Construction method of narrow and special-shaped steel corridor based on finite element simulation analysis

Abstract

The present application relates to the construction method of narrow special-shaped space steel corridor based on finite element simulation analysis, steps as follows: S1: building construction platform in MIDAS software; S2: the design structure of steel corridor is imported into MIDAS software, generates three-dimensional entity, assembles to construction platform, constructs the construction simulation model of steel corridor;S3: through finite element simulation analysis module in MIDAS software, segmented finite element simulation analysis is carried out, then simulation is simulated again until reaching standard requirement;Selecting the scheme meeting the standard requirement, the reasonable construction structure and construction step are obtained through the analysis module;S4: the construction simulation model data of steel corridor is exported through MIDAS software, generates part drawing and construction step;S5: according to specific construction step, assembly and construction are carried out.The present application is more flexible in the whole lifting process based on existing lifting equipment, reduces operation failure and reduces time consumption, so that the speed of field construction is faster and the power is higher.

Description

Technical Field

[0001] This invention relates to the field of civil engineering steel structure beam construction technology, and in particular to a construction method for steel connecting corridors in narrow, irregular spaces based on finite element simulation analysis. Background Technology

[0002] Steel structure corridors in confined terrain are elevated structures and an important component of building systems. However, in some corridor projects, the total weight of the steel corridor is large, resulting in excessive weight of individual steel beams that are outside the normal lifting capacity of tower cranes, causing construction difficulties. Using larger tower cranes increases production costs. The steel beams have long spans, and the deflection at the mid-span of the steel corridor due to its own weight is significant, posing certain safety risks during construction. In addition, the terrain where the steel structure beams are located is limited, with uneven platforms and steps, making support inconvenient. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the purpose of this invention is to provide a construction method for steel corridors in narrow, irregular spaces based on finite element simulation analysis. While ensuring construction efficiency, the method uses support frames and suspended connection devices to unload the components of the steel corridor one by one, preventing excessive deflection at mid-span and ensuring the safety of the steel structure corridor construction. When facing undulating terrain, support frames of different heights can be used to support the main beam, thus effectively addressing terrain issues.

[0004] This invention is achieved by the following technical solution:

[0005] The construction method of steel connecting corridor in narrow, irregular spaces based on finite element simulation analysis is as follows:

[0006] S1: In the MIDAS software, build a construction platform according to the actual size and shape of the narrow, irregular space;

[0007] S2: Import the design structure of the steel connecting corridor into the MIDAS software to generate a three-dimensional entity. Assemble the three-dimensional entity onto the construction platform to form the construction structure of the narrow and irregularly shaped steel connecting corridor. Build a construction simulation model of the steel connecting corridor in the MIDAS software.

[0008] S3: In MIDAS software, the finite element simulation analysis module calls industry construction standard data, material property library and stress analysis unit to perform segmented finite element simulation analysis on the construction simulation model of the steel connecting corridor, and finds materials, structures and dimensions in the original design that do not meet the standard requirements, and provides multiple feasible solutions. Then, the simulation is repeated until the standard requirements are met; the solution that meets the standard requirements is selected, and then the cost analysis module is called to obtain a reasonable construction structure and construction steps.

[0009] S4: Export the construction simulation model data of the steel connecting corridor using MIDAS software to generate drawings of each component and specific construction steps;

[0010] S5: Process the construction structure according to the part drawings, assemble the construction structure according to the specific construction steps, and then carry out the concrete pouring and construction of the narrow and irregular space steel corridor.

