CN214884744U - Half prefabricated formwork removal-free steel bar truss floor based on uhpc - Google Patents
Half prefabricated formwork removal-free steel bar truss floor based on uhpc Download PDFInfo
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- CN214884744U CN214884744U CN202120859379.7U CN202120859379U CN214884744U CN 214884744 U CN214884744 U CN 214884744U CN 202120859379 U CN202120859379 U CN 202120859379U CN 214884744 U CN214884744 U CN 214884744U
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Abstract
The utility model relates to a semi-prefabrication exempts from form removal steel bar truss floor based on uhpc comprises steel bar truss building carrier plate cast in situ steel bar truss concrete, and steel bar truss building carrier plate comprises uhpc die block, steel bar truss uhpc adhesive tape and steel bar truss uhpc anchor block, and uhpc die block is formed by pouring uhpc, and uhpc die block edge forms die connection structure; the steel bar truss is connected with the uhpc bottom die to form a whole through the steel bar truss uhpc adhesive tape and the steel bar truss uhpc anchoring block. The utility model discloses a exempt from to tear open mould steel bar truss building carrier plate, material durability can be good, and the quantity is low to lower engineering cost has realized the structure atress performance and the anti-seismic performance of assembled floor. The construction speed is fast, the connection is simple, the construction is convenient, the component weight is light, the transportation, the hoisting and the installation are convenient, and the prefabricated floor slab is high-quality.
Description
Technical Field
The utility model relates to a building structure technical field specifically is a semi-prefabrication exempts from form removal steel bar truss floor based on uhpc.
Background
Exempt from to tear open mould building carrier plate is building structure technical field, especially the important structure in assembled building field, exempts from among the prior art to tear open mould building carrier plate mainly have forms such as reinforced concrete superimposed sheet, steel bar truss solid mould building carrier plate, steel bar truss building carrier plate, nevertheless current structure has following defect:
(1) reinforced concrete superimposed sheet: the laminated slab is at least prefabricated 6cm and cast-in-place 7cm generally, the thickness reaches 130mm, the weight is large, materials are wasted, and the construction cost is far higher than that of a cast-in-place reinforced concrete floor slab due to the fact that the weight of a prefabricated part is large, transportation, hoisting and the like are difficult.
(2) Fixing a steel bar truss formwork floor support plate: the steel bar truss mould-fixing floor bearing plate is generally at least 2cm mould-fixing +11cm cast-in-place floor. The fixed mould is made of cement fiber board, etc., and the template is not removed after construction. But in floor slab stress analysis, the fixed die does not bear load, and the defects of material and space waste exist; and because the template is not dismantled, the floor thickness is greater than cast-in-place concrete floor.
(3) Steel bar truss floor support plate: the bottom die is made of thin steel plate, the bottom die is generally dismantled or a suspended ceiling is arranged after construction, construction procedures are increased, rust points are easy to remain at the bottom of the slab, and the manufacturing cost is higher than that of a cast-in-place reinforced concrete floor.
Although the existing patent technical literature is relatively improved, the existing patent technical literature still has many defects, which cause that the strength, the process or the cost are unsatisfactory when in actual engineering application, for example, the invention patent application CN111851829A which is published earlier discloses an assembled anti-cracking and non-stripping template, a floor support plate and a cast-in-place and non-stripping floor slab, which focuses on the problem of split joint cracking; granted utility model patent CN209620363U discloses a demolition-free steel bar truss floor deck with a high-strength fiber cement board as a bottom die, which, although paying attention to the strength of the board, adopts a high-strength fiber cement pressure plate pressed by a heavy-duty press as the bottom die, and adopts an embedded part to connect the steel bar truss with the cement pressure plate; granted utility model patent CN211572182U discloses an exempt from to tear open and decorate steel bar truss building carrier plate, it solve be that the current exempt from to tear open steel bar truss building carrier plate die block that exists among the prior art is fixed insecure technical problem with the truss, also adopts the built-in fitting, and the die block adopts ardealite, calcium silicate or gypsum pouring to make.
Therefore, the above patent documents have many defects in the aspects of material selection and strength of the bottom die, connection process and connection strength between the bottom die and the steel bar truss, and cooperativity between the bottom die and the floor slab main structure, which directly causes that the strength, stress, manufacturing cost and complexity of the construction process of the whole floor slab are difficult to meet the requirements of construction engineering.
