Steel structure welding platform for large steel column and construction method of steel structure welding platform

Abstract

The invention relates to a steel structure welding platform for a large steel column and a construction method of the steel structure welding platform. The large steel column comprises two H-shaped steel columns, and a connecting plate is welded between webs of the two H-shaped steel columns; the welding platform comprises a first plug pin groove and a second plug pin groove. The supporting leg is inserted into the first bolt groove; the artificial platform is fixed to the tops of the supporting legs and comprises a bottom bearing plate and a fence, and the bottom bearing plate is composed of a left bottom plate, a right bottom plate and a complementation plate; the bosses of the left bottom plate and the right bottom plate abut against a web of the H-shaped steel column; the inner end of the completion plate abuts against the side wall of the connecting plate, a hanging lug is welded to the lower surface of the inner end and inserted into a second bolt groove, and the second bolt groove is fixedly connected with the side wall of the large steel column. According to the construction method, during use, the supporting legs are inserted into the first plug pin grooves so as to be fixed to the steel columns, and the weight of the manual platform is unloaded to the supporting legs; according to the scheme, mounting and dismounting are convenient, the working efficiency is improved, and the construction cost is saved.

Description

Technical Field

[0001] The invention belongs to the technical field of steel structure high-altitude construction platforms, and in particular relates to a steel structure welding platform for large steel columns. Background Art

[0002] Welding platforms are common in the field of factory steel structure construction, but the erection and disassembly of steel structure welding platforms during construction affects the construction progress.

[0003] In the metallurgical construction industry, steel structure factories are particularly common. The steel columns of steel structure factories are generally very large, especially the steel columns of high-rise factories. During construction, it is necessary to go to the site to install and splice the columns. The splicing and welding construction of the upper and lower columns of the steel columns is relatively difficult, the safety risk factor is high, and the one-time pass rate of the welds is low.

[0004] In order to ensure construction safety and construction efficiency, it is urgent to invent a convenient and safe welding platform. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the steel structure welding operation platform is difficult to install and disassemble, and is too dangerous.

[0006] The present invention solves the above-mentioned problem by adopting the following technical solution: A steel structure welding platform for a large steel column, the large steel column comprising two H-shaped steel columns, a connecting plate welded between the webs of the two H-shaped steel columns, the welding platform comprising: The first latch slot is made of channel steel and welded to the side surface of the large steel column; The support leg comprises a vertical support rod, a horizontal support rod and an oblique support rod, wherein the horizontal support rod is vertically welded to the upper end of the vertical support rod, and the other ends of the horizontal support rod and the vertical support rod are welded to the oblique support rod, and an anchor rod parallel to and integrally welded to the vertical support rod is also provided on the back side of the vertical support rod, and the anchor rod is inserted into the first latch groove; The artificial platform is fixed on the top of the horizontal support rod. The artificial platform includes a bottom support plate and a guardrail. The bottom support plate is composed of a left bottom plate, a right bottom plate and a supplementary plate. The left bottom plate and the right bottom plate are both placed on the top of the supporting legs, and their inner ends are provided with grooves corresponding to the left and right side wing plates of the large steel column, and a boss is provided between the two grooves, and the end of the boss abuts against the web of the H-shaped steel column; The supplementary plate has an outer shape that matches the cross-sectional shape of the front side or rear side of the large steel column. Its rear end is fixedly connected to the left bottom plate and the right bottom plate, and its two sides abut against the web side walls of the H-shaped steel column. The inner end abuts against the side wall of the connecting plate, and a hanging ear is welded on the lower surface of the inner end. The hanging ear is inserted into the second pin groove, and the second pin groove is fixedly connected to the side wall of the large steel column.

[0007] Compared with the prior art, the present invention adopting the above structure has the following beneficial effects: The material of the present invention is easily obtained during construction, and is simple to make and easy to operate; the solution is relatively convenient to install and disassemble, and can greatly improve work efficiency; the construction platform can be recycled, saving labor and machinery costs.

[0008] As a preferred embodiment, a further technical solution of the above structure is: Hinge shafts are arranged on two opposite sides of the guardrail, and the hinge shafts can be folded toward the center.

[0009] The vertical support rod is a long straight side, and the horizontal support rod is a short straight side.

[0010] The first latch slot is symmetrically arranged on the left side and the right side of the large steel column, and is symmetrically arranged on both sides.

[0011] In order to solve the above problems, the present invention also provides a construction method of the steel structure welding platform for large steel columns. The first step is to weld eight 100mm long channel steels on the parent material before the large steel column leaves the factory. Holes are formed between the channel steels and the surface of the large steel column, and the channel steels are welded and fixed according to the arrangement of the first latch groove and the second latch groove; The second step is to carry out anti-corrosion treatment on the channel steel; The third step is to weld the vertical support rod, the horizontal support rod and the oblique support rod into a right triangle. The horizontal support rod reserves a protruding end and welds the anchor rod. The distance between the anchor rod and the vertical support rod is equal to the wall thickness of the channel steel. The welding strength of the anchor rod and the horizontal support rod should be guaranteed. Step 4: insert and fix the anchor rod into the first latch groove to fix the support leg; Step 5: 1) The bosses of the left and right bottom plates extend into the grooves on the left or right sides of the large steel columns, the bosses are tightly in contact with the webs of the H-shaped steel columns, and then fall on the horizontal support rods; then the left bottom plate is connected to the end of the right bottom plate; 2) Tilt the supplementary plate, and then extend the supplementary plate into the groove on the front side or rear side of the large steel column, lay the supplementary plate flat, and then insert the inner end of the lug into the second latch groove, and fix the rear end of the supplementary plate to the left bottom plate and / or the right bottom plate; Step 6: Install guardrails outside the bottom plate; The seventh step is to weld and assemble the large steel columns. After the welding construction is completed, the artificial platform is lifted away by hoisting, and then the supporting legs are removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention on the side of a large steel column; Figure 2 It is a schematic diagram of the structure of the present invention on the left side of a large steel column; Figure 3 It is a stereogram of the present invention; Figure 4 It is an exploded view of the bottom bearing plate structure of the present invention; In the figure: 1. large steel column; 2. guardrail; 3. hinge shaft; 4. support leg; 41. horizontal support rod; 42. vertical support rod; 43. oblique support rod; 44. anchor rod; 5. first latch groove; 6. hanging ear; 7. second latch groove; 8. bottom supporting plate; 81. left bottom plate; 82. completion plate; 83. bolt hole plate; 84. boss. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0014] See also Figures 1 to 4 The present invention provides a steel structure welding platform for a large steel column, wherein the large steel column 1 comprises two H-shaped steel columns, a connecting plate is welded between the webs of the two H-shaped steel columns, and the welding platform comprises: The first latch slot 5 is made of channel steel and welded to the side surface of the large steel column 1; The support leg 4 includes a vertical support rod 42, a horizontal support rod 41 and an oblique support rod 43. The horizontal support rod 41 is vertically welded to the upper end of the vertical support rod 42. The other ends of the horizontal support rod 41 and the vertical support rod 42 are welded to the oblique support rod 43. The back side of the vertical support rod 42 is also provided with an anchor rod 44 which is parallel to the vertical support rod 42 and integrally welded and fixed thereto. The anchor rod 44 is inserted into the first latch groove 5. The artificial platform is fixed on the top of the horizontal support rod 41, and the artificial platform includes a bottom support plate 8 and a guardrail 2. The bottom support plate 8 is composed of a left bottom plate 81, a right bottom plate and a supplementary plate 82; The left bottom plate 81 and the right bottom plate are both placed on the top of the supporting leg 4, and their inner ends are provided with grooves corresponding to the left and right side wing plates of the large steel column 1, and a boss 84 is provided between the two grooves, and the end of the boss 84 abuts against the web of the H-shaped steel column; The supplementary plate 82 has an outer shape that matches the cross-sectional shape of the front side or rear side of the large steel column 1. Its rear end is fixedly connected to the left bottom plate 81 and the right bottom plate, and its two sides abut against the web side walls of the H-shaped steel column. The inner end abuts against the side wall of the connecting plate, and a hanging ear 6 is welded on the lower surface of the inner end. The hanging ear 6 is inserted into the second pin groove 7, and the second pin groove 7 is fixedly connected to the side wall of the large steel column 1.

[0015] As an option, hinge shafts 3 are provided on two opposite sides of the guardrail 2, and the hinge shafts 3 can be folded toward the center.

[0016] As an option, the vertical support rod 42 is a long straight edge, and the horizontal support rod 41 is a short straight edge.

[0017] As an option, the first latch slots 5 are symmetrically arranged on the left and right sides of each side surface of the large steel column 1 .

[0018] The present invention also provides a construction method for the steel structure welding platform for large steel columns, and the specific steps are as follows: In the first step, before the large steel column 1 leaves the factory, eight 100 mm long channel steels are welded on its parent material, holes are formed between the channel steels and the surface of the large steel column 1, and the channel steels are welded and fixed according to the arrangement of the first latch groove 5 and the second latch groove 7; The second step is to carry out anti-corrosion treatment on the channel steel; The third step is to weld the vertical support rod 42, the horizontal support rod 41 and the oblique support rod 43 into a right triangle, reserve a protruding end of the horizontal support rod 41 and weld the anchor rod 44, the distance between the anchor rod 44 and the vertical support rod 42 is equal to the wall thickness of the channel steel, and the welding strength of the anchor rod 44 and the horizontal support rod 41 should be ensured; Step 4: insert and fix the anchor rod 44 into the first latch groove 5, thereby fixing the support leg 4; Step 5: 1) The bosses 84 of the left bottom plate 81 and the right bottom plate extend into the grooves on the left or right side of the large steel column 1, and the bosses 84 are tightly abutted against the web of the H-shaped steel column, and then fall on the horizontal support rod 41; then the left bottom is connected to the end of the right bottom plate; 2) The supplementary plate 82 is tilted, and then the supplementary plate 82 is extended into the grooves on the front side or rear side of the large steel column 1, the supplementary plate 82 is laid flat, and then the inner end of the hanging ear 6 is inserted into the second latch groove 7, and the rear end of the supplementary plate 82 is fixed to the left bottom plate 81 and / or the right bottom plate; Step 6: Install the guardrail 2 outside the bottom support plate 8; The seventh step is to weld and assemble the large steel column 1. After the welding construction is completed, the artificial platform is lifted away by hoisting, and then the supporting legs 4 are removed.

[0019] The material of the present invention is easily available during construction, with low production cost, simple structure and easy operation; the construction platform of the present invention is fully matched with the surface of the steel column and has no leakage holes, thereby avoiding or reducing the risk of construction materials falling from high altitudes; the rear end of the completion plate 82 corresponds to the joint seam between the left bottom plate 81 and the right bottom plate, and a bolt hole plate 83 can be used for fixing, which can realize the fixation of the completion plate 82 on the one hand, and strengthen the connection strength between the left bottom plate 81 and the right bottom plate on the other hand; the present solution is relatively convenient to install and disassemble, and can greatly improve work efficiency; the present construction platform can be recycled, saving labor and machinery costs.

[0020] The above description is only a preferred feasible embodiment of the present invention, and does not limit the scope of rights of the present invention. All equivalent changes made using the contents of the present specification and its drawings are included in the scope of rights of the present invention.

Claims

1. A steel structure welding platform for a large steel column, the large steel column (1) comprising two H-shaped steel columns, a connecting plate welded between the webs of the two H-shaped steel columns, characterized in that: The welding platform comprises: The first latch groove (5) is made of grooved steel and welded to the side surface of the large steel column (1); The support leg (4) comprises a vertical support rod (42), a horizontal support rod (41) and an oblique support rod (43), wherein the upper ends of the horizontal support rod (41) and the vertical support rod (42) are vertically welded, and the other ends of the horizontal support rod (41) and the vertical support rod (42) are welded to the oblique support rod (43), and an anchor rod (44) parallel to and integrally welded to the vertical support rod (42) is also provided on the back side of the vertical support rod (42), and the anchor rod (44) is inserted into the first latch groove (5); An artificial platform is fixed to the top of the transverse support rod (41), the artificial platform comprises a bottom support plate (8) and a guardrail (2), the bottom support plate (8) comprises a left bottom plate (81), a right bottom plate and a supplementary plate (82); The left bottom plate (81) and the right bottom plate are both placed on the top of the supporting leg (4), and their inner ends are provided with grooves corresponding to the left and right side wing plates of the large steel column (1), and a boss (84) is provided between the two grooves, and the end of the boss (84) is in contact with the web of the H-shaped steel column; The supplementary plate (82) has an outer shape that matches the cross-sectional shape of the front side or rear side of the large steel column (1), a rear end of which is fixedly connected to the left bottom plate (81) and the right bottom plate, two sides of which abut against the side walls of the web of the H-shaped steel column, an inner end of which abuts against the side wall of the connecting plate, a hanging ear (6) is welded on the lower surface of the inner end, the hanging ear (6) is inserted into the second latch groove (7), and the second latch groove (7) is fixedly connected to the side wall of the large steel column (1).

2. The steel structure welding platform for large steel columns according to claim 1, characterized in that: Two opposite sides of the guardrail (2) are provided with hinge shafts (3), and the hinge shafts (3) can be folded towards the center.

3. The steel structure welding platform for large steel columns according to claim 1, characterized in that: The vertical support rod (42) is a long straight side, and the horizontal support rod (41) is a short straight side.

4. The steel structure welding platform for large steel columns according to claim 1, characterized in that: The first latch slot (5) is symmetrically arranged on the left side and the right side of the large steel column (1), and is symmetrically arranged on both sides.

5. The construction method of the steel structure welding platform for large steel columns according to claim 1, characterized in that: In the first step, before the large steel column (1) leaves the factory, eight 100 mm long channel steels are welded on the parent material thereof, holes are formed between the channel steels and the surface of the large steel column (1), and the channel steels are welded and fixed according to the arrangement of the first latch groove (5) and the second latch groove (7); The second step is to carry out anti-corrosion treatment on the channel steel; The third step is to weld the vertical support rod (42), the horizontal support rod (41) and the oblique support rod (43) into a right triangle, and the horizontal support rod (41) is reserved with a protruding end and welded with an anchor rod (44). The distance between the anchor rod (44) and the vertical support rod (42) is equal to the wall thickness of the channel steel, and the welding strength of the anchor rod (44) and the horizontal support rod (41) should be ensured; Step 4: insert and fix the anchor rod (44) into the first latch groove (5), thereby fixing the support leg (4); Step 5: a) the bosses (84) of the left bottom plate (81) and the right bottom plate are inserted into the grooves on the left side or right side of the large steel column (1), the bosses (84) are tightly abutted against the web of the H-shaped steel column, and then fall on the cross support rod (41); then the left bottom plate is connected to the end of the right bottom plate; b) the supplementary plate (82) is tilted, and then the supplementary plate (82) is inserted into the grooves on the front side or rear side of the large steel column (1), the supplementary plate (82) is laid flat, and then the inner end of the hanging ear (6) is inserted into the second latch groove (7), and the rear end of the supplementary plate (82) is fixed to the left bottom plate (81) and / or the right bottom plate; Step 6: Install the guardrail (2) outside the bottom support plate (8); The seventh step is to weld and assemble the large steel column (1). After the welding construction is completed, the artificial platform is lifted off by hoisting, and then the supporting legs (4) are removed.

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