CN113638533A - Prefabricated floor slab, detachable steel-concrete composite floor system and construction method thereof - Google Patents
Prefabricated floor slab, detachable steel-concrete composite floor system and construction method thereof Download PDFInfo
- Publication number
- CN113638533A CN113638533A CN202111074875.2A CN202111074875A CN113638533A CN 113638533 A CN113638533 A CN 113638533A CN 202111074875 A CN202111074875 A CN 202111074875A CN 113638533 A CN113638533 A CN 113638533A
- Authority
- CN
- China
- Prior art keywords
- prefabricated
- slab
- precast
- adjacent
- slabs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
Abstract
The invention discloses a prefabricated floor slab, a detachable steel-concrete composite floor and a construction method thereof, relating to the technical field of building engineering. The prefabricated floor slab comprises a plurality of prefabricated slabs, a reinforcement member, a plurality of reinforcing members and a reinforcing structure. The prefabricated plates are provided with lap joint sides and shear force sides, the lap joint sides of two adjacent prefabricated plates are detachably connected, and the shear force sides of two adjacent prefabricated plates are arranged at intervals. The reinforcing member is arranged on the end face of the shear side of the precast slab. The reinforcement is worn to establish between two adjacent reinforcements, and a plurality of reinforcements distribute along vertical direction. The reinforcing structure is poured between two adjacent reinforcing members. The prefabricated floor slab can ensure the reliability of the installation and the use of the prefabricated floor slab on a main structure and also can ensure the rapid and reliable detachment and the reuse of the prefabricated floor slab from the main structure.
Description
Technical Field
The invention relates to the technical field of building engineering, in particular to a prefabricated floor slab, a detachable steel-concrete composite floor and a construction method thereof.
Background
The composite floor system has good stress performance, can save the construction cost and is widely applied to the fields of building engineering and bridge engineering. Fabricated modular floor systems typically employ a wet seam to form a permanent connection with a body structure. Although a part of the prior art composite floor system is a detachable floor system, the prior detachable floor system generally adopts bolts to bolt a concrete floor and a steel beam into a whole, and the bolts are usually accompanied by excessive deformation after the floor structure is stressed, so that the subsequent disassembly is difficult or even impossible.
Therefore, there is a need for a prefabricated floor slab, a detachable steel-concrete composite floor slab and a construction method thereof to solve the above problems.
Disclosure of Invention
The invention aims to provide a prefabricated floor slab, a detachable steel-concrete composite floor and a construction method thereof, which can ensure the reliability of the prefabricated floor slab on the main structure and can also ensure the prefabricated floor slab can be quickly and reliably detached from the main structure for repeated use.
In order to achieve the technical effects, the technical scheme of the invention is as follows:
a precast floor slab comprising: the prefabricated plates are provided with lap joint sides and shear force sides, the lap joint sides of two adjacent prefabricated plates are detachably connected, and the shear force sides of two adjacent prefabricated plates are arranged at intervals; the reinforcing piece is arranged on the end face of the shear side of the precast slab; the reinforcing structure is poured between two adjacent reinforcing pieces; and the embedded assembly is embedded in the reinforced structure.
Further, the precast floor slab further includes: the embedded sleeve is embedded in the reinforcing structure; the fastener, the fastener detachably wears to establish in the embedded sleeve, the fastener is used for with the reinforcing structure fastening is on the major structure.
Further, the precast floor slab further comprises a filling structure, and the filling structure is detachably arranged between the end faces of the shear sides of two adjacent precast slabs and is positioned on the reinforcing structure.
Furthermore, a first step is arranged on the shearing force side of each prefabricated slab, the top wall of each reinforcing structure is flush with the horizontal plane of each first step, and each filling structure is arranged between the vertical planes of the first steps of two adjacent prefabricated slabs.
Further, a second step is arranged on the lap joint side of the precast slabs, the second step of one of the two adjacent precast slabs is arranged on the top wall of the precast slab, and the second step of the other precast slab is arranged on the bottom wall of the precast slab, so that the second steps of the two adjacent precast slabs are mutually overlapped and connected.
Further, the reinforcing member comprises corrugated web C-shaped steel, and the open end of one of the corrugated web C-shaped steel of two adjacent prefabricated panels is arranged towards the other corrugated web C-shaped steel.
A removable steel-concrete composite floor system, comprising: the frame beam defines a plurality of mounting units, a plurality of secondary beams arranged at intervals are arranged on the frame beam, and each secondary beam corresponds to a plurality of mounting units distributed along the vertical direction; a plurality of the prefab floor, the shear force side of two adjacent prefabricated plates of prefabricated floor establishes on the secondary beam, the reinforced structure of prefabricated floor establishes on the secondary beam, prefabricated floor still with the frame roof beam can be dismantled and be connected.
Furthermore, the frame beam defines an inner plate strip and a peripheral plate strip wrapped on the periphery of the inner plate strip, the inner plate strip and the peripheral plate strip both comprise a plurality of mounting units, the distribution direction of a plurality of lap joint sides arranged in the inner plate strip is parallel to the length direction of the secondary beam, and the distribution direction of the plurality of lap joint sides arranged in the peripheral plate strip is perpendicular to the length direction of the secondary beam.
