Construction device and construction method for eliminating abutted seam of single-side formwork of ultrahigh outer wall of basement

Abstract

The invention discloses a construction device and a construction method for eliminating a splicing seam of a single-sided formwork of an ultrahigh outer wall of a basement. The device comprises a first adjusting device, the first adjusting device comprises an L-shaped hook bolt for hooking a square timber round hole of an outer wall formwork, the other end of the first adjusting device penetrates through the right-angle side of a triangular set-shaped steel support and a short steel base plate, and a second fastening nut is tightened to enable the short steel base plate to be tightly attached to the support; double steel pipes are arranged at the upper end and the lower end of the L-shaped hook bolt between the support and the square timber, the mountain-shaped clamp is arranged between the double steel pipes and the support, and the first fastening nut is tightened to enable all the components to be stably connected; the second adjusting device and the third adjusting device comprise L-shaped hook bolts which are arranged on the two sides of the abutted seam of the formworks respectively, penetrate through the formworks to hook the longitudinal bars and are connected with straight bolts through connecting sleeves. Double steel pipes are arranged at the upper and lower ends of the straight bolt, and an E-shaped clamp, a steel base plate and a gasket are sequentially arranged at the other end of the straight bolt; the second adjusting device is a short steel base plate, the third adjusting device is a long steel base plate, and the long steel base plate is connected with two bolts across seams. The problems that abutted seams between formworks are staggered, and perpendicularity and flatness are poor are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of building construction, and more specifically, relates to a construction device and a construction method for eliminating joints in a single-sided formwork of an ultra-high exterior wall of a basement. Background Art

[0002] With the rapid development of my country's economy, urban underground space construction is developing towards large floor heights and large spaces, especially the underground basement, which has great commercial value. As a result, the basement floor height is often more than 6 meters. Traditionally, the outer wall of the basement is a certain distance away from the deep foundation pit support piles. The outer wall of the basement adopts a double-sided formwork construction method with tension bolts. The backfill between the support piles and the outer wall makes the outer wall easy to penetrate water. At present, many domestic practices are to push the outer edge of the basement outer wall to the support piles, expand the basement plane area, and adopt a single-sided formwork construction process. The fixed bracket is firmly fixed by pre-buried anchor bolts at the root of the outer wall. This solution does not require backfilling of the basement outer wall, there is no hidden danger of water leakage from the tension bolts, and the overall waterproof effect is good.

[0003] Standardized modular triangular steel supports utilize a unitized formwork system. Typically, two or three triangular steel supports are connected together and assembled into a single unit. Several units are then joined together to form a single, fully poured structure. For exterior walls exceeding 6 meters in height, a single unit is composed of several separate formwork panels, which can lead to quality issues such as misaligned joints, poor verticality, and poor flatness.

[0004] Furthermore, because the formwork height between two adjacent installation units exceeds 6 meters, the cumulative construction errors during the installation of the triangular steel supports can lead to misalignment of the joints between the two adjacent installation units. This problem becomes increasingly prominent as the height increases. This can lead to quality issues such as misalignment, grout leakage, and even water seepage after the concrete pour. If these quality issues occur, the traditional approach is to use the steel pipe supports of the basement floor and install horizontal steel pipes to support the formwork at the joints. However, this approach has been found to be ineffective in practice.

[0005] Therefore, it is necessary to find a method that utilizes the characteristics of the triangular steel bracket reinforcement method to make local micro-adjustments to the template at the joints. First, a template adjustment device is used to ensure that each template unit itself is vertical, and then another template adjustment device is used to ensure that adjacent template installation units are on the same vertical plane. Summary of the Invention

[0006] The present invention aims to provide a device and construction method for eliminating joints in single-sided formwork for ultra-high basement exterior walls, so as to solve quality problems such as misaligned formwork joints, poor verticality and flatness in the construction of single-sided formwork for ultra-high basement exterior walls, while achieving the effects of simple operation and secondary use of materials.

