Full-process automatic design method and system for concrete silo structure

Abstract

The invention discloses a full-process automatic design method and system for a concrete silo structure, and belongs to the technical field of design of concrete silo knots.The full-process automatic design method comprises the steps that S1, a parameter set of the concrete silo structure is obtained; s2, constructing a static calculation engine based on national standard specifications, and automatically executing silo wall internal force calculation, warehouse bottom plate stress analysis and foundation structure mechanical analysis according to the parameter set; the reinforcement area of each part of the silo is calculated; s3, in combination with the calculation result of the reinforcement area of each part of the silo, an intelligent reinforcement selection algorithm is adopted to automatically generate a reinforcement configuration scheme meeting strength, crack and construction constraints; s4, a DXF-format construction drawing and an EXCEL-format steel bar blanking list are automatically generated based on a templated drawing system; and S5, the silo structure model parameters and the steel bar configuration scheme are automatically converted into a BIM model through a Revit secondary development interface, and a complete BIM delivery result containing a concrete member parameterized model and a steel bar three-dimensional model is generated.

Description

Technical Field

[0001] This invention belongs to the field of concrete silo structure design technology, specifically relating to a fully automated design method and system for concrete silo structures. It is particularly suitable for the standardized design and intelligent delivery of special structures such as industrial silos and grain silos. By integrating parameter input, static calculation, intelligent reinforcement selection, construction drawing generation, and BIM model output, it solves problems such as low efficiency, difficulty in collaboration, and disconnect between design and construction in traditional design processes. Background Technology

[0002] In the traditional design process of concrete silo structures, designers typically rely on manual calculations and collaboration among multiple professional teams to complete the design task. However, this traditional design method has some significant shortcomings, specifically in the following aspects:

[0003] First, low design efficiency is a prominent problem. In the process of calculating the internal forces and designing the reinforcement of the silos, designers need to complete these tasks manually one by one, which not only consumes a lot of time and energy, but also reduces the efficiency of the entire design process.

[0004] Secondly, collaboration between different professional teams presents challenges. Structural designers, construction teams, and BIM teams need to constantly communicate and coordinate to ensure the accuracy and consistency of design data. However, in practice, this communication often encounters problems, leading to data inconsistencies and consequently affecting the accuracy of the entire design scheme.

[0005] Third, there is a disconnect between design and construction. In the traditional design process, construction drawings and BIM models are often separate, which means that during the construction phase, the construction team may need to make secondary adjustments to the design to ensure the smooth progress of construction.

[0006] Fourth, insufficient economic efficiency is also a problem with traditional design methods. In the process of manually selecting reinforcement bars, designers often find it difficult to find a balance between safety and material costs, which leads to a high rate of steel bar waste and increases the overall project cost.

[0007] Finally, traditional design methods have poor compatibility with standards. Design parameters are prone to exceeding national standards, which increases the risk of rework and affects the overall project schedule and quality.

[0008] While some existing design software supports parametric modeling, they often lack dedicated modules for silo structures and have shortcomings in reinforcement selection optimization and BIM delivery capabilities. For example, conventional BIM tools require manual configuration of the reinforcement model and cannot automatically adapt to code requirements; while construction drawing generation tools are difficult to integrate with the calculation engine. This leads to extended design iteration cycles and further impacts design efficiency.

[0009] This invention proposes a fully automated solution by integrating parameterized driving and algorithms, achieving seamless integration from design to construction and filling a technological gap in the industry. Summary of the Invention

[0010] The purpose of this invention is to provide an automated design method and system for concrete silo structures. By using parametric input, static calculation, intelligent reinforcement selection, and cross-platform output, it solves the problems of low efficiency, poor coordination, and insufficient economy in traditional design, and realizes the synchronous generation of BIM models and construction drawings.

[0011] The first objective of this invention is to provide a fully automated design method for concrete silo structures, comprising:

[0012] Step S01: Obtain the parameter set of the concrete silo structure, including model parameters, load parameters, reinforcement selection parameters, structural parameters, and material parameters;

[0013] Step S02: Construct a static calculation engine based on national standards and specifications, and automatically perform internal force calculation of silo wall, stress analysis of silo bottom plate and mechanical analysis of foundation structure according to the parameter set; complete the calculation of reinforcement area of ​​each part of silo;

[0014] Step S03: Based on the calculation results of the reinforcement area of ​​each part of the silo, the intelligent reinforcement selection algorithm is used to automatically generate a reinforcement configuration scheme that meets the strength, crack and construction constraints;

[0015] Step S04: Based on the template-based drawing system, automatically generate DXF format construction drawings and EXCEL format steel reinforcement cutting list according to the silo structure parameter set and steel reinforcement configuration scheme;

[0016] Step S05: Automatically convert the silo structure model parameters and reinforcement configuration scheme into a BIM model through the Revit secondary development interface, and generate a complete BIM deliverable including parametric models of concrete components and 3D models of reinforcement.