Furthermore, the precast slabs are also provided with fixed sides, threaded sleeves are pre-buried in the fixed sides of the precast slabs, the precast slabs can be detachably connected with the frame beams through connecting structures in threaded connection with the threaded sleeves, and the fixed sides of two adjacent precast slabs are arranged on the frame beams at intervals.
A construction method of a detachable steel-concrete composite floor system is based on the detachable steel-concrete composite floor system and comprises the following steps: positioning the position of a pre-embedded assembly on a precast slab of the precast floor slab of the detachable steel-concrete composite floor slab by a three-dimensional laser scanning technology; processing a reinforcing piece, and installing the embedded assembly in a mould of the precast slab; pouring concrete in the mould to form the precast slab, pouring a reinforced structure between two adjacent reinforcing members, and numbering the precast slab after production; accurately positioning the installation position of the precast slab installed on the main body structure according to the serial number of the precast slab on a construction site, and applying tightening torque to the embedded assembly twice; and unscrewing the embedded components, dismantling all the prefabricated floor slabs from the main body structure, and loading the prefabricated floor slabs in sequence according to the numbers of the prefabricated slabs to be transported.
The invention has the beneficial effects that: according to the precast floor slab, the reinforcing member, the reinforcing structure and the embedded assembly are arranged on the shearing force side of the precast slab, so that a plurality of precast slabs can be reliably mounted on the main structure after being connected, the precast floor slab can be smoothly and reliably dismounted from the main structure, meanwhile, the lap joint side of the precast slabs can also realize reliable detachable connection, the precast floor slab can be further conveniently dismounted and recycled, and the precast floor slab can be stably and reliably used on the main structure and also has convenient dismounting capability.
According to the detachable steel-concrete composite floor, due to the prefabricated floor slabs, the reinforcing structures and the embedded assemblies between the shear sides of the prefabricated floor slabs, the prefabricated floor slabs can be stably and reliably connected to the secondary beams, and meanwhile the prefabricated floor slabs are detachably connected with the frame beams, so that the prefabricated floor slabs can be stably and reliably installed on the frame beams and the secondary beams after being installed on the installation units. When the prefabricated floor slab needs to be detached from the frame beam and the secondary beam, the pre-embedded assembly can be detached from the main body structure conveniently and reliably, so that the prefabricated floor slab can be detached from the secondary beam conveniently and quickly, the stable and reliable service performance of the detachable steel-concrete composite floor slab is well guaranteed, and the detachment turnover convenience of the detachable steel-concrete composite floor slab is improved.
According to the construction method of the detachable steel-concrete composite floor, the reliability of the prefabricated floor in installation and use on the main structure can be ensured, and the prefabricated floor can be quickly and reliably detached from the main structure for reuse.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic structural view of a precast floor slab according to an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of the enlarged structure at A in FIG. 1;
FIG. 3 is a schematic view of a portion of the enlarged structure at B in FIG. 1;
FIG. 4 is a schematic structural view of the overlapped side of two prefabricated panels according to the embodiment of the present invention;
fig. 5 is a schematic view illustrating an internal structure of a precast floor slab when installed on a sub-girder according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a reinforcement member provided in accordance with an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a prefabricated slab, a threaded sleeve and a connecting structure on a frame beam, wherein the prefabricated slab, the threaded sleeve and the connecting structure are provided by the embodiment of the invention;
FIG. 8 is a schematic structural diagram of a removable steel-concrete composite floor according to an embodiment of the present invention;
FIG. 9 is a schematic structural view of a prefabricated floor slab and a peripheral panel strip installation unit according to an embodiment of the present invention;
FIG. 10 is a schematic view of the construction of the interior panel strip installation unit and the prefabricated floor slab according to the embodiment of the present invention;
fig. 11 is a flowchart of a construction method of a detachable steel-concrete composite floor according to an embodiment of the present invention.
Reference numerals
1. Prefabricating a slab; 11. a lap joint side; 12. a shear side; 13. a fixed side; 14. a first step; 15. a second step; 2. a reinforcement; 21. a let position port; 3. a reinforcement; 4. a reinforcing structure; 51. pre-burying a sleeve; 52. a fastener; 6. filling the structure; 7. a buffering sound insulation member; 81. a threaded sleeve; 82. a connecting structure; 91. a frame beam; 92. a mounting unit; 93. a secondary beam; 94. peripheral plate belts; 95. and (4) inner plate belts.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The concrete structure of the precast floor slab of the embodiment of the present invention will be described with reference to fig. 1 to 10.
As shown in fig. 1 to 10, fig. 1 discloses a prefabricated floor slab including a plurality of prefabricated panels 1, a reinforcing member 2, a reinforcing structure 4, and pre-buried components. The prefabricated panels 1 are provided with lap joint sides 11 and shear force sides 12, the lap joint sides 11 of two adjacent prefabricated panels 1 are detachably connected, and the shear force sides 12 of two adjacent prefabricated panels 1 are arranged at intervals. The reinforcing member 2 is provided at an end surface of the shear side 12 of the prefabricated panel 1. The reinforcing structure 4 is cast between two adjacent reinforcing members 2. The pre-buried subassembly is pre-buried and is arranged in the reinforced structure 4.