[0007] In view of the above defects or improvement needs of the prior art, as a first aspect of the present invention, a construction device for eliminating joints in a single-sided formwork of an ultra-high exterior wall of a basement is provided, comprising: an adjusting device 1, an adjusting device 2, and an adjusting device 3;

[0008] The first adjusting device includes an L-shaped hook bolt that hooks the middle circular hole of the square timber of the exterior wall formwork through its hook end, and the other end of the L-shaped hook bolt passes through the right angle side of the triangular steel bracket perpendicular to the ground and passes through the middle of the short steel plate; a second fastening nut is tightened on the other side of the short steel plate so that the short steel plate is fixed tightly against the triangular steel bracket; steel pipes are respectively arranged at the upper and lower ends of the L-shaped hook bolt between the triangular steel bracket and the square timber to form a double steel pipe, so that the L-shaped hook bolt is clamped between the double steel pipes and a mountain clamp is arranged between the double steel pipes and the triangular steel bracket, and the mountain clamp is fixed by tightening the first fastening nut on the inner side of the triangular steel bracket;

[0009] Both the second and third adjustment devices include an L-shaped hook bolt disposed on opposite sides of the template joint, with its end passing through the template to hook onto the external longitudinal reinforcement of the exterior wall, and the other end of the L-shaped hook bolt connected to one end of the straight bolt via a connecting sleeve; steel pipes are disposed at the upper and lower ends of the straight bolt close to the square timber to form a double steel pipe, and a mountain clip, a steel backing plate, and a gasket are sequentially disposed at the other end of the double steel pipe and fixed by tightening nuts;

[0010] The steel plate of the adjusting device 2 is a short steel plate; the steel plate of the adjusting device 3 is a long steel plate; the long steel plate spans the template joint and connects the two L-shaped hook bolts of the adjusting device 3 at the same time.

[0011] Furthermore, the second adjusting device and the third adjusting device are arranged at the joint of the template and are spaced apart from each other from top to bottom.

[0012] Furthermore, the double steel pipes are arranged to intersect perpendicularly with the square timber.

[0013] Furthermore, the triangular shaped steel bracket is fixed at a right angle at the bottom with an anchor bolt, and an adjustment bolt at the tail of the frame is provided at the other end; the triangular shaped steel brackets of different installation units are connected with connecting steel pipes.

[0014] As a second aspect of the present invention, a construction method for eliminating joints in a single-sided formwork of an ultra-high exterior wall of a basement is also provided, the specific steps comprising:

[0015] S1. Pre-prepare the anchor bolts when pouring the bottom plate and the middle plate;

[0016] S2. Assemble and adjust the unit formwork. Using L-shaped hook bolts, double steel pipes, mountain clamps, short steel plates, first and second fastening nuts, assemble the adjustment device 1 to ensure parallelism between the formwork surface and the columns of the triangular steel support.

[0017] S3. Adjust the bolts at the tail of the triangular steel bracket so that the template facade coincides with the outer wall edge;

[0018] S4. Assemble the second adjustment device using L-shaped hook bolts, connecting sleeves, straight bolts, mountain clamps, double steel pipes, short steel plates, washers, and fastening nuts. This adjustment device ensures that the edges of each installation unit are straight and parallel to the longitudinal reinforcement of the basement exterior wall.

[0019] S5. An adjustment device 3 is formed by an L-shaped hook bolt, a connecting sleeve, a straight bolt, a mountain clamp, a double steel pipe, a long steel plate, a gasket and a fastening nut. The adjustment device 3 is used to make the templates on both sides in the same plane.

[0020] The construction method for eliminating joints in a single-sided formwork of an ultra-high exterior wall of a basement according to claim 1 is characterized by further comprising:

[0021] S6. Connect the adjacent triangular steel support frames through connecting steel pipes, and adjust the adjusting bolts at the rear of the frame so that the upper edge of the template tilts toward the wall by no more than mm;

[0022] S7. Complete formwork inspection, pour concrete for the basement exterior wall, and maintain the concrete. Once the formwork is ready for removal, loosen the adjustment bolts at the rear of the brackets, remove the connecting steel pipes between adjacent unit frames, remove the anchor bolts, loosen the formwork, and remove the embedded parts.

[0023] S8. Move the single-sided support unit to the next flow section to prepare for the next concrete pouring.

[0024] Furthermore, the specific process of pre-preparing the anchor bolts when casting the base plate and the middle plate is as follows: pre-preparing the anchor bolts when casting the base plate and the middle plate, ensuring that all the threads are exposed outside the concrete when pre-embedding the anchor bolts, and ensuring that the embedded parts are in the same straight line; taking protective measures for the threads before pre-embedding the anchor bolts to prevent damage to the threads.

