Method for assembling spatial multi-curved pipe

Abstract

The present application relates to a kind of space multi-curved pipe assembling methods, step 1: first the conversion of the multi-curved pipe needing to be assembled into three-dimensional drawing;Step 2: set three-dimensional coordinate system;Step 3: adjust camber direction;Step 4: mark the port position of each pipe;Step 5: set reference line;Step 6: single curved pipe upper part is set to review point;Step 7: mark the size of through hole, component overall length, single curved bar number and other auxiliary content;Step 8: multi-curved pipe is laid horizontally;Step 9: the two end points of multi-curved pipe are set;Step 10: Z direction is measured by level and tower scale;Step 11: the size of each port and reference line is measured in the process of bar placement;Step 12: adjust the position of pipe according to the review point on the upper part of pipe;Step 13: review.The present application reduces construction cost, can adapt to poor construction site, and strengthens the adaptability of multi-curved pipe assembly to site.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel structure building, in particular to a space multi-curved pipe assembling method. BACKGROUND

[0002] With the development and progress of the construction industry, in order to meet the requirements of people on building individualization, the modeling of building structure is often various. Steel structure is more and more widely used in building engineering, and its design modeling is also endless, especially in the aspect of pipe structure, multi-curved structure is increasingly rich. It is a technical problem that needs to be solved at present to accurately reflect the design intention in construction and to complete the assembly with quality and quantity under the limited construction conditions.

[0003] At present, the total station is mainly used to position the pipe opening and the center point of the pipe. This method requires the total station and the matching survey personnel during construction, and the requirements for equipment and personnel quality are high. During construction, the pipe can only be installed according to the sequence of each component, and the total station needs a long time to measure and position a single point, so this method has low construction efficiency and low utilization rate of personnel and machinery.

[0004] Through retrieval, (1) CN 108838618 A is a space multi-curved intersecting pipe machining and manufacturing method, which is a multi-curved pipe assembling method. This patent is mainly suitable for factory assembly, and is highly affected by external factors such as wind, rain and dust when they occur. The site requirement is high. This patent uses a two-dimensional plan.

[0005] (2) CN 113006497 A is a construction method for large-span steel truss multi-curved dome structure, which is a multi-curved structure assembling method. This patent completes the assembly through the positioning of the jig frame; this patent is not suitable for the case where the bending radius is small and the single-curved pipe is short.

[0006] (3) CN 105970811 A is a large-span space three-dimensional curved fish belly type box type steel structure viaduct construction process, which is a multi-curved structure assembling method. This patent completes the assembly through the positioning of the jig frame. SUMMARY

[0007] The present application aims to overcome the defects of the prior art and provide a space multi-curved pipe assembling method,

[0008] In order to solve the above technical problems, the present application is implemented as follows:

[0009] A space multi-curved pipe assembling method, characterized in that it comprises the following steps:

[0010] Step 1: convert the multi-curved pipe to be assembled into a three-dimensional drawing;

[0011] Step 2: Set up a three-dimensional coordinate system, X axis is the connecting line of the end of the multi-curved pipe, Y axis is the vertical line perpendicular to the X axis at the maximum arch height of the multi-curved pipe;

[0012] Step 3: Adjust the arch direction, the ends are flush, and the arch should be in the same direction;

[0013] Step 4: Label the port position of each circular pipe, and label the circular pipe port size in the XY plane;

[0014] Step 5: Set a reference line, and label the Z value at the port through the reference line;

[0015] Step 6: Set a review point on the upper part of the single-curved circular pipe;

[0016] Step 7: Mark the size of the through hole, the overall length of the component, and the auxiliary content such as the single-curved rod number;

[0017] Step 8: The multi-curved pipe is laid horizontally, and a jig is set on the ground. After the jig is completed, the jig surface is leveled;

[0018] Step 9: Set two end points of the multi-curved circular pipe, and set a solid reference line in the X direction. The Y direction data can be measured without setting a solid line;

[0019] Step 10: Measure the Z direction by using a level and a tower scale, and measure the port vertex of the multi-curved pipe using the offset value of the reference line;

[0020] Step 11: Measure the size of each port and the reference line during the placement of the rod; a portable gantry support can be used when fine-tuning the position of the rod. After adjustment, a clamping plate is set on the jig to fix the position of the circular pipe, and the assembly is completed.

