CN212405651U

CN212405651U - Assembly type prestress continuous laminated floor

Info

Publication number: CN212405651U
Application number: CN202020363855.1U
Authority: CN
Inventors: 路雨虹
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2021-01-26
Anticipated expiration: 2030-03-20

Abstract

The utility model provides a continuous coincide superstructure of assembled prestressing force, relate to assembled coincide superstructure field, including polylith prefabricated floor and the skeleton roof beam of locating adjacent prefabricated floor between, prefabricated floor includes the pre-buried steel bar truss of plate body and a plurality of bottom in the plate body, each steel bar truss parallel arrangement, steel bar truss includes an upper chord reinforcing bar and two lower chord reinforcing bars, connect through the binder respectively between upper chord reinforcing bar and two lower chord reinforcing bars, each trough end and the lower chord steel bar connection of two binder, each crest end overlap formation of two binder is used for the fixed overlap joint position of upper chord reinforcing bar, the crest of each steel bar truss still corresponds the passageway that the strengthening rib that forms to be used for perpendicular to upper chord reinforcing bar passed, form the structure that the strengthening rib passed and carried out the step and keep off above the upper chord reinforcing bar by the passageway on overlap joint position simultaneously by the strengthening rib, the utility model discloses a prefabricated floor in the coincide has better structural strength.

Description

Assembly type prestress continuous laminated floor

Technical Field

The utility model relates to a continuous coincide superstructure of assembled prestressing force.

Background

The parameters of the prefabricated floor slab produced in a factory are accurately set and strictly controlled, the error is small, and the quality is more guaranteed compared with the field production, so that the floor slab in the prior art mostly adopts an assembly type construction method, the common assembly type floor slab is formed by paving the prefabricated floor slab on a prefabricated beam or a bearing wall body, and the prefabricated floor slab and the cast-in-place reinforced concrete laminated layer on the prefabricated floor slab form a laminated floor slab.

In order to increase the overall structural strength of the laminated floor system and ensure the construction quality of the floor system, a steel bar truss is preset in the prefabricated floor system, an upper chord steel bar, a lower chord steel bar and a web rib of the steel bar truss are connected through resistance spot welding to form the truss, the steel bar truss manufactured by the method has relatively low overall strength, and relatively low shock resistance in the actual use process; meanwhile, the laminated floor system needs to be lifted to a specified position by using a lifting tool in the construction process, and lifting points are arranged on the upper chord steel bars of the steel bar truss when the laminated floor system is lifted, so that certain potential safety hazards can be caused if the connection strength of the upper chord steel bars and the web bars is insufficient due to the large overall mass of the laminated floor system.

SUMMERY OF THE UTILITY MODEL

The utility model provides a have the higher continuous coincide superstructure of assembled prestressing force of security in the better structural strength simultaneous construction process.

The technical scheme of the utility model is realized like this: the prefabricated floor comprises a plurality of prefabricated floors and framework beams arranged between every two adjacent prefabricated floors, the prefabricated floors comprise plate bodies and a plurality of steel bar trusses with bottoms pre-embedded in the plate bodies, the steel bar trusses are arranged in parallel, each steel bar truss comprises an upper chord steel bar and two lower chord steel bars, the upper chord steel bar and the two lower chord steel bars are connected through wavy web reinforcements respectively, each trough end of each web reinforcement is connected with the lower chord steel bar, each crest end of each web reinforcement is overlapped to form an overlapping position for fixing the upper chord steel bar, each crest end of each web reinforcement is overlapped to form an X-shaped node, each crest end of each steel bar truss also correspondingly forms a channel for the reinforcing bar perpendicular to the upper chord steel bar to penetrate through, and a structure that the upper chord steel bar is fixed on the overlapping position while the reinforcing bar penetrates through the channel and is pressed and blocked above the upper chord steel bar step by step is formed.

Compared with the prior art, the scheme has the following beneficial effects:

(1) the integral strength of the composite floor slab is improved, and the reinforcing ribs are pressed and blocked above the upper chord steel bars relative to the reinforcing ribs inserted into the upper chord steel bars, so that the connection strength of the reinforcing ribs, the upper chord steel bars and the web ribs is further improved, and the integral structural strength of the composite floor slab is further improved.