It can be understood that, because the prefabricated panels 1 have the overlapping sides 11, the plurality of prefabricated panels 1 can be reliably connected after being overlapped, the working safety of the prefabricated panels is ensured, and the prefabricated panels can be conveniently disassembled, so that the prefabricated floor can be recycled after being disassembled.
Meanwhile, the precast slabs 1 are also provided with shear sides 12, the end faces of the shear sides 12 are provided with the reinforcing pieces 2, the reinforcing pieces 2 have a reliable friction pressure-bearing function, a reinforced structure 4 can be conveniently poured between the shear sides 12 of the two adjacent precast slabs 1, and the reinforced structure 4 has high strength and high shear rigidity, so that the reinforced structure can be matched with the reinforcing pieces 2, firm connection of the two adjacent precast slabs 1 is achieved, and the strength and rigidity after the precast slabs 1 are connected can be improved.
Furthermore, because it is provided with pre-buried subassembly still to bury in the reinforced structure 4 in advance, can also dismantle through pre-buried subassembly and connect on the major structure after making a plurality of prefabricated plates 1 connect gradually, and reinforced structure 4 has stronger shear rigidity and intensity again, can make pre-buried subassembly guarantee the fastness that pre-buried subassembly connects the major structure and reinforced structure 4 when fixing prefabricated plate 1 on the major structure, can make pre-buried subassembly exert and also keep original state after tightening the moment, thereby guarantee the installation reliability of precast floor on the major structure, also can prevent when pre-buried subassembly is dismantled from the major structure, the problem that the precast floor can't be dismantled to the too big prefabricated floor that leads to sliding that produces between pre-buried subassembly and the reinforced structure 4 and the major structure, thereby guaranteed that the precast floor can accomplish smoothly and demolish.
According to the precast floor slab of the embodiment, the shearing force side 12 of the precast slab 1 is provided with the reinforcing part 2, the reinforcing structure and the embedded components, so that the precast slab 1 can be reliably installed on the main structure after being connected, the precast floor slab can be smoothly and reliably detached from the main structure, meanwhile, the lap joint side 11 of the precast slab 1 can also be reliably detachably connected, the precast floor slab can be further conveniently detached and recycled, and the precast floor slab can be stably and reliably used on the main structure and has convenient detachment capability.
In some specific embodiments, as shown in fig. 5, the prefabricated floor slab further includes a plurality of reinforcing members 3, the reinforcing members 3 are inserted between two adjacent reinforcing members 2, and the plurality of reinforcing members 3 are distributed in the vertical direction.
It can be understood that the reinforcing member 3 can further improve the strength and the shearing resistance of the reinforcing structure 4, and also can play a role of a pin bolt for connecting the prefabricated panels 1 and the reinforcing structure, thereby further improving the firmness of two adjacent prefabricated panels 1 when the prefabricated panels are connected through the reinforcing member 2 and the reinforcing structure 4.
In some specific embodiments, the reinforcing structure 4 comprises ultra-high performance concrete.
It can be understood that the ultra-high performance concrete has reliable strong shear rigidity and strength performance, can ensure that the pre-embedded components are not easy to slide greatly between the reinforcing structure 4 when being assembled and disassembled on the main structure, and ensure that the precast floor slab is smoothly disassembled on the main structure. Of course, in other embodiments of the present invention, other reinforcing structures 4 with strong shear rigidity and strength may be selected, and the specific material thereof may be determined according to actual requirements without specific limitations.
In some embodiments, as shown in fig. 5, the fastener inserts include a fastener insert 51 and a fastener 52. The embedded sleeve 51 is embedded in the reinforcing structure 4. A fastener 52 is detachably inserted into the pre-buried sleeve 51, and the fastener 52 is used for fastening the reinforcing structure 4 on the main structure.
It can be understood that the pre-embedded sleeves 51 are pre-embedded in the reinforcing structure 4, so as to better ensure that the shear rigidity and strength of the reinforcing structure 4 can be better ensured without additionally forming connecting holes in the reinforcing structure 4 when the prefabricated floor slab is installed on the main structure. The fastener 52 is detachably provided in the fastener sleeve 51, i.e. the fastener 52 can be connected to the fastener sleeve 51 by passing it through the main structure, and the fastener 52 connects the reinforcing structure 4 and the main structure.
Specifically, in the present embodiment, the fastener 52 includes a friction-type high-strength bolt. By applying a tightening torque to the friction type high-strength bolt, the reinforcing structure 4 and the main body structure can be reliably connected by the friction type high-strength bolt. Of course, in other embodiments of the present invention, other fastening structures capable of applying a tightening torque can be adopted, and the specific material type can be determined according to actual requirements without specific limitations.
In some embodiments, as shown in fig. 5, the precast floor slab further comprises a filler structure 6, and the filler structure 6 is detachably provided between end faces of the shear sides 12 of two adjacent precast slabs 1 and on the reinforcing structure 4.
