CN113585048A - Steel skeleton concrete slab and wet joint structure - Google Patents
Steel skeleton concrete slab and wet joint structure Download PDFInfo
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- CN113585048A CN113585048A CN202111043208.8A CN202111043208A CN113585048A CN 113585048 A CN113585048 A CN 113585048A CN 202111043208 A CN202111043208 A CN 202111043208A CN 113585048 A CN113585048 A CN 113585048A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 244
- 239000010959 steel Substances 0.000 title claims abstract description 244
- 239000004567 concrete Substances 0.000 title claims abstract description 158
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 105
- 238000004891 communication Methods 0.000 claims description 28
- 230000002787 reinforcement Effects 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims 3
- 238000005452 bending Methods 0.000 abstract description 11
- 238000010008 shearing Methods 0.000 abstract description 10
- 238000010276 construction Methods 0.000 description 11
- 239000011150 reinforced concrete Substances 0.000 description 9
- 238000003466 welding Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
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Abstract
The invention relates to the technical field of constructional engineering, in particular to a steel skeleton concrete slab and a wet joint structure. The wet joint structure is positioned between the connecting ends of two adjacent steel skeleton concrete plates, the connecting plates extending out from the connecting ends of the two adjacent steel skeleton concrete plates are arranged in a staggered manner, the two staggered and adjacent connecting plates are arranged in a clinging manner to form a connecting group, the connecting group is provided with a reinforcing piece, the reinforcing parts and the connecting groups are connected through bolts, an interval is arranged between every two adjacent connecting groups, the connecting and fixing of the two connecting plates, the reinforcing parts and the steel plates in the connecting groups are realized after the joint concrete is poured, so that the connecting plates, the reinforcing parts and the steel plates form a whole, the connecting plates and the rib plates of the framework form an integrated structure and penetrate through the whole concrete slab with the steel framework, meanwhile, all the concrete can be connected into a whole, the integrity is good, the bending resistance and the shearing resistance of the connection plates are good, the connection of the two connecting plates in the connection group is realized through bolts, and the connection is convenient.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a steel skeleton concrete slab and a wet joint structure.
Background
In the building engineering of bridges, industrial plants and the like, reinforced concrete slabs are adopted, a cast-in-place process can be adopted according to the construction arrangement, and the slabs can also be transported to the construction site after being prefabricated. No matter the cast-in-place slab or the prefabricated slab, in the prior art, the steel bar mesh is adopted as a framework of the slab, in the manufacturing process of the steel bar mesh, the steel bars which are crossed vertically and horizontally are required to be connected by binding wires manually, part of the steel bars are welded, the positioning of the steel bars is also relatively difficult, and the workload is large and tedious in the whole process. In addition, in a plate structure having a relatively large load, in order to increase the bending resistance of the plate, a steel bar having a large diameter needs to be provided at each position during design, the amount of steel used is increased, and thus the cost is increased.
In the construction of a large-span bridge, a plurality of prefabricated slabs are generally spliced, and a wet joint structure is reserved between two adjacent prefabricated slabs to be spliced, so that the prefabricated slabs are connected. And the wet seam of the bridge span upwards is in a negative bending moment area when stressed, and simultaneously bears the shearing force, belongs to a weak stress position and is easy to damage. The existing wet joint structure is mostly bound by reinforcing steel bars extending out of the end parts of two adjacent reinforced concrete slabs, then concrete is poured, the extending reinforcing steel bars are mostly linear type and U type, the structure needs to be configured with a large amount of manpower when in construction, the negative bending moment and the shearing resistance are resisted generally, and the mechanical property is often influenced by manual errors during welding.
Disclosure of Invention
Technical problem to be solved
It is a first object of the present invention to provide a wet joint structure that is easy and reliable to join and has good resistance to bending and shearing.
A second object of the present invention is to provide a steel reinforced concrete slab having a higher bearing capacity with the same amount of steel, which is easy to manufacture, and adjacent steel reinforced concrete slabs which can form a wet joint structure with easy and reliable connection, and good bending and shearing resistance.
