CN108412122A - Double web H shaped steel and its connecting node with concrete prefabricated board - Google Patents
Double web H shaped steel and its connecting node with concrete prefabricated board Download PDFInfo
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- CN108412122A CN108412122A CN201810439494.1A CN201810439494A CN108412122A CN 108412122 A CN108412122 A CN 108412122A CN 201810439494 A CN201810439494 A CN 201810439494A CN 108412122 A CN108412122 A CN 108412122A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 146
- 239000010959 steel Substances 0.000 title claims abstract description 146
- 239000004567 concrete Substances 0.000 title claims abstract description 69
- 210000003205 muscle Anatomy 0.000 claims abstract description 14
- 230000002787 reinforcement Effects 0.000 claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 27
- 238000005266 casting Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 10
- 230000035939 shock Effects 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 19
- 238000005452 bending Methods 0.000 description 11
- 230000007704 transition Effects 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 239000011083 cement mortar Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000010412 perfusion Effects 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 241000277275 Oncorhynchus mykiss Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4157—Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head
-
- 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
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/023—Separate connecting devices for prefabricated floor-slabs
-
- 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
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
-
- 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
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/10—Load-carrying floor structures formed substantially of prefabricated units with metal beams or girders, e.g. with steel lattice girders
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
- E04C3/083—Honeycomb girders; Girders with apertured solid web
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
- E04C2003/0452—H- or I-shaped
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses double web H shaped steel and its with the connecting node of concrete prefabricated board.Its key points of the technical solution are that including two blocks of flange plates and two blocks of webs, two blocks of flange plates are mutually parallel, and two blocks of webs are mutually parallel, and the web is vertically fixed between two blocks of flange plates；Two blocks of webs and two blocks of flange plates constitute cavity.The H profile steel can reduce material utilization amount, good integrity.Prefabricated board and steel construction are attached by laterally attached muscle, the first reinforcement connecting rod and rear pouring concrete, effectively increase the globality and shock resistance of connecting node by the connecting node of double web H shaped steel and concrete prefabricated board.
Description
Technical field
The present invention relates to a kind of shaped steel in building, more particularly to a kind of double web H shaped steel and its and concrete prefabricated board
Connecting node.
Background technology
At this stage, China's building trade is in Transformation Development period, and assembled architecture is the development trend of future architecture industry.
Currently, H profile steel is frequently as steel column and girder steel in steel construction assembled architecture through using, but when H profile steel is used for long span
Often by increasing section size to meet stress performance.Especially H profile steel is used as girder steel in use, needing to increase the bottom wing
The thickness of listrium and the height of web increase web thickness to enhance its shearing resistance, antitorque ability to enhance its bending resistance.But
The increase of H profile steel own wt can be caused by being the measure of this increasing section, enhancing thickness, when calculating stress, be needed it certainly
Take into account again, to need further pair cross-section to be increased, when the H profile steel size that final design goes out is used in building, steel
The utilization rate of material is low, causes the waste of material；In addition, the increase of web height can cause the decline of the anti-stability of H profile steel, and it is right
In higher-height H profile steel, during the installation process, it is also necessary to carry out the temperature pier for preventing from toppling, reduce construction efficiency, increase
Security risk is added.
Invention content
It is an object of the present invention to provide a kind of double web H shaped steel, which can reduce material utilization amount, globality
It is good.
It is a further object to provide a kind of connecting node of double web H shaped steel and concrete prefabricated board, the sections
Point is connected firmly, shock resistance is good.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of double web H shaped steel, including two blocks of flange plates and two blocks of webs, two blocks of flange plates are mutually parallel, described two pieces
Web is mutually parallel, and the web is vertically fixed between two blocks of flange plates；Two blocks of webs and two blocks of flange plates constitute sky
Chamber.
By using above-mentioned technical proposal, double webs compared with prior art in meridosternous H profile steel, have preferably it is antitorque
Ability, whole rigidity are more preferable；It is identical in the overall thickness of the double-deck web and the thickness of single layer web, it can also realize phase
Same anti-bending strength, and the setting of the double-deck web can under equal conditions reduce the height of web, be used to reduce steel
Amount.
Preferably, several through-holes are at least offered on one block of flange plate, the through-hole is located within the scope of cavity.