Disclosure of Invention
In view of prior art's not enough, the utility model aims at providing a half prefabricated formwork removal-free steel bar truss floor based on uhpc to partly or whole defect of solving prior art.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a half prefabrication exempts from form removal steel bar truss floor based on uhpc comprises steel bar truss building carrier plate cast in situ steel bar truss concrete, and the prefabricated form removal-free steel bar truss building carrier plate of muscle truss building carrier plate for based on uhpc comprises uhpc die block, steel bar truss uhpc splicing tape and steel bar truss uhpc anchor piece, wherein:
the uhpc bottom die is formed by pouring uhpc, and a bottom die connecting structure is formed on the edge of the uhpc bottom die and used for connecting two adjacent uhpc bottom dies;
the steel bar trusses are longitudinally and uniformly arranged on the uhpc bottom die at intervals and are connected with the uhpc bottom die into a whole through steel bar truss uhpc adhesive tapes and steel bar truss uhpc anchoring blocks;
the steel bar truss uhpc bonding strips are longitudinally and uniformly arranged in multiple strips at intervals, correspond to the steel bar truss, are formed by pouring uhpc between the steel bar truss and the uhpc bottom die, and are used for connecting the steel bar truss and the uhpc bottom die;
the steel bar truss uhpc anchoring blocks are transversely and uniformly arranged in multiple groups at intervals, are formed by pouring uhpc between the steel bar truss and the uhpc bottom die and are used for connecting the steel bar truss and the uhpc bottom die;
and the reinforced truss concrete is poured on the uhpc bottom die.
In one embodiment, the bottom die connecting structure comprises an edge bevel edge and edge grooves, the edge grooves are uniformly spaced on the edge bevel edge, and the edge bevel edge forms a V-shaped groove when two adjacent uhpc bottom dies are spliced.
In one embodiment, the bevel edge of the edge is inclined at an angle of 45-60 degrees, the groove of the edge has a width of 20mm, a length of 50mm, a depth of 5mm and a spacing of 50 mm.
In one embodiment, the steel bar truss is composed of longitudinal bars and web bars, wherein one top longitudinal bar and two bottom longitudinal bars form an isosceles triangle section, and the web bars are roughly trapezoidal and symmetrically distributed on two sides of the longitudinal bars and are welded and fixed with the top longitudinal bar and the bottom longitudinal bar.
In one embodiment, the steel bar truss uhpc adhesive tape is formed by pouring uhpc between two bottom longitudinal bars of the same steel bar truss before a bottom die uhpc is solidified, the two bottom longitudinal bars serve as side dies for pouring uhpc, and the pouring thickness of uhpc is flush with or slightly higher than the upper surface of the bottom longitudinal bar.
In one embodiment, the steel bar truss uhpc anchor blocks are integrally poured with the steel bar truss uhpc adhesive tapes, and the steel bar truss uhpc anchor blocks are discontinuous between two adjacent steel bar trusses.
In one embodiment, the width of the steel bar truss uhpc anchor block is 50mm, the two ends in the length direction exceed the bottom longitudinal ribs of the steel bar truss by 20mm, and the height direction exceeds the bottom longitudinal ribs of the steel bar truss by 20 mm.
In one embodiment, a plurality of steel bar trusses are uniformly arranged on the uhpc bottom die at intervals, and the distance between every two adjacent steel bar trusses is 500-1000 mm.
In one embodiment, a stirrup steel bar is arranged in the reinforcement truss uhpc anchoring block, a protruding part of the stirrup steel bar protrudes from a trapezoidal area formed by the web rib and the bottom longitudinal rib and is welded and fixed with the bottom longitudinal rib, the protruding part is anchored in the reinforcement truss uhpc anchoring block, and two leg parts of the stirrup steel bar extend from the trapezoidal area formed by the web rib and the bottom longitudinal rib to two ends and are welded and fixed with the web rib and the bottom longitudinal rib.
In one embodiment, the steel bar truss is provided with transverse and longitudinal distributed steel bars.
In one embodiment, the uhpc base die is 10-12mm thick.
