Construction technology for reinforcing large-span roof slab

Abstract

The application relates to a large-span roof slab reinforcing construction process and relates to the field of large-span shell repairing, and comprises the following steps: S1, installing a plurality of column feet, and installing platforms on the top of the column feet to form a plurality of platforms with different heights; S2, performing point positioning on the base and the center of the sticking plate, and the base needs to fall in the center of the main beam or the secondary beam of the vault; S3, installing the sticking plate at the sticking plate center at the bottom of the vault; S4, transporting the supporting rod to a mounting position for pre-installation, installing the supporting rod in the outer sleeve on the top of the base, then installing the jacking mechanism between the base and the supporting rod, and connecting the sticking plate and the supporting rod; S5, jacking is divided into several times, and the jacking sequence of the platform is determined according to the height of the platform, the first jacking is performed on the platform with a higher height, the second jacking is performed on the platform with a medium height, and the last jacking is performed on the platform with a lower height, and each jacking is divided into several stages. The application can accurately control the jacking force of the vault.

Description

Technical Field

[0001] This application relates to the field of large-span shell repair, and in particular to the construction technology for reinforcing large-span roof slabs. Background Technology

[0002] Cultural relics protection units are a general term in China for immovable cultural relics that have been identified and included in the protection list, and refer to the areas where the cultural relics protection units themselves and their surrounding areas are subject to key protection. Cultural relics protection units are units established at the sites of ancient cultural sites, tombs, buildings, grottoes, and stone carvings that possess historical, artistic, and scientific value, and are used for cultural relics protection work.

[0003] Due to the long period of time some ancient buildings have existed, they have suffered damage and require restoration. Some of these buildings have roofs on top, and these roofs have reached the end of their safe service life and are at risk of collapse. Therefore, it is necessary to lift these roofs before restoration. Existing technologies include structures for lifting the planar roofs of the building's main structure.

[0004] Regarding the aforementioned technologies, the inventors believe that since the main structure of some buildings has a large-span reinforced concrete thin-shell arch, the arch structure has a special shape that makes its external stress better than its internal stress. When lifting the inside of the arch, it is easy to break through it. Therefore, the control of force needs to be very precise. However, the planar lifting structure cannot accurately control the lifting force, which makes it easy to break through the arch when lifting it. Summary of the Invention

[0005] To facilitate the control of the lifting force during the arch jacking, this application provides a construction process for reinforcing large-span roof slabs.

[0006] This application provides a construction process for reinforcing large-span roof slabs, employing the following technical solution:

[0007] The construction process for reinforcing large-span roof slabs includes the following steps:

[0008] S1: Install several column bases of different heights on the building surface below the vault. The height of the column bases increases along the center of the vault. Install platforms on the top of the column bases to form several platforms of different heights. Make a layout drawing of the base points on the platforms.

[0009] S2: According to the base layout drawing, locate the center of the base and the adhesive plate. The base must be placed at the center of the main beam or secondary beam of the arch.

[0010] S3: Install the adhesive plate at the center of the adhesive plate at the bottom of the arch;

[0011] S4: Transport the strut to the installation position for pre-installation, so that the strut is installed inside the outer sleeve at the top of the base, then install the lifting mechanism between the base and the strut, and connect the adhesive plate to the strut;

[0012] S5: Depending on the platform height, the lifting is divided into several stages. The order of lifting the platforms is determined by the height of the platforms. The higher platforms are lifted first, followed by the medium-height platforms, and finally the lower platforms. Each lifting is divided into several stages, and the lifting distance of each stage is the same. Each stage needs to be lifted simultaneously. After each stage of lifting is completed, the next stage of lifting will begin.

[0013] By adopting the above technical solution, because the curvature of the arch at the top of the higher platform tends to be gentler, the range of lifting force that it can withstand is larger. When the platform of medium height is subsequently lifted and adjusted, the change in lifting provided by the higher platform is not so large compared with the range of lifting force that it can withstand, and it is not easy to exceed the range of lifting force that the platform can withstand. Therefore, this solution can accurately control the lifting force and is less likely to break the arch during lifting.

