A method and device for checking a support and hanger

Abstract

The application discloses a kind of support hanger checking method and device, the method includes: according to the weight of each element and preset conversion rule, obtain vertical pole load and cross arm load;According to the vertical pole load, the cross arm load, the element information and the position information, generate structure calculation model;According to the calculation model, the extreme value of the bending moment, shear force, axial force and deformation of each force element in the to-be-tested support hanger is calculated under all sections respectively;If under all sections, the stress extreme value calculated by the bending moment, shear force and axial force extreme value of each force element in the to-be-tested support hanger is less than the strength allowable value of element material and the deformation extreme value of element is less than deformation allowable value, the to-be-tested support hanger meets bearing capacity and normal use requirement.Using the application, the structure calculation model under different sections is called to complete multiple calculations of force elements involved in support hanger design process, so that designers can quickly check all sections.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of support hanger management, and in particular to a support hanger checking method and device. BACKGROUND

[0002] At present, the design and calculation of support hangers is that a designer judges a plurality of unfavorable support hanger sections by experience, and then calculates loads and performs structural checking.

[0003] The prior art involves switching of multiple software, including design software, load calculation software, member internal force calculation software and structural checking software, and the data between the software needs to be connected by manual work, which is laborious and prone to errors. In addition, the designer may miss or misselect the most unfavorable support hanger section by judging a plurality of unfavorable support hanger sections by experience, so that the designed support hanger cannot meet the most unfavorable section, and there is a safety hazard. SUMMARY

[0004] The embodiments of the present application provide a support hanger checking method and device, which calls a structural calculation model under different sections to complete multiple calculations of force elements involved in the design process of the support hanger, so that the designer can quickly check all sections.

[0005] To achieve the above object, a first aspect of the embodiments of the present application provides a support hanger checking method, comprising:

[0006] obtaining element information of each element;

[0007] adjusting the geometric parameters of each element, and connecting the components to form a to-be-tested support hanger;

[0008] reading the element information and position information of each element in the to-be-tested support hanger, and calculating the weight of each element;

[0009] obtaining a vertical rod load and a cross arm load according to the weight of each element and a preset conversion rule;

[0010] generating a structural calculation model according to the vertical rod load, the cross arm load, the element information and the position information;

[0011] calculating the extreme values of the bending moment, shear force, axial force and deformation of each force element in the to-be-tested support hanger under all sections according to the calculation model;

[0012] if the stress extreme values calculated by the bending moment, shear force and axial force of each force element in the to-be-tested support hanger under all sections are all less than the strength allowable value of the element material and the deformation extreme values of the element are all less than the deformation allowable value, the to-be-tested support hanger meets the bearing capacity and normal use requirements.

[0013] In a possible implementation manner of the first aspect, the vertical rod load and the cross arm load are obtained according to the weight of each element and a preset conversion rule, and specifically include:

[0014] converting the weight of the circular pipeline into a concentrated load at a contact point between the circular pipeline and the cross arm;

[0015] converting the weight of the rectangular pipeline or the weight of the bridge into a uniform load within a contact surface range between the rectangular pipeline and the cross arm.

[0016] In a possible implementation manner of the first aspect, the structural calculation model includes the size, shape, relative position, material, vertical rod load, cross arm load and constraint of each component.

[0017] In a possible implementation manner of the first aspect, before the element information of each element is obtained, the method further includes:

[0018] setting the name of each element and initializing the element parameter according to a naming rule.

[0019] In a possible implementation manner of the first aspect, the extreme values of the bending moment, shear force, axial force and deformation of each force element in the to-be-tested support and hanger are respectively calculated under all cross sections according to the calculation model, and specifically include:

[0020] the bending moment, shear force, axial force and deformation are calculated multiple times on each element according to a preset interval, and the extreme values corresponding to the bending moment, shear force, axial force and deformation are obtained from the multiple calculation results.

[0021] The second aspect of the embodiment of the application provides a support and hanger checking device, including:

[0022] an acquisition module configured to acquire element information of each element; the element information includes geometric parameters and assembly properties;

[0023] an adjustment module configured to adjust the geometric parameters of each element, and connect the components to form a to-be-tested support and hanger;

[0024] a weight calculation module configured to read the element information and position information of each element in the to-be-tested support and hanger, and calculate the weight of each element;

[0025] a conversion module configured to obtain a vertical rod load and a cross arm load according to the weight of each element and a preset conversion rule;

[0026] a model generation module configured to generate a structural calculation model according to the vertical rod load, the cross arm load, the element information and the position information;

[0027] an extreme value calculation module, configured to calculate extreme values of the bending moment, the shear force, the axial force and the deformation of each force element in the to-be-tested support and hanger under all sections according to the calculation model;

[0028] a judgment module, configured to determine that the to-be-tested support and hanger meets the load-carrying capacity and normal use requirements if the stress extreme values calculated by the bending moment, the shear force and the axial force of each force element in the to-be-tested support and hanger under all sections are all less than the strength allowable value of the element material and the deformation extreme values of the elements are all less than the deformation allowable value.