(II) technical scheme
In order to achieve the first object, the invention provides a wet joint structure, which is located between connecting ends of two adjacent steel skeleton concrete plates, wherein the connecting end of each steel skeleton concrete plate is provided with a plurality of connecting plates arranged in parallel at intervals, each connecting plate is formed by extending a skeleton rib plate in each steel skeleton concrete plate out of the steel skeleton concrete plate and extends towards the other adjacent steel skeleton concrete plate, each connecting plate is provided with a communication hole and a plurality of bolt through holes arranged around the communication hole, the connecting plates extending out of the connecting ends of the two adjacent steel skeleton concrete plates are arranged in a staggered mode, the two staggered and adjacent connecting plates are arranged in a closely attached mode to form a connecting group, and intervals are reserved between the two adjacent connecting groups;
a steel plate is arranged below the connecting ends of the two adjacent steel skeleton concrete plates, and the width of the steel plate in the spacing direction of the two steel skeleton concrete plates is larger than the spacing distance between the connecting ends of the two steel skeleton concrete plates;
two sides of each connecting group are also provided with two reinforcing pieces which are tightly attached to the connecting group, the reinforcing pieces are plate-shaped, the lower ends of the reinforcing pieces are connected with the steel plates, reinforcing piece communication holes are also formed in the reinforcing pieces, and a plurality of reinforcing piece bolt holes are formed around the reinforcing piece communication holes, the reinforcing piece communication holes are communicated with the two communication holes of the connecting group, the reinforcing piece bolt holes are coaxially corresponding to bolt through holes of the two connecting plates in the connecting group, bolts can penetrate through the bolt through holes and the reinforcing piece bolt holes to be matched with nuts, and the two connecting plates, the two reinforcing pieces and the steel plates in the connecting group are connected and fixed;
joint concrete is poured between the connecting ends of the two adjacent steel skeleton concrete plates, and the two adjacent steel skeleton concrete plates and the steel plate are connected into a whole.
Preferably, the connecting plate extends towards and abuts against the adjacent other steel-framed concrete panel.
Preferably, the lower side of the connecting plate has an extension portion, which is connected with the steel plate.
Preferably, the reinforcing element is an L-shaped plate, and the L-shaped plate includes two flat plate portions vertically arranged, wherein one flat plate portion is tightly attached to the connecting group, and the other flat plate portion is tightly attached to and fixedly connected with the steel plate.
Preferably, a plurality of shear pins are provided on the steel plate at locations between adjacent sets of connections.
In a second aspect, the invention further provides a wet joint structure, which is located between the connecting ends of two adjacent steel skeleton concrete plates, wherein the connecting end of each steel skeleton concrete plate is provided with a plurality of connecting plates arranged in parallel at intervals, each connecting plate is formed by extending a skeleton rib plate in each steel skeleton concrete plate out of the steel skeleton concrete plate and extending towards the other adjacent steel skeleton concrete plate, each connecting plate is provided with a communication hole and a plurality of bolt through holes arranged around the communication hole, the connecting plates extending out of the connecting ends of the two adjacent steel skeleton concrete plates are arranged in a staggered mode, the two staggered and adjacent connecting plates are a connecting group, and an interval is reserved between the two adjacent connecting groups;
a steel plate is arranged below the connecting ends of the two adjacent steel skeleton concrete plates, and the width of the steel plate in the spacing direction of the two steel skeleton concrete plates is larger than the spacing distance between the connecting ends of the two steel skeleton concrete plates;
a reinforcing piece is further arranged between the two connecting plates of each connecting group, the reinforcing piece is in a straight plate shape, the two connecting plates are tightly attached to the reinforcing piece, the lower end of the reinforcing piece is connected with the steel plate, a reinforcing piece communicating hole is further formed in the reinforcing piece, and a plurality of reinforcing piece bolt holes are formed around the reinforcing piece communicating hole and are communicated with the two communicating holes of the connecting group;
joint concrete is poured between the connecting ends of the two adjacent steel skeleton concrete plates, and the two adjacent steel skeleton concrete plates and the steel plate are connected into a whole.
Preferably, the connecting plate extends towards and abuts against the adjacent other steel-framed concrete panel.
Preferably, the lower side of the connecting plate has an extension portion, which is connected with the steel plate.
Preferably, a plurality of shear pins are provided on the steel plate at locations between adjacent sets of connections.