The utility model discloses beneficial effect for prior art is: the utility model discloses a half prefabricated formwork removal steel bar truss floor of exempting from based on uhpc, material durability can be good, and the quantity is low to lower engineering cost has realized the structure atress performance and the anti-seismic performance of assembled floor. The prefabricated floor slab has the advantages of low resource and energy consumption, green and environment-friendly industrialized production, high construction speed, simple connection, convenient construction, light component weight, convenient transportation, hoisting and installation, wide application in low-rise, high-rise and super-high-rise buildings such as various houses, offices, hotels, businesses and the like, and is a high-quality prefabricated floor slab. Particularly, the utility model discloses at least, one or more following actual effect have:
(1) the adopted uhpc has high tensile strength, high toughness, good crack resistance, difficult cracking, self-repairing capability of small cracks and large safety redundancy of the floor slab;
(2) the form is exempted from to tear open, and the die block is a part of floor overall structure moreover, can participate in the structure and bear, can not cause material and space waste, is far superior to solid mould steel bar truss floor carrier plate and steel die block's steel bar truss floor carrier plate.
(3) And a reinforced connection structure measure is adopted between the steel bar truss and the bottom die, so that the connection strength is high, and the hoisting safety is ensured.
(4) The uhpc bottom die serves as a steel bar protection layer, and the thickness of the steel bar protection layer at the bottom layer can be reduced due to the ultrahigh durability of uhpc, so that the effective section is large, and the bearing capacity is high.
(5) The bottom die and the steel bar truss are installed and formed at one time, the integrity is good, extra fixing measures of the steel bar truss are not needed, the production process is simple, and the working efficiency is high.
(6) The splicing part is specially treated, the connection strength is high, the uhpc bonding performance is high, and the cracking phenomenon at the bottom die joint can be well controlled.
(7) The components are produced in batches in factories, the size is regular, the process is simple, and the industrial production degree is high.
(8) Light in weight, transportation and hoist and mount location are convenient, and the site operation need not or only set up a small amount of interim supports, and the efficiency of construction is high, saves time limit for a project and operating expenses, and the wet operation in scene is few, green.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
FIG. 1 is a schematic plan view of an embodiment of a semi-prefabricated un-demolded steel bar truss floor slab (steel bar truss concrete not shown) based on uhpc;
FIG. 2 is a cross-sectional view taken along line 1-1 of FIG. 1;
FIG. 3 is a cross-sectional view taken along line 1-1 of FIG. 1 (bottom longitudinal ribs not shown);
FIG. 4 is a cross-sectional view taken along line 2-2 of FIG. 1;
FIG. 5 is a schematic diagram of a splicing structure of a semi-prefabricated formwork-free steel bar truss floor slab based on uhpc according to an embodiment;
fig. 6 is a schematic structural view of a steel bar truss according to an embodiment.
Reference numerals:
1-uhpc bottom die, 101-edge bevel edge and 102-edge groove;
2-steel bar truss, 201-web rib, 202 top longitudinal rib and 203-bottom longitudinal rib;
3-steel bar truss uhpc splicing tape;
4-steel bar truss uhpc anchor block, 401-stirrup steel bar;
5-connecting a uhpc connecting belt of a bottom die;
6-distributing steel bars;
7-steel bar truss concrete.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are described in further detail below with reference to the embodiments and the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
In the present invention, the terms "comprises/comprising," "consisting of … …," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product, apparatus, process, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product, apparatus, process, or method if desired. Without further limitation, an element defined by the phrases "comprising/including … …," "consisting of … …," or "comprising" does not exclude the presence of other like elements in a product, device, process, or method that comprises the element.
It is to be understood that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are intended to be open-ended, i.e., to mean either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
It will be further understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship illustrated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device, component, or structure so referred to must have a particular orientation, be constructed or operated in a particular orientation, and should not be considered as limiting the invention.
The technical solution of the present invention is specifically explained below with reference to the accompanying drawings.