It can be understood that the filling structure 6 can embed the embedded components, so that the embedded components do not protrude out of the top wall of the precast slab 1, and the aesthetic property of the precast floor slab is better ensured. When the prefabricated floor slab is dismantled, the filling structure 6 is dismantled.
Specifically, in this embodiment, the filling structure 6 is made of silicone modified thermoplastic polyurethane, which has the advantages of high temperature resistance, wear resistance, water resistance and better adhesion, and can ensure the usability of the prefabricated floor slab and ensure that the filling structure 6 is not easy to fall off from between the two prefabricated slabs 1. In addition, it has flexibility, and can make the precast floor slab play the protection and buffering effect to reinforced structure 4 when transporting or using. Of course, in other embodiments of the present invention, the filling structure 6 may be made of other materials without specific limitation.
In some embodiments, as shown in fig. 2 and 5, the shear side 12 of the prefabricated panels 1 is opened with a first step 14, the top wall of the reinforcing structure 4 is flush with the horizontal plane of the first step 14, and the filling structure 6 is disposed between the vertical planes of the first steps 14 of two adjacent prefabricated panels 1.
It can be understood that, by providing the first step 14, the installation space of the filling structure 6 can be conveniently preset, and the end portion of the embedded component can be ensured to be arranged between the horizontal plane of the first step 14 and the top wall of the prefabricated slab 1, so that the end portion of the embedded component is ensured not to protrude out of the prefabricated slab 1, thereby not only facilitating the filling and installation of the filling structure 6, but also ensuring that the embedded component can be reliably hidden.
In some embodiments, as shown in fig. 3 and 4, the overlapping side 11 of the prefabricated panels 1 is opened with a second step 15, and the second step 15 of one of the two adjacent prefabricated panels 1 is opened at the top wall of the prefabricated panel 1, and the second step 15 of the other one is opened at the bottom wall of the prefabricated panel 1, so that the second steps 15 of the two adjacent prefabricated panels 1 are overlapped and connected with each other.
It can be understood that the lap joint sides 11 of the two prefabricated slabs 1 can be connected in the tongue-and-groove mode through the arrangement of the second step 15, the horizontal connection is difficult to ensure reliable transmission of horizontal force in the prefabricated floor slab, so that potential safety hazards exist in the structure of the prefabricated floor slab, the tongue-and-groove connection structure can play a role in occlusion friction between the two prefabricated slabs 1, horizontal load in the floor slab can be conveniently transmitted, the structural integrity of the prefabricated floor slab is ensured, and the follow-up dismounting and replacing processes are convenient.
In some specific embodiments, as shown in fig. 4, each prefabricated panel 1 is provided with a plurality of second steps 15 arranged at intervals on the overlapping side 11, so that a toothed connecting seam is formed when the overlapping sides 11 of two adjacent prefabricated panels 1 are overlapped.
It can be understood that the opening of the plurality of second steps 15 further facilitates the reliable transmission of vertical and horizontal loads by the plurality of tongue-and-groove connection structures 82 formed by the plurality of second steps 15 of the two adjacent prefabricated panels 1, thereby ensuring the safety of the prefabricated floor slab.
In some specific embodiments, the joint formed when the overlapping sides 11 of the two prefabricated panels 1 are overlapped is further poured with high-strength cement mortar or ultra-high performance concrete.
It can be understood that the integrity of the floor slab can be further enhanced after the high-strength cement mortar or the ultra-high performance concrete is poured at the connecting joint, and the use safety of the prefabricated floor slab is improved. In particular, when the precast floor slab is applied to a large span structure, high-strength cement mortar or ultra high performance concrete may be additionally cast at the joint. Therefore, the structure can be selected according to the actual construction condition without specific limitation.
In some embodiments, the second steps 15 of two adjacent prefabricated panels 1 are hinged to each other, so that the connection rigidity of the overlapped sides 11 of two adjacent prefabricated panels 1 can be further improved, and the safety of the prefabricated floor slab can be improved.
In some embodiments, as shown in fig. 4, the prefabricated floor slab further comprises a buffering insulator 7, and the buffering insulator 7 is provided on the second step 15.
It can be understood that the buffering soundproof member 7 has a good elasticity, and can achieve soundproof and vibration damping effects, thereby further improving the reliability when the two prefabricated panels 1 are connected through the overlapping side 11. Specifically, in this embodiment, the buffering sound-insulating member 7 includes a thermosetting composite rubber sound-insulating pad, which can achieve a reliable connection effect, and in other embodiments of the present invention, the buffering sound-insulating member 7 may be made of other materials without specific limitations.
In some embodiments, as shown in fig. 2, 5 and 6, the reinforcement member 2 comprises corrugated-web C-section steel, and the open end of one of the adjacent two prefabricated panels 1 is disposed toward the other corrugated-web C-section steel.
