Prefabricated pc component side formwork reinforcing structure
Patent Information
- Application Number
- CN202522328388.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-03
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-11-03
AI Technical Summary
[0002]在装配式建筑施工中,PC 构件侧面支模加固是现浇节点成型的关键环节,传统支模结构常存在定位精度低、拉结稳定性不足、支撑体系受力分散、接缝密封不严密易漏浆、模板抗变形能力弱等问题,导致节点浇筑质量参差不齐、施工效率低下,且易引发安全隐患,难以满足装配式建筑对施工精度、稳定性及成型质量的高要求,因此亟需一种定位精准、拉结稳固、密封可靠、支撑高效的装配式 PC 构件侧面支模加固结构,以解决现有技术痛点
1、与现有技术相比,通过设置膨胀拴的组合,先将套筒预设于 PC 构件的定位槽内,再使第一螺杆贯穿模板与套筒螺纹连接,利用芯头膨胀锚固配合螺母紧固,实现了 PC构件与模板的精准定位和刚性拉结,有效提升了模板安装的定位精度和抗位移能力。
Smart Images

Figure CN224769818U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of prefabricated PC formwork reinforcement technology, and in particular to a side formwork reinforcement structure for prefabricated PC components. Background Technology
[0002] In prefabricated building construction, the side formwork reinforcement of PC components is a key step in the formation of cast-in-place joints. Traditional formwork structures often suffer from problems such as low positioning accuracy, insufficient tie stability, dispersed stress in the support system, poor joint sealing leading to grout leakage, and weak formwork deformation resistance. This results in inconsistent joint casting quality, low construction efficiency, and potential safety hazards, making it difficult to meet the high requirements of prefabricated buildings for construction accuracy, stability, and forming quality. Therefore, there is an urgent need for a prefabricated PC component side formwork reinforcement structure that is precise in positioning, stable in tie, reliable in sealing, and efficient in support to solve the pain points of existing technologies.
[0003] Traditional prefabricated PC component side formwork reinforcement structures have poor stability of formwork ties, weak stress distribution capacity of the support system, and poor joint sealing that easily leads to grout leakage, making it difficult to effectively guarantee construction stability. Utility Model Content
[0004] The purpose of this utility model is to provide a side formwork reinforcement structure for prefabricated PC components. This structure can efficiently disperse the lateral pressure of concrete through a multi-dimensional support system, thereby improving the pouring quality and construction stability of prefabricated joints.
[0005] To achieve the above objectives, a side formwork reinforcement structure for prefabricated PC components is provided, including PC components and templates. Two templates are fixedly installed on both sides of the two PC components, and a gap is reserved between the two PC components. The inner sides of the two templates are closed with the gap to form a casting cavity. A fixing plate is fixedly installed on one side of the template, and a fixing groove is fixedly installed on the surface of the fixing plate. Several positioning grooves are fixedly installed on the surfaces of both sides of the two PC components. The same number of sleeves are fixedly installed inside the several positioning grooves. A first screw is threaded inside the several sleeves. A core head is fixedly installed at one end of the first screw, and a flat washer and a spring washer are installed at the other end of the first screw. A No. 1 nut is threaded on the first screw. Two main columns are fixedly installed in the middle of the inner wall of the two templates. Both main columns are made of high-strength alloy material, have a rectangular cross-section and built-in reinforcing ribs. Several support rods are evenly arranged on both sides of the two main columns. The support rods are made of solid steel rods and are rigidly fixed to the main columns by welding at one end.
[0006] According to the prefabricated PC component side support reinforcement structure, several limiting grooves are fixedly provided on the surfaces of the two PC components. Several second screws are threadedly connected inside the several limiting grooves. The several second screws extend outward from both ends through the inner wall of the template and are set between the support rods. The two ends of the several second screws are threaded with the same number of mountain-shaped clips. The inner side of the several mountain-shaped clips is attached to the front of the two support rods for fixation. Several No. 2 nuts are threaded on both ends of the several second screws.
[0007] According to the prefabricated PC component side support reinforcement structure, several steel ribs are welded to the front of several support rods. The steel ribs are arranged at equal intervals in the transverse direction and are perpendicular to the support rods. The steel ribs are rigidly connected to the support rods at the intersection of the steel ribs and the support rods with bolts. The steel ribs are made of double channel steel, and their length covers the transverse span of the template. Both ends of the steel ribs extend to the inner walls of both sides of the template.
[0008] According to the prefabricated PC component side formwork reinforcement structure, eight No. 1 positioning parts are symmetrically fixedly arranged on the inner wall between several support rods. One end of eight first diagonal braces is welded to the front of the eight No. 1 positioning parts, and eight fixing parts are welded to the other end of the eight first diagonal braces. Eight No. 2 positioning parts are symmetrically fixedly arranged on the inner wall between several support rods. One end of eight second diagonal braces is welded to the front of the eight No. 2 positioning parts, and eight fixing parts are welded to the other end of the eight second diagonal braces. The fixing parts are anchored to the ground.
[0009] According to the prefabricated PC component side support reinforcement structure, four sponge strips are embedded and fixed at the joints of the two templates and the two PC components, and completely fill the gaps between the templates and the PC components.