Referring to fig. 1-4, the utility model firstly provides a semi-prefabricated non-stripping steel bar truss floor based on uhpc, which is formed by casting steel bar truss concrete on site on a steel bar truss floor bearing plate, the steel bar truss floor bearing plate is a prefabricated non-stripping steel bar truss floor bearing plate based on uhpc, and is formed by a uhpc bottom die 1, a steel bar truss 2, a steel bar truss uhpc adhesive tape 3 and a steel bar truss uhpc anchoring block 4, wherein,
the uhpc bottom die 1 is formed by pouring uhpc, and a bottom die connecting structure is formed on the edge of the uhpc bottom die and used for connecting two adjacent uhpc bottom dies;
the steel bar trusses 2 are multiple, are longitudinally and uniformly arranged on the uhpc bottom die 1 at intervals, and are connected with the uhpc bottom die 1 through steel bar truss uhpc adhesive tapes 3 and steel bar truss uhpc anchoring blocks 4 to form a whole;
a plurality of steel bar truss uhpc adhesive tapes 3 are longitudinally and uniformly arranged at intervals, correspond to the steel bar trusses 2, and are formed by pouring uhpc between the steel bar trusses 2 and a uhpc bottom die 1 and used for connecting the steel bar trusses and the uhpc bottom die;
a plurality of groups of reinforcement truss uhpc anchoring blocks 4 are transversely and uniformly arranged at intervals, and are formed by pouring uhpc between a reinforcement truss 2 and a uhpc bottom die 1 and used for connecting the reinforcement truss and the uhpc bottom die;
and the steel bar truss concrete 7 is poured on the uhpc bottom die 1 in site, and the steel bar truss concrete 7 wraps the steel bar truss 2 to form a floor slab.
The utility model discloses in, in view of uhpc's cost factor, uhpc die block thickness is about 10mm, generally 10-12mm, does not exceed 15mm, thin as far as possible under the prerequisite that satisfies the atress requirement. The requirement of the bottom die on the compressive strength of uhpc is not high, the requirement on the tensile strength can be controlled to be 120MPa for controlling the cost, the requirement on the tensile strength is generally higher than 7MPa, the requirement on the bearing capacity in the construction process is met on one hand, and the anti-cracking capacity is improved on the other hand.
Referring to fig. 5, the utility model discloses in, the die block is connected the structure and is included limit portion hypotenuse 101 and limit portion recess 102, and limit portion recess 102 evenly spaced apart establishes on limit portion hypotenuse 101, and limit portion hypotenuse 101 forms the V-arrangement groove when adjacent two uhpc die block 1 splices. The bevel edge and the groove can be pressed by a fixed die in a factory.
Specifically, the inclined angle of the inclined edge 101 of the edge part is 45-60 degrees, the width of the groove of the edge part is 20mm, the length is 50mm, the depth is 5mm, and the distance is 50 mm.
In the traditional connection structures such as V-shaped grooves, concave-convex insertion, mirror image clamping and the like, the connection position only depends on interface bonding force, and when the size of the groove is small, the bonding force is unreliable; if only set up the recess, cause the recess place to have newly to pour uhpc overlap joint again, the place of no recess is old uhpc entirely, produces the cold joint, influences joint strength, causes the junction fracture easily.
The utility model discloses set up the recess on the hypotenuse, the hypotenuse forms the V-arrangement groove after assembling on the spot, and the V-arrangement inslot is provided with the recess, pours uhpc at recess and V-arrangement inslot, forms die block uhpc connecting band 5, as shown in fig. 5, the V-arrangement groove increases the overlap joint length of uhpc that the recess was poured around having increased in other words, and the joint strength of reinforcing concatenation department improves the wholeness, relies on uhpc's high crack resistance ability control die block to assemble the department fracture. Meanwhile, the uhpc contains active elements, when cracks are generated, chemical reaction can continue if air is moist and the microcracks can be automatically closed by means of the crack resistance and microcrack self-repairing function of the uhpc.
Referring to fig. 4 again, in the utility model, steel bar truss 2 comprises web member 201 and vertical muscle, and a top vertical muscle 202 and two end vertical muscle 203 constitute the isosceles triangle cross-section, and web member 201 is trapezoidal and symmetric distribution in the both sides of indulging the muscle roughly and with the top vertical muscle 202, end vertical muscle 203 welded fastening.
Specifically, referring to fig. 6, the upper end of the web rib 201 is lap-welded to the side surface of the top longitudinal rib 202, the lower end of the web rib is lap-welded to the upper surface of the bottom longitudinal rib 203, and the lower end of the web rib 201 and the bottom longitudinal rib 203 enclose a closed trapezoidal region.
On this basis, the utility model discloses a steel bar truss uhpc adhesive tape 3 is for pouring uhpc formation between two end longitudinal reinforcement 203 of same pin steel bar truss before the bottom mould uhpc solidifies, indulges muscle 203 at two ends as the side form of pouring uhpc, and the thickness of pouring of uhpc is indulged muscle upper surface parallel and level or is a little more than end longitudinal reinforcement upper surface with the end, as shown in fig. 4.
