Manufacturing and mounting method of arc-shaped adapter for curtain wall engineering

Abstract

The manufacturing method of the arc-shaped adapter for the curtain wall engineering is characterized by comprising the following steps of: 1, surveying and setting out; and 2, manufacturing the box-type arc-shaped adapter according to the surveying and setting out. According to the manufacturing and mounting method for the arc-shaped adapter for curtain wall engineering, firm connection is formed by the arc-shaped adapter, loads are effectively transmitted, the structural strength and stability requirements of a curtain wall under the action of self weight, wind loads, earthquakes and various external forces are met, safety and reliability of a curtain wall system are ensured, and the service life of the curtain wall system is prolonged. The arc-shaped adapting piece for the curtain wall has the advantages that the arc-shaped adapting piece for the curtain wall is accurate in shape adaptation, can better adapt to complex shapes such as an arc shape, is more concise and smoother in appearance, does not have obvious exposed connecting nodes, enhances the overall attractiveness of the curtain wall, and is beneficial to building a building curtain wall with a novel and attractive shape.

Description

Technical Field

[0001] The present invention belongs to the technical field of building construction and installation engineering. Specifically, it is a method for manufacturing and installing an arc-shaped adapter for curtain wall projects. Background Art

[0002] Generally, in large-space structure projects such as large exhibition halls, due to the need to form a certain facade effect, the structural design generally has various forms. For some designs, arc-shaped adapters are welded with steel structure round pipe materials. Generally, according to the measured data of positioning, they are drawn on the processing drawings of arc-shaped adapters, making it difficult to ensure the quality of the welded products of steel structure round pipe materials and arc-shaped adapters. Welding the curtain wall adapter once on the high-span steel structure round pipe has become a technical problem in the curtain wall engineering of this industry.

[0003] Therefore, how to manufacture an adapter that can perform dot measurement on the steel structure round pipe, position and take points in the connection area between the curtain wall connector and the steel structure round pipe; draw it on the processing drawings of the arc-shaped adapter according to the measured data of positioning, which can not only ensure the accuracy of positioning data during the welding process of the steel structure round pipe material and the arc-shaped adapter, but also meet the quality of the welded products of the steel structure round pipe material and the arc-shaped adapter has become an urgent problem to be solved in the project. Summary of the Invention

[0004] The purpose of the present invention is to provide a safe and reliable method for manufacturing and installing an arc-shaped adapter for curtain wall projects.

[0005] To achieve the above purpose, the technical solution of the present invention is: A method for manufacturing an arc-shaped adapter for curtain wall projects, which is characterized by including the following steps: The first step: Measuring and setting out Using total station and level measuring instruments, according to the curtain wall design drawings, accurately measure and mark the installation positions of the curtain wall arc-shaped adapters on the steel structure round pipe; for the round pipe, first determine several reference points on the surface of the round pipe, and then connect them with ink lines or marker pens to clarify the horizontal and vertical positions of the adapter; on the marked positions that have been set out, accurately paste stickers on the surface of the steel structure round pipe; The second step: Manufacturing a box-shaped arc-shaped adapter according to the measurement and setting out, including the following steps: a. Manufacturing the first steel plate Manufacture the first steel plate. The top side length of the first steel plate is 300 mm, the right-angle side length at one end of the top side is 382 mm, the right-angle side length at the other end is 536 mm, the connection length of the two right-angle side endpoints is 337 mm, and the arc is R307; b. Manufacturing the second steel plate Fabricate the second steel plate. The top side length of the second steel plate is 300 mm, the right-angle side length at one end of the top side is 217 mm, the right-angle side length at the other end is 532 mm, the connection length between the two right-angle side endpoints is 321 mm, and the arc is R306; c. Fabricate the third steel plate Fabricate the third steel plate. The top side length of the third steel plate is 176 mm, the right-angle side length at one end of the top side is 417 mm, the right-angle side length at the other end is 382 mm, the connection length between the two right-angle side endpoints is 179 mm; a groove with a length of 28 mm is provided at the center of the top side, the depth of the groove is 125 mm, the connection length between the two right-angle side endpoints is 321 mm, and the arc is R306; d. Fabricate the fourth steel plate Fabricate the fourth steel plate. The fourth steel plate is a rectangular plate with dimensions of 176×532 mm. A groove with a length of 28 mm is provided at the center of one short side of the rectangular plate, and the depth of the groove is 125 mm; e. Fabricate the fifth steel plate Fabricate two fifth steel plates. The fifth steel plate is a rectangular plate with dimensions of 74×276 mm. A groove with a length of 28 mm is provided at the center of one short side of the rectangular plate, and the depth of the groove is 125 mm; f. Box-shaped arc assembly and welding Use the two arc surfaces of the first steel plate and the second steel plate to cooperate as a corresponding wide surface of the box-shaped arc adapter. Use the two grooves of the third steel plate and the fourth steel plate to cooperate as another corresponding narrow surface of the box-shaped arc adapter. Assemble and weld them together to form a box with an arc notch. Then, assemble and weld the two fifth steel plates to the corresponding end faces of the arc notch to assemble a box-shaped arc adapter with an arc notch at one end and a groove at the other end. When the box-shaped arc adapter is in use, the arc notch is used for circumferential welding and fixing with the outer wall of the steel structure circular pipe, and the groove is used for inserting and welding and fixing with the joint of the curtain wall structural member.

[0006] The manufacturing method of the arc adapter for curtain wall projects of the present invention can also be further realized by adopting the following technical measures.

[0007] In the foregoing method, the thickness of all steel plates is ≥12 mm.

[0008] In the foregoing method, when the sticker is pasted, the sticker should be flat, without air bubbles or wrinkles, and the edge should be aligned with the marking line to clearly identify the welding area of the adapter.

[0009] In the foregoing method, the specification of the sticker is ≥50㎜×50㎜.

[0010] An installation method of an arc adapter for curtain wall projects, characterized by including the following steps: The first step: Treatment of the steel structure circular pipe base Use wire brushes and scraping tools to remove oil stains, dust, rust, and welding slag impurities on the surface of the round pipe to make the surface clean. Use a grinding wheel or sandpaper to polish the surface of the round pipe to increase the surface roughness; The second step: Spot welding of the arc-shaped adapter Spot welding should be evenly distributed at the connection edge of the arc-shaped adapter and the round pipe to ensure that the adapter fits tightly with the round pipe; During the spot welding operation, the arc striking should be accurate and the arc should be stably struck on the surface of the welded part; When stopping the arc, the crater should be filled to prevent the defect of crater crack; The third step: Measure the arc-shaped adapter again After the spot welding of the arc-shaped adapter is completed, use a total station to measure the arc-shaped adapter again to ensure that the steel arc-shaped adapter has not been displaced or tilted; The fourth step: Full welding of the arc-shaped adapter Before full welding of the arc-shaped adapter, it is necessary to confirm that the spot welding quality is qualified, the position of the arc-shaped adapter is accurate, and it is firmly fixed; During the welding process, the starting point of the weld needs to strike the arc smoothly, and the crater should be filled when stopping the arc to avoid crater cracks; The fifth step: Anti-corrosion and rust-proof treatment of the welding part Remove the welding slag on the surface of the on-site weld, re-polish it, and perform four anti-corrosion treatments: two coats of epoxy zinc-rich primer, one coat of epoxy mica iron intermediate paint, and one coat of silver topcoat; The sixth step: Substrate treatment of the adapter Crack treatment and roughening of the base surface of the arc-shaped adapter, and spraying of a sealing primer and a fluorocarbon metal topcoat.

[0011] The installation method of the arc-shaped adapter for curtain wall projects of the present invention can also be further realized by adopting the following technical measures.

[0012] In the foregoing method, the spot welding of the arc-shaped adapter adopts a symmetric spot welding method to reduce welding deformation.

[0013] In the foregoing method, when the full welding is multi-layer and multi-pass welding, the starting and stopping positions of each layer of weld should be staggered from each other.

[0014] In the foregoing method, the surface of the full weld should be smooth, without pores, slag inclusions, undercut, and incomplete penetration defects, and the weld size meets the design requirements, and the width and height are uniform.

[0015] After adopting the above technical solutions, the manufacturing and installation method of the arc-shaped adapter for curtain wall projects of the present invention has the following advantages: 1. The arc-shaped adapter forms a firm connection, effectively transmits the load, and meets the structural strength and stability requirements of the curtain wall under its own weight, wind load, earthquake, and various external forces; 2. Ensure the safety and reliability of the curtain wall system. The welding of the arc-shaped adapter for the curtain wall has an exact shape adaptation, better adapting to complex shapes such as arcs, with a more concise and smooth appearance, no obvious connection nodes exposed, enhancing the overall aesthetics of the curtain wall; 3. Contribute to creating a novel and beautiful building curtain wall. Description of the Drawings

[0016] Figure 1 Schematic diagram of the first steel plate structure of the arc-shaped adapter according to the embodiment of the present invention; Figure 2 Schematic diagram of the second steel plate structure of the arc-shaped adapter according to the embodiment of the present invention; Figure 3 Schematic diagram of the third steel plate structure of the arc-shaped adapter according to the embodiment of the present invention; Figure 4 Schematic diagram of the fourth steel plate structure of the arc-shaped adapter according to the embodiment of the present invention; Figure 5 Schematic diagram of the fifth steel plate structure of the arc-shaped adapter according to the embodiment of the present invention; Figure 6 Schematic diagram of the three-dimensional structure of the arc-shaped adapter according to the embodiment of the present invention. Detailed Embodiments

[0017] The present invention will be further described in detail below in conjunction with the embodiments and their accompanying drawings.

[0018] Embodiment 1 The method for manufacturing and installing the arc-shaped adapter for curtain wall projects of the present invention includes the following steps: The first step: Measuring and setting out Using total station and level measuring instruments, according to the curtain wall design drawings, accurately measure and mark the installation positions of the curtain wall arc-shaped adapters on the steel structure round tubes; for the round tubes, first determine several reference points on the surface of the round tubes, and then connect them with ink lines or marker pens to clarify the horizontal and vertical positions of the adapters; on the marked positions that have been set out, accurately paste the stickers on the surface of the steel structure round tubes; when pasting the stickers, make the stickers flat, without air bubbles or wrinkles, and the edges are aligned with the marked lines, clearly identifying the welding areas of the adapters. The specification of the stickers is 50 mm × 50 mm.

[0019] The second step: Now please refer to Figures 1-5 , and make the box-shaped arc-shaped adapter according to the measurement and setting out, including the following steps: a. Making the first steel plate Make the first steel plate. The top side length of the first steel plate 1 is 300 mm, the right-angled side length at one end of the top side is 382 mm, the right-angled side length at the other end is 536 mm, the connecting line length of the two right-angled side endpoints is 337 mm, and the arc is R307; b. Fabricate the second steel plate Fabricate the second steel plate. The top side length of the second steel plate 2 is 300 mm, the right-angled side length at one end of the top side is 217 mm, the right-angled side length at the other end is 532 mm, the connecting line length of the two right-angled side endpoints is 321 mm, and the arc is R306; c. Fabricate the third steel plate Fabricate the third steel plate. The top side length of the third steel plate 3 is 176 mm, the right-angled side length at one end of the top side is 417 mm, the right-angled side length at the other end is 382 mm, the connecting line length of the two right-angled side endpoints is 179 mm; there is a groove with a length of 28 mm at the center of the top side, the depth of the groove is 125 mm, the connecting line length of the two right-angled side endpoints is 321 mm, and the arc is R306;; d. Fabricate the fourth steel plate Fabricate the fourth steel plate. The fourth steel plate 4 is a rectangular plate with dimensions of 176×532 mm. There is a groove with a length of 28 mm at the center of one short side of the rectangular plate, and the depth of the groove is 125 mm; e. Fabricate the fifth steel plate Fabricate two fifth steel plates. The fifth steel plate 5 is a rectangular plate with dimensions of 74×276 mm. There is a groove with a length of 28 mm at the center of one short side of the rectangular plate, and the depth of the groove is 125 mm; f. Box-shaped arc assembly welding Figure 6 This is a schematic three-dimensional structure diagram of the arc-shaped adapter for the embodiment of the present invention. The two arc surfaces of the first steel plate and the second steel plate are matched as a corresponding wide surface of the box-shaped arc-shaped adapter. The two grooves of the third steel plate and the fourth steel plate are matched as another corresponding narrow surface of the box-shaped arc-shaped adapter. They are jointly assembled and welded into a box with an arc notch. Then, the two fifth steel plates are assembled and welded to the corresponding end faces of the arc notch to assemble a box-shaped arc-shaped adapter with an arc notch at one end and a groove at the other end. When the box-shaped arc-shaped adapter is used, the arc notch is used for circumferential welding and fixing with the outer wall of the steel structure circular pipe, and the groove is used for inserting and welding and fixing with the joint of the curtain wall structural member. The thickness of all steel plates is 16 mm.

[0020] The construction principle of the arc-shaped adapter for the curtain wall project of the present invention: Perform dot measurement on the steel structure circular pipe, and position and take points in the connection area between the curtain wall connector and the steel structure circular pipe; draw the measured data according to the positioning onto the processing drawing of the arc-shaped adapter, which can not only ensure the accuracy of the positioning data during the welding process between the steel structure circular pipe material and the arc-shaped adapter, but also meet the quality of the welded finished product of the steel structure circular pipe material and the arc-shaped adapter.

[0021] Embodiment 2 The installation method of the arc-shaped adapter for curtain wall engineering of the present invention. Using Example 1, a box-shaped arc-shaped adapter is fabricated according to the measurement and layout. The installation method includes the following steps: The first step: Treatment of the steel structure round pipe base Use wire brushes and shovels to remove oil stains, dust, rust, and welding slag impurities on the surface of the round pipe to make the surface clean. Use a grinding wheel or sandpaper to polish the surface of the round pipe to increase the surface roughness. The second step: Spot welding of the arc-shaped adapter Spot welding should be evenly distributed at the connection edge between the arc-shaped adapter and the round pipe to ensure that the adapter fits tightly with the round pipe. During the spot welding operation, the arc starting should be accurate and the arc should be stably started on the surface of the welded part. When finishing the arc, the arc crater should be filled to prevent the generation of arc crater crack defects. Spot welding should be at the connection edge between the adapter and the round pipe and be as evenly distributed as possible to ensure that the adapter fits tightly with the round pipe. Adopt the method of symmetric spot welding to reduce welding deformation. The third step: Measuring the arc-shaped adapter again After the spot welding of the arc-shaped adapter is completed, use a total station to measure the arc-shaped adapter again to ensure that the steel arc-shaped adapter has not been displaced or tilted.

[0022] The fourth step: Full welding of the arc-shaped adapter Before the full welding of the arc-shaped adapter, it is necessary to confirm that the quality of the spot welding is qualified, the position of the adapter is accurate and firmly fixed. During the welding process, the starting of the weld should be smooth, and the arc crater should be filled when finishing the arc to avoid the occurrence of arc crater cracks. When performing multi-layer and multi-pass welding, the starting and finishing positions of each layer of weld should be staggered from each other. The surface of the weld should be smooth, without defects such as pores, slag inclusions, undercut, and incomplete penetration. The weld size should meet the design requirements, and the width and height should be uniform.

[0023] The fifth step: Anti-corrosion and rust-proof treatment of the welding part Remove the welding slag on the surface of the on-site weld, and re-polish (or use a wire brush to scrub) until the bottom surface is stable. Four anti-corrosion treatments: two coats of epoxy zinc-rich primer (dry film zinc content ≥ 80%) + one coat of epoxy mica iron intermediate paint + one coat of silver topcoat. The total thickness should not be less than 150μm. The welding quality grade of the on-site weld is grade three, with a continuous weld, and the weld leg height is the same as the thickness of the thinner wall base material.

[0024] The sixth step: Treatment of the arc-shaped adapter base Crack treatment and roughening of the base surface of the arc-shaped adapter. The specific operation follows the operation procedure: applying elastic putty → base surface leveling (special finished dry powder putty) → coarse putty → fine putty → polishing putty construction → grinding (curing) → protecting the steel structure round pipe fireproof coating with a protective film → spraying a primer sealant → spraying fluorocarbon metal topcoat → repairing → cleaning.

[0025] The present invention has substantial features and remarkable technical progress. The manufacturing and installation method of the arc-shaped adapter for curtain wall projects of the present invention enables the welding of steel structure round pipe materials and curtain wall arc-shaped adapters to have good structural performance. The welding can form a firm connection between the steel structure round pipe and the curtain wall arc-shaped adapter, effectively transmit loads, and meet the structural strength and stability requirements of the curtain wall under various external forces such as self-weight, wind load, and seismic action, ensuring the safety and reliability of the curtain wall system. The welding of the curtain wall arc-shaped adapter has precise shape adaptation: it can better adapt to complex shapes such as arcs, is more concise and smooth in appearance, has no obvious connection nodes exposed, enhances the overall aesthetics of the curtain wall, better reflects the simple and grand style pursued by modern architecture, realizes the unique appearance effect required by architectural design, and helps to create a novel and beautiful building curtain wall.

[0026] The manufacturing and installation method of the arc-shaped adapter for curtain wall projects of the present invention has been actually applied to the steel structure round pipes of Buildings 3# - 10# in the Guangzhou Convention and Exhibition Center project. It is simple to construct, easy to operate, and firmly installed, with sufficient strength, stiffness, and stability, good appearance quality, wide application range, easy to master, and easy to promote and use. It has been unanimously recognized by the supervision unit and the construction unit, welcomed by the operators, and achieved good economic benefits and social impacts.

[0027] The above embodiments are only for illustrating the present invention, rather than limiting the present invention. Those skilled in the relevant technical fields can also make various transformations or changes without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the scope of the present invention and should be defined by each claim.

Claims

1. A manufacturing method for an arc-shaped adapter in curtain wall engineering, characterized in that It includes the following steps: The first step: Measuring and setting out Using total station and level measuring instruments, according to the curtain wall design drawings, accurately measure and mark the installation positions of the curtain wall adapter pieces on the steel structure round pipes; for the round pipes, first determine several reference points on the surface of the round pipes, and then connect them with ink lines or marker pens to clarify the horizontal and vertical positions of the adapter pieces; Accurately paste the stickers on the surface of the steel structure round pipes at the positions where the lines have been set out and marked; The second step: Manufacturing the box-shaped arc-shaped adapter piece, including the following steps: a. Manufacturing the first steel plate Manufacture the first steel plate. The top side length of the first steel plate is 300 mm, the right-angled side length at one end of the top side is 382 mm, the right-angled side length at the other end of the top side is 536 mm, the connection length of the two right-angled side endpoints is 337 mm, and the arc is R307; b. Manufacturing the second steel plate Manufacture the second steel plate. The top side length of the second steel plate is 300 mm, the right-angled side length at one end of the top side is 217 mm, the right-angled side length at the other end of the top side is 532 mm, the connection length of the two right-angled side endpoints is 321 mm, and the arc is R306; c. Manufacturing the third steel plate Manufacture the third steel plate. The top side length of the third steel plate is 176 mm, the right-angled side length at one end of the top side is 417 mm, the right-angled side length at the other end of the top side is 382 mm, the connection length of the two right-angled side endpoints is 179 mm; there is a groove with a length of 28 mm in the center of the top side, the depth of the groove is 125 mm, the connection length of the two right-angled side endpoints is 321 mm, and the arc is R306;; d. Manufacturing the fourth steel plate Manufacture the fourth steel plate. The fourth steel plate is a rectangular plate with dimensions of 176×532 mm. There is a groove with a length of 28 mm in the center of one short side of the rectangular plate, and the depth of the groove is 125 mm; e. Manufacturing the fifth steel plate Manufacture two fifth steel plates. The fifth steel plate is a rectangular plate with dimensions of 74×276 mm. There is a groove with a length of 28 mm in the center of one short side of the rectangular plate, and the depth of the groove is 125 mm; f. Assembly and welding Use the two arc surfaces of the first steel plate and the second steel plate as a corresponding wide surface of the box-shaped arc-shaped adapter piece, and use the two grooves of the third steel plate and the fourth steel plate as another corresponding narrow surface of the box-shaped arc-shaped adapter piece. Assemble and weld them together to form a box with an arc notch, and then assemble and weld the two fifth steel plates to the corresponding end faces of the arc notch to assemble a box-shaped arc-shaped adapter piece with an arc notch at one end and a groove at the other end. When the box-shaped arc-shaped adapter piece is used, the arc notch is used for circumferential welding and fixing with the outer wall of the steel structure round pipe, and the groove is used for inserting and welding and fixing with the joint of the curtain wall structural member.