[0029] In a possible implementation of the second aspect, the conversion module is specifically configured to:

[0030] convert the weight of the circular pipeline into a concentrated load at a contact point between the circular pipeline and the cross arm;

[0031] convert the weight of the rectangular pipeline or the weight of the bridge into a uniform load within a contact surface range between the rectangular pipeline and the cross arm.

[0032] In a possible implementation of the second aspect, the structural calculation model includes the size, shape, relative position, material, vertical rod load and cross arm load and constraint of each component.

[0033] In a possible implementation of the second aspect, the support and hanger checking device further includes:

[0034] a standardization module, configured to set the name of each element and initialize the element parameter according to a naming rule

[0035] In a possible implementation of the second aspect, the extreme value calculation module is specifically configured to:

[0036] calculate the bending moment, the shear force, the axial force and the deformation multiple times on each element at a preset interval, and obtain the extreme values of the bending moment, the shear force, the axial force and the deformation from the multiple calculation results.

[0037] Compared with the prior art, the support and hanger checking method and device provided in the embodiments of the present application perform load calculation, component internal force calculation and load-carrying capacity checking after obtaining the information of each component based on drawings or models, integrate the design of the support and hanger in a structural calculation model, and reduce the information errors and omissions in the data flow process. In the final checking process, the stress conditions of the to-be-tested support and hanger under all sections are considered, which means that the load-carrying capacity of the force component in the most unfavorable stress state is considered, and the occurrence of safety hazards is avoided.

[0038] Since each section forms a calculation model, the support hanger model and load are automatically identified, the internal force is automatically calculated, the checking is automatically calculated, and all support hanger sections can be calculated repeatedly, in other words, the design and checking process of the support hanger is automated, all support hanger sections are checked quickly, the design efficiency and quality of the support hanger are greatly improved, and the safety hidden danger caused by the missing calculation of the section is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a flowchart of a support hanger checking method provided by an embodiment of the present application;

[0040] Figure 2 is a structural schematic diagram of a to-be-tested support hanger provided by an embodiment of the present application. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0042] Please refer to Figure 1 An embodiment of the present application provides a support hanger checking method, which comprises the following steps.

[0043] S10, obtaining element information of each element.

[0044] S11, adjusting the geometric parameters of each element, and connecting each component to form a to-be-tested support hanger.

[0045] S12, reading the element information and position information of each element in the to-be-tested support hanger, and calculating the weight of each element.

[0046] S13, obtaining vertical rod load and cross arm load according to the weight of each element and a preset conversion rule.

[0047] S14, generating a structure calculation model according to the vertical rod load, the cross arm load, the element information and the position information.

[0048] S15, calculating the extreme values of the bending moment, shear force, axial force and deformation of each force element in the to-be-tested support hanger under all sections according to the calculation model.

[0049] S16, if the stress extreme value calculated by the bending moment, shear force and axial force of each force element in the to-be-tested support and hanger is less than the strength allowable value of the element material and the deformation extreme value of the element is less than the deformation allowable value under all sections, the to-be-tested support and hanger meets the bearing capacity and normal use requirements.

[0050] The process of obtaining the element is equivalent to standardizing the element. The element includes a vertical pole, a cross arm, a pipeline, a bridge, a connecting piece, a support, etc. of the support and hanger, and needs to be made according to the characteristics of the actually used software (such as a CAD block, a revit group, and a microstation seed file).

[0051] Then the element is assembled into the support and hanger, as shown in the figure. Figure 2 Suitable elements are selected and assembled into a complete support and hanger. Because the element is parameterized, the complete support and hanger can be assembled by adjusting the element parameters. The to-be-tested support and hanger includes a vertical pole, a cross arm, a connecting piece, and a pipeline or a bridge, and is a statically determinate or statically indeterminate structure without degrees of freedom.

[0052] It should be noted that in the calculation of the weight of each element, the main weight is the self weight, and the formula is generally: weight = volume * weight degree. In particular, taking the pipeline as an example, if there is medium in the pipeline, the weight of the medium should also be added; if the medium is flowing, the equivalent static load is multiplied by the amplification coefficient for calculation.

[0053] Compared with the prior art, the support and hanger checking method provided by the embodiment of the application carries out load calculation, member internal force calculation and bearing capacity checking after obtaining the information of each element based on drawings or models, integrates the design of the support and hanger in a structure calculation model, and reduces the information errors and omissions in the data flow process.