The utility model discloses steel bar truss is put on the die block, two ends are indulged muscle and die block and can in close contact with in the bottom block, and the reinforcing bar can imbed the die block slightly before the die block does not solidify, indulge the muscle with two ends before the die block does not solidify and regard as the side form, indulge between the muscle at two ends and pour uhpc, uhpc indulges two ends and fills up between the muscle can, form the bonding tape, indulge the muscle firm bonding at the bonding tape and two ends, firmly form integratively with unset die block uhpc again simultaneously, die block and steel bar truss installation one shot forming, the process efficiency is high, the wholeness of die block and steel bar truss in the work progress has been improved, and indulge the muscle as the side form with two inherent ends in the construction, need not add the mould again.
A traditional steel bar truss mold fixing floor bearing plate needs to be provided with an embedded part in a bottom mold, and the embedded part is welded or bolted with a steel bar truss. Because the die block is usually thinner, the anchoring strength of built-in fitting in the die block is limited, and is limited to steel bar truss's connection performance, connect insecurely, especially when whole floor support plate plane size is great, lift by crane the danger that the in-process takes place steel bar truss and die block off easily, the utility model discloses a uhpc adhesive tape, uhpc adhesive tape is established to the equipartition under every pin steel bar truss, and uhpc's high strength ability has satisfied steel bar truss's anchoring requirement, compares with traditional steel bar truss solid mould floor support plate, need not to set up the built-in fitting in the die block, only needs to pour uhpc between two end longitudinal reinforcement, and does not need to add the mould alone, and simple process, intensity is enough to satisfy the hoist and mount requirement of prefabricated plate.
In addition, the reinforcing steel bar uhpc adhesive tape is only arranged between two bottom longitudinal bars, the top cloth is not needed, the adhesive tape is not arranged between each two steel bar trusses, the bottom die is not thickened too much while the adhesive strength of the steel bar trusses is met, and the weight and the cost are not too high.
Referring to fig. 1 again, the utility model discloses in, the even interval of steel bar truss uhpc anchor block 4 sets up the multiseriate, with steel bar truss uhpc bonding area 3 an organic whole pour uhpc and form. The steel bar truss building carrier plate is higher to the joint strength requirement of hoisting point department steel bar truss and die block when hoist and mount, otherwise easily takes place the drawing of patterns, the utility model discloses further set up steel bar truss uhpc anchor piece, the steel bar truss in anchor piece department is selected to the hoisting point during hoist and mount, can satisfy the hoist and mount and bear the requirement, need not to set up the hoist and mount built-in fitting alone, has reduced production processes, has improved production efficiency.
The anchoring blocks are discontinuous in disconnection between two adjacent rows of steel bar trusses. The width of the anchoring block is 50mm, the two ends of the anchoring block exceed the bottom longitudinal bars of the steel bar truss by 20mm, the height direction of the anchoring block exceeds the bottom longitudinal bars of the steel bar truss by 20mm, and the distance is 1-2 m. Because uhpc intensity is ultrahigh, uhpc anchor block intensity margin is big, therefore the shape needn't be too regular, rectangle or oblique cone all can, and oblique cone anchor block generally need not add special mould to the factory processing is convenient for the needs.
The utility model discloses in, interval between the adjacent steel bar truss is 500 and supplyes 1000 mm. The design anchor block breaks off between two adjacent lines of steel bar trusses discontinuously, and the length direction both ends surpass the steel bar truss end and indulge the muscle 20mm, and clear distance is about 460mm at least in the middle of the anchor block on two adjacent lines of steel bar trusses promptly, and neither adhesive tape nor anchor block have in this scope, satisfy under steel bar truss and die block joint strength's the prerequisite, save the material as far as possible, alleviate the dead weight.
Referring to fig. 2, 3 again, the utility model discloses in, be provided with stirrup reinforcing bar 401 in the steel bar truss uhpc anchor block 4, the bellying of stirrup reinforcing bar is followed web rib 201 and is indulged the trapezoidal region that muscle 203 encloses at the bottom and protruding and indulge muscle 203 welded fastening with the bottom, and the bellying anchor is in steel bar truss uhpc anchor block, and two feet of stirrup reinforcing bar extend and indulge muscle welded fastening with web rib, end to both ends in the trapezoidal region that the muscle encloses from web rib and end to the muscle. Two foot parts extend to this trapezoidal regional border or slightly exceed trapezoidal regional border to both ends at least in trapezoidal region, so, stirrup reinforcing bar 401 can all fully overlap joint welded fastening simultaneously with web member, end longitudinal bar, and furthest ensures the anchor strength of anchor block to steel bar truss.
