CN117822410A - Steel-concrete combined diaphragm beam structure with transversely connected T beams and construction method - Google Patents
Steel-concrete combined diaphragm beam structure with transversely connected T beams and construction method Download PDFInfo
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- CN117822410A CN117822410A CN202410239952.2A CN202410239952A CN117822410A CN 117822410 A CN117822410 A CN 117822410A CN 202410239952 A CN202410239952 A CN 202410239952A CN 117822410 A CN117822410 A CN 117822410A
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- 239000004567 concrete Substances 0.000 title claims abstract description 152
- 238000010276 construction Methods 0.000 title claims abstract description 39
- 238000003466 welding Methods 0.000 claims abstract description 167
- 229910000831 Steel Inorganic materials 0.000 claims description 40
- 239000010959 steel Substances 0.000 claims description 40
- 239000002131 composite material Substances 0.000 claims description 19
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 13
- 239000003351 stiffener Substances 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 238000011065 in-situ storage Methods 0.000 description 4
- 238000009415 formwork Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention relates to the technical field of bridge assembly construction. The steel-concrete combined diaphragm beam structure with the transverse connection of a plurality of T beams comprises a first main beam and a second main beam, wherein the first main beam and the second main beam are oppositely arranged at intervals; a first concrete slab and a second concrete slab; a first welding plate and a second welding plate, each having a free end and a fixed end; a third fixing assembly for fixing the free ends of the first and second welding plates; wherein the first concrete slab and the first main beam are cast together to form a whole, and the second concrete slab and the second main beam are cast together to form a whole; and, the fixed end of the first welding plate is buried in the first concrete slab, and the fixed end of the second welding plate is buried in the second concrete slab. The method has the advantages of light dead weight, convenience in construction and the like, and can effectively improve the construction speed and the construction quality of the assembled beam bridge.
Description
Technical Field
The invention relates to the technical field of bridge assembly construction, in particular to a steel-concrete combined diaphragm beam structure with a plurality of T beams transversely connected and a construction method.
Background
The prefabricated reinforced concrete structure has become a great trend of the current bridge building construction due to the advantages of quick construction period, high construction quality, small environmental pollution and the like. The diaphragm beam is used as an important structure in the assembled concrete beam bridge, and has a great effect on strengthening the transverse connection of the main beam and ensuring the integrity of the structure.
However, the cast-in-situ diaphragm beam has the problems of high construction difficulty, long construction period, difficult guarantee of construction quality and the like.
Therefore, a steel-concrete combined diaphragm beam structure with a plurality of T beams transversely connected and a construction method are needed to solve the problems of high construction difficulty, long construction period, difficult guarantee of construction quality and the like.
Disclosure of Invention
The invention provides a steel-concrete combined diaphragm beam structure with a plurality of T beams transversely connected and a construction method, which are used for solving the problems of large self weight, high construction difficulty and low construction speed of the traditional concrete diaphragm beam.
The first aspect of the invention provides a steel-concrete combined diaphragm beam structure with a plurality of T beams transversely connected, comprising:
the first main beam and the second main beam are arranged at intervals relatively;
a first concrete slab and a second concrete slab;
a first welding plate and a second welding plate, each having a free end and a fixed end;
a third fixing assembly for fixing the free ends of the first and second welding plates; wherein,
the first concrete slab and the first main beam are cast together to form a whole, and the second concrete slab and the second main beam are cast together to form a whole; and, the fixed end of the first welding plate is buried in the first concrete slab, and the fixed end of the second welding plate is buried in the second concrete slab.
In some implementations, the system further includes a first securing assembly and a second securing assembly;
the first fixing component is arranged at the fixed end of the first welding plate, and the first fixing component and the fixed end of the first welding plate are buried in the first concrete slab together;
the second fixing component is arranged at the fixed end of the second welding plate, and the second fixing component and the fixed end of the second welding plate are buried in the second concrete slab together.
In some embodiments, the first and second securing assemblies each include a stiffener, a peg, and a transverse rebar;
the stiffening ribs are arranged on two opposite sides of the fixed end of the first welding plate and two opposite sides of the fixed end of the second welding plate respectively;
the number of the studs is a plurality, the studs are arranged on the surface of the first welding plate between the stiffening rib and the end face of the fixed end of the first welding plate, and the surface of the second welding plate is arranged between the stiffening rib and the end face of the fixed end of the second welding plate; wherein,
and a plurality of reinforcing steel bar holes are formed in the stiffening rib, so that the first fixing assembly and the second fixing assembly are respectively and correspondingly buried in the first concrete slab and the second concrete slab, and the transverse reinforcing steel bars penetrate through the reinforcing steel bar holes.