(2) Make things convenient for the fixed of coincide floor later stage strengthening rib, compare in prior art with the structure of strengthening rib lug weld in web reinforcement crest department, can be directly insert the strengthening rib in the arc passageway that each steel bar truss went up crest top formation, convenient operation.

On the basis of the scheme, the structure is further improved in that a bending part is formed on the outer side of the wave trough of the web rib, and the web rib is hooked with the two lower chord reinforcing steel bars through the bending part.

Compare in prior art this scheme's beneficial effect does: the integral structure strength of the prefabricated floor slab is improved, and the anchoring strength between the steel bar truss and the slab body is enhanced by the bending of the V-shaped structure formed at the bottom of the web reinforcement.

On the basis of the above scheme, further improve as follows, the position correspondence of four angles of plate body upper and lower downside is equipped with the connecting seat, has seted up the spread groove on the connecting seat, and two adjacent plate bodies that pile up are connected with the bracing piece through the connecting seat that sets up on it, and the upper and lower end of bracing piece corresponds the connecting groove and forms the connecting portion that can peg graft in the spread groove.

On the basis of above-mentioned scheme, further improve as follows, the connecting seat inlays to be established in the plate body, and a side of connecting seat is located the tip of plate body, and the one end and the plate body outside intercommunication of spread groove form the structure that connecting portion inserted in the spread groove through the open end of spread groove.

Compare in prior art this scheme's beneficial effect does: the connecting seat can not influence the structural strength of the plate body and can not influence the lapping work between the plate body and the wall body, the connecting seat is embedded in the plate body and is level with the plate body, and the gap can not appear due to the existence of the connecting seat when the plate body is lapped on the wall body.

On the basis of the scheme, the connecting structure is further improved as follows, the connecting seat is partially embedded in the plate body and is used for being provided with a groove body matched with the connecting seat at the upper end part of the wall body lapped with the plate body, and the connecting seat on the lower side surface of the plate body is inserted into the groove body.

Compare in prior art this scheme's beneficial effect does: the connecting seat does not need to be taken out, so that the damage to the structural strength of the plate body is reduced, meanwhile, the part of the connecting seat, which is exposed out of the plate body, can be inserted into the groove body, the gap between the plate body and the wall body in the lap joint process is further prevented, and the positioning work in the lap joint of the plate body and the wall body is further facilitated due to the arrangement of the groove body.

On the basis of the scheme, the connecting groove is further improved to be in a T-shaped structure.

On the basis of the scheme, the support rod is further improved as follows, the connecting part of the rectangular rod-shaped structure of the support rod is of a rectangular plate-shaped structure, the connecting part is perpendicular to the support rod, and the support rod is inserted into the connecting groove through the connecting part.

Compare in prior art this scheme's beneficial effect does: the supporting work to two adjacent plate bodies in the stacking process of the prefabricated floor slabs is facilitated, the connecting portions at two ends of the supporting rod are directly inserted into the connecting grooves of the two plate bodies during use, and therefore the two adjacent stacked prefabricated floor slabs can be supported, and the steel bar trusses exposed out of the plate bodies are prevented from being extruded and deformed.

On the basis of the scheme, the installation groove for embedding the insulation board is further improved as follows, and an installation groove for embedding the insulation board is formed between any two adjacent steel bar trusses on the board body along the direction parallel to the upper chord steel bar.

Compare in prior art this scheme's beneficial effect does: the heated board is pour in coincide superstructure, further strengthens the heat preservation effect of coincide superstructure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a left side view of a prefabricated floor slab of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic view of a connection structure of the web bars, the upper chord steel bars and the lower chord steel bars in the direction B in fig. 1;

fig. 4 is a top view of the prefabricated floor slab of the present invention;

FIG. 5 is a schematic view of the connection structure between the connecting seat and the supporting rod of the present invention;

