Intelligent construction method and system for steel web composite structure based on space coordinate system

Abstract

The invention discloses an intelligent construction method and system for a steel web composite structure based on a space coordinate system, and the method comprises the steps: enabling a first wave plate to be orthogonally projected into a plane wave curve, building a space coordinate system, drawing up a cutting function and a cutting angle, and obtaining a reference cutting point and a target cutting point; the first waved plate is cut, and a contact surface curve space is generated to be in butt joint with the steel pipe in a matched mode; by establishing a space coordinate system and deriving a cutting function, mathematical modeling and a physical cutting process are combined, and high-precision cutting of the waved plate is achieved. Dynamically determining a reference cutting point and a target cutting point through a cutting function according to factors such as amplitude and wavelength of the waved plate, and ensuring that a contact surface curve space meets geometric requirements; a deformation compensation coefficient is introduced, particularly in complex curved surface cutting, curve deformation and adaptive adjustment after cutting are indirectly compensated, the contact surface matching problem is solved through dynamic matching of a coordinate system and cutting parameters, and the cutting precision is improved.

Description

Technical Field

[0001] The present invention relates to the field of bridges and building structures, and in particular to an intelligent construction method and system for a steel web composite structure based on a space coordinate system. Background Art

[0002] In the fields of architecture, bridges, steel structures, and composite structure engineering, corrugated plates are widely used for butt joints with cylindrical components such as steel pipes due to their good bending stiffness and lightweight characteristics, and are also an important part of the steel web of composite structure bridges. However, the connection method between corrugated plates and steel pipes in the prior art has significant defects, which seriously restricts the safety, durability, and aesthetics of the structure.

[0003] At present, the following method is mainly used to connect the corrugated plate and the steel pipe as the steel web in the composite structure engineering: directly attach a straight steel plate to the bottom of the corrugated plate, and weld the straight steel plate to the surface of the steel pipe. Although this method is simple to operate, it has the following key problems: The welding contact surface is too small: the plane shape of the additional straight steel plate cannot effectively match the curved surface of the steel pipe, and the actual welding contact area is only a linear or point area, resulting in a significant reduction in welding strength. Studies have shown that the shear strength of such welded joints is less than 40% of the theoretical value, and fatigue failure is prone to occur under dynamic loads.

[0004] Low durability: The narrow welding surface is susceptible to environmental corrosion and stress concentration, and the weld area is prone to cracks or even breakage, significantly shortening the service life of the structure. Statistics show that the average maintenance cycle of this type of connection is more than 50% shorter than that of traditional welded structures.

[0005] Poor aesthetics: The exposed additional straight steel plate destroys the original streamlined design of the corrugated plate, resulting in an abrupt and uneven interface, which is difficult to meet the strict requirements of modern engineering for aesthetic effects.

[0006] Insufficient adaptability: The existing technology does not perform targeted cutting processing on the corrugated plate and cannot form a matching contact surface according to the curvature of the steel pipe, which limits the application of special-shaped structures or high-precision assembly scenarios.

[0007] As the structures of large composite structural engineering projects develop towards lightweight, high durability and refined design, the defects of traditional connection methods are becoming increasingly prominent. For example, in cross-sea bridges or high-rise buildings, the durability of the connection nodes is directly related to the safe life of the overall structure; in the field of public buildings, the aesthetics of the interface has become an important indicator for design evaluation. In addition, the limitations of existing technologies also lead to material waste (such as additional processing of additional flat steel plates) and increased construction costs.

[0008] Therefore, an innovative technology is urgently needed that can form a groove contact surface that fully matches the curvature of the steel pipe by high-precision cutting of the corrugated plate, thereby greatly increasing the welding area, structural strength and aesthetics, while reducing maintenance costs. This improvement can not only fill the gap in existing technology, but also has important significance for promoting the technological upgrading of steel structure engineering. Summary of the invention

[0009] The purpose of the present invention is to provide an intelligent construction method for a steel web composite structure based on a spatial coordinate system, aiming to solve the technical problems of the steel web composite structure in the prior art, such as small welding surface, low durability, and low overall structural strength.

[0010] The embodiment of the present invention is implemented as follows: a method for intelligently constructing a steel web composite structure based on a spatial coordinate system, the method comprising the steps of: Project the first wave plate as a plane wave curve; Establishing a spatial coordinate system according to the plane wave curve; According to the spatial coordinate system, the cutting function and cutting angle are formulated. , obtain the reference cutting point Q and the target cutting point B; According to the cutting function, cutting angle , cutting the first corrugated plate with reference to the cutting point Q and the target cutting point B to generate a second corrugated plate with a contact surface curve space at the bottom, wherein the second corrugated plate is butted with the steel pipe through the contact surface curve space; Preferably, the spatial coordinate system includes X, Y, and Z axes, the X axis is the distance of the plane wave curve relative to the Y axis, the Y axis is the central axis of the contact surface curve space longitudinally through the first wave plate and the steel pipe after the first wave plate and the steel pipe are fitted and docked, and the Z axis is the height of the first wave plate; The step of "preparing a cutting function and a cutting angle according to the spatial coordinate system , obtain the reference cutting point Q and the target cutting point B" specifically as follows: Prerequisites for creating a complete cut of the first wave plate: , the reference cutting point Q is on and below the X axis; Assuming that the plane wave curve of the first wave plate satisfies the standard cutting cosine function, a circle is drawn with O' as the center and r as the radius. The circle intersects the X-axis at A and -A. A straight line is drawn through the center O' , , ; Get cutting angle , S is the wave period; Get reference cutting point ,y , -A <x<A, ; Get the target cutting point ; d and k are constants, and k is the deformation compensation coefficient; Preferably, the deformation compensation coefficient ; The target cutting point coordinate compensation is: ; Preferably, the reference cut point The coordinates of ,y, ); Preferably, the cutting angle satisfy , and Z The reference cutting point Q is on and below the X axis; Another object of the present invention is to provide an intelligent construction system for steel web composite structures based on a spatial coordinate system, the system comprising a digitization module, a coordinate system module, a parameter module, and a cutting module; A digitizing module, connected to the coordinate system module, is used to orthogonally project the first wave plate into a plane wave curve; A coordinate system module, connected to the digitization module and the parameter module, is used to establish a spatial coordinate system including X, Y, and Z axes; The parameter module is connected to the coordinate system module and the cutting module and is used to formulate the cutting function and cutting angle according to the spatial coordinate system. , obtain the reference cutting point Q and the target cutting point B, specifically: Prerequisites for creating a complete cut of the first wave plate: , the reference cutting point Q is on and below the X axis; Assuming that the plane wave curve of the first wave plate satisfies the standard cutting cosine function, a circle is drawn with O' as the center and r as the radius. The circle intersects the X-axis at A and -A. A straight line is drawn through the center O' , , ; Get cutting angle , S is the wave period; Get reference cutting point ,y , -A <x<A, ; Get the target cutting point ; d and k are constants, and k is the deformation compensation coefficient; A cutting module is connected to the parameter module and is used to , cutting the first corrugated plate with reference to the cutting point Q and the target cutting point B to generate a second corrugated plate with a contact surface curve space at the bottom; Preferably, the system further comprises a welding module, the welding module comprises a processor, a first welding gun body, a second welding gun body and a third welding gun body, the second welding gun body comprises a high-pressure device and an atomizing device; The first welding gun body is connected to the cutting module and the processor, and is used to instantly melt the metal on the surface of the second corrugated plate and the steel pipe along the surface angle after the second corrugated plate and the steel pipe are butted together by a laser beam or an electron beam with high energy density to form a molten pool, and fill the welding rod or welding wire into the molten pool to form a first welding surface; The processor is connected to the first welding gun body, the second welding gun body, and the third welding gun body, and is used to receive a start signal of the first welding gun body, and judge the continuous working time of the first welding gun body. For example, when the continuous working time of the first welding gun body reaches 800-1000 milliseconds, the high-voltage device of the second welding gun body is started; when the continuous working time reaches 1100-1300 milliseconds, the third welding gun body and the atomizing device are started, and a jet command is sent to the third welding gun body and a spray command is sent to the atomizing device at the same time; the spray line of the atomizing device of the second welding gun body intersects with the jet line of the third welding gun body at the first welding surface, and a second welding surface is formed; The high-pressure device is connected to the processor and the atomizing device, and is used to receive and execute processor instructions, and is also used to liquefy steel powder of the same material as the first corrugated plate under high pressure; at the same time, it notifies the processor, and the processor sends an air injection instruction to the third welding gun body; An atomizing device, connected to the high-pressure device and the processor, is used to receive a spray instruction, atomize the liquefied steel powder, and finally spray it onto the first welding surface to form a second welding surface; A third welding gun body is connected to the processor and is used to receive a jetting instruction and spray a protective gas to the first welding surface or the second welding surface to form an isolation layer; Preferably, the processor is also used to control the relative positions of the first welding gun body, the atomizing device of the second welding gun body and the third welding gun body, wherein the nozzle of the first welding gun body spraying the laser beam or electron beam, the spray head of the atomizing device of the second welding gun body and the spray head of the third welding gun body form an isosceles triangle, wherein the nozzle of the first welding gun body is at the vertex of the isosceles triangle, and the spray head of the atomizing device of the second welding gun body and the spray head of the third welding gun body are located side by side at two points at the bottom of the isosceles triangle; the isosceles side length is 8-15mm, preferably 10mm; and is also used to rotate and control the isosceles triangle according to the position of the first welding surface, that is, to ensure the formation of the first welding surface, to ensure that the first welding surface is just suitable for spraying steel powder and forming the second welding surface, and to ensure that the first welding surface and the second welding surface both keep running along the side surface of the contact surface curve space; Preferably, the welding module further comprises a bracket, the top end of which is located below the handle section of the welding module, and the end of the bracket is in an umbrella arc shape and can be nonlinearly displaced, so as to support the welding module.

[0011] Beneficial effects of the present invention: The present invention combines mathematical modeling with the physical cutting process by establishing a spatial coordinate system and deriving a cutting function, thereby achieving high-precision cutting of the first wave plate; according to factors such as the amplitude and wavelength of the first wave plate, the reference cutting point Q and the target cutting point B are dynamically determined through the cutting function to ensure that the contact surface curve space with the steel pipe after cutting meets the geometric requirements; a deformation compensation coefficient is introduced for the coordinates of the reference cutting point Q, especially the coordinates of the dynamic reference cutting point Q and the target cutting point B and the cutting angle are introduced in the cutting of complex surfaces. The calculation indirectly compensates for the curve deformation after cutting, implies the adaptive adjustment to the changing law, and actually solves the contact surface matching problem through the dynamic matching of the coordinate system and the cutting parameters. The contact surface after cutting is no longer a standard cosine function, which improves the cutting accuracy. The mathematical model of the present invention is combined with the standardized cutting process to reduce manual intervention, improve cutting accuracy and consistency, and greatly improve accuracy and efficiency, which is particularly suitable for mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a flow chart of the intelligent construction method of the steel web composite structure based on the space coordinate system of the present invention; Figure 2 It is a schematic diagram of the corrugated plate of the present invention being projected as a plane corrugated curve; Figure 3 This is a schematic diagram of dynamic cutting of the wave plate of the present invention; Figure 4 It is a schematic diagram of the plane structure of the steel web composite structure based on the space coordinate system of the present invention; Figure 5 It is a schematic diagram of the side structure of the steel web composite structure based on the space coordinate system of the present invention; Figure 6 It is a structural schematic diagram of the intelligent construction system of the present invention; Figure 7 Schematic diagram of the relative positions of key components of the welding module of the present invention. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. For the convenience of description, only the parts related to the embodiments of the present invention are shown. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0014] Embodiment 1 like Figure 1 The flowchart of the intelligent construction method of the steel web composite structure based on the space coordinate system of the present invention is shown, and the method comprises: S101, projecting the first wave plate into a plane wave curve; like Figure 2 The figure shows a plane wave curve diagram of the corrugated plate of the present invention when projected from the front. The corrugated plate is an arc angle, which refers to the arc-shaped bending part of the transition between adjacent wave crests and wave troughs on the plate surface. It is a continuous and smooth arc connecting the wave crests and wave troughs, similar to a part of a circular arc. When viewed from the side, the corrugated plate presents a periodically repeated wave shape, and the arc angle is the place where the waves rise and fall and turn. This embodiment uses a corrugated plate with an arc angle to enhance the overall structural performance of the steel web composite structure. Compared with straight steel plates and folded steel plates, it has better compression and bending resistance and can disperse stress. The positive projection maps the bottom of the first wave plate vertically to a plane to form a plane wave curve, such as Figure 2 As shown; In order to distinguish the corrugated plates before and after the intelligently constructed steel web composite structure, the corrugated plates in this embodiment are divided into a first corrugated plate and a second corrugated plate, wherein the first corrugated plate is a corrugated plate of the prior art, and the second corrugated plate is a corrugated plate intelligently constructed (cut) based on a spatial coordinate system according to the present invention; in order to facilitate understanding when drawing a diagram, Figure 4 , Figure 5 It is just a simple schematic diagram, which only shows the approximate appearance after the joint is connected. In the figure, 1 is the first wave plate, and 2 is the steel pipe (that is, the round steel pipe); S102, establishing a spatial coordinate system including X, Y, and Z axes according to the plane wave curve; A spatial coordinate system is established based on the relative position of the first corrugated plate and the steel pipe after docking, with the origin of the X, Y, and Z axes being O. Figure 2 , Figure 3 As shown, the X-axis is the distance of the plane wave curve (including crests, troughs, etc.) relative to the Y-axis; The Y axis is the central axis of the contact surface curve space after the first wave plate and the steel pipe are fitted and docked. For ease of understanding, Figure 5 , the Y axis can be simply understood as a straight line coordinate axis running vertically through the middle point from the crest to the trough of the first wave plate; The Z axis is the height of the first wave plate; In the spatial coordinate system of the X, Y, and Z axes, the projection of the X and Z axes about the Y axis is the XOZ coordinate system. Figure 3 Shown is a schematic diagram of dynamic cutting of a wave plate; S103, according to the spatial coordinate system, a cutting function and a cutting angle are formulated. , obtain the reference cutting point Q and the target cutting point B, specifically: S1031, creating the prerequisite for completely cutting the first wave plate: , the reference cutting point Q is on and below the X axis; In reality, a steel pipe with a diameter greater than the thickness of the first wave plate (the thickness here refers to the value of the peak minus the trough) is usually connected to the first wave plate. Therefore, when cutting the first wave plate, there must be a prerequisite to ensure that the first wave plate is completely cut. The complete cutting means that when the first wave plate is cut by the cutter, the edge of the first wave plate after cutting will not be too thick (that is, the peak or trough is not cut) or too little (that is, the cutting area exceeds the peak or trough). S1032, assuming that the plane wave curve of the first wave plate satisfies the standard cutting cosine function, draw a circle with O' as the center and r as the radius, and the circle intersects the X-axis at A and -A; Draw a straight line through the center O´ , ,Right now Parallel to the X axis; The diameter of the steel pipe is 2r, and the circle is the cross section of the steel pipe; , A is the amplitude of the wave line curve, that is, the distance from the coordinate origin O to the crest or trough, , is the diameter of the circle, which can also be understood as the diameter of the steel pipe; the wavelength is S or the wave period of the wavy curve is S, and each period S=2 ; S1033, get cutting angle ; like Figure 3 , AO´A is the cutting angle , select any point z in the AA arc interval 1 , draw a perpendicular line to the X-axis and intersect it at x 1 , and the straight line Intersect at point x 2 , z 1 x 2 Perpendicular to O´x 2 ; in , , , In actual cutting, dynamically adjust the reference cutting point Q and reference cutting point ,y , -A <x<A have For XYO´, S=T, which is the wave period, we have and again For x that satisfies ① According to the interior angle theorem of a triangle, the cutting angle satisfy , and Z The reference cutting point Q is on or below the X-axis to completely cut the first wave plate. for ,have ② Substituting ① into ②, we get the equation of z with respect to y: S1034, according to the cutting angle , obtain the reference cutting point Q; The coordinates of the reference cutting point Q are ( ,y, ) The coordinates of the reference cutting point Q (which can also be understood as the target cutting point B that has not been compensated for deformation) satisfy the following requirements: However, since the present invention aims to make the structure of the first wave plate and the steel pipe more stable after docking, it is necessary to introduce a deformation compensation coefficient for the coordinates of the reference cutting point Q. , so as to further obtain the target cutting point B after deformation compensation, And in the XOZ axis, , Right now, , 1 Lianlide, : d is a constant, and its value is , is a constant related to material elastic modulus, Poisson's ratio, density and other parameters; S104, according to the cutting function and the cutting angle , cutting the first corrugated plate with reference to the cutting point Q and the target cutting point B to generate a second corrugated plate with a contact surface curve space at the bottom, wherein the second corrugated plate is butted with the steel pipe through the contact surface curve space; The contact surface curve space is the curve space where the second corrugated plate and the steel pipe are completely fitted and connected, which is a complex curved surface space; In step S104, the steel cutter is used according to the cutting function, cutting angle , cutting the first corrugated plate with reference to the cutting point Q and the target cutting point B to generate a second corrugated plate with a contact surface curve space at the bottom; The steel cutter is a cutter in the prior art that can cut traditional corrugated plates, steel pipes and other steel materials. The steel cutter can be a flame cutter, a water cutter, a laser cutter, a plasma arc cutter, etc. in the prior art. The present invention preferably uses a laser cutter and a plasma arc cutter. During the cutting process, the cutting parameters of the steel cutter must be controlled. The cutting parameters include a cutting function, a cutting angle, a target cutting point, a guide rail distance, a cutting nozzle inclination angle, a back drag, etc., to ensure that the flatness and verticality of the corrugated plate cutting surface space (i.e., the contact surface curve space) match the steel pipe to be welded later. The present invention combines mathematical modeling with the physical cutting process by establishing a spatial coordinate system and deriving a cutting function, thereby achieving high-precision cutting of the first wave plate, especially introducing the coordinates of the dynamic reference cutting point Q, the target cutting point B and the cutting angle in complex curved surface cutting. Computation, which is non-obvious; Considering factors such as amplitude, wavelength, and cutting angle, the reference cutting point Q and target cutting point B are dynamically determined through the cutting function to ensure that the contact surface curve space with the steel pipe after cutting meets the geometric requirements; Through the correction terms in the cutting function (such as the introduction of square root terms, displacement parameters, etc.), the curve deformation after cutting is indirectly compensated, which implies adaptive adjustment to the changing law. Through the dynamic matching of the coordinate system and cutting parameters, the contact surface matching problem is actually solved. The contact surface after cutting is no longer a standard cosine function, which is a pioneering technology. By combining the standardized cutting process (such as adjusting the guide rail distance, cutting nozzle inclination, back-draft amount, etc. in the existing cutting technology) with the mathematical model of the present invention, manual intervention is reduced, cutting accuracy and consistency are improved, and the accuracy and efficiency are greatly improved, which is particularly suitable for mass production; The method proposed in the present invention can be adapted to different cutting technologies (such as flame cutting, plasma cutting, etc.), has good universality, expands the application scenarios of traditional cutting technologies, and has significant technical effects; Existing cutting technologies mostly rely on empirical parameters or simple geometric models, while this invention achieves systematic innovation from theory to practice by introducing complex mathematical functions (such as the modified cosine function, cutting angle formula, deformation compensation coefficient) and three-dimensional coordinate system. Further, the step S104 is specifically as follows: S1041, the steel cutter is configured to cut the steel according to the cutting function and the cutting angle. , cutting the first corrugated plate with reference to the cutting point Q and the target cutting point B and generating a contact surface curve space; S1042, collecting the excess steel material cut off, and cleaning, cutting or crushing the excess steel material into welding core; S1043, preparing a coating to wrap the welding core, and drying it to form a welding rod or welding wire; S1044, the first corrugated plate is butted against the steel pipe by a welding gun through the welding rod or welding wire in the contact surface curve space; In construction projects, when welding steel plates and steel pipes, welding rods or welding wires made of the same material as the parent material are used, which has the advantages of ensuring performance matching, improving welding quality, and enhancing structural stability. After welding, steel plates and steel pipes must jointly bear various loads imposed by the building structure. Using welding rods or welding wires made of the same material as the parent material can better match the mechanical properties of the weld, such as strength, hardness, and toughness, with the steel plate, ensuring that when bearing dynamic loads (such as earthquake forces) or static loads (such as the weight of the building itself), the weld will not be the first to deform or crack due to mismatched mechanical properties, thereby ensuring Safety and reliability of the entire structure; structures in construction projects may be exposed to various natural environments and face problems such as corrosion. Welding rods or welding wires made of the same material as steel plates have the same chemical composition as steel plates and can work with steel plates in terms of chemical properties such as corrosion resistance to improve the corrosion resistance and durability of welded joints in different environments and extend the service life of the structure; welding rods or welding wires of the same material have better metallurgical compatibility with steel plates, and during the welding process, they can fuse more evenly, reducing the generation of welding defects such as pores, slag inclusions, and incomplete fusion; for example, in carbon dioxide gas protection During welding, using welding wire that matches the material of the steel plate can make the welding process more stable and the molten droplet transition uniform, thereby effectively reducing the probability of welding defects. Due to the same material, the fluidity and wettability of the weld are more ideal during welding, which can better fill the weld gap, make the weld surface smoother and more uniform, and have a beautiful shape, which not only improves the appearance quality of the structure, but also helps to reduce stress concentration points and improve the overall performance of the structure. When welding with welding rods or welding wires made of the same material as the steel plate, the mechanical properties and thermal expansion coefficients between the weld and the steel plate are relatively consistent. During the welding process and use, when the structure is subjected to external force or temperature changes, the stress can be more evenly distributed between the weld and the parent material, avoiding premature damage to the structure due to stress concentration at the weld, thereby enhancing the stability of the entire structure. The welding rods or welding wires of the same material match the steel plate in terms of thermal physical properties, and the thermal deformation generated during welding is relatively small, and the deformation law is easier to predict and control. This is conducive to ensuring the dimensional accuracy of the structure after welding, reducing the correction work required due to excessive deformation, improving construction efficiency, and also helping to maintain the stability and safety of the structure. Furthermore, the step S104 may also be specifically as follows: The steel cutter is based on the cutting function and cutting angle. , cutting the first corrugated plate with reference to the cutting point Q and the target cutting point B and generating a contact surface curve space; Collecting the excess steel that has been cut, and cleaning, cutting or crushing the excess steel to produce steel powder; The contact surface curve space is welded to the first corrugated plate and the steel pipe by a welding gun through a welding rod or a welding wire, and the steel powder is sprayed on the weld at the same time; during the cutting process of the steel cutter, a high-speed rotating grinding device is arranged near the cutting area, and when the excess steel cut off falls, it is immediately ground into steel powder by the grinding device; during the steel plate welding process, the welding gun provides an arc or flame to melt the welding rod or welding wire (which can be a traditional welding rod or welding wire, or a welding rod or welding wire of the present invention), so as to achieve metal connection; during the welding process, the high temperature will expose the weld formed by welding and the surrounding metal to the air, which is easy to oxidize. In this embodiment, applying a layer of steel powder of the same material as the first corrugated plate during welding can play a certain protective role and prevent oxidation and corrosion; the steel powder can help the weld to be better fixed on the metal surface, prevent welding deformation, and can also increase the strength and hardness of the weld, thereby improving the welding quality; The present invention proposes an innovative method for butt-jointing corrugated steel plates and steel pipes through the systematic integration of mathematical modeling and dynamic cutting technology, which solves the core problems of the prior art such as small welding surface, low durability and poor aesthetics. In order to verify the implementation effect of the present invention, the inventor selected a variety of first wave plates, of which the thickness is 10, 15, and 20 mm, the width is H800, H700, and H600, and the length is 2 meters, 5 meters, and 10 meters; the steel pipe diameter is selected as 600mm, 1000mm, and 1200mm. Experiments (including tensile tests, bending tests, impact tests, and hardness tests) were conducted on the prior art and the technical solution of the present invention. The experimental performance comparison is shown in the following table: Conclusion: According to the technical solution of this embodiment, through stress distribution simulation analysis, the stress distribution of the welded joint is relatively uniform, and there is no obvious stress concentration point, indicating that the safety and reliability of the welded structure are high; the deformation of the welded joint is small, indicating that the rigidity and stability of the welded structure are good; This embodiment combines mathematical modeling with the physical cutting process by establishing a spatial coordinate system and deriving a cutting function, thereby achieving high-precision cutting of the first wave plate. According to factors such as the amplitude and wavelength of the first wave plate, the reference cutting point Q and the target cutting point B are dynamically determined through the cutting function to ensure that the contact surface curve space with the steel pipe after cutting meets the geometric requirements. A deformation compensation coefficient is introduced for the coordinates of the reference cutting point Q, especially for the introduction of the coordinates of the dynamic reference cutting point Q and the target cutting point B and the cutting angle in complex surface cutting. The calculation indirectly compensates for the curve deformation after cutting, implies the adaptive adjustment to the changing law, and actually solves the contact surface matching problem through the dynamic matching of the coordinate system and the cutting parameters. The contact surface after cutting is no longer a standard cosine function, which improves the cutting accuracy. The mathematical model of the present invention is combined with the standardized cutting process to reduce manual intervention, improve cutting accuracy and consistency, and greatly improve accuracy and efficiency, which is particularly suitable for mass production.

[0015] Embodiment 2 Figure 6 The figure shows a schematic diagram of a structure of an intelligent construction system of a steel web composite structure based on a space coordinate system of the present invention, wherein the system comprises: a digitization module, a coordinate system module, a parameter module, and a cutting module; A digitizing module, connected to the coordinate system module, is used to orthogonally project the first wave plate into a plane wave curve; The positive projection finger vertically maps the bottom of the first wave plate to a plane to form a plane wave curve; A coordinate system module, connected to the digitization module and the parameter module, is used to establish a spatial coordinate system including X, Y, and Z axes; A spatial coordinate system is established according to the relative position of the first corrugated plate and the steel pipe after docking, with the origin of the X, Y and Z axes being O, wherein the X axis is the distance of the plane wave curve (including crests, troughs, etc.) relative to the Y axis; The Y axis is the longitudinal through-axis of the wave curve after the first wave plate and the steel pipe are matched. For ease of understanding, the Y axis can be simply understood as a straight line coordinate axis that passes through the middle point from the crest to the trough of the first wave plate; The Z axis is the height axis of the first wave plate; In the spatial coordinate system of X, Y, and Z axes, the projection of the X and Z axes about the Y axis is the XOZ coordinate system; The parameter module is connected to the coordinate system module and the cutting module and is used to formulate the cutting function and cutting angle according to the spatial coordinate system. , obtain the reference cutting point Q and the target cutting point B, specifically: Prerequisites for creating a complete cut of the first wave plate: , the reference cutting point Q is on and below the X axis; In reality, a steel pipe with a diameter greater than the thickness of the first wave plate (the thickness here refers to the value of the peak minus the trough) is usually connected to the first wave plate. Therefore, when cutting the first wave plate, there must be a prerequisite to ensure that the first wave plate is completely cut. The complete cutting means that when the first wave plate is cut by the cutter, the edge of the first wave plate after cutting will not be too thick (that is, the peak or trough is not cut) or too little (that is, the cutting area exceeds the peak or trough). Assuming that the wave curve of the first wave plate satisfies the standard cutting cosine function, a circle is drawn with O' as the center and r as the radius, and the circle intersects the X-axis at A and -A; Draw a straight line through the center O´ , ,Right now Parallel to the X axis; The diameter of the steel pipe is 2r, and the circle is the cross section of the steel pipe; , A is the amplitude of the wave line curve, that is, the distance from the coordinate origin O to the crest or trough, , is the diameter of the circle, which can also be understood as the diameter of the steel pipe; the wavelength is S or the wave period of the wavy curve is S, and each period S=2 ; Get cutting angle ; AO´A is the cutting angle , select any point z in the AA arc interval 1 , draw a perpendicular line to the X-axis and intersect it at x 1 , and the straight line Intersect at point x 2 , z 1 x 2 Perpendicular to x 2 ; in , , , In actual cutting, dynamically adjust the reference cutting point Q and reference cutting point ,y , -A <x<A have For XYO´, S=T, which is the wave period, we have and again For x that satisfies ① According to the interior angle theorem of a triangle, the cutting angle satisfy , and Z The reference cutting point Q is on or below the X-axis to completely cut the first wave plate. for ,have ② Substituting ① into ②, we get the equation of z with respect to y: According to the cutting angle , obtain the reference cutting point Q; The coordinates of the reference cutting point Q are ( ,y, ) The coordinates of the reference cutting point Q (which can also be understood as the target cutting point B that has not been compensated for deformation) satisfy the following requirements: However, since the present invention aims to make the structure after the first corrugated plate and the steel pipe are butt-jointed more stable, it is necessary to introduce a deformation compensation coefficient k for the coordinates of the reference cutting point Q, so as to further obtain the target cutting point B after deformation compensation. And in the XOZ axis, , Right now, , 1 Lian Li De, d is a constant, and its value is , is a constant related to material elastic modulus, Poisson's ratio, density and other parameters; A cutting module is connected to the parameter module and is used to , cutting the first corrugated plate with reference to the cutting point Q and the target cutting point B to generate a second corrugated plate with a contact surface curve space at the bottom; The contact surface curve space is the curve space where the first wave plate (which can also be understood as the second wave plate) and the steel pipe are completely matched and connected, which is a complex curved surface space; The cutting module may be a cutter capable of cutting the first wave plate, steel pipe and other steel materials in the prior art. The steel material cutter may be a flame cutter, a water cutter, a laser cutter, a plasma arc cutter and the like in the prior art. The present invention preferably uses a laser cutter and a plasma arc cutter. During the cutting process, the cutting parameters of the steel material cutter shall be controlled. The cutting parameters include a cutting function, a cutting angle, a target cutting point, a guide rail distance, a cutting nozzle inclination angle, a back drag and the like, so as to ensure that the flatness and verticality of the cutting surface space (i.e., the contact surface curve space) of the first wave plate are matched with the steel pipe to be welded later. Furthermore, the system further comprises a welding module, which is connected to the cutting module and is used to fit and dock the first corrugated plate with the steel pipe through the contact surface curve space; The welding module is a welding device for welding steel structures in the prior art; The cutting module is further optimized for , cutting the first corrugated plate with reference to the cutting point Q and the target cutting point B and generating a contact surface curve space; collecting the excess steel cut off, cleaning, cutting or crushing the excess steel to make a welding core; preparing a coating to wrap the welding core, and drying it to make a welding rod or welding wire; The welding module is also used to butt the first corrugated plate and the steel pipe together through the contact surface curve space and the welding rod or welding wire; In construction projects, when welding steel plates and steel pipes, welding rods or welding wires made of the same material as the parent material are used, which has the advantages of ensuring performance matching, improving welding quality, and enhancing structural stability. After welding, steel plates and steel pipes must jointly bear various loads imposed by the building structure. Using welding rods or welding wires made of the same material as the parent material can better match the mechanical properties of the weld, such as strength, hardness, and toughness, with the steel plate, ensuring that when bearing dynamic loads (such as earthquake forces) or static loads (such as the weight of the building itself), the weld will not be the first to deform or crack due to mismatched mechanical properties, thereby ensuring Safety and reliability of the entire structure; structures in construction projects may be exposed to various natural environments and face problems such as corrosion. Welding rods or welding wires made of the same material as steel plates have the same chemical composition as steel plates and can work with steel plates in terms of chemical properties such as corrosion resistance to improve the corrosion resistance and durability of welded joints in different environments and extend the service life of the structure; welding rods or welding wires of the same material have better metallurgical compatibility with steel plates, and during the welding process, they can fuse more evenly, reducing the generation of welding defects such as pores, slag inclusions, and incomplete fusion; for example, in carbon dioxide gas protection During welding, using welding wire that matches the material of the steel plate can make the welding process more stable and the molten droplet transition uniform, thereby effectively reducing the probability of welding defects. Due to the same material, the fluidity and wettability of the weld are more ideal during welding, which can better fill the weld gap, make the weld surface smoother and more uniform, and have a beautiful shape, which not only improves the appearance quality of the structure, but also helps to reduce stress concentration points and improve the overall performance of the structure. When welding with welding rods or welding wires of the same material as the steel plate, the mechanical properties and thermal expansion coefficients between the weld and the steel plate are relatively consistent. During the welding process and use, when the structure is subjected to external force or temperature changes, the stress can be more evenly distributed between the weld and the parent material, avoiding premature damage to the structure due to stress concentration at the weld, thereby enhancing the stability of the entire structure. The welding rods or welding wires of the same material match the steel plate in thermal physical properties, and the thermal deformation generated during welding is relatively small, and the deformation law is easier to predict and control, which is conducive to ensuring the dimensional accuracy of the structure after welding, reducing the correction work required due to excessive deformation, improving construction efficiency, and also helping to maintain the stability and safety of the structure. The cutting module is further optimized for , cutting the first corrugated plate with reference to the cutting point Q and the target cutting point B and generating a contact surface curve space; collecting the excess steel cut off, and cleaning, cutting or crushing the excess steel into steel powder; The welding module is also used to butt the first corrugated plate with the steel pipe through the contact surface curve space using a welding rod or welding wire made of the same material as the first corrugated plate, and spray steel powder made of the same material as the first corrugated plate on the weld. The cutting module is further optimized for , cutting the first corrugated plate with reference to the cutting point Q and the target cutting point B and generating a contact surface curve space; a high-speed rotating grinding device is arranged near the cutting area, and when the excess steel material falls off after being cut, it is immediately cleaned, cut or crushed by the grinding device to produce steel powder; During the steel plate welding process, the welding module provides an arc or flame to melt the welding rod or welding wire (which can be a traditional welding rod or welding wire or the welding rod or welding wire of the present invention), thereby realizing the connection of the metals; during the welding process, the high temperature will expose the weld formed by welding and the surrounding metal to the air, which is easy to oxidize. In this embodiment, a layer of steel powder made of the same material as the first wave plate is applied during welding, which can play a certain protective role and prevent oxidation and corrosion; the steel powder can help the weld to be better fixed on the metal surface, prevent welding deformation, and can also increase the strength and hardness of the weld, thereby improving the welding quality; Further, the welding module includes a processor, a first welding gun body, a second welding gun body and a third welding gun body, and the second welding gun body includes a high-pressure device and an atomizing device; like Figure 6 As shown, the first welding gun body is connected to the cutting module and the processor, and is used to instantly melt the metal on the surface of the second corrugated plate and the steel pipe along the surface angle after the second corrugated plate and the steel pipe are butted together by a laser beam or an electron beam with high energy density to form a molten pool, and fill the welding rod or welding wire into the molten pool to form a first welding surface; The first welding surface is the outer surface of the molten pool formed by the angled surface; For ease of understanding, Figure 6 Only the surface angle between the second corrugated plate and the steel pipe after butting is shown, while the second corrugated plate and the steel pipe are omitted; The processor is connected to the first welding gun body, the second welding gun body, and the third welding gun body, and is used to receive the start signal of the first welding gun body, judge the continuous working time of the first welding gun body, if the continuous working time of the first welding gun body is 0, then wait, if the continuous working time reaches 800-1000 milliseconds, start the high-voltage device of the second welding gun body; when the continuous working time reaches 1100-1300 milliseconds, start the third welding gun body and the atomizing device, and send the jet command to the third welding gun body and the spray command to the atomizing device at the same time; it is also used to control the relative positions of the atomizing device of the first welding gun body, the second welding gun body, and the third welding gun body, wherein the nozzle of the first welding gun body spraying the laser beam or electron beam, the spray head of the atomizing device of the second welding gun body, and the nozzle of the third welding gun body form an isosceles triangle, such as Figure 7It is a schematic diagram of the relative positions of the key components of the welding module, wherein the nozzle of the first welding gun body is at the vertex of the isosceles triangle, and the spray head of the second welding gun body atomization device and the third welding gun body air jet head are located side by side at two points at the bottom of the isosceles triangle; the isosceles side length is 8-15mm, preferably 10mm; the spray line of the second welding gun body atomization device and the air jet line of the third welding gun body intersect at the first welding surface and form a second welding surface; it is also used to rotate and control the isosceles triangle according to the position of the first welding surface, that is, to ensure the formation of the first welding surface, and to ensure that the first welding surface is just suitable for spraying steel powder and forming the second welding surface, and to ensure that the first welding surface and the second welding surface are both kept running along the side surface of the contact surface curve space, so that the second wave plate and the steel pipe can be intelligently, semi-automatically, and completely matched for welding; The high-pressure device is connected to the processor and the atomizing device, and is used to receive and execute processor instructions, and is also used to liquefy steel powder of the same material as the first corrugated plate under high pressure; at the same time, it notifies the processor, and the processor sends an air injection instruction to the third welding gun body; An atomizing device, connected to the high-pressure device and the processor, is used to receive a spray instruction, atomize the liquefied steel powder, and finally spray it onto the first welding surface to form a second welding surface; a third welding gun body connected to the processor, for receiving a jet command, and spraying a shielding gas to the first welding surface or the second welding surface to form an isolation layer, so as to prevent oxygen in the air from contacting the molten second welding surface, thereby further increasing the strength and corrosion resistance of the weld; Furthermore, the welding module further comprises a bracket, the top end of which is located below the handle section of the welding module, the end of which is in an umbrella arc shape and can be nonlinearly displaced, that is, the nonlinear relationship between the applied force and the resulting displacement can play a role in temporarily locking the displacement state, and is used to support the welding module and prevent fatigue; Furthermore, the bracket is composed of a screw, a nut, a reverse device and a ball. When the screw or the nut rotates, the ball rolls in the thread raceway to convert the rotary motion into the linear motion or the linear motion into the rotary motion. When rotating (axial rotation) or moving linearly (length extension), due to the presence of a certain preload force (set for the purpose of eliminating gaps, improving rigidity, etc.) and friction between the ball and the raceway, a certain force is required to drive, thereby achieving high-precision, high-efficiency support and arc displacement. Furthermore, the bracket is composed of an inner spline and an outer spline. The outer spline has longitudinal key teeth on the outer surface of the shaft, and the inner spline has corresponding key teeth on the inner surface of the hub hole. When the shaft needs to rotate axially, due to the meshing between the key teeth and a certain matching accuracy, a certain friction resistance will be generated, and a certain force is required to drive the rotation; when there is a relative movement (extension) requirement in the axial direction, due to the interaction of the key teeth and surface friction and other factors, a certain force needs to be applied to achieve extension and contraction; fatigue is relieved, effort is saved, efficiency is improved, and welding accuracy is not reduced; Similarly, this implementation has also been experimentally verified, and the comparison table is the same as that of the first embodiment, and will not be repeated here; In this embodiment, the first wave plate is projected into a plane wave curve by a digitization module, the coordinate system module establishes a spatial coordinate system including X, Y, and Z axes, and the parameter module formulates a cutting function and a cutting angle according to the spatial coordinate system. , obtain the reference cutting point Q and the target cutting point B, and the cutting module is based on the cutting function and the cutting angle , reference cutting point Q and target cutting point B are used to cut the first wave plate and generate a second wave plate with a contact surface curve space at the bottom; this embodiment combines mathematical modeling with the physical cutting process by establishing a spatial coordinate system and deriving a cutting function, thereby achieving high-precision cutting of the first wave plate; according to factors such as the amplitude and wavelength of the first wave plate, the reference cutting point Q and the target cutting point B are dynamically determined through the cutting function to ensure that the contact surface curve space with the steel pipe after cutting meets the geometric requirements; a deformation compensation coefficient is introduced for the coordinates of the reference cutting point Q, especially the coordinates and cutting angle of the dynamic reference cutting point Q and the target cutting point B are introduced in the cutting of complex surfaces. The calculation indirectly compensates for the curve deformation after cutting, implies adaptive adjustment to the changing law, and actually solves the contact surface matching problem through dynamic matching of the coordinate system and the cutting parameters. The contact surface after cutting is no longer a standard cosine function, thereby improving the cutting accuracy. On the basis of the standardized cutting process, the mathematical model of the present invention is combined to reduce manual intervention, improve cutting accuracy and consistency, and greatly improve accuracy and efficiency, which is particularly suitable for mass production. The present embodiment also collects the excess steel cut off by the cutting module, cleans, cuts or crushes the excess steel to make a welding core; prepares a coating to wrap the welding core, and dries it to make a welding rod or welding wire. The welding module fits the first corrugated plate and the steel pipe together with the welding rod or welding wire through the contact surface curve space. The use of welding rods or welding wires made of the same material as the parent material can make the mechanical properties of the weld, such as strength, hardness, and toughness, similar to those of the steel. The plates are better matched to ensure that when subjected to dynamic loads or static loads, the welds will not be the first to experience deformation, cracking and other problems due to mismatched mechanical properties, thereby ensuring the safety and reliability of the entire structure; further, the excess steel cut by the cutting module is collected, the excess steel is cleaned, cut or crushed to make steel powder, and the welding module sprays steel powder of the same material as the first wave plate on the weld at the same time. Applying a layer of steel powder of the same material as the first wave plate while welding can play a certain protective role to prevent oxidation and corrosion. Steel powder can help the weld to be better fixed on the metal surface, prevent welding deformation, and increase the strength and hardness of the weld to improve welding quality; this embodiment also refines the welding module to make the system of this embodiment more creative; it also prevents fatigue by adding a bracket to achieve high-precision, high-efficiency support and arc displacement to improve efficiency.

[0016] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent construction method for steel web composite structure based on a spatial coordinate system, characterized in that: The method comprises the steps of: Project the first wave plate as a plane wave curve; Establishing a spatial coordinate system according to the plane wave curve; According to the spatial coordinate system, the cutting function and cutting angle are formulated. , obtain the reference cutting point Q and the target cutting point B; According to the cutting function, cutting angle , the first corrugated plate is cut with reference to the cutting point Q and the target cutting point B to generate a second corrugated plate with a contact surface curve space at the bottom, and the second corrugated plate is fitted and docked with the steel pipe through the contact surface curve space.

2. The intelligent construction method of steel web composite structure based on spatial coordinate system according to claim 1 is characterized in that: The spatial coordinate system includes X, Y, and Z axes, wherein the X axis is the distance of the plane wave curve relative to the Y axis, the Y axis is the central axis of the contact surface curve space longitudinally penetrated after the first wave plate and the steel pipe are fitted and docked, and the Z axis is the height of the first wave plate; The step "prepares a cutting function and a cutting angle according to the spatial coordinate system , obtain the reference cutting point Q and the target cutting point B" specifically as follows: Prerequisites for creating a complete cut of the first wave plate: , the reference cutting point Q is on and below the X axis; Assuming that the plane wave curve of the first wave plate satisfies the standard cutting cosine function, a circle is drawn with O' as the center and r as the radius. The circle intersects the X-axis at A and -A. A straight line is drawn through the center O' , , ; Get cutting angle , S is the wave period; Get reference cutting point ,y , -A <x<A, ; Get the target cutting point ; d and k are constants, and k is the deformation compensation coefficient.

3. The intelligent construction method of steel web composite structure based on spatial coordinate system according to claim 2 is characterized in that: Deformation compensation coefficient ; The target cutting point coordinate compensation is: 。 4. The intelligent construction method of steel web composite structure based on space coordinate system according to claim 3 is characterized in that: Reference cutting point The coordinates of ,y, ).

5. The intelligent construction method of steel web composite structure based on space coordinate system according to claim 4 is characterized in that: Reference cutting point The coordinates of satisfy the following conditions: .

6. The intelligent construction method of steel web composite structure based on space coordinate system according to claim 2 is characterized in that: Cutting Angle satisfy , and Z The reference cutting point Q is on and below the X-axis.

7. An intelligent construction system for steel web composite structure based on a spatial coordinate system, characterized in that: The system includes a digitization module, a coordinate system module, a parameter module, and a cutting module; A digitizing module, connected to the coordinate system module, is used to orthogonally project the first wave plate into a plane wave curve; A coordinate system module, connected to the digitization module and the parameter module, is used to establish a spatial coordinate system including X, Y, and Z axes; The parameter module is connected to the coordinate system module and the cutting module and is used to formulate the cutting function and cutting angle according to the spatial coordinate system. , obtain the reference cutting point Q and the target cutting point B, specifically: Prerequisites for creating a complete cut of the first wave plate: , the reference cutting point Q is on and below the X axis; Assuming that the plane wave curve of the first wave plate satisfies the standard cutting cosine function, a circle is drawn with O' as the center and r as the radius. The circle intersects the X-axis at A and -A. A straight line is drawn through the center O' , , ; Get cutting angle , S is the wave period; Get reference cutting point ,y , -A <x<A, ; Get the target cutting point ; d and k are constants, and k is the deformation compensation coefficient; A cutting module is connected to the parameter module and is used to , the first corrugated plate is cut with reference to the cutting point Q and the target cutting point B to generate a second corrugated plate with a contact surface curve space at the bottom.

8. The intelligent construction system for steel web composite structure based on space coordinate system according to claim 7 is characterized in that: The system further comprises a welding module, the welding module comprising a processor, a first welding gun body, a second welding gun body and a third welding gun body, the second welding gun body comprising a high pressure device and an atomizing device; The first welding gun body is connected to the cutting module and the processor, and is used to instantly melt the metal on the surface of the second corrugated plate and the steel pipe along the surface angle after the second corrugated plate and the steel pipe are butted together by a laser beam or an electron beam with high energy density to form a molten pool, and fill the welding rod or welding wire into the molten pool to form a first welding surface; The processor is connected to the first welding gun body, the second welding gun body, and the third welding gun body, and is used to receive a start signal of the first welding gun body, and judge the continuous working time of the first welding gun body. For example, when the continuous working time of the first welding gun body reaches 800-1000 milliseconds, the high-voltage device of the second welding gun body is started; when the continuous working time reaches 1100-1300 milliseconds, the third welding gun body and the atomizing device are started, and a jet command is sent to the third welding gun body and a spray command is sent to the atomizing device at the same time; the spray line of the atomizing device of the second welding gun body intersects with the jet line of the third welding gun body at the first welding surface, and a second welding surface is formed; The high-pressure device is connected to the processor and the atomizing device, and is used to receive and execute processor instructions, and is also used to liquefy steel powder of the same material as the first corrugated plate under high pressure; at the same time, it notifies the processor, and the processor sends an air injection instruction to the third welding gun body; An atomizing device, connected to the high-pressure device and the processor, is used to receive a spray instruction, atomize the liquefied steel powder, and finally spray it onto the first welding surface to form a second welding surface; The third welding gun body is connected to the processor and is used for receiving the jetting instruction and spraying the protective gas to the first welding surface or the second welding surface to form an isolation layer.

9. The intelligent construction system for steel web composite structure based on spatial coordinate system according to claim 8 is characterized in that: The processor is also used to control the relative positions of the first welding gun body, the atomizing device of the second welding gun body and the third welding gun body, wherein the nozzle of the first welding gun body spraying the laser beam or electron beam, the spray head of the atomizing device of the second welding gun body and the spray head of the third welding gun body form an isosceles triangle, wherein the nozzle of the first welding gun body is at the vertex of the isosceles triangle, and the spray head of the atomizing device of the second welding gun body and the spray head of the third welding gun body are located side by side at two points at the bottom of the isosceles triangle; the isosceles side length is 8-15mm, preferably 10mm; and is also used to rotate and control the isosceles triangle according to the position of the first welding surface, that is, to ensure the formation of the first welding surface, to ensure that the first welding surface is just suitable for spraying steel powder and forming the second welding surface, and to ensure that both the first welding surface and the second welding surface remain running along the side surface of the contact surface curve space.

10. The intelligent construction system for steel web composite structure based on space coordinate system according to claim 9, characterized in that: The welding module also includes a bracket, the top end of which is located below the handle section of the welding module, and the end of the bracket is in an umbrella arc shape and can be nonlinearly displaced, so as to support the welding module.

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