CN111535596A - Assembling method of circular truncated cone structure - Google Patents
Assembling method of circular truncated cone structure Download PDFInfo
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- CN111535596A CN111535596A CN202010424316.9A CN202010424316A CN111535596A CN 111535596 A CN111535596 A CN 111535596A CN 202010424316 A CN202010424316 A CN 202010424316A CN 111535596 A CN111535596 A CN 111535596A
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- truss
- assembling
- main truss
- upper frame
- limiting plates
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to the technical field of building construction, in particular to an assembling method of a round platform type structure, which comprises a central tower body and a ring-shaped pre-assembled jig frame, wherein a jack group is arranged at the top of the central tower body, the pre-assembled jig frame is composed of a plurality of jig frame units arranged at intervals along the circumferential direction, rolling shafts rolling along the circumferential direction are arranged on the jig frame units, and limit structures are arranged on the rolling shafts, so that when a main truss is installed in the subsequent process, the fine height of an upper frame structure can be adjusted through the jack group, the installation position of a truss base of the main truss is adjusted through the rolling shafts and the limit structures, the gap of the main truss can be adjusted integrally, and an auxiliary truss and a cross brace are bulk-packed at high altitude, so that the assembling precision of the round platform type structure can be improved.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to an assembling method of a circular truncated cone structure.
Background
The circular truncated cone type space structure is widely used in industrial buildings, and is generally formed by a truss structure when used as a top cover of a silo, a roof of a warehouse and the like. The circular truncated cone structure has the advantages that the number of components in the circular truncated cone structure is large, the connecting parts are connected through end flanges, the number of connecting surfaces is large, the precision requirement is high, and in the relevant standards of national standards and European standards, strict requirements are imposed on the gaps of the connecting surfaces. The installation of the main truss in the truss is that the fit surface gap is difficult to adjust, and the installation precision of the cross brace between the main trusses is influenced. Because the size of the component is large and the form is heavy, the whole adjustment is not easy, and the whole quality is influenced;
when the existing main truss is assembled, the top of the main truss is connected with an upper frame structure of a circular truncated cone through a flange, the bottom of the main truss is connected with a lower support of the circular truncated cone through the flange, the gap of the connecting surface needs to be tightly attached in 70% of the area, and the gap of the edge part is allowed to exist and is not more than 0.5 mm. In the assembly process, the connection node between the upper frame structure and the main truss and the connection between the main truss and the lower support of the circular truncated cone are required to be carefully adjusted to achieve the required gap.
Disclosure of Invention
Aiming at the existing problems, the invention discloses an assembling method of a round platform type structure, wherein the round platform type structure comprises an upper frame structure, a main truss, an auxiliary truss and a cross brace, and a truss base is arranged at the bottom of the main truss; wherein the method comprises the following steps:
step S1, a central tower frame and a pre-assembled jig frame are arranged on an installation site, a jack groove is formed in the top of the central tower frame, a plurality of groups of jacks are uniformly arranged in the jack groove, the pre-assembled jig frame is in a circular ring shape, the pre-assembled jig frame is composed of a plurality of jig frame units arranged at intervals along the circumferential direction, rolling shafts rolling along the circumferential direction are arranged on the jig frame units, and a limiting structure is arranged on the rolling shafts;
step S2 of providing a plurality of box beams constituting the upper frame structure, and assembling the plurality of box beams constituting the upper frame structure into the upper frame structure on an installation site, and uniformly providing a plurality of main truss joints on an outer side of the upper frame structure;
step S3, hoisting the upper frame structure to the central tower such that the plurality of main truss joints and the plurality of jig frame units correspond one-to-one;
step S4, mounting the top of the main truss on the main truss joint, disposing the truss base of the main truss on the jig unit, adjusting the elevation of the upper frame structure by the jack, and adjusting the mounting position of the main truss base by the jig unit;
step S5, mounting the auxiliary truss and the wale on the main truss.
In the assembling method of the circular truncated cone-shaped structure, in the step S1, the top elevation of the center tower is 6-10 mm lower than the theoretical elevation.
In the assembling method of the circular truncated cone type structure, after the upper frame structure is hoisted to the central tower, the step S3 further includes a step of finely adjusting the elevation of the upper frame structure by using the jack so that the elevation of the upper frame structure reaches a theoretical elevation.
In the assembling method of the truncated cone-shaped structure, in step S5, the auxiliary truss and the wales are mounted on the main truss by using a high altitude assembling method.
In the assembling method of the circular truncated cone structure, each jig frame unit comprises a bottom bracket, and each bottom bracket is provided with a rectangular frame and a plurality of side-by-side rolling shafts;
the rectangular frame is fixed on the bottom bracket and is surrounded by 2 first limiting plates and 2 second limiting plates, and the 2 first limiting plates are arranged along the diameter direction of the pre-assembled jig frame;
the rolling shafts are parallel to the first limiting plate and are rotatably arranged on the lower portion of the rectangular frame, the truss base is arranged on the rolling shafts and located in the rectangular frame, the number of the truss base is 2, bolts are arranged on the first limiting plate in a penetrating mode to serve as limiting structures, and the bolts are located on the rolling shafts.
In the assembling method of the round platform structure, the value range of the difference between the interval between the 2 first limiting plates and the width of the truss base is 30-50 mm;
the value range of the difference between the distance between the 2 second limiting plates and the length of the truss base is 30-50 mm.
In the assembling method of the truncated cone-shaped structure, the rolling shaft is made of round steel.
In the assembling method of the truncated cone-shaped structure, 2 of the second limiting plates are provided with holes for the rolling shafts to pass through, corresponding to the plurality of rolling shafts in parallel;
two ends of the rolling shaft are respectively arranged in the 2 second limiting plates in a penetrating mode through the holes.
In the assembling method of the round platform type structure, nuts are fixedly arranged on the outer surfaces of the 2 first limiting plates, and the screw rods of the bolts sequentially penetrate through the nuts and the first limiting plates and are arranged in the rectangular frame.
The assembling method of the circular truncated cone structure is characterized in that the circular truncated cone structure is applied to a silo top cover or a warehouse top cover.
The invention has the following advantages or beneficial effects:
the invention discloses an assembling method of a round platform type structure, which is characterized in that a central tower body with a jack group arranged at the top and a ring-shaped pre-assembled jig frame are arranged in an installation site, the pre-assembled jig frame consists of a plurality of jig frame units arranged at intervals along the circumferential direction, a rolling shaft rolling along the circumferential direction is arranged on each jig frame unit, and a limiting structure is arranged on each rolling shaft, so that when a main truss is installed in the subsequent process, the fine height of an upper frame structure can be adjusted through the jack group, the installation position of a truss base of the main truss is adjusted through the jig frame units, the gap of the main truss can be adjusted integrally, and an auxiliary truss and a cross brace are arranged in bulk at high altitude, so that the assembling precision of the round platform type structure can be improved.
Drawings
The invention and its features, aspects and advantages will become more apparent from reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention.
FIG. 1 is a flow chart of a method for assembling a truncated cone-shaped structure according to an embodiment of the present invention;
FIG. 2 is a top view of a truncated cone-shaped structure in an embodiment of the invention;
FIG. 3 is a top view of a jig frame unit in an embodiment of the invention;
FIG. 4 is a cross-sectional view of a jig frame unit in an embodiment of the invention;
FIG. 5 is a top view of an upper frame structure installation in accordance with an embodiment of the present invention;
FIG. 6 is a top view of a primary truss installation in accordance with an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of 2 oppositely disposed primary trusses of a truncated cone type structure in an embodiment of the present invention;
fig. 8 is a schematic structural view illustrating a truss base of the main truss is arranged on the jig frame unit according to an embodiment of the present invention;
fig. 9 is an enlarged schematic view of a portion of the jig frame unit in fig. 8.
Detailed Description
The present invention will be further described with reference to the following drawings and specific examples, but the present invention is not limited thereto.
As shown in fig. 1, the invention discloses an assembling method of a round platform type structure, as shown in fig. 2, the round platform type structure comprises an upper frame structure 4, a main truss 1, an auxiliary truss 2 and a cross brace 3, and a truss base 11 is arranged at the bottom of the main truss 1; specifically, the method comprises the following steps:
step S1, a central tower frame 6 and a pre-assembled jig frame are arranged on an installation site, a jack groove is formed in the top of the central tower frame 6, 8 groups of jacks are uniformly arranged in the jack groove, the pre-assembled jig frame is in a circular ring shape, the central tower frame 6 is arranged at the central position of the circular ring-shaped pre-assembled jig frame, the pre-assembled jig frame is composed of a plurality of jig frame units 5 arranged at intervals along the circumferential direction, rolling shafts 53 rolling along the circumferential direction are arranged on the jig frame units 5, and limit structures are arranged on the rolling shafts 53.
Specifically, the top elevation of the central tower 6 is 6-10 mm (for example, 6mm, 7mm, 8mm, or 10 mm) lower than the theoretical elevation.
Specifically, as shown in fig. 3 and 4, each jig frame unit 5 includes a bottom bracket 51, and each bottom bracket 51 is provided with a rectangular frame 52 and a plurality of side-by-side rolling shafts 53; the rectangular frame 52 is fixed on the bottom bracket 51, the rectangular frame 52 is surrounded by 2 first limiting plates 521 and 2 second limiting plates 523 (the 2 first limiting plates 521 and the 2 second limiting plates 523 can be connected or not connected), the 2 first limiting plates 521 are all arranged along the diameter direction of the pre-assembled jig frame, and correspondingly, the 2 second limiting plates 523 are inevitably arranged along the circumferential tangential direction of the pre-assembled jig frame; the plurality of rolling shafts 53 are all arranged at the lower part of the rectangular frame 52 in parallel to the first limiting plate 521 (that is, the rolling shafts 53 are parallel to the diameter direction of the pre-assembled jig frame, and the rolling direction thereof necessarily faces the circumferential direction of the pre-assembled jig frame), the truss base 11 is arranged on the plurality of rolling shafts 53 and is located in the rectangular frame 52, and 2 bolts 54 (for example, 2 bolts 54) are arranged on the first limiting plate 521 in a penetrating manner to serve as a limiting structure, and the bolts 54 are located on the rolling shafts 53 to limit the truss base 11 when the truss base 11 is adjusted to a proper position; by adjusting the bolts 54, the truss base 11 can roll on the rolling shafts 53, so that the sliding of millimeter level can be realized.
The value range of the difference between the distance between the 2 first limiting plates 521 and the width of the truss base 11 is 30-50 mm (for example, 30mm, 40mm, 45mm, or 50 mm), so that the truss base 11 can be finely adjusted conveniently, and the truss base 11 cannot be displaced too much in the circumferential direction of the pre-assembled jig; the value range of the difference between the distance between the 2 second limiting plates 523 and the length of the truss base 11 is 30-50 mm, so that the truss base 11 is placed in the existing direction, and the truss base 11 cannot be displaced too much in the diameter direction of the pre-assembled jig frame. The rolling shaft 53 is made of round steel, so that the bearing capacity is high, and the cost is low; for example phi 40 round steel. The 2 second limiting plates 523 are provided with holes corresponding to the plurality of rolling shafts 53 in parallel, through which the rolling shafts 53 pass; two ends of the rolling shaft 53 are respectively penetrated in the 2 second limiting plates 523 through the hole, so that the rolling shaft 53 is convenient to mount and dismount. The diameter of the rolling shaft 53 is 38-48 mm, and the diameter of the hole is 40-50 mm, so that the rolling shaft 53 is convenient to mount. Nuts are fixedly arranged on the outer surfaces of the 2 first limiting plates 521, and screws of the bolts 54 sequentially penetrate through the nuts and the first limiting plates 521 and are arranged in the rectangular frame 52, so that fine adjustment of the bolts 54 can be realized without arranging threads on holes of the first limiting plates 521, and the manufacturing cost is reduced; specifically, the bolts 54 are conventional 4.8 grade M36 bolts 54. The first and second limiting plates 521, 523 are made of steel plates and have equal thicknesses, for example, 25 mm.
Step S2, 16 box beams 41 constituting the upper frame structure 4 are provided, and the 16 box beams 41 constituting the upper frame structure 4 are assembled to form the upper frame structure 4 on the installation site, and 16 main truss joints 42 are uniformly provided on the outer side of the upper frame structure 4 (for example, a main truss joint 42 is provided on each box beam 41).
Specifically, the upper frame structure 4 is assembled by radial consolidation of the 16 main truss joints to ensure that the angle of each main truss joint is correct in the circumferential direction.
Step S3, as shown in fig. 5, hoists the upper frame structure 4 to the central tower 6, and makes the plurality of main truss joints 42 and the plurality of jig frame units 5 correspond one-to-one.
In a preferred embodiment of the present invention, in step S3, the upper frame structure 4 is first hoisted and placed on the central tower 6, the main truss joints 42 are aligned with the radial lines of the central tower, and the jig units 5 are aligned so that the plurality of main truss joints 42 and the plurality of jig units 5 correspond to each other one by one, and at this time, the actual elevation of the main truss joints 42 is about 5mm lower than the theoretical value, and 8 sets of jacks are respectively adjusted to reach the theoretical level. During the subsequent installation of the main truss 1, if the height difference is met, the fine adjustment of the jack is continuously carried out.
Step S4, as shown in fig. 6 to 9, the top of the main truss 1 is mounted on the main truss joint 42, the truss base 11 of the main truss 1 is set on the rolling shaft 53, the elevation of the upper frame structure 4 is adjusted by the jack, and the mounting position of the main truss base 11 is adjusted by the jig frame unit 5.
Specifically, the main truss 1 is installed (the main truss 1 is assembled into a whole on the ground in advance, the main truss 1 is hoisted to the installation position), and the top of the main truss 1 is connected with the upper frame structure 4 through the bolts 54 without being tightened. Then, the truss base 11 is placed on the jig frame unit 5 of the pre-assembled jig frame, and the truss base 11 is adjusted through the jig frame unit 5 so that the truss base 11 swings in the original position along the circumferential direction, so that the gap of the main truss 1 is adjusted to be optimal as a whole.
Specifically, when the main truss 1 is installed, the main truss units (two main trusses and all the intermediate members) are assembled on the ground, and eight main truss units are formed in total. And the eight main truss units are respectively installed. The upper part is connected with the main truss joint 42, the elevation is adjusted through the jack group, and then the installation position of the truss base 11 is adjusted by using the jig unit 5.
Step S5, the auxiliary truss 2 and the wale 3 are installed on the main truss 1, and the auxiliary truss 2 and the wale 3 are specifically installed on the main truss 1 by using a high altitude bulk method.
Specifically, beams which are scattered in bulk at high altitude and are arranged in the circumferential direction are adopted, only one connecting flange at one end is welded during processing, the other end is spot-welded, adjustment can be carried out during assembly, and members with gaps exceeding the standard need to be replaced. And after the whole is installed in place, carrying out whole measurement and inspection, and starting whole adjustment. And after the overall size and the gap control reach the optimal value, tightening the bolt and welding.
In the method, the central tower 6 is built by adopting a common Q355 material. The jack specifications may be selected according to the weight of the upper frame structure 4.
Those skilled in the art will appreciate that variations may be implemented by those skilled in the art in combination with the prior art and the above-described embodiments, and will not be described herein in detail. Such variations do not affect the essence of the present invention and are not described herein.
The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments to equivalent variations, without departing from the spirit of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (10)
1. A method for assembling a round platform type structure comprises an upper frame structure, a main truss, an auxiliary truss and a cross brace, wherein a truss base is arranged at the bottom of the main truss; characterized in that the method comprises the following steps:
step S1, a central tower frame and a pre-assembled jig frame are arranged on an installation site, a jack groove is formed in the top of the central tower frame, a plurality of groups of jacks are uniformly arranged in the jack groove, the pre-assembled jig frame is in a circular ring shape, the pre-assembled jig frame is composed of a plurality of jig frame units arranged at intervals along the circumferential direction, rolling shafts rolling along the circumferential direction are arranged on the jig frame units, and a limiting structure is arranged on the rolling shafts;
step S2 of providing a plurality of box beams constituting the upper frame structure, and assembling the plurality of box beams constituting the upper frame structure into the upper frame structure on an installation site, and uniformly providing a plurality of main truss joints on an outer side of the upper frame structure;
step S3, hoisting the upper frame structure to the central tower such that the plurality of main truss joints and the plurality of jig frame units correspond one-to-one;
step S4, mounting the top of the main truss on the main truss joint, disposing the truss base of the main truss on the jig unit, adjusting the elevation of the upper frame structure by the jack, and adjusting the mounting position of the main truss base by the jig unit;
step S5, mounting the auxiliary truss and the wale on the main truss.
2. The method for assembling a truncated cone shaped structure according to claim 1, wherein in the step S1, the top elevation of the center tower is 6-10 mm lower than the theoretical elevation.
3. The method of assembling a truncated cone type structure according to claim 1, wherein, after the upper frame structure is hoisted to the center tower, the step S3 further includes a step of finely adjusting an elevation of the upper frame structure using the jack so that the elevation of the upper frame structure reaches a theoretical elevation.
4. The method of assembling a truncated cone type structure according to claim 1, wherein in the step S5, the auxiliary girder and the wales are installed on the main girder by a high altitude scattering method.
5. A method of assembling a truncated cone shaped structure as claimed in claim 1, wherein each of said jig frame units includes a bottom bracket, and each of said bottom brackets is provided with a rectangular frame and a plurality of rolling shafts arranged side by side;
the rectangular frame is fixed on the bottom bracket and is surrounded by 2 first limiting plates and 2 second limiting plates, and the 2 first limiting plates are arranged along the diameter direction of the pre-assembled jig frame;
the rolling shafts are parallel to the first limiting plate and are rotatably arranged on the lower portion of the rectangular frame, the truss base is arranged on the rolling shafts and located in the rectangular frame, the number of the truss base is 2, bolts are arranged on the first limiting plate in a penetrating mode to serve as limiting structures, and the bolts are located on the rolling shafts.
6. An assembling method of a truncated cone shaped structure according to claim 5, wherein the difference between the distance between 2 first limiting plates and the width of the truss base ranges from 30 to 50 mm;
the value range of the difference between the distance between the 2 second limiting plates and the length of the truss base is 30-50 mm.
7. A method of assembling a frustoconically shaped structure according to claim 5, wherein the rolling axis is round steel.
8. The assembling method of the circular truncated cone-shaped structure according to claim 5, wherein 2 second limiting plates are provided with holes for the rolling shafts to pass through, in parallel with respect to the plurality of rolling shafts;
two ends of the rolling shaft are respectively arranged in the 2 second limiting plates in a penetrating mode through the holes.
9. The assembling method of the round platform type structure according to claim 5, wherein nuts are fixedly arranged on the outer surfaces of the 2 first limiting plates, and screws of the bolts sequentially penetrate through the nuts and the first limiting plates to be arranged in the rectangular frame.
10. A method of assembling a frustroconical structure as described in claim 1, wherein said frustroconical structure is applied to a silo roof or a warehouse roof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010424316.9A CN111535596A (en) | 2020-05-19 | 2020-05-19 | Assembling method of circular truncated cone structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010424316.9A CN111535596A (en) | 2020-05-19 | 2020-05-19 | Assembling method of circular truncated cone structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111535596A true CN111535596A (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010424316.9A Pending CN111535596A (en) | 2020-05-19 | 2020-05-19 | Assembling method of circular truncated cone structure |
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| Country | Link |
|---|---|
| CN (1) | CN111535596A (en) |
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2020
- 2020-05-19 CN CN202010424316.9A patent/CN111535596A/en active Pending
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