It can be understood that the cross section of corrugated web C-shaped steel is set to be C-shaped, so that the embedded assembly can penetrate through the corrugated web C-shaped steel and reliably fix the reinforcing structure 4 on the main body structure, and meanwhile, the reinforcing structure 4 can be conveniently poured between two adjacent corrugated web C-shaped steels.
Specifically, in the present embodiment, the corrugated web C-shaped steel is further provided with a relief opening 21 for passing through the reinforcing member 3.
Specifically, in the present embodiment, the corrugated web C-shaped steel is a corrugated plate, which can further improve the friction pressure-bearing effect of the corrugated web C-shaped steel, so as to further improve the shear rigidity and strength of the shear structure formed by the reinforcing member 2 and the reinforcing structure 4.
As shown in fig. 8 to 10, the present invention also discloses a removable steel-concrete composite floor system, which comprises a frame beam 91 and a plurality of prefabricated floor slabs as described above. The frame beam 91 defines a plurality of mounting units 92, and a plurality of secondary beams 93 are arranged on the frame beam 91 at intervals, and each secondary beam 93 corresponds to a plurality of mounting units 92 distributed along a plurality of vertical directions. The shearing force sides 12 of two adjacent prefabricated plates 1 of the prefabricated floor slab are arranged on the secondary beam 93, the embedded components of the prefabricated floor slab are detachably arranged on the secondary beam 93, and the prefabricated floor slab is also detachably connected with the frame beam 91.
According to the detachable steel-concrete composite floor system provided by the embodiment of the invention, due to the prefabricated floor slabs, the reinforcing structures 4 and the embedded assemblies between the shear sides 12 of the prefabricated floor slabs can ensure that the prefabricated floor slabs are stably and reliably connected to the secondary beams 93, and meanwhile, the prefabricated floor slabs are detachably connected with the frame beams 91, so that the prefabricated floor slabs can be stably and reliably installed on the frame beams 91 and the secondary beams 93 after being installed on the installation units 92. When the prefabricated floor slab needs to be detached from the frame beams 91 and the secondary beams 93, the pre-embedded assemblies can be detached from the main body structure conveniently and reliably, so that the prefabricated floor slab can be detached from the secondary beams 93 conveniently and quickly, the prefabricated floor slab can be detached from the frame beams 91 quickly, the stable and reliable service performance of the detachable steel-concrete composite floor slab is well guaranteed, and the detaching and transferring convenience of the detachable steel-concrete composite floor slab is improved.
In some embodiments, as shown in fig. 8 to 10, the frame beam 91 defines an inner plate strip 95 and a peripheral plate strip 94 wrapped around the inner plate strip 95, the inner plate strip 95 and the peripheral plate strip 94 each include a plurality of mounting units 92, the distribution direction of the plurality of overlapping sides 11 disposed in the inner plate strip 95 is parallel to the length direction of the secondary beam 93, and the distribution direction of the plurality of overlapping sides 11 disposed in the peripheral plate strip 94 is perpendicular to the length direction of the secondary beam 93.
It can be understood that through the structural arrangement, the problem of through seam damage of a plurality of prefabricated floor slabs after being installed on the frame beams 91 and the secondary beams 93 can be well prevented, and therefore the safety and the reliability of the detachable combined type floor system in use can be ensured.
In some embodiments, as shown in fig. 7, the prefabricated panels 1 further have fixed sides 13, the prefabricated panels 1 are pre-embedded with threaded sleeves 81 on the fixed sides 13, the prefabricated panels 1 can be detachably connected with the frame beams 91 through connecting structures 82 screwed in the threaded sleeves 81, and the fixed sides 13 of two adjacent prefabricated panels 1 are arranged on the frame beams 91 at intervals.
It will be appreciated that the detachable attachment of the precast panel 1 to the frame beam 91 is achieved by the attachment formation 82 which is threadedly attached to the threaded sleeve 81 at the fixed side 13 of the precast panel 1 by means of the threaded sleeve 81 being pre-embedded at the fixed side 13 of the precast panel 1.
Specifically, in this embodiment, the prefabricated floor slab includes at least four prefabricated panels 1 on one installation unit 92, and can be divided into two cross-middle plates and two side-cross plates, two shear sides 12 of the cross-middle plates are connected to each other and provided on the secondary beam 93, two lap sides 11 of the cross-middle plates are detachably connected to the lap sides 11 of the two side-cross plates, respectively, and fixing sides 13 of the two side-cross plates are detachably connected to the frame beam 91, respectively.
In some embodiments, the shear sides 12 of two adjacent prefabricated slabs 1 are also arranged on the frame beam 91, and the prefabricated floor slabs and the frame beam 91 are also detachably connected through embedded components.
It can be understood that, according to the actual construction requirement, for example, during the structural construction of the frame beam 91 and the secondary beam 93 with large span, the installation firmness of the precast floor slab on the frame beam 91 and the secondary beam 93 needs to be further ensured, so that the precast floor slab and the frame beam 91 can be detachably connected through the embedded component, thereby ensuring the installation reliability and the safety of the detachable steel-concrete composite floor system, remarkably reducing the detaching difficulty of the detachable steel-concrete composite floor system, and facilitating the turnover and use.