[0010] This utility model has the following beneficial effects: 1. Compared with the existing technology, by setting up a combination of expansion bolts, the sleeve is first preset in the positioning groove of the PC component, and then the first screw passes through the template and is threadedly connected to the sleeve. The core head expansion anchor is used to tighten the nut, which realizes the precise positioning and rigid connection between the PC component and the template, effectively improving the positioning accuracy and anti-displacement capability of the template installation.
[0011] 2. Compared with existing technologies, the formwork is supported by welding solid steel rods on both sides of the main column to form vertical support. The front of the support rods is rigidly connected to the horizontal double-channel steel ribs by bolts to form a grid skeleton, which makes the lateral pressure of the concrete evenly distributed through the grid system, significantly enhancing the overall rigidity and deformation resistance of the formwork. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1This is an overall schematic diagram of the side formwork reinforcement structure of the prefabricated PC component of this utility model; Figure 2 This is a side sectional view of the prefabricated PC component side support and reinforcement structure of this utility model; Figure 3 This is an internal sectional view of the side formwork reinforcement structure of the prefabricated PC component of this utility model; Figure 4 This is a schematic diagram of the support rod of the side formwork reinforcement structure of the prefabricated PC component of this utility model.
[0013] Legend: 1. PC component; 2. Template; 3. Sponge strip; 4. Steel rib; 5. Fixing plate; 6. Nut No. 1; 7. Flat washer; 8. Sleeve; 9. First screw; 10. Core head; 11. Spring washer; 12. Positioning groove; 13. Fixing groove; 14. Nut No. 2; 15. Second screw; 16. Mountain-shaped clip; 17. Support rod; 18. Limiting groove; 19. Fixing component; 20. First diagonal brace; 21. Positioning component No. 1; 22. Positioning component No. 2; 23. Second diagonal brace; 24. Main column. Detailed Implementation
[0014] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0015] Reference Figure 1-4 This utility model embodiment of a prefabricated PC component side formwork reinforcement structure includes PC components 1 and templates 2. Two templates 2 are fixedly installed on both sides of two PC components 1, with a gap reserved between the two PC components 1. The inner sides of the two templates 2 are closed with the gap to form a casting cavity. A fixing plate 5 is fixedly installed on one side of the template 2, and a fixing groove 13 is fixedly installed on the surface of the fixing plate 5. Several positioning grooves 12 are fixedly installed on both sides of the two PC components 1. The same number of sleeves 8 are fixedly installed inside the several positioning grooves 12. A first screw 9 is threaded inside the several sleeves 8. One end of the first screw 9 is fixedly equipped with a core head 10, and the other end of the first screw 9 is equipped with a flat washer 7 and a spring washer 11, and the thread is equipped with a No. 1 nut 6; two main columns 24 are fixedly installed in the middle of the inner wall of the two templates 2. Both main columns 24 are made of high-strength alloy material, and the cross-section is rectangular with built-in reinforcing ribs. Several support rods 17 are evenly arranged on both sides of the two main columns 24. The support rods 17 are made of solid steel rods, and one end is rigidly fixed to the main column 24 by welding, so as to realize the precise positioning and rigid connection between the PC component 1 and the template 2, and prevent the relative displacement between the template 2 and the PC component 1 during pouring.
[0016] Several limiting grooves 18 are fixedly provided on the surfaces of two PC components 1. Several second screws 15 are threadedly connected inside the limiting grooves 18. The second screws 15 extend outward from both ends through the inner wall of the template 2 and are located between the support rods 17. The same number of mountain-shaped clips 16 are threaded at both ends of the second screws 15. The inner side of the mountain-shaped clips 16 is fixed to the front of the two support rods 17. Several No. 2 nuts 14 are threaded at both ends of the second screws 15. By setting tie rods, the connection between the template 2 and the PC component 1 is further reinforced, the support system is further locked, and the lateral force is distributed. Several steel ribs 4 are welded to the front of several support rods 17. The steel ribs 4 are arranged at equal intervals in the transverse direction and are perpendicular to the support rods 17. The steel ribs 4 and the support rods 17 are rigidly connected by bolts at the intersection nodes. The steel ribs 4 are made of double-channel steel, and their length covers the transverse span of the template 2. The two ends of the steel ribs 4 extend to the inner walls of both sides of the template 2. By using the main column 24, support rods 17 and steel ribs 4 and combining them in a cross shape, a grid-like rigid support frame is constructed to disperse the lateral pressure generated by concrete pouring and avoid local depression or overall deformation of the template 2. Eight No. 1 positioning pieces 21 are symmetrically fixed to the inner wall between several support rods 17. One end of eight first diagonal braces 20 is welded to the front of each of the eight No. 1 positioning pieces 21, and eight fixing pieces 19 are welded to the other end of each of the eight first diagonal braces 20. Eight No. 2 positioning pieces 22 are symmetrically fixed to the inner wall between several support rods 17. One end of eight second diagonal braces 23 is welded to the front of each of the eight No. 2 positioning pieces 22, and eight fixing pieces 19 are welded to the other end of each of the eight second diagonal braces 23. The fixing pieces 19 are anchored to the ground to control the verticality of the template 2, resist lateral forces in the horizontal direction, and prevent tilting or displacement of the template 2 during pouring. Four sponge strips 3 are embedded and fixed along the joint direction at the joint between the two templates 2 and the two PC components 1, completely filling the gap between the template 2 and the PC components 1. By using the sponge strips 3 at the joint between the template 2 and the PC components 1, grout leakage during concrete pouring is prevented, ensuring the quality of the joint formation.
