CN112681512B - Hollow support structure and method for construction of high and large space combination beam - Google Patents
Hollow support structure and method for construction of high and large space combination beam Download PDFInfo
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- CN112681512B CN112681512B CN202011515380.4A CN202011515380A CN112681512B CN 112681512 B CN112681512 B CN 112681512B CN 202011515380 A CN202011515380 A CN 202011515380A CN 112681512 B CN112681512 B CN 112681512B
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Abstract
The invention discloses a hollow support structure and a hollow support method for construction of a high and large space combination beam, which comprise a steel pipe column, vertical support plates, flat hydraulic jacks, support cushion beams, a circular cover plate, a hollow annular connecting plate, vertical stiffening plates, a master control console and the like, wherein the lower end of the steel pipe column is hinged to the top of a reinforced concrete frame column, four groups of vertical support plates are welded at four-point positions on the outer wall of the top of the steel pipe column, the circular cover plates are welded on the steel pipe column and the vertical support plate tops, the support cushion beams are arranged above the hydraulic flat jack, and the jacks and the support cushion beams correspond to the positions of the vertical support plates below. The hollow supporting structure and the method for the construction of the profile steel-concrete composite beam are used for the construction of the profile steel-concrete composite beam in a high and large space, and solve the problems of large workload, high cost and long construction period of the erection of the full space type support in the construction of the high and large space # -shaped profile steel-concrete composite beam and the integral roof, such as a theater, a stadium and the like.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a hollow supporting structure and a hollow supporting method for construction of a high and large space section steel-concrete composite beam.
Background
In recent years, with the rapid development of the social and economic level, the building industry changes day by day, and some tall and big space venues also come into play, the buildings are novel in shape and naturally formed, but the buildings are complex in structure and large in space, and the construction of the upper # -shaped steel-concrete composite beam and the integral roof is very difficult. The invention solves the problems that the deformation of a steel beam is difficult to control and the safety risk is large when the non-support construction is adopted, and the deformation of the whole high and large space upper structure in the high and large space groined section steel-concrete composite beam and the integral roof construction of a theater, a venue and the like is supported at the middle position of the groined section steel-concrete composite beam by adopting 4 groups of hollow supporting structures, replaces the prior method of adopting the high and large full-space support to support the groined section steel-concrete composite beam, improves the construction environment, improves the production efficiency, greatly reduces the cost, and has safe and reliable construction, easy guarantee of engineering quality, obvious benefit and good effect.
Disclosure of Invention
In order to provide a hollow type supporting structure and a method for constructing a high and large space section steel-concrete composite beam, the concrete purpose is to find a plurality of substantial technical effects of the concrete implementation part.
In order to achieve the purpose, the invention adopts the following technical scheme:
the hollow supporting structure comprises a steel pipe column, vertical supporting plates, a circular cover plate, a hydraulic flat jack, supporting pad beams, a hollow annular connecting plate, vertical stiffening plates, a master control console and the like, wherein the lower end of the steel pipe column is hinged to a reinforced concrete frame column top, four groups of vertical supporting plates are welded to the outer wall of the top of the steel pipe column, the steel pipe column and the vertical supporting plate top are welded with the circular cover plate, 4 groups of hydraulic flat hydraulic jacks are installed on the circular cover plate, 4 groups of supporting pad beams are placed above the flat jack, the jacks and the supporting pad beams are placed corresponding to the vertical supporting plates below, the hydraulic flat jack is connected with the control console, and the 4 jacks realize synchronous and intelligent control. The 4 support pad beams are supported on the lower edges of the periphery of the cross-shaped node of the profile steel-concrete composite beam in the tall and large space, a hollow support structure is formed in the tall and large space, and the main rib of the composite beam penetrates through the cavity of the support pad beam and does not interfere with the hollow support structure. And after the steel beam and the main reinforcement of the composite beam are assembled, a bottom template is installed, and the high and large space # -shaped steel-concrete composite beam and the integral roof construction are carried out.
The invention further adopts the technical scheme that the steel pipe columns are arranged on the tops of the reinforced concrete frame columns by adopting a tower crane, and the 4 groups of steel pipe columns are firmly connected in parallel by adopting [20a ] steel.
The invention further adopts the technical scheme that four groups of vertical supporting plates are welded at four-point positions of the outer wall within 1.2m of the top of the steel pipe column, the vertical supporting plates are flush with the top of the steel pipe column, the middle parts of the vertical supporting plates are fixed and reinforced by a hollow annular connecting plate with the thickness of 15mm, and each vertical supporting plate is provided with a vertical stiffening plate with the thickness of 15 mm.
The technical scheme is that a circular cover plate with the thickness of 20mm is welded on the top of the steel pipe column, 4 groups of hydraulic flat jacks are arranged on the circular cover plate and used for tightly jacking the bottom of the beam and the support rod members and facilitating the unloading of a support system, a 350mm high support pad beam is placed above the flat jacks, the bottom of the support pad beam is flush with the bottom of the profile steel-concrete combined beam, and the jacks and the support pad beam correspond to the positions of the vertical support plates below.
The technical scheme of the invention is that the 4 support backing beams are supported at the lower edges of the periphery of the cross-shaped node of the section steel-concrete composite beam in the tall and large space to form a hollow support structure for the tall and large space, and the main rib of the composite beam at the lower part of the concrete coated outside the steel beam passes through the cavity of the support backing beam and does not interfere with the hollow support structure.
The invention further adopts the technical scheme that after the steel beam and the main reinforcement of the combined beam are assembled, a bottom template is arranged below the steel beam and the main reinforcement of the combined beam, and the high and large space groined section steel-concrete combined beam and the integral roof construction are carried out.
The invention further adopts the technical scheme that the hydraulic flattening flat jack is arranged on a circular cover plate, the periphery of the hydraulic flattening flat jack is limited and fixed by a small triangular plate, each hydraulic jack is 80t in rated bearing capacity and is connected in parallel with a control console, and the control console intelligently and synchronously controls 4 hydraulic jacks for jacking the bottom of the I-shaped steel beam, adjusting the height of the steel tube column rod and facilitating the unloading of a supporting system.
The invention further adopts the technical scheme that the section steel-concrete combined beam adopts outer-coated concrete, 2 layers of phi 25mm combined beam main reinforcements are arranged at the lower edge part, the section steel-concrete combined beam nodes are arranged in a longitudinal and transverse layered mode, and the combined beam main reinforcements penetrate through the cavity of the support backing beam and do not interfere with the hollow support structure.
A hollow supporting structure and a method for high and large space section steel-concrete composite beam construction comprise the following steps:
(1) installing a steel pipe column and a column top supporting plate: the steel-pipe column adopts QTZ63 type tower crane to install in reinforced concrete frame capital, and it is firm to adopt [20a shaped steel to carry out the parallel and parallel connection between 4 groups of steel-pipe columns, and four groups of vertical support plates of outer wall quartering point position welding in the 1.2m within range of steel-pipe column top, vertical support plate and steel-pipe column capital parallel and level, vertical support plate middle part adopt one 15mm thick cavity annular connecting plate fixed, strengthen, set up one 15mm thick vertical stiffening plate on every vertical support plate.
(2) Installing a column top circular cover plate: the steel pipe column top welds circular apron, and circular apron adopts phi 1200 mm's 20mm thick steel plate processing, and the bottom surface is firm with steel pipe column, vertical backup pad welding.
(3) Installing a hydraulic flat jack: set up 4 groups of hydraulic pressure flat jack on the circular apron, adopt little set-square spacing fixed all around, every rated bearing capacity 80t, parallel connection in control cabinet, 4 hydraulic jack of control cabinet intelligence, synchro control for push up I-shaped steel beam bottom and member and elevation adjustment such as steel-pipe column tightly, and make things convenient for the support system to unload.
(4) Mounting a support cushion beam: a350 mm high supporting pad beam is arranged above the flat jack, and the flat jack and the supporting pad beam both correspond to the positions of the vertical supporting plates below.
(5) Installing the section steel-concrete combined beam: the section steel-concrete combined beam adopts an H-shaped steel 1800x200 steel beam and wrapped reinforced concrete to form a high and large space 'well' -shaped section steel-concrete combined beam and an integral roof, and after the split pieces are installed in place, a hydraulic flat jack is adopted to jack the steel pipe column at the joint.
(6) And (3) construction of the main reinforcement of the profile steel-concrete composite beam: the lower edge part of the section steel-concrete composite beam is provided with 2 layers of phi 25mm composite beam main reinforcements, the longitudinal and transverse layers are arranged at the joints of the section steel-concrete composite beam, and the composite beam main reinforcements penetrate through the cavity of the support pad beam and do not interfere with the hollow support structure.
(7) Construction of the section steel-concrete combined beam template: after the steel beam and the main reinforcement of the combined beam are assembled, a bottom template is arranged below the steel beam and the main reinforcement of the combined beam, and the high and large space groined section steel-concrete combined beam and the integral roof construction are carried out.
Compared with the prior art, the invention adopting the technical scheme has the following beneficial effects:
the hollow type supporting structure and the method for the high and large space section steel-concrete composite beam construction are suitable for the high and large space # -shaped section steel-concrete composite beam and integral roof construction of theaters, venues and the like, the traditional full-hall type support is adopted for building, the workload is large, the cost is high, the construction period is long, when the non-support construction is adopted, the deformation of the steel beam is not easy to control, and the safety risk is large. Local stress, deformation and overall line shape in the construction of the # -shaped profile steel-concrete composite beam meet the design requirements, the construction quality of the main body structure is excellent, the engineering appearance quality is excellent, and the design and standard requirements are met.
Drawings
To further illustrate the present invention, the following provides the associated drawings:
FIG. 1 is a schematic elevation view of the hollow support structure of the present invention;
FIG. 2 is a schematic plan view of the present invention;
wherein:
1, steel pipe column; 2, a vertical supporting plate; 3, a circular cover plate; 4, flattening the jack by liquid; 5 supporting the pad beam; 6, a hollow annular connecting plate; 7, vertical stiffening plates; 8, a master control console; 9 type steel-concrete composite beam; 10 combining beam main reinforcements; 11, bottom die;
Detailed Description
The attached drawings are schematic diagrams of main component compositions of the device, do not represent the external dimension, the connection mode, the assembly form, the position relation and the like of the device, and omit part of rod pieces and the like in the drawings.
It should be noted that the plurality of schemes provided in this patent include their own basic schemes, which are independent of each other and are not restricted to each other, but they may be combined with each other without conflict, so as to achieve a plurality of effects.
A hollow supporting structure and a method for high and large space section steel-concrete composite beam construction comprise a steel pipe column (1), vertical supporting plates (2), a circular cover plate (3), a hydraulic flattening flat jack (4), supporting pad beams (5), a hollow annular connecting plate (6), vertical stiffening plates (7), a master control console (8) and the like, wherein the lower end of the steel pipe column (1) is hinged to a reinforced concrete frame column jack, four groups of vertical supporting plates (2) are welded on the outer wall of the top of the steel pipe column (1), the circular cover plate (3) is welded on the steel pipe column and the vertical supporting plate jacks, 4 groups of hydraulic flattening hydraulic jacks (4) are installed on the circular cover plate, 4 groups of supporting pad beams (5) are placed above the hydraulic flattening flat jack, the jacks and the supporting pad beams are both placed corresponding to the vertical supporting plates below, and the hydraulic flattening flat jacks are connected with the control console (8), and synchronous intelligent control is realized. The 4 supporting pad beams are supported on the lower edges of the periphery of the cross-shaped node of the high and large space section steel-concrete combined beam (9) to form a hollow supporting structure for the high and large space, and the main ribs (10) of the combined beam penetrate through the cavity of the supporting pad beam and form a non-interfering position relation with the hollow supporting structure. After the steel beam and the main reinforcement of the composite beam are assembled, a bottom template (11) is installed, and the high and large space # -shaped steel-concrete composite beam and the integral roof construction are carried out.
The steel pipe column (1) is installed on the top of the reinforced concrete frame column by adopting a tower crane, and the 4 groups of steel stand columns are firmly connected in parallel by adopting section steel.
Four groups of vertical supporting plates (2) are welded at the four-point positions of the outer wall within the range of 1.2m at the top of the steel pipe column (1), the vertical supporting plates are flush with the top of the steel pipe column, the middle parts of the vertical supporting plates are fixed and strengthened by a hollow annular connecting plate (6) with the thickness of 15mm, and a vertical stiffening plate (7) with the thickness of 15mm is arranged on each vertical supporting plate.
The steel-pipe column (1) top welding circular apron (3) that 20mm is thick, set up 4 groups hydraulic fluid on the circular apron and flatten flat jack (4) for at the bottom of the tight roof beam in top and support member and make things convenient for the support system to unload, 350mm high support filler beam (5) are placed to flat jack top, and the parallel and level at the bottom of the support filler beam and shaped steel-concrete composite beam (9), flat jack and support filler beam all correspond to the position of vertical support plate (2) of below.
The 4 supporting pad beams (5) are supported on the lower edges of the periphery of the cross-shaped node of the high and large space section steel-concrete composite beam (9) to form a hollow supporting structure for a high and large space, and the main ribs (10) of the composite beam, which are wrapped outside the steel beam and are arranged at the lower part of the concrete, penetrate through the cavity of the supporting pad beam and are not interfered with the hollow supporting structure.
After the steel beam and the main reinforcement (10) of the combined beam are assembled, a bottom template (11) is arranged below the steel beam and the main reinforcement, and the high and large space groined section steel-concrete combined beam and the integral roof construction are carried out.
The vertical supporting plates (2) are arranged in four groups, each group comprises 2 steel plates with 20mm thick trapezoidal sections, and the height of each steel plate is 850mm, and the width of each steel plate is 300 mm. The vertical supporting plate is fixed by a hollow annular connecting plate (6) in the annular direction, so that the stress cooperativity of the supporting plate is enhanced.
The hydraulic flattening flat jack (4) is installed on the circular cover plate, the periphery of the hydraulic flattening flat jack is limited and fixed by the small set square, the rated bearing capacity of each set square is 80t, the hydraulic flattening flat jack is connected to the control console (8) in parallel, the control console intelligently and synchronously controls 4 hydraulic jacks, the hydraulic flattening flat jack is used for jacking the bottom of the I-shaped steel beam, adjusting the steel pipe column rod piece and adjusting the height, and the hydraulic flattening flat jack is convenient for a supporting system to drop.
The section steel-concrete combined beam (9) adopts outer-coated concrete, 2 layers of phi 25mm combined beam main reinforcements (10) are arranged at the lower edge part, the section steel-concrete combined beam nodes are arranged in a longitudinal and transverse layered mode, and the combined beam main reinforcements (10) penetrate through the cavity of the support pad beam (5) and do not interfere with the hollow support structure.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are included to illustrate the principles of the invention, but rather that various modifications and improvements may be made without departing from the spirit and scope of the invention, which is intended to be within the scope of the claims.
Claims (6)
1. A construction method of a hollow supporting structure for constructing a high and large space combination beam is characterized in that the lower end of a steel pipe column (1) is hinged to the top of a reinforced concrete frame column, and four groups of vertical supporting plates (2) are welded on the outer wall of the top of the steel pipe column (1); a circular cover plate (3) is welded on the top of the steel pipe column (1) and the vertical supporting plate; four groups of hydraulic flat jacks (4) are mounted on the circular cover plate, four groups of supporting cushion beams (5) are arranged above the hydraulic flat jacks (4), the hydraulic flat jacks and the supporting cushion beams are arranged corresponding to the vertical supporting plates below, and the hydraulic flat jacks are connected with a control console (8); the four groups of supporting pad beams are supported on the lower edge around the cross-shaped node of the high and large space section steel-concrete combined beam (9), and the main rib (10) of the combined beam penetrates through the cavity of the supporting pad beam; after the steel beams and the main reinforcements of the combined beam are assembled, a bottom template (11) is installed, and the high and large space groined section steel-concrete combined beam and the integral roof construction are carried out;
the steel pipe columns (1) are arranged on the tops of the reinforced concrete frame columns by adopting tower cranes, and the four groups of steel stand columns are firmly connected in parallel by adopting section steel;
four groups of vertical supporting plates (2) are welded at four-point positions of the outer wall of the top of the steel pipe column (1), the vertical supporting plates are flush with the top of the steel pipe column, the middle parts of the vertical supporting plates are fixed and reinforced by a hollow annular connecting plate (6), and each vertical supporting plate is provided with a vertical stiffening plate (7);
the method is characterized in that: the construction method comprises the following steps:
(1) installing a steel pipe column and a column top supporting plate: the steel pipe columns are installed on the tops of the reinforced concrete frame columns by adopting a tower crane, the four groups of steel pipe columns are firmly connected in a parallel mode by adopting section steel, four groups of vertical supporting plates are welded at four-point positions of the outer walls of the tops of the steel pipe columns, the vertical supporting plates are flush with the tops of the steel pipe columns, the middle parts of the vertical supporting plates are fixed and reinforced by adopting a hollow annular connecting plate, and each vertical supporting plate is provided with a vertical reinforcing plate;
(2) installing a column top circular cover plate: a round cover plate is welded at the top of the steel pipe column, the round cover plate is processed by a thick steel plate, and the bottom surface of the round cover plate is firmly welded with the steel pipe column and the vertical supporting plate;
(3) installing a hydraulic flat jack: four groups of hydraulic flat jacks are arranged on the circular cover plate, the periphery of the circular cover plate is limited and fixed by small triangular plates and is connected to a control console in parallel, and the control console intelligently and synchronously controls four hydraulic jacks to jack the bottom of the I-shaped steel beam, the steel pipe column rod piece and adjust the elevation, and a supporting system is convenient to unload;
(4) mounting a support pad beam: a supporting pad beam is arranged above the flat jack, and the flat jack and the supporting pad beam both correspond to the position of the vertical supporting plate below;
(5) installing the section steel-concrete combined beam: the section steel-concrete combined beam adopts an H-shaped steel beam and externally-wrapped reinforced concrete to form a high and large space 'well' -shaped section steel-concrete combined beam and an integral roof, and after the section steel-concrete combined beam is installed in place in a splitting manner, a hydraulic flat jack is adopted to be tightly propped against the steel pipe column at a node;
(6) and (3) construction of the main reinforcement of the profile steel-concrete composite beam: 2 layers of combined beam main reinforcements are arranged at the lower edge part of the profile steel-concrete combined beam, and are arranged in a longitudinal and transverse layered manner at the nodes of the profile steel-concrete combined beam, and the combined beam main reinforcements penetrate through the cavity of the support pad beam and do not interfere with the hollow support structure;
(7) construction of the section steel-concrete combined beam template: after the steel beam and the main reinforcement of the combined beam are assembled, a bottom template is arranged below the steel beam and the main reinforcement of the combined beam, and the high and large space groined section steel-concrete combined beam and the integral roof construction are carried out.
2. The construction method of the hollow support structure for the construction of the high-space combination beam is characterized in that the hydraulic flat jack (4) is used for jacking the bottom of the beam and the support rod pieces and facilitating the unloading of the support system, the bottom of the support beam is flush with the bottom of the section steel-concrete combination beam (9), and the hydraulic flat jack and the support beam correspond to the position of the vertical support plate (2) below.
3. The construction method of the hollow type supporting structure for the construction of the composite girder for the tall and big space according to claim 1, wherein the main reinforcement (10) of the composite girder passes through the cavity of the supporting bolster without interfering with the hollow type supporting structure.
4. The construction method of the hollow support structure for the construction of the high and large space combination beam as claimed in claim 1, wherein the vertical support plates (2) are arranged in four groups, each group comprises two, and trapezoidal section steel plates are adopted; the vertical supporting plate is fixed by a hollow annular connecting plate (6) in the annular direction.
5. The construction method of the hollow supporting structure for the construction of the combination beam in the tall space according to claim 1, wherein the periphery of the hydraulic flat jack (4) is limited and fixed by a small triangular plate and is connected in parallel with a control console (8); and the console synchronously controls the four hydraulic flattening flat jacks to jack the bottom of the I-shaped steel beam and the steel pipe column rod piece tightly and adjust the elevation.
6. The construction method of the hollow support structure for the construction of the composite girder in the tall space according to claim 1, wherein the section steel-concrete composite girder (9) is made of outer concrete, two layers of main reinforcements (10) of the composite girder are arranged at the lower edge part, and the section steel-concrete composite girder is arranged in layers in the longitudinal and transverse directions at the node of the section steel-concrete composite girder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011515380.4A CN112681512B (en) | 2020-12-21 | 2020-12-21 | Hollow support structure and method for construction of high and large space combination beam |
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| CN202011515380.4A CN112681512B (en) | 2020-12-21 | 2020-12-21 | Hollow support structure and method for construction of high and large space combination beam |
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| CN112681512B true CN112681512B (en) | 2022-09-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2009091873A (en) * | 2007-10-12 | 2009-04-30 | Takenaka Komuten Co Ltd | Batch filling method for grout material at joint part of precast reinforced concrete member, and filling tool |
| CN102587689B (en) * | 2012-03-31 | 2014-10-29 | 西安工业大学 | Repairing and strengthening method for existing reinforced concrete beam-column joints |
| CN102888991B (en) * | 2012-10-25 | 2014-04-09 | 南通大学 | Large-scale profile steel beam and concrete combined house roof constructing method |
| CN207846878U (en) * | 2017-12-26 | 2018-09-11 | 广西建工集团第四建筑工程有限责任公司 | Positioning set for the cast-in-place medium-sized girder steel of small bore girder with rolled steel section en cased in concrete |
| CN110106978A (en) * | 2019-05-20 | 2019-08-09 | 江南大学 | Half prefabricated reinforced concrete column node unit of one kind and its application |
| CN110195471A (en) * | 2019-05-20 | 2019-09-03 | 扬州大学 | The combination assembled frame joint of modularization steel-concrete |
| CN210316663U (en) * | 2019-07-15 | 2020-04-14 | 上海标架建筑科技有限公司 | Building structure pulls out post strutting arrangement |
| CN214330051U (en) * | 2020-12-21 | 2021-10-01 | 中交第四公路工程局有限公司 | Hollow supporting structure for construction of high and large space combination beam |
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