[0025] Furthermore, the installation method of the adjustment device 1 is: a hole is opened in the middle of the square wood of the exterior wall template, the round hole is hooked with an L-shaped hook bolt, and the loose exterior wall template is formed into a whole through the mountain-shaped clamp, double steel pipes and the first fastening nut. The L-shaped hook bolt then passes through the triangular fixed steel bracket, the short steel pad is installed, and the second fastening nut is screwed to form the template and the triangular fixed steel bracket into a whole.

[0026] Furthermore, the installation method of the second adjustment device is: hook the longitudinal reinforcement of the basement outer wall through the L-shaped hook bolt, and tighten the fastening nuts in sequence so that the template edge of each installation unit is vertical and coincides with the outer wall edge.

[0027] Furthermore, the installation method of the adjustment device three is: hook the longitudinal reinforcement of the basement outer wall through the L-shaped hook bolts on both sides of the template joint, then cross the long steel pad across the template joint, and tighten the fastening nuts on both sides respectively to adjust the templates on both sides to be in the same plane.

[0028] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0029] 1. The present invention provides a construction device for eliminating seams in single-sided formwork for super-high exterior walls of basements. The device tightly connects the exterior wall formwork timber to the triangular shaped steel bracket through an adjustment device consisting of an L-shaped hook bolt, double steel pipes, a mountain-shaped clamp, a short steel pad, a first fastening nut, and a second fastening nut. During construction, first allow the L-shaped hook bolt to hook the circular hole in the middle of the exterior wall formwork timber, and then use the mountain-shaped clamp, double steel pipes, and the first fastening nut to integrate the scattered exterior wall formwork into a whole. Then, pass through the triangular shaped steel bracket, install the short steel pad, and screw the second fastening nut to make the formwork and the triangular shaped steel bracket become one. Adjust the formwork surface to keep it parallel to the column of the triangular bracket. This innovative method effectively solves the quality problems of misaligned seams, poor verticality, and flatness between formworks in a single installation unit of the exterior wall of a super-high basement, greatly improves the construction quality of the single formwork installation unit itself, and lays a solid foundation for subsequent construction.

[0030] 2. The present invention provides a construction device for eliminating seams in single-sided formwork of super-high exterior walls of basements. The device comprises an adjustment device 2 composed of an L-shaped hook bolt, a connecting sleeve, a straight bolt, a mountain clamp, a double steel pipe, a short steel plate, a gasket and a fastening nut, and uses the L-shaped hook bolt to hook the longitudinal reinforcement of the exterior wall of the basement. During operation, the fastening nuts are screwed in sequence to make the template edge of each installation unit vertical and coincide with the edge of the exterior wall, so that the template edge of each installation unit is straight and parallel to the longitudinal reinforcement. This innovative measure solves the problem of substandard verticality and flatness of the template edge of a single installation unit on the exterior wall of a super-high basement, ensures that the template edge of each installation unit can meet the construction standards, reduces the risks of misalignment, slurry leakage and the like caused by template edge problems, and improves the overall quality of exterior wall construction.

[0031] 3. The present invention provides a construction device for eliminating the seams of single-sided formwork on the super-high exterior wall of a basement. The device comprises an adjustment device consisting of an L-shaped hook bolt, a connecting sleeve, a straight bolt, a mountain clamp, a double steel pipe, a long steel pad, a gasket and a fastening nut. L-shaped hook bolts are arranged on both sides of the template seam to hook the external longitudinal reinforcement of the exterior wall, and the long steel pad spans the template seam. By respectively twisting the fastening nuts on both sides, the positions of the templates on both sides can be accurately adjusted so that the templates on both sides are in the same plane. This innovative adjustment method successfully solves the quality problem of misalignment at the template seams of the two installation units on the exterior wall of the super-high basement, effectively avoids the problems of misalignment, slurry leakage, water leakage at the seams after concrete pouring, and improves the waterproof performance and appearance quality of the exterior wall of the basement. At the same time, the operation is simple, the materials can be reused, and the construction cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a structural diagram of a device according to an embodiment of the present invention;

[0033] Figure 2 Two bracket-shaped installation units of the embodiment of the present invention are viewed from above Figure 1 ;

[0034] Figure 3 Two bracket-shaped installation units of the embodiment of the present invention are viewed from above Figure 2 ;

[0035] Figure 4 BB cross-sectional view of two bracket shaping and mounting units according to an embodiment of the present invention;

[0036] Figure 5 AA cross-sectional view of two bracket shaping and mounting units according to an embodiment of the present invention;

[0037] Figure 6 It is a CC cross-sectional view of two bracket shaping and mounting units according to an embodiment of the present invention;