[0017] The second objective of this invention is to provide a fully automated design system for concrete silo structures, comprising:

[0018] Parameter input module: Obtains the parameter set of the concrete silo structure, including model parameters, load parameters, reinforcement selection parameters, structural parameters, and material parameters;

[0019] The calculation engine module is built based on national standards and specifications to construct a static calculation engine. It automatically performs internal force calculations of the silo wall, stress analysis of the silo bottom plate, and mechanical analysis of the foundation structure according to the parameter set; and completes the calculation of the reinforcement area of ​​each part of the silo.

[0020] Intelligent reinforcement selection module: Based on the calculation results of the reinforcement area of ​​each part of the silo, the intelligent reinforcement selection algorithm automatically generates a reinforcement configuration scheme that meets the strength, crack and construction constraints;

[0021] Construction drawing generation module: Based on the template-based drawing system, it automatically generates DXF format construction drawings and EXCEL format steel reinforcement cutting lists according to the silo structure parameter set and steel reinforcement configuration scheme;

[0022] BIM Interface Module: Automatically converts silo structure model parameters and reinforcement configuration schemes into BIM models through the Revit secondary development interface, generating a complete BIM deliverable including parametric models of concrete components and 3D models of reinforcement.

[0023] The modules are connected via a standardized JSON data interface, and the system’s built-in knowledge base includes an industry standard database, an engineering case library, and an expert experience rule library.

[0024] Compared with the prior art, the present invention has the following technical effects:

[0025] This invention addresses the problems of low efficiency in manual calculations, difficulties in multi-disciplinary collaboration, and the disconnect between construction drawings and BIM models in traditional silo design processes. It proposes a comprehensive solution integrating parameter input, intelligent reinforcement selection, and cross-platform output. The system includes a parameter input module, a calculation engine module, a reinforcement selection optimization module, a construction drawing generation module, and a BIM interface module. Users input parameters such as silo shape, load, and materials, and the system automatically uses national standard formulas to calculate internal forces. An intelligent reinforcement selection algorithm optimizes reinforcement configuration, balancing economy and safety. Based on the Revit API, a parametric BIM model is generated synchronously, and construction drawings and material lists are output. Furthermore, the system introduces a construction compatibility verification mechanism; a BIM-based conflict analysis engine uses virtual simulation to detect reinforcement collisions and construction conflicts. This invention, through modular design and algorithm integration, significantly improves design efficiency and accuracy, solving problems such as design-construction disconnect and data silos across multiple platforms in traditional methods. It is suitable for the standardized design and intelligent delivery of special structures such as industrial silos and grain silos.

[0026] The overall technical effects of this invention include: 1. Increased efficiency: The design cycle is shortened by more than 50%, and the amount of manual calculation is reduced by 80%; 2. Optimized economy: Intelligent reinforcement selection reduces the amount of steel bars used by 10%-15%; 3. Enhanced accuracy: 100% standard compatibility rate, and the consistency between construction drawings and BIM models reaches more than 95%; 4. Reduced construction risks: Virtual simulation identifies more than 90% of collision problems in advance.

[0027] This invention employs a multi-objective optimization algorithm, prioritizing the matching of economy (minimum total weight) and construction adaptability (spacing module, node avoidance);

[0028] This invention supports automatic switching between double-layer reinforcement, solving the problem of insufficient single-layer reinforcement area;

[0029] This invention incorporates conflict detection rules to avoid node conflicts with vertical reinforcing bars.

[0030] In this invention, the construction drawing generation module automatically outputs DXF format construction drawings and EXCEL material lists based on a template-based system, covering plan views, sectional views, and detailed node drawings for various silo types. Structural details such as anchorage length, bending angle, lap length, and lap percentage are automatically adapted to standards such as GB 50010-2010 and GB 50077-2017, reducing manual verification.

[0031] In this invention, the BIM interface module functions as follows: It generates a parametric BIM model, including 3D models of silo concrete components and reinforcing bars, through a Revit secondary development interface. It supports reinforcing bar merging and numbering management to ensure consistency between the model and construction drawings and material lists; it detects reinforcing bar collisions through a BIM conflict analysis engine to proactively mitigate construction risks. The reinforcing bars generated from the model meet relevant specifications, calculation manuals, and design requirements, and include built-in requirements for excessively long reinforcing bars, lap splicing, and anchorage. It automatically cuts and generates additional reinforcing bars at openings. It assigns unique component numbers, design numbers, and detail numbers to reinforcing bars of different locations, types, and shapes. All reinforcing bars are merged according to reasonable tolerances and then assigned a reinforcing bar number.