The utility model discloses steel bar truss building carrier plate adopts uhpc die block and steel bar truss uhpc adhesive tape, steel bar truss uhpc anchor piece reinforcing die block and steel bar truss connection's wholeness based on uhpc (ultra high performance concrete), and the bulk rigidity is big, can pour simultaneously with uhpc die block moreover, and one shot forming in the mill, production efficiency is high.
The utility model discloses about steel bar truss building carrier plate uhpc die block thickness 10mm, replaced the cement fiberboard die block in the steel bar truss solid mould building carrier plate and the die block of conventional steel bar truss building carrier plate, cement fiberboard die block at first need process cement fiberboard, cement fiberboard reaches production platform on the intensity back, puts steel bar truss, connects fixedly, is 2cm cement fiberboard +11cm floor usually, and cement fiberboard is not atress in the use. The uhpc bottom die participates in the bearing capacity calculation of the floor slab, namely participates in structural stress, is a part of the whole structure of the floor slab, and reduces the total thickness of the whole floor slab. Considering uhpc die block's superstrong durability and superhigh strength, the protective layer thickness of reinforcing bar can be less, under the prerequisite of having increased floor durability, has still increased the safety redundancy of floor bearing capacity. The utility model discloses end is indulged muscle protective layer thickness 10mm, and protective layer thickness is little, and the reinforcing bar is effective highly big, and same arrangement of reinforcement bending resistance bearing capacity is bigger.
In addition, because the good rigidity and the anti-cracking performance of prefabrication based on uhpc exempts from to tear open mould steel bar truss floor carrier plate, the board end need not to be full of construction support again during site operation. When the connecting device is used for connecting steel beams, the connecting device can be directly placed on the steel beams without arranging construction supports; when connecting precast reinforced concrete roof beam, because the concrete roof beam does not have the condition to shelve the floor carrier plate, can set up single row construction temporary support under the board end. Compared with the traditional floor slab, the temporary support construction amount is greatly reduced.
In a word, the utility model discloses half prefabrication based on uhpc exempts from form removal steel bar truss floor uses the mill prefabrication as the main, and cast in situ upper portion concrete can, production simple process need not special equipment, except having good mechanical properties, still has advantages such as anticorrosive, impervious performance is good, energy-conserving low consumption, green, can be used for the floor of all kinds of assembled building.
Thus, it should be understood by those skilled in the art that while exemplary embodiments of the present invention have been illustrated and described in detail herein, many other variations and modifications can be made in accordance with the principles of the present invention without departing from the spirit and scope of the invention, which is to be determined directly from the disclosure of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. The utility model provides a half prefabrication exempts from form removal steel bar truss floor based on uhpc comprises steel bar truss building carrier plate cast in situ steel bar truss concrete, and the prefabricated form removal-free steel bar truss building carrier plate of muscle truss building carrier plate for based on uhpc comprises uhpc die block, steel bar truss uhpc splicing tape and steel bar truss uhpc anchor piece, wherein:
the uhpc bottom die is formed by pouring uhpc, and a bottom die connecting structure is formed on the edge of the uhpc bottom die and used for connecting two adjacent uhpc bottom dies;
the steel bar trusses are longitudinally and uniformly arranged on the uhpc bottom die at intervals and are connected with the uhpc bottom die into a whole through steel bar truss uhpc adhesive tapes and steel bar truss uhpc anchoring blocks;
the steel bar truss uhpc bonding strips are longitudinally and uniformly arranged in multiple strips at intervals, correspond to the steel bar truss, are formed by pouring uhpc between the steel bar truss and the uhpc bottom die, and are used for connecting the steel bar truss and the uhpc bottom die;
the steel bar truss uhpc anchoring blocks are transversely and uniformly arranged in multiple groups at intervals, are formed by pouring uhpc between the steel bar truss and the uhpc bottom die and are used for connecting the steel bar truss and the uhpc bottom die;
and the reinforced truss concrete is poured on the uhpc bottom die.
