Super-thick cast-in-place concrete shear wall corner formwork reinforcing device
By combining positioning columns and horizontal tie rods, the problem of reinforcing corner formwork of ultra-thick cast-in-place concrete shear walls was solved, achieving the effects of simplified installation, improved construction efficiency and quality.
Patent Information
- Application Number
- CN202423320638.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing technologies face challenges in reinforcing formwork at corners of ultra-thick cast-in-place concrete shear walls. These challenges include high drilling accuracy, complex installation, the need for multiple personnel to collaborate, high construction complexity and labor costs, and negative impacts on construction quality and efficiency.
The reinforcement method adopts a combination of positioning columns, horizontal tie rods and clamps. By precisely controlling the pre-embedded position and verticality of the positioning columns, and using clamps for reinforcement on one side, the drilling positioning accuracy requirements are simplified, the installation is easy, and the skill requirements for construction personnel are reduced.
It reduced the drilling positioning accuracy requirements, simplified the installation process, improved the template reinforcement accuracy and construction efficiency, ensured construction quality, and reduced the impact on the main reinforcement of the wall.
Smart Images
Figure CN223907846U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of building template technology especially to a super -thick cast -in -situ concrete shear wall corner template reinforcing device. BACKGROUND
[0002] In modern construction engineering, cast-in-situ concrete shear wall structure is widely used, especially in high-rise buildings and large industrial buildings and other projects, with the diversification of building functions and structural design, super-thick cast-in-situ concrete shear wall gradually increases. In the construction process of these shear walls, the corner part is the key and complex area, due to its special geometric shape and stress characteristics, the reinforcement of the corner template has always been a difficult problem in construction.
[0003] The traditional template reinforcement method has many deficiencies when dealing with super-thick cast-in-situ concrete shear wall corners. On the one hand, for super-thick walls, the lateral pressure generated during the concrete pouring process is extremely large, and the traditional reinforcement method may not be able to withstand such high-strength pressure, resulting in template deformation and displacement. For example, using a combination of ordinary tension bolts and steel pipe supports, local instability may occur at the corner of the super-thick wall due to uneven stress.
[0004] On the other hand, the template splicing and reinforcement of the corner part is difficult, because it is necessary to ensure that the two perpendicular templates can maintain accurate position and shape during pouring, and the traditional reinforcement method often cannot achieve convenient installation and disassembly while ensuring the stability of the two-direction template, which not only affects the construction efficiency, but also may affect the construction quality due to repeated adjustment of the template, such as poor concrete surface flatness, honeycomb and other defects at the corner.
[0005] When pouring super-thick shear walls in the construction industry, the corner template reinforcement method uses an ultra-long screw or reinforcement, which is specially customized according to the thickness of the super-thick shear wall, and its length must be able to penetrate the entire thickness of the shear wall and have enough length on both sides for installing nuts and other fixing devices. During installation, first, holes are drilled in the templates on both sides of the shear wall corner, the drilling position must be accurate to ensure that the screw can pass through smoothly, then the ultra-long screw is inserted through the holes, and washers and nuts are installed on the outside of the templates on both sides. When tightening the nuts, tools such as torque wrenches are used to tighten them according to the design torque value to ensure that the pre-tightening force of each screw is uniform.
[0006] The existing reinforcing technical method has many problems, for example, high drilling precision requirement, the position of drilling needs to be ensured to be very accurate so that the super long screw rod can pass through smoothly, the installation process is complex, multiple people need to cooperate to complete the installation process, and the perpendicularity and the levelness of the screw rod need to be ensured when the screw rod passes through the formwork and the nut is tightened, otherwise the reinforcing effect will be affected, which requires the construction personnel to have high construction experience and skills, and increases the complexity and the labor cost of construction. Practical new type content
[0007] In order to solve the problems existing in the prior art, the utility model provides a super-thick cast-in-situ concrete shear wall corner formwork reinforcing device.
[0008] The utility model provides a super-thick cast-in-situ concrete shear wall corner formwork reinforcing device adopts the following technical scheme:
[0009] A super-thick cast-in-situ concrete shear wall corner formwork reinforcing device, including the vertical preburied setting in the rectangular area between the outside formwork corner and the inside formwork corner's positioning column, the horizontal pull rod of vertical through setting in the outside formwork is fixedly connected on the positioning column, the horizontal pull rod is fixed on the outside of the outside formwork through the fixture, the opposite pull bolt is vertically through set between the outside formwork and the inside formwork, and the opposite pull bolt end is fixed on the outside of the outside formwork or the inside formwork through the fixture.
