Formwork construction structure of deformation joint shear wall

Abstract

The utility model discloses a template construction structure of a deformation joint shear wall, which adopts a first pull rod and a second pull rod which are in threaded connection to form an opposite-pull component, the opposite-pull component plays a role similar to that of a traditional opposite-pull screw rod, and the first pull rod and the second pull rod can be separated, so that the opposite-pull component does not deform in the installation process. No large-size part needs to penetrate through the first formwork and the second formwork, the size of the through holes needed in the first formwork and the second formwork only needs to be matched with the diameter of the rod section of the first pull rod or the diameter of the rod section of the second pull rod, and therefore it is avoided that large holes are formed in the shear wall obtained through pouring; the problem that an existing deformation joint shear wall is large in construction difficulty can be effectively solved, and the effects of improving the construction speed and improving the construction quality are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction tools, and in particular relates to a template construction structure of a deformation joint shear wall. Background Art

[0002] Shear walls and frame shear wall structures are widely used in high-rise and super-high-rise buildings. Due to the large volume of high-rise and super-high-rise buildings, in order to meet the requirements of earthquake-resistant deformation and anti-settlement, expansion joints need to be set between two adjacent building units; but because the expansion joints are relatively narrow, their width is generally around 20cm, which makes it difficult to support and remove the formwork near the expansion joints during shear wall construction. At present, expansion joint shear walls are mostly constructed in staggered layers, that is, two building units are constructed alternately, which not only leads to slow construction, but also fills the expansion joints with foam boards or formwork boxes made of waste formworks, which has problems such as easy deformation of foam boards, difficulty in fixing, difficulty in removing foam boards and formwork boxes, and easy generation of foam chips falling into the wall roots during the removal process, which is easy to cause quality risks.

[0003] Chinese patent CN220521953U discloses a shear wall formwork reinforcement device at a deformation joint. The scheme is to set an annular portion at one end of the tension screw. During construction, the annular portion passes through the two formworks to the deformation joint, and the vertical back ribs close to the deformation joint formwork vertically pass through multiple annular portions, and then a nut is set at the other end of the tension screw to achieve tension and fixation of the formworks on both sides; but a larger opening needs to be reserved on the formwork for the annular portion to pass through. Correspondingly, in order to avoid leakage during pouring, the size of the PVC wall sleeve mounted outside the tension screw is also larger, which results in larger holes formed on the shear wall obtained by pouring than in ordinary construction, which is not only easy to affect the structural strength of the wall, but also the subsequent repair workload is large. Chinese patent CN116657889A discloses a method for fixing the formwork of a shear wall to be cast at a deformation joint position. The scheme is to use a steel wire rope to form a ring-shaped portion. Since the ring-shaped portion can be deformed and contracted under pressure, there is no need to reserve a large opening on the formwork, thereby avoiding the formation of large holes in the cast shear wall. However, the ring-shaped portion is easily unable to recover after being deformed through the formwork, resulting in the difficulty of vertical back ribs to pass through, especially after the elasticity of the ring-shaped portion has deteriorated due to repeated use.

