Modular adjustable jumbo steel structure camber making jig device
The modular and adjustable steel structure curved surface jig device solves the space requirements for pre-assembly of curved surface jigs in space-constrained construction sites, enabling rapid adjustment and efficient construction, and meeting the requirements for construction stability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN BRANCH OF CCCC THIRD HARBOR ENG
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-12
AI Technical Summary
In projects with limited space, such as construction sites or mountainous areas, traditional curved formwork requires pre-installation space, which leads to low construction efficiency and space utilization.
The modular and adjustable ultra-large steel structure arc surface fabrication frame device, through the standardized modular combination of fixed base, column, load-bearing arc plate and transverse support bar, combined with the flexible adjustment of threaded connection mechanism, forms a stable three-dimensional grid support structure to meet the rapid adjustment needs of steel casings of different specifications.
It effectively solves the problem of needing to reserve pre-installation space for traditional curved surface jigs, improves space utilization, reduces on-site adjustment time, and meets the requirements of construction stability and safety.
Smart Images

Figure CN224351680U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel structure construction technology, and in particular to a modular and adjustable ultra-large steel structure arc surface fabrication jig device. Background Technology
[0002] The scaffolding device (also known as assembly scaffolding, assembly frame, or support scaffolding) used in steel structure construction is a temporary support structure mainly used in the assembly, welding, alignment, and hoisting of steel structure components. It provides a stable working platform and precise positioning support, and is a key auxiliary tool for ensuring the quality, accuracy, and safety of steel structure construction.
[0003] However, in practical applications, curved surface jigs need to replicate the factory pre-assembly conditions, which means that in addition to the installation space, extra pre-assembly space must be reserved. This requirement is often difficult to meet in densely populated construction sites or mountainous projects, limiting construction efficiency and space utilization. Utility Model Content
[0004] Therefore, it is necessary to solve the problem of how to realize the pre-assembly space required for curved surface jigs in space-constrained construction sites (such as dense sites or mountainous projects), and to provide a modular and adjustable ultra-large steel structure curved surface jig fabrication device.
[0005] A modular and adjustable ultra-large steel structure arc surface fabrication jig device, comprising:
[0006] Fixed base;
[0007] The columns are evenly distributed and threaded to the top of the fixed base. The columns are evenly distributed in a grid pattern on the top of the fixed base.
[0008] Evenly distributed load-bearing curved plates, which are fixedly connected to the top of the column by bolts, and are distributed parallel to the top of the column;
[0009] Evenly distributed transverse support bars are fixedly connected to the arc surface of the load-bearing curved plate by bolts.
[0010] In one embodiment, the fixed base includes evenly distributed transverse I-beams and longitudinal I-beams. The transverse I-beams are evenly distributed at the bottom of the column, and the longitudinal I-beams are fixedly connected to the top of the transverse I-beams by bolts. The transverse and longitudinal I-beams are staggered.
[0011] In one embodiment, a threaded connection mechanism is installed between the column and the transverse I-beam. The threaded connection mechanism includes a flange seat, a bolt mounting plate, and bolt fasteners. The flange seat is fixedly connected to the top of the transverse I-beam, and the bolt mounting plate is fixedly connected to the surface of the column. The flange seat and the bolt mounting plate are fixedly connected by bolt fasteners.
[0012] In one embodiment, the bottom of the column extends into the interior of the flange seat, and the horizontal cross-sectional shape of the contact area between the column and the flange seat is a matching rectangle.
[0013] In one embodiment, diagonal braces are bolted together between two adjacent columns.
[0014] In one embodiment, the upper surface of the transverse support bar is fixedly connected with two triangular plates by bolts, with the inclined surfaces of the two triangular plates facing each other.
[0015] In one embodiment, the vertical end of the triangular plate is fixedly connected to a guide arc plate by bolts, and the arc of the load-bearing arc plate and the guide arc plate are the same.
[0016] Beneficial effects
[0017] 1. The aforementioned modular and adjustable ultra-large steel structure curved surface fabrication jig device, through a standardized modular combination of fixed base, columns, load-bearing curved plates, and transverse support bars, combined with the flexible adjustment function of the threaded connection mechanism, can quickly adjust the column height and curved plate parameters according to the steel casing specifications. This design effectively solves the problem of traditional curved surface jigs requiring pre-installation space, and is especially suitable for mountainous areas or dense construction sites with limited space, significantly improving space utilization and reducing on-site adjustment time.