2. The manufacturing method of the arc-shaped adapter for curtain wall engineering according to claim 1, characterized in that The thickness of all steel plates is ≥12 mm.

3. The manufacturing method of the arc-shaped adapter for curtain wall projects according to claim 1, characterized in that, When pasting the stickers, the stickers should be flat, without air bubbles or wrinkles, and the edges should be aligned with the marked lines to clearly identify the welding area of the adapter piece.

4. The manufacturing method of the arc-shaped adapter for curtain wall engineering according to claim 1, characterized in that The specification of the stickers is ≥50㎜×50㎜.

5. A method for installing an arc-shaped adapter for curtain wall engineering as described in claim 1, characterized in that It includes the following steps: The first step: Treatment of the steel structure round pipe base Use wire brushes and scrapers to remove oil stains, dust, rust, and welding slag impurities on the surface of the round pipe to make the surface clean. Use a grinding wheel or sandpaper to polish the surface of the round pipe to increase the surface roughness; The second step: Spot welding of the arc-shaped adapter piece Spot welding shall be evenly distributed at the connecting edge of the arc-shaped adapter and the round pipe to ensure close fitting between the adapter and the round pipe; during the spot welding operation, the arc starting shall be accurate and the arc shall be stably started on the surface of the welded part; when stopping the arc, the arc crater shall be filled to prevent the generation of arc crater crack defects; Third step: Measure the arc-shaped adapter again After the spot welding of the arc-shaped adapter is completed, use a total station to measure the arc-shaped adapter again to ensure that the steel arc-shaped adapter has not been displaced or tilted; Fourth step: Full welding of the arc-shaped adapter Before full welding of the arc-shaped adapter, it is necessary to confirm that the quality of the spot welding is qualified, the position of the arc-shaped adapter is accurate, and it is firmly fixed; during the welding process, the starting point of the weld shall start smoothly, and the arc crater shall be filled when stopping the arc to avoid arc crater cracks; Fifth step: Anti-corrosion and rust-proof treatment of the welded part Remove the welding slag from the surface of the on-site weld, re-grind it, and perform four anti-corrosion treatments: two coats of epoxy zinc-rich primer, one coat of epoxy mica iron intermediate paint, and one coat of silver topcoat; Sixth step: Substrate treatment of the adapter Crack treatment and roughening of the base surface of the arc-shaped adapter, and spray the sealant primer and fluorocarbon metal topcoat.

6. The installation method of the arc-shaped adapter for curtain wall projects as described in claim 5, characterized in that, The spot welding of the arc-shaped adapter adopts the method of symmetric spot welding to reduce welding deformation.

7. The installation method of the arc-shaped adapter for curtain wall projects according to claim 5, characterized in that, When the full welding is multi-layer and multi-pass welding, the starting and stopping positions of each layer of weld shall be staggered from each other.

8. The installation method of the arc-shaped adapter for curtain wall projects as described in claim 5, characterized in that, The surface of the full-welded seam shall be smooth, without pores, slag inclusions, undercutting, and incomplete penetration defects, and the weld size shall meet the design requirements, with uniform width and height.

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