[0004] Therefore, it is necessary to design a template structure for deformation joint shear wall construction that is relatively simple to install and disassemble and has good reliability, so as to reduce the construction difficulty of the deformation joint shear wall and improve the construction speed and quality. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a template construction structure for a deformation joint shear wall, so as to solve the technical problem that the deformation joint shear wall construction is difficult and to achieve the effect of improving the construction speed and quality.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A formwork construction structure for a deformation joint shear wall comprises a first formwork vertically arranged in the deformation joint, the first formwork is parallel to and abuts against the outer edge of a beam slab near the deformation joint, a second formwork parallel to and facing the first formwork is arranged on the beam slab, a plurality of vertically distributed transverse back ribs are respectively connected to the outer sides of the first formwork and the second formwork, a plurality of transversely distributed vertical back ribs are abutted against the outer sides of the plurality of transverse back ribs; the vertical back ribs on the outer side of the first formwork are opposite to the vertical back ribs on the outer side of the second formwork one by one, a tensioning assembly is arranged between every two opposite vertical back ribs, and the tensioning assembly comprises a movable A first pull rod is inserted through the first template and a second pull rod is movably inserted through the second template, the inner ends of the first pull rod and the second pull rod are horizontally opposite and threadedly connected, and the inner end of the first pull rod does not protrude from the inner side surface of the first template, the outer end of the first pull rod is connected with a pull ring, and the pull ring is movably sleeved on the vertical back rib on the outer side of the first template, and the outer end of the second pull rod is detachably connected with an abutment portion, and the abutment portion abuts against the outer side of the vertical back rib on the outer side of the second template; the pulling assembly also includes a wall sleeve abutted between the first template and the second template, and the wall sleeve is sleeved on the second pull rod.

[0008] Furthermore, a connecting sleeve is provided between the first pull rod and the second pull rod, the connecting sleeve has an internal thread, the inner ends of the first pull rod and the second pull rod are respectively provided with external threads, and the inner ends of the first pull rod and the second pull rod are respectively threadedly connected in the connecting sleeve; the first template and the second template are respectively provided with through holes for the first pull rod and the second pull rod to pass through, the outer diameter of the connecting sleeve matches the diameter of the through hole on the first template, and the connecting sleeve is located in the through hole on the first template and does not protrude from the inner side surface of the first template.

[0009] Furthermore, the upper ends of the first formwork and its outer vertical back ribs are higher than the upper end of the shear wall to be cast, and a plurality of tension components are provided between every two opposite vertical back ribs. The plurality of tension components are vertically distributed and lower than the upper end of the shear wall to be cast. The first formwork is higher than the shear wall to be cast and corresponds to each vertical back rib and is further provided with at least one first tie rod. The inner end of the first tie rod higher than the upper end of the shear wall to be cast is connected to a mounting bolt through a connecting sleeve, and the head of the mounting bolt abuts against the inner side surface of the first formwork.

[0010] Furthermore, a positioning portion is detachably provided on the vertical back ribs on the outer side of the first template, and the positioning portion abuts against the upper surface of any horizontal back rib on the outer side of the first template.

[0011] Furthermore, the positioning part includes a circular or elliptical positioning plate, an eccentric hole is penetrated through the positioning plate, a threaded hole connected to the eccentric hole is opened on one side of the positioning plate, and a positioning bolt is threadedly connected to the threaded hole; the positioning plate is sleeved on the vertical back rib outside the first template through the eccentric hole, and the vertical back ribs are tightly abutted against the rod of the positioning bolt and the inner wall of the eccentric hole respectively, and the side of the positioning plate away from the eccentric hole is close to the first template, and the positioning plate abuts against the upper surface of any horizontal back rib on the outside of the first template.

[0012] Furthermore, the second tie rod has an external thread on the rod section outside the second template, and the abutment portion includes an abutment nut threadedly connected to the second tie rod, an abutment plate is abutted between the abutment nut and the vertical back rib, and the abutment plate is movably sleeved on the second tie rod.

[0013] Furthermore, there are two vertical back ribs on the outside of the second template opposite to each vertical back rib on the outside of the first template. In the corresponding pulling assembly, the second pulling rod extends from between the two vertical back ribs, and two recessed portions are laterally spaced apart on the inner side surface of the abutment plate, and the two vertical back ribs are respectively located in the two recessed portions.

