CN108952207A - A kind of layer reinforced structure and increasing layer method of steel building - Google Patents
A kind of layer reinforced structure and increasing layer method of steel building Download PDFInfo
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- CN108952207A CN108952207A CN201811112371.3A CN201811112371A CN108952207A CN 108952207 A CN108952207 A CN 108952207A CN 201811112371 A CN201811112371 A CN 201811112371A CN 108952207 A CN108952207 A CN 108952207A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 220
- 239000010959 steel Substances 0.000 title claims abstract description 220
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000010276 construction Methods 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 12
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
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- 230000005012 migration Effects 0.000 description 1
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- 239000011378 shotcrete Substances 0.000 description 1
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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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0266—Enlarging
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Abstract
The present invention provides a kind of layer reinforced structure of steel building and increasing layer methods, belong to the realm of building construction.The layer reinforced structure of steel building of the invention includes pipe support column, support member, lifting column, lifting beam, electric block, steel roof truss, steel scale bar, steel column.The support member is fixed on pipe support column top, and one end of two lifting columns is respectively welded at support member top surface, and the other end is each passed through the top surface of steel roof truss and welds with the both ends of lifting beam.Lifting column of the invention and column are coaxial, the upper end of lifting column passes through the hole passed through on roofing for it, lifting column plays position-limiting action to roofing when promotion, so that the accuracy for promoting operation is high, subsequent newly-increased column is facilitated to be aligned, install, a large amount of labour cost and mechanical stage student contributions pooled to pay for class activities can be saved simultaneously, is accelerated construction progress, working security is improved.
Description
Technical Field
The invention belongs to the field of building construction, and particularly relates to a storey-adding structure and a storey-adding method of a steel structure building.
Background
In the common energy expanding transformation project, the pipe frame in the original pipe gallery is fully paved with process pipelines, and the pipelines increased after the energy expanding transformation are laid in the original pipe gallery without positions. Therefore, the original pipe frame needs to be increased by one layer, and the increased process pipeline after the energy expansion transformation is arranged on the increased layer height. However, in steel construction building, original piping lane top has set up steel construction roofing system, and this just needs to demolish the steel construction roofing at piping lane top earlier, then risees the pipe support again, waits to resume the steel construction roofing after the pipe support risees again. Generally, the construction steps adopted for the lifting of the pipe gallery are as follows: demolish roofing tile, demolish steel purlin, demolish steel shotcrete and steel roof truss, install the steel column and the girder steel that increase (the one deck that the pipe support increases promptly) on former pipe frame column head, resume installation steel roof truss and roof truss support, resume installation steel purlin, resume installation tile roofing.
This conventional construction method requires a large site for stacking the disassembled steel structures, may cause damage to some components during the disassembly, and requires a long construction period and a large expenditure of labor and crane platform expenses.
Disclosure of Invention
The invention aims to provide a floor-adding structure of a steel structure building and a floor-adding method, which do not need to be dismantled and can be integrally lifted.
The storey-adding structure of the steel structure building comprises pipe frame columns, supporting parts, lifting columns, lifting beams, electric hoists, steel roof trusses, steel scale rods and steel columns, wherein the supporting parts are fixed at the tops of the pipe frame columns; wherein,
when the top of the pipe frame column is not provided with a longitudinal pipe frame beam, the supporting component comprises front and rear hoop plates, side hoop plates, bolts, angle steels and steel brackets, the front and rear hoop plates are respectively tightly attached to the front and rear surfaces of the pipe frame column, horizontal angle steels are welded at the equal height positions of the outer sides of the front and rear hoop plates, the front and rear opposite angle steels are fastened through a group of bolts vertical to the front and rear opposite angle steels, the side hoop plates are welded between the front and rear hoop plates and tightly attached to the two side surfaces of the pipe frame column, the steel brackets are welded on the side hoop plates, and the lifting columns are welded on the steel brackets;
when there is vertical pipe support roof beam at the top of pipe support post, supporting component includes crab-bolt, steel sheet, and the vertical pipe support roof beam surface of pipe support post both sides adopts the crab-bolt bar planting, and the steel sheet passes through the crab-bolt fastening at roof beam surface, and the lifting column welding is on the steel sheet.
The storey-adding structure of the steel structure building fully utilizes the upright columns and the cross beams of the original building structure, and supports the supporting structure of the lifting columns on the original upright columns and/or the original cross beams. The lifting column is coaxial with the upright column, the upper end of the lifting column penetrates through a hole in a roof for the lifting column to penetrate through, and the lifting column has a limiting effect on the roof during lifting, so that the lifting operation is high in accuracy, and the alignment and installation of the subsequently added upright column are facilitated.
Further, a sleeve is vertically installed at a hole in the top surface of the steel roof truss, through which the lifting column penetrates, the sleeve is fixedly connected with the top surface of the steel roof truss, the lifting column penetrates through the sleeve, and the inner diameter of the sleeve is matched with the diameter of the lifting column.
At roofing hole department installation sleeve, the sleeve can be spacing better with the fixed back of steel roof truss top surface to the promotion post, prevents steel roof truss horizontal migration, still is favorable to making the slip of promotion post in the hole more steady, makes whole promotion operation go on smoothly.
Furthermore, the steel bracket consists of a horizontal panel and a vertical plate, a groove is arranged on the vertical plate, the vertical width of the groove is equal to the diameter of the bolt, the horizontal depth of the groove is larger than or equal to the diameter of the bolt, and the bolt penetrates through the groove and is clamped tightly.
Furthermore, two angle steels are respectively welded on the front and rear face hoop plates, two bolts are respectively arranged on the outer sides of the side hoop plates to fasten the angle steels, an upper groove and a lower groove are arranged on a vertical plate of the steel bracket, and two bolts on the outer sides of the side hoop plates respectively penetrate through the upper groove and the lower groove and are clamped.
One or two pairs of grooves are formed in the vertical plate of the steel bracket and are used for the bolts 5 to penetrate through, so that the firmness of the whole supporting structure can be improved.
Furthermore, the lifting beam is provided with a guy rope, so that the construction safety is further ensured.
The invention also relates to a storey adding method of the steel structure building, which comprises the following steps:
step one, when the top of the pipe frame column is not provided with a longitudinal pipe frame beam, arranging a support part at the top of the pipe frame column needing to be heightened, wherein the installation method of the support part comprises the following steps: welding angle steel at equal height positions on one sides of the front and rear hoop plates, tightly attaching the other sides of the front and rear hoop plates to the front and rear surfaces of the pipe frame column, and vertically penetrating the angle steel through bolts to fasten the front and rear hoop plates to the front and rear surfaces of the pipe frame column; then, installing side hoop plates between the front hoop plate and the rear hoop plate, enabling the side hoop plates to be tightly attached to two side surfaces of the pipe frame column, firmly welding the front hoop plate and the rear hoop plate with the side hoop plates, clamping a bolt by a groove on a vertical plate of the steel bracket, and welding the steel bracket on the side hoop plates;
when the top of the pipe frame column is provided with a longitudinal pipe frame beam, a supporting component is arranged on the top surface of the longitudinal pipe frame beam close to the pipe frame column, and the mounting method of the supporting component comprises the following steps: adopting anchor bolts to plant ribs on the top surfaces of the longitudinal pipe frame beams on two sides of the pipe frame columns, and fastening the steel plates on the top surfaces of the longitudinal pipe frame beams through the anchor bolts;
step two, removing all roof tiles of the steel roof truss above the top of the pipe frame column to be heightened to form a hole through which the lifting column can pass;
step three, taking two lifting columns, enabling the two lifting columns to penetrate through a roof opening of the steel roof truss, respectively welding one ends of the two lifting columns on the steel corbels and/or the steel plate, and respectively welding the other ends of the two lifting columns with two ends of the lifting beam, thereby completing the installation of a group of lifting columns; installing lifting columns on the tops of other pipe frame columns according to the same method; the height of the lifting column meets the installation height of the steel column after the steel roof truss is lifted;
welding a steel scale rod on a column head embedded part of the pipe frame column needing to be heightened;
step five, tying and hanging synchronous electric hoists with the same type and the same specification in the middle of the lifting beam, so that the hook heads of all the electric hoists are at the same height of the steel scale rod; starting a unified button to lift the electric hoists to the required height, checking whether all the electric hoists are synchronous or not, and if the electric hoists are asynchronous, immediately replacing the electric hoists until all the electric hoists are synchronous;
step six, connecting each electric hoist with the steel roof truss through a steel wire rope;
seventhly, adding a guy rope on the lifting beam according to the lifting height selectivity of the steel roof truss;
step eight, dismantling the connection between the steel roof truss and the original pipe frame column head to separate the steel roof truss from the pipe frame column head;
step nine, after all the electric hoists are lifted singly in a stressed state, starting unified buttons of all the electric hoists, slowly lifting the whole steel roof truss, and checking the lifting synchronization condition at any time through a steel scale rod during lifting until the mounting height of a steel column is met;
installing the steel column on the original pipe frame column head needing to be heightened, and installing a connecting beam between the steel columns;
step eleven, after all the steel columns and the connecting beams are installed, the electric hoist can be started, the steel roof truss is slowly dropped down to be located on the newly added steel columns, and after the steel roof truss is checked to be correct, the steel roof truss and the heightened steel columns are firmly connected.
When there is pre-buried steel sheet former vertical pipe support roof beam top surface, can save step one, directly weld the lift column on pre-buried steel sheet.
Further, in the second step, after the roof tiles of the steel roof truss are removed, a sleeve matched with the inner diameter of the lifting column is vertically installed in the formed hole, the sleeve is fixedly connected with the top surface of the steel roof truss, and the lifting column penetrates through the sleeve; in the eleventh step, the sleeve is firstly removed, and then the steel roof truss is firmly connected with the heightened steel columns.
Furthermore, the steel bracket consists of a horizontal panel and a vertical plate, a groove is arranged on the vertical plate, the vertical width of the groove is equal to the diameter of the bolt, the horizontal depth of the groove is larger than or equal to the diameter of the bolt, and the bolt penetrates through the groove and is clamped tightly.
The storey-adding structure and the storey-adding method of the steel structure building can stably and accurately raise the whole roof system, have large lifting height, stably drop the whole steel structure roof after the newly-added steel columns are connected, quickly finish the heightening task of the steel structure roof without dismantling, save a large amount of labor cost and machinery platform cost, accelerate the construction progress and reduce the construction cost and the safety risk. The storey-adding structure and the storey-adding method of the steel structure building can be used for not only pipe gallery heightening, but also other building engineering.
Drawings
Fig. 1 is a schematic structural view of the overall lifting process of a steel roof truss without longitudinal pipe truss girders at the tops of pipe truss columns.
Fig. 2 is a right side view of the steel roof truss system of fig. 1 after being lifted as a whole.
3 fig. 3 3 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 the 3 plane 3 a 3- 3 a 3 of 3 fig. 3 2 3. 3
Fig. 4 is a schematic view of the front vertical surface structure of the steel corbel.
Fig. 5 is a side elevation structure schematic diagram of a steel corbel.
Fig. 6 is a schematic structural view of the overall lifting process of the steel roof truss with the longitudinal pipe truss girders at the tops of the pipe truss columns.
Fig. 7 is a right side view of the roof truss system of fig. 6 after being lifted in its entirety.
Fig. 8 is a sectional view taken along the plane B-B of fig. 7.
In the figure: 1. a pipe rack column; 2. a transverse frame beam; 3. front and rear hoop plates; 4. angle steel; 5. a bolt; 6. a side gusset; 7. steel corbels; 71. a vertical plate is vertical; 72. a horizontal panel; 73. a groove; 8. a lifting column; 81. a sleeve; 9. a lifting beam; 10. an electric hoist; 11. a steel roof truss; 12. a steel scale rod; 13. a steel column; 14. a longitudinal pipe frame beam; 15. an anchor bolt; 16. a steel plate; 17. a guy rope.
Detailed Description
Example 1
Fig. 1 is a schematic structural diagram of the overall lifting process of the steel roof truss of the embodiment. In this embodiment, only transverse pipe frame beams 12, and no longitudinal pipe frame beams 14, are provided at the top of the pipe frame column 1.
The steel construction building of this embodiment is the piping lane, and the storey-adding structure of piping lane includes pipe support post 1, supporting component, promotes post 8, hoisting beam 9, electric block 10, steel roof truss 11, steel scale pole 12, steel column 13.
As shown in fig. 1 to 3, the support member includes front and rear hoop plates 3, side hoop plates 6, bolts 5, angle irons 4, and steel brackets 7. Two front and back hoop plates 3 are respectively tightly attached to the front face and the back face of the top of the pipe frame column 1, two angle steels 4 are horizontally welded on the outer sides of the front and back hoop plates 3 respectively, a pair of front and back opposite angle steels 4 are fastened through two bolts 5 perpendicular to the front and back opposite angle steels, a side hoop plate 6 is welded between the front and back hoop plates 3 and tightly attached to two sides of the pipe frame column 1, and a steel bracket 7 is welded on the side hoop plate 6.
As shown in fig. 4 and 5, the steel corbel 7 is composed of a horizontal panel 72 and a vertical upright 71. The vertical plate 71 is provided with a groove 73, the vertical width of the groove 73 is equal to the diameter of the bolt 5, the horizontal depth of the groove 73 is larger than the diameter of the bolt 5, and the bolt 5 penetrates through the groove 73 and is clamped.
As shown in fig. 1 and 2, one end of each of the two lifting columns 8 is welded to the top surface of the horizontal panel 72, and the other end thereof passes through the vertical sleeve 81 on the top surface of the steel roof truss 11 and is welded to the two ends of the lifting beam 9. The inner diameter of the sleeve 81 matches the diameter of the lifting column 8. An electric hoist 10 is tied and hung in the middle of the lifting beam 9, and the electric hoist 10 is connected with a steel roof truss 11. The steel scale rod 12 is welded on one side of the top of the pipe frame column 1, and the steel column 13 is welded on the top of the pipe frame column 1 as an increased steel column. The lifting beam 9 is provided with a guy rope 17.
Fig. 1 is a schematic diagram of the overall lifting process of the pipe gallery steel roof truss 11 in the embodiment, in the diagram, the dotted line steel roof truss 11 is the height of the original pipe frame, and the solid line steel roof truss 11 is the height meeting the design requirement after lifting.
The working process of the embodiment:
firstly, horizontally welding two angle steels 4 on one sides of two front and rear hoop plates 3, then tightly attaching the other sides of the front and rear hoop plates 3 to the front and rear surfaces of the top of a pipe frame column 1, and then fastening the front and rear hoop plates 3 to the front and rear surfaces of the pipe frame column 1 by penetrating two bolts 5 through the angle steels 4; then, installing side hoop plates 6 between the front hoop plate and the rear hoop plate 3, enabling the side hoop plates 6 to be tightly attached to two side surfaces of the pipe frame column 1, firmly welding the front hoop plate and the rear hoop plate 3 with the side hoop plates 6, clamping the bolts 5 above the grooves 73 of the steel corbels 7, and welding the steel corbels 7 on the side hoop plates 6;
step two, removing roof tiles of the steel roof truss 11 above the top of all the pipe frame columns 1 to be heightened to form a hole through which the lifting column 8 can pass, and mounting a vertical sleeve 81 on the hole;
step three, taking two lifting columns 8, enabling the two lifting columns to penetrate through a vertical sleeve 81 of the roof of the steel roof truss 11, respectively welding one ends of the two lifting columns 8 on a horizontal panel 72 of the steel corbel 7, and respectively welding the other ends of the two lifting columns 8 with two ends of a lifting beam 9; thereby completing the set of lifting columns 8; then the lifting columns 8 on the top of other pipe frame columns 1 are installed according to the same method; the height of the lifting column 8 meets the installation height of a steel column 13 after the steel roof truss 11 is lifted;
welding a steel scale rod 12 on a column head embedded part of the pipe frame column 1 needing to be heightened;
step five, tying and hanging synchronous electric hoists 10 with the same type and the same specification in the middle of the lifting beam 9, so that the hook heads of all the electric hoists 10 are at the same height of the steel scale rod 12; starting a unified button to lift the electric hoists 12 to a required height, checking whether all the electric hoists 12 are all synchronous, and if the electric hoists are not synchronous, immediately replacing the electric hoists until all the electric hoists are synchronous;
step six, connecting each electric hoist 12 with the steel roof truss 11 through a steel wire rope;
seventhly, additionally arranging a guy rope on the lifting beam;
step eight, dismantling the connection between the steel roof truss 11 and the original column head of the pipe frame column 1 to separate the steel roof truss 11 from the column head of the pipe frame column 1;
step nine, after all the electric hoists 12 are lifted in a stressed state individually, starting the unified buttons of all the electric hoists 12, slowly lifting the whole steel roof truss 11, and checking the lifting synchronization condition at any time through the steel scale rod 12 during lifting until the installation height of the steel column 13 is met;
step ten, mounting the steel columns 13 on the column heads of the original pipe frame columns 1 needing to be heightened, and mounting connecting beams among the steel columns 13;
step eleven, after all the steel columns 13 and the connecting beams are installed, starting the electric hoist 12, slowly dropping the steel roof truss 11 to enable the steel roof truss to be located on the newly added steel columns 13, detaching the sleeve 81, and after the steel roof truss 11 is checked to be correct, firmly connecting the steel roof truss 11 with the heightened steel columns 13.
Example 2
Fig. 6 to 8 are schematic structural views of the overall lifting process of the steel roof truss of the embodiment.
The difference from the embodiment 1 is that the top of the pipe frame column 1 of the embodiment has a longitudinal pipe frame beam 14. In this embodiment, steel plates 16 are used to support the lifting columns 8. The lifting column 8 supporting part of the embodiment comprises anchor bolts 15 and steel plates 16, wherein the top surfaces of the longitudinal pipe frame beams 14 close to the two sides of the pipe frame column 1 are embedded with steel bars by the anchor bolts 15, the steel plates 16 are fastened on the top surfaces of the beams 14 through the anchor bolts 15, and the lifting column 8 is welded on the steel plates 16.
When the top surface of the original longitudinal pipe frame beam is provided with the embedded steel plate, the step of installing the steel plate 16 can be omitted, and the lifting column 8 is directly welded on the embedded steel plate.
Although preferred embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of illustration only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (8)
1. The utility model provides a steel construction building's layer structure that increases which characterized in that: the lifting device comprises pipe frame columns (1), supporting parts, lifting columns (8), lifting beams (9), electric hoists (10), steel roof trusses (11), steel scale rods (12) and steel columns (13), wherein the supporting parts are fixed to the tops of the pipe frame columns (1), one ends of the two lifting columns (8) are welded to the top surfaces of the supporting parts respectively, the other ends of the two lifting columns penetrate through the top surfaces of the steel roof trusses (11) respectively and are welded to the two ends of the lifting beams (9), the electric hoists (10) are tied and hung in the middle of the lifting beams (9), the electric hoists (10) are connected with the steel roof trusses (11), the steel scale rods (12) are welded to one side of the tops of the pipe frame columns (1), and the steel columns (13) are welded to the tops of the pipe frame; wherein,
when the top of the pipe frame column (1) is not provided with a longitudinal pipe frame beam (14), the supporting component comprises front and rear hoop plates (3), side hoop plates (6), bolts (5), angle steels (4) and steel brackets (7), the front and rear hoop plates (3) are respectively tightly attached to the front and rear faces of the pipe frame column (1), horizontal angle steels (4) are welded at the equal height positions of the outer sides of the front and rear hoop plates (3), the front and rear opposite angle steels (4) are fastened through a group of bolts (5) vertical to the front and rear opposite angle steels, the side hoop plates (6) are welded between the front and rear hoop plates (3) and tightly attached to two sides of the pipe frame column (1), the steel brackets (7) are welded on the side hoop plates (6), and the lifting columns (8) are welded on the steel brackets;
when there is vertical pipe frame roof beam (14) at the top of pipe frame post (1), supporting component includes crab-bolt (15), steel sheet (16), and crab-bolt (15) bar planting is adopted on vertical pipe frame roof beam (14) top surface of pipe frame post (1) both sides, and steel sheet (16) pass through crab-bolt (15) fastening at vertical pipe frame roof beam (14) top surface, and lifting column (8) welding is on steel sheet (16).
2. The storey-adding structure of steel structure building according to claim 1, wherein: the hole department that the top surface of steel roof truss (11) supplied lift post (8) to pass installs sleeve (81) perpendicularly, sleeve (81) and the top surface fixed connection of steel roof truss (11), lift post (8) follow pass in sleeve (81), the internal diameter of sleeve (81) and the diameter matching of lift post (8).
3. The storey-adding structure of steel structure building according to claim 1, wherein: the steel corbel (7) consists of a horizontal panel (72) and a vertical plate (71), a groove (73) is formed in the vertical plate (71), the vertical width of the groove (73) is equal to the diameter of the bolt (5), the horizontal depth of the groove (73) is larger than or equal to the diameter of the bolt (5), and the bolt (5) penetrates through the groove (73) and is clamped tightly.
4. The storey-adding structure of the steel structure building according to claim 3, wherein: the angle steel bracket is characterized in that the front hoop plate and the rear hoop plate (3) are respectively welded with two angle steel (4), the outer sides of the side hoop plates (6) are respectively provided with two bolts (5) for fastening the angle steel (4), the vertical plate (71) of the steel bracket (7) is provided with an upper groove (73) and a lower groove (73), and the two bolts (5) on the outer sides of each side hoop plate (6) respectively penetrate through the upper groove (73) and the lower groove (73) and are clamped.
5. The storey-adding structure of steel structure building according to claim 1, wherein: and a cable rope (17) is arranged on the lifting beam (9).
6. A storey adding method for a steel structure building is characterized by comprising the following steps: the method comprises the following steps:
step one, when the top of the pipe frame column (1) is not provided with a longitudinal pipe frame beam (14), arranging a supporting part at the top of the pipe frame column (1) needing to be heightened, wherein the mounting method of the supporting part comprises the following steps: firstly, welding angle steel (4) at equal height positions on one side of the front and rear hoop plates (3), tightly attaching the other side of the front and rear hoop plates (3) to the front and rear surfaces of the pipe frame column (1), and then fastening the front and rear hoop plates (3) on the front and rear surfaces of the pipe frame column (1) by penetrating bolts (5) through the angle steel (4); then, installing side hoop plates (6) between the front hoop plate and the rear hoop plate (3), enabling the side hoop plates (6) to be tightly attached to two side surfaces of the pipe frame column (1), firmly welding the front hoop plate and the rear hoop plate (3) with the side hoop plates (6), clamping the bolts (5) by the grooves (73) in the vertical plates (71) of the steel bracket (7), and welding the steel bracket (7) on the side hoop plates (6);
when the top of the pipe frame column (1) is provided with a longitudinal pipe frame beam (14), a supporting component is arranged on the top surface of the longitudinal pipe frame beam (14) close to the pipe frame column (1), and the mounting method of the supporting component is as follows: the top surfaces of longitudinal pipe frame beams (14) on two sides of the pipe frame column (1) are provided with embedded bars by adopting anchor bolts (15), and a steel plate (16) is fastened on the top surfaces of the longitudinal pipe frame beams (14) through the anchor bolts (15);
secondly, removing roof tiles of the steel roof truss (11) above the top of the pipe frame column (1) to be heightened to form a hole through which the lifting column (8) can penetrate;
step three, taking two lifting columns (8), enabling the two lifting columns to penetrate through the roof opening of the steel roof truss (11), respectively welding one ends of the two lifting columns (8) on the steel corbels (7) and/or the steel plate (16), and respectively welding the other ends of the two lifting columns (8) with two ends of the lifting beam (9); thereby completing the installation of a set of lifting columns (8); installing the lifting columns (8) on the tops of other pipe frame columns (1) according to the same method; the height of the lifting column (8) meets the installation height of a steel column (13) after the steel roof truss (11) is lifted;
welding a steel scale rod (12) on a column head embedded part of the tube frame column (1) needing to be heightened;