[0011] Furthermore, the construction structure of the narrow, irregularly shaped steel corridor includes main beams, supporting frames, suspended connection devices, longitudinal beams, secondary beams, and steel truss floor slabs; the main beams include bottom main beams and top main beams; the suspended connection devices include horizontal connection devices, vertical connecting I-beams, and pre-embedded connection parts set on the building walls; the bottom main beams are hoisted to the designed height, and the horizontal connection devices at both ends of the bottom main beams are horizontally fixed to the pre-embedded connection parts, and the horizontal connection devices are fixed to the bottom main beams via the vertical connecting I-beams; after a set of bottom main beams are fixed to the designed height via the suspended connection devices, the optimal support points at the bottom of the set of bottom main beams are supported by supporting frames; then the longitudinal beams between the set of bottom main beams are installed, and transverse secondary beams are installed between adjacent longitudinal beams; after the secondary beams are installed, the bottom main beams are... Cross tie rods are installed between the longitudinal beams at both ends of the main beam. Then, steel truss floor decking is laid on the longitudinal beams and secondary beams, and edge plates are installed between the steel truss floor decking and the bottom main beam. Concrete is then poured on the steel truss floor decking. After the concrete on the bottom main beam reaches its strength, vertical and diagonal support rods are installed on the upper surface of the bottom main beam. After installation, a set of top main beams is hoisted onto the vertical support rods for support, and the top main beams are connected to the vertical support rods. After installation, longitudinal beams, secondary beams, and cross tie rods are installed on the set of top main beams. After construction, steel truss floor decking is laid on the longitudinal beams and secondary beams of the top main beam, and edge plates are installed between the steel truss floor decking and the top main beam. Concrete is then poured on the steel truss floor decking of the top main beam.

[0012] Furthermore, the horizontal connecting device includes a suspended connecting plate, a horizontal I-beam, a diagonal bracing I-beam, and a connecting steel plate; one end of the horizontal I-beam is vertically welded and fixed to the side of the suspended connecting plate, and the other end has a diagonal bracing I-beam and a vertically downward connecting steel plate fixed to its side; the other end of the diagonal bracing I-beam is welded to the side of another suspended connecting plate; the connecting steel plate is fixed to the bottom main beam by vertical connecting I-beams.

[0013] Furthermore, the connecting embedded parts include embedded screws, embedded load-bearing rods, and embedded steel plates; the embedded steel plates, vertical connecting I-beams, suspended connecting plates, and connecting steel plates are all provided with connecting holes; one side of the embedded steel plate is provided with embedded load-bearing rods and embedded screws, and the other side of the embedded steel plate is connected and fixed to the suspended connecting plate; a set of connecting embedded parts are connected and fixed to the suspended connecting plates on the horizontal I-beams and diagonal bracing I-beams of the horizontal connecting device respectively through the embedded steel plates; the embedded screws are fixed by nut assemblies after passing through the connecting holes of the embedded steel plates and suspended connecting plates; the connecting steel plates and vertical connecting I-beams are connected and fixed by bolt assemblies passing through the connecting holes.

[0014] Furthermore, the main beam is divided into three sections based on finite element simulation analysis and the tower crane's allowable lifting weight range: the two ends and the middle section of the main beam. When lifting the bottom main beam, the two ends are lifted first and fixedly connected to the suspended connection device. Then, the middle section of the bottom main beam is lifted and fixedly connected to the two ends of the bottom main beams on both sides. Then, the support frame is placed at the bottom of the connection between the middle section of the bottom main beam and the two ends of the bottom main beams on both sides. When lifting the top main beam, steel cables are passed through the lifting holes set on the two ends of the top main beam for lifting. Then, the middle section of the top main beam is lifted and fixedly connected to the two ends of the top main beams on both sides.

[0015] Furthermore, scissor braces are installed between the vertical support rods at both ends of the bottom main beam; the diagonal support rods are W-shaped after installation.

[0016] Furthermore, the support frame includes a U-shaped support member, a support pole, an operating platform, a lower support plate, an anti-slip base plate, a ladder, an entrance / exit, a cover plate, and an upper support plate; the upper surface of the support pole is fixed with a U-shaped support member for supporting the main beam, the side of the support pole is supported and fixed to the operating platform on the circumference of the support pole by the upper support plate, and the lower end of the support pole is fixedly supported by the anti-slip base plate by the lower support plate; an entrance / exit is provided on the operating platform, and a cover plate is provided on the entrance / exit; a ladder in the vertical direction corresponding to the entrance / exit is also provided on the support pole.

[0017] Furthermore, the outer surface of the vertical support rod is provided with glass curtain wall embedded parts for installing the glass curtain wall.

[0018] Furthermore, after the concrete pouring on the bottom and top main beams is completed, the connecting holes on the horizontal I-beams of the bottom main beam are connected by construction safety cables, which are used to fasten the safety belts worn by construction workers when they are painting and installing the glass curtain wall.