FIG. 6 is a schematic view of the connection structure of the middle web rib, the upper chord steel bar and the steel bar of the present invention;

fig. 7 is a schematic diagram of the relative positions of the heat-insulating plate and the composite floor slab of the present invention;

wherein: 1-plate body, 2-upper chord steel bar, 21-web bar, 22-lower chord steel bar, 3-connecting seat, 31-connecting groove, 32-supporting rod, 4-mounting groove, 41-heat preservation plate, a-reinforcing rib and b-cast-in-place layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The utility model discloses the concrete embodiment of assembled prestressing force coincide superstructure in succession, as shown in fig. 1-3:

the assembly type prestress continuous laminated floor system comprises a plurality of prefabricated floor slabs which are lapped above a wall body, a framework beam is arranged between the prefabricated floor slabs and is formed by bending and binding reinforcing steel bars, the framework beam is used for improving the connection strength between the prefabricated floor slabs, the prefabricated floor slabs comprise a cement-poured plate body 1 and a steel bar truss with the bottom embedded in the plate body 1, the steel bar truss comprises an upper chord reinforcing steel bar 2 and two lower chord reinforcing steel bars 22, the upper chord reinforcing steel bar 2 and the two lower chord reinforcing steel bars 22 are respectively connected through wavy web reinforcements 21, the wave troughs of the web reinforcements 21 are fixed with the lower chord reinforcing steel bars 22, the wave troughs of the web reinforcements 21 are bent to form bent parts, the web reinforcements 21 form hook structures through the bent parts formed by the wave troughs and the two lower chord reinforcing steel bars 22, the wave crests of the web reinforcements 21 are overlapped to form lapping positions for the upper chord lapping reinforcing steel bars, and the wave crests of the two web, the joint of two web bars 21 is welded, the connection mode of the upper chord steel bar 2 and the web bars 21 can be welding or binding mode, the top ends of the wave crests of the two web bars 21 are arc-shaped structures, the wave crests of the upper web bar 21 of each steel bar truss are correspondingly arranged, the top of the wave crest of each steel bar truss forms a channel for the reinforcing rib a to pass through, the reinforcing rib a is vertically inserted into the channel formed by the wave crests of each web bar 21 relative to the upper chord steel bar 2, the reinforcing rib a is inserted between the wave crests of the upper chord steel bar 2 and the web bars 21, wherein the web bars 21, the upper chord steel bar 2 and the reinforcing rib a can be fixed in a welding mode.

Plate body 1 is upper, the position department correspondence of four angles of lower both sides is equipped with connecting seat 3, connecting seat 3 is including but not limited to cuboid structure and cylinder structure, connecting groove 31 has been seted up on connecting seat 3, connecting groove 31 can run through connecting seat 3, connecting groove 31 can be "T" font structure, the position department at 1 four angles of two plate bodies is connected through bracing piece 32, the connecting groove 31 formation connecting portion are corresponded at the both ends of bracing piece 32, bracing piece 32 is pegged graft in connecting seat 3 through the connecting portion at its both ends, connect through bracing piece 32 when plate body 1 piles up, further be used for preventing to transport and deposit the steel bar truss who exposes on the in-process plate body 1 and receive the extrusion to take place to warp, also can further increase the transportation and deposit the height that piles up of in-.

The connecting seat 3 can be completely embedded in the plate body 1, the connecting seat 3 is poured along with the plate body 1, one side edge of the connecting seat 3 is superposed with the side edge of the plate body 1, a connecting groove 31 arranged on the connecting seat 3 is opened relative to the outside of the connecting seat 3, the connecting seat 3 is leveled with the plate body 1, the connecting seat 3 does not need to be taken out at the later stage, the structural strength of the connecting seat 3 cannot be damaged, and meanwhile, when the plate body 1 is lapped above a wall body, a gap cannot be generated between the wall bodies, so that the construction quality is ensured;

the connecting seat 3 can be partially embedded in the plate body 1, the side edge of the connecting seat 3 does not need to be flush with the side wall of the plate body 1, the connecting groove 31 of the connecting seat 3 is exposed outside the plate body 1, a groove body is formed in the wall body corresponding to the connecting seat 3 as required, the exposed length of the connecting seat 3 is smaller, the depth of the groove body is also shallow, the structural strength of the wall body cannot be damaged, the groove body is further convenient for positioning work when the plate body 1 is lapped with the wall body, and the construction of workers is facilitated to a certain extent;

connecting seat 3 can also be relative plate body 1 and can dismantle the structure of connecting, and connecting seat 3 can be through the bolt fastening on plate body 1, pulls down connecting seat 3 on by plate body 1 in the work progress, avoids plate body 1 and wall body overlap joint to produce the clearance, and connecting seat 3 can also carry out iterative use simultaneously.

