Rapid design method for steel trestle and steel platform system

Abstract

The application relates to a bridge engineering construction method, in particular to a rapid design method of a steel trestle and steel platform system. The method comprises the following steps: establishing steel trestle and steel platform plane assembly objects, steel trestle and steel platform design management objects, longitudinal arrangement object groups and transverse arrangement object groups on a graphic page; adjusting the spacing of steel pipe columns and the distance between the steel pipe columns and main bearing beams in the longitudinal arrangement object groups and the transverse arrangement object groups to obtain a support design scheme of the steel trestle and the steel platform; establishing a first object group CAR, a second object group LJ and a third object group BEAM relative to a reference axis; establishing a two-dimensional / three-dimensional mechanical calculation model or command stream data of the steel trestle and the steel platform and performing mechanical analysis and calculation on the steel trestle and the steel platform to obtain a steel trestle and steel platform design scheme meeting field and design requirements; and establishing design detailed drawings of the steel trestle and the steel platform according to the plane position relationship of all the steel trestle and steel platform plane assembly objects.

Description

TECHNICAL FIELD

[0001] The present application relates to a bridge engineering construction method, in particular to a rapid design method of a steel trestle and steel platform system. BACKGROUND

[0002] In the process of bridge construction, the steel trestle and steel platform system is an important temporary structure and facility for bridge construction, and has great construction difficulty and high construction cost. The steel trestle in the steel trestle and steel platform system includes a main trestle and a branch trestle, and the main trestle is arranged along the bridge line direction, and the branch trestle is arranged vertically to the plane along the bridge line direction. The steel platform is a support system for pile foundation drilling and pouring construction. The design of the steel trestle and steel platform system needs to be arranged according to the bridge pier, the on-site hydrological and geological conditions, the main beam construction scheme and other on-site conditions, and the structure calculation and engineering calculation are carried out according to the construction technical specification, and the construction detail drawing is drawn.

[0003] In the multiple patents applied by the present applicant about the rapid design method of the temporary structure for bridge construction, a series of functional graphic objects are involved, including a rod object, a Bailey beam object, a steel pipe column object, a steel pipe connection object, a steel pipe column connection plane object, a water level object, a soil layer object and a pile cap pile object and the like. The graphic attribute information and professional functions of these functional graphic objects can be used for reference in the design of the steel trestle and steel platform system, but there are still many limitations and deficiencies in expressing the design characteristics of the steel trestle and steel platform system, which will lead to problems in the design efficiency, the design calculation, the coordination and the ease of use of the design of the steel trestle and steel platform system, so that the design of the steel trestle and steel platform system cannot be repeatedly optimized, and the digital application level of the steel trestle and steel platform system is not improved. SUMMARY

[0004] The purpose of the present application is to provide a rapid design method of a steel trestle and steel platform system, so as to solve the problem that there is still a lack of integrated solution of the steel trestle and steel platform system including structure design, calculation, calculation and drawing in the bridge construction digital technology, so as to promote the improvement of the digital application level of the design and construction of the steel trestle and steel platform system.

[0005] The purpose of the present application is achieved as follows:

[0006] A rapid design method of a steel trestle and steel platform system, comprising the following steps:

[0007] S1, draw several area contours of the plane layout of the steel trestle and steel platform to be designed on a graphic page, and convert each area contour into a steel trestle and steel platform plane assembly object, set an object name and a steel trestle and steel platform type attribute on the steel trestle and steel platform plane assembly object.

[0008] S2, select a steel trestle and steel platform plane assembly object, and establish a steel trestle and steel platform design management object and a longitudinal arrangement object group and a transverse arrangement object group of the steel trestle and steel platform on a graphic page.

[0009] S3, set the specifications and parameters of each component object in the longitudinal arrangement object group and the transverse arrangement object group on the operation interface of the steel trestle and steel platform design management object, and adjust the spacing of the steel pipe columns and the distance from the steel pipe columns to one end of the main load-bearing beam in the longitudinal arrangement object group and the transverse arrangement object group to obtain a support design scheme of the steel trestle and steel platform that meets the design requirements.

[0010] S4, according to the longitudinal arrangement object group and the transverse arrangement object group of the steel trestle and steel platform, first establish a first object group CAR relative to a first reference axis ZX1 to represent the planar position of the automobile load or tracked vehicle load on the steel trestle or steel platform, then establish a second object group LJ relative to a second reference axis ZX2 to represent the connection and arrangement between the steel pipe columns and the steel pipes, and finally establish a third object group BEAM relative to a third reference axis ZX3 to represent the arrangement of the small cross beams, large cross beams and Bailey beams relative to the third reference axis ZX3.