[0014] Furthermore, the outer sides of the plurality of transverse back ribs are also connected to a plurality of transversely distributed vertical reinforcing rods, and the vertical reinforcing rods and the vertical back ribs are alternately arranged in the transverse direction.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. In the formwork construction structure of the deformation joint shear wall described in the utility model, a first tie rod and a second tie rod connected by thread are used to form a tension assembly, which plays a similar role to the traditional tension screw. Since the first tie rod and the second tie rod are separable, during the installation of the tension assembly, no large-sized parts need to pass through the first template and the second template. The size of the through hole required on the first template and the second template only needs to be compatible with the rod section diameter of the first tie rod or the second tie rod, thereby avoiding the formation of large holes in the cast shear wall. The problem of the current deformation joint shear wall construction difficulty can be effectively solved, and the effect of improving construction speed and construction quality can be achieved.

[0017] 2. In the formwork construction structure of the deformation joint shear wall described in the utility model, the first tie rod and the second tie rod are connected by a connecting sleeve provided with an internal thread, which is beneficial to ensuring its structural strength; the connecting sleeve is located in the through hole on the first formwork and does not extend between the first formwork and the second formwork. After pouring is completed, since the connecting sleeve and the first tie rod are not in the cast shear wall, the outer formwork assembly can be directly removed without moving it away from the second formwork, so that the formwork construction structure can be suitable for the construction of narrower deformation joint shear walls, which is beneficial to improving the practicability of the formwork construction structure of the deformation joint shear wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the template construction structure described in the embodiment;

[0019] Figure 2 It is a schematic diagram of the outer side surface of the second template in the template construction structure described in the embodiment;

[0020] Figure 3 It is a schematic diagram of the outer side surface of the first template in the template construction structure described in the embodiment;

[0021] Figure 4 is a schematic structural diagram of the first pull rod in the embodiment;

[0022] Figure 5 This is a schematic diagram of the structure in which the second pull rod is connected to the first pull rod in the embodiment;

[0023] Figure 6 is a schematic structural diagram of the positioning portion described in the embodiment;

[0024] Figure 7 is a structural schematic diagram of the abutment portion described in the embodiment;

[0025] Among them, there are expansion joint 1, first formwork 2, beam and slab 3, second formwork 4, horizontal back rib 5, vertical back rib 6, first tie rod 7, second tie rod 8, pull ring 9, abutment part 10, abutment nut 101, abutment plate 102, steel cage 12, connecting sleeve 13, mounting bolt 14, positioning part 15, positioning plate 151, positioning bolt 152, and vertical reinforcement rod 16. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0027] Example:

[0028] See also Figure 1 , Figure 2 and Figure 3A formwork construction structure of a deformation joint shear wall comprises a first formwork 2 vertically arranged in a deformation joint 1, the first formwork 2 is parallel to and abuts against the outer edge of a beam slab 3 near the deformation joint 1, a second formwork 4 parallel to and opposite to the first formwork 2 is arranged on the beam slab 3, a plurality of vertically distributed transverse back ribs 5 are respectively connected to the outer sides of the first formwork 2 and the second formwork 4, a plurality of transversely distributed vertical back ribs 6 are abutted against the outer sides of the plurality of transverse back ribs 5; the vertical back ribs 6 on the outer side of the first formwork 2 are opposite to the vertical back ribs 6 on the outer side of the second formwork 4 one by one, a tensioning assembly is arranged between every two opposite vertical back ribs 6, and the tensioning assembly comprises a movable threaded assembly on the first formwork 2 The first tie rod 7 and the second tie rod 8 movably inserted on the second template 4, the inner ends of the first tie rod 7 and the second tie rod 8 are transversely opposite and threadedly connected, and the inner end of the first tie rod 7 is located in the first template 2, that is, it does not extend between the first template 2 and the second template 4, the outer end of the first tie rod 7 is connected with a pull ring 9, the pull ring 9 is movably sleeved on the vertical back rib 6 on the outer side of the first template 2, and the outer end of the second tie rod 8 is detachably connected with an abutment portion 10, and the abutment portion 10 abuts against the outer side of the vertical back rib 6 on the outer side of the second template 4; the tensioning assembly also includes a wall sleeve abutting between the first template 2 and the second template 4, and the wall sleeve is sleeved on the second tie rod 8;