In a preferred embodiment, as shown in fig. 4, an installation groove 4 for embedding an insulation board 41 is formed between any two adjacent steel bar trusses on the plate body 1 along a direction parallel to the upper chord steel bar 2, the lower end of the insulation board 41 is clamped on the precast floor slab through the installation groove 4, and the upper end of the insulation board 41 is poured in the cast-in-place layer b, so that the insulation effect of the laminated floor is further enhanced.

The utility model discloses a concrete using-way as follows:

after the prefabricated floor slab is processed, the stacked prefabricated floor slabs are supported by the support rods 32 during transportation and storage, the steel bar trusses exposed out of the prefabricated floor slabs are prevented from being extruded and deformed during transportation or storage, the insertion of the reinforcing ribs a on the upper side of the prefabricated floor slabs can be performed during construction or can be performed in advance along with the production of the prefabricated floor slabs, during construction, taking down the support rods 32, hoisting the prefabricated floor slabs to the upper part of the wall body by using a hoisting tool, arranging framework beams between the prefabricated floor slabs, pouring after the prefabricated floor slabs are lapped, so that the prefabricated floor slabs and the framework beams form a whole, and maintain the part of pouring, the construction of coincide superstructure is accomplished, the utility model discloses prefabricated floor structure to in the coincide superstructure further improves, has increased prefabricated floor's overall structure intensity, has prevented simultaneously that prefabricated floor from receiving the extrusion to take place to warp in the transportation and depositing.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An assembled prestressed continuous laminated floor system comprises a plurality of prefabricated floor slabs and framework beams arranged between adjacent prefabricated floor slabs, the prefabricated floor slab is characterized by comprising a slab body and a plurality of steel bar trusses with bottoms embedded in the slab body, wherein the steel bar trusses are arranged in parallel and comprise an upper chord steel bar and two lower chord steel bars, the upper chord steel bar and the two lower chord steel bars are connected through wavy web bars respectively, the trough ends of the two web bars are connected with the lower chord steel bars, the peak ends of the two web bars are overlapped to form an overlapping position for fixing the upper chord steel bar, the peak ends of the two web bars are overlapped to form an X-shaped node, the peaks of the steel bar trusses also correspondingly form a channel for the reinforcing bars perpendicular to the upper chord steel bar to pass through, and an upper chord web plate is fixed on the overlapping position while the reinforcing bars pass through the channel and further press and block the upper chord steel bar above the upper chord steel bar.

2. The prefabricated prestressed continuous laminated floor system according to claim 1, wherein the wave troughs of the web ribs are formed with bent portions to the outside to form a structure in which the web ribs are hooked to the two lower chord reinforcing bars through the bent portions.

3. The assembly-type prestressed continuous laminated floor slab as claimed in claim 1, wherein the upper and lower side surfaces of each of said plate bodies have connecting seats at four corners thereof, each of said connecting seats having a connecting groove, two adjacent stacked plate bodies being connected to said supporting rod by said connecting seats, the upper and lower ends of said supporting rod being connected to said connecting grooves to form connecting portions which can be inserted into said connecting grooves.

4. The assembly-type prestressed continuous laminated floor slab as claimed in claim 2, wherein said coupling seat is embedded in said slab body, one side edge of said coupling seat is located at an end portion of said slab body, and one end of said coupling groove is in communication with an outside of said slab body, thereby forming a structure in which said coupling portion is inserted into said coupling groove through an open end of said coupling groove.

5. The assembly-type prestressed continuous laminated floor system as claimed in claim 2, wherein the connecting seat is partially embedded in the plate body, and the upper end portion of the wall body overlapped with the plate body is provided with a groove body matched with the connecting seat, and the connecting seat on the lower side surface of the plate body is inserted into the groove body.

6. The assembled prestressed continuous laminated floor slab as claimed in claim 3, wherein said connecting grooves are formed in a "T" shape.

7. The assembly-type prestressed continuous laminated floor system according to claim 3, wherein said support rods are rectangular rod-like structures, the connecting portions are rectangular plate-like structures, the connecting portions are perpendicular to the support rods, and the support rods are inserted into the connecting grooves through the connecting portions.

8. The assembly type prestressed continuous laminated floor system according to any one of claims 1 to 7, wherein an installation groove for embedding the insulation board is formed between any two adjacent steel bar trusses on the plate body along a direction parallel to the upper chord steel bar.