[0011] S5, when the first object group CAR, the second object group LJ or the third object group BEAM do not meet the design requirements, the first object group CAR, the second object group LJ and the third object group BEAM that meet the requirements are obtained through editing or modifying the attributes.

[0012] S6, according to the longitudinal arrangement object group and the transverse arrangement object group of the steel trestle and steel platform, and the first object group CAR, the second object group LJ and the third object group BEAM, a two-dimensional / three-dimensional mechanical calculation model or command stream data of the steel trestle and steel platform is established on the operation interface of the steel trestle and steel platform design management object, and the two-dimensional / three-dimensional mechanical calculation model or command stream data is used for mechanical analysis and calculation of the steel trestle and steel platform to obtain a steel trestle and steel platform design scheme that meets the site constraint conditions and design requirements.

[0013] S7, if the mechanical analysis and calculation result does not meet the specification requirements, the longitudinal arrangement object group, the transverse arrangement object group and / or the vehicle load arrangement are adjusted, and then steps S3-S6 are repeated until the calculation result meets the requirements.

[0014] S8, repeat steps S2-S7, traverse all the steel trestle and steel platform assembly objects in the graphic page, and obtain the longitudinal arrangement object group, the transverse arrangement object group, the first object group CAR, the second object group LJ and the third object group BEAM corresponding to all the steel trestle and steel platform assembly objects and the corresponding mechanical analysis and calculation results.

[0015] S9, according to the planar position relationship of all the steel trestle and steel platform assembly objects, establish the design detail drawing of the steel trestle and steel platform on the graphic page.

[0016] Further, the longitudinal arrangement object group of the steel trestle and steel platform includes the small beam cross section object, the large beam cross section object, the bailey beam elevation object, the steel pipe column object and the longitudinal connection object between the steel pipe columns.

[0017] Further, the transverse arrangement object group of the steel trestle and steel platform includes the small beam elevation object, the large beam elevation object, the bailey beam cross section object, the railing vertical rod object, the steel pipe elevation object, the longitudinal connection object between the steel pipe columns and the transverse connection object between the steel pipe columns.

[0018] Further, in step S6, if there are several calculation conditions, a new first reference axis ZX1 is established by graphic copying, a new first object group CAR is established, and the vehicle load condition borne by the steel trestle and steel platform is formed by the new first reference axis ZX1 and the new first object group CAR; the required vehicle load condition is obtained by editing or modifying the attribute; the two-dimensional / three-dimensional mechanical calculation model or command stream data of the steel trestle and steel platform under different vehicle load conditions is established on the operation interface of the steel trestle and steel platform design management object; and the mechanical analysis and calculation of the steel trestle and steel platform is carried out by using the two-dimensional / three-dimensional mechanical calculation model or command stream data of the steel trestle and steel platform.

[0019] Further, the design detail drawing of the steel trestle and steel platform includes:

[0020] The steel pipe column cross section and the large beam planar object group XT1 associated with each steel trestle and steel platform assembly object, used to represent the planar arrangement of all the steel pipe column cross sections and the large beams on the steel trestle and steel platform;

[0021] The large beam, small beam and bailey beam planar object group XT2, used to represent the planar arrangement of the large beam, small beam and bailey beam on the steel trestle and steel platform;

[0022] The object group XT3 formed by the main trestle transverse arrangement object group and the branch trestle longitudinal arrangement object group, used to represent the mutual position and connection relationship between the main trestle cross section and the branch trestle longitudinal section;

[0023] The object group XT4 composed of the object group of the lateral arrangement of the object group of the trestle bridge and the object group of the lateral arrangement of the object group of the steel platform is used to express the relative position relationship between the trestle bridge cross section and the steel platform cross section.

[0024] The object group XT5 of the steel pipe column section in the main trestle, the trestle bridge and the steel platform and the connecting piece plane object group between the steel pipe columns is used to express the plane connection relationship of all the steel pipe column sections in the steel trestle and the steel platform.

[0025] The engineering quantity table of the steel trestle and the steel platform.

[0026] The application can deeply reflect the design characteristics of the steel trestle and the steel platform, and on the basis of inheriting the basic functions of the functional graphic objects in the similar application, the integrated rapid design scheme including design, calculation, calculation and drawing which can support the temporary structure of the bridge construction is provided for the design characteristics of the steel trestle and the steel platform system, so as to realize the simplification, standardization and high efficiency of the steel trestle and the steel platform system design. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a contour area schematic diagram for the design of the steel trestle and the steel platform.

[0028] Figure 2 It is a schematic diagram of the plane assembly object arrangement of the steel trestle and the steel platform.