[0029] In this embodiment, the horizontal back rib 5 is a wooden square arranged along the length direction of the corresponding template and fixed to the outside of the corresponding template by nails. The vertical back rib 6 is made of steel pipe and the outer diameter matches the inner diameter of the pull ring 9 to reduce shaking; the first template 2 and the second template 4 are respectively provided with through holes for the first tie rod 7 and the second tie rod 8 to pass through, and a casting cavity for casting and forming the shear wall is formed between the first template 2 and the second template 4, and a steel cage 12 is set in the casting cavity; the wall sleeve is used to connect the through holes on the first template 2 and the second template 4, the second tie rod 8 and the casting cavity Separated to avoid leakage of concrete mixture from the through hole during pouring and to facilitate removal of the second tie rod 8 after pouring is completed; during implementation, if the upper beam slab has been cast, after the first formwork 2 is in contact with the upper and lower beams, the entire formwork structure remains stable; if the upper beam slab has not been cast, the first formwork 2 can be connected with the formwork used for casting the upper beam slab, or a diagonal support or other supporting structure can be set between the outer side of the first formwork 2 and the beam slab 3, or the formwork construction structure can be directly stabilized by a lifting mechanism to avoid the entire formwork construction structure from tipping toward the deformation joint 1 side.

[0030] The formwork construction structure of the deformation joint shear wall described in the utility model, during construction, firstly, a first tie rod 7 is passed through the through hole on the first formwork 2 connected with the horizontal back rib 5, and a vertical back rib 6 is inserted into the pull ring 9 of the first tie rod 7 to obtain an outer formwork assembly; then, the outer formwork assembly is hoisted into the deformation joint 1, and the first formwork 2 is made parallel to and abutted against the outer edge of the beam slab 3; the structure and position of the outer formwork assembly are kept stable, and the second tie rod 8 is threadedly connected to the inner end of the first tie rod 7 and inserted into the wall sleeve; then, the second formwork 4 is erected on the beam slab 3, and the second tie rod 8 passes through the second formwork 4; a vertical back rib 6 and an abutting portion 10 are arranged outside the second formwork 4; a casting cavity is formed between the first formwork 2 and the second formwork 4, and a concrete mixture is poured and solidified to obtain a shear wall; after the casting construction is completed, the second tie rod 8 is loosened and pulled out, and then the second formwork 4 is removed, and finally the outer formwork assembly is moved out of the deformation joint 1.

[0031] The formwork construction structure of the deformation joint shear wall described in the utility model adopts a first tie rod 7 and a second tie rod 8 which are threadedly connected to form a tension assembly, which plays a similar role to the traditional tension screw rod. Since the first tie rod 7 and the second tie rod 8 are separable, during the installation of the tension assembly, there is no large-sized part that needs to pass through the first template 2 and the second template 4. The required through-hole size on the first template 2 and the second template 4 only needs to be compatible with the rod segment diameter of the first tie rod 7 or the second tie rod 8, thereby avoiding the formation of large holes in the cast shear wall, which can effectively solve the current problem of the difficulty of deformation joint shear wall construction and achieve the effect of improving construction speed and construction quality. In addition, the inner end of the first tie rod 7 does not extend into the casting cavity. After the casting is completed and the second tie rod 8 is removed, the outer formwork assembly can be directly lifted out vertically or horizontally along the deformation joint 1 without moving in the width direction of the deformation joint 1, so that the formwork construction structure can be suitable for the construction of narrower deformation joint shear walls, which is beneficial to improving the practicality of the formwork construction structure.