[0010] Through the above technical scheme, the horizontal and vertical position of the preburied positioning column is accurately controlled, one end of the horizontal pull rod is fixed on the preburied positioning column, only one side uses the fixture to reinforce, the drilling positioning precision requirement is significantly reduced, the installation process is simple, multiple people are not needed to cooperate, the work experience and skill level requirement of the operating personnel are also reduced, and the reinforcing quality of the formwork is ensured through only ensuring the horizontal and vertical degree of the fixture on one side, the formwork reinforcing period is effectively shortened, the formwork reinforcing precision is improved, the influence of the formwork reinforcing tie-in measure on the wall body main reinforcement is reduced, the shear wall construction quality is ensured, and the construction efficiency is improved.
[0011] Optionally, it also includes the preburied anchor, and the inclined diagonal pull rod is connected between the anchor and the positioning column.
[0012] Through the above technical scheme, the positioning column is further improved in stability by the horizontal holding effect of the inclined diagonal pull rod.
[0013] Optionally, it also includes the inclined diagonal support rod, and the top end of the inclined diagonal support rod is supported on the outside of the outside formwork.
[0014] Through the above technical scheme, the outside formwork is further improved in stability by the horizontal support effect of the inclined diagonal support rod.
[0015] Optionally, the positioning columns are arranged in several groups extending from the corner point of the outer formwork to the corner point of the inner formwork, and each group comprises a plurality of positioning columns arranged in a matrix.
[0016] By adopting the above technical scheme, the plurality of positioning columns in the plurality of groups form a continuous reinforcing system, and the system has high structural stability, thereby effectively ensuring the holding and supporting effect on the outer formwork.
[0017] Optionally, the horizontal pull rod gradually increases in spacing from bottom to top in the vertical direction.
[0018] By adopting the above technical scheme, the stability and strength between the outer formwork and the inner formwork are improved.
[0019] Optionally, a tension bolt is arranged between the two outer formworks perpendicular to each other, and the end of the tension bolt is fixed to the outer side of the outer formwork by a clamp.
[0020] By adopting the above technical scheme, the stability and strength of the corner of the outer formwork are improved.
[0021] Optionally, the positioning column is a channel steel, an I-beam or an H-shaped steel.
[0022] By adopting the above technical scheme, the channel steel, the I-beam or the H-shaped steel is convenient to obtain and has good mechanical properties.
[0023] Optionally, the anchoring member is a T-shaped steel bar.
[0024] By adopting the above technical scheme, the T-shaped steel bar is convenient to process and pre-bury.
[0025] In summary, the utility model has at least one of the following beneficial technical effects:
[0026] 1. By accurately controlling the horizontal and vertical positions and perpendicularity of the pre-buried positioning columns, fixing one end of the horizontal pull rod on the pre-buried positioning column, and using the clamp for reinforcement on one side only, the requirement for drilling and positioning accuracy is significantly reduced, the installation process is simple, no one needs to cooperate, the requirement for the work experience and skill level of the operating personnel is also reduced.
[0027] 2. Since the clamp is reinforced on one side only, the clamp levelness and perpendicularity on the reinforced side can ensure the reinforcement quality of the formwork, effectively shorten the formwork reinforcement period, improve the formwork reinforcement accuracy, reduce the influence of the formwork reinforcement and connection measures on the main reinforcement of the wall, ensure the construction quality of the shear wall, and improve the construction efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 is a top view of the super-thick cast-in-place concrete shear wall corner formwork reinforcing device of the utility model embodiment.
[0029] Figure 2 is Figure 1 is a sectional view along A-A in Fig.
[0030] BRIEF DESCRIPTION OF DRAWINGS 1, concrete raft; 2, concrete guide wall; 3, outer formwork; 4, inner formwork; 5, secondary keel; 6, primary keel; 7, counter-bolt; 8, clamp; 9, positioning column; 10, horizontal pull rod; 11, anchoring piece; 12, oblique pull rod; 13, oblique support rod. DETAILED DESCRIPTION
[0031] The utility model is further explained in detail as follows. Figure 1 - the drawings Figure 2 The utility model is further explained in detail as follows.
[0032] The utility model discloses an extra-thick cast-in-situ concrete shear wall corner formwork reinforcing device. Referring to Figure 1 and Figure 2 , the extra-thick cast-in-situ concrete shear wall corner formwork reinforcing device is arranged on the concrete raft 1 and the concrete guide wall 2. The reinforcing device comprises the outer formwork 3 and the inner formwork 4 located at the corner, and the outer formwork 3 and the inner formwork 4 are provided with the secondary keel 5 and the primary keel 6 on the opposite sides, the secondary keel 5 is made of a wooden frame, the primary keel 6 is made of double steel pipes, the counter-bolt 7 is vertically arranged between the outer formwork 3 and the inner formwork 4, and the counter-bolt 7 is fixed on the primary keel 6 through the clamp 8.