[0019] Furthermore, after the construction of the narrow and irregularly shaped steel corridor is completed, the steel cables, construction safety cables, horizontal connecting devices, vertical connecting I-beams, and supporting frames are removed and recycled.

[0020] In summary, the present invention has the following beneficial effects: The present invention uses MIDAS software for modeling and finite element simulation analysis, and then uses a support frame and a suspended connection device to unload the components of the steel corridor one by one, preventing excessive deflection at mid-span, making full use of existing hoisting equipment, and the support frame can be set according to the construction terrain, which not only ensures the safety of the construction of the steel corridor in narrow and irregular spaces, but also ensures the economy and efficiency of the construction, optimizes the construction process, reduces the need for high-altitude welding operations in the later stage, reduces construction safety risks, shortens the construction period, and reduces construction costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall construction structure of the present invention (in order to clearly show the structure, a steel truss floor slab is laid on the bottom main beam, but no steel truss floor slab is laid on the top main beam, and no concrete has been poured).

[0022] Figure 2 This is a schematic diagram of the construction structure of the bottom main beam of the present invention.

[0023] Figure 3 This is a schematic diagram of the suspended connection device of the present invention.

[0024] Figure 4 This is a schematic diagram of the vertical connecting I-beam structure of the present invention.

[0025] Figure 5 This is a schematic diagram of the connection embedded part structure of the present invention.

[0026] Figure 6 This is a schematic diagram of the horizontal connection device of the present invention.

[0027] Figure 7 This is a schematic diagram of the supporting frame (including the protective cage) structure of the present invention.

[0028] Figure 8 This is a schematic diagram of the supporting frame (protective cage not shown) structure of the present invention.

[0029] Figure 9 This is a partial structural diagram of the installation of the glass curtain wall embedded parts of the present invention.

[0030] in:

[0031] Main beam 1;

[0032] Support frame 2; U-shaped support 21; support pole 22; operating platform 23; lower support plate 24; anti-slip base plate 25; ladder 26; entrance / exit 27; cover plate 28; upper support plate 29;

[0033] Suspended connection device 3; Horizontal connection device 31; Vertical connection I-beam 32; Connecting embedded part 33; Suspended connection plate 311; Connecting hole 312; Horizontal I-beam 313; Diagonal brace I-beam 314; Connecting steel plate 315; Embedded screw 331; Embedded load-bearing rod 332; Embedded steel plate 333;

[0034] 4. Longitudinal beam; 5. Secondary beam; 6. Cross tie rod; 7. Steel truss floor deck; 8. Edge trim; 9. Shear brace; 10. Vertical support rod; 11. Diagonal support rod; 12. Steel cable; 13. Construction safety cable; 14. Embedded parts for glass curtain wall. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0036] like Figures 1 to 9 As shown, this invention provides a construction method for steel connecting corridors in narrow, irregularly shaped spaces based on finite element simulation analysis. The steps are as follows:

[0037] S1: In the MIDAS software, build a construction platform according to the actual size and shape of the narrow, irregular space;

[0038] S2: Import the design structure of the steel connecting corridor into the MIDAS software to generate a three-dimensional entity. Assemble the three-dimensional entity onto the construction platform to form the construction structure of the narrow and irregularly shaped steel connecting corridor. Build a construction simulation model of the steel connecting corridor in the MIDAS software.

[0039] S3: In MIDAS software, the finite element simulation analysis module calls industry construction standard data, material property library and stress analysis unit to perform segmented finite element simulation analysis on the construction simulation model of the steel connecting corridor, and finds materials, structures and dimensions in the original design that do not meet the standard requirements, and provides multiple feasible solutions. Then, the simulation is repeated until the standard requirements are met; the solution that meets the standard requirements is selected, and then the cost analysis module is called to obtain a reasonable construction structure and construction steps.

[0040] S4: Export the construction simulation model data of the steel connecting corridor using MIDAS software to generate drawings of each component and specific construction steps;

[0041] S5: Process the construction structure according to the part drawings, assemble the construction structure according to the specific construction steps, and then carry out the concrete pouring and construction of the narrow and irregular space steel corridor.