[0032] See also Figure 1 , Figure 4 and Figure 5 A connecting sleeve 13 is provided between the first tie rod 7 and the second tie rod 8, and the connecting sleeve 13 has an internal thread. The inner ends of the first tie rod 7 and the second tie rod 8 are respectively provided with external threads, and the inner ends of the first tie rod 7 and the second tie rod 8 are respectively threadedly connected in the connecting sleeve 13; through holes for the first tie rod 7 and the second tie rod 8 to pass through are respectively opened on the first template 2 and the second template 4, and the outer diameter of the connecting sleeve 13 matches the diameter of the through hole on the first template 2, and the connecting sleeve 13 is located in the through hole on the first template 2 and does not extend between the first template 2 and the second template 4;

[0033] In this way, the first tie rod 7 and the second tie rod 8 are both external threads, which is beneficial to improving the structural strength of the connection and the tension assembly compared to separately processing the internal thread and the external thread on the first tie rod 7 and the second tie rod 8 to achieve threaded connection; after pouring is completed, since the connecting sleeve 13 and the first tie rod 7 are not in the cast shear wall, the outer formwork assembly can be directly removed without moving it away from the second formwork 4, so that the formwork construction structure can be suitable for the construction of narrower deformation joint shear walls, which is beneficial to improving the practicability of the formwork construction structure of the deformation joint shear wall.

[0034] During implementation, in order to ensure that the first tie rod 7 does not separate from the first template 2 when the assembled outer template assembly is hoisted into the deformation joint 1, the second tie rod 8 is subsequently installed, and it is removed after pouring, the connecting sleeve 13 can be fixed in the through hole on the first template 2; this embodiment adopts another structural form, see Figure 1 , Figure 2 and Figure 3 The upper ends of the first formwork 2 and its outer vertical back ribs 6 are higher than the upper end of the shear wall to be cast, and a plurality of tension components are arranged between every two opposite vertical back ribs 6. The plurality of tension components are vertically distributed and lower than the upper end of the shear wall to be cast. The first formwork 2 is higher than the shear wall to be cast and corresponds to each vertical back rib 6 and is further provided with at least one first tie rod 7. The inner end of the first tie rod 7 higher than the upper end of the shear wall to be cast is connected to a mounting bolt 14 through a connecting sleeve 13, and the head of the mounting bolt 14 abuts against the inner side surface of the first formwork 2. In this way, by installing The bolts 14, the first tie rod 7 and the pull ring 9 tighten and fix the first formwork 2 and the outer vertical back rib 6, thereby ensuring that the outer formwork assembly maintains structural stability during lifting and installation operations; in addition, when assembling the outer formwork assembly during construction, in addition to setting mounting bolts 14 on the connecting sleeve 13 that is higher than the upper end of the shear wall to be cast, mounting bolts 14 can also be temporarily set on the remaining connecting sleeves 13, and these mounting bolts 14 can be removed after lifting into place, and then the second tie rod 8 can be installed, thereby further improving the stability of the outer formwork assembly structure during lifting.

[0035] See also Figure 1, a detachable positioning portion 15 is provided on the vertical back rib 6 on the outside of the first template 2, and the positioning portion 15 abuts against any horizontal back rib 5 on the outside of the first template 2; in this way, the vertical back rib 6 outside the first template 2 is abutted and supported on the horizontal back rib 5 through the positioning portion 15. In the process of lifting the outer template assembly and the subsequent installation of the second template 4, it is only necessary to lift the first template 2, so that the template construction structure is simpler and easier to use. In addition, under the action of its own gravity, the vertical back rib 6 outside the first template 2 makes the positioning portion 15 and the horizontal back rib 5 tightly abut, and the two have a large static friction force, which cooperates with the upper mounting bolts 14 to further improve the reliability of the vertical back rib 6 and the first template 2 in the subsequent installation and removal of the outer template assembly. In addition, after the pouring is completed, when removing the outer template assembly, the mounting nut 14 can be unscrewed first, and the vertical back rib is appropriately moved outward to disengage the connecting sleeve 13 from the first template 2, and the vertical back rib 6 and the first pull rod 7 connected thereto by the pull ring 9 are removed, and then the first template 2 is removed.