[0018] 2. The device adopts a rigid node design where the flange seat and bolt mounting plate are connected by high-strength bolt fasteners. Combined with the cross reinforcement of diagonal braces and the synergistic force-bearing system of transverse support bars and triangular plates, a stable three-dimensional grid support structure is formed. The application of anti-loosening washers and high-strength nuts further ensures the positioning accuracy of the load-bearing and guide curved plates under dynamic loads, meeting the stringent requirements for stability and safety in the construction of ultra-large steel structure curved surfaces. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This is a schematic sectional view of the elevation of this utility model;
[0022] Figure 3 for Figure 2 Enlarged view of D;
[0023] Figure 4 for Figure 2 Schematic sectional view along the middle AA direction;
[0024] Figure 5 for Figure 2 Cross-sectional view along the middle BB direction;
[0025] Figure 6 for Figure 5 Enlarged view of E in the middle;
[0026] Figure 7 for Figure 2 Cross-sectional view along the CC direction.
[0027] Figure label:
[0028] 100. Fixed base; 110. Horizontal I-beam; 120. Longitudinal I-beam; 200. Column; 300. Load-bearing curved plate; 400. Horizontal support bar; 500. Threaded connection mechanism; 510. Flange seat; 520. Bolt mounting plate; 530. Bolt fastener; 600. Diagonal brace; 700. Triangular plate; 800. Guide curved plate. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0030] The following is combined with Figures 1-7 This invention describes a modular, adjustable, ultra-large steel structure arc surface fabrication jig device.
[0031] In one embodiment, a modular adjustable ultra-large steel structure arc surface fabrication frame device includes: a fixed base 100, uniformly distributed columns 200, uniformly distributed load-bearing arc plates 300, and uniformly distributed transverse support bars 400; the fixed base 100 includes uniformly distributed transverse I-beams 110 and longitudinal I-beams 120, the transverse I-beams 110 being uniformly distributed at the bottom of the columns 200, and the longitudinal I-beams 120 being fixedly connected to the top of the transverse I-beams 110 by bolts and fasteners 530. The structure consists of horizontal I-beams 110 and vertical I-beams 120, which are staggered. Columns 200 are threaded to the top of the fixed base 100 and are evenly distributed in a grid pattern on the top of the fixed base 100. A load-bearing curved plate 300 is fixedly connected to the top of the column 200 by bolts and fasteners 530 and is distributed parallel to the top of the column 200. A horizontal support bar 400 is fixedly connected to the arc surface of the load-bearing curved plate 300 by bolts and fasteners 530.
[0032] In this embodiment, the modular and adjustable ultra-large steel structure curved surface fabrication jig device, through a standardized modular combination of a fixed base 100, column 200, load-bearing curved plate 300, and transverse support bar 400, combined with the flexible adjustment function of the threaded connection mechanism 500, can quickly adjust the height of the column 200 and the parameters of the load-bearing curved plate 300 according to the specifications of the steel casing. This design effectively solves the problem of traditional curved surface jigs requiring pre-installation space, and is especially suitable for mountainous areas or dense construction sites with limited space, significantly improving space utilization and reducing on-site adjustment time.
[0033] like Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, a threaded connection mechanism 500 is installed between the column 200 and the transverse I-beam 110. The threaded connection mechanism 500 includes a flange seat 510, a bolt mounting plate 520, and a bolt fastener 530. The flange seat 510 is fixedly connected to the top of the transverse I-beam 110, and the bolt mounting plate 520 is fixedly connected to the surface of the column 200. The flange seat 510 and the bolt mounting plate 520 are fixedly connected by the bolt fastener 530. The bolt fastener 530 includes a high-strength bolt, the shank of which is fitted with an anti-loosening washer, and the shank of which is threadedly connected with a high-strength nut that contacts the anti-loosening washer. The bottom of the column 200 extends into the interior of the flange seat 510, and the horizontal cross-sectional shape of the contact area between the column 200 and the flange seat 510 is a matching rectangle.
[0034] like Figure 1-7As shown, two adjacent columns 200 are fixedly connected by a diagonal brace 600 through bolt fasteners 530; two triangular plates 700 are fixedly connected to the upper surface of the transverse support bar 400 through bolt fasteners 530, with the inclined surfaces of the two triangular plates 700 facing each other; a guide arc plate 800 is fixedly connected to the vertical end of the triangular plate 700 through bolt fasteners 530, and the arc of the load-bearing arc plate 300 and the guide arc plate 800 are the same.
[0035] In this embodiment, the device employs a rigid node design where the flange seat 510 and bolt mounting plate 520 are connected by high-strength bolt fasteners 530. Combined with the cross reinforcement of the diagonal brace 600 and the coordinated force-bearing system of the transverse support bar 400 and triangular plate 700, a stable three-dimensional grid support structure is formed. The application of anti-loosening washers and high-strength nuts further ensures the positioning accuracy of the load-bearing curved plate 300 and the guide curved plate 800 under dynamic loads, meeting the stringent requirements for stability and safety in the construction of ultra-large steel structure curved surfaces.
[0036] The installation process for this curved jig is as follows:
[0037] 1. Assembly of fixed base 100: Lay out transverse I-beams 110 and distribute them evenly in a grid pattern to the predetermined position. The longitudinal I-beams 120 are vertically fixed to the top of the transverse I-beams 110 by welding to form an interlaced support structure.
[0038] II. Installation of column 200: Weld and fix flange seat 510 to the designated position on the top of transverse I-beam 110, insert the bottom of column 200 into flange seat 510, and securely lock flange seat 510 and bolt mounting plate 520 together with bolt fastener 530.
[0039] 3. Diagonal bracing 600 reinforcement: Diagonal bracing 600 is installed between adjacent columns 200 using bolt fasteners 530 to enhance overall stability.
[0040] IV. Arrangement of load-bearing curved plate 300: Install load-bearing curved plate 300 on the top of column 200 and fix it with bolt fastener 530 to ensure that each plate is parallel and has a consistent curvature.
[0041] V. Assembly of transverse support bar 400 and triangular plate 700: Lay the transverse support bar 400 along the arc surface of the load-bearing arc plate 300 and fix it with bolt fasteners 530; install two triangular plates 700 symmetrically on the upper surface of the transverse support bar 400, with the inclined surfaces facing each other.
[0042] VI. Installation of Guide Curved Plate 800: Fix the guide curved plate 800 at the vertical end of the triangular plate 700 to ensure that its curvature matches that of the load-bearing curved plate 300, forming a complete curved surface support system. Then, the steel sleeve box of the corresponding specification can be placed on the horizontal support bar 400.
[0043] Note: The height of the column 200, the length of the diagonal brace 600, the curvature of the load-bearing curved plate 300, and the curvature of the guide curved plate 800 need to be customized according to the specific specifications of the steel casing to meet the processing and manufacturing of different models of steel casings; when two adjacent structures need to be connected and fixed using bolt fasteners 530, it is necessary to pre-drill mutually aligned round holes at two opposite positions of the structure. The size and number of round holes need to be selected according to the usage requirements; all bolt fasteners 530 must be tightened according to the torque requirements, and the levelness and curvature must be calibrated after installation.
[0044] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A modular and adjustable ultra-large steel structure arc surface fabrication jig device, characterized in that, include: Fixed base (100); The columns (200) are evenly distributed and are threaded to the top of the fixed base (100). The columns (200) are evenly distributed in a grid pattern on the top of the fixed base (100). Evenly distributed load-bearing curved plates (300) are fixedly connected to the top of the column (200) by bolts, and the load-bearing curved plates (300) are distributed parallel to the top of the column (200); Evenly distributed transverse support bars (400) are fixedly connected to the arc surface of the load-bearing arc plate (300) by bolts.
2. The modular adjustable ultra-large steel structure arc surface fabrication jig device according to claim 1, characterized in that, The fixed base (100) includes evenly distributed transverse I-beams (110) and longitudinal I-beams (120). The transverse I-beams (110) are evenly distributed at the bottom of the column (200), and the longitudinal I-beams (120) are fixedly connected to the top of the transverse I-beams (110) by bolts. The transverse I-beams (110) and longitudinal I-beams (120) are staggered.
3. The modular adjustable ultra-large steel structure arc surface fabrication jig device according to claim 2, characterized in that, A threaded connection mechanism (500) is installed between the column (200) and the transverse I-beam (110). The threaded connection mechanism (500) includes a flange seat (510), a bolt mounting plate (520), and bolt fasteners (530). The flange seat (510) is fixedly connected to the top of the transverse I-beam (110), and the bolt mounting plate (520) is fixedly connected to the surface of the column (200). The flange seat (510) and the bolt mounting plate (520) are fixedly connected by bolt fasteners (530).
4. The modular adjustable ultra-large steel structure arc surface fabrication jig device according to claim 3, characterized in that, The bottom of the column (200) extends into the interior of the flange seat (510), and the horizontal cross-sectional shape of the contact area between the column (200) and the flange seat (510) is a matching rectangle.
5. The modular adjustable ultra-large steel structure arc surface fabrication jig device according to claim 1, characterized in that, Two adjacent columns (200) are fixedly connected by bolts with diagonal braces (600).
6. The modular adjustable ultra-large steel structure arc surface fabrication jig device according to claim 1, characterized in that, The upper surface of the transverse support bar (400) is fixedly connected with two triangular plates (700) by bolts, with the inclined surfaces of the two triangular plates (700) facing each other.
7. The modular adjustable ultra-large steel structure arc surface fabrication jig device according to claim 6, characterized in that, The vertical end of the triangular plate (700) is fixedly connected to a guide arc plate (800) by bolts. The arc of the load-bearing arc plate (300) and the guide arc plate (800) are the same.