[0032] In this invention, the construction adaptability verification mechanism functions as follows: based on virtual simulation technology, it verifies the construction feasibility of the reinforcement layout. By dynamically simulating the construction process using a BIM model, it identifies issues such as excessive jump distances and node conflicts, and feeds this information back to the design team for optimization. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the system architecture of a preferred embodiment of the present invention;

[0034] Figure 2 This is a flowchart of the intelligent reinforcement selection algorithm for the silo wall ring reinforcement according to a preferred embodiment of the present invention;

[0035] Figure 3 This is a plan view and a schematic diagram of the arrangement of the circumferential reinforcement bars in the silo wall according to a preferred embodiment of the present invention;

[0036] Figure 4 This is a material list for the silo wall ring reinforcement of a preferred embodiment of the present invention;

[0037] Figure 5 This is an example diagram of a BIM model according to a preferred embodiment of the present invention. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only a part of the embodiments of the present invention, and not all of them. Generally, the embodiments of the present invention described and shown in the accompanying drawings are characteristic technologies and solutions. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0039] Please see Figures 1 to 5 .

[0040] A fully automated design method and system for concrete silo structures includes the following steps:

[0041] Step S01: Receive the silo structure parameter set input by the user through the human-computer interaction interface. The parameter set includes a model parameter module, a load parameter module, a reinforcement selection parameter module, a structural parameter module, and a material parameter module.

[0042] Step S02: Based on national standards and specifications, a static calculation engine is built to automatically perform internal force calculations of the silo wall, stress analysis of the silo bottom plate, and mechanical analysis of the foundation structure according to the input parameter set; the reinforcement area calculation of each part of the silo is completed.

[0043] Step S03: Based on the calculation results of the reinforcement area of ​​each part of the silo, the intelligent reinforcement selection algorithm is used to automatically generate a reinforcement configuration scheme that meets the strength, crack and construction constraints;

[0044] Step S04: Automatically generate DXF format construction drawings and EXCEL format steel reinforcement cutting list based on the template-based drawing system;

[0045] Step S05: Automatically convert the design results into a BIM model through the Revit secondary development interface, generating a complete BIM deliverable including parametric models of concrete components and 3D models of steel reinforcement.

[0046] To better understand the concept of this invention, the following non-limiting description is provided:

[0047] The model parameter module in step S01 includes key dimensional parameters such as silo inner diameter, silo height, foundation type, silo floor type, number of silos, and spacing. The parameter input interface employs a hierarchical verification mechanism to perform real-time compliance checks on the input value range. Automatic warnings and submission restrictions are triggered when input parameters exceed national standard ranges. Applicable silo types include: single silo, group silo, circular deep concrete silo, circular shallow concrete silo, unsupported ground-mounted silo, and supported silo. Applicable foundation types include: solid slab foundation, ring foundation, and separate foundation. Applicable silo floor types include: flat silo floor, funnel-shaped silo floor, and inverted cone-shaped silo floor.

[0048] The static calculation engine in step S02 incorporates the national standard ("Design Standard for Reinforced Concrete Silos" (GB)).

[0049] Following the calculation rules of the "Code for Design of Concrete Structures" (GB 50077-2017), "Code for Seismic Design of Buildings" (GB 50010-2010), and "Code for Seismic Design of Buildings" (GB50011-2016), load calculations (including storage load, wind load, temperature load, and seismic load) are performed on the silos, and internal force combinations are established to complete the overall mechanical analysis of the silos. Based on the "Handbook for Static Calculation of Building Structures" and the aforementioned codes, the internal forces and reinforcement area of ​​various parts of the silos are calculated. Specifically, this includes the calculation of internal forces and reinforcement area of ​​the foundation, walls, floor slab, internal columns, and openings.

[0050] The intelligent reinforcement selection algorithm in step S03 includes the following steps (taking the selection of silo wall ring reinforcement as an example):

[0051] S0301: Obtain the strength reinforcement area AS1 and crack reinforcement area AS2 from the static calculation results;

[0052] S0302: Based on the user-input reinforcement selection parameters (ring bar diameter selection library, preferred diameter, spacing limit, spacing modulus, minimum reinforcement ratio), calculate the comprehensive reinforcement area that satisfies AS = max(AS1,AS2).

[0053] S0303: Based on the comprehensive reinforcement area and combined with the reinforcement selection parameter constraints, generate a feasible solution set for the diameter and spacing of the ring reinforcement.

[0054] S030301: Diameter priority rule: Prioritize matching the preferred diameter specified by the user. If the preferred diameter cannot be matched, traverse the diameters in the reinforcement library in ascending order.

[0055] S030302: Spacing constraint rule: Generate a candidate spacing sequence based on the maximum / minimum spacing limit and round it to the nearest integer using a user-defined modulus;

[0056] S030303: Conflict handling mechanism: When the single-layer reinforcement cannot meet AS, the double-layer reinforcement mode is automatically triggered, and the spacing and diameter combination is recalculated.

[0057] S0304: Based on economic priority (such as minimum total steel weight) and construction adaptability rules (such as spacing module adaptability), select the optimal ring reinforcement configuration scheme from the feasible solution set.

[0058] S030401: The variation in the spacing between adjacent ring reinforcement bars shall not exceed twice the module to avoid construction jumps;

[0059] S030402: The diameter of the ring reinforcement remains constant within the same section of the warehouse wall, reducing processing errors;

[0060] S030403: Spacing value for automatically avoiding conflicts with vertical reinforcement nodes.

[0061] The template-based drawing system in step S04 includes:

[0062] S0401: Parametric construction drawing template library, supporting drawing standards for different types of silos;

[0063] S0402: Based on the reinforcement selection optimization results, automatically generate two-dimensional construction drawings (dxf format) including plan view, section view and node details, and mark the reinforcement specifications and numbers;

[0064] S0403: During the generation of construction drawings, the reinforcement anchorage, lap length and bending angle of the node details are automatically calculated based on the selected reinforcement parameters and comply with the relevant construction requirements of GB 50010-2010 "Code for Design of Concrete Structures".

[0065] S0404: The rebar cutting list clearly indicates the location of each rebar, and the design number corresponds to the rebar number marked on the drawing. The length, shape, and number are completely consistent with the rebar model in Revit.

[0066] The Revit secondary development interface in step S05 implements the following functions:

[0067] S0501: Automatically create a parametric concrete model of a silo, including the foundation, walls, bottom slab, internal columns, openings, and top slab.

[0068] S0502: The model-generated reinforcement meets relevant specifications, calculation manuals, and design requirements. It includes built-in structural requirements for column, beam, wall, and slab reinforcement, as well as requirements for extra-long splits and lap splices. Different components, design numbers, and detail numbers are assigned to different parts, models, and shapes of reinforcement. All reinforcement is grouped according to reasonable tolerances and then assigned a reinforcement number.

[0069] S0503: The BIM-based conflict analysis engine detects steel bar collisions and construction conflicts through virtual simulation.

[0070] A fully automated design system for concrete silo structures, used to implement the aforementioned automated design method for concrete silo structures, includes:

[0071] Parameter input module: Obtains the parameter set of the concrete silo structure, including model parameters, load parameters, reinforcement selection parameters, structural parameters, and material parameters;

[0072] The calculation engine module is built based on national standards and specifications to construct a static calculation engine. It automatically performs internal force calculations of the silo wall, stress analysis of the silo bottom plate, and mechanical analysis of the foundation structure according to the parameter set; and completes the calculation of the reinforcement area of ​​each part of the silo.

[0073] Intelligent reinforcement selection module: Based on the calculation results of the reinforcement area of ​​each part of the silo, the intelligent reinforcement selection algorithm automatically generates a reinforcement configuration scheme that meets the strength, crack and construction constraints;

[0074] Construction drawing generation module: Based on the template-based drawing system, it automatically generates DXF format construction drawings and EXCEL format steel reinforcement cutting lists according to the silo structure parameter set and steel reinforcement configuration scheme;

[0075] BIM Interface Module: Automatically converts silo structure model parameters and reinforcement configuration schemes into BIM models through the Revit secondary development interface, generating a complete BIM deliverable including parametric models of concrete components and 3D models of reinforcement.

[0076] The modules are connected via a standardized JSON data interface, enabling fully automated processing from parameter input to the BIM model. The system's built-in knowledge base includes an industry-standard database, an engineering case library, and an expert experience rule library.

[0077] The computing engine adopts a modular design and includes:

[0078] Submodule for calculating silo base reaction force and foundation dimensions under various load combinations;

[0079] Submodule for calculating basic radial force, circumferential force, radial reinforcement area, and circumferential reinforcement area;

[0080] Submodule for calculating the internal forces and reinforcement area of ​​multi-row warehouse foundations;

[0081] Submodule for calculating circumferential tensile force of silo walls, required reinforcement area for strength, and required reinforcement area for cracks;

[0082] Submodule for calculating radial force, circumferential force, radial reinforcement area, and circumferential reinforcement area of ​​the warehouse bottom slab;

[0083] Sub-module for calculating the punching, shear resistance, and minimum thickness of the warehouse floor slab and foundation;

[0084] Submodule for calculating torsional, shear, and tensile internal forces and reinforcement area of ​​inverted cone ring beams and funnel ring beams;

[0085] Submodule for calculating vertical force, axial compression ratio, and reinforcement area of ​​internal columns;

[0086] Calculation submodule for reinforcement bars at openings.

[0087] The core architecture of this invention includes the following modules and processes:

[0088] Parameter input module

[0089] Functions: Receives user-inputted silo model parameters (inner diameter, height, foundation type, silo bottom plate type, number of silos and spacing, etc.), load parameters (storage load, wind load, temperature load, seismic load, etc.), material parameters (concrete strength, steel grade, etc.), reinforcement selection parameters (steel diameter selection silo, preferred diameter, maximum and minimum spacing limits, spacing rounding modulus, reinforcement ratio, etc.), and structural parameters (non-stressed steel bar type, steel bar connection type and lap percentage, etc.).

[0090] Innovation: A hierarchical verification mechanism is adopted to check in real time whether the input parameters conform to the national standard range (such as GB 50077-2017, GB 50010-2010, etc.). When the threshold is exceeded, an automatic warning is issued and submission is restricted to avoid design errors.

[0091] Computing Engine Module

[0092] Function: Based on national standards (GB 50077-2017, GB 50010-2010, etc.) and the built-in static calculation rules of the "Handbook for Static Calculation of Building Structures", it automatically completes the calculation of internal forces of silo walls, internal forces of silo bottom slabs, base reaction forces, foundation dimensions, radial circumferential internal forces, internal forces of internal columns and axial compression ratios, and outputs the reinforcement area of ​​each part.

[0093] Innovations: Supports analysis of multiple load combinations (wind load + seismic load + storage load + temperature load + dead and live load), and achieves accurate calculation of complex structures (such as inverted cone ring beams and multi-row silo foundations) through modular subroutines.

[0094] Intelligent reinforcement selection module

[0095] Function: Based on the reinforcement area calculation results and combined with user-defined reinforcement selection parameters (diameter library, spacing module, etc.), generate a reinforcement configuration scheme that meets strength, crack, and construction constraints.

[0096] The following example uses a cement silo in a cement plant:

[0097] 1. Parameter input and verification:

[0098] Users input the following parameters through the human-computer interaction interface:

[0099] (1) Model parameters: The silo is a single silo with support; the inner diameter of the silo is 8m; the silo wall height is 9m; the silo wall thickness is 180mm; the cylinder wall height is 11.5m; the silo floor is a funnel-shaped floor with an angle of 55° to the horizontal plane; the foundation is a ring foundation with a thickness of 1.2m and a burial depth of 2.5m; (The location and size of the opening also need to be entered, which are not detailed here.)

[0100] (2) Load parameters: The stored material is cement, with a self-weight of 16 kN / m. 3 The internal friction angle is 30°, the friction coefficient is 0.5, the distance from the center of gravity of the material cone to the bottom plate of the silo is 8m; the equivalent height of the silo roof is 3m, the equivalent length of the silo roof is 5m, and the total weight is 100kN; the vertical pressure coefficient of the silo bottom is 1.0; the basic seismic intensity is 6 degrees, the characteristic period of the response spectrum is 0.45s; the standard value of wind load is 0.40N / m. 2 The surface roughness category is Class A;

[0101] (3) Reinforcement selection parameters: The foundation bearing capacity adjustment value is 245 kPa; the diameter of the shroud ring reinforcement is 14 mm, 16 mm, 18 mm, 20 mm, 22 mm, 25 mm, and 28 mm, with 20 mm being the preferred diameter. The spacing is rounded to the nearest whole number of 5 mm, with a minimum spacing limit of 50 mm and a maximum limit of 200 mm. The minimum total reinforcement ratio is 0.4%. (Only the reinforcement selection parameters for the shroud ring reinforcement are listed here; the reinforcement selection parameters for other parts are not listed one by one.)

[0102] (4) Material parameters: Concrete strength grade C30 (design value of axial compressive strength 14.3MPa), steel reinforcement grade HRB400 (design value of yield strength 360MPa)

[0103] (5) Structural parameters: The silo wall ring reinforcement is arranged at a fixed length (or can be evenly distributed according to the number of overlaps), with an overlap percentage of 50%; the number of full-circle skeleton reinforcements is 8, the diameter of the tie bars is 10mm, and the type of connecting bars is 8mm; (only the structural parameters related to the silo wall ring reinforcement are listed here, and the structural parameters of other parts are not listed one by one)

[0104] (6) Input verification mechanism: The system checks in real time whether each input parameter is within the range allowed by national standards. If the input value exceeds the range, a warning will pop up on the interface and submission will be prohibited. For example, the thickness of the warehouse wall should not be less than 150mm, the size of the opening on the warehouse wall should not be greater than 1m, and the width of the narrow cylinder wall between adjacent openings should not be less than 5 times the wall thickness or less than 500mm, etc.

[0105] 2. Internal force calculation and reinforcement area analysis:

[0106] This section uses the calculation of internal forces and reinforcement area of ​​the silo wall as an example for illustration:

[0107] (1) Calculation of lateral pressure coefficient: (φ is the internal friction angle of the stored material)

[0108] (2) Depth / shallow warehouse judgment: h n / d n =1.125<1.5, indicating a shallow warehouse; (h n For the height of the warehouse wall, d n (Inner diameter of the warehouse wall)

[0109] (3) Design value of horizontal pressure of the storage material (ph) (taking a depth of 4 meters as an example):

[0110] p h =1.3*kγs=1.3*0.33*16*4=27.73kPa; (γ is the weight of the stored material, s is the calculation depth)

[0111] (4) Design value of vertical pressure pv of the stored material (taking a depth of 4 meters as an example):

[0112] p v =1.3*γs=1.3*16*4=83.2kPa;

[0113] (5) Design value T of circumferential tensile force on the silo wall (taking a depth of 4 meters as an example):

[0114] T = d n *p h / 2=110.9kN / m;

[0115] (6) Calculate the required steel reinforcement area As1 based on strength:

[0116] A s1 =T / f y =332.77mm 2 / m; (fy is the design value of the tensile strength of the steel reinforcement)

[0117] (7) Calculate the required steel reinforcement area As2 based on the crack:

[0118] p ss =1.1-0.65*f tk *thick / T*1.3=-1.66<0.2, so take 0.2 (thick is the bin wall thickness)

[0119] p = 0.2565 * cover * 10 5 *p ss * T / E s / 1.3*1.025=67.30 (Es is the elastic modulus of the steel reinforcement)

[0120] q = p * thick*dia / 0.02375 / cover = 17002*dia (cover is the thickness of the protective layer, dia is the diameter of the reinforcing bar)

[0121]

[0122] The reinforcement area As2 corresponding to different rebar diameters obtained from the above formula is shown below (the first column is the rebar diameter, and the second column is the corresponding calculated reinforcement area):

[0123]

[0124] 3. Intelligent reinforcement selection and optimization process:

[0125] Based on As1 and As2 at a certain depth in the warehouse wall obtained in the second step, according to the attached... Figure 2 The steps described above can complete the selection of reinforcement for the silo wall ring at this depth. The specific selection result here is: T14@200 (which meets the requirements of calculation and reinforcement selection parameter constraints).

[0126] Calculate the circumferential reinforcement at each depth of the silo wall using the same method. If adjacent depths use the same reinforcement type and the spacing is within the allowable limits, they can be merged. Ensure that the variation in spacing between adjacent circumferential reinforcements does not exceed twice the module to avoid construction jumps. Keep the diameter of the circumferential reinforcement constant within the same silo wall section to reduce processing errors.

[0127] This section only describes the reinforcement selection process in detail using the circumferential reinforcement of the warehouse wall as an example; the reinforcement selection process for other parts will not be elaborated in detail.

[0128] 4. Construction drawing generation and annotation:

[0129] Based on the reinforcement selection optimization results in the third step, a two-dimensional construction drawing (dxf format) containing plan view, section view and node details is automatically generated, and the reinforcement specifications and layout parameters are marked.

[0130] During the construction drawing generation process, the reinforcement anchorage, lap length, and bending angle of the node details are automatically calculated based on the selected reinforcement parameters and comply with the relevant structural requirements of GB 50010-2010 "Code for Design of Concrete Structures".

[0131] Appendix Figure 3 This is a plan view and a schematic diagram of the arrangement of the circumferential reinforcement bars in the silo wall according to the preferred embodiment.

[0132] The rebar cutting list clearly indicates the location of each rebar, and the design number corresponds to the rebar number marked on the drawings. The length, shape, and number are completely consistent with the rebar model in Revit.

[0133] Appendix Figure 4This is part of the silo wall ring reinforcement cutting list in this preferred embodiment.

[0134] 5. BIM Model Generation and Clash Detection:

[0135] The Revit API is used to automatically create a parametric concrete model of the silo, including the foundation, walls, floor, internal columns, openings, and roof, with dimensions and positioning exactly matching the input values.

[0136] The model-generated reinforcement meets relevant specifications, calculation manuals, and design requirements. It incorporates structural requirements for column, beam, wall, and slab reinforcement, as well as requirements for extra-long sections and lap splices. Different components, models, and shapes of reinforcement are assigned unique component numbers, design numbers, and detail numbers. All reinforcement is grouped according to reasonable tolerances and then assigned a reinforcement number.