Example (b):
a removable steel-concrete composite floor according to one embodiment of the present invention will be described with reference to fig. 1 to 10.
The prefabricated floor slab of this embodiment comprises a plurality of prefabricated floor slabs as described hereinbefore and frame girders 91.
The frame beam 91 defines a plurality of mounting units 92, and a plurality of secondary beams 93 are arranged on the frame beam 91 at intervals, and each secondary beam 93 corresponds to a plurality of mounting units 92 distributed along a plurality of vertical directions.
The shearing force sides 12 of two adjacent prefabricated plates 1 of the prefabricated floor slab are arranged on the secondary beam 93, the embedded components of the prefabricated floor slab are detachably arranged on the secondary beam 93, and the prefabricated floor slab is also detachably connected with the frame beam 91.
The prefabricated floor slab comprises a plurality of prefabricated slabs 1, a reinforcing member 2, a reinforcing structure 4, a plurality of reinforcing members 3, a pre-embedded assembly, a filling structure 6 and a buffering sound insulation member 7.
The prefabricated panels 1 are provided with lap joint sides 11 and shear force sides 12, the lap joint sides 11 of two adjacent prefabricated panels 1 are detachably connected, and the shear force sides 12 of two adjacent prefabricated panels 1 are arranged at intervals. The overlapping side 11 of the prefabricated panels 1 is provided with a second step 15, the second step 15 of one of the two adjacent prefabricated panels 1 is arranged on the top wall of the prefabricated panel 1, and the second step 15 of the other one of the two adjacent prefabricated panels 1 is arranged on the bottom wall of the prefabricated panel 1, so that the second steps 15 of the two adjacent prefabricated panels 1 are overlapped and connected with each other. The lapping side 11 of each prefabricated plate 1 is provided with a plurality of second steps 15 which are arranged at intervals, so that a toothed connecting seam is formed when the lapping sides 11 of two adjacent prefabricated plates 1 are lapped. The second steps 15 of two adjacent prefabricated panels 1 are hinged to each other. The cushioning insulator 7 is provided on the second step 15.
The reinforcing member 2 is provided at an end surface of the shear side 12 of the prefabricated panel 1. The reinforcing structure 4 is cast between two adjacent reinforcing members 2. The reinforcing member 2 comprises corrugated web C-shaped steel, the section of the corrugated web C-shaped steel is C-shaped, and the open end of one of the two adjacent prefabricated plates 1 is arranged towards the other corrugated web C-shaped steel.
The embedded component is embedded in the reinforcing structure 4 and can be detachably connected with the main body structure. The fastener insert assembly includes an insert sleeve 51 and a fastener 52. The embedded sleeve 51 is embedded in the reinforcing structure 4. A fastener 52 is detachably inserted into the pre-buried sleeve 51, and the fastener 52 is used for fastening the reinforcing structure 4 on the main structure. The shearing side 12 of each prefabricated slab 1 is provided with a first step 14, the top wall of the reinforcing structure 4 is flush with the horizontal plane of the first step 14, and the filling structure 6 is arranged between the vertical planes of the first steps 14 of two adjacent prefabricated slabs 1.
The reinforcing member 3 is arranged between two adjacent reinforcing members 2 in a penetrating manner, and the plurality of reinforcing members 3 are distributed along the vertical direction.
The filling structure 6 is detachably arranged between the end faces of the shearing sides 12 of two adjacent prefabricated panels 1 and is positioned on the reinforcing structure 4.
The prefabricated panels 1 also have fixed sides 13, the prefabricated panels 1 are pre-embedded with threaded sleeves 81 on the fixed sides 13, the prefabricated panels 1 can be detachably connected with the frame beams 91 through connecting structures 82 in threaded connection with the threaded sleeves 81, and the fixed sides 13 of two adjacent prefabricated panels 1 are arranged on the frame beams 91 at intervals.
The frame beam 91 defines an inner plate strip 95 and a peripheral plate strip 94 wrapped on the periphery of the inner plate strip 95, the inner plate strip 95 and the peripheral plate strip 94 both include a plurality of mounting units 92, the distribution direction of a plurality of overlapping sides 11 arranged in the inner plate strip 95 is parallel to the length direction of the secondary beam 93, and the distribution direction of a plurality of overlapping sides 11 arranged in the peripheral plate strip 94 is perpendicular to the length direction of the secondary beam 93.
As shown in fig. 11, the invention also discloses a construction method of the detachable steel-concrete composite floor, which comprises the following steps:
s1, accurately positioning the construction positions of pre-buried structures such as a pre-buried sleeve 51, a threaded sleeve 81 and the like on the precast slab 1 through a three-dimensional laser scanning technology, and finishing the processing of the first step 14 and the second step 15 on the precast slab 1 through a mould;
s2, processing the reinforcement 2, forming an escape opening 21 in the reinforcement 2, and installing pre-embedded structures such as a pre-embedded sleeve 51 and a threaded sleeve 81 and a plurality of reinforcing members 3 in a mold.