[0014] Optionally, in S2, after determining the center points of the base and the adhesive plate, mark the center point of the base and number it according to the drawing, mark the center of the adhesive plate on the arch, and draw a circle with the mark as the center. At the same time as marking the points, measure the vertical distance between the center point of the base and the center point of the adhesive plate, and register it together with the base number.

[0015] By adopting the above technical solution, the center positions of the base and the adhesive plate can be aligned, which facilitates the subsequent installation of the support rod. Marking the center point makes it easier to process the center of the adhesive plate. Measuring the vertical distance between the center point of the base and the center point of the adhesive plate facilitates the preparation of the support rod.

[0016] Optionally, S3 includes the following steps:

[0017] S3.1: Use tools manually to clean the mortar layer inside the marked circle;

[0018] S3.2: Use a grinding disc to clean the concrete surface in the area where the mortar layer has been removed, and wipe it clean.

[0019] S3.3: Using a custom-made adhesive board template, with the original marked base center as the main reference, locate the adhesive board center and the twisting direction, then mark them, and ensure that the twisting direction is perpendicular to the center of the arch.

[0020] S3.4: The four temporary fixing ears of the adhesive board are temporarily fixed to the bottom of the arch with adhesive. After the adhesive has hardened, the temporary fixing is removed, and then the adhesive board is pasted to the center of the adhesive board at the bottom of the arch.

[0021] By adopting the above technical solution, the concrete structure of the dome has reached the end of its service life. In order to avoid damage to the dome structure by the vibration of power tools, this construction stage can only be completed manually; the setting of temporary fixing ears facilitates the temporary fixing of the adhesive plate.

[0022] Optionally, in S5, the specific lifting steps are as follows: After the upper adhesive plate is fully in contact with and fixed to the arch, the height of the bottom end of the spring is adjusted by the positioning component, and the spring is compressed. The upper end of the spring remains stationary because it is connected to the support rod. When the spring is compressed to the predetermined length, the magnitude of the lifting force can be determined by observing the distance the lower end of the spring moves upward.

[0023] By adopting the above technical solution, the height of the bottom end of the spring can be adjusted, and the distance the bottom end of the spring moves upward can be observed to determine the magnitude of the lifting force, so as to accurately control the magnitude of the lifting force.

[0024] Optionally, in S1, before installing the column base, a lower-level support structure is installed on the building surface below the arch, near the wall, and a wall-mounted support structure is installed on the building surface below the arch, near the wall, with the wall-mounted support structure positioned directly above the lower-level support structure. When installing the platform, the bottom of the platform is connected to the top of the wall-mounted support structure.

[0025] By adopting the above technical solution, the platform can transfer part of the load to the wall-mounted rods, and then to the bottom beams and lower support structure through the wall-mounted rods, thereby improving the overall stability and load-bearing capacity of the platform.

[0026] Optionally, in S1, after the lower support structure is installed, first reinforcing diagonal braces are installed on both sides of the lower support structure, and second reinforcing diagonal braces are installed at both ends of the lower support structure.

[0027] By adopting the above technical solutions, the first and second reinforcing diagonal braces can further improve the stability of the lower support structure.

[0028] Optionally, in S1, before installing the wall-mounted support structure, ear plates are installed on the wall according to the installation position of the lower support structure, and then the ear plates and the wall-mounted support structure are connected.

[0029] By adopting the above technical solution, the ear plate can connect the wall surface and the wall-mounted support structure to improve the stability of the wall-mounted support structure.

[0030] Optionally, in S1, when installing the lower support structure, ensure that the top of the lower support structure is used to support the beams on the top surface of the floor below the arch, and determine the position of the wall-mounted support structure accordingly.

[0031] By adopting the above technical solutions, the load borne by the wall-mounted support structure can be transferred to the more stable beam, thereby increasing the load that the wall-mounted support structure can withstand.

[0032] Optionally, in S4, the support rods are cut according to the measurement data of each base number during positioning. For heights below 2.5 meters, use φ60*4 pipes, and for heights above 2.5 meters, use φ83*4 pipes.