[0029] Figure 3 It is a schematic diagram of the design management object and the longitudinal arrangement object group and the lateral arrangement object group of the steel trestle and the steel platform.

[0030] Figure 4 It is a schematic diagram of the longitudinal arrangement object group ZM and its components.

[0031] Figure 5 It is a schematic diagram of the lateral arrangement object group HM and its components.

[0032] Figure 6 It is a schematic diagram of the first object group CAR, the second object group LJ and the third object group BEAM.

[0033] Figure 7 It is a schematic diagram of the modified third object group BEAM.

[0034] Figure 8 It is a schematic diagram of the modified second object group LJ.

[0035] Figure 9 It is a schematic diagram of the modified first object group CAR.

[0036] Figure 10 It is a schematic diagram of a plurality of vehicle load conditions.

[0037] Figure 11 is a schematic diagram of the steel pipe column section and the large beam plane object group XT1.

[0038] Figure 12 is a schematic diagram of the large beam, small beam and Bailey beam plane object group XT2.

[0039] Figure 13 is a schematic diagram of the object group XT3 about the main trestle and branch trestle connection relationship.

[0040] Figure 14 is a schematic diagram of the object group XT4 about the branch trestle and steel platform connection relationship.

[0041] Figure 15 is a schematic diagram of the steel pipe column section and the connecting piece between the steel pipe columns plane object group XT5.

[0042] Figure 16 is a schematic diagram of the object group XT6 about the main trestle and steel platform connection relationship.

[0043] Figure 17 is a schematic diagram of the automobile load object; wherein (a) is the automobile load elevation object; (b) is the automobile load cross-section object; (c) is the automobile load plane object.

[0044] Figure 18 is a schematic diagram of the tracked vehicle load object; wherein (a) is the tracked vehicle load elevation object; (b) is the tracked vehicle load cross-section object; (c) is the tracked vehicle load plane object.

[0045] Figure 19 is a schematic diagram of the base point and reference axis of the plane assembly object; wherein (a) is the main trestle plane assembly object; (b) is the branch trestle plane assembly object; (c) is the polygonal main trestle plane assembly object. DETAILED DESCRIPTION

[0046] The present application will be further described in conjunction with the accompanying drawings.

[0047] Firstly, the implementation of the present application needs to be realized by creating and operating the functional graphic objects. Secondly, the present application is realized by the frame selection method of the functional graphic objects. The selection of the functional graphic objects can be realized by the frame selection method in addition to the selection mode similar to the block object in AutoCAD. The specific mode is to first draw a rectangular object, to enclose some related functional graphic objects with the four sides of the rectangle, to select one of the functional graphic objects, and to select the functional graphic objects meeting the given screening condition in the operation interface. When there is no rectangular frame, the frame selection method is to select the functional graphic objects meeting the given screening condition from all the functional graphic objects in the graphic page.

[0048] The attribute editing mode of the functional graphic object is: for the established functional graphic object, the attribute information of the functional graphic object can be set through the operation interface thereof to obtain the required functional graphic object and display state, and the functional graphic object can be modified through the attribute editing mode.

[0049] The steel trestle and the steel platform in the application mainly consist of main load-bearing beams, bridge deck plates, small cross beams, large cross beams, steel pipe columns, longitudinal and transverse connections and other components. The main load-bearing beams can be I-beams, H-shaped steel bars and other steel bar components, or can be bailey beam components. The large cross beams, small cross beams, longitudinal and transverse connections, connecting components, steel pipe objects and other components are generally made of steel components, and the corresponding functional graphic objects of the application are used to express the same, and the attributes and functional features thereof can be referred to the same application patent of the applicant.

[0050] The newly added functional graphic objects of the application include vehicle load objects, steel trestle and steel platform design management objects, steel trestle and steel platform plane assembly objects, reference axis objects, bailey beam locking foot objects and the like. Among them, the vehicle load includes two types of automobile load objects and tracked vehicle load objects.

[0051] The basic features of the automobile load object involved in the application are:

[0052] (1) The automobile load object is a two-dimensional functional graphic object expressed by a graphic symbol, and is used to express the automobile load borne by the steel trestle and the steel platform. The automobile load object has automobile load name, automobile axle force, longitudinal and transverse spacing of the axle, display state information and the like, and the required automobile load object can be obtained by modifying the information on the operation interface thereof.

[0053] (2) The automobile load object can have three display states of an elevation, a plane and a cross section of the automobile load, and each display state is independent. Deleting one display state of the automobile load object will not affect other display states of the automobile load. Figure 17 In the application, Figure 17 (a) the displayed is the automobile load elevation object, Figure 17 (b) the displayed is the automobile load cross section object, Figure 17 (c) the displayed is the automobile load plane object.