[0017] Working principle: First, sleeves 8 are installed inside the positioning grooves 12 of the two PC components 1. At the same time, a first screw 9 with a flat washer 7 and a spring washer 11 is threaded into the sleeve 8 through the fixing plates 5 on both sides of the template 2. Then, a fixing sponge strip 3 is embedded along the joint direction at the joint between the template 2 and the PC component 1. The two templates 2 are then erected on both sides of the PC component 1, so that the gap between the template 2 and the PC component 1 forms a closed casting cavity. Then, a second screw 15 is threaded through the template 2 and the PC component 1 to the limiting groove 1. Inside the template 2, the main column 24 and several support rods 17 on both sides are installed inside the template 2. A horizontal steel rib 4 is installed on its front and connected by bolts. Then, a first positioning part 21 and a second positioning part 22 are installed between the support rods 17 to connect the first diagonal brace 20 and the second diagonal brace 23 respectively. The other end of the diagonal brace is anchored to the ground by a fixing part 19. Finally, by setting the second screw 15 in the limiting groove 18 and using the mountain-shaped clip 16 and the second nut 14 for further reinforcement, concrete can be injected at the pouring wall.
[0018] After the pouring is completed and the shape is formed, the prefabricated PC component 1 and the formwork 2 can be removed.
[0019] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A prefabricated PC component side formwork reinforcing structure, characterized in that, The system includes PC components (1) and templates (2). Two templates (2) are fixedly installed on both sides of the two PC components (1). A gap is reserved between the two PC components (1), and the inner sides of the two templates (2) are closed with the gap to form a casting cavity. A fixing plate (5) is fixedly installed on one side of the template (2). A fixing groove (13) is fixedly installed on the surface of the fixing plate (5). Several positioning grooves (12) are fixedly installed on both sides of the two PC components (1). The same number of sleeves (8) are fixedly installed inside the several positioning grooves (12). A first screw (9) is threaded inside the several sleeves (8). A core head (10) is fixedly installed at one end of the first screw (9). A flat washer (7) and a spring washer (11) are installed at the other end of the first screw (9), and a No. 1 nut (6) is threaded on the first screw (9). Two main columns (24) are fixedly installed in the middle of the inner wall of the two templates (2). Both main columns (24) are made of high-strength alloy material, and have a rectangular cross-section with built-in reinforcing ribs. Several support rods (17) are evenly arranged on both sides of the two main columns (24). The support rods (17) are made of solid steel rods, and one end is rigidly fixed to the main column (24) by welding.
2. The prefabricated PC component side formwork reinforcing structure according to claim 1, characterized in that, Several limiting grooves (18) are fixedly provided on the surfaces of the two PC components (1). Several second screws (15) are threadedly connected inside the several limiting grooves (18). Several second screws (15) extend outward from both ends through the inner wall of the template (2) and are located between the support rods (17). The same number of mountain-shaped clips (16) are threaded at both ends of several second screws (15). The inner side of several mountain-shaped clips (16) is attached to the front of the two support rods (17) and fixed. Several No. 2 nuts (14) are threaded at both ends of several second screws (15).
3. The prefabricated PC component side formwork reinforcing structure according to claim 2, characterized in that, A number of steel ribs (4) are welded to the front of several support rods (17). The steel ribs (4) are arranged at equal intervals in the transverse direction and are perpendicular to the support rods (17). The steel ribs (4) and the support rods (17) are rigidly connected by bolts at the intersection nodes. The steel ribs (4) are made of double channel steel, and their length covers the transverse span of the template (2). The two ends of the steel ribs (4) extend to the inner walls of both sides of the template (2).
4. The prefabricated PC component side formwork reinforcing structure according to claim 2, characterized in that, Eight No. 1 positioning parts (21) are symmetrically fixedly arranged on the inner wall between several support rods (17). One end of eight first diagonal braces (20) is welded to the front of the eight No. 1 positioning parts (21). Eight fixing parts (19) are welded to the other end of the eight first diagonal braces (20). Eight No. 2 positioning parts (22) are symmetrically fixedly arranged on the inner wall between several support rods (17). One end of eight second diagonal braces (23) is welded to the front of the eight No. 2 positioning parts (22). Eight fixing parts (19) are welded to the other end of the eight second diagonal braces (23). The fixing parts (19) are anchored to the ground.
5. The prefabricated PC component side formwork reinforcing structure according to claim 1, characterized in that, Four sponge strips (3) are embedded and fixed along the joint direction at the joint between the two templates (2) and the two PC components (1), and completely fill the gap between the templates (2) and the PC components (1).