[0033] By adopting the above technical solution, when the distance between the center of the base and the center of the adhesive plate is far, using a support rod with a larger diameter can improve the stability of the support.

[0034] Optionally, in S3.4, the adhesive is AB glue and nano glue.

[0035] By adopting the above technical solutions, AB glue and nano glue can temporarily fix the adhesive board, and also have the effect of easy disassembly.

[0036] In summary, this application includes at least one of the following beneficial technical effects:

[0037] 1. The curvature of the arch at the top of a platform with a higher height tends to be gentler, and the range of lifting force it can withstand is larger. When adjusting the lifting of a platform with a medium height in the future, the change in lifting provided by the higher platform is not as large as the range of lifting force it can withstand, and it is not easy to exceed the range of lifting force that the platform can withstand.

[0038] 2. The height of the bottom end of the spring can be adjusted, and the distance the bottom end of the spring moves upward can be observed to determine the magnitude of the lifting force, so as to accurately control the magnitude of the lifting force;

[0039] 3. The platform can transfer part of the load it receives to the wall-mounted rods, and then to the bottom beams and lower support structure through the wall-mounted rods, thereby improving the overall stability and load-bearing capacity of the platform. Attached Figure Description

[0040] Figure 1 This is an overall schematic diagram of this application;

[0041] Figure 2 This is a schematic diagram of the column base and platform of this application;

[0042] Figure 3 This is a side sectional view of the lower support structure and the wall-mounted support structure of this application;

[0043] Figure 4This is a front sectional view of the lower support structure and the wall-attached support structure of this application;

[0044] Figure 5 This application Figure 3 Enlarged view of part A in the middle;

[0045] Figure 6 This application Figure 3 Enlarged view of part B in the middle section;

[0046] Figure 7 This is a schematic diagram of the lifting mechanism and struts of this application;

[0047] Figure 8 This is a schematic diagram of the lifting mechanism of this application.

[0048] Explanation of reference numerals in the attached drawings: 1. Arch; 2. Support base; 3. Support vertical rod; 4. Support horizontal rod; 5. Support longitudinal rod; 6. Support seat; 7. First reinforcing diagonal rod; 8. Second reinforcing diagonal rod; 9. Embedded plate; 10. Ear plate; 11. Wall-mounted bolt; 12. Wall-mounted nut; 13. I-beam; 14. Wall-mounted rod; 15. Column base; 16. Platform; 17. Adhesive plate; 18. Base; 19. Outer sleeve; 20. Hinge seat; 21. Anti-slip pad; 22. Positioning component; 23. Spring; 24. Connecting plate; 25. Positioning bolt; 26. Limiting rod; 27. Positioning nut; 28. Lower nut; 29. ​​Upper nut; 30. Limiting groove; 31. Scale line; 32. Sliding block; 33. Support rod; 34. Custom bolt; 35. Custom nut. Detailed Implementation

[0049] The following is in conjunction with the appendix Figures 1 to 8 This application will be described in further detail.

[0050] This application discloses a construction process for reinforcing large-span roof slabs. (Refer to...) Figure 1 and Figure 2 The construction process for reinforcing large-span roof slabs includes the following steps:

[0051] S1: Preliminary investigation and research of the building to be restored revealed that Vault 1 posed a significant safety hazard. Therefore, emergency reinforcement of Vault 1 was initiated first, followed by comprehensive restoration to maintain the structural safety of the cultural relic. Considering the considerable height of Vault 1, temporary high-support steel structures were used for the emergency reinforcement. This temporary reinforcement measure, implemented in the early stages of the restoration project to address the structural risks of Vault 1, also provides a necessary working surface for further investigation and construction. During the construction and use of the temporary high-support structure, while ensuring its structural safety and stability, reversible and flexible contact methods should be used at points of contact with the surface of the cultural relic to avoid damage to the relic itself.