[0021] Step 12: Adjust the position of the circular pipe according to the review point on the upper part of the circular pipe;

[0022] Step 13: Finally, recheck all the labels on the drawing, and weld after confirming that there is no error.

[0023] The portable gantry support comprises an angle steel frame, a connecting lifting lug is arranged in the top of the angle steel frame, the circular pipe is hoisted by the connecting lifting lug through a hand-operated hoist, and a jig is arranged at the lower part of the circular pipe.

[0024] The beneficial effects of the present application are: compared with the prior art (1), the present application innovatively labels the size of the three-dimensional drawing, and directly uses the three-dimensional drawing to view the forming effect of the multi-curved component and compare with the actual object, which is beneficial for referring to the actual object and the drawing during construction.

[0025] Compared with the comparative file (2), it is different from the direct positioning of the component in the application.

[0026] Compared with the comparative file (3), the cross section is different, the circular cross section is different from the box type cross section, the installation method is different, and the direct positioning of the component in the application is different.

[0027] The application significantly improves the construction efficiency, reduces the construction difficulty and construction cost, can adapt to poor construction site, and strengthens the adaptability of multi-curved pipe assembly to the site. BRIEF DESCRIPTION OF DRAWINGS

[0028] The application will be further described in detail below in combination with the drawings and embodiments:

[0029] Figure 1 Process one for drawing annotation of multi-curved pipe composed of multiple single curved pipes.

[0030] Figure 2 Process two for drawing annotation of multi-curved pipe composed of multiple single curved pipes.

[0031] Figure 3 Process three for drawing annotation of multi-curved pipe composed of multiple single curved pipes.

[0032] Figure 4 Process three for drawing annotation of multi-curved pipe composed of multiple single curved pipes. Figure 3 Front view.

[0033] Figure 5 Process four for drawing annotation of multi-curved pipe composed of multiple single curved pipes.

[0034] Figure 6 Process four for drawing annotation of multi-curved pipe composed of multiple single curved pipes. Figure 5 Front view.

[0035] Figure 7 Process five for drawing annotation of multi-curved pipe composed of multiple single curved pipes.

[0036] Figure 8 Process five for drawing annotation of multi-curved pipe composed of multiple single curved pipes. Figure 7 Front view.

[0037] Figure 9 Process six for drawing annotation of multi-curved pipe composed of multiple single curved pipes.

[0038] Figure 10 Process six for drawing annotation of multi-curved pipe composed of multiple single curved pipes. Figure 9 Front view.

[0039] Figure 11 Portable gantry crane unit.

[0040] Figure 12 Portable gantry crane use case. DETAILED DESCRIPTION

[0041] A spatial multi-curved pipe assembling method, comprising the following steps:

[0042] Step 1: Convert the multi-curved pipe to be assembled into a three-dimensional drawing, and each pipe will be dimensioned in the three-dimensional drawing. The original state of the three-dimensional drawing of the multi-curved pipe is as follows: Figure 1 .

[0043] Step 2: Set up a three-dimensional coordinate system, with the X axis being the connecting line of the end of the multi-curved pipe, and the Y axis being the perpendicular line perpendicular to the X axis at the maximum arch height of the multi-curved pipe, as follows: Figure 2 .

[0044] Step 3: Adjust the arch direction, and the ends are flush. The arch direction should be uniform. This method can effectively utilize the plane jig, and combine the plan view and the front view into the same operation plane, as follows: Figure 3 , 4 In the figure, the numbers 1-6 are the numbers of the circular pipes.

[0045] Step 4: Label the port position of each circular pipe, and label the size of the circular pipe port in the XY plane, as follows: Figure 5 , 6 .

[0046] Step 5: Set a reference line, and label the Z value at the port through the reference line, as follows: Figure 7 , 8 .