[0038] Figure 7 This is a flow chart of a construction method for eliminating joints in a single-sided formwork of an ultra-high exterior wall of a basement according to an embodiment of the present invention;

[0039] In all the drawings, the same figure marks represent the same technical features, specifically: 1-square timber, 2-formwork, 3-horizontal reinforcement of basement exterior wall, 4-longitudinal reinforcement of basement exterior wall, 5-L-type hook bolt, 6-connecting sleeve, 7-double steel pipe, 8-mountain-shaped clamp, 9-long steel plate, 10-gasket, 11-fastening nut, 12-straight bolt, 13-short steel plate, 14-formwork joint, 16-connecting steel pipe, 17-adjustment device three, 18-adjustment device two, 19-adjustment device one, 20-anchor bolt, 21-adjustment bolt at the tail of the frame, 22-triangular fixed steel bracket, 111-first fastening nut, 112-second fastening nut. DETAILED DESCRIPTION

[0040] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0041] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0042] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] In the present invention, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0044] Example 1

[0045] Please refer to Figure 1 This embodiment 1 provides a construction device for eliminating joints in a single-sided formwork of an ultra-high exterior wall of a basement, comprising:

[0046] Please refer to Figure 2 as well as Figure 6, the adjustment device 19 consists of an L-shaped hook bolt 5 (specification D15), a double steel pipe 7 with an outer diameter of 48mm, a mountain-shaped clamp 8, a short steel washer 13, a first fastening nut 111 (specification D15) and a second fastening nut 112 (specification D15). The L-shaped hook bolt 5 is made of high-strength alloy steel, and its D15 specification gives it strong tensile strength, ensuring that it can stably withstand the force between the formwork and the bracket during the connection process. In the middle of the square timber 1 of the exterior wall formwork 2, a circular hole suitable for the L-shaped hook bolt 5 is opened using special hole-opening equipment, and the hole diameter is strictly controlled at (15.5±0.5) mm. This size can ensure that the L-shaped hook bolt 5 can pass through smoothly and fit tightly with it to prevent shaking, thereby effectively avoiding the displacement of the formwork due to loose connection.

[0047] The hook end of the L-shaped hook bolt 5 hooks into the circular hole, and the other end passes through the right-angled side of the triangular steel bracket 22 perpendicular to the ground. Two parallel steel pipes with an outer diameter of 48 mm are installed at the upper and lower ends of the L-shaped hook bolt 5 between the triangular steel bracket 22 and the square timber 1 to form a double steel pipe 7. The double steel pipe 7 intersects the square timber 1 perpendicularly and, in conjunction with the mountain clamp 8, greatly enhances the stability of the connection. The mountain clamp 8 is made of high-quality carbon structural steel and is hot-dip galvanized. It not only has excellent mechanical properties but also effectively resists rust, extending the service life of the device. On the inside of the triangular steel bracket 22, the mountain clamp 8 is fixed by a first fastening nut 111. On the outside of the triangular steel bracket 22 opposite the first fastening nut 111, a short steel washer 13 is tightly installed. The L-shaped hook bolt 5 passes through the middle of the short steel washer 13. On the side of the short steel washer 13 not in contact with the triangular steel bracket 22, a second fastening nut 112 is tightened to secure the short steel washer 13.

[0048] The core function of the adjustment device 19 is to adjust the template surface to be parallel to the columns of the triangular shaped steel bracket 22. In the construction of the exterior wall of a super-high basement, a single installation unit is composed of multiple bulk templates, and it is very easy for these templates to have problems such as misaligned joints, poor verticality and flatness. The adjustment device 19 connects the loose exterior wall templates 2 into a whole through the above-mentioned connection method, and then firmly connects it to the triangular shaped steel bracket 22. Construction personnel can fine-tune the second fastening nut 112 and use measuring tools such as a ruler and a laser level to accurately adjust the template surface so that it is parallel to the columns of the triangular shaped steel bracket 22, thereby effectively solving the problems of joints and verticality of the templates in a single installation unit, laying a solid foundation for subsequent construction.