In some embodiments, the rebar holes are perpendicular to the pegs and staggered.
In some embodiments, the first and second welding plates are welded i-steel plates.
In some implementations, the third securing assembly includes a first flange plate splice plate and a second flange plate splice plate and a bolt;
the flange plates at the top and the bottom of the free end of the first welding plate, and the flange plates at the top and the bottom of the free end of the second welding plate are spliced:
the outer surface of the top splicing part is provided with the first flange plate splice plate, and the inner surface is provided with the second flange plate splice plate and is fixed through the bolts;
the outer surface of bottom concatenation department is provided with first flange board splice plate, the internal surface is provided with second flange board splice plate, and pass through the bolt fastening.
In some implementations, the third securing assembly further includes a web splice plate;
the web of the free end of the first welded plate and the web of the free end of the second welded plate, in the case of splicing:
the web splice plates are arranged on two sides of the web of the first welding plate and the web of the second welding plate and are fixed through the bolts.
In some embodiments, the first main beam and the second main beam flange plate are connected by a concrete wet joint.
In some embodiments, the first main beam and the second main beam are each of a T-shaped configuration;
the web centers of the adjacent sides of the first girder and the second girder are correspondingly provided with the first concrete slab and the second concrete slab from top to bottom.
The second aspect of the invention provides a construction method of a steel-concrete combined diaphragm beam transversely connected with a plurality of T beams, which is applied to the steel-concrete combined diaphragm beam structure transversely connected with the T beams, and comprises the following steps:
manufacturing a first welding plate, a second welding plate and a third fixing assembly;
before pouring, pre-assembling the first welding plate, the second welding plate and the third fixing assembly;
placing the first welding plate, the second welding plate and the third fixing assembly after the pre-assembly is completed in a template, and then pouring concrete in the template to prepare a first main beam, a second main beam, a first concrete slab and a second concrete slab;
after the concrete curing is finished, disassembling the first welding plate, the second welding plate and the third fixing assembly, and numbering the first welding plate, the second welding plate and the third fixing assembly;
and conveying the first main beam and the second main beam to a construction site, and selecting the third fixing assembly matched with the first welding plate and the second welding plate to be connected according to the number.
The invention has the beneficial effects that:
the invention provides a steel-concrete combined diaphragm beam structure with a plurality of T beams transversely connected and a construction method, wherein in the steel-concrete combined diaphragm beam structure with the plurality of T beams transversely connected, the first main beams and the second main beams are arranged at opposite intervals; the first concrete slab and the first main beam are cast together to form a whole, and the second concrete slab and the second main beam are cast together to form a whole; and, the fixed end of the first welding plate is buried in the first concrete slab, and the fixed end of the second welding plate is buried in the second concrete slab. In addition, a first welding plate and a second welding plate, each having a free end and a fixed end; and utilizing a third fixing component for fixing the free ends of the first welding plate and the second welding plate. The method has the advantages of light dead weight, convenience in construction and the like, avoids complex procedures of traditional concrete diaphragm beam formwork cast-in-situ, and can effectively improve the construction speed and the construction quality of the fabricated beam bridge.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a steel-concrete composite diaphragm beam structure with multiple transverse T-beams connected;
FIG. 2 is a perspective view of a steel-concrete composite diaphragm beam structure with multiple T beams transversely connected according to the present invention;
FIG. 3 is a schematic diagram of a splicing structure of a first welded I-steel and a second welded I-steel of a steel-concrete composite diaphragm beam structure with a plurality of T beams transversely connected;
FIG. 4 is a schematic view of a first welded I-beam and a second welded I-beam of a steel-concrete composite beam structure with multiple T-beams laterally connected according to the present invention;
FIG. 5 is a schematic view of a splice plate arrangement of a steel-concrete composite spreader structure with multiple T-beams laterally joined in accordance with the present invention;
fig. 6 is a schematic structural view of a first main beam and a first concrete slab, and a second main beam and a second concrete slab of a steel-concrete composite diaphragm beam structure with multiple T-beams laterally connected according to the present invention.