[0036] See also Figure 1 and Figure 6 The specific structure of the positioning part 15 is as follows: the positioning part 15 includes a circular or elliptical positioning plate 151, an eccentric hole is penetrated on the positioning plate 151, a threaded hole connected to the eccentric hole is opened on one side of the positioning plate 151, and a positioning bolt 152 is threadedly connected in the threaded hole; the positioning plate 151 is sleeved on the vertical back rib 6 outside the first template 2 through the eccentric hole, and the vertical back rib 6 is tightly abutted against the rod of the positioning bolt 152 and the inner wall of the eccentric hole respectively, and the side of the positioning plate 151 away from the eccentric hole is close to the first template 2, and the positioning plate 151 is connected to the upper side of any horizontal back rib 6 outside the first template 2. Surface abutment; in this way, an eccentric hole is set on the positioning plate 151 for the vertical back rib 6 to pass through. As mentioned above, after the pouring is completed, the mounting nut 14 is first unscrewed. When the vertical back rib 6 is to be removed, the vertical back rib 6 can be rotated to make the side of the positioning plate 151 away from the eccentric hole away from the first template 2, and then a force is applied to the vertical back rib 6 in the direction away from the first template 2, so that the connecting sleeve 13 is separated from the first template 2, and the positioning plate 151 is separated from the abutted horizontal back rib 6, so that the vertical back rib 6 can be smoothly removed, and then the first template 2 is removed, making the dismantling more orderly and helping to reduce the difficulty of use.

[0037] See also Figure 7 The second tie rod 8 has an external thread on the rod section outside the second template 4, and the abutment portion 10 includes an abutment nut 101 threadedly connected to the second tie rod 8, and an abutment plate 102 is abutted between the abutment nut 101 and the vertical back rib 6, and the abutment plate 102 is movably sleeved on the second tie rod 8; specifically, as Figure 2 and Figure 7As shown, there are two vertical back ribs 6 on the outside of the second template 4 opposite to each vertical back rib 6 on the outside of the first template 2. In the corresponding pulling assembly, the second pull rod 8 extends from between the two vertical back ribs 6. Two recessed portions are laterally spaced apart on the inner side surface of the abutment plate 102, and the two vertical back ribs 6 are respectively located in the two recessed portions; in this way, the abutment plate 102 abuts against the two vertical back ribs 6 on both sides of the second pull rod 8, so that the force is more balanced. In addition, the recessed portions have the function of limiting and installing the vertical back ribs 6, which can not only prevent structural failure due to abutment slippage, but also help to reduce the difficulty of installation.

[0038] See also Figure 2 and Figure 3 The outer sides of the plurality of transverse back ribs 5 are also connected to a plurality of transversely distributed vertical reinforcing rods 16, and the vertical reinforcing rods 16 and the vertical back ribs 6 are alternately arranged in the transverse direction. In this embodiment, the vertical reinforcing rods 16 are fixed to the transverse back ribs 5 on the outer side of the corresponding formwork by nails; in this way, all the transverse back ribs 5 are connected together by the vertical reinforcing rods 16, which is beneficial to improve the structural strength of the outer formwork assembly.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the technical solution. Ordinary technicians in this field should understand that those modifications or equivalent replacements of the technical solution of the utility model without departing from the purpose and scope of the technical solution should be included in the scope of the claims of the utility model.