[0052] Reference Figure 3 and Figure 4 The lower-level support structure is installed on the building surface below the arch 1, near the wall. It should be noted that the lower-level support structure includes a support base frame 2, support vertical rods 3, support horizontal rods 4, and support longitudinal rods 5. Before installing the lower-level support structure, the location is determined based on preliminary surveys to ensure that the top of the lower-level support structure supports the horizontal beams on the roof surface of the floor below the arch 1. The specific installation process of the lower-level support structure is as follows: The support base frame 2 is installed on the building surface below the arch 1, near the wall, ensuring that the support base frame 2 is directly below the horizontal beams on the roof surface of the floor below the arch 1. Several support vertical rods 3 are welded to the top of the support base frame 2. Then, several support horizontal rods 4 and support longitudinal rods 5 are connected to the support vertical rods 3 through first connectors. A support seat 6 is installed on the top of the support vertical rods 3, so that the top of the support seat 6 supports the horizontal beams and the surrounding roof slab.

[0053] After the lower support structure is installed, first reinforcing diagonal braces 7 are installed on both sides of the lower support structure, and second reinforcing diagonal braces 8 are installed at both ends of the lower support structure. The first reinforcing diagonal braces 7 are connected to the support crossbar 4 through the first connector, and the second reinforcing diagonal braces 8 are connected to the support longitudinal bar 5 through the first connector. It should be noted that the first connector can be wire, rope, or clamp.

[0054] Reference Figure 5 and Figure 6 Based on the installation location of the lower support structure, embedded plates 9 and ear plates 10 are installed on the wall at the bottom of the arch 1. First, the wall attachment nodes are determined, and then wall attachment bolts 11 are pre-embedded at the corresponding positions on the wall. The embedded plate 9 is then installed in the corresponding position, with one end of the wall attachment bolt 11 passing through the embedded plate 9. A wall attachment nut 12 is threaded onto the wall attachment bolt 11 to connect the embedded plate 9 to the wall. The two ear plates 10 are welded to the same side of the embedded plate 9. A wall-attached support structure is installed on the building surface below the arch 1, near the wall edge. The lower support structure and the wall-attached support structure are separated by one floor, with the wall-attached support structure located directly above the lower support structure. The wall-mounted support structure includes an I-beam 13 and a wall-mounted rod 14. The specific installation process of the wall-mounted support structure is as follows: Determine the installation position of the I-beam 13 according to the position of the support base 6 and the ear plate 10, so that the I-beam 13 is located directly above the support base 6, and weld the wall-mounted rod 14 to the top of the I-beam 13. Then, weld the ear plate 10 and the wall-mounted rod 14.

[0055] Reference Figure 2 and Figure 3Several column bases 15 of varying heights are installed on the building surface below the vault 1. The height of the column bases 15 increases along the center direction of the vault 1. Platforms 16 are installed on top of the column bases 15, forming several platforms 16 of varying heights. A layout drawing of the bases 18 on the platforms 16 is also prepared. It should be noted that when installing the platforms 16, the bottom of the platform 16 and the top of the wall-mounted rods 14 are connected by bolts. This allows the platform 16 to transfer part of its load to the wall-mounted rods 14, and then to the bottom beams and lower support structure through the wall-mounted rods 14, thereby improving the overall stability and load-bearing capacity of the platform 16.

[0056] S2: Based on the layout drawing of base 18, use infrared light to locate the centers of base 18 and adhesive plate 17. Base 18 must fall on the center of the main beam or secondary beam of arch 1. After locating the centers of base 18 and adhesive plate 17, mark the center point of base 18 and number it according to the drawing. Mark the center of adhesive plate 17 on arch 1, and draw a circle with a diameter of 20cm with the mark as the center. At the same time as marking the points, use an infrared rangefinder to measure the vertical distance between the center point of base 18 and the center point of adhesive plate 17, and register it together with the number of base 18.

[0057] S3: Install the adhesive plate 17 at the center of the adhesive plate 17 at the bottom of the vault 1. This step consists of four stages:

[0058] S3.1: The mortar layer within the marked circle will be manually cleaned using a pointed shovel, exposing the concrete surface. During the cleaning process, enhanced monitoring will be implemented, and effective measures will be taken to ensure construction safety while maintaining a steady pace. It should be noted that because the concrete structure of dome 1 has reached its service life, this stage of construction must be completed manually to avoid damage to the dome structure from the vibration of power tools.