[0049] Reference Figure 3-Figure 5, Adjustment device 2 18: Adjustment device 2 18 consists of an L-shaped hook bolt 5 (specification D15), a connecting sleeve 6, a straight bolt 12 (specification D15), a mountain clip 8, a double steel pipe 7 with an outer diameter of 48 mm, a short steel plate 13, a gasket 10 and a fastening nut 11 (specification D15). The double steel pipe 7 also intersects the square timber 1 vertically. At the template joint 14, the adjustment device is arranged from the top, and the adjustment device 2 18 and the adjustment device 3 17 are arranged in sequence from top to bottom. On both sides of the template joint 14, an L-shaped hook bolt 5 is arranged opposite each other, the end of which passes through the template 2 and hooks the longitudinal reinforcement 4 of the basement exterior wall outside the exterior wall, and the other end is connected to one end of the straight bolt 12 through the connecting sleeve 6. The connecting sleeve 6 adopts a high-strength material compatible with the L-shaped hook bolt 5 and the straight bolt 12 to ensure a reliable connection and effective force transmission. Close to the square wood 1, set steel pipes with an outer diameter of 48mm at the upper and lower ends of the straight bolt 12 to form a double steel pipe 7. At the other end of the double steel pipe 7, install the mountain card 8, short steel plate 13, and gasket 10 in sequence, and fix them by tightening the fastening nut 11.

[0050] During the construction of the exterior wall of an ultra-high basement, the edges of the template of a single installation unit are prone to substandard verticality and flatness. The adjustment device 2 18 hooks the longitudinal reinforcement 4 of the basement exterior wall through the L-shaped hook bolt 5 to form a stable force system. The construction personnel tighten the fastening nuts 11 in sequence and use tools such as plumb lines and rulers to make the edges of the template 2 of each installation unit vertical and coincide with the edge of the exterior wall, ensuring that the template edge is straight and parallel to the longitudinal reinforcement 4 of the basement exterior wall, effectively improving the construction quality of the template edge and avoiding quality risks such as misalignment and leakage caused by problems with the template edge.

[0051] Reference Figure 2 、 Figure 4 as well as Figure 5 , Adjustment device three 17: Adjustment device three 17 consists of an L-shaped hook bolt 5 (specification D15), a connecting sleeve 6, a straight bolt 12 (specification D15), a mountain clamp 8, a double steel pipe 7 with an outer diameter of 48 mm, a long steel plate 9, a gasket 10 and a fastening nut 11 (specification D15). The double steel pipe 7 intersects the square timber 1 vertically. At the template joint 14, the adjustment device three 17 takes over the adjustment device two 18, and is arranged at intervals from top to bottom. Similarly, on both sides of the template joint 14, L-shaped hook bolts 5 are arranged opposite each other, and their ends pass through the template 2 to hook the longitudinal reinforcement 4 of the basement outer wall, and the other end is connected to one end of the straight bolt 12 through the connecting sleeve 6. Close to the square timber 1, steel pipes with an outer diameter of 48 mm are set at the upper and lower ends of the straight bolt 12 to form a double steel pipe 7. At the other end of the double steel pipe 7, the mountain clamp 8, the long steel plate 9, and the gasket 10 are installed in sequence, and fixed by tightening the fastening nut 11. The length of the long steel plate 9 is customized according to the width of the template joint 14, and is usually larger than the joint width to ensure that it can effectively cross the template joint 14 and connect the two L-shaped hook bolts 5 at the same time.

[0052] During the splicing of adjacent installation units, the high formwork height and the cumulative errors during the installation of the triangular steel brackets 22 can easily cause misalignment at the template joints 14. Adjustment device 3 17 utilizes L-shaped hook bolts 5 on either side of the template joint 14, connecting the joints 14 with long steel pads 9. Construction workers tighten the fastening nuts 11 on each side and, using equipment such as a laser rangefinder, can precisely adjust the templates 2 on both sides to align them. This effectively eliminates misalignment at the template joints 14 between adjacent installation units, preventing quality issues such as misalignment, mortar leakage, and water seepage after concrete pouring, thereby improving the waterproofing and appearance of the basement exterior walls.

[0053] Furthermore, the triangular steel brackets 22 are welded together for high strength and stability, providing reliable support for the entire formwork system. Anchor bolts 20 are installed at right angles to the bottom to ensure the brackets do not shift during construction. Adjustment bolts 21 are located at the other end of the bracket body to facilitate fine-tuning of the formwork position. Connecting steel pipes 16 connect the triangular steel brackets 22 of different installation units, enhancing the integrity and stability of the entire formwork system.