By using above-mentioned technical proposal, when conveniently pouring into a mould concrete at the construction field (site), concrete can be synchronized into double
In the cavity of web H shaped steel, the connection of double web H shaped steel and outer concrete is improved, keeps overall structure more secured.
Preferably, further include the first reinforcement connecting rod；Two blocks of flange plates are the first flange plate and the second flange plate；The
One reinforces through-hole of the connecting rod on the first flange plate, and one end of the first reinforcement connecting rod is vertical with the second flange plate affixed,
The other end exposes the first flange plate.
By using above-mentioned technical proposal, the connection of double web H shaped steel and outer concrete is further enhanced.
Preferably, the web is corrugated web, i.e., web is sinusoidal shape along the length direction of H profile steel.
By using above-mentioned technical proposal, bending resistance, torsional property and the anti-flexion capabilities of double web H shaped steel are improved.
Preferably, it is perfused with concrete in cavity.
By using above-mentioned technical proposal, the bending resistance of double web H shaped steel, antitorque and fire protecting performance are improved, solves sky
The Anticorrosion of intracavitary steel surface.
Preferably, prestressing force identical with double web H shaped steel length directions is provided in cavity at flange plate
Reinforcing bar or prestress wire.
By using above-mentioned technical proposal, reinforces the anti-bending strength of double web H shaped steel, saved the input of steel plate materials.
Preferably, further include the second reinforcement connecting rod, second, which reinforces connecting rod, is located in cavity, is vertically fixed in the wing
The inner surface of listrium.
By using above-mentioned technical proposal, the shear resistance of cavity inner concrete is improved.
Preferably, further include that third reinforces connecting rod, third reinforces the appearance that connecting rod is vertically fixed in flange plate
Face.
By using above-mentioned technical proposal, the connection of double web H shaped steel and external concrete perfusion is further improved.
A kind of connecting node of double web H shaped steel and concrete prefabricated board, including two blocks of precast floor slabs and such as claim
Described in double web H shaped steel；Two blocks of precast floor slabs are located at the same side of its first flange plate of double web H shaped steel, two pieces
The first post-cast strip, the first post-cast strip casting concrete are formed between precast floor slab；End face of the precast floor slab close to the first post-cast strip
It is provided with laterally attached muscle, the laterally attached muscle part is embedded in precast floor slab, and a part stretches out precast floor slab；Two pieces
First reinforcement connecting rod of the laterally attached muscle of precast floor slab and double web H shaped steel is connected with each other.
By using above-mentioned technical proposal, the globality and shock resistance of the connecting node are more preferable.
Preferably, the both ends outward bending of one of flange plate forms card adapter plate, and double web H shaped steel are arranged pre-
The top surface of wallboard processed, two pieces of card adapter plates block prefabricated panel.
By using above-mentioned technical proposal, the structural strengthening connection of double web H shaped steel and prefabricated panel makes dry wall
The overall structure of plate, H profile steel and precast floor slab is more secured.
Preferably, the lateral surface of two blocks of flange plates or in which one block of flange plate is connected with connection reinforcing bar；Double web H types
Steel is arranged in the top of prefabricated panel；The second post-cast strip is set between the top surface of prefabricated panel and double web H shaped steel bottom surface；It is prefabricated
Panel tops are provided with embedded bar, and embedded bar stretches out the part of prefabricated panel and to connect reinforcing bar affixed；Double web H shaped steel
Through-hole is offered on upper and lower two blocks of flange plates；Cavity inner concrete is connect with the second post-cast strip concrete by through-hole.
By using above-mentioned technical proposal, the second post-cast strip strengthens the connection of H profile steel and prefabricated panel.
Preferably, the end set for connecting reinforcing bar has an enlarged footing, embedded bar with connect reinforcing bar sleeve connection.
By using above-mentioned technical proposal, sleeve connection not only reduces the welding operation at scene, and makes connection more
Reliably.
In conclusion the invention has the advantages that：
1, double web H shaped steel steel using amounts are few, and from heavy and light, rigidity is big；
2, concrete perfusion in cavity further improves the rigidity and fire protecting performance of double web H shaped steel, has saved steel, and
And solves steel surface Anticorrosion in cavity；
3, the setting of the first reinforcement connecting rod and through-hole on flange plate, strengthens the company of cavity inner concrete and outer concrete
It connects；
4, deformed bar or prestress wire greatly improve tensile capacity, and further save shaped steel rolled steel dosage,
Mitigate dead weight；
5, the setting of the double-deck antinode plate improves bending resistance, torsional property and the anti-flexion capabilities of double web H shaped steel；
6, the connecting node of double web H shaped steel and concrete prefabricated board makes between precast floor slab and steel construction and prefabricated panel
Connection is more secured, and monolithic architecture structure is made to have better shock resistance.
Description of the drawings
Fig. 1 is double web H shaped steel overall schematics；
Fig. 2 is double web H shaped steel sectional views that concrete is filled in cavity；
Fig. 3 is provided with double web H formed steel construction schematic diagrames of the first reinforcement connecting rod and deformed bar；
Fig. 4 is provided with the second reinforcement connecting rod and third reinforces double web H formed steel construction schematic diagrames of connecting rod；
Fig. 5 is the structural schematic diagram of double abdomen corrugated plating H profile steels（Partly cut-away）；
Fig. 6 is the overall schematic of the connecting node of double web H shaped steel and concrete prefabricated board；
Fig. 7 is the connecting node sectional view poured into a mould after concrete；
Fig. 8 is provided with the structural schematic diagram of double web H shaped steel of card adapter plate；
Fig. 9 is the structural schematic diagram of double web H shaped steel and prefabricated panel clamping；
Figure 10 is double web H shaped steel and prefabricated panel and the connecting node schematic diagram of precast floor slab；
Figure 11 is provided with the structural schematic diagram of double web H shaped steel of connection reinforcing bar；
Figure 12 is that double web H shaped steel pass through the second post-cast strip attachment structure schematic diagram with prefabricated panel；
Figure 13 is the connecting node schematic diagram that strengthened connection bar is arranged；
Figure 14 is the node schematic diagram that reinforcing bar and embedded bar sleeve connection are connected in the second post-cast strip；
Double web H shaped steel that Figure 15 is provided with the second post-cast strip are integrally illustrated with the connecting node of prefabricated panel and precast floor slab
Figure；
Figure 16 is the structural schematic diagram for the square tube for offering through-hole；
Figure 17 is the structural schematic diagram of closed-entry reinforcing steel bar connecting sleeve tube middle cylinder body；
Figure 18 is the end view of necking；
Figure 19 is the cooperation schematic diagram of sleeve and connection reinforcing bar；
Figure 20 is the connection relationship diagram of closed-entry reinforcing steel bar connecting sleeve tube and prefabricated post；
Figure 21 is the structural schematic diagram that sleeve is connected with two reinforcing bars of vertical state；
Figure 22 is the structural schematic diagram for stretching into fastening piece type sleeve outside；
Figure 23 is to stretch into fastening piece type sleeve and the assembling schematic diagram for connecting reinforcing bar outside.
In figure, 1, flange plate；11, the first flange plate；12, the second flange plate；13, through-hole；14, card adapter plate；15, steel is connected
Muscle；16, strengthened connection bar；2, web；3, cavity；41, first reinforces connecting rod；42, second reinforces connecting rod；43, third adds
Strong ties bar；5, deformed bar；6, cylinder；61, necking；611, transition circular conical surface；62, injected hole；64, barrier element；65、
Clamping block；651, blocked hole；66, shrapnel；7, prefabricated panel；71, embedded bar；8, corrugated web；9, precast floor slab；91, side
To dowel；101, sleeve；102, dowel；103, enlarged footing；104, the first post-cast strip；105, the second post-cast strip.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.The identical reference numeral of wherein identical parts
It indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "upper", "lower", " bottom surface " and
" top surface " refers to that the direction in attached drawing, word "inner" and "outside" are referred respectively to towards or away from geometric center of specific component
Direction.
Embodiment one：
As shown in Figure 1, a kind of double web H shaped steel, including two blocks of flange plates 1 and two blocks of webs 2, two blocks of flange plates 1 are mutually parallel,
Two blocks of webs 2 are mutually parallel, and web 2 is vertically fixed between two blocks of flange plates 1；Two blocks of webs 2 are constituted with two blocks of flange plates 1
Cavity 3.Two blocks of flange plates 1 are the first flange plate 11 and the second flange plate 12.Double webs 2 compared with prior art in meridosternous 2 H
Shaped steel has better anti-twisting property, whole rigidity more preferable.In the thickness phase of the overall thickness and single layer web 2 of the double-deck web 2
With in the case of, identical anti-bending strength can be also realized, and the setting of the double-deck web 2 can under equal conditions reduce web
2 height, to reduce rolled steel dosage.
As shown in Fig. 2, further, concrete is perfused in cavity 3.The concrete being perfused in cavity 3 makes double abdomens
Plate H profile steel is provided with the performance of concrete filled steel tube, not only increases bending resistance, the torsional property of double web H shaped steel, and solves
The Anticorrosion of steel surface in cavity 3.In addition, the double web H shaped steel for being perfused with concrete have more compared to existing H profile steel
Good fire protecting performance, extends fire resistance period.
Double web H shaped steel are directly process in factory, and the concrete in cavity 3 can be directly perfused in factory,
Can also be to be irrigated at the construction field (site).
Because double web H shaped steel are as girder steel or steel column in use, often mixed in the cast of the side of one flange plate 1
Solidifying soil, or concrete is poured into a mould in its surrounding, so when pouring into a mould concrete at the construction field (site) for convenience, concrete can synchronize
Into in the cavity 3 of double web H shaped steel, so, as shown in Figure 1, several through-holes 13 are offered at least one block of flange plate 1,
Through-hole 13 is located in 3 range of cavity.
It is integral that the setting of through-hole 13 makes the concrete in the cavity 3 of double web H shaped steel be connect with its external concrete,
The connection for further improving double web H shaped steel and outer concrete, keeps overall structure more secured.
As shown in figure 3, in order to further strengthen the connection of double web H shaped steel and outer concrete, first can also be arranged
Reinforce connecting rod 41；First reinforces through-hole 13 of the connecting rod 41 on the first flange plate 11, and first reinforces the one of connecting rod 41
End is vertical affixed with the second flange plate 12, and the other end exposes the first flange plate 11.First reinforcement connecting rod 41 can be common
Reinforcing bar can also be peg.First reinforces connecting rod 41 preferably processes integrally with double web H shaped steel in the factory.
As shown in figure 3, in order to further strengthen the anti-bending strength of double web H shaped steel, it can be in cavity 3 close to flange plate
Deformed bar 5 identical with double web H shaped steel length directions or prestress wire are provided at 1.Deformed bar 5 is pre-
Prestress steel strand is also integral with double web H shaped steel processing in factory.The anchoring point or less of deformed bar 5 or steel strand wires
Two kinds of situations：
If before double web H shaped steel manufactures, without concrete perfusion in cavity 3, end can be arranged at the both ends of double web H shaped steel
Head plate, deformed bar 5 or prestress wire are anchored on end plate.
Before dispatching from the factory if it is double web H shaped steel, it is perfused with concrete in cavity 3, then to prestressing force in factory
The leading tensioning in the both ends of reinforcing bar 5 or steel strand wires, then Reperfu- sion concrete release both ends when concrete strength reaches requirement
Tensioning equipment, so that deformed bar 5 or steel strand wires is formed entirety with 3 inner concrete of cavity.
As shown in figure 4, in order to improve the shear resistance of 3 inner concrete of cavity, the second reinforcement of setting connecting rod in cavity 3
42, the second reinforcement connecting rod 42 can be vertical welding in the peg of the inner surface of flange plate 1.
As shown in figure 4, in order to improve the connection of double web H shaped steel and external concrete perfusion, in the outer surface of flange plate 1
Vertical welding third reinforces connecting rod 43, and it can be reinforcing bar or peg etc. that third, which reinforces connecting rod 43,.
As shown in figure 5, preferably, web 2 can be corrugated web 8, i.e., web 2 is sine along the length direction of H profile steel
Curve shape, two pieces of corrugated webs 8 can be arranged symmetrically.The setting can further increase the bending resistance of double web H shaped steel, resist
Turn round performance and anti-flexion capabilities.
Embodiment two：
As shown in Figures 6 and 7, a kind of connecting node of double web H shaped steel and concrete prefabricated board, including two blocks of precast floor slabs 9
With double web H shaped steel；Double web H shaped steel include that through-hole 13 and first reinforces connecting rod 41；Two blocks of precast floor slabs 9 are located at double webs
The same side of its first flange plate 11 of H profile steel forms the first post-cast strip 104, the first post-cast strip between two blocks of precast floor slabs 9
104 casting concretes；Precast floor slab 9 is provided with laterally attached muscle 91 close to the end face of the first post-cast strip 104, described laterally attached
91 part of muscle is embedded in precast floor slab 9, and a part stretches out precast floor slab 9；The laterally attached muscle 91 of two blocks of precast floor slabs 9 with
And the first of double web H shaped steel reinforces connecting rod 41 and is connected with each other.
The connecting node of prefabricated board and steel construction is generally connected by screw bolts or local welding in existing assembled architecture,
The shortcomings of in the presence of poor insecure, shock resistance and globality poor is connected, by laterally connecting between precast floor slab 9 in the connecting node
Connect muscle 91 and rear pouring concrete be attached, between precast floor slab 9 and double web H shaped steel using first reinforce connecting rod 41 and after
Pouring concrete is attached, and effectively increases the globality and shock resistance of connecting node.
It is to be noted that the connecting node, is not limited to the technical measures that above section is mentioned in the embodiment, it can also
Deformed bar 5, second in embodiment one is reinforced into connecting rod 42 and third reinforces the measures such as connecting rod 43 and carries out comprehensive make
With.
Embodiment three：
As shown in figure 8, a kind of double web H shaped steel, with embodiment one the difference is that, the both ends of one of flange plate 1 to
It is bent to form card adapter plate 14 outside.
As shown in figure 9, a kind of connecting node of double web H shaped steel and concrete prefabricated board, including prefabricated panel 7 and the reality
Apply double web H shaped steel described in example.Double web H shaped steel are arranged in the top surface of prefabricated panel 7, and two pieces of card adapter plates 14 are blocked prefabricated
Wallboard 7.
The structural strengthening connection of double web H shaped steel and prefabricated panel 7, structure are more secured.
As shown in Figure 10, two structures in embodiment two and the embodiment can also be combined, forms dry wall
The connecting node of plate 7, double web H shaped steel and 9 three of precast floor slab, keeps building more secured, shock resistance is more preferable.
Example IV：
The difference is that, as shown in figure 11, section steel beam bottom is not provided with card adapter plate 14, but is vertically installed with embodiment three
Connect reinforcing bar 15.As shown in figure 12, the second post-cast strip 105 is set between the top surface of prefabricated panel 7 and double web H shaped steel bottom surface；
The top of prefabricated panel 7 is provided with embedded bar 71, and embedded bar 71 stretches out the part of prefabricated panel 7 and to connect reinforcing bar 15 affixed,
It can be welding.Filling concrete, two blocks of flange plates 1 up and down of double web H shaped steel are carried out to the second post-cast strip 105 for convenience
On offer through-hole 13, cavity inner concrete is connect with 105 concrete of the second post-cast strip by through-hole 13.
Further, as shown in figure 13, it is provided through strengthened connection bar 16, strengthened connection bar vertically in upper lower through-hole 13
16 can be peg or regular reinforcement.
As shown in figure 14, the end of the stretching of embedded bar 71 prefabricated panel 7 is provided with enlarged footing 103, connection reinforcing bar 15
Enlarged footing 103 is arranged in end（It is not drawn into figure）, embedded bar 71 with connect reinforcing bar 15 with sleeve 101 connect.（Enlarged footing 103
It is introduced in the last paragraph of article with the structure and connection type of sleeve 101）
Likewise, as shown in figure 15, two structures in embodiment two and the embodiment are combined, formation prefabricated panel 7,
The connecting node of double web H shaped steel and 9 three of precast floor slab, keeps building more secured, shock resistance is more preferable.
In addition, as shown in figure 16, above-described double web H shaped steel can be replaced with square steel tube, can equally be risen
Two vertical tube walls to corresponding effect, square steel tube can be used as two webs 2.
Tube-in-tube structure and attaching method thereof is introduced：
Sleeve 101 may be used closed-entry reinforced bar sleeve and stretch into fastening piece type sleeve outside.
（Since connection reinforcing bar 15, embedded bar 71 above is both provided with enlarged footing 103, so connection hereinafter
Muscle 102 represents both the above reinforcing bar and illustrates.The component of 101 both sides of sleeve is illustrated by taking prefabricated panel 7 as an example）
Closed-entry reinforced bar sleeve：
As shown in figure 17, closed-entry reinforced bar sleeve includes cylinder 6 and is integrally connected to the necking 61 at 6 both ends of cylinder, is opened on cylinder 6
Equipped with several equally distributed injected holes 62, flowed into inside cylinder 6 convenient for cement mortar；In conjunction with Figure 18, necking 61 is round mouth, contracting
Mouthful 61 inner walls are conical surface-shaped, and the larger one end of circular conical surface is towards the inside of cylinder 6；In conjunction with Figure 19, closed-entry reinforced bar sleeve
Connection structure is made of dowel 102 and cylinder 6, and 102 one end of dowel is pre-buried to be fixedly connected on inside prefabricated panel 7, another
End is exposed at 7 outside of prefabricated panel and is connected with enlarged footing 103 in one end end far from prefabricated panel 7, enlarged footing 103
Outer wall radial dimension is more than the outer wall radial dimension of dowel 102 and the inner wall radial dimension less than necking 61, and enlarged footing 103 can
It is stretched into inside cylinder 6 from necking 61.
As shown in figure 20, cement mortar is after injected hole 62 flows into the inside of cylinder 6 and solidifies and form concrete, enlarged footing
103 can be fixed on inside cylinder 6, and the dowel 102 that can limit 6 both ends of cylinder moves extraction towards the direction being located remotely from each other
Cylinder 6, to the prefabricated panel 7 to both ends（Rectangular block shape structure of the dowel 102 far from 6 one end of cylinder is prefabricated in Figure 20
The schematic diagram of wallboard 7）It is attached, improves the bonding strength between two prefabricated panels 7.Enlarged footing 103 is close to dowel 102
One end be round platform planar, enlarged footing 103 close to one end of prefabricated panel 7 be less than the other end；For ease of narration, the circle of necking 61
The conical surface is defined as transition circular conical surface 611, by 611 integrally connected of transition circular conical surface between 6 end of necking 61 and cylinder, is connecting
After muscle 102 is by the active force for extracting cylinder 6 direction, round table surface squeezes concrete, and concrete is by squeezing action power（In Figure 20
The direction of F arrow meanings is the schematic diagram of force direction）Transition circular conical surface 611 is passed to, transition circular conical surface 611 generates anti-
Active force has component radially to enlarged footing 103, radially compresses enlarged footing 103, and therefore, transition circular conical surface 611 can be with
The load for making cylinder 6 and internal concrete carrying bigger, improves the company between dowel 102 and enlarged footing 103 and cylinder 6
Connect intensity.
Compared with existing grout sleeve, which does not need individual grouting operation, but in casting concrete, coagulation
Soil paste liquid enters the connection that cylinder 6 completes dowel 102, and operation is more convenient and does not need special grouting material, saves
About cost.It transmits further, since the program is depended on pressure, is stung by cohering between grouting material and reinforcing bar compared to grout sleeve
It closes, connection is relatively reliable.
The shape of necking 61 can be round, can also be the various shapes such as rectangular, strip and ellipse, enlarged footing
103 section is adapted with the shape of necking 61.It is effectively transferred to cylinder 6 in order to make the pressure of enlarged footing 103 pass through concrete
On, the size big 1 ~ 5mm, preferably 2 ~ 3mm of the size ratio enlarged footing 103 of necking 61.
As shown in figure 21, when connection be two reinforcing bars of vertical state when, in order to by sleeve 101 before casting concrete
It can be more easily temporarily fixed at the docking location of two dowels 102, be unlikely to slide.So position in 6 inner wall of cylinder
Set the barrier element 64 for being connected with and enlarged footing 103 being prevented to run through sleeve 101.Barrier element 64 can be located at 6 middle circle of cylinder
Sheet.Further, in order to allow cement mortar to be flowed freely in cylinder 6, barrier element 64 is arranged to hollow annular shape,
Internal radius is less than the diameter of enlarged footing 103.Alternatively, barrier element 64 can also be radially be arranged the bar along cylinder 6
Part.
Stretch into fastening piece type sleeve outside:
As shown in Figure 22 and Figure 23, it includes cylinder 6, clamping block 65, shrapnel 66 to stretch into fastening piece type sleeve outside, and the both ends of cylinder 6 are equal
The blocked hole 651 for 65 grafting of clamping block is offered, injected hole 62 is offered on cylinder 6.The outside of shrapnel 66 one end and cylinder 6
Face is mutually fixedly connected, and one end that the other end and the clamping block 65 of shrapnel 66 are located on the outside of cylinder 6 is mutually fixedly connected.