And S3, pouring concrete in the mould to form the precast slab 1, pouring the reinforced structure 4 between two adjacent reinforcing members 2, sticking the buffering sound-insulating member 7 on the second step 15 after the maintenance is finished, and numbering the precast slab 1 after the production is finished.
And S4, accurately positioning the installation position of the precast slab 1 installed on the secondary beam 93 according to the number of the precast slab 1 at the construction site, screwing the fastener 52 on the embedded sleeve 51 and the secondary beam 93, and applying the screwing torque twice. After the termination, the filling structure 6 is filled between the adjacent first steps 14.
S5, positioning the precast slabs 1 at the frame beam 91, installing a connecting structure 82 in the threaded sleeve 81, wherein the connecting structure 82 is a single-side high-strength blind bolt, and after final screwing is finished, filling a gap between the threaded sleeve 81 and the connecting structure 82 with a filling structure 6 to finish the installation of the precast floor slabs on the secondary beam 93 and the frame beam 91.
S6, removing the prefabricated floor slabs on the secondary beam 93 and the frame beam 91, chiseling off the connecting seam at the second step 15, and unscrewing the connecting structure 82 at the frame beam 91 to remove the prefabricated slab 1 on the frame beam 91; melting the filling structure 6 above the secondary beam 93, and unscrewing the fasteners 52 to remove the prefabricated floor slab on the secondary beam 93; and loading the prefabricated plates 1 in sequence according to the serial numbers of the prefabricated plates.
In the description herein, references to the description of "some embodiments," "other embodiments," or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (10)
1. A precast floor slab, comprising:
the prefabricated plates (1) are provided with lap joint sides (11) and shear force sides (12), the lap joint sides (11) of two adjacent prefabricated plates (1) are detachably connected, and the shear force sides (12) of two adjacent prefabricated plates (1) are arranged at intervals;
the reinforcing piece (2) is arranged on the end face of the shearing force side (12) of the precast slab (1);
a reinforcing structure (4), wherein the reinforcing structure (4) is poured between two adjacent reinforcing pieces (2);
the pre-buried assembly is pre-buried in the reinforcing structure (4).
2. The precast floor slab of claim 1, further comprising:
the embedded sleeve (51), the embedded sleeve (51) is embedded in the reinforced structure (4);
the fastener (52), the fastener (52) is detachably worn in the embedded sleeve (51), and the fastener (52) is used for fastening the reinforcing structure (4) on the main structure.
3. The precast floor slab according to claim 1, further comprising a filler structure (6), wherein the filler structure (6) is detachably provided between end surfaces of the shear sides (12) of two adjacent precast slabs (1) and on the reinforcing structure (4).
4. The precast floor slab according to claim 3, wherein the shear side (12) of the precast slab (1) is opened with a first step (14), the top wall of the reinforcing structure (4) is flush with the horizontal plane of the first step (14), and the filling structure (6) is provided between the vertical planes of the first steps (14) of the adjacent two precast slabs (1).
5. The prefabricated floor slab as claimed in claim 1, wherein the overlapping side (11) of the prefabricated slab (1) is opened with a second step (15), and the second step (15) of one of the adjacent two prefabricated slabs (1) is opened at the top wall of the prefabricated slab (1) and the second step (15) of the other one is opened at the bottom wall of the prefabricated slab (1) so that the second steps (15) of the adjacent two prefabricated slabs (1) are overlapped and connected with each other.
6. A prefabricated floor slab according to claim 1, characterised in that said reinforcing element (2) comprises corrugated web C-section steel, and the open end of one of said corrugated web C-section steel of two adjacent prefabricated slabs (1) is disposed towards the other of said corrugated web C-section steel.
7. A removable steel-concrete composite superstructure, its characterized in that includes:
the frame beam (91) defines a plurality of mounting units (92), a plurality of secondary beams (93) arranged at intervals are arranged on the frame beam (91), and each secondary beam (93) corresponds to a plurality of mounting units (92) distributed along a plurality of vertical directions;
a plurality of precast floor slabs according to any of claims 1-6, the shear sides (12) of two adjacent precast slabs (1) of which are provided on the secondary beam (93), the pre-buried assembly of which is detachably provided on the secondary beam (93), the precast floor slabs being further detachably connected to the frame beam (91).
8. The removable steel-concrete composite floor according to claim 7, wherein the frame beam (91) defines an inner plate strip (95) and a peripheral plate strip (94) wrapped on the periphery of the inner plate strip (95), the inner plate strip (95) and the peripheral plate strip (94) both include a plurality of the mounting units (92), the distribution direction of the plurality of overlapping sides (11) arranged in the inner plate strip (95) is parallel to the length direction of the secondary beam (93), and the distribution direction of the plurality of overlapping sides (11) arranged in the peripheral plate strip (94) is perpendicular to the length direction of the secondary beam (93).
9. The removable steel-concrete composite floor according to claim 7, wherein the prefabricated slab (1) is further provided with a fixed side (13), the prefabricated slab (1) is pre-embedded with a threaded sleeve (81) on the fixed side (13), the prefabricated slab (1) can be detachably connected with the frame beam (91) through a connecting structure (82) in threaded connection with the threaded sleeve (81), and the fixed sides (13) of two adjacent prefabricated slabs (1) are arranged on the frame beam (91) at intervals.
10. A construction method of a detachable steel-concrete composite floor system, which is based on the detachable steel-concrete composite floor system of any one of claims 7 to 9, and is characterized by comprising the following steps:
s1, positioning the position of a pre-embedded assembly on a precast slab (1) of the precast floor slab of the detachable steel-concrete composite floor slab through a three-dimensional laser scanning technology;
s2, processing a reinforcing piece (2), and installing the embedded assembly in a mould of the precast slab (1);
s3, pouring concrete in the mould to form the precast slab (1), pouring a reinforced structure (4) between two adjacent reinforcing members (2), and numbering the precast slab (1) after production;
s4, accurately positioning the installation position of the precast slab (1) installed on the main body structure according to the serial number of the precast slab (1) on a construction site, and applying tightening torque to the embedded assembly twice;
s5, loosening the embedded assemblies, removing all the precast floor slabs from the main body structure, and loading the precast floor slabs (1) in sequence according to the numbers of the precast slabs to be transported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111074875.2A CN113638533A (en) | 2021-09-14 | 2021-09-14 | Prefabricated floor slab, detachable steel-concrete composite floor system and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111074875.2A CN113638533A (en) | 2021-09-14 | 2021-09-14 | Prefabricated floor slab, detachable steel-concrete composite floor system and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113638533A true CN113638533A (en) | 2021-11-12 |
Family
ID=78425822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111074875.2A Pending CN113638533A (en) | 2021-09-14 | 2021-09-14 | Prefabricated floor slab, detachable steel-concrete composite floor system and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113638533A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482374A (en) * | 2022-04-15 | 2022-05-13 | 中冶建筑研究总院有限公司 | Integrally-assembled steel-concrete composite beam connecting joint |
| CN117266428A (en) * | 2023-11-20 | 2023-12-22 | 西南石油大学 | Assembled vibration reduction floor slab and assembling method |
-
2021
- 2021-09-14 CN CN202111074875.2A patent/CN113638533A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482374A (en) * | 2022-04-15 | 2022-05-13 | 中冶建筑研究总院有限公司 | Integrally-assembled steel-concrete composite beam connecting joint |
| CN114482374B (en) * | 2022-04-15 | 2022-07-05 | 中冶建筑研究总院有限公司 | Integrally-assembled steel-concrete composite beam connecting joint |
| CN117266428A (en) * | 2023-11-20 | 2023-12-22 | 西南石油大学 | Assembled vibration reduction floor slab and assembling method |
| CN117266428B (en) * | 2023-11-20 | 2024-02-06 | 西南石油大学 | Assembled vibration reduction floor slab and assembling method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8166717B2 (en) | Stiffener for connecting prestressed concrete beam and method of constructing structure using the same | |
| CN113638533A (en) | Prefabricated floor slab, detachable steel-concrete composite floor system and construction method thereof | |
| CN109338866B (en) | Ultra-light combined beam structure suitable for large-span bridge and construction method thereof | |
| CN214005373U (en) | Connecting structure of precast concrete bridge deck and steel plate beam | |
| KR101107826B1 (en) | Slab-type box girder made by precast concrete and method constructing the bridge therewith | |
| CN210507091U (en) | Assembled prestressed combined box girder | |
| KR100615471B1 (en) | Steel plate girder bridge and it's construction method is using a steel composite horizontal beam | |
| KR100722400B1 (en) | Connecting structure for steel girder segments | |
| JP2872346B2 (en) | Prefab slab installation method | |
| KR101458737B1 (en) | Prestressed unit girder consisted of upper pit of end face and pit of cross section in girder and method constructing the bridge thereof | |
| WO2014169826A1 (en) | Pcss shear force coupled construction | |
| JP2004183232A (en) | Reinforcing method and reinforcement structure of steel structural material of construction structure | |
| CN215802550U (en) | Prefabricated floor and detachable steel-concrete composite floor | |
| CN217557315U (en) | Antidetonation coincide wall | |
| CN109235235B (en) | Longitudinal connection method for main beams at continuous part of steel-concrete composite bridge deck | |
| JP7316243B2 (en) | Floor slab joining method, floor slab renewal method | |
| KR101886744B1 (en) | Precast Half Deck for Roadway | |
| CN113700153A (en) | Connecting structure of assembled laminated slab and combination beam and construction method thereof | |
| CN111910517A (en) | Longitudinal bridge-direction joint connecting structure of UHPC short rib bridge deck and steel-UHPC combined bridge | |
| KR100948879B1 (en) | Charging style double steel box infrastructure | |
| KR20200139572A (en) | Bridge upper structure with rrecast slab | |
| JP5255543B2 (en) | Mixed girder joint structure | |
| SU926146A1 (en) | Steel and reinforced concrete span structure of bridge | |
| CN212270647U (en) | Joint connection structure of UHPC short rib bridge deck slab and steel-UHPC combined bridge | |
| JP2004124375A (en) | Construction method for composite floor panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |