Hydraulic inverted arch full-arc formwork trestle tool mechanism and topological optimization method thereof

Abstract

The invention relates to the technical field of tunnel construction, in particular to a hydraulic inverted arch full-arc formwork trestle tool mechanism and a topological optimization method thereof.The hydraulic inverted arch full-arc formwork trestle tool mechanism comprises a trestle body, an inverted arch full-arc formwork, a hydraulic support, an auxiliary assembly and a supporting assembly; bearing steel plates are fixedly and symmetrically arranged on the trestle body, and walking rails are symmetrically arranged at the upper ends of the two side walls of the trestle body; the inverted arch full-arc-shaped formwork is installed on the truss through the hydraulic oil cylinder, and the truss is movably installed at the lower end of the trestle main body. An auxiliary assembly and a supporting assembly are arranged on the trestle main body; the movable frame is movably arranged on the trestle body in a controllable mode, the hydraulic supports are arranged at the two ends of the bearing frame, meanwhile, the supporting plates with the angles capable of being adjusted at the bottom ends of the hydraulic supports are supported on the ground, and the positioning columns are inserted into the positioning holes to fix the angle positions of the supporting plates. And when the trestle body moves, the hydraulic support can adapt to different tunnel ground inverted arch angles, and the stability of the trestle body during moving is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, in particular to a hydraulic inverted arch full-arc formwork trestle tooling mechanism and a topology optimization method thereof. Background Art

[0002] The Chinese patent document with the existing announcement number CN105649654A discloses an automatic hydraulic inverted arch trestle trolley, which includes a trestle system and an inverted arch formwork system. The trestle system is provided with a trolley connected with the inverted arch formwork system; the inverted arch formwork system includes an inverted arch formwork longitudinal beam, an arc inverted arch formwork group, and the arc inverted arch formwork group includes a fixed inverted arch formwork and a movable inverted arch formwork; a stretching mechanism is provided between the movable inverted arch formwork and the inverted arch formwork longitudinal beam; a lifting support foot is provided at the bottom of the inverted arch formwork crossbeam; an inverted arch walking mechanism that can be telescoped up and down is provided at the bottom of the end of the inverted arch formwork longitudinal beam; a transverse movement mechanism is provided at both ends of the trestle system in the longitudinal direction, and a trestle walking wheel is provided at the tail end of the trestle system. The trolley construction method includes the following steps: trestle moving into place, inverted arch excavation and steel bar binding, inverted arch demoulding, mold moving into place, and fixed mold casting. The present invention can realize the rapid inverted arch operation construction of the entire tunnel with the same section, saves the assembly and removal of the formwork, greatly reduces the labor intensity of the workers, and improves the construction efficiency and construction quality.

[0003] However, in the above scheme and the prior art, the main body of the trestle is mainly driven to move by walking wheels, and the support frame needs to be coordinated during the movement to ensure the stability of the trestle movement. During tunnel construction, the inverted arch angles of tunnel construction ground at different positions are different. The bottom end of the existing support frame is usually fixed and cannot be adapted to different tunnel inverted arch angles, which affects the stability of the support frame erection support, and further affects the stability of the trestle movement. Summary of the invention

[0004] The object of the present invention is to provide a hydraulic inverted arch full-arc formwork trestle tooling mechanism and a topology optimization method thereof to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hydraulic inverted arch full-arc formwork trestle tooling mechanism, comprising a trestle body, an inverted arch full-arc formwork, a hydraulic support, an auxiliary component and a supporting component; the trestle body is fixedly and symmetrically provided with load-bearing steel plates, and the upper ends of the two side walls of the trestle body are symmetrically provided with walking tracks; the inverted arch full-arc formwork is installed on a truss through a hydraulic cylinder, and the truss is movably installed at the lower end of the trestle body; the trestle body is provided with an auxiliary component and a supporting component.

[0006] Preferably, the auxiliary components include an auxiliary frame, a mobile frame, a hydraulic lifting rod, a walking wheel, a gear chain group, a supporting frame and a walking pulley device; the auxiliary frame is symmetrically fixedly arranged at both ends of the trestle body, and the bottom end of the auxiliary frame is controllably and movably provided with a mobile frame; the hydraulic lifting rod is symmetrically fixedly arranged at the front end of the auxiliary frame, and the end of the hydraulic lifting rod is installed with a walking wheel; the gear chain group is symmetrically arranged on the two side walls of the trestle body and is driven by a transmission motor, the supporting frame is movably installed at the lower end of the trestle body, and the upper end of the supporting frame is symmetrically provided with a walking pulley device; hydraulic supports are fixedly arranged on both sides of the mobile frame and both sides of the supporting frame.

[0007] Preferably, the support assembly includes positioning holes, a mounting plate, a support plate, an arc groove, a threaded hole, a bolt and a positioning column; the positioning holes are equidistantly and symmetrically arranged in a ring shape on both side walls of the output end of the hydraulic support, and the output end of the hydraulic support is arranged in an arc surface; the mounting plate is fixedly and symmetrically arranged at both ends of the support plate, the mounting plate is rotatably connected to the output end of the hydraulic support through a pin shaft, and an arc groove is arranged at the upper end of the support plate; the threaded holes are equidistantly and symmetrically arranged in a ring shape on the side wall of the mounting plate, and a positioning column is fixedly arranged at the end of the bolt.

[0008] Preferably, a driving pulley device is symmetrically and equidistantly arranged on the upper end of the truss, the driving pulley device has a built-in driving motor to control the movement of the truss, and the driving pulley device is movably arranged on a walking track.

[0009] Preferably, the support frame is fixedly connected to one side chain of the gear chain group, and the walking pulley device is movably arranged on the walking track.

[0010] Preferably, the positioning hole corresponds to the setting position of the positioning column, and the two are plugged in; the threaded hole corresponds to the setting position of the bolt, and the two are threadedly connected.

[0011] Preferably, the support plate and the hydraulic support are arranged at corresponding positions and have the same number of groups, the curved surface of the output end of the hydraulic support is clamped in the arc groove of the support plate, and the bottom end of the support plate is provided with anti-slip convex patterns.

[0012] Preferably, folding ramps are hingedly provided at both ends of the bearing steel plate, the bottom end of the folding ramp is fixedly connected to the support plate, the hydraulic push rod is rotatably provided on the auxiliary frame, and the output end of the hydraulic push rod is rotatably connected to the support plate; guardrails are symmetrically fixedly provided on the inner walls on both sides of the trestle body.

[0013] A topology optimization method for a hydraulic inverted arch full arc formwork trestle tooling mechanism is disclosed. The method comprises the following steps: firstly, a detailed investigation is conducted on the geological conditions and construction environment of the tunnel, and based on the investigation results, a scheme of a hydraulic inverted arch full arc formwork trestle tooling mechanism is designed, including key parameters such as formwork size, hydraulic system configuration, and trestle structure; then, a finite element model is established according to the geometric size and material properties of the tooling mechanism, and then a topology optimization objective function and constraint conditions are set; next, an optimization algorithm is used to iteratively calculate the model, and material regions with a small contribution to structural performance are gradually removed; finally, the optimization results are output and analyzed; a detailed design of the supporting structure is conducted according to the optimization results, and necessary simulation verification and experimental tests are conducted; after completion, the hydraulic inverted arch full arc formwork trestle tooling mechanism is put into formal construction use.

[0014] Compared with the prior art, this application has the following beneficial effects:

[0015] By arranging hydraulic supports at both ends of the movable frame and the supporting frame which can be controlled to move on the trestle body, and at the same time, the support plate with a rotatable angle adjustment at the bottom of the hydraulic support supports the ground, and the angular position of the support plate is fixed by inserting the positioning column into the positioning hole, the hydraulic support can adapt to different tunnel ground invert angles when the trestle body moves, thereby ensuring the stability of the trestle body when moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 For the present invention Figure 1 A partial enlarged view of the middle A;

[0018] Figure 3 For the present invention Figure 1 A partial enlarged view of point B in the middle;

[0019] Figure 4 This is a schematic diagram of the connection of the hydraulic support structure of the present invention;

[0020] Figure 5 It is a schematic connection diagram of the structural support plate of the present invention;

[0021] Figure 6 This is a schematic diagram of the bolt structure connection of the present invention;

[0022] Figure 7 It is a schematic diagram of the process of the present invention.

[0023] In the figure: the trestle body 1, the bearing steel plate 2, the walking track 3, the truss 4, the hydraulic cylinder 5, the inverted arch full arc template 6, the driving pulley device 7, the auxiliary frame 8, the mobile frame 9, the hydraulic lifting rod 10, the walking wheel 11, the gear chain group 12, the supporting frame 13, the walking pulley device 14, the hydraulic support 15, the positioning hole 16, the mounting plate 17, the support plate 18, the arc groove 19, the threaded hole 20, the bolt 21, the positioning column 22, the folding ramp 23, the support plate 24, the hydraulic push rod 25, and the guardrail 26. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0029] See also Figure 1-7 , the present invention provides the following four preferred embodiments:

[0030] Embodiment 1: A hydraulic inverted arch full arc template trestle tooling mechanism and a topological optimization method thereof, comprising a trestle body 1, an inverted arch full arc template 6, a hydraulic support 15, an auxiliary component and a support component; the trestle body 1 is fixedly and symmetrically provided with a bearing steel plate 2, and the upper ends of the two side walls of the trestle body 1 are symmetrically provided with a walking track 3; the inverted arch full arc template 6 is installed on a truss 4 through a hydraulic oil cylinder 5, and the truss 4 is movably installed at the lower end of the trestle body 1; the trestle body 1 is provided with an auxiliary component and a support component; the auxiliary component comprises an auxiliary frame 8, a moving frame 9, a hydraulic lifting rod 10, a walking wheel 11, a gear chain group 12, a support frame 13 and a walking track 3; Walking pulley device 14; the support assembly includes positioning holes 16, mounting plates 17, support plates 18, arc grooves 19, threaded holes 20, bolts 21 and positioning columns 22; the upper end of the truss 4 is symmetrically and equidistantly provided with a driving pulley device 7, the driving pulley device 7 has a built-in driving motor to control the movement of the truss 4, and the driving pulley device 7 is movably arranged on the walking track 3; the two ends of the bearing steel plate 2 are hingedly provided with folding ramps 23, the bottom end of the folding ramp 23 is fixedly connected to the support plate 24, the hydraulic push rod 25 is rotatably arranged on the auxiliary frame 8, and the output end of the hydraulic push rod 25 is rotatably connected to the support plate 24; guardrails 26 are symmetrically and fixedly arranged on the inner walls on both sides of the trestle body 1.

[0031] When in use, the trestle body 1 is moved to a predetermined position, the driving pulley device 7 drives the truss 4 to move so that the full-arc formwork 6 of the inverted arch is moved to the construction position, and then the hydraulic cylinder 5 is used to adjust the full-arc formwork 6 of the inverted arch to the design elevation, and the connection is reinforced by the lead screw to ensure that the full-arc formwork 6 of the inverted arch does not deviate during the pouring process. After the pouring is completed, the hydraulic cylinder 5 is used again to lift the full-arc formwork 6 of the inverted arch to carry out the next cycle of construction; during the movement of the trestle body 1, the hydraulic push rod 25 is telescopically driven to adjust the position of the support plate 24, thereby controlling the lifting and lowering of the folding ramp 23 to avoid affecting the movement of the trestle body 1; hydraulic supports 15 are arranged at both ends of the mobile frame 9 and the supporting frame 13 that can be controlled and moved on the trestle body 1, and at the same time, the support plate 18 with an angle that can be rotated and adjusted at the bottom end of the hydraulic support 15 supports the ground, and the angular position of the support plate 18 is fixed by inserting the positioning column 22 into the positioning hole 16, so that when the trestle body 1 moves, the hydraulic support 15 can adapt to different tunnel ground inverted arch angles, thereby ensuring the stability of the trestle body 1 when moving.

[0032] Embodiment 2, on the basis of embodiment 1: the auxiliary frame 8 in the auxiliary component is symmetrically fixedly arranged at both ends of the trestle body 1, and the bottom end of the auxiliary frame 8 is controllably movably provided with a mobile frame 9; the hydraulic lifting rod 10 is symmetrically fixedly arranged at the front end of the auxiliary frame 8, and the end of the hydraulic lifting rod 10 is installed with a walking wheel 11; the gear chain group 12 is symmetrically arranged on the two side walls of the trestle body 1 and is driven by a transmission motor, the supporting frame 13 is movably installed at the lower end of the trestle body 1, and the upper end of the supporting frame 13 is symmetrically provided with a walking pulley device 14; hydraulic supports 15 are fixedly arranged on both sides of the mobile frame 9 and both sides of the supporting frame 13; the supporting frame 13 is fixedly connected to one side chain in the gear chain group 12, and the walking pulley device 14 is movably arranged on the walking track 3.

[0033] When in use, when the trestle body 1 moves forward and backward, the transmission motor controls the gear chain group 12 to work and cooperate with the walking pulley device 14 to move on the walking track 3 so that the supporting frame 13 moves to a suitable position, and then the hydraulic supports 15 at both ends of the supporting frame 13 are extended to support the ground, and then the hydraulic supports 15 at both ends of the moving frame 9 are contracted and separated from the ground. At this time, the walking wheel 11 drives and cooperates with the gear chain group 12 to drive the forward and backward movement of the trestle body 1. After completion, the hydraulic supports 15 on both sides of the moving frame 9 and the supporting frame 13 all support the ground; when the trestle body 1 moves horizontally, the hydraulic supports 15 at both ends of the moving frame 9 are contracted and separated from the ground, and the driving moving frame 9 moves horizontally along the auxiliary frame 8, and the hydraulic supports 15 at both ends of the moving frame 9 support the ground, and then the hydraulic supports 15 at both ends of the supporting frame 13 are contracted and separated from the ground. At the same time, the hydraulic lifting rod 10 contracts and drives the walking wheel 11 to separate from the ground. At this time, the auxiliary frame 8 moves horizontally along the moving frame 9 to realize the horizontal movement of the trestle body 1.

[0034] Embodiment 3, on the basis of embodiment 2: the positioning holes 16 in the support assembly are equidistantly and symmetrically arranged in a ring shape on both side walls of the output end of the hydraulic support 15, and the output end of the hydraulic support 15 is arranged in an arc surface; the mounting plate 17 is fixedly and symmetrically arranged at both ends of the support plate 18, and the mounting plate 17 is rotatably connected to the output end of the hydraulic support 15 through a pin shaft, and an arc groove 19 is arranged at the upper end of the support plate 18; the threaded holes 20 are equidistantly arranged in a ring shape on the side wall of the mounting plate 17, and a positioning column 22 is fixedly arranged at the end of the bolt 21; the positioning holes 16 and the positioning columns 22 are arranged in corresponding positions, and the two are plugged in; the threaded holes 20 and the bolts 21 are arranged in corresponding positions, and the two are threadedly connected; the support plate 18 and the hydraulic support 15 have corresponding positions and the same number of groups, the arc surface of the output end of the hydraulic support 15 is clamped in the arc groove 19 of the support plate 18, and the bottom end of the support plate 18 is provided with anti-slip convex patterns.

[0035] During use, when the hydraulic support 15 moves, the inverted arch angle of the tunnel ground where it rests changes. At this time, the bolt 21 on the mounting plate 17 is unscrewed, and the mounting plate 17 is rotated along the output end of the hydraulic support 15 to adjust the angle of the support plate 18. During the process, the arc surface of the output end of the hydraulic support 15 is clamped in the arc groove 19 of the support plate 18 to ensure the stability of the hydraulic support 15 when supporting. After the angle of the support plate 18 is adjusted, the bolt 21 is screwed into the threaded hole 20 and the positioning column 22 is reinserted into the positioning hole 16 to fix the position of the support plate 18, so as to adapt to the tunnel ground with different inverted arch angles and ensure the stability of the device.

[0036] Embodiment 4: Figure 1-6 As shown, based on the third embodiment, this embodiment further provides a hydraulic inverted arch full arc template trestle tooling mechanism and a topology optimization method thereof, including:

[0037] Step 1: Establish a finite element model of the tooling mechanism: Establish an accurate finite element model based on the geometric dimensions and material properties of the tooling mechanism; the model includes all key components such as trusses, formwork, hydraulic systems and supporting structures to ensure the accuracy and reliability of the analysis.

[0038] Step 2: Set the topology optimization objective function and constraints: According to actual needs, set a reasonable topology optimization objective function and constraints; in this embodiment, the objective function is to minimize the structural weight; the constraints include stress intensity requirements, displacement restrictions, etc., to ensure that the optimized structure meets the actual use requirements.

[0039] Step 3: Use an optimization algorithm to iteratively calculate the model: Select an appropriate optimization algorithm to iteratively calculate the finite element model; this embodiment uses a variable density method for iterative calculation, which achieves structural optimization by gradually adjusting the material density distribution; during the calculation process, the material area that contributes less to the structural performance is continuously removed while maintaining the overall performance and stability of the structure; the iterative calculation process continues until the preset optimization goal is met.

[0040] Step 4: Output optimization results and analyze them: Output the optimized results and conduct detailed analysis and comparison; the analysis content includes the structural weight, stress distribution, displacement change, etc. before and after optimization; by comparing the results before and after optimization, the optimization effect can be evaluated and the final design scheme can be determined.

[0041] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A hydraulic inverted arch full arc formwork trestle tooling mechanism, characterized by: The invention comprises a trestle bridge body (1), an inverted arch full-arc formwork (6), a hydraulic support (15), an auxiliary component and a supporting component; a load-bearing steel plate (2) is fixedly and symmetrically arranged on the trestle bridge body (1), and a walking track (3) is symmetrically arranged on the upper ends of the two side walls of the trestle bridge body (1); the inverted arch full-arc formwork (6) is installed on a truss (4) through a hydraulic cylinder (5), and the truss (4) is movably installed on the lower end of the trestle bridge body (1); and the auxiliary component and the supporting component are arranged on the trestle bridge body (1).

2. The hydraulic inverted arch full arc formwork trestle tooling mechanism according to claim 1 is characterized by: The auxiliary assembly comprises an auxiliary frame (8), a mobile frame (9), a hydraulic lifting rod (10), a walking wheel (11), a gear chain group (12), a supporting frame (13) and a walking pulley device (14); the auxiliary frame (8) is symmetrically fixedly arranged at both ends of the trestle body (1), and the bottom end of the auxiliary frame (8) is controllably movably provided with the mobile frame (9); the hydraulic lifting rod (10) is symmetrically fixedly arranged at the front end of the auxiliary frame (8), and the end of the hydraulic lifting rod (10) is provided with a walking wheel (11); the gear chain group (12) is symmetrically arranged on the two side walls of the trestle body (1) and is driven by a transmission motor; the supporting frame (13) is movably installed at the lower end of the trestle body (1), and the upper end of the supporting frame (13) is symmetrically provided with a walking pulley device (14); hydraulic supports (15) are fixedly arranged on both sides of the mobile frame (9) and both sides of the supporting frame (13).

3. The hydraulic inverted arch full arc formwork trestle tooling mechanism according to claim 1 is characterized by: The support assembly comprises a positioning hole (16), a mounting plate (17), a support plate (18), an arc groove (19), a threaded hole (20), a bolt (21) and a positioning column (22); the positioning holes (16) are equidistantly and symmetrically arranged in an annular shape on both side walls of the output end of the hydraulic support (15), and the output end of the hydraulic support (15) is arranged in an arc surface; the mounting plate (17) is fixedly and symmetrically arranged at both ends of the support plate (18), the mounting plate (17) and the output end of the hydraulic support (15) are rotatably connected through a pin shaft, and an arc groove (19) is arranged at the upper end of the support plate (18); the threaded holes (20) are equidistantly and annularly arranged on the side wall of the mounting plate (17), and a positioning column (22) is fixedly arranged at the end of the bolt (21).

4. The hydraulic inverted arch full arc formwork trestle tooling mechanism according to claim 1, characterized in that: The upper end of the truss (4) is symmetrically and equidistantly provided with a driving pulley device (7), the driving pulley device (7) has a built-in driving motor to control the movement of the truss (4), and the driving pulley device (7) is movably arranged on the walking track (3).

5. The hydraulic inverted arch full arc formwork trestle tooling mechanism according to claim 2 is characterized by: The support frame (13) is fixedly connected to a chain on one side of the gear chain group (12), and the walking pulley device (14) is movably arranged on the walking track (3).

6. The hydraulic inverted arch full arc formwork trestle tooling mechanism according to claim 3 is characterized by: The positioning hole (16) and the positioning column (22) are arranged at corresponding positions, and the two are plugged in; the threaded hole (20) and the bolt (21) are arranged at corresponding positions, and the two are threadedly connected.

7. The hydraulic inverted arch full arc formwork trestle tooling mechanism according to claim 3 is characterized by: The support plate (18) and the hydraulic support (15) are arranged at corresponding positions and have the same number of groups. The arc surface of the output end of the hydraulic support (15) is clamped in the arc groove (19) of the support plate (18). The bottom end of the support plate (18) is provided with anti-slip convex patterns.

8. The hydraulic inverted arch full arc formwork trestle tooling mechanism according to claim 1, characterized in that: Folding ramps (23) are hingedly provided at both ends of the bearing steel plate (2), the bottom end of the folding ramp (23) is fixedly connected to the support plate (24), a hydraulic push rod (25) is rotatably provided on the auxiliary frame (8), and the output end of the hydraulic push rod (25) is rotatably connected to the support plate (24); guardrails (26) are symmetrically fixedly provided on the inner walls of both sides of the trestle body (1).

9. A topology optimization method for a hydraulic inverted arch full-arc formwork trestle tooling mechanism as claimed in any one of claims 1 to 8, characterized in that: The method is as follows: firstly, a detailed investigation is conducted on the tunnel geological conditions and construction environment, and based on the investigation results, a hydraulic inverted arch full-arc formwork trestle tooling mechanism scheme is designed, including key parameters such as formwork size, hydraulic system configuration, and trestle structure; After that, a finite element model is established according to the geometric dimensions and material properties of the tooling mechanism, and then the topology optimization objective function and constraints are set. Next, the optimization algorithm is used to iteratively calculate the model, gradually removing material areas that contribute less to the structural performance. Finally, the optimization results are output and analyzed. According to the optimization results, the supporting structure is designed in detail, and necessary simulation verification and experimental testing are carried out. After completion, the hydraulic inverted arch full-arc formwork trestle tooling mechanism is put into formal construction.

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