[0054] (3) The automobile load plane object can be arranged at any position in the contour area range corresponding to the first reference axis ZX1.

[0055] The basic features of the tracked vehicle load object involved in the application are:

[0056] (1) The tracked vehicle load object is a two-dimensional functional graphic object expressed by graphic symbols, and is used to express the tracked vehicle load borne by the steel trestle and steel platform. The tracked vehicle load object has the information of tracked vehicle load name, distributed load borne by the tracked vehicle track, length and width of the track, center distance between the two tracks, and display state. The above information can be modified on the operation interface to obtain the required tracked vehicle load object. When the tracked vehicle does not hoist heavy objects, the load borne by the tracked vehicle is uniform load; when hoisting heavy objects, the load borne by the tracked vehicle is non-uniform load.

[0057] (2) The display state information of the tracked vehicle load object includes three display states of the tracked vehicle load elevation, plane and cross section. Each display state is independent, and deleting one display state of the tracked vehicle load object will not affect other display states of the tracked vehicle load. Figure 18 Figure 18 (a) the displayed is the tracked vehicle load elevation object, Figure 18 (b) the displayed is the tracked vehicle load cross section object, Figure 18 (c) the displayed is the tracked vehicle load plane object.

[0058] (3) The tracked vehicle load plane object can be arranged at any position in the contour area range corresponding to the first reference axis ZX1.

[0059] The basic features of the steel trestle and steel platform plane assembly object involved in the present application are:

[0060] (1) The steel trestle and steel platform plane assembly object is a functional graphic object for expressing the plane area range of the main trestle, branch trestle or steel platform, and has the object name and the region type of the main trestle, branch trestle or steel platform in the region range. When the plane assembly object names are the same, it indicates that the structures of the main trestle, branch trestle or steel platform in the plane assembly range are the same.

[0061] (2) The plane assembly object has an implicit base point and reference axis corresponding to the center line of the main trestle or steel platform, and the base point is the left midpoint or top midpoint of the plane assembly object. As shown in Figure 19 , when the region type of the plane assembly object is the main trestle, the base point is the left midpoint of the plane assembly object, see Figure 19 (a) or Figure 19 (c); when the region type of the plane assembly object is the branch trestle or steel platform, the base point is the top midpoint of the plane assembly object, see Figure 19 (b).

[0062] (3) Multiple plane assembly objects expressing the region range of the main trestle, branch trestle and steel platform can be established in one graphic page.

[0063] ​(4) The creation mode of the planar assembly object is: first, draw a rectangular object or a polygonal geometric object to express the planar area of the main stack bridge, branch stack bridge or steel platform, then select the area object to forcibly convert it into a planar assembly object, and then set the object name and the type of the steel stack bridge or steel platform on the preset operation interface, mainly including three types of main stack bridge, branch stack bridge and steel platform.

[0064] (5) On the preset operation interface, according to the contour area of the planar assembly object and the associated design management object, the main load-bearing beam plane, large beam plane and small beam plane within the scope of all design management objects can be automatically established in the graphic page, for expressing the planar positional relationship of the main load-bearing beam, large beam and small beam between the main stack bridge, branch stack bridge and steel platform.

[0065] (6) In the graphic page, the planar layout diagram containing all steel pipe column sections and the planar connection therebetween within the scope of all design management objects can be automatically assembled according to the planar positional relationship of each planar assembly object, to express the planar positional relationship of the steel pipe column and the connection therebetween.

[0066] (7) In the graphic page, the planar layout diagram containing the establishment of the steel pipe column section and the large beam plane within the scope of all design management objects can be automatically assembled according to the planar positional relationship of each planar assembly object, to express the planar layout position of the large beam and steel pipe column in the main stack bridge, branch stack bridge and steel platform scheme.

[0067] (8) In the graphic page, the layout diagram containing the main stack bridge cross section and the branch stack bridge longitudinal section within the scope of all design management objects can be automatically assembled according to the planar positional relationship of each planar assembly object, to express the relative positional relationship between the main stack bridge cross section and the branch stack bridge longitudinal section.

[0068] (9) In the graphic page, the layout diagram containing the branch stack bridge cross section and the steel platform cross section within the scope of all design management objects can be automatically assembled according to the planar positional relationship of each planar assembly object, to express the relative positional relationship between the branch stack bridge cross section and the steel platform cross section.

[0069] (10) In the graphic page, the layout diagram containing the main stack bridge cross section and the steel platform longitudinal section within the scope of all design management objects can be automatically assembled according to the planar positional relationship of each planar assembly object, to express the relative positional relationship between the main stack bridge cross section and the steel platform longitudinal section.