In a third aspect, the present invention provides a wet joint structure between connecting ends of two adjacent steel skeleton concrete panels, wherein: the connecting end of each steel skeleton concrete slab is provided with a plurality of connecting plates which are arranged in parallel at intervals, each connecting plate is formed by extending a skeleton rib plate in each steel skeleton concrete slab out of each steel skeleton concrete slab and extending towards the other adjacent steel skeleton concrete slab, each connecting plate is provided with a communication hole and a plurality of bolt through holes arranged around the communication hole, the connecting plates extending out of the connecting ends of the two adjacent steel skeleton concrete slabs are arranged in a staggered mode, the two adjacent connecting plates which are staggered are arranged in a clinging mode to form a connecting group, and an interval is formed between the two adjacent connecting groups;
a steel plate is arranged below the connecting ends of the two adjacent steel skeleton concrete plates, and the width of the steel plate in the spacing direction of the two steel skeleton concrete plates is larger than the spacing distance between the connecting ends of the two steel skeleton concrete plates;
at least two reinforcing pieces are arranged on part of the connecting group at intervals, the reinforcing pieces are U-shaped plates, the U-shaped plates clamp the connecting group, open ends of the U-shaped plates are positioned at the lower side and connected with the steel plates, the two reinforcing pieces are respectively arranged at two sides of the communicating hole in the interval direction of the two steel skeleton concrete plates, a plurality of reinforcing piece bolt holes are formed in the reinforcing pieces and penetrate through two plate walls of the U-shaped plates, the reinforcing piece bolt holes are coaxially corresponding to bolt through holes of the two connecting plates in the connecting group, and bolts can penetrate through the bolt through holes and the reinforcing piece bolt holes to be matched with nuts, so that the two connecting plates, the two reinforcing pieces and the steel plates in the connecting group are connected and fixed;
in the connection group without the reinforcing part, bolt through holes of the two connecting plates are coaxial and corresponding, and bolts can penetrate through the bolt through holes to be matched with nuts, so that the two connecting plates in the connection group are fixedly connected with the steel plate;
joint concrete is poured between the connecting ends of the two adjacent steel skeleton concrete plates, and the two adjacent steel skeleton concrete plates and the steel plate are connected into a whole.
Preferably, the connecting plate extends towards and abuts against the adjacent other steel-framed concrete panel.
Preferably, a plurality of shear pins are provided on the steel plate at locations between adjacent sets of connections.
In order to achieve the second object, in a fourth aspect, the present invention also provides a steel skeleton concrete panel including:
the steel skeleton comprises a skeleton rib plate group and a steel bar group, wherein the skeleton rib plate group comprises a plurality of skeleton rib plates which are arranged at intervals in parallel, connecting plates are arranged at two ends of each skeleton rib plate respectively, the two connecting plates and the skeleton rib plates are of an integral structure, a plurality of through holes penetrating through the skeleton rib plates are formed in the skeleton rib plates, the steel bar group comprises two rows of steel bars which are arranged at intervals from top to bottom, each row of steel bars comprises a plurality of steel bars which are arranged at intervals in parallel, the steel bars are perpendicular to the skeleton rib plates, one row of steel bars positioned on the upper side are arranged on the upper side of the skeleton rib plates and connected with the skeleton rib plates, one row of steel bars positioned on the lower side are arranged in the through holes in a penetrating mode and connected with the lower side walls of the through holes, and the connecting plates are provided with communicating holes and a plurality of bolt through holes arranged around the communicating holes; and
and the plate body concrete covers the rib plate group of the framework and at least covers the middle section of each steel bar in the steel bar group.
Optionally, the underside of the connecting plate has an extension, which is connected to the steel plate.
(III) advantageous effects
The technical scheme of the invention has the following advantages: the wet joint structure provided by the invention is positioned between the connecting ends of two adjacent steel skeleton concrete plates, the connecting plates extending out of the connecting ends of the two adjacent steel skeleton concrete plates are arranged in a staggered manner, the two staggered and adjacent connecting plates are arranged in a clinging manner to form a connecting group, the connecting group is provided with the reinforcing member, the reinforcing member and the connecting group are connected through bolts, a gap is formed between the two adjacent connecting groups, after the joint concrete is poured, the connecting and fixing of the two connecting plates, the reinforcing member and the steel plate in the connecting group are realized, the connecting plates, the reinforcing member and the steel plate form a whole, the connecting plates and the skeleton rib plates are of an integral structure and penetrate through the whole steel skeleton concrete plates, meanwhile, the concrete at each part can be connected into a whole, the integrity is good, the bending resistance and the shearing resistance are good through the connecting plates, and the connection of the two connecting plates in the connecting group is realized through the bolts, the connection is convenient.
The invention provides a steel skeleton concrete slab which comprises a steel skeleton and slab concrete, wherein the steel skeleton comprises a skeleton rib plate group and a steel bar group, the skeleton rib plate group comprises a plurality of skeleton rib plates which are arranged in parallel at intervals, two sides of each skeleton rib plate are integrally connected with connecting plates extending out of the slab concrete, the steel bar group comprises two rows of steel bars which are arranged at intervals up and down, each row of steel bars comprises a plurality of steel bars which are arranged in parallel at intervals, the steel bars are arranged vertical to the skeleton rib plates, one row of steel bars positioned at the upper side are arranged at the upper side of the skeleton rib plates and connected with the skeleton rib plates, one row of steel bars positioned at the lower side are arranged in through holes in a penetrating way and connected with the lower side walls of the through holes, and the steel skeleton concrete slab adopts the skeleton rib plates in one direction, so that the binding work load is reduced, the positioning is quick and accurate, and the manufacturing is more convenient; on the other hand, the integral is better, and under the condition of the same steel consumption, the steel reinforced concrete slab has higher bearing capacity, and is beneficial to splicing adjacent steel skeleton concrete slabs, so that the splicing is more convenient and reliable, and the spliced part has better bending resistance and shearing resistance.
Drawings
The drawings of the present invention are provided for illustrative purposes only, and the proportion and the number of the components in the drawings do not necessarily correspond to those of an actual product.
FIG. 1 is a schematic structural view of a steel reinforced concrete panel according to one embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a steel skeleton according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a rib plate and two end connection plates of a framework according to an embodiment of the present invention;
FIG. 4 is a side view schematic illustration of a steel reinforced concrete panel in accordance with an embodiment of the present invention;
FIG. 5 is a schematic structural view of another rib plate and two end connection plates of the framework according to the first embodiment of the present invention;
FIG. 6 is a schematic view of a wet seam construction according to a second embodiment of the present invention;
FIG. 7 is a schematic illustration of a wet joint structure with joint concrete removed according to a second embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a reinforcing member according to a second embodiment of the present invention;
FIG. 9 is a schematic view of another angle of the wet seam construction of FIG. 6;
FIG. 10 is an enlarged schematic view of section A of FIG. 9;
FIG. 11 is a schematic illustration of a wet seam construction according to a third embodiment of the present invention;
FIG. 12 is an enlarged view of portion B of FIG. 11;
FIG. 13 is a schematic structural view of a reinforcing member according to a third embodiment of the present invention;
FIG. 14 is a schematic illustration of a wet seam construction according to a fourth embodiment of the present invention;
FIG. 15 is a schematic view of another angle of the wet seam construction of FIG. 14;
fig. 16 is a schematic structural view of a reinforcing member according to a fourth embodiment of the present invention.
In the figure: 1: a steel skeleton concrete slab; 11: a steel skeleton; 111: a framework rib plate; 1111: a through hole; 112: a connecting plate; 1121: a communicating hole; 1122: passing a hole through a bolt; 1123: an extension portion; 113: reinforcing steel bars; 12: concrete of the plate body;
2: a wet seam construction; 21: joint concrete; 22: a reinforcement; 221: a reinforcement communication hole; 222: a reinforcement bolt hole; 23: a steel plate; 24: a bolt; 25: a nut; 26: a shear pin.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example one
Referring to fig. 1 to 3, a steel skeleton concrete panel 1 according to an embodiment of the present invention includes a steel skeleton 11 and a panel concrete 12.
Referring to fig. 1 and 2, the steel skeleton 11 includes a skeleton rib plate group and a steel bar group, and the skeleton rib plate group includes a plurality of skeleton ribs 111 arranged in parallel at intervals. Referring to fig. 2 and 3, two ends of the rib 111 are respectively provided with a connecting plate 112, the two connecting plates 112 and the rib 111 are integrated, the part outside the concrete 12 is the connecting plate 112, the part inside the concrete 12 is the rib 111, the rib 111 is provided with a plurality of through holes 1111 penetrating the rib 111, for example, two long circular through holes arranged at intervals in the length direction of the rib 111, under the condition of ensuring the strength requirement (obtained by finite element analysis according to the required bearing capacity, the analysis mode is the prior art, and is not described herein again), the rib 111 is used for ensuring the integrity of the concrete 12 passing through each rib 111. The occupied area of the through holes 1111 is as large as possible, so that steel is saved.
Referring to fig. 2, the steel bar group includes two rows of steel bars arranged at an upper and lower interval, each row of steel bars includes a plurality of steel bars 113 arranged at a parallel interval, the whole vertical framework rib plate group of the steel bar group, that is, the steel bars 113 are arranged vertical to the framework rib plate 112, and the one row of steel bars arranged at the upper side are arranged at the upper side of the framework rib plate 112 and connected with the framework rib plate 112, for example, spot welding connection, binding connection or connection through groove embedding (grooves are arranged at corresponding positions of the framework rib plate 112, and the steel bars 113 are embedded into the grooves). The row of steel bars 113 on the lower side is inserted into the through hole 1111 and connected to the lower sidewall of the through hole 1111, and the connection mode refers to the connection mode of the steel bars 113 on the upper row, which is not described herein again.
Referring to fig. 2 and 3, the connection plate 112 is provided with a communication hole 1121 and a plurality of bolt passing holes 1122 provided around the communication hole 1121. The slab concrete 12 covers the rib plate groups and at least covers the middle section of each steel bar 113 in the steel bar group, that is, the slab concrete 12 is cast and molded by a template according to the design size, and covers all the rib plates 111 of the framework to enable the connecting plate 112 to be located on the outer side of the slab concrete 12 and also covers at least the middle section of each steel bar 113, that is, in some embodiments, if the steel frame concrete slab 1 does not need to reserve steel bars on the outer side of the slab concrete 12, the slab concrete 12 can cover the whole steel bar 113, if steel bars need to be reserved on the outer side of the slab concrete 12, the cast slab concrete 12 only needs to cover the middle sections of the steel bars 113, and the steel bar sections at the two ends are located on the outer side of the slab concrete 12. It should be noted that the slab concrete 12 may be cast by using an existing casting process, and details thereof are not described herein.
It should be noted that the through holes 1111 and the communication holes 1121 both have a function of allowing concrete to pass through, the through holes 1111 maintain integrity of slab concrete on both sides of the framework rib 111, and the communication holes 1121 maintain integrity of joint concrete on both sides of the connection plate 112, thereby improving the overall bearing capacity.
When the steel skeleton concrete slab 1 in the embodiment is used, the length direction of the skeleton rib plate 111 is arranged along the span direction, and the skeleton rib plate 111 is adopted in the direction, so that compared with the binding by steel bars, on one hand, the binding workload is reduced, the positioning is quicker and more accurate, and the manufacturing is more convenient; on the other hand, the integral is better, and under the condition of the same steel consumption, the steel reinforced concrete slab has higher bearing capacity, and is beneficial to splicing the adjacent steel skeleton concrete slabs 1, so that the splicing is more convenient and reliable, and the spliced part has better bending resistance and shearing resistance. This application is through the whole concrete slab that runs through of the connecting plate at skeleton floor and both ends of a body structure, avoids only the tip to set up the connecting plate and the local steel of crossing that leads to compare only the tip and set up the connecting plate, concrete slab's in this application wholeness can obviously be better.
In order to provide better connection integrity between adjacent steel reinforced concrete panels 1 in a tiled structure, in some embodiments, as shown in fig. 4 and 5, an extension 1123 is provided on the underside of the tie plate 112, the extension 1123 preferably being of unitary construction with the tie plate 112, the underside of which is flush with the underside of the panel concrete 12.
The rib 111 and the connecting plate 112 of the framework can be made of steel materials commonly used for existing concrete slabs, and are not described herein again.
Example two
Referring to fig. 6-10, the wet joint structure 2 provided in the second embodiment is located between the connecting ends of two adjacent steel-framed concrete panels 1, and the two steel-framed concrete panels 1 may adopt any one of the steel-framed concrete panels 1 in the first embodiment, and the structure of the steel-framed concrete panel 1 is not described herein again. The connecting end of the steel-framed concrete panels 1 means two opposite end portions of two adjacent steel-framed concrete panels 1, that is, an end portion at which the two steel-framed concrete panels 1 are connected.
Referring to fig. 9 and 10, the connecting plates 112 extending from the connecting ends of two adjacent steel skeleton concrete plates 1 are staggered, and two staggered adjacent connecting plates 112 are arranged in a close contact manner to form a connecting group, and a space is reserved between two adjacent connecting groups.
Referring to fig. 6, 7, 9 and 10, a steel plate 23 is provided below between the connection ends of two adjacent steel-framed concrete plates 1, and the width of the steel plate 23 in the spacing direction of the two steel-framed concrete plates 1 is greater than the spacing distance between the connection ends of the two steel-framed concrete plates 1. It should be noted that the steel plate 23 may be a steel plate (see fig. 14) which is independently installed, and is suitable for the joint of the steel skeleton concrete slab 1 at the non-beam position. It is also possible to use steel beams as steel plates (see fig. 6, 7, 9 and 11) for joints spliced at the steel beams.
Two reinforcing members 22 are arranged on two sides of each connecting group and are tightly attached to the connecting group, each reinforcing member 22 is plate-shaped, the lower end of each reinforcing member 22 is connected with the steel plate 23 (for example, welding, bolt connection and the like), a reinforcing member communication hole 221 is arranged on each reinforcing member 22, a plurality of reinforcing member bolt holes 222 are arranged around the reinforcing member communication holes 221, the reinforcing member communication holes 221 are communicated with the two communication holes 1121 of the connecting group, the reinforcing member bolt holes 222 are coaxially corresponding to the bolt through holes 1122 of the two connecting plates 112 in the connecting group, bolts 24 can penetrate through the bolt through holes 1122 and the reinforcing member bolt holes 222 to be matched with nuts 25, connection and fixation of the two connecting plates 112, the two reinforcing members 22 and the steel plates 23 in the connecting group are realized, the connecting plates 112, the reinforcing members 22 and the steel plates 23 form a whole, the connecting plates 112 and the framework rib plates 111 are of an integrated structure and penetrate through the whole steel framework rib plate concrete slab 1, meanwhile, all the concrete can be connected into a whole, the integrity is good, the bending resistance and the shearing resistance of the connection through the connecting plates 112 are good, the connection of the two connecting plates 112 in the connection group is realized through bolts, and the connection is convenient.
In embodiments having extensions 1123, the extensions 1123 connect with the steel plate 23, further increasing the integrity of the connection.
Joint concrete 21 is poured between the connecting ends of the two adjacent steel skeleton concrete plates 1, structures in the joints are covered, the two adjacent steel skeleton concrete plates 1 and the steel plate 23 are connected into a whole, and the wet joint structure is shown in figure 6, realizes the connection of the two adjacent steel skeleton concrete plates 1, is convenient and reliable to connect, and has good bending resistance and shearing resistance.
In some preferred embodiments, referring to fig. 9 and 10, the connecting plate 112 extends towards and abuts against the adjacent other steel-framed concrete panel 1, increasing the structural strength of the connection.
In order to increase the connection strength and convenience between the reinforcing element 22 and the steel plate 23, in some preferred embodiments, as shown in fig. 8 to 10, the reinforcing element is an L-shaped plate, the L-shaped plate includes two flat plate portions vertically disposed, one of the flat plate portions is tightly attached to the connecting set, the other flat plate portion is tightly attached to the steel plate 23, and the steel plate 23 is fixedly connected, specifically, by welding or bolting.
To further increase the connection to the joint concrete 21, in some preferred embodiments, referring to fig. 7, 9 and 10, a plurality of shear pins 26 are provided on the steel plate 23 at locations between adjacent sets of connections.
The reinforcing member 22 may be made of a steel material commonly used for existing concrete slabs, and will not be described in detail.