[0054] In the final checking process, the stress of the to-be-tested support and hanger under all sections is considered, which means that the bearing capacity of the stressed member under the most unfavorable stress state is considered, and the occurrence of safety hazards is avoided.

[0055] Since the design and checking process of the support and hanger are automated, all support and hanger sections are quickly checked, the design efficiency and quality of the support and hanger are greatly improved, and safety hazards caused by missed calculation of the sections are avoided.

[0056] Exemplarily, the vertical pole load and the cross arm load are obtained according to the weight of each element and a preset conversion rule, and specifically include:

[0057] The weight of the circular pipeline is converted into a concentrated load at the contact point of the circular pipeline and the cross arm;

[0058] Convert the weight of the rectangular pipeline or the weight of the bridge into a uniform load in the contact area between the rectangular pipeline and the cross arm.

[0059] The structural calculation model includes the size, shape, relative position, material, vertical rod load, cross arm load, and constraint of each component.

[0060] The structural calculation model is the result of modeling the to-be-tested support and hanger in simulation software. In the model building process (S13-S14), the information obtained in S12 and the information obtained in S13 are used as the basis.

[0061] The method further includes, before the obtaining of the component information of each component:

[0062] The names of the components are set according to the naming rules, and the component parameters are initialized.

[0063] Generally, the cross section of the support and hanger is divided into components, and the division standard is to meet the needs of creating support and hangers with different cross sections (mainly the parameterization of related components and the assembly of components) without affecting the creation efficiency. For example, the support and hanger can be divided into vertical rods, cross arms, pipelines, bridges, connecting pieces, and supports.

[0064] Then, the names of the components are set and standardized, for example, the cross arm is named “BIS-72” according to the manufacturer's model, or “cross section size + material”; then, the parameters of the components are set, such as length and cross section type, and the created components can be driven by the parameters.

[0065] The method further includes, according to the calculation model, calculating the extreme values of the bending moment, shear force, axial force, and deformation of each force component in the to-be-tested support and hanger under all cross sections, specifically including:

[0066] The bending moment, shear force, axial force, and deformation are calculated multiple times on each component at a preset interval, and the extreme values of the bending moment, shear force, axial force, and deformation are obtained from the multiple calculation results.

[0067] In this embodiment, the components need to be regarded as force analysis objects, and an internal force is calculated on each component at a certain distance (such as 0.1 m), and then the extreme values are extracted therefrom. The extreme values of the bending moment, shear force, and axial force are used to judge the deflection, shear strength, and tensile strength of the component, and the component passes the check if the values are less than the limit values. The limit values can be obtained from the relevant industry standards.

[0068] A second aspect of the embodiment of the application provides a support and hanger checking device, which includes an obtaining module, an adjusting module, a weight calculation module, a conversion module, a model generation module, an extreme value calculation module, and a judging module.

[0069] The obtaining module is configured to obtain component information of each component.

[0070] an adjusting module, configured to adjust geometric parameters of each element, and connect the components to form the to-be-tested support frame.

[0071] a weight calculating module, configured to read element information and position information of each element in the to-be-tested support frame, and calculate the weight of each element.

[0072] a converting module, configured to obtain a vertical pole load and a cross arm load according to the weight of each element and a preset conversion rule.

[0073] a model generating module, configured to generate a structure calculation model according to the vertical pole load, the cross arm load, the element information and the position information.

[0074] an extreme value calculating module, configured to calculate extreme values of a bending moment, a shear force, an axial force and a deformation of each force-bearing element in the to-be-tested support frame under all sections respectively according to the calculation model.

[0075] a judging module, configured to determine that the to-be-tested support frame meets the load-carrying capacity and normal use requirements if extreme values of stresses calculated by the bending moment, the shear force and the axial force of each force-bearing element in the to-be-tested support frame under all sections are all less than a strength allowable value of an element material and extreme values of deformations of the element are all less than a deformation allowable value.

[0076] Exemplarily, the converting module is specifically configured to:

[0077] convert the weight of a circular pipeline into a concentrated load at a contact point between the circular pipeline and a cross arm;

[0078] convert the weight of a rectangular pipeline or the weight of a bridge frame into a uniformly distributed load in a contact surface range between the rectangular pipeline and the cross arm.

[0079] Exemplarily, the structure calculation model includes sizes, shapes, relative positions, materials, vertical pole loads, cross arm loads and constraints of each component.

[0080] Exemplarily, the support frame checking device further includes:

[0081] a standardizing module, configured to set a name of each element and initialize element parameters according to a naming rule;

[0082] Exemplarily, the extreme value calculating module is specifically configured to:

[0083] calculate the bending moment, the shear force, the axial force and the deformation multiple times on each element according to a preset interval, and obtain extreme values corresponding to the bending moment, the shear force, the axial force and the deformation from multiple calculation results.