[0070] (11) In the graphic page, the engineering quantity table of the full-bridge deck, steel pipe column, main load-bearing beam, large beam and small beam, longitudinal connection and transverse connection, etc. can be automatically generated.

[0071] The basic features of the steel trestle and steel platform design management object involved in the present application are:

[0072] (1) The steel trestle and steel platform design management object is a functional graphic object represented by a rectangular frame symbol, used for the design and management of the steel trestle / steel platform, with object name and area type information of the steel trestle and steel platform. The area type can be main trestle, branch trestle or steel platform. The name and area type information of the steel trestle and steel platform design management object established by the operation interface of the planar assembly object are the same as the name and area type of the planar assembly object.

[0073] (2) The steel trestle and steel platform design management object has the material, specification and size information of various component members of the steel trestle and steel platform, such as panel specification and size, railings, handrails, small beams, large beams and bailey beams, steel pipe columns, longitudinal and transverse connections, bailey beam transverse connecting rods, soil layers, water level lines, bailey beam locking feet, and component parameter and arrangement information of the steel trestle and steel platform, such as longitudinal arrangement spacing and transverse arrangement spacing of the steel pipe columns.

[0074] (3) According to the component parameter and arrangement information of the steel trestle and steel platform design management object, the scheme design of the steel trestle and steel platform is carried out, mainly including establishing the corresponding longitudinal arrangement object group and transverse arrangement object group of the steel trestle and steel platform, establishing three horizontal reference axes, including the first reference axis ZX1, the second reference axis ZX2 and the third reference axis ZX3. The first reference axis ZX1 is a reference axis for expressing the planar arrangement of automobile load or tracked vehicle load; the second reference axis ZX2 is a reference axis for expressing the connection and arrangement of the steel pipe column section and the steel pipes; the third reference axis ZX3 is a reference axis for expressing the planar arrangement of the small beams, large beams and bailey beams. Through the operation interface of the steel trestle and steel platform design management object, the above-mentioned parameters and arrangement information can be modified.

[0075] (4) According to the planar arrangement positions of the large beams, small beams and main bearing beams in the steel trestle and steel platform and the lengths of the large beams and small beams, the transverse arrangement object group of the steel trestle and steel platform can be automatically established or modified. When there are multiple different beam lengths in the planar arrangement object group of the large beams, small beams and main bearing beams in the steel trestle and steel platform, multiple transverse arrangement object groups of the steel trestle and steel platform can be automatically generated.

[0076] (5) By arranging the first reference axis ZX1, the second reference axis ZX2 and the third reference axis ZX3 in the steel trestle and steel platform design management object range respectively, and arranging the automobile load plane object or the tracked vehicle load plane object according to the first reference axis ZX1, arranging the steel pipe column section object and the steel pipe column interconnecting member plane object according to the second reference axis ZX2, and arranging the small beam plane object, the large beam plane object and the Bailey beam plane object according to the third reference axis ZX3, a two-dimensional / three-dimensional mechanical calculation model or command stream data of the steel trestle and steel platform can be established.

[0077] (6) The steel trestle and steel platform design management object can be automatically created by the steel trestle and steel platform plane assembly object.

[0078] The rapid design method of the steel trestle and steel platform system of the present application comprises the following steps:

[0079] S1, according to the site topographic and geological conditions, the bridge construction scheme and engineering experience, a plurality of region contours of the plane layout of the steel trestle and steel platform to be designed are drawn on a graphic page. Figure 1 In the drawn region contours, the region contour a is the region contour of the steel trestle or the steel platform. These region contours can be rectangular or polygonal. For the steel platform region range with pile foundation construction, the pile foundation plane object b needs to be established in the region range. Each established region contour is selected in turn and is forcibly converted into a steel trestle and steel platform plane assembly object (each region contour is a plane assembly object). In Figure 2 In the steel trestle and steel platform plane assembly object shown in the drawing, a1 is the main trestle plane assembly object, b1 is the branch trestle plane assembly object, and c1 is the steel platform plane assembly object. The object name and the steel trestle and steel platform type attribute are set on the operation interface of the steel trestle and steel platform plane assembly object.