[0033] Referring to Figure 1 and Figure 2 , a plurality of positioning columns 9 are vertically arranged in the rectangular area between the corner of the outer formwork 3 and the corner of the inner formwork 4, and the positioning columns 9 are pre-buried in the concrete raft 1 and the concrete guide wall 2; in the embodiment, the positioning columns 9 are made of channel steel, and in other embodiments, the positioning columns 9 can also be made of I-beam or H-beam. The positioning columns 9 are provided with two groups, each group comprising four positioning columns 9 arranged in a matrix, and the two groups of positioning columns 9 are arranged and extended from the corner of the outer formwork 3 to the corner of the inner formwork 4, forming a continuous reinforcing system.
[0034] Referring to Figure 1 and Figure 2 , the horizontal pull rod 10 is welded and fixed between the outer formwork 3 and any two horizontally or vertically adjacent positioning columns 9 in each group, the horizontal pull rod 10 is vertically arranged in the outer formwork 3 and fixed on the primary keel 6 through the clamp 8, the lowermost horizontal pull rod 10 is pre-buried in the concrete guide wall 2, and the plurality of horizontal pull rods 10 in the same vertical plane gradually increase in spacing from bottom to top.
[0035] Referring to Figure 1 and Figure 2The anchor 11 is T-shaped steel bar in the embodiment, and the oblique pull rod 12 is welded between the anchor 11 and the adjacent positioning column 9, and the inclination angles of the oblique pull rods 12 in the same vertical plane are 45° and 60° respectively.
[0036] Compared with the prior art, the channel steel can be conveniently connected with other structural members, such as welded with a steel reinforcement framework or connected with a tensioning screw rod, etc. This connection mode enables the reinforcement of the shear wall corner formwork and the construction of the whole structure to be better coordinated, and improves the construction efficiency and quality. The supporting effect of the channel steel can reduce the deformation of the formwork, further reduces the risk of concrete cracks, and improves the durability of the concrete and the safety of the structure.
[0037] By precisely controlling the horizontal and vertical positions of the channel steel pre-buried, the horizontal pull rod 10 is welded on the pre-buried channel steel at one end, only one side of the fixture 8 is used for reinforcement, the drilling positioning precision requirement is significantly reduced, the installation process is simple, no one is needed to cooperate, the work experience and skill level requirement of the operating personnel are also reduced, and since the reinforcement of the fixture 8 on one side, only the horizontal and vertical degrees of the fixture 8 on the reinforced side are guaranteed to ensure the reinforcement quality of the formwork, the formwork reinforcement period is effectively shortened, the formwork reinforcement precision is improved, the influence of the formwork reinforcement and connection measures on the main reinforcement of the wall is reduced, the shear wall construction quality is ensured, and the construction efficiency is improved.
[0038] The above are preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.
Claims
1. A super-thick cast-in-situ concrete shear wall corner formwork reinforcement device, characterized in that: The positioning column (9) is vertically embedded in the rectangular area between the corner of the outer formwork (3) and the corner of the inner formwork (4), and a horizontal pull rod (10) vertically penetrating the outer formwork (3) is fixed on the positioning column (9), the horizontal pull rod (10) is fixed on the outer side of the outer formwork (3) through a clamp (8), a counter bolt (7) vertically penetrating between the outer formwork (3) and the inner formwork (4) is arranged, and the end of the counter bolt (7) is fixed on the outer side of the outer formwork (3) or the inner formwork (4) through the clamp (8).
2. The super-thick cast-in-place concrete shear wall corner formwork reinforcing device according to claim 1, characterized in that: The anchor (11) is embedded, and the inclined pull rod (12) is connected between the anchor (11) and the positioning column (9).
3. The super-thick cast-in-place concrete shear wall corner formwork reinforcing device according to claim 1, characterized in that: The inclined support rod (13) is arranged obliquely, and the top end of the inclined support rod (13) is supported on the outer side of the outer formwork (3).
4. The ultra-thick cast-in-place concrete shear wall corner formwork reinforcement device according to any one of claims 1-3, characterized in that: The positioning column (9) is arranged in several groups from the corner point of the outer formwork (3) to the corner point of the inner formwork (4), each group includes a plurality of positioning columns (9) arranged in a matrix, and the horizontal pull rod (10) is connected to the plurality of positioning columns (9) adjacent horizontally or vertically in each group.
5. The super-thick cast-in-place concrete shear wall corner formwork reinforcing device according to claim 4, characterized in that: The horizontal pull rod (10) gradually increases in spacing from bottom to top in the vertical direction.
6. The super-thick cast-in-place concrete shear wall corner formwork reinforcing device according to claim 4, characterized in that: The counter bolt (7) is arranged between the two outer formworks (3) perpendicular to each other, and the end of the counter bolt (7) is fixed on the outer side of the outer formwork (3) through the clamp (8).
7. The super-thick cast-in-place concrete shear wall corner formwork reinforcing device according to claim 4, characterized in that: The positioning column (9) is a channel steel, an I-beam or an H-shaped steel.
8. The super-thick cast-in-place concrete shear wall corner formwork reinforcing device according to claim 4, characterized in that: The anchor (11) is a T-shaped steel bar.