[0059] S3.2: Use a grinding disc to clean the concrete surface where the mortar layer has been removed, and wipe it clean with acetone. Note that water should not be used. In this embodiment, a wire grinding disc is used.

[0060] S3.3: Using the custom-made adhesive board 17 template, with the original marked center of the base 18 as the main reference, use infrared light to locate the center of the adhesive board 17 and the twisting direction, then mark it, and ensure that the twisting direction is perpendicular to the center of the arch 1.

[0061] S3.4: The four temporary fixing ears of the adhesive plate 17 are temporarily fixed to the bottom of the arch 1 with adhesive. After the adhesive has solidified, the temporary fixing is removed, and then the adhesive plate 17 is pasted to the center of the adhesive plate 17 at the bottom of the arch 1 using steel adhesive. In this embodiment, to ensure a firm bond, the steel adhesive used is Fischer brand imported from Germany. In this embodiment, the adhesive is AB glue and nano glue, which can temporarily fix the adhesive plate 17 and also facilitate disassembly. It should be noted that after the adhesive plate 17 is installed, it is necessary to wait 24 hours before proceeding with subsequent steps to ensure the firmness of the adhesive plate 17.

[0062] S4: Reference Figure 7 and Figure 8 Based on the measurement data of each base 18 numbered during positioning, the support rods 33 are cut. For heights under 2.5 meters, φ60*4 pipes are used; for heights over 2.5 meters, φ83*4 pipes are used. The support rods 33 are hoisted to the installation position for pre-installation, placing them inside the outer sleeve 19 on top of the base 18. Then, the lifting mechanism is installed between the base 18 and the support rods 33, and the adhesive plate 17 is connected to the support rods 33. The top of the support rod 33 is hollow, and a custom screw 34 is slidably connected to its top. A custom nut 35 is rotatably connected to the top of the support rod 33, with the custom nut 35 threaded onto the outside of the custom screw 34. A hinge seat 20 is bolted to the top of the custom screw 34, and an anti-slip pad 21 is fixed to the top of the hinge seat 20. The adhesive plate 17 is fixed to the top of the anti-slip pad 21. When the distance between the centers of the base 18 and the adhesive plate 17 is large, a support rod 33 with a larger diameter is used to improve the stability of the support.

[0063] By rotating the custom nut 35, the height of the custom screw 34 within the support rod 33 can be adjusted, thereby adjusting the height of the adhesive plate 17. In addition, the custom screw 34 is hinged to the hinge seat 20, which allows for easy adjustment of the angle of the adhesive plate 17, making it easy for the adhesive plate 17 to be adapted to the connection of the arch 1 at different positions.

[0064] It should be noted that an outer sleeve 19 is welded to the top of the base 18. The lifting mechanism includes a positioning component 22 and a spring 23. The positioning component 22 is installed between the base 18 and the outer sleeve 19. The spring 23 is installed on the positioning component 22. The positioning component 22 is used to adjust the bottom height of the spring 23. The top of the spring 23 is connected to the bottom of the support rod 33.

[0065] S5: According to model calculations, the jacking process is divided into three phases: the first phase involves the simultaneous jacking of the 19.2-meter and 18.4-meter platforms; the second phase involves the simultaneous jacking of the 15.6-meter and 12.6-meter platforms; and the third phase involves the jacking of the 9.8-meter platform. Each jacking phase consists of three stages, each 20mm in length. Each stage must be performed simultaneously and synchronously. After all supports have completed their 20mm jacking, the next 20mm jacking stage will begin. It should be noted that the jacking distance for each stage can be adjusted adaptively according to the actual situation.