102 one end of dowel is fixedly connected with enlarged footing 103, and the radial dimension of enlarged footing 103 is more than the diameter of dowel 102
To size, enlarged footing 103 can be inserted into from the port of cylinder 6 inside cylinder 6.In insertion process, enlarged footing 103 pushes clamping block 65
Flexible deformation occurs for band spring plate 66 when being moved towards the direction far from 6 central axis of cylinder, and clamping block 65 is crossed in enlarged footing 103
Later, shrapnel 66 gradually restores the deformation insertion reset of cylinder 6, and limitation enlarged footing 103 extracts cylinder 6.
When post-cast strip casting concrete around cylinder 6, cement mortar can be flowed into from the two-port and injected hole 62 of cylinder 6
Inside cylinder 6, solid concrete is formed after cement slurry sets, dowel 102 is made to be fixed on inside cylinder 6, to realize two
The connection of root dowel 102.
In addition it should be pointed out that 4 sleeve correlations that the applicant submitted on April 8th, 2018 may be used in sleeve
Utility model patent, application number is respectively 201810306670.4,201810307419.X, 201810307420.2 and
201810307967.2。
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this
It is all protected by Patent Law in the right of invention.
Claims (15)
1. a kind of double web H shaped steel, it is characterised in that：
Including two blocks of flange plates（1）With two blocks of webs（2）, two blocks of flange plates（1）It is mutually parallel, two blocks of webs（2）
It is mutually parallel, the web（2）Vertically it is fixed in two blocks of flange plates（1）Between；
Two blocks of webs（2）With two blocks of flange plates（1）Constitute cavity（3）.
2. a kind of double web H shaped steel according to claim 1, it is characterised in that：At least one block of flange plate（1）On offer
Several through-holes（13）, the through-hole（13）Positioned at cavity（3）In range.
3. a kind of double web H shaped steel according to claim 2, it is characterised in that：It further include the first reinforcement connecting rod（41）；
Two blocks of flange plates（1）For the first flange plate（11）With the second flange plate（12）；First reinforces connecting rod（41）Across first edge of a wing
Plate（11）On through-hole（13）, first reinforces connecting rod（41）One end and the second flange plate（12）It is vertical affixed, other end dew
Go out the first flange plate（11）.
4. a kind of double web H shaped steel according to claim 1, it is characterised in that：The web（2）For corrugated web（8）,
That is web（2）Length direction along H profile steel is sinusoidal shape.
5. a kind of double web H shaped steel according to claim 1, it is characterised in that：Cavity（3）Inside it is perfused with concrete.
6. a kind of double web H shaped steel according to claim 1, it is characterised in that：Cavity（3）Interior close flange plate（1）Place
It is provided with deformed bar identical with double web H shaped steel length directions（5）Or prestress wire.
7. a kind of double web H shaped steel according to claim 1, it is characterised in that：It further include the second reinforcement connecting rod（42）,
Second reinforces connecting rod（42）Positioned at cavity（3）It is interior, vertically it is fixed in flange plate（1）Inner surface.
8. a kind of double web H shaped steel according to claim 1, it is characterised in that：Further include that third reinforces connecting rod（43）,
Third reinforces connecting rod（43）Vertically it is fixed in flange plate（1）Outer surface.
9. a kind of double web H shaped steel according to claim 1, it is characterised in that：One of flange plate（1）Both ends to
It is bent to form card adapter plate outside（14）.
10. a kind of double web H shaped steel according to claim 1, it is characterised in that：Two blocks of flange plates（1）Or in which one piece
Flange plate（1）Lateral surface be connected with connection reinforcing bar（15）.
11. a kind of double web H shaped steel according to claim 10, it is characterised in that：Connect reinforcing bar（15）End set
There is enlarged footing（103）.
12. a kind of connecting node of double web H shaped steel and concrete prefabricated board, it is characterised in that：
Including two blocks of precast floor slabs（9）With double web H shaped steel as described in claim 3；
Two blocks of precast floor slabs（9）Positioned at its first flange plate of double web H shaped steel（11）Same side, two blocks of precast floor slabs
（9）Between form the first post-cast strip（104）, the first post-cast strip（104）Casting concrete；Precast floor slab（9）It is poured after first
Band（104）End face be provided with laterally attached muscle（91）, the laterally attached muscle（91）A part is embedded in precast floor slab（9）
Interior, a part stretches out precast floor slab（9）；
Two blocks of precast floor slabs（9）Laterally attached muscle（91）And the first of double web H shaped steel reinforces connecting rod（41）Mutually interconnect
It connects.
