CN113863549A

CN113863549A - Construction process of ribbed floor

Info

Publication number: CN113863549A
Application number: CN202111174677.3A
Authority: CN
Inventors: 杨玉杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2021-12-31

Abstract

The application discloses a construction process of a ribbed floor, which comprises a support system construction stage, a formwork construction stage and a formwork dismantling stage; in the process of the construction stage of the supporting system, the special structure of the n-shaped beams and the connecting pieces matched with the n-shaped beams are adopted to realize the fastening connection between the n-shaped beams. On one hand, the connection mode can greatly save the use amount of raw materials and reduce the construction cost; on the other hand, the construction difficulty of workers can be reduced, and the construction efficiency is improved. Secondly, in the mould shell work progress, this application only need with the mould shell directly place in the grid that braced system formed can, need not additionally to beat the screw, also need not to set up other any fasteners and fix mould shell and rib roof beam, not only can save technical staff's time and energy at to a great extent, promote the efficiency of mould shell work progress greatly, still do benefit to the maintenance of mould shell stability.

Description

Construction process of ribbed floor

Technical Field

The invention belongs to the technical field of building construction, and particularly relates to a construction process of a multi-ribbed floor.

Background

The dense rib floor has the advantages of saving building materials, reducing the self weight of the floor, being convenient and fast to construct, and being capable of obtaining excellent performances of heat preservation, heat insulation, sound insulation, energy conservation, earthquake resistance and the like by using a specific structural form, so that the dense rib floor is widely applied to floors, roofs and bridges of cast-in-place reinforced concrete or prestressed reinforced concrete structures.

At present, no matter dense rib floor, hollow floor, cast-in-place beam slab floor and the like, a main keel is erected on a support frame, a required square timber secondary keel is erected on the main keel according to the space size of a floor slab