[0054] Example 2

[0055] Please refer to Figure 7 This embodiment 2 provides a construction method for eliminating joints in a single-sided formwork of an ultra-high exterior wall of a basement, comprising:

[0056] (1) Pre-prepare the anchor bolts when pouring the bottom plate and the middle plate;

[0057] During the pouring of the basement floor or mid-slab, the pre-embedding of anchor bolts 20 is carried out simultaneously. During this process, the threads of the anchor bolts 20 must be completely exposed above the concrete surface, and all embedded components must be aligned horizontally. To prevent damage to the threads of the anchor bolts 20 during subsequent construction, they must be tightly wrapped with plastic sheeting before pre-embedding. This plastic sheeting must be securely tied with strong lashing materials to ensure comprehensive protection.

[0058] (2) Unit template assembly and adjustment:

[0059] The operation is performed using an adjustment device 19. First, a circular hole is accurately opened in the middle of the square wood 1 of the exterior wall formwork 2, and the hook end of the L-shaped hook bolt 5 is accurately hooked into the circular hole. Then, with the help of the mountain-shaped card 8, the double steel pipe 7 and the adjustment bolt, the originally loose exterior wall formwork 2 is tightly connected into a whole. Subsequently, the other end of the L-shaped hook bolt 5 is smoothly passed through the triangular shaped steel bracket 22, and the short steel pad 13 is installed on the outside of the triangular shaped steel bracket 22, and the second fastening nut 112 is screwed, so that the formwork 2 and the triangular shaped steel bracket 22 are firmly formed into an integral structure. After completing the above connection, by fine-tuning the external nut, the formwork surface and the column of the triangular shaped steel bracket 22 are accurately controlled to remain parallel. Finally, the adjustment bolt 21 at the tail of the frame at the tail of the triangular shaped steel bracket 22 is adjusted to push the formwork 2 to move until the facade of the formwork 2 completely coincides with the predetermined exterior wall edge line.

[0060] (3) Adjustment of template joints between units

[0061] Use the adjustment device 2 18. During construction, hook one end of the L-shaped hook bolt 5 onto the longitudinal reinforcement 4 of the basement exterior wall, and then tighten the fastening nut 11 in sequence. During the tightening process, observe and adjust in real time to ensure that the edge of the template 2 of each installation unit reaches a vertical state and accurately coincides with the edge of the exterior wall, so as to ensure that the edge of the template 2 is parallel to the longitudinal reinforcement 4 of the basement exterior wall, thereby improving the construction quality of the template edge.

[0062] Using the third adjustment device 17, L-shaped hook bolts 5 are symmetrically arranged on both sides of the template joint 14, so that their ends pass through the template 2 and firmly hook the longitudinal reinforcement 4 of the basement exterior wall. The other end of the L-shaped hook bolt 5 is connected to one end of the straight bolt 12 through the connecting sleeve 6, and double steel pipes 7 are set at the upper and lower ends of the straight bolt 12 close to the square wood 1. The long steel pad 9 spans the template joint 14 and connects the L-shaped hook bolts 5 on both sides at the same time. At the other end of the double steel pipe 7, the mountain clip 8, the long steel pad 9, and the gasket 10 are installed in sequence and fixed by tightening the fastening nut 11. During the tightening process, the position changes of the templates 2 on both sides are closely observed, and by accurately adjusting the tightening degree of the fastening nuts 11 on both sides, the templates 2 on both sides are accurately in the same plane, effectively eliminating the misalignment problem at the joint 14 of the adjacent installation unit templates 2. In actual construction, the second adjustment device 18 and the third adjustment device 17 need to be set at intervals to achieve the best adjustment effect.

[0063] (4) Secure connection of the frame and fine adjustment of the template inclination

[0064] Select connecting steel pipes 16 that meet the specification requirements, and their pipe diameter and wall thickness must meet the support strength and stability requirements. Use butt fasteners or other reliable connection methods to reliably connect the triangular shaped steel brackets 22 of adjacent units to ensure that the connection parts are tight and firm to prevent loosening and displacement during the subsequent construction process. After the connection is completed, slowly turn the adjustment bolt 21 at the tail of the frame, and use the lever principle to drive the upper end of the template 2 to tilt toward the wall. During the tilting process, use a high-precision laser level or ruler and other measuring tools to measure at a certain height (such as 50cm) to monitor the inclination of the upper end of the template 2 in real time to ensure that it tilts 5mm toward the wall. This tilting operation is intended to reserve reasonable space for the displacement of the template 2 due to lateral pressure during the concrete pouring process, to avoid the upper end from shifting outward due to the lateral force on the template during pouring, thereby ensuring that the wall is vertical after pouring and improving the appearance quality and verticality accuracy of the wall.