[0066] It should be noted that the positioning assembly 22 includes a connecting plate 24, multiple positioning screws 25, a limiting rod 26, and a positioning nut 27. The connecting plate 24 is horizontally fixed to the outside of the outer sleeve 19. The multiple positioning screws 25 are installed between the base 18 and the connecting plate 24. In this embodiment, there are four positioning screws 25. A lower nut 28 is threaded to the outside of the positioning screw 25 and inside the base 18, and an upper nut 29 is threaded to the outside of the positioning screw 25 and at the top of the connecting plate 24 to realize the installation of the positioning screws 25. The four positioning screws 25 are arranged circumferentially around the outer sleeve 19. A limiting groove 30 is provided on the outer side, which is connected to the inside of the outer sleeve 19. A limiting rod 26 is slidably connected in the limiting groove 30, with part of the limiting rod 26 located inside the outer sleeve 19 and part located outside the outer sleeve 19. A scale line 31 is provided on the outer side of the outer sleeve 19 corresponding to the position of the limiting groove 30. A positioning nut 27 is threadedly connected to the outer side of the positioning screw 25, and a sliding block 32 is slidably sleeved on the outer side of two adjacent positioning screws 25. In this embodiment, there are a total of two sliding blocks 32, and the two sliding blocks 32 are aligned and located between the limiting rod 26 and the positioning nut 27.

[0067] The lifting mechanism uses two different types of springs 23, both with a stroke of 80mm. Spring 23 Specification 1: 59mm mean diameter, 11mm diameter, 12 coils, stiffness 60N / mm, total stroke 80mm, compression height 143mm, free height 223mm. Spring 23 Specification 2: 64mm mean diameter, 15mm diameter, 16 coils, stiffness 120N / mm, total stroke 80mm, compression height 205mm, free height 285mm. It should be noted that the specifications of the springs 23 can be adjusted according to specific circumstances.

[0068] Reference Figure 7 and Figure 8The specific lifting steps are as follows: In the initial state, spring 23 is in a free state, only subjected to the gravity of the upper support rod 33, which causes spring 23 to be compressed to a certain extent. After the upper adhesive plate 17 is fully in contact and fixed with the arch 1, the upper end of spring 23 remains stationary due to its connection with the support rod 33. By turning the four positioning nuts 27 upward, a jack can be used for assistance, thereby causing the limiting rod 26 to move upward through the sliding block 32 to compress spring 23. The limiting rod 26 can move within the limiting groove 30. At the same time, since the scale line 31 is located on one side of the limiting groove 30, the length of spring 23 compression can be measured through the scale line 31. Personnel can calculate the elastic coefficient k through the size of spring 23, and can accurately calculate the force exerted by the support rod 33 on the arch 1, which is the magnitude of the supporting force, so that it is not easy to break the arch 1 when lifting it.

[0069] Preferably, the support has an elastic stiffness of 60 N / mm and a maximum stroke of not less than 60 mm; the adjustment accuracy of the support force is not less than 1 kN, and the magnitude of the support force can be visually read and adjusted manually without the aid of power tools. This support can be used with conventional scaffolding and can be connected with bolts.

[0070] It should be noted that the reason for starting the jacking with the higher platform 16 is that the curvature of the arch 1 at the top of the higher platform 16 is more gradual, allowing it to withstand a wider range of jacking forces. When subsequently adjusting the jacking of the medium-height platform 16, the change in jacking force provided by the higher platform 16 is less significant compared to its capacity to withstand jacking forces, making it less likely to exceed the range of jacking forces that platform 16 can withstand. Similarly, this theory also applies to the order of adjustment of the medium-height platform 16 and the lower-height platform 16. Therefore, this scheme allows for precise control of the jacking force, reducing the likelihood of the arch 1 being broken during jacking.