2. A floor slab as claimed in claim 1, wherein:
the die block connection structure comprises an edge bevel edge and an edge groove, the edge groove is uniformly spaced on the edge bevel edge or in a vicinity of the inward extension of the edge bevel edge, and the edge bevel edge forms a V-shaped groove when two adjacent uhpc die blocks are spliced.
3. A floor slab as claimed in claim 2, wherein:
the inclined angle of the bevel edge of the edge part is 45-60 degrees, the width of the groove of the edge part is 20mm, the length is 50mm, the depth is 5mm, and the distance is 50 mm.
4. A floor slab as claimed in claim 1, wherein:
the reinforcing bar truss comprises indulging muscle and web member, and the muscle constitutes the isosceles triangle cross-section at indulging muscle and two end longitudinal reinforcement on one top, and the web member is trapezoidal and symmetric distribution in the both sides of indulging the muscle roughly and indulges muscle, end longitudinal reinforcement welded fastening with the top, reinforcing bar truss uhpc adhesive tape is indulged the muscle at two ends of same pin reinforcing bar truss before solidifying for die block uhpc and is pour uhpc and form between the muscle, indulges the muscle as the side form of pouring uhpc at two ends, and the thickness of pouring of uhpc indulging the muscle upper surface parallel and level or be a little more than end longitudinal reinforcement upper surface with the end.
5. A floor slab as claimed in claim 1, wherein:
the steel bar truss uhpc anchoring blocks and the steel bar truss uhpc adhesive tapes are integrally poured to form the steel bar truss uhpc anchoring blocks, and the steel bar truss uhpc anchoring blocks are discontinuous in disconnection between two adjacent steel bar trusses.
6. A floor slab as claimed in claim 5, wherein:
the width of the uhpc anchor block of the steel bar truss is 50mm, the two ends of the length direction exceed the bottom longitudinal bars of the steel bar truss by 20mm, and the height direction exceed the bottom longitudinal bars of the steel bar truss by 20 mm.
7. A floor slab as claimed in claim 1, wherein:
and a plurality of steel bar trusses are uniformly arranged on the uhpc bottom die at intervals, and the distance between every two adjacent steel bar trusses is 500-1000 mm.
8. A floor slab as claimed in claim 1, wherein:
be provided with the stirrup reinforcing bar in the steel bar truss uhpc anchor piece, the bellying of stirrup reinforcing bar is followed the web muscle and is indulged the trapezoidal region that the muscle encloses at the bottom and protruding and indulge muscle welded fastening with the bottom, and the bellying anchor is in steel bar truss uhpc anchor piece, and two feet of stirrup reinforcing bar are followed the web muscle and are indulged the trapezoidal region that the muscle encloses at the bottom and extend to both ends and indulge muscle welded fastening with web muscle, end.
9. A floor slab as claimed in claim 1, wherein: and the steel bar truss is provided with transverse and longitudinal distributed steel bars.
10. A floor according to any of claims 1 to 9, wherein:
the thickness of the uhpc bottom die is 10-12 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120859379.7U CN214884744U (en) | 2021-04-25 | 2021-04-25 | Half prefabricated formwork removal-free steel bar truss floor based on uhpc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120859379.7U CN214884744U (en) | 2021-04-25 | 2021-04-25 | Half prefabricated formwork removal-free steel bar truss floor based on uhpc |
Publications (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123506A (en) * | 2021-04-25 | 2021-07-16 | 重庆涛扬绿建科技有限公司 | Prefabricated die-removal-free steel bar truss floor bearing plate based on uhpc and using method |
| CN114059703A (en) * | 2021-12-07 | 2022-02-18 | 四川省欧威新型建材有限公司 | Disassembly-free bottom die steel bar truss concrete floor support plate and forming method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123506A (en) * | 2021-04-25 | 2021-07-16 | 重庆涛扬绿建科技有限公司 | Prefabricated die-removal-free steel bar truss floor bearing plate based on uhpc and using method |
| CN113123506B (en) * | 2021-04-25 | 2022-12-13 | 重庆涛扬绿建科技有限公司 | Prefabricated die-removal-free steel bar truss floor bearing plate based on uhpc and using method |
| CN114059703A (en) * | 2021-12-07 | 2022-02-18 | 四川省欧威新型建材有限公司 | Disassembly-free bottom die steel bar truss concrete floor support plate and forming method thereof |
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