[0065] (5) Concrete pouring

[0066] After completing the aforementioned operations of assembling, adjusting, and treating the joints of formwork 2, a comprehensive and detailed inspection of the verticality and joints of formwork 2 is conducted. This inspection process is strictly carried out in accordance with relevant construction standards and specifications to ensure that various indicators such as formwork verticality deviation and joint width meet the requirements. Only after passing the inspection can the exterior wall concrete be poured. During the concrete pouring process, the pouring speed, height, and vibration method must be strictly controlled to ensure the quality of the concrete pouring and avoid damage to formwork 2 or loss of joint quality due to improper pouring. After pouring, the concrete is cured according to maintenance standards to ensure the normal growth of concrete strength.

[0067] (6) Dismantle the formwork and transfer the support to prepare for the next stage of construction

[0068] When the concrete strength reaches the conditions for formwork removal, first loosen the adjusting bolts 21 at the rear of the bracket to release the tilt constraint on the top of the formwork 2. Then remove the connecting steel pipes 16 between adjacent unit frames, then remove the anchor bolts 20, then carefully loosen the formwork 2, and finally remove the embedded parts. The removed materials should be sorted and properly stored.

[0069] Move the single-side support unit smoothly to the construction position of the next flow section, inspect and maintain the support unit and formwork 2, and make full preparations for the next concrete pouring construction.

[0070] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A construction device for eliminating joints on single-sided formwork of super-high exterior walls of a basement, characterized in that: include: Adjustment device one (19), adjustment device two (18) and adjustment device three (17); The adjusting device (19) comprises an L-shaped hook bolt (5) hooked at its hook end to the middle circular hole of the square wood (1) of the external wall template (2), and the other end of the L-shaped hook bolt (5) passes through the right angle side of the triangular shaped steel bracket (22) perpendicular to the ground and passes through the middle of the short steel plate (13); on the other side of the short steel plate (13), a second fastening nut (112) is tightened to fix the short steel plate (13) against the triangular shaped steel bracket (22); steel pipes are respectively arranged at the upper and lower ends of the L-shaped hook bolt (5) between the triangular shaped steel bracket (22) and the square wood (1) to form a double steel pipe (7), so that the L-shaped hook bolt (5) is clamped in the middle of the double steel pipe (7) and a mountain clamp (8) is arranged between the double steel pipe (7) and the triangular shaped steel bracket (22), and the mountain clamp (8) is fixed by tightening the first fastening nut (111) on the inner side of the triangular shaped steel bracket (22); The second adjusting device (18) and the third adjusting device (18) both comprise an L-shaped hook bolt (5) arranged on opposite sides of the template joint (14), the end of which passes through the template (2) and hooks the external longitudinal reinforcement (4) of the external wall, and the other end of which is connected to one end of the straight bolt (12) through a connecting sleeve (6); steel pipes are arranged at the upper and lower ends of the straight bolt (12) close to the square wood (1) to form a double steel pipe (7), and a mountain-shaped clamp (8), a steel pad, and a gasket (10) are arranged in sequence at the other end of the double steel pipe (7) and fixed by screwing a fastening nut (11); The steel pad of the second adjusting device (18) is a short steel pad (13); the steel pad of the third adjusting device (18) is a long steel pad (9); the long steel pad (9) spans the template joint (14) and connects the two L-shaped hook bolts (5) of the third adjusting device (18) at the same time.

2. A construction device for eliminating joints in a single-sided formwork of a super-high exterior wall of a basement according to claim 1, characterized in that: The second regulating device (18) and the third regulating device (17) are arranged at the template joint (14) and are arranged in sequence from top to bottom.

3. A construction device for eliminating joints in a single-sided formwork of a super-high exterior wall of a basement according to claim 1, characterized in that: The double steel pipes (7) are arranged to intersect the square timber (1) at right angles.

4. A construction device for eliminating joints in a single-sided formwork of a super-high exterior wall of a basement according to claim 1, characterized in that: An anchor bolt (20) is provided at a right angle at the bottom of the triangular shaped steel bracket (22) for fixing, and an adjusting bolt (21) is provided at the other end of the bracket body tail; the triangular shaped steel brackets (22) of different installation units are provided with connecting steel pipes (16) for connection.