[0084] Compared with the prior art, the support and hanger checking device provided by the embodiment of the application obtains each component information based on drawings or models, performs load calculation, member internal force calculation and bearing capacity checking, integrates the design of the support and hanger in a structure calculation model, and reduces information omission in the data flow process.

[0085] In the final checking process, the stress conditions of the support and hanger to be measured under all sections are considered, which means that the bearing capacity of the stressed member under the most unfavorable stress state is considered, and the occurrence of safety hazards is avoided.

[0086] Since the design and checking process of the support and hanger are automated, all support and hanger sections are quickly checked, the design efficiency and quality of the support and hanger are greatly improved, and safety hazards caused by omission of the sections are avoided.

[0087] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the device described above can refer to the corresponding process in the foregoing method embodiments, which will not be described herein.

[0088] The above is the preferred embodiment of the application. It should be noted that, for those skilled in the art, without departing from the principles of the application, several improvements and refinements can be made, which are also considered within the protection scope of the application.

Claims

1. A method for verifying supports and hangers, characterized in that, include: Obtain component information for each component; Adjust the geometric parameters of each component and connect the components to form the support and hanger to be tested; Read the component information and position information of each component in the support and hanger to be tested, and calculate the weight of each component; Based on the weight of each component and the preset conversion rules, the vertical load and the horizontal load are obtained; A structural calculation model is generated based on the vertical rod load, the crossarm load, the component information, and the position information. According to the calculation model, the bending moment, shear force, axial force and deformation of each force-bearing element in the support under test are calculated multiple times at preset intervals under all cross sections, and the extreme values ​​corresponding to the bending moment, shear force, axial force and deformation are obtained from the multiple calculation results; If, under all cross-sections, the extreme values ​​of stress calculated from the bending moment, shear force, and axial force of each force-bearing element in the support under test are all less than the allowable strength value of the element material and the extreme values ​​of deformation of the element are all less than the allowable deformation value, then the support under test meets the requirements for load-bearing capacity and normal use.

2. The support and hanger verification method as described in claim 1, characterized in that, The process of obtaining the vertical pole load and the horizontal arm load based on the weight of each component and a preset conversion rule specifically includes: The weight of the circular pipeline is converted into a concentrated load at the contact point between the circular pipeline and the crossarm. The weight of the rectangular pipeline or the cable tray is converted into a uniformly distributed load within the contact area between the rectangular pipeline and the crossarm.

3. The support and hanger verification method as described in claim 1, characterized in that, The structural calculation model includes the dimensions, shape, relative position, material, vertical load, horizontal load, and constraints of each component.

4. The support and hanger verification method as described in claim 1, characterized in that, Before obtaining the component information of each component, the process includes: Set the name of each component and initialize the component parameters according to the naming rules.

5. A support and hanger calculation device, characterized in that, include: The acquisition module is used to acquire component information for each component; The adjustment module is used to adjust the geometric parameters of each component and connect the components to form the support and hanger to be tested; The weight calculation module is used to read the component information and position information of each component in the support bracket to be tested, and to calculate the weight of each component. The conversion module is used to obtain the vertical load and the horizontal load based on the weight of each component and the preset conversion rules. The model generation module is used to generate a structural calculation model based on the vertical rod load, the crossarm load, the component information, and the position information; The extreme value calculation module is used to calculate the bending moment, shear force, axial force and deformation of each force-bearing element in the support under test multiple times at preset intervals under all cross sections according to the calculation model, and obtain the extreme values ​​corresponding to the bending moment, shear force, axial force and deformation from the multiple calculation results; The judgment module is used to determine if, under all cross-sections, the extreme values ​​of stress calculated from the bending moment, shear force, and axial force of each force-bearing element in the support under test are all less than the allowable strength value of the element material and the extreme values ​​of deformation of the element are all less than the allowable deformation value, then the support under test meets the requirements for load-bearing capacity and normal use.

6. The support and hanger verification device as described in claim 5, characterized in that, The conversion module is specifically used for: The weight of the circular pipeline is converted into a concentrated load at the contact point between the circular pipeline and the crossarm. The weight of the rectangular pipeline or the cable tray is converted into a uniformly distributed load within the contact area between the rectangular pipeline and the crossarm.

7. The support and hanger verification device as described in claim 5, characterized in that, The structural calculation model includes the dimensions, shape, relative position, material, vertical load, horizontal load, and constraints of each component.

8. The support and hanger verification device as described in claim 5, characterized in that, Also includes: The standardization module is used to set the names of each component and initialize the component parameters according to the naming rules.

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