[0047] Step 6: Set a review point on the upper part of the single-curved circular pipe, which is used for position review of the circular pipe assembly, as follows: Figure 9 , 10 .

[0048] Step 7: Mark the size of the penetration, the overall length of the component, the number of single-curved bars, and other auxiliary contents, as follows: Figure 9 , 10 At this time, the drawing has been labeled and has the construction conditions. The subsequent steps are the assembling construction method.

[0049] Step 8: The multi-curved pipe is assembled in a horizontal manner, and a jig is set up on the ground. The size of the jig is set according to the maximum width and length of the multi-curved pipe. After the jig is completed, the use surface of the jig needs to be leveled.

[0050] Step 9: Set two end points of the multi-curved circular pipe. The X direction should be set with a solid reference line (this line is an important reference line, and each point in the XY plane is controlled according to this line. After the completion of the setting, attention should be paid to the protection), and the Y direction data can not be set with a solid line. The measurement uses a line hammer and a steel tape. The measurement value should refer to the plan view in Figure 9 , 10 .

[0051] Step 10: Z direction is measured by level and tower ruler, the port vertex of multi-curved pipe is measured by the offset value of reference line, the measured value here should refer to the front view in Figure 9 、 10 .

[0052] Step 11: The size of each port and reference line is measured during the placement of the rod, the size in X and Y directions is determined first, then the size in Z direction and the angle is adjusted. Portable gantry support can be used when fine-tuning the position of the rod, as shown in Figure 11 . The portable gantry support 12 includes an angle steel frame 7, a connecting lifting lug 8 is arranged in the top of the angle steel frame, the connecting lifting lug hoists a round pipe 11 through a hand chain block 9, and a jig frame 10 is arranged at the lower part of the round pipe. The portable gantry support should be used in groups, after adjustment, a clamping plate is arranged on the jig frame to fix the position of the round pipe, and the assembly is completed.

[0053] Step 12: The position of the round pipe is adjusted according to the review point at the upper part of the round pipe, and the size in Figure 9 、 10 is taken as the basis.

[0054] Step 13: All the annotations on the drawing are reviewed again, and welding is performed after confirmation that there is no error.

[0055] As shown in Figure 12 , it is a schematic diagram of the use of portable gantry lifting group.

Claims

1. A method of assembling a spatial multi-curved pipe, characterized in that It includes the following steps: Step 1: first convert the multi-curved pipe to be assembled into a three-dimensional drawing; Step 2: set up a three-dimensional coordinate system, with the X-axis being the connecting line of the end of the multi-curved pipe, and the Y-axis being the vertical line perpendicular to the X-axis at the maximum arch height of the multi-curved pipe; Step 3: adjust the arch direction, with the ends flush and the arch direction uniform; Step 4: label the port positions of each pipe, and label the pipe port size in the XY plane; Step 5: set a reference line, and label the Z value at the port through the reference line; Step 6: set a review point on the upper part of the single-curved pipe; Step 7: mark the auxiliary contents such as the size of the through hole, the overall length of the component, and the single-curved rod number; Step 8: the multi-curved pipe is assembled in a horizontal manner, a cradle is set on the ground, and the cradle is leveled after completion; Step 9: set two end points of the multi-curved pipe, with the X-direction entity reference line being set, and the Y-direction data being used for measurement without setting an entity line; Step 10: measure the Z-direction through the level and the tower ruler, and measure the port vertex of the multi-curved pipe using the offset value of the reference line; Step 11: measure the size of each port and the reference line during the placement of the rod; a portable gantry support can be used for fine adjustment of the position of the rod, and after adjustment, a clamping plate is set on the cradle to fix the position of the pipe, and the assembly is completed; Step 12: adjust the position of the pipe according to the review point on the upper part of the pipe; Step 13: finally, recheck all the labels on the drawing, and after confirming that there is no error, perform welding; The portable gantry support includes an angle steel frame, a connecting lifting lug is arranged inside the top of the angle steel frame, the connecting lifting lug hoists the pipe through a hand-operated hoist, and a cradle is arranged at the lower part of the pipe.

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