13. a kind of connecting node of double web H shaped steel and concrete prefabricated board, it is characterised in that：Including prefabricated panel（7）Such as
Double web H shaped steel described in claim 9, double web H shaped steel are arranged in prefabricated panel（7）Top surface, two pieces of card adapter plates（14）
Block prefabricated panel（7）.
14. a kind of connecting node of double web H shaped steel and concrete prefabricated board, it is characterised in that：Including prefabricated panel（7）Such as
Double web H shaped steel according to any one of claims 10, double web H shaped steel are arranged in prefabricated panel（7）Top；Prefabricated panel（7）'s
The second post-cast strip is set between top surface and double web H shaped steel bottom surface（105）；Prefabricated panel（7）Top is provided with embedded bar
（71）, embedded bar（71）Stretch out prefabricated panel part with connect reinforcing bar（15）It is affixed；Two pieces of wings up and down of double web H shaped steel
Listrium（1）On offer through-hole（13）；Cavity（3）Inner concrete and the second post-cast strip（105）Concrete passes through through-hole（13）
Connection.
15. the connecting node of double web H shaped steel and concrete prefabricated board according to claim 14, it is characterised in that：In advance
Bury reinforcing bar（71）Stretch out prefabricated panel（7）End be provided with enlarged footing（103）, connect the end setting enlarged footing of reinforcing bar
（103）, embedded bar（71）With connect reinforcing bar（15）Use sleeve（101）Connection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810439494.1A CN108412122A (en) | 2018-05-09 | 2018-05-09 | Double web H shaped steel and its connecting node with concrete prefabricated board |
| PCT/CN2019/085991 WO2019214638A1 (en) | 2018-05-09 | 2019-05-08 | Dual-web h-shaped steel, and connecting node of dual-web h-shaped steel and concrete precast slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810439494.1A CN108412122A (en) | 2018-05-09 | 2018-05-09 | Double web H shaped steel and its connecting node with concrete prefabricated board |
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| Publication Number | Publication Date |
|---|---|
| CN108412122A true CN108412122A (en) | 2018-08-17 |
Family
ID=63138407
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810439494.1A Pending CN108412122A (en) | 2018-05-09 | 2018-05-09 | Double web H shaped steel and its connecting node with concrete prefabricated board |
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| Country | Link |
|---|---|
| CN (1) | CN108412122A (en) |
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| CN109837994A (en) * | 2019-01-11 | 2019-06-04 | 温州东联市政工程有限公司 | A kind of Prefabricated reinforced concrete is whole to pour building structure and its construction method |
| WO2019214638A1 (en) * | 2018-05-09 | 2019-11-14 | Li Cangzhu | Dual-web h-shaped steel, and connecting node of dual-web h-shaped steel and concrete precast slab |
| CN111219014A (en) * | 2018-11-23 | 2020-06-02 | 韩国建设技术研究院 | Hollow composite beam using dual webs and method of constructing the same |
| CN111219017A (en) * | 2020-03-12 | 2020-06-02 | 中国矿业大学 | Concrete-filled steel tube component coated with concrete on two sides and manufacturing method thereof |
| CN111827553A (en) * | 2020-07-27 | 2020-10-27 | 福建兴港建工有限公司 | Prefabricated floor slab structure and installation method |
| CN112982143A (en) * | 2021-03-17 | 2021-06-18 | 黄河水利职业技术学院 | Double-web I-steel structure |
| CN113152691A (en) * | 2021-03-26 | 2021-07-23 | 中核建研城市更新有限公司 | Steel module splicing structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112982143A (en) * | 2021-03-17 | 2021-06-18 | 黄河水利职业技术学院 | Double-web I-steel structure |
| CN112982143B (en) * | 2021-03-17 | 2023-06-23 | 黄河水利职业技术学院 | Double-web I-steel structure |
| CN113152691A (en) * | 2021-03-26 | 2021-07-23 | 中核建研城市更新有限公司 | Steel module splicing structure |
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