Claims

1. A formwork construction structure for a deformation joint shear wall, characterized in that: The first and second templates are provided with a second template parallel to the first template, and the outer sides of the first and second templates are respectively connected with a plurality of vertically distributed transverse ribs, and the outer sides of the plurality of transverse ribs are abutted with a plurality of transversely distributed vertical ribs; the vertical ribs on the outer side of the first template are opposite to the vertical ribs on the outer side of the second template one by one, and a tensioning assembly is provided between every two opposite vertical ribs, the tensioning assembly includes a first pull rod movably inserted on the first template and a second pull rod movably inserted on the second template, the inner ends of the first and second pull rods are horizontally opposite and threadedly connected, and the inner end of the first pull rod does not protrude from the inner side surface of the first template, the outer end of the first pull rod is connected with a pull ring, the pull ring is movably sleeved on the vertical ribs on the outer side of the first template, the outer end of the second pull rod is detachably connected with an abutment portion, and the abutment portion abuts against the outer side of the vertical ribs on the outer side of the second template; the tensioning assembly also includes a wall sleeve abutted between the first template and the second template, and the wall sleeve is sleeved on the second pull rod.

2. The formwork construction structure of a deformation joint shear wall according to claim 1, characterized in that: A connecting sleeve is provided between the first pull rod and the second pull rod, and the connecting sleeve has an internal thread. The inner ends of the first pull rod and the second pull rod are respectively provided with external threads, and the inner ends of the first pull rod and the second pull rod are respectively threadedly connected in the connecting sleeve; the first template and the second template are respectively provided with through holes for the first pull rod and the second pull rod to pass through, and the outer diameter of the connecting sleeve matches the diameter of the through hole on the first template, and the connecting sleeve is located in the through hole on the first template and does not protrude from the inner side surface of the first template.

3. The formwork construction structure of a deformation joint shear wall according to claim 2 is characterized in that: The upper ends of the first formwork and its outer vertical back ribs are higher than the upper end of the shear wall to be cast. A plurality of tension components are arranged between every two opposite vertical back ribs. The plurality of tension components are vertically distributed and lower than the upper end of the shear wall to be cast. At least one first tie rod is further arranged on the first formwork above the shear wall to be cast corresponding to each vertical back rib. The inner end of the first tie rod above the upper end of the shear wall to be cast is connected with a mounting bolt through a connecting sleeve, and the head of the mounting bolt abuts against the inner side surface of the first formwork.

4. The formwork construction structure of a deformation joint shear wall according to claim 2, characterized in that: A positioning part is detachably provided on the vertical back ribs on the outer side of the first template, and the positioning part abuts against the upper surface of any horizontal back rib on the outer side of the first template.

5. The formwork construction structure of a deformation joint shear wall according to claim 4, characterized in that: The positioning part includes a circular or elliptical positioning plate, an eccentric hole is penetrated through the positioning plate, a threaded hole connected to the eccentric hole is opened on one side of the positioning plate, and a positioning bolt is threadedly connected to the threaded hole; the positioning plate is sleeved on the vertical back rib outside the first template through the eccentric hole, and the vertical back ribs are tightly abutted against the rod of the positioning bolt and the inner wall of the eccentric hole respectively, and the side of the positioning plate away from the eccentric hole is close to the first template, and the positioning plate is abutted against the upper surface of any horizontal back rib on the outside of the first template.

6. The formwork construction structure of a deformation joint shear wall according to claim 1, characterized in that: The second tie rod has an external thread on the rod section outside the second template. The abutment portion includes an abutment nut threadedly connected to the second tie rod. An abutment plate is abutted between the abutment nut and the vertical back rib, and the abutment plate is movably sleeved on the second tie rod.

7. The formwork construction structure of a deformation joint shear wall according to claim 6, characterized in that: There are two vertical back ribs on the outside of the second template opposite to each vertical back rib on the outside of the first template. In the corresponding pulling assembly, the second pulling rod extends from between the two vertical back ribs, and two recessed portions are horizontally spaced apart on the inner side surface of the abutment plate, and the two vertical back ribs are respectively located in the two recessed portions.

8. The formwork construction structure of a deformation joint shear wall according to claim 1, characterized in that: The outer sides of the plurality of transverse back ribs are also connected to a plurality of transversely distributed vertical reinforcing rods, and the vertical reinforcing rods and the vertical back ribs are alternately arranged in the transverse direction.

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