CN112854579A - Profiled steel sheet section steel supporting system and construction method - Google Patents
Profiled steel sheet section steel supporting system and construction method Download PDFInfo
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- CN112854579A CN112854579A CN202110234011.6A CN202110234011A CN112854579A CN 112854579 A CN112854579 A CN 112854579A CN 202110234011 A CN202110234011 A CN 202110234011A CN 112854579 A CN112854579 A CN 112854579A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 261
- 239000010959 steel Substances 0.000 title claims abstract description 261
- 238000010276 construction Methods 0.000 title claims abstract description 36
- 238000003466 welding Methods 0.000 claims description 18
- 239000002131 composite material Substances 0.000 abstract description 16
- 238000009434 installation Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
- E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
- E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of bridges, in particular to a profiled steel sheet type steel supporting system and a construction method; the support system is installed between the girder web, supports profiled sheet and pours the bridge floor slab concrete on profiled sheet through the support system, its characterized in that: the supporting system is composed of a plurality of transverse square steels and longitudinal square steels which are mutually installed, the two ends of each transverse square steel are connected between the girder top plate and the girder web plate through connecting plates, profiled steel plates are placed on the girder top plate and the longitudinal square steels, and bridge deck slab concrete is poured on the profiled steel plates. The profiled steel sheet section steel supporting system has the characteristics of simple structure, lightness, reliability, convenience in installation and the like, and can be widely applied to supporting structures of various profiled steel sheet composite slabs, effective support is provided for weaker profiled steel sheets while the material quantity and the construction measures are not greatly increased, and the structural performance of the profiled steel sheet composite bridge deck is ensured.
Description
Technical Field
The invention relates to the technical field of bridges, in particular to a profiled steel sheet type steel supporting system and a construction method.
Background
The profiled steel sheet is a profiled steel sheet formed by rolling and cold-bending a coated sheet or a plated sheet to form a corrugated section along the width direction of the sheet. The profiled steel sheet is widely applied to the fields of industrial and civil buildings and road and bridge engineering construction, the profiled steel sheet is thin, and the thickness of a common plate is 0.4-1.6 mm; the thickness of the composite material can reach 2-3 mm or more when the composite material is used for a load-bearing structure. The cross section of the profiled steel sheet commonly used in the existing profiled steel sheet combined bridge deck slab has two types of open type and closed type.
The profiled steel sheet can be used as a composite floor slab or a composite bridge deck slab by combining with concrete, the erection of a template is omitted, the profiled steel sheet has good structural performance as a load-bearing structure, and the profiled steel sheet is more applied to the composite structure. The combination effect between the profiled steel sheet and the concrete is realized mainly by the longitudinal shear strength along the stress direction of the sheet generated by the bonding effect between the profiled steel sheet and the concrete, the combination effect of the profiled steel sheet and the concrete plays the advantages of tensile strength of the steel sheet and compression strength of the concrete, and meanwhile, the section rigidity can be improved. In engineering practice, profiled steel sheets are often used as permanent formwork and as a safety reserve for the structure.
The profiled steel sheet combined bridge deck slab has the characteristics of high construction speed, material saving, light structure, attractive appearance and the like, particularly, when the profiled steel sheet combined bridge deck slab is used together with a steel box girder, the economic benefit is remarkable, the profiled steel sheet combined bridge deck slab is applied to the current engineering practice, but the design and construction of the combined bridge deck slab need to be within a reasonable span range, otherwise, the problems of overlarge deformation and easy cracking of the combined bridge deck slab can be caused.
Traditional profiled steel sheet is because it is less to set up the span to do not set up middle support system, perhaps bearing structure is too complicated, causes profiled steel sheet deformation too big or material waste easily, shortcoming such as loaded down with trivial details of construction. When the open profiled steel sheet is used as the bridge deck structure of the composite beam and the distance between the main beams is large, if an intermediate support system is not adopted, the whole post-cast concrete load cannot be borne by depending on the strength and rigidity of the profiled steel sheet, so that the concrete on the profiled steel sheet is usually cast twice in the engineering, and the rest of the second-stage concrete is cast when the strength of the first-stage concrete cast for the first time meets the design requirement. Although the construction method is feasible, the construction procedures are increased, the construction period is prolonged, and the construction quality assurance degree is obviously reduced.