[0071] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. Construction technology for reinforcing large-span roof slabs, characterized by: The method comprises the following steps: S1: Install several column feet (15) with different heights on the building surface under the vault (1), the height of the column feet (15) increases along the center direction of the vault (1), and a platform (16) is installed on the top of the column feet (15) to form several platforms (16) with different heights, and a base (18) distribution drawing is made on the platform (16); S2: According to the base (18) distribution drawing, the base (18) and the center of the adhesive plate are fixed, and the base (18) needs to fall in the center of the main beam or the secondary beam of the vault (1); S3: The adhesive plate (17) is installed at the center of the adhesive plate at the bottom of the vault (1); S4: The support rod (33) is transported to the installation position for pre-installation, the support rod (33) is installed in the outer sleeve (19) at the top of the base (18), then the jacking mechanism is installed between the base (18) and the support rod (33), and the adhesive plate (17) is connected with the support rod (33); S5: According to the platforms (16) with different heights, the jacking is divided into several times, the jacking sequence of the platforms (16) is determined according to the height of the platforms (16), the first jacking is performed on the platforms (16) with higher height, the second jacking is performed on the platforms (16) with medium height, and the last jacking is performed on the platforms (16) with lower height, each time of jacking is divided into several stages, the jacking distance of each stage is the same, and the jacking of each stage needs to be performed simultaneously and synchronously, after the jacking of each stage of the platforms (16) is completed, the jacking of the next stage is performed.

2. The reinforcing construction process of long-span roof slab according to claim 1, characterized in that: In S2, after the base (18) and the center of the adhesive plate are fixed, the center point of the base (18) is marked and numbered according to the drawing, the center of the adhesive plate at the vault (1) is marked, a circle is drawn with the mark as the center, and the vertical distance between the center point of the base (18) and the center point of the adhesive plate is measured and recorded together with the number of the base (18).

3. The reinforcing construction process of long-span roof slab according to claim 1, characterized in that: S3 comprises the following steps: S3.1: The mortar layer in the marked circle is cleaned by manpower and tools; S3.2: The concrete surface of the position where the mortar layer has been cleaned is cleaned by using a polishing sheet, and is scrubbed clean; S3.3: The center of the adhesive plate (17) and the direction of the twist are positioned by using the customized adhesive plate (17) template and the originally marked center of the base (18) as the main part, and then are marked and ensured to be perpendicular to the center of the vault (1); S3.4: The four temporary fixing ears of the adhesive plate (17) are temporarily fixed to the bottom of the vault (1) by using adhesive glue, the temporary fixing is removed after the adhesive glue is solidified, and then the adhesive plate (17) is pasted at the center of the adhesive plate at the bottom of the vault (1).

4. The reinforcing construction process of long-span roof slab according to claim 1, characterized in that: In S5, the specific jacking steps are as follows: after the upper adhesive plate (17) is completely in contact with and fixed to the vault (1), the height of the bottom end of the spring (23) is adjusted by the positioning assembly (22), and the spring (23) is compressed, the upper end of the spring (23) is static because of being connected with the support rod (33), when the spring (23) is compressed to a predetermined length, the size of the jacking force can be known by observing the distance of the upward movement of the lower end of the spring (23).

5. The reinforcing construction process of long-span roof slab according to claim 1, characterized in that: In S1, before installing the column foot (15), install the lower support structure on the building surface of the next floor under the vault (1) near the wall, install the wall support structure on the building surface under the vault (1) near the wall, and make the wall support structure above the lower support structure, and when installing the platform (16), connect the bottom of the platform (16) with the top of the wall support structure.

6. The reinforcing construction process of long-span floor slab according to claim 5, characterized in that: In S1, after installing the lower support structure, install the first reinforcing diagonal rod (7) on both sides of the lower support structure, and install the second reinforcing diagonal rod (8) at both ends of the lower support structure.

7. The reinforcing construction process of long-span floor slab according to claim 5, characterized in that: In S1, before installing the wall support structure, install the lug plate (10) on the wall according to the installation position of the lower support structure, and then connect the lug plate (10) and the wall support structure.

8. The reinforcing construction process of long-span floor slab according to claim 5, characterized in that: In S1, when installing the lower support structure, ensure that the top of the lower support structure is a beam for supporting the top surface of the next floor under the vault (1), and determine the position of the wall support structure accordingly.

9. The reinforcing construction process of long-span roof slab according to claim 1, characterized in that: In S4, according to the measurement data of the number of each base (18) during positioning, the support rod (33) is cut, and φ60*4 pipe is used below 2.5 meters, and φ83*4 pipe is used above 2.5 meters.

10. The reinforcing construction process of long-span floor slab according to claim 3, characterized in that: In S3.4, the adhesive is AB glue and nano glue.

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