Reference numerals illustrate:
1. a first main beam; 2. a first concrete slab; 3. a second concrete slab; 4. a bolt; 5. a first flange plate splice plate; 6. first welding I-steel; 7. web splice plates; 8. a concrete wet joint; 9. reinforcing steel bars; 10. stiffening ribs; 11. a reinforcing bar hole; 12. bolt holes; 13. a second main beam; 14. second welding I-steel; 15. a peg; 16. and a second flange plate splice plate.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 6, a first aspect of the present invention provides a steel-concrete composite transverse beam structure in which a plurality of T-beams are transversely connected, comprising a first main beam 1, a second main beam 13, a first concrete slab 2, a second concrete slab 3, a first welding plate, a second welding plate, and a third fixing assembly.
The first main beam 1 and the second main beam 13 are arranged at opposite intervals, and specifically, the first main beam 1 and the second main beam 13 are of T-shaped structures; the web centers of the adjacent sides of the first girder 1 and the second girder 13 are correspondingly provided with the first concrete slab 2 and the second concrete slab 3 from top to bottom. That is, the first concrete slab 2 and the second concrete slab 3 correspond at the centers of the first girder 1 and the second girder 13.
Further, the flange plates of the first girder 1 and the second girder 13 are connected through the concrete wet joint 8, so that gaps between the first girder 1 and the second girder 13 are filled.
The first girder 1, the second girder 13, the first concrete slab 2 and the second concrete slab 3 are all formed by concrete, the first concrete slab 2 and the first girder 1 are cast together to form a whole, the second concrete slab 3 and the second girder 13 are cast together to form a whole, that is, a mould is constructed according to the shapes of the first girder 1 and the first concrete slab 2, then the second concrete slab 3 and the second girder 13 are cast together to form a whole by casting concrete in the mould, the second girder 13 and the second concrete slab 3 are manufactured by adopting the same method, and in addition, the first girder 1 and the first concrete slab 2 are mirrored on the second girder 13 and the second concrete slab 3, so that the first girder 1 and the second girder 13 are spliced.
The first welding plate and the second welding plate are provided with a free end and a fixed end, namely one end of the first welding plate is the free end, and the other end of the first welding plate is the fixed end; the second welding plate and the first welding plate have the same structure and are not repeated. Specifically, the first welding plate and the second welding plate are both welding i-steel plates, that is, the first welding plate is the first welding i-steel 6, and the second welding plate is the second welding i-steel 14. When the first welding plate and the second welding plate are welding wage steel plates, the top and the bottom of the first welding plate are flange plates, and the middle of the first welding plate is a web plate.
And the third fixing assembly is used for fixing the free ends of the first welding plate and the second welding plate, namely, the first welding plate and the second welding plate can be fixed by the third fixing assembly. Specifically, the third securing assembly includes first and second flange plate splice plates 5, 16 and bolts 4. When the flange plates at the top and the bottom of the free end of the first welding plate and the flange plates at the top and the bottom of the free end of the second welding plate are spliced: the outer surface of the top splice is provided with the first flange plate splice plate 5, the inner surface is provided with the second flange plate splice plate 16, and the first flange plate splice plate and the second flange plate splice plate are fixed through the bolts 4; the outer surface of bottom concatenation department is provided with first flange board splice plate 5, the internal surface is provided with second flange board splice plate 16, and pass through bolt 4 is fixed. That is, the first and second flange plate splice plates 5 and 16 are disposed opposite to each other at the top and bottom of the free end, and the bolts 4 are sequentially passed through the first and second flange plate splice plates 5 and 16 to complete the fixation.
In addition, the third fastening assembly also includes a web splice 7. The web splice plate 7 is used for fixing the adjacent sides of the first and second welded plates, specifically, the web of the free end of the first welded plate and the web of the free end of the second welded plate in the case of splicing: the web splice plates 7 are arranged on two sides of the web of the first welding plate and the web of the second welding plate, and are fixed through the bolts 4.
In some embodiments, a multi-piece T-beam laterally attached steel-concrete composite diaphragm beam structure further includes a first securing assembly and a second securing assembly.
The first fixing component is arranged at the fixed end of the first welding plate, and the first fixing component and the fixed end of the first welding plate are buried in the first concrete slab 2 together.
The second fixing component is arranged at the fixed end of the second welding plate, and the second fixing component and the fixed end of the second welding plate are buried in the second concrete plate 3 together.
The first and second fastening assemblies are utilized to increase the securement of the first and second weld plates within the first and second concrete panels 2, 3.
Specifically, the first and second fixing assemblies each include a stiffener 10, a peg 15 and a transverse bar 9.
The stiffening ribs 10 are arranged on two opposite sides of the fixed end of the first welding plate and two opposite sides of the fixed end of the second welding plate respectively.
The number of the pegs 15 is plural, and plural of the pegs 15 are provided on the first welding plate surface between the stiffener 10 and the end face of the fixed end of the first welding plate, and on the second welding plate surface between the stiffener 10 and the end face of the fixed end of the second welding plate.
Wherein, the stiffening rib 10 is provided with a plurality of reinforcing bar holes 11, so that the first fixing component and the second fixing component are respectively embedded in the first concrete slab 2 and the second concrete slab 3, and the transverse reinforcing bars 9 pass through the reinforcing bar holes 11. Thus, when the first fixing component and the second fixing component are embedded in the first concrete slab 2 and the second concrete slab 3 respectively with the first welding plate and the second welding plate, the transverse reinforcing steel bars 9 pass through the reinforcing steel bar holes 11 and then remain in the first concrete slab 2 and the second concrete slab 3, so that the firmness between the first welding plate and the second welding plate and between the first concrete slab 2 and the second concrete slab 3 is improved.
The rebar holes 11 are perpendicular to the studs 15 and are staggered, so that when the transverse rebar 9 passes through the rebar holes 11, the transverse rebar does not interfere with the studs 15, but a staggered structure is formed in the first concrete slab 2 and the second concrete slab 3, and the staggered structure forms two vertical resistances in the first concrete slab 2 and the second concrete slab 3 so as to prevent the first welding plate and the second welding plate from being separated from the first concrete slab 2 and the second concrete slab 3, thereby improving the firmness.
Example 1
As shown in fig. 1-6, the steel-concrete combined diaphragm beam structure with transversely connected T beams comprises a first main beam 1 and a second main beam 13, wherein a first concrete slab 2, a second concrete slab 3, a first welding i-steel 6, a second welding i-steel 14, a web splice plate 7, a first flange plate splice plate 5, a second flange plate splice plate 16 and a high-strength bolt 4 are arranged between the two main beams, and the first welding i-steel 6, the second welding i-steel 14, the first concrete slab 2 and the second concrete slab 3 form a main body part in the steel-concrete combined diaphragm beam. The first concrete slab 2 and the second concrete slab 3 need to be cast together with the first girder 1 and the second girder 13 to form a whole. The first welding I-steel 6 and the second welding I-steel 14 are provided with stiffening ribs 10, bolts 15 and reinforcing steel bar holes 11, and the stiffening ribs 10, the bolts 15 and the reinforcing steel bar holes 11 need to be pre-buried in the first concrete slab 2 and the second concrete slab 3. When the first welding I-steel 6 and the second welding I-steel 14 are respectively embedded into the first concrete slab 2 and the second concrete slab 3, transverse steel bars 9 are arranged to pass through steel bar holes 11 in the stiffening ribs 10. Bolt holes 12 are reserved on the first welding I-steel 6 and the second welding I-steel 14, web plates of the first welding I-steel 6 and the second welding I-steel 14 are connected with the bolts 4 through web plate splice plates 7, and flange plates of the first welding I-steel 6 and the second welding I-steel 14 are connected with the second flange plate splice plates 16, the second flange plate splice plates 16 and the bolts 4. The flange plates of the first girder 1 and the second girder 13 are connected by adopting a concrete wet joint 8. When the first welding I-steel 6 and the second welding I-steel 14 are respectively embedded into the first concrete slab 2 and the second concrete slab 3, the embedded parts of the first concrete slab 2 and the second concrete slab 3 are reinforced by arranging the stiffening ribs 10, the reinforcing steel bar holes 11, the transverse reinforcing steel bars 9 and the bolts 15.
In summary, in the steel-concrete combined diaphragm structure with multiple transverse T beams, the first concrete slab 2 and the first main beam 1 are cast together to form a whole, and the second concrete slab 3 and the second main beam 13 are cast together to form a whole; the fixed end of the first welding plate is embedded in the first concrete slab 2, and the fixed end of the second welding plate is embedded in the second concrete slab 3. As a novel beam bridge transverse connecting member, the weight dead weight is reduced by utilizing the first welding plate and the second welding plate, the beam bridge transverse connecting member can be prefabricated, the construction convenience is improved, the firmness is improved, the complex procedure of cast-in-situ of the traditional concrete diaphragm beam formwork is avoided, and the construction speed and the construction quality of the assembled beam bridge can be effectively improved.
Based on the steel-concrete combined diaphragm beam structure with the transverse connection of the plurality of T beams provided by the first aspect of the invention, the second aspect of the invention provides a construction method of the steel-concrete combined diaphragm beam with the transverse connection of the plurality of T beams.
The construction method comprises the following steps:
and manufacturing a first welding plate, a second welding plate and a third fixing assembly.
Before pouring, the first welding plate, the second welding plate and the third fixing assembly are preassembled.
Placing the first welding plate, the second welding plate and the third fixing assembly after the pre-assembly is completed in a template, and then pouring concrete in the template to prepare a first main beam 1, a second main beam 13, a first concrete slab 2 and a second concrete slab 3.
After the concrete curing is finished, the first welding plate, the second welding plate and the third fixing assembly are disassembled, and the first welding plate, the second welding plate and the third fixing assembly are numbered.
And conveying the first main beam 1 and the second main beam 13 to a construction site, and selecting the third fixing assembly matched with the first welding plate and the second welding plate for connection according to the number.
On the basis of the construction method, the steel-concrete combined diaphragm beam structure with a plurality of transversely connected T beams is combined, and the construction method comprises the following steps:
the first step: a first welding i-beam 6, a second welding i-beam 14, a web splice 7, a first flange plate splice 5 and a second flange plate splice 16 are manufactured.
And a second step of: the web of the first welding I-steel 6 and the second welding I-steel 14 is provided with a stiffening rib 10 and a peg 15, and a reinforcing bar hole 11 is reserved at the stiffening rib 10.
And a third step of: and according to the designed positions of the bolt holes 12, finishing the machining of the bolt holes 12 at the corresponding positions of the first welding I-steel 6, the second welding I-steel 14, the web splice plate 7, the first flange plate splice plate 5 and the second flange plate splice plate 16 in a factory.
Fourth step: before pouring, the first welding I-steel 6, the second welding I-steel 14, the web splice plate 7, the first flange plate splice plate 5 and the second flange plate splice plate 16 are preassembled in a factory.
Fifth step: and placing the first welding I-steel 6, the second welding I-steel 14, the web splice plate 7, the first flange plate splice plate 5 and the second flange plate splice plate 16 which are subjected to pre-assembly in a formwork, and then pouring the first girder 1, the second girder 13, the first concrete slab 2 and the second concrete slab 3.
Sixth step: after the concrete curing is finished, the first welding I-steel 6, the second welding I-steel 14, the web splice plate 7, the first flange plate splice plate 5 and the second flange plate splice plate 16 are disassembled, and the web splice plate 7, the first flange plate splice plate 5 and the second flange plate splice plate 16 are numbered for subsequent assembly.
Seventh step: the first girder 1 and the second girder 13 are transported to a construction site, and a web splice plate 7, a first flange plate splice plate 5 and a second flange plate splice plate 16 which are matched with the first welding I-steel 6 and the second welding I-steel 14 are selected and connected by adopting high-strength bolts 4.
Eighth step: and pouring concrete at the wet joint in situ to complete the assembly construction of the steel-concrete combined diaphragm beam.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. A steel-concrete composite diaphragm beam structure with a plurality of T beams transversely connected, comprising:
the first main beam and the second main beam are arranged at intervals relatively;
a first concrete slab and a second concrete slab;
a first welding plate and a second welding plate, each having a free end and a fixed end;
a third fixing assembly for fixing the free ends of the first and second welding plates; wherein,
the first concrete slab and the first main beam are cast together to form a whole, and the second concrete slab and the second main beam are cast together to form a whole; and, the fixed end of the first welding plate is buried in the first concrete slab, and the fixed end of the second welding plate is buried in the second concrete slab.
2. The multi-T beam laterally attached steel-concrete composite spreader structure of claim 1, further comprising a first securing assembly and a second securing assembly;
the first fixing component is arranged at the fixed end of the first welding plate, and the first fixing component and the fixed end of the first welding plate are buried in the first concrete slab together;
the second fixing component is arranged at the fixed end of the second welding plate, and the second fixing component and the fixed end of the second welding plate are buried in the second concrete slab together.
3. The multi-T beam laterally attached steel-concrete composite spreader structure of claim 2, wherein the first and second securing assemblies each comprise stiffeners, studs, and transverse rebar;
the stiffening ribs are arranged on two opposite sides of the fixed end of the first welding plate and two opposite sides of the fixed end of the second welding plate respectively;
the number of the studs is a plurality, the studs are arranged on the surface of the first welding plate between the stiffening rib and the end face of the fixed end of the first welding plate, and the surface of the second welding plate is arranged between the stiffening rib and the end face of the fixed end of the second welding plate; wherein,
and a plurality of reinforcing steel bar holes are formed in the stiffening rib, so that the first fixing assembly and the second fixing assembly are respectively and correspondingly buried in the first concrete slab and the second concrete slab, and the transverse reinforcing steel bars penetrate through the reinforcing steel bar holes.
4. A multi-T beam laterally attached steel-concrete composite spreader structure according to claim 3, wherein the rebar holes are perpendicular to the pegs and staggered.
5. The multi-T beam laterally attached steel-concrete composite beam structure of claim 1, wherein the first and second welding plates are welded i-steel plates.
6. The multi-T beam laterally attached steel-concrete composite spreader structure of claim 5, wherein the third securing assembly comprises a first flange plate splice plate and a second flange plate splice plate and bolts;
the flange plates at the top and the bottom of the free end of the first welding plate, and the flange plates at the top and the bottom of the free end of the second welding plate are spliced:
the outer surface of the top splicing part is provided with the first flange plate splice plate, and the inner surface is provided with the second flange plate splice plate and is fixed through the bolts;
the outer surface of bottom concatenation department is provided with first flange board splice plate, the internal surface is provided with second flange board splice plate, and pass through the bolt fastening.
7. The multi-piece T-beam laterally attached steel-concrete composite beam structure of claim 6, wherein the third securing assembly further comprises a web splice plate;
the web of the free end of the first welded plate and the web of the free end of the second welded plate, in the case of splicing:
the web splice plates are arranged on two sides of the web of the first welding plate and the web of the second welding plate and are fixed through the bolts.
8. The multi-T beam laterally attached steel-concrete composite beam structure of claim 1, wherein the first main beam and the second main beam flange plates are attached by concrete wet joints.
9. The multi-T beam laterally attached steel-concrete composite spreader structure of claim 1, wherein the first main beam and the second main beam are each of a T-shaped configuration;
the web centers of the adjacent sides of the first girder and the second girder are correspondingly provided with the first concrete slab and the second concrete slab from top to bottom.
10. A construction method of a steel-concrete composite diaphragm beam transversely connected with a plurality of T beams, which is characterized in that the construction method is applied to the steel-concrete composite diaphragm beam structure transversely connected with a plurality of T beams according to any one of claims 1 to 9, and comprises the following steps:
manufacturing a first welding plate, a second welding plate and a third fixing assembly;
before pouring, pre-assembling the first welding plate, the second welding plate and the third fixing assembly;
placing the first welding plate, the second welding plate and the third fixing assembly after the pre-assembly is completed in a template, and then pouring concrete in the template to prepare a first main beam, a second main beam, a first concrete slab and a second concrete slab;
after the concrete curing is finished, disassembling the first welding plate, the second welding plate and the third fixing assembly, and numbering the first welding plate, the second welding plate and the third fixing assembly;
and conveying the first main beam and the second main beam to a construction site, and selecting the third fixing assembly matched with the first welding plate and the second welding plate to be connected according to the number.
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| CN202410239952.2A CN117822410B (en) | 2024-03-04 | 2024-03-04 | Steel-concrete combined diaphragm beam structure with transversely connected T beams and construction method |
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| CN202410239952.2A CN117822410B (en) | 2024-03-04 | 2024-03-04 | Steel-concrete combined diaphragm beam structure with transversely connected T beams and construction method |
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| CN117822410B CN117822410B (en) | 2024-05-28 |
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