[0042] As a preferred embodiment: such as Figures 1 to 6 As shown, the construction structure of the narrow, irregularly shaped steel corridor includes a main beam 1, a supporting frame 2, a suspended connection device 3, longitudinal beams 4, secondary beams 5, and a steel truss floor slab 7. The main beam 1 includes a bottom main beam and a top main beam. The suspended connection device 3 includes a horizontal connection device 31, a vertical connecting I-beam 32, and a connecting embedded part 33 set on the building wall. The bottom main beam is hoisted to the designed height, and the horizontal connection devices 31 at both ends of the bottom main beam are horizontally fixed to the connecting embedded parts 33. The horizontal connection devices 31 are then connected to the vertical connecting parts 33. The connecting I-beam 32 is fixed to the bottom main beam; after fixing a set of bottom main beams to the design height through the suspended connection device 3, the bottom optimal support points of the set of bottom main beams are supported by the support frame 2; then the longitudinal beams 4 between the set of bottom main beams are installed, and the transverse secondary beams 5 are installed between adjacent longitudinal beams 4; after the secondary beams 5 are installed, cross tie rods 6 are installed between the longitudinal beams 4 at both ends of the set of bottom main beams, and then steel truss floor deck 7 is laid and installed on the longitudinal beams 4 and secondary beams 5. An edge trim plate 8 is installed between the slab 7 and the bottom main beam. The edge trim plate 8 is an L-shaped edge trim plate, which is welded to the steel truss on the steel truss floor deck 7. Then, concrete is poured on the steel truss floor deck 7. Before the installation of the steel truss floor deck 7, a baseline is marked at both ends of the steel truss floor deck 7. The distance from the flange edge of the main beam is the design requirement for the lap length of the steel truss floor deck 7 on the steel beam to ensure support stability. After the concrete on the bottom main beam reaches its strength, vertical support rods 10 and diagonal support rods 10 are installed on the upper surface of the bottom main beam. After the support rod 11 is installed, a set of top main beams is hoisted onto the vertical support rod 10 for support, and the top main beams are connected to the vertical support rods 10. After installation, the longitudinal beams 4, secondary beams 5 and cross tie rods 6 are installed on the set of top main beams. After construction, the steel truss floor deck 7 is laid on the longitudinal beams 4 and secondary beams 5 on the top main beams, and the edge plate 8 is set between the steel truss floor deck 7 and the top main beams. Then, concrete is poured on the steel truss floor deck 7 of the top main beams. Modeling was performed using MIDAS software, followed by finite element simulation analysis. Then, the components of the steel corridor were unloaded one by one using the support frame 2 and the suspended connection device 3 to prevent excessive deflection at mid-span. This also made full use of existing hoisting equipment. Furthermore, the support frame 2 can be set according to the terrain, ensuring both the safety of the construction of the steel corridor in narrow and irregular spaces and the economy and efficiency of the construction. This optimized the construction process, reduced the need for high-altitude welding operations in the later stages, lowered construction safety risks, shortened the construction period, and reduced construction costs.

[0043] As a preferred embodiment, such as Figure 3 , Figure 4 and Figure 6 As shown, the horizontal connecting device 31 includes a suspended connecting plate 311, a horizontal I-beam 313, a diagonal bracing I-beam 314, and a connecting steel plate 315. One end of the horizontal I-beam 313 is vertically welded and fixed to the side of the suspended connecting plate 311, and the other end of the horizontal I-beam 313 is respectively fixed with the diagonal bracing I-beam 314 and the vertically downward connecting steel plate 315. The other end of the diagonal bracing I-beam 314 is welded to the side of another suspended connecting plate 311. The connecting steel plate 315 is fixed to the bottom main beam through a vertical connecting I-beam 32.

