5. The method for fabricating a segmental rebar cage without matching based on a straight threaded sleeve connection as described in claim 4, characterized in that, The fixing device includes a separable sleeve that matches the outer diameter of the straight threaded sleeve. The straight threaded sleeve is fixed by the fixing device, and then the fixing device is fixed to the upper chord or the lower chord, thereby fixing the straight threaded sleeve.

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