EXAMPLE III
Referring to fig. 11 to 13, the wet seam structure provided by the third embodiment is substantially the same as that provided by the second embodiment, and the description of the same parts is omitted, except that: only one reinforcing member 22 is arranged and is in a straight plate shape (see fig. 12), the straight plate-shaped reinforcing member 22 is arranged between two connecting plates 112 in the connecting group, the two connecting plates 112 are tightly attached to the reinforcing member 22, reinforcing member communication holes 221 in the reinforcing member 22 are communicated with two communication holes 1121 in the connecting group, reinforcing member bolt holes 222 are coaxially corresponding to bolt through holes 1122 of the two connecting plates 112 in the connecting group, bolts 24 can penetrate through the bolt through holes 1122 and the reinforcing member bolt holes 222 to be matched with nuts 25, connection and fixation of the two connecting plates 112, the two reinforcing members 22 and the steel plate 23 in the connecting group is achieved, and the connecting plates 112, the reinforcing member 22 and the steel plate 23 are integrated. Preferably, the underside of the reinforcement 22 is connected to a steel plate 23.
Example four
Referring to fig. 14-16, the wet seam structure provided by the fourth embodiment is substantially the same as that provided by the second embodiment, and the description of the same parts is omitted, except that: at least two reinforcements 22 are arranged at intervals on part of the connection groups, for example, two reinforcements 22 are arranged on every other connection group, two reinforcements 22 may be arranged on every other connection group, or two reinforcements 22 may be arranged on each connection group. The upper reinforcements 22 of one connection group may also be adjusted as necessary, for example, three, four, etc., but cannot block the communication holes 1121.
Referring to fig. 15 and 16, the two connecting plates 112 in the connecting set are alternatively attached, the reinforcing member 22 is a U-shaped plate, the U-shaped plate holds the connecting set, and the open end of the U-shaped plate is located at the lower side and connected to the steel plate 23, for example, by welding.
In the following, by taking the example that the reinforcing members 22 are provided at every other connection group, two reinforcing members 22 are provided on one connection group, two reinforcing members 22 are respectively provided on both sides of the communication hole 1121 in the direction of the interval between the two steel skeleton concrete panels 1, a plurality of reinforcing member bolt holes 222 are provided on the reinforcing members 22, and penetrate through two panel walls of the U-shaped panel, the reinforcing member bolt holes 222 coaxially correspond to the bolt through holes 1122 of the two connection plates 112 in the connection group, and the bolts 24 can penetrate through the bolt through holes 1122 and the reinforcing member bolt holes 222 to be matched with the nuts 25, so that the connection and fixation of the two connection plates 112, the two reinforcing members 22 and the steel plates 23 in the connection group is realized.
In the connection group without the reinforcement 22, the bolt through holes 1122 of the two connection plates 112 are coaxial and corresponding, and the bolts 24 can penetrate through the bolt through holes 1122 to be matched with the nuts 25, so that the connection and fixation between the two connection plates 112 and the steel plate 12 in the connection group are realized.
Joint concrete 21 is poured between the connecting ends of the two adjacent steel skeleton concrete plates 1, and the two adjacent steel skeleton concrete plates 1 and the steel plate 23 are connected into a whole.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present 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: each embodiment does not include only one independent technical solution, and in the case of no conflict between the solutions, the technical features mentioned in the respective embodiments can be combined in any way to form other embodiments which can be understood by those skilled in the art.
Furthermore, modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, without departing from the scope of the present invention, and the essence of the corresponding technical solutions does not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
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| CN202111043208.8A CN113585048A (en) | 2021-09-07 | 2021-09-07 | Steel skeleton concrete slab and wet joint structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114622485A (en) * | 2022-03-08 | 2022-06-14 | 湖南大学 | Pier top cast-in-place joint structure adopting embedded steel plate strips and construction method thereof |
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| CN114622485A (en) * | 2022-03-08 | 2022-06-14 | 湖南大学 | Pier top cast-in-place joint structure adopting embedded steel plate strips and construction method thereof |
| CN114622485B (en) * | 2022-03-08 | 2023-09-08 | 湖南大学 | Pier top cast-in-situ joint structure adopting embedded steel strip and construction method thereof |
| CN114775423A (en) * | 2022-03-24 | 2022-07-22 | 清华大学 | Concrete composite slab unit, concrete composite slab assembly, concrete composite slab bridge body and splicing construction method |
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