5. A construction method for eliminating joints in single-sided formwork of super-high exterior walls of basements, characterized in that: The method is implemented by using a construction device for eliminating joints of a single-sided formwork for a super-high exterior wall of a basement according to any one of claims 1 to 4, and the specific steps include: S1. Pre-prepare the anchor bolts (20) when pouring the bottom plate and the middle plate; S2. Assembling and adjusting the unit template (2), using L-shaped hook bolts (5), double steel pipes (7), mountain-shaped cards (8), short steel plates (13), a first fastening nut (111) and a second fastening nut (112) to form an adjustment device (19), adjusting the template (2) surface and the triangular shaped steel bracket (22) to ensure parallel columns; S3. Adjust the bolt (21) at the tail of the triangular shaped steel bracket (22) so that the template (2) facade coincides with the outer wall edge; S4. An adjustment device 2 (18) is composed of an L-shaped hook bolt (5), a connecting sleeve (6), a straight bolt (12), a mountain-shaped card (8), a double steel pipe (7), a short steel plate (13), a gasket (10) and a fastening nut (11). The adjustment device 2 (18) is used to make the edge of the template (2) of each installation unit straight and parallel to the longitudinal reinforcement (4) of the basement outer wall; S5. An adjusting device 3 (17) is formed by an L-shaped hook bolt (5), a connecting sleeve (6), a straight bolt (12), a mountain-shaped clamp (8), a double steel pipe (7), a long steel plate (9), a gasket (10) and a fastening nut (11). The adjusting device 3 (17) is used to make the templates (2) on both sides in the same plane.

6. A construction method for eliminating joints in single-sided formwork of a super-high exterior wall of a basement according to claim 5, characterized in that: Also includes: S6. Connect the adjacent triangular shaped steel brackets (22) by connecting the steel pipes (16) and adjust the adjustment bolts (21) at the rear of the frame so that the upper edge of the template (2) tilts toward the wall by no more than 5 mm. S7. After the formwork (2) is inspected and poured as a whole, the concrete of the basement exterior wall is poured and maintained. After the formwork is ready for demoulding, loosen the adjustment bolts (21) at the end of the bracket, remove the connecting steel pipes (16) of the adjacent unit frames, remove the anchor bolts (20), loosen the formwork (2), and remove the embedded parts. S8. Move the single-sided support unit to the next flow section to prepare for the next concrete pouring.

7. A construction method for eliminating joints in a single-sided formwork of a super-high exterior wall of a basement according to claim 5, characterized in that: The specific process of pre-arranging the anchor bolts (20) when casting the bottom plate and the middle plate is as follows: pre-arranging the anchor bolts (20) when casting the bottom plate and the middle plate, ensuring that the threads of the anchor bolts (20) are all exposed outside the concrete when pre-embedding, and ensuring that the pre-embedded parts are in the same straight line; and taking protective measures for the threads of the anchor bolts (20) before pre-embedding to prevent the threads from being damaged.

8. The method for eliminating joints in single-sided formwork of a super-high exterior wall of a basement according to claim 5, characterized in that: The installation method of the adjusting device 1 (19) is as follows: a hole is opened in the middle of the square wood (1) of the external wall template (2), the circular hole is hooked by an L-shaped hook bolt (5), and the loose external wall template (2) is formed into a whole by using a mountain clamp (8), a double steel pipe (7) and a first fastening nut (111), and the L-shaped hook bolt (5) is then passed through the triangular shaped steel bracket (22), a short steel pad (13) is installed, and the second fastening nut (112) is screwed to make the template (2) and the triangular shaped steel bracket (22) form a whole.

9. The method for eliminating joints in single-sided formwork of a super-high exterior wall of a basement according to claim 5, characterized in that: The installation method of the second adjustment device (18) is as follows: hook the longitudinal reinforcement (4) of the basement outer wall through the L-shaped hook bolt (5), and tighten the fastening nut (11) in sequence so that the edge of the template (2) of each installation unit is vertical and coincides with the edge of the outer wall.

10. A construction method for eliminating joints in single-sided formwork of a super-high exterior wall of a basement according to claim 5, characterized in that: The installation method of the third adjusting device (17) is as follows: hook the longitudinal reinforcement (4) of the basement outer wall through the L-shaped hook bolts (5) on both sides of the template joint (14), then cross the long steel plate (9) across the template joint (14), and respectively tighten the fastening nuts (11) on both sides to adjust the templates (2) on both sides to be on the same plane.

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