[0137] Conflict detection: The BIM-based conflict analysis engine uses virtual simulation to detect steel bar collisions and construction conflicts, such as whether the skeleton reinforcement coincides with the vertical reinforcement of the reservoir wall, whether the reinforcement avoids openings, and whether the longitudinal reinforcement of the funnel ring beam collides with the reinforcement of the reservoir wall.

[0138] Figure 5 This is the BIM model of the preferred embodiment.

[0139] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully automated design method for concrete silo structures, characterized in that, include: Step S01: Obtain the parameter set of the concrete silo structure, including model parameters, load parameters, reinforcement selection parameters, structural parameters, and material parameters; Step S02: Construct a static calculation engine based on national standards and specifications, and automatically perform internal force calculation of silo wall, stress analysis of silo bottom plate and mechanical analysis of foundation structure according to the parameter set; complete the calculation of reinforcement area of ​​each part of silo; Step S03: Based on the calculation results of the reinforcement area of ​​each part of the silo, the intelligent reinforcement selection algorithm is used to automatically generate a reinforcement configuration scheme that meets the strength, crack and construction constraints; Step S04: Based on the template-based drawing system, automatically generate DXF format construction drawings and EXCEL format steel reinforcement cutting list according to the silo structure parameter set and steel reinforcement configuration scheme; Step S05: Automatically convert the silo structure model parameters and reinforcement configuration scheme into a BIM model through the Revit secondary development interface, and generate a complete BIM deliverable including parametric models of concrete components and 3D models of reinforcement.

2. The fully automated design method for concrete silo structures according to claim 1, characterized in that: The model parameters include the silo inner diameter, silo height, foundation type, silo bottom plate type, number of silos, and spacing.

3. The fully automated design method for concrete silo structures according to claim 1, characterized in that: The static calculation engine incorporates national standard calculation rules to perform load calculations on the silos, combine internal forces, and complete the overall mechanical analysis of the silos.

4. The fully automated design method for concrete silo structures according to claim 1, characterized in that: The intelligent reinforcement selection algorithm includes: S0301. Obtain the strength reinforcement area AS1 and crack reinforcement area AS2 from the static calculation results; S0302. Based on the reinforcement selection parameters, calculate the comprehensive reinforcement area that satisfies AS = max(AS1,AS2); S0303. Based on the comprehensive reinforcement area and combined with the reinforcement selection parameter constraints, generate a feasible solution set for the diameter and spacing of the ring reinforcement. S030301, Diameter Priority Rule: Prioritize matching the preferred diameter specified by the user; if this cannot be satisfied, traverse the diameters in the reinforcement library in ascending order. S030302, Spacing Constraint Rules: Generate a candidate spacing sequence based on the maximum and minimum spacing limits, and round it to the nearest integer using a user-defined modulus; S030303, Conflict handling mechanism: When the single-layer reinforcement cannot meet AS, the double-layer reinforcement mode is automatically triggered, and the spacing and diameter combination is recalculated. S0304. Based on the economic priority and construction adaptability rules, select the optimal ring reinforcement configuration scheme from the feasible solution set. S030401, The variation in the spacing between adjacent ring reinforcement bars shall not exceed twice the module; S030402. The diameter of the ring reinforcement remains constant within the same silo wall section. S030403, Spacing value for automatically avoiding conflicts with vertical reinforcement nodes.

5. The fully automated design method for concrete silo structures according to claim 1, characterized in that: The templated drawing system includes: S0401, Parametric construction drawing template library; S0402. Based on the reinforcement selection optimization results, automatically generate two-dimensional construction drawings including plan view, section view and node details, and mark the reinforcement specifications and numbers; S0403. During the generation of construction drawings, the reinforcement anchorage, lap length and bending angle of the node details are automatically calculated based on the selected reinforcement parameters and meet the relevant structural requirements. S0404 The steel bar cutting list clearly specifies the location of each steel bar, and the design number corresponds to the steel bar number marked on the drawing. The length, shape and number are completely consistent with the steel bar model in Revit.

6. The fully automated design method for concrete silo structures according to claim 1, characterized in that: The Revit secondary development interface implements the following functions: S0501. Automatically create a parametric concrete model of a silo, including the foundation, walls, bottom slab, internal columns, openings, and top slab. S0502. The steel bars generated based on the model meet the relevant specifications, calculation manuals and design requirements. It has built-in structural requirements for steel bar column reinforcement, beam reinforcement, wall reinforcement and slab reinforcement, as well as requirements for ultra-long splitting and lap splicing anchorage. It assigns unique component number, design number and detail number to steel bars of different parts, different models and different shapes. All steel bars are merged according to tolerance and assigned steel bar number. S0503, The BIM-based conflict analysis engine detects steel bar collisions and construction conflicts through virtual simulation.