[0044] As a preferred embodiment, such as Figure 3 and Figure 5 As shown, the connecting embedded parts 33 include embedded screws 331, embedded load-bearing rods 332, and embedded steel plates 333; the embedded steel plates 333, vertical connecting I-beams 32, suspended connecting plates 311, and connecting steel plates 315 are all provided with connecting holes 312; one side of the embedded steel plate 333 is provided with embedded load-bearing rods 332 and embedded screws 331, and the other side of the embedded steel plate 333 is connected and fixed to the suspended connecting plates 311 on the horizontal I-beams 313 and diagonal bracing I-beams 314 of the horizontal connecting device 31 respectively through the embedded steel plates 333; the embedded screws 331 are fixed by nut assemblies after passing through the connecting holes 312 of the embedded steel plates 333 and the suspended connecting plates 311; the connecting steel plates 315 and vertical connecting I-beams 32 are connected and fixed by bolt assemblies passing through the connecting holes 312. The pre-embedded screw 331 has threads on one end and a bent portion on the other. The threaded portion extends outward from the pre-embedded steel plate 333, and the bent portion is connected and fixed to the internal reinforcing steel bars of the wall. The pre-embedded load-bearing rod 332 is welded to the pre-embedded steel plate 333 at one end and has a bent portion at the other end. The pre-embedded load-bearing rod 332 is connected to the internal reinforcing steel bars of the wall as a whole. The pre-embedded screw 331 and the pre-embedded load-bearing rod 332 improve the stability of the steel corridor construction structure. By connecting the pre-embedded parts 33, the process can be optimized, reducing subsequent high-altitude welding operations, thereby reducing construction safety risks, shortening the construction period, and reducing construction costs.

[0045] As a preferred embodiment, such as Figure 1 and Figure 2As shown, the main beam 1 is divided into three sections based on finite element simulation analysis and the allowable lifting weight range of the tower crane: the two ends of the main beam and the middle section of the main beam. When the bottom main beam is lifted, the two ends of the bottom main beam are lifted first and fixedly connected to the suspended connection device 3. Then, the middle section of the bottom main beam is lifted and fixedly connected to the two ends of the bottom main beams on both sides. Then, the support frame 2 is set at the bottom of the connection between the middle section of the bottom main beam and the two ends of the bottom main beams on both sides. When the top main beam is lifted, it is lifted by passing steel cables 12 through the lifting holes set on the two ends of the top main beam. Then, the middle section of the top main beam is lifted and fixedly connected to the two ends of the top main beams on both sides. By using MIDAS software for finite element simulation analysis, the steel connecting corridor was segmented. The main beam was divided into 3 segments, while the secondary beams were not segmented. The focus was on the rationality, economy, and feasibility of on-site assembly of the segmented structure. The steel connecting corridor could be segmented and hoisted according to the actual situation based on the tower crane specifications of the construction team. This ensured that the weight of each steel beam was within the allowable lifting weight range of the tower crane, reducing construction costs. It also avoided the inconvenience of using large tower cranes in confined spaces, resulting in faster and more efficient on-site construction.

[0046] In a preferred embodiment, scissor braces 9 are provided between the vertical support rods 10 at both ends of the bottom main beam; the diagonal support rods 11 are W-shaped after installation.

[0047] As a preferred embodiment, such as Figure 7 and Figure 8 As shown, the support frame 2 includes a U-shaped support member 21, a support pole 22, an operating platform 23, a lower support plate 24, an anti-slip base plate 25, a ladder 26, an entrance / exit 27, a cover plate 28, and an upper support plate 29; the upper surface of the support pole 22 is fixed with a U-shaped support member 21 for supporting the main beam 1, the side of the support pole 22 is supported and fixed to the operating platform 23 on the circumference of the support pole 22 by the upper support plate 29, and the lower end of the support pole 22 is fixedly supported by the anti-slip base plate 25 by the lower support plate 24; the operating platform 23... An entrance / exit 27 is provided, and a cover plate 28 is provided on the entrance / exit 27. The cover plate 28 can be opened to facilitate workers to get on and off the operating platform, while closing it can ensure the safety of their feet during construction on the operating platform 23. A ladder 26 corresponding to the entrance / exit 27 is also provided on the support pole 22 for workers to get on and off the operating platform 23. The operating platform 23 and the protective cage provided on the operating platform 23 ensure the safety of construction. The lower support plate 24, the anti-slip base plate 25 and the upper support plate 29 are used to ensure the stability of the support frame 2. Depending on the different construction terrain, the height of the support frame 2 can be adjusted, and the shape of the anti-slip base plate 25 and the ground can be adjusted accordingly to achieve a stable connection.

[0048] As a preferred embodiment, such as Figure 9As shown, the outer surface of the vertical support rod 10 is provided with a glass curtain wall embedded part 14 for installing the glass curtain wall.

[0049] As a preferred embodiment, after the concrete is poured on the bottom main beam and the top main beam, the connecting holes 312 on the horizontal I-beam 313 of the bottom main beam are connected by the construction safety cable 13, which is used to fasten the safety belts worn by the construction workers when they are painting and installing the glass curtain wall.

[0050] As a preferred embodiment, after the construction of the steel connecting corridor in the narrow and irregular space is completed, the steel cable 12, construction safety cable 13, horizontal connecting device 31, vertical connecting I-beam 32 and supporting frame 2 are removed and recycled.

[0051] Although the specific embodiments of the present invention have been described and explained in detail above, it should be noted that various equivalent changes and modifications can be made to the above embodiments based on the concept of the present invention, and the resulting functions and effects do not exceed the spirit covered by the specification, and all such changes and modifications should be within the protection scope of the present invention.

Claims

1. A construction method for steel connecting corridors in narrow, irregular spaces based on finite element simulation analysis, characterized by: The steps are as follows: S1: In the MIDAS software, build a construction platform according to the actual size and shape of the narrow, irregular space; S2: Import the design structure of the steel connecting corridor into the MIDAS software to generate a three-dimensional entity. Assemble the three-dimensional entity onto the construction platform to form the construction structure of the narrow and irregularly shaped steel connecting corridor. Build a construction simulation model of the steel connecting corridor in the MIDAS software. S3: In MIDAS software, the finite element simulation analysis module calls industry construction standard data, material property library and stress analysis unit to perform segmented finite element simulation analysis on the construction simulation model of the steel connecting corridor, and finds materials, structures and dimensions in the original design that do not meet the standard requirements, and provides multiple feasible solutions. Then, the simulation is repeated until the standard requirements are met; the solution that meets the standard requirements is selected, and then the cost analysis module is called to obtain a reasonable construction structure and construction steps. S4: Export the construction simulation model data of the steel connecting corridor using MIDAS software to generate drawings of each component and specific construction steps; S5: Process the construction structure according to the part drawings, assemble the construction structure according to the specific construction steps, and then carry out the concrete pouring and construction of the narrow and irregular space steel corridor. The construction structure of the narrow, irregularly shaped steel corridor includes main beams, supporting frames, suspended connection devices, longitudinal beams, secondary beams, and steel truss floor slabs. The main beams include bottom and top main beams. The suspended connection devices include horizontal connection devices, vertical connecting I-beams, and pre-embedded connection parts installed on the building walls. The bottom main beams are hoisted to the designed height, and the horizontal connection devices at both ends of the bottom main beams are horizontally fixed to the pre-embedded connection parts. The horizontal connection devices are then fixed to the bottom main beams via the vertical connecting I-beams. After a set of bottom main beams is fixed to the designed height via the suspended connection devices, the optimal support points at the bottom of each set of bottom main beams are supported by supporting frames. Then, the longitudinal beams between the set of bottom main beams are installed, and transverse secondary beams are installed between adjacent longitudinal beams. After the secondary beams are installed, the bottom main beams are... Cross tie rods are installed between the longitudinal beams at both ends. Then, steel truss floor decking is laid on the longitudinal beams and secondary beams, and edge plates are installed between the steel truss floor decking and the bottom main beam. Concrete is then poured on the steel truss floor decking. After the concrete on the bottom main beam reaches its strength, vertical and diagonal support rods are installed on the upper surface of the bottom main beam. After installation, a set of top main beams is hoisted onto the vertical support rods for support, and the top main beams are connected to the vertical support rods. After installation, longitudinal beams, secondary beams, and cross tie rods are installed on the set of top main beams. After construction, steel truss floor decking is laid on the longitudinal beams and secondary beams on the top main beam, and edge plates are installed between the steel truss floor decking and the top main beam. Concrete is then poured on the steel truss floor decking of the top main beam.

2. The construction method for a steel connecting corridor in a narrow, irregular space based on finite element simulation analysis according to claim 1, characterized in that: The horizontal connecting device includes a suspended connecting plate, a horizontal I-beam, a diagonal bracing I-beam, and a connecting steel plate; one end of the horizontal I-beam is vertically welded and fixed to the side of the suspended connecting plate, and the other end is respectively fixed with a diagonal bracing I-beam and a vertically downward connecting steel plate; the other end of the diagonal bracing I-beam is welded to the side of another suspended connecting plate; the connecting steel plate is fixed to the bottom main beam by vertical connecting I-beams.

3. The construction method for a steel connecting corridor in a narrow, irregular space based on finite element simulation analysis according to claim 1, characterized in that: The connecting embedded parts include embedded screws, embedded load-bearing rods, and embedded steel plates; the embedded steel plates, vertical connecting I-beams, suspended connecting plates, and connecting steel plates are all provided with connecting holes; one side of the embedded steel plate is provided with embedded load-bearing rods and embedded screws, and the other side of the embedded steel plate is connected and fixed to the suspended connecting plate; a set of connecting embedded parts are connected and fixed to the suspended connecting plates on the horizontal I-beams and diagonal bracing I-beams of the horizontal connecting device respectively through the embedded steel plates; the embedded screws are fixed by nut assemblies after passing through the connecting holes of the embedded steel plates and suspended connecting plates; the connecting steel plates and vertical connecting I-beams are connected and fixed by bolt assemblies passing through the connecting holes.

4. The construction method for a steel connecting corridor in a narrow, irregular space based on finite element simulation analysis according to claim 1, characterized in that: The main beam is divided into three sections based on finite element simulation analysis and the tower crane's allowable lifting weight range: the two ends and the middle section. When lifting the bottom main beam, the two ends are lifted first and fixedly connected to the suspended connection device. Then, the middle section is lifted and fixedly connected to the two ends of the bottom main beams on both sides. A support frame is then placed at the bottom of the connection point between the middle section of the bottom main beam and the two ends of the bottom main beams on both sides. When lifting the top main beam, steel cables are passed through the lifting holes on the two ends of the top main beam for lifting. Then, the middle section of the top main beam is lifted and fixedly connected to the two ends of the top main beams on both sides.

5. The construction method for a steel connecting corridor in a narrow, irregular space based on finite element simulation analysis according to claim 4, characterized in that: The vertical support rods at both ends of the bottom main beam are provided with scissor bracing; the diagonal support rods are W-shaped after installation.

6. The construction method for a steel connecting corridor in a narrow, irregular space based on finite element simulation analysis according to claim 1, characterized in that: The support frame includes a U-shaped support member, a support pole, an operating platform, a lower support plate, an anti-slip base plate, a ladder, an entrance / exit, a cover plate, and an upper support plate. A U-shaped support member for supporting the main beam is fixed to the upper surface of the support pole. The side of the support pole is supported and fixed to the operating platform on the circumference of the support pole via the upper support plate. The lower end of the support pole is fixedly supported by the anti-slip base plate via the lower support plate. An entrance / exit is provided on the operating platform, and a cover plate is provided above the entrance / exit. A ladder in the vertical direction corresponding to the entrance / exit is also provided on the support pole.

7. The construction method for a steel connecting corridor in a narrow, irregular space based on finite element simulation analysis according to claim 1, characterized in that: The outer surface of the vertical support rod is provided with glass curtain wall embedded parts for installing the glass curtain wall.

8. The construction method for a steel connecting corridor in a narrow, irregular space based on finite element simulation analysis according to claim 3, characterized in that: After the concrete is poured on the bottom and top main beams, the connecting holes on the horizontal I-beams of the bottom main beams are connected by construction safety cables. These cables are used to secure the safety belts worn by construction workers during plastering and glass curtain wall installation.

9. The construction method for a steel connecting corridor in a narrow, irregular space based on finite element simulation analysis according to claim 8, characterized in that: After the construction of the steel connecting corridor in the narrow and irregular space is completed, the steel cables, construction safety cables, horizontal connecting devices, vertical connecting I-beams and supporting frames are removed and recycled.

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