step five, tying and hanging synchronous electric hoists (10) with the same type and the same specification at the middle part of the lifting beam (9), so that the hook heads of all the electric hoists (10) are at the same height of the steel scale rod (12); starting a unified button to lift the electric hoist (12) to a required height, checking whether all the electric hoists (12) are synchronous or not, and if the electric hoists are asynchronous, immediately replacing the electric hoists until all the electric hoists are synchronous;
step six, connecting each electric hoist (12) with the steel roof truss (11) through a steel wire rope;
seventhly, adding a guy rope on the lifting beam according to the lifting height selectivity of the steel roof truss;
step eight, dismantling the connection between the steel roof truss (11) and the original column head of the pipe frame column (1) to separate the steel roof truss (11) from the column head of the pipe frame column (1);
step nine, after all the electric hoists (12) are lifted singly in a stressed state, starting unified buttons of all the electric hoists (12), slowly lifting the whole steel roof truss (11), and checking the lifting synchronization condition at any time through the steel scale rod (12) during lifting until the mounting height of the steel column (13) is met;
installing the steel columns (13) on the column heads of the original pipe frame columns (1) needing to be heightened, and installing connecting beams among the steel columns (13);
step eleven, after all the steel columns (13) and the connecting beams are installed, the electric hoist (12) can be started, the steel roof truss (11) is slowly dropped down to be located on the newly added steel columns (13), and after the steel roof truss is checked to be correct, the steel roof truss (11) and the heightened steel columns (13) are firmly connected.
7. The storey-adding method of the steel structure building according to claim 6, wherein: in the second step, after roof tiles of the steel roof truss (11) are removed, a sleeve (81) matched with the inner diameter of the lifting column (8) is vertically installed in a formed hole, the sleeve (81) is fixedly connected with the top surface of the steel roof truss (11), and the lifting column (8) penetrates through the sleeve (81); in the eleventh step, the sleeve is firstly removed, and then the steel roof truss (11) is firmly connected with the heightened steel column (13).
8. The storey-adding method of the steel structure building according to claim 6, wherein: the steel corbel (7) consists of a horizontal panel (72) and a vertical plate (71), a groove (73) is formed in the vertical plate (71), the vertical width of the groove (73) is equal to the diameter of the bolt (5), the horizontal depth of the groove (73) is larger than or equal to the diameter of the bolt (5), and the bolt (5) penetrates through the groove (73) and is clamped tightly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811112371.3A CN108952207B (en) | 2018-09-25 | 2018-09-25 | Steel structure building storey adding structure and storey adding method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811112371.3A CN108952207B (en) | 2018-09-25 | 2018-09-25 | Steel structure building storey adding structure and storey adding method |
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| Publication Number | Publication Date |
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| CN108952207A true CN108952207A (en) | 2018-12-07 |
| CN108952207B CN108952207B (en) | 2023-09-19 |
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| CN201811112371.3A Active CN108952207B (en) | 2018-09-25 | 2018-09-25 | Steel structure building storey adding structure and storey adding method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111877789A (en) * | 2020-07-01 | 2020-11-03 | 上海建工集团股份有限公司 | Construction method for integrally lifting, replacing and constructing new and old steel roof |
| CN111877790A (en) * | 2020-07-01 | 2020-11-03 | 上海建工集团股份有限公司 | Construction method for integrally jacking and replacing new and old steel roof |
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| CN111877789A (en) * | 2020-07-01 | 2020-11-03 | 上海建工集团股份有限公司 | Construction method for integrally lifting, replacing and constructing new and old steel roof |
| CN111877790A (en) * | 2020-07-01 | 2020-11-03 | 上海建工集团股份有限公司 | Construction method for integrally jacking and replacing new and old steel roof |
| CN111877790B (en) * | 2020-07-01 | 2021-11-09 | 上海建工集团股份有限公司 | Construction method for integrally jacking and replacing new and old steel roof |
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| CN108952207B (en) | 2023-09-19 |
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