7. A fully automated design system for concrete silo structures, characterized in that, include: Parameter input module: Obtains the parameter set of the concrete silo structure, including model parameters, load parameters, reinforcement selection parameters, structural parameters, and material parameters; The calculation engine module is built based on national standards and specifications to construct a static calculation engine. It automatically performs internal force calculations of the silo wall, stress analysis of the silo bottom plate, and mechanical analysis of the foundation structure according to the parameter set; and completes the calculation of the reinforcement area of ​​each part of the silo. Intelligent reinforcement selection module: Based on the calculation results of the reinforcement area of ​​each part of the silo, the intelligent reinforcement selection algorithm automatically generates a reinforcement configuration scheme that meets the strength, crack and construction constraints; Construction drawing generation module: Based on the template-based drawing system, it automatically generates DXF format construction drawings and EXCEL format steel reinforcement cutting lists according to the silo structure parameter set and steel reinforcement configuration scheme; BIM Interface Module: Automatically converts silo structure model parameters and reinforcement configuration schemes into BIM models through the Revit secondary development interface, generating a complete BIM deliverable including parametric models of concrete components and 3D models of reinforcement. The modules are connected via a standardized JSON data interface, and the system’s built-in knowledge base includes an industry standard database, an engineering case library, and an expert experience rule library.

8. The fully automated design system for concrete silo structures according to claim 7, characterized in that: The static calculation engine adopts a modular design, including: Submodule for calculating silo base reaction force and foundation dimensions under various load combinations; Submodule for calculating basic radial force, circumferential force, radial reinforcement area, and circumferential reinforcement area; Submodule for calculating the internal forces and reinforcement area of ​​multi-row warehouse foundations; Submodule for calculating circumferential tensile force of silo walls, required reinforcement area for strength, and required reinforcement area for cracks; Submodule for calculating radial force, circumferential force, radial reinforcement area, and circumferential reinforcement area of ​​the warehouse bottom slab; Sub-module for calculating the punching, shear resistance, and minimum thickness of the warehouse floor slab and foundation; Submodule for calculating torsional, shear, and tensile internal forces and reinforcement area of ​​inverted cone ring beams and funnel ring beams; Submodule for calculating vertical force, axial compression ratio, and reinforcement area of ​​internal columns; Calculation submodule for reinforcement bars at openings.

9. The fully automated design system for concrete silo structures according to claim 7, characterized in that: The intelligent reinforcement selection algorithm includes: S0301. Obtain the strength reinforcement area AS1 and crack reinforcement area AS2 from the static calculation results; S0302. Based on the reinforcement selection parameters, calculate the comprehensive reinforcement area that satisfies AS = max(AS1,AS2); S0303. Based on the comprehensive reinforcement area and combined with the reinforcement selection parameter constraints, generate a feasible solution set for the diameter and spacing of the ring reinforcement. S030301, Diameter Priority Rule: Prioritize matching the preferred diameter specified by the user; if this cannot be satisfied, traverse the diameters in the reinforcement library in ascending order. S030302, Spacing Constraint Rules: Generate a candidate spacing sequence based on the maximum and minimum spacing limits, and round it to the nearest integer using a user-defined modulus; S030303, Conflict handling mechanism: When the single-layer reinforcement cannot meet AS, the double-layer reinforcement mode is automatically triggered, and the spacing and diameter combination is recalculated. S0304. Based on the economic priority and construction adaptability rules, select the optimal ring reinforcement configuration scheme from the feasible solution set. S030401, The variation in the spacing between adjacent ring reinforcement bars shall not exceed twice the module; S030402. The diameter of the ring reinforcement remains constant within the same silo wall section. S030403, Spacing value for automatically avoiding conflicts with vertical reinforcement nodes.

10. The fully automated design system for concrete silo structures according to claim 7, characterized in that: The templated drawing system includes: S0401, Parametric construction drawing template library; S0402. Based on the reinforcement selection optimization results, automatically generate two-dimensional construction drawings including plan view, section view and node details, and mark the reinforcement specifications and numbers; S0403. During the generation of construction drawings, the reinforcement anchorage, lap length and bending angle of the node details are automatically calculated based on the selected reinforcement parameters and meet the relevant structural requirements. S0404 The steel bar cutting list clearly specifies the location of each steel bar, and the design number corresponds to the steel bar number marked on the drawing. The length, shape and number are completely consistent with the steel bar model in Revit.

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