Disclosure of Invention
In order to overcome the defects of the existing profiled steel plate installation, the invention provides a profiled steel plate section steel supporting system and a construction method, the profiled steel plate section steel supporting system has the characteristics of simple structure, lightness, reliability, convenience in installation and the like, the number of materials and constructional measures are not greatly increased, meanwhile, effective support is provided for a weaker profiled steel plate, the structural performance of a profiled steel plate combined bridge deck is ensured, the system can be widely applied to the supporting structure of various profiled steel plate combined plates, the application range of the profiled steel plate is expanded, the function of the profiled steel plate as a bottom die of a cast-in-place bridge deck is fully exerted, and the profiled steel plate section steel supporting system has good application prospect.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a profiled sheet shaped steel support system, the support system is installed between the girder web, supports the profiled sheet and pours bridge floor slab concrete 9 on the profiled sheet through the support system, the support system comprises a plurality of horizontal square steel 1 of mutual installation and vertical square steel 2, and the both ends of horizontal square steel 1 are passed through connecting plate 4 and are connected between girder roof 5 and girder web, place the profiled sheet on girder roof 5 and vertical square steel 2, pour bridge floor slab concrete 9 on the profiled sheet.
The horizontal square steel 1 and the vertical square steel 2 are connected through the saddle-shaped connecting plate 3 in a welding mode, the horizontal square steel 1 is welded at the opening of the saddle-shaped connecting plate 3, and the vertical square steel 2 is welded at the limb frames on the two sides of the saddle-shaped connecting plate 3 respectively.
And a rubber cushion block 7 is arranged on the saddle-shaped connecting plate 3, and the height of the rubber cushion block 7 after installation is the same as that of the longitudinal square steel 2.
Connecting plates 4 are welded at two ends of the transverse square steel 1 in a nested mode, and the transverse square steel 1, the girder top plate 5 and the girder web plate are welded and fixed through the connecting plates 4.
The profiled steel sheet includes an open profiled steel sheet 6-1 and a closed profiled steel sheet 6-2.
The girder web plates comprise girder wave web plates 8-1 and girder straight web plates 8-2.
A construction method of a profiled steel sheet type steel supporting system comprises the following steps:
s1, vertically welding the connecting plate 4 on the bottom surface of the girder top plate 5 and the side surface of the girder web plate;
s2, nesting and connecting the transverse square steel 1 to the connecting plates 4 on two sides and welding;
s3, sleeving the opening side of the saddle-shaped connecting plate 3 at the midspan position of the transverse square steel 1;
s4, repeating the steps, and arranging a plurality of transverse square steel 1 among the main beam top plates 5;
s5, welding the longitudinal square steel 2 on the saddle-shaped connecting plates 3 of two adjacent transverse square steels 1;
s6, mounting a rubber cushion block 7;
and S7, paving profiled steel plates between the girder top plates 5, and pouring the bridge deck plate concrete 9 on the profiled steel plates at one time.
The invention has the beneficial effects that:
1) the profiled steel sheet section steel supporting system provided by the invention has the advantages that the structure is simple, the stress is clear, the effective support is provided for a weaker profiled steel sheet while the material quantity and the construction measure are not greatly increased, and the structural performance of a profiled steel sheet combined plate is ensured.
2) The profiled steel sheet section steel support system provided by the invention is flexible and various in use form, can be widely applied to various profiled steel sheet combined bridge decks, comprises an open profiled steel sheet and a closed profiled steel sheet, can be changed into longitudinal support or transverse support according to the type and the stress direction of the profiled steel sheet, has good applicability and universality, is convenient to manufacture and reliable in connection due to the adoption of the profiled steel member, can reduce the cost, and can generate better economic and technical benefits.
3) The profiled steel sheet section steel supporting system and the construction method greatly simplify the construction process of the combined beam, enable the profiled steel sheet combined bridge deck to realize one-time pouring, and ensure the construction quality. In addition, the profiled steel sheet type steel support system has the advantages of less welding workload, light and convenient rod piece hoisting, simple assembly, less construction steps and high construction speed, and improves the assembly construction efficiency of the combined bridge.
Drawings
FIG. 1 is a perspective view of example 1 of the present invention;
FIG. 2 is a schematic cross-sectional view of example 1 of the present invention;
FIG. 3 is a schematic plan view of embodiment 1 of the present invention;
FIG. 4 is a schematic plan view of the junction of the intermediate supports according to embodiment 1 of the present invention;
FIG. 5 is a schematic elevation view of the intermediate support joint according to embodiment 1 of the present invention;
FIG. 6 is a sectional view of an open type profiled steel sheet assembled bridge deck according to example 1 of the present invention;
FIG. 7 is a schematic view showing a cross section and a connecting plate of section steel according to example 1 of the present invention;
FIG. 8 is a schematic cross-sectional view of example 2 of the present invention;
FIG. 9 is a schematic plan view of embodiment 2 of the present invention;
FIG. 10 is a sectional view of a closed-type profiled steel sheet assembled decking in example 2 of the present invention;
shown in the figure: 1. transverse square steel; 2. longitudinal square steel; 3. a saddle-shaped connecting plate; 4. a main beam connecting plate; 5. a main beam top plate; 6-1, opening type profiled steel sheet; 6-2. a closed profiled steel sheet; 7. a rubber cushion block; 8-1, main beam corrugated web; 8-2, a main beam straight web plate; 9. and (5) bridge deck concrete.
Detailed Description
The technical scheme of the invention is further explained by specific embodiments in the following with the accompanying drawings:
example 1
The invention provides a profiled steel sheet section steel supporting system and a construction method, and the embodiment comprises transverse square steel 1; longitudinal square steel 2; a saddle-shaped connecting plate 3; a main beam connecting plate 4; a main beam top plate 5; 6-1 of an open profiled steel sheet; a rubber cushion block 7; a girder wave web 8-1; bridge deck concrete 9; as shown in fig. 1-7.
The profiled steel sheet type steel support system and the construction method are suitable for steel-concrete composite structure bridges in a double-girder or multi-girder mode. In the embodiment, the corrugated web steel box composite beam with the span of 30m in a double-girder form is adopted, the distance between the two girders is 3.5m, the open profiled steel plate composite bridge deck is adopted between the girder boxes, the open profiled steel plates are transversely arranged, the bridge deck concrete is poured once after the girders are erected, and in order to solve the problem that the strength and the rigidity of the open profiled steel plates between the boxes are not enough to bear the wet weight of the once-poured concrete, the profiled steel plate steel support system is arranged between the boxes, so that the construction process is simplified, and the quality of the composite bridge deck is improved.
The main supporting structure of the profiled steel sheet type steel supporting system is a crisscross structure formed by a plurality of pieces of square steel 1 arranged transversely and a piece of square steel 2 arranged longitudinally and continuously.
The construction load transmitted to the open profiled steel sheet 6-1 by the concrete bridge deck 9 is directly borne by the longitudinal square steel 2, the top edge of the longitudinal square steel 2 is tightly attached to the bottom edge of the open profiled steel sheet 6-1, and the longitudinal square steel 2 is arranged at the midspan position of the open profiled steel sheet 6-1.
The longitudinal square steels 2 on two adjacent sides are lapped on the transverse square steel 1 through the saddle-shaped connecting plates 3, the lapping length is 50mm, and one side of the opening of each saddle-shaped connecting plate 3 is sleeved on the transverse square steel 1 and is arranged at the midspan position of the transverse square steel 1.
Wherein, the longitudinal square steel 2 is rectangular section steel, the height is 120mm, the width is 80mm, the wall thickness is 6mm, and the length is 2260 mm; the height of the transverse square steel 1 is 100mm, the width is 100mm, the wall thickness is 6mm, and the arrangement distance of the transverse square steel 1 in the transverse bridge direction is 2400 mm.
Wherein the width of the opening of the saddle-shaped connecting plate 3 is 100mm, the height is 90mm, the width of the extending limb is 60mm, and the plate thickness is 10 mm; the inner diameter of the saddle-shaped connecting plate 3 is consistent with the outer diameter of the transverse square steel 1, so that the saddle-shaped connecting plate 3 can be tightly attached to the transverse square steel 1 and welded with the transverse square steel 1.
The saddle-shaped connecting plates 3 are cast steel members and can be uniformly customized in a factory according to specified sizes.
This embodiment horizontal square steel 1 of profiled sheet shaped steel support system relies on girder connecting plate 4 to weld on both sides girder roof 5, girder connecting plate 4 vertical welding is in the bottom of girder roof 5, horizontal square steel 1 is at the tip cutting opening, makes girder connecting plate 4 insert in horizontal square steel 1 and weld with it.
The main beam connecting plate 4 is formed by cutting one corner of a rectangular steel plate, is 200mm high and 150mm wide, is 10mm thick, and the top edge and the side edge of the main beam connecting plate 4 are vertically welded on a main beam top plate 5 and a main beam corrugated web 8-1 of the corrugated web steel box main beam.
The vertical square steel 2 and the horizontal square steel 1 of the profiled steel sheet type steel support system are different in height, a gap is formed at the junction of the two spans, and a rubber cushion block 7 with the same height as the gap is adhered at the gap between the two adjacent vertical square steels 2.
The length of the rubber cushion block 7 is 140mm, the width of the rubber cushion block is 80mm which is the same as the width of the longitudinal square steel 2, the thickness of the rubber cushion block is 20mm, and after the rubber cushion block 7 is installed at the notch, the top edges of the longitudinal square steel 2 are the same in height, so that a continuous supporting structure is formed.
The construction method of the profiled steel sheet type steel support system in the embodiment comprises the following steps:
1. vertically welding a main beam connecting plate on the bottom surface of a main beam top plate and the side surface of a main beam corrugated web plate;
2. hoisting the transverse square steel 1, inserting the transverse square steel 1 with the end part cut with the notch into the main beam connecting plates 4 on the two sides of the main beam, and welding the transverse square steel 1 with the main beam connecting plates 4 after positioning;
3. sleeving one side of an opening of the saddle-shaped connecting plate 3 at the midspan position of the transverse square steel 1, and welding the opening with the transverse square steel;
4. repeating the steps and arranging a plurality of transverse square steel 1 among the main beams according to a specified interval;
5. overlapping the longitudinal square steel 2 on the saddle-shaped connecting plates 3 of two adjacent transverse square steels 1 and welding the longitudinal square steel with the saddle-shaped connecting plates;
6. installing a rubber cushion block 7 at the middle support;
7. paving an inter-box opening profiled steel sheet 6-1 between the main beam top plates 5, and pouring the bridge deck slab concrete 9 on the opening profiled steel sheet 6-1 at one time to complete the profiled steel sheet combined bridge deck slab construction.
Example 2
The invention provides a profiled steel sheet section steel supporting system and a construction method, and the embodiment comprises transverse square steel 1; longitudinal square steel 2; a saddle-shaped connecting plate 3; a main beam connecting plate 4; a main beam top plate 5; 6-2 parts of a closed profiled steel sheet; a rubber cushion block 7; a main beam straight web plate 8-2; bridge deck concrete 9; as shown in FIGS. 8 to 10.
The profiled steel sheet type steel support system and the construction method are suitable for steel-concrete composite structure bridges in a double-girder or multi-girder mode. In this embodiment, a steel box composite beam with a span of 40m in a double-girder form is adopted, the distance between two girders is 7.5m, a closed profiled steel plate composite bridge deck is adopted between the girder boxes, the closed profiled steel plates are transversely arranged, the bridge deck slab concrete needs to be poured once after the girders are erected, and in order to solve the problem that the strength and the rigidity of the closed profiled steel plates between the boxes are not enough to bear the wet weight of the once-poured concrete, the profiled steel plate section steel support system is arranged between the boxes, so that the construction process is simplified, and the construction quality of the composite bridge deck is improved.
The main supporting structure of the profiled steel sheet type steel supporting system is a groined-shaped cross structure formed by a plurality of transverse square steels 1 and two longitudinal continuous square steels 2.
Wherein, two vertical square steels 2 set up the three minutes punishment departments at horizontal square steel 1 between the case, provide two continuous supports for the closed die mould profiled sheet.
Wherein, the longitudinal square steel 2 directly bears the construction load which is transmitted to the closed profiled steel sheet 6-2 by the concrete bridge deck 9, the top edge of the longitudinal square steel 2 is tightly attached to the bottom edge of the closed profiled steel sheet 6-2, and the transverse distance between the two longitudinal square steels 2 is 2.5 m.
Wherein, the vertical square steel 2 of adjacent both sides passes through 3 overlap joints of saddle-shaped connecting plate on horizontal square steel 1, and overlap joint length is 50mm, and 3 opening one sides of saddle-shaped connecting plate cover are on horizontal square steel 1 to place in the third of horizontal square steel 1 position.
Wherein, the longitudinal square steel 2 is rectangular section steel, the height is 170mm, the width is 80mm, the wall thickness is 6mm, and the length is 2260 mm; the height of the transverse square steel 1 is 150mm, the width is 100mm, the wall thickness is 10mm, and the arrangement distance of the transverse square steel 1 in the transverse bridge direction is 2400 mm.
Wherein the width of the opening of the saddle-shaped connecting plate 3 is 100mm, the height is 160mm, the width of the extending limb is 60mm, and the plate thickness is 10 mm; the inner diameter of the saddle-shaped connecting plate 3 is consistent with the outer diameter of the transverse square steel 1, so that the saddle-shaped connecting plate 3 can be tightly attached to the transverse square steel 1 and welded with the transverse square steel 1.
The saddle-shaped connecting plates 3 are cast steel members and can be uniformly customized in a factory according to specified sizes.
This embodiment horizontal square steel 1 of profiled sheet shaped steel support system relies on girder connecting plate 4 to weld on both sides girder roof 5, girder connecting plate 4 vertical welding is in the bottom of girder roof 5, horizontal square steel 1 is at the tip cutting opening, makes girder connecting plate 4 insert in horizontal square steel 1 and weld with it.
The main beam connecting plate 4 is formed by cutting one corner of a rectangular steel plate, is 300mm high and 200mm wide, is 20mm thick, and is vertically welded on a main beam top plate 5 and a main beam straight web plate 8-2 of the steel box main beam at the top edge and the side edge of the main beam connecting plate 4.
The vertical square steel 2 and the horizontal square steel 1 of the profiled steel sheet type steel support system are different in height, a gap is formed at the junction of the two spans, and a rubber cushion block 7 with the same height as the gap is adhered at the gap between the two adjacent vertical square steels 2.
Wherein, the length of rubber cushion 7 is 190mm, and the width is 80mm with vertical square steel 2 is the same wide, and thickness is 20mm, makes vertical square steel 2 apical margin the same height behind the breach department installation rubber cushion 7, forms continuous support structure.
The construction method of the profiled steel sheet type steel support system in the embodiment comprises the following steps:
1. welding a main beam connecting plate 4 on the bottom surface of a main beam top plate 5 and the side surface of a main beam straight web plate 8-2;
2. hoisting the transverse square steel 1, inserting the transverse square steel 1 with the end part cut with the notch into the main beam connecting plates 4 on the two sides of the main beam, and welding the transverse square steel 1 with the main beam connecting plates 4 after positioning;
3. sleeving one side of an opening of the saddle-shaped connecting plate 3 at the midspan position of the transverse square steel 1, and welding the opening with the transverse square steel;
4. repeating the steps and arranging a plurality of transverse square steel 1 among the main beams according to a specified interval;
5. overlapping the longitudinal square steel 2 on the saddle-shaped connecting plates 3 of two adjacent transverse square steels 1 and welding the longitudinal square steel with the saddle-shaped connecting plates;
6. installing rubber cushion blocks 7 at the intersection supporting positions of the longitudinal and transverse square steels;
7. and paving an inter-box closed profiled steel sheet 6-2 between the main beam top plates 5, and pouring bridge deck slab concrete 9 on the closed profiled steel sheet 6-2 at one time to complete the profiled steel sheet combined bridge deck slab construction.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a profiled sheet shaped steel braced system, the braced system is installed between the girder web, supports profiled sheet and pours the bridge floor slab concrete on profiled sheet through the braced system, its characterized in that: the supporting system is composed of a plurality of transverse square steels and longitudinal square steels which are mutually installed, the two ends of each transverse square steel are connected between the girder top plate and the girder web plate through connecting plates, profiled steel plates are placed on the girder top plate and the longitudinal square steels, and bridge deck slab concrete is poured on the profiled steel plates.
2. A profiled steel sheet steel support system as claimed in claim 1 wherein: the horizontal square steel and the longitudinal square steel are connected through the saddle-shaped connecting plate in a welded mode, the horizontal square steel is welded at the opening of the saddle-shaped connecting plate, and the longitudinal square steel is welded at the limb frames on the two sides of the saddle-shaped connecting plate.
3. A profiled steel sheet steel support system as claimed in claim 2 wherein: and the saddle-shaped connecting plate is provided with a rubber cushion block, and the height of the installed rubber cushion block is the same as that of the longitudinal square steel.
4. A profiled steel sheet steel support system as claimed in claim 1 or claim 2 wherein: connecting plates are welded at two ends of the transverse square steel in a nested mode, and the transverse square steel, the girder top plate and the girder web plate are welded and fixed through the connecting plates.
5. A profiled steel sheet steel support system as claimed in claim 1 wherein: the profiled steel sheet includes an open-type profiled steel sheet and a closed-type profiled steel sheet.
6. A profiled steel sheet steel support system as claimed in claim 1 wherein: the girder web plate comprises a girder wave web plate and a girder straight web plate.
7. A construction method of a profiled steel sheet type steel support system as claimed in claims 1 to 6, characterized by comprising the steps of:
s1, vertically welding the connecting plate on the bottom surface of the girder top plate and the side surface of the girder web plate;
s2, nesting and connecting the transverse square steel to the connecting plates on the two sides and welding;
s3, sleeving one side of the opening of the saddle-shaped connecting plate at the midspan position of the transverse square steel;
s4, repeating the steps and arranging a plurality of transverse square steels among the top plates of the main beams;
s5, welding the longitudinal square steel on the saddle-shaped connecting plates of two adjacent transverse square steels;
s6, mounting a rubber cushion block;
and S7, paving the profiled steel plates between the top plates of the main beams, and pouring the bridge deck concrete on the profiled steel plates at one time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110234011.6A CN112854579B (en) | 2021-03-03 | 2021-03-03 | A corrugated steel plate profile support system and construction method |
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| CN202110234011.6A CN112854579B (en) | 2021-03-03 | 2021-03-03 | A corrugated steel plate profile support system and construction method |
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| CN112854579A true CN112854579A (en) | 2021-05-28 |
| CN112854579B CN112854579B (en) | 2025-01-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115142429A (en) * | 2022-06-15 | 2022-10-04 | 鞍山三冶建筑工程有限公司 | A structure and construction method of foundation pit support baffle based on BIM technology |
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| CN103711244A (en) * | 2013-12-30 | 2014-04-09 | 中国十七冶集团有限公司 | Double-layer all-steel structure floor slab embedded with steel channel beam |
| US20190316305A1 (en) * | 2018-04-11 | 2019-10-17 | Vellaisamy THAVAMANI PANDI | System for construction of composite u shaped reinforced girders bridge deck and methods thereof |
| CN109457590A (en) * | 2018-12-21 | 2019-03-12 | 兰州交通大学 | A kind of no templating assembled Wavelike steel webplate steel-mixes composite beam bridge and construction method |
| CN215054423U (en) * | 2021-03-03 | 2021-12-07 | 甘肃省交通规划勘察设计院股份有限公司 | Profiled steel sheet section steel support system |
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| CN115142429A (en) * | 2022-06-15 | 2022-10-04 | 鞍山三冶建筑工程有限公司 | A structure and construction method of foundation pit support baffle based on BIM technology |
| CN115142429B (en) * | 2022-06-15 | 2024-03-01 | 鞍山三冶建筑工程有限公司 | Foundation pit supporting baffle structure based on BIM technology and construction method |
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