[0080] S2, a steel trestle and steel platform plane assembly object is selected, and a button operation is performed to establish the steel trestle and steel platform design management object on the graphic page as shown in Figure 3The steel trestle and platform design management object Z1 and the corresponding initialized longitudinal arrangement object group ZM and the transverse arrangement object group HM of the steel trestle and platform are shown. In the steel trestle and platform design management object Z1 on the graphic page, three reference axes, including the first reference axis ZX1, the second reference axis ZX2 and the third reference axis ZX3, are also established by the button operation. The first reference axis ZX1 is a reference axis for expressing the planar arrangement of the automobile load, the caterpillar truck load, the automobile crane load or the caterpillar crane load; the second reference axis ZX2 is a reference axis for expressing the connection and arrangement between the steel pipe columns; and the third reference axis ZX3 is a reference axis for expressing the planar arrangement of the small cross beam, the large cross beam and the Bailey beam. The three reference axes are the reference axes corresponding to the planar assembly object, and are used to express the center line of the steel trestle and platform. In the steel trestle and platform design management object Z1 on the graphic page, the vehicle load elevation object CH1, the vehicle load transverse object CH2, the water level elevation mark object WT, the soil layer object SL describing the position of the steel trestle and platform, the contour object LK arranged on the first reference axis ZX1, the second reference axis ZX2 and the third reference axis ZX3 and the like are also established.

[0081] As shown in Figure 4 The longitudinal arrangement object group ZM of the steel trestle and platform includes the railing horizontal rod object LG, the railing vertical rod object ZM1, the bridge deck slab elevation object ZM2, the small cross beam section object ZM3, the Bailey beam elevation object ZM4, the large cross beam section object ZM5, the steel pipe column object ZM6 and the longitudinal connection object between the steel pipe columns (not shown) and the like.

[0082] As shown in Figure 5 The transverse arrangement object group HM of the steel trestle and platform includes the small cross beam elevation object HM3, the large cross beam elevation object HM5, the Bailey beam section object HM4, the railing vertical rod object HM1, the bridge deck slab section object HM2, the steel pipe column elevation object HM6, the longitudinal connection object between the steel pipe columns (not shown), the transverse connection object HM7 between the steel pipe columns, the Bailey beam locking foot object HM8 and the Bailey beam transverse connection rod object HM9 and the like.

[0083] S3, the materials and specifications of the component objects in the longitudinal arrangement object group ZM and the transverse arrangement object group HM are set respectively in the operation interface of the steel trestle and platform design management object, and various parameters including the length, the wind load, the longitudinal and transverse spacing of the steel pipe columns, the eccentricity of the vehicle load in the transverse direction and the like are set; or the spacing of the steel pipe columns and the distance from the steel pipe columns to one end of the main load-bearing beam in the longitudinal arrangement object group ZM and the transverse arrangement object group HM of the steel trestle and platform are adjusted by using the geometric operations such as copying, moving and deleting, so as to obtain the support design scheme of the steel trestle and platform meeting the design requirements.

[0084] S4. Based on the longitudinal arrangement of the steel trestle and steel platform, the object group ZM and the transverse arrangement of the object group HM are as follows: Figure 6 As shown, firstly, a first object group CAR is created relative to the first reference axis ZX1, including vehicle load planar objects or tracked vehicle load planar objects, to represent the planar position of vehicle loads or tracked vehicle loads on the steel trestle or steel platform. Next, a second object group LJ is created relative to the second reference axis ZX2, including steel pipe column section objects and planar objects of connectors between steel pipe columns, to represent the steel pipe column sections and the connections and arrangements between steel pipes. Finally, a third object group BEAM is created relative to the third reference axis ZX3, including small crossbeam planar objects, large crossbeam planar objects, and Bailey beam planar objects, to represent the arrangement of the small crossbeams, large crossbeams, and Bailey beams relative to the third reference axis ZX3.

[0085] S5. When the first object group CAR, the second object group LJ, or the third object group BEAM does not meet the design requirements, you can use editing methods such as copying, moving, and deleting, or modify the object attributes to obtain the first object group CAR, the second object group LJ, and the third object group BEAM that meet the site requirements. Figure 7 This is an example of a modified third object group BEAM; Figure 8 This is an example of the modified second object group LJ; Figure 9 This is an example of the first object group CAR obtained through modification.

[0086] S6. Based on the longitudinal layout object group ZM and the transverse layout object group HM of the steel trestle and steel platform, as well as the first object group CAR, the second object group LJ, and the third object group BEAM, a two-dimensional / three-dimensional mechanical calculation model of the steel trestle and steel platform can be established through button operations on the operation interface of the steel trestle and steel platform design management object. Alternatively, command flow data can be established, which is compatible with international commercial software such as Midas / Ansys / Abaqus. By using the two-dimensional / three-dimensional mechanical calculation model or command flow data to perform mechanical analysis calculations on the steel trestle and steel platform, a design scheme for the steel trestle and steel platform that meets the site constraints and design requirements can be obtained.

[0087] If multiple calculation conditions need to be calculated, a new first reference axis ZX1 can be created by graphical copying, and a new first object group CAR can be created accordingly. See Figure 10The vehicle load working condition borne by the steel trestle and the steel platform is constituted by the new reference axis ZX1 and the new first object group CAR. The required vehicle load working condition is obtained by editing means such as moving, copying, deleting, or by attribute modification. Then, the two-dimensional / three-dimensional mechanical calculation model of the steel trestle and the steel platform under different vehicle load working conditions is established by button operation on the operation interface of the design management object of the steel trestle and the steel platform; or the command stream data compatible with international commercial software such as Midas / Ansys / Abaqus can be established. The mechanical analysis and calculation of the steel trestle and the steel platform is carried out by using the two-dimensional / three-dimensional mechanical calculation model or the command stream data of the steel trestle and the steel platform.

[0088] S7, if the mechanical analysis and calculation result does not meet the specification requirement, the longitudinal arrangement object group ZM, the horizontal arrangement object group HM and / or the vehicle load arrangement are adjusted, and then the steps S3-S6 are repeated until the calculation result meets the requirement.

[0089] S8, the steps S2-S7 are repeated, after all the other plane assembly objects in the graphic page are processed, the longitudinal arrangement object group and the horizontal arrangement object group corresponding to all the plane assembly objects of the steel trestle and the steel platform, the first object group CAR, the second object group LJ, the third object group BEAM and the corresponding mechanical analysis and calculation result are obtained.

[0090] S9, according to the plane position relationship and the assembly relationship of all the plane assembly objects of the steel trestle and the steel platform, the design detail drawing of the steel trestle and the steel platform is established on the graphic page by operating the button, which specifically includes the following contents:

[0091] (1) the steel pipe column section and the large beam plane object group XT1 associated with each plane assembly object of the steel trestle and the steel platform, see Figure 11 , which is used to represent the plane arrangement of all the steel pipe column sections and the large beams on the steel trestle and the steel platform.

[0092] (2) the large beam, the small beam and the Bailey beam plane object group XT2, see Figure 12 , which is used to represent the plane arrangement of the large beam, the small beam and the Bailey beam on the steel trestle and the steel platform.

[0093] (3) the object group XT3 constituted by the main trestle horizontal arrangement object group and the branch trestle longitudinal arrangement object group, see Figure 13 , which is used to represent the relative position and connection relationship between the main trestle cross section and the branch trestle longitudinal section.

[0094] (4) the object group XT4 constituted by the branch trestle horizontal arrangement object group and the steel platform horizontal arrangement object group, see Figure 14 , which is used to represent the relative position relationship between the branch trestle cross section and the steel platform cross section.

[0095] (5) The object group XT5 of the plane connection between the cross section of the steel pipe column and the connecting member of the steel pipe column in the main trestle, the branch trestle and the steel platform, see Fig. 3. Figure 15 , which is used to express the plane connection between the cross section of all the steel pipe columns in the steel trestle and the steel platform and the mutual connection.

[0096] (6) The object group XT6 of the mutual position and connection between the cross section of the main trestle and the longitudinal section of the steel platform, see Fig. 4. Figure 16 , which is used to express the mutual position and connection between the cross section of the main trestle and the longitudinal section of the steel platform.

[0097] (7) The steel trestle includes the engineering quantity table of all the main trestle and the branch trestle and the engineering quantity table of the steel platform.

[0098] If there are some local details not described in the above object groups XT1-XT6, the conventional drawing method can be used to supplement to complete the required design drawing of the steel trestle and the steel platform expressed by two-dimensional graphics. In addition, the bailey beam in the steel trestle and the steel platform can also be replaced by the profile steel; accordingly, the bailey beam elevation object, the bailey beam plane object and the bailey beam cross section object need to be replaced by the profile steel elevation object, the profile steel plane object and the profile steel cross section object. In addition, the longitudinal connection and the transverse connection of the profile steel can also be replaced by the steel pipe.

Claims

1. A rapid design method of a steel trestle and steel platform system, characterized in that, The method comprises the following steps: S1, drawing several region contours of the planar layout of the steel trestle and steel platform to be designed on a graphic page, forcibly converting each region contour into a steel trestle and steel platform planar assembly object, and setting an object name and a steel trestle and steel platform type attribute on the steel trestle and steel platform planar assembly object; S2, selecting a steel trestle and steel platform planar assembly object, and establishing a steel trestle and steel platform design management object and a longitudinal arrangement object group and a transverse arrangement object group of the steel trestle and steel platform on the graphic page; S3, setting the specifications and parameters of each component object in the longitudinal arrangement object group and the transverse arrangement object group on an operation interface of the steel trestle and steel platform design management object, and adjusting the spacing of the steel pipe columns and the distance from the steel pipe columns to one end of the main load-bearing beam in the longitudinal arrangement object group and the transverse arrangement object group to obtain a support design scheme of the steel trestle and steel platform meeting the design requirements; S4, establishing a first object group CAR relative to a first reference axis ZX1 to represent the planar position of the automobile load or tracked vehicle load on the steel trestle or steel platform, establishing a second object group LJ relative to a second reference axis ZX2 to represent the connection and arrangement between the steel pipe columns and the steel pipe sections, and finally establishing a third object group BEAM relative to a third reference axis ZX3 to represent the arrangement of the small cross beams, large cross beams and Bailey beams relative to the third reference axis ZX3 according to the longitudinal arrangement object group and the transverse arrangement object group of the steel trestle and steel platform; S5, when the first object group CAR, the second object group LJ or the third object group BEAM do not meet the design requirements, obtaining the first object group CAR, the second object group LJ and the third object group BEAM meeting the requirements through editing or modifying the attributes; S6, establishing a two-dimensional / three-dimensional mechanical calculation model or command stream data of the steel trestle and steel platform on the operation interface of the steel trestle and steel platform design management object according to the longitudinal arrangement object group and the transverse arrangement object group of the steel trestle and steel platform and the first object group CAR, the second object group LJ and the third object group BEAM; S7, if the mechanical analysis and calculation result does not meet the specification requirements, adjusting the longitudinal arrangement object group, the transverse arrangement object group and / or the vehicle load arrangement, and then repeating steps S3-S6 until the calculation result meets the requirements; S8, repeating steps S2-S7 to traverse all the steel trestle and steel platform planar assembly objects in the graphic page to obtain the longitudinal arrangement object group, the transverse arrangement object group, the first object group CAR, the second object group LJ and the third object group BEAM corresponding to all the steel trestle and steel platform planar assembly objects and the corresponding mechanical analysis and calculation results thereof; S9, establishing a design detail drawing of the steel trestle and steel platform on the graphic page according to the planar positional relationship of all the steel trestle and steel platform planar assembly objects. ​ 2. The method of rapid design of steel trestle and platform system according to claim 1, characterized in that, The longitudinal arrangement object group of the steel trestle and steel platform comprises small beam section objects, large beam section objects, bailey beam elevation objects, steel pipe column objects and steel pipe inter-column longitudinal connection objects.

3. The method of rapid design of steel trestle and platform system according to claim 1, characterized in that, The transverse arrangement object group of the steel trestle and steel platform comprises small beam elevation objects, large beam elevation objects, bailey beam section objects, railing vertical rod objects, steel pipe elevation objects, steel pipe column inter-column longitudinal connection objects and steel pipe column inter-column transverse connection objects.

4. The method for rapid design of steel jetty and steel platform system according to claim 1, characterized in that, In step S6, if there are several calculation conditions, a new first reference axis ZX1 is established by graphic copying, a new first object group CAR is established, and a vehicle load condition borne by the steel trestle and steel platform is formed by the new first reference axis ZX1 and the new first object group CAR; the vehicle load condition required is obtained by editing or modifying attributes; and a two-dimensional / three-dimensional mechanical calculation model or command stream data of the steel trestle and steel platform under different vehicle load conditions is established on the operation interface of the steel trestle and steel platform design management object; The two-dimensional / three-dimensional mechanical calculation model or command stream data of the steel trestle and steel platform is used to perform mechanical analysis and calculation of the steel trestle and steel platform.

5. The method of rapid design of steel trestle and platform system according to claim 1, characterized in that, The detailed design drawing of the steel trestle and steel platform comprises: The steel pipe column section and large beam plane object group XT1 associated with each steel trestle and steel platform plane assembly object, used to represent the plane arrangement of all steel pipe column sections and large beams on the steel trestle and steel platform; The large beam, small beam and bailey beam plane object group XT2, used to represent the plane arrangement of large beams, small beams and bailey beams on the steel trestle and steel platform; The object group XT3 formed by the main trestle transverse arrangement object group and the branch trestle longitudinal arrangement object group, used to represent the relative position and connection relationship between the main trestle cross section and the branch trestle longitudinal section; The object group XT4 formed by the branch trestle transverse arrangement object group and the steel platform transverse arrangement object group, used to represent the relative position relationship between the branch trestle cross section and the steel platform cross section; The steel pipe column section and steel pipe column inter-column connection plane object group XT5 in the main trestle, branch trestle and steel platform, used to represent all steel pipe column sections and their plane connection relationship in the steel trestle and steel platform; and The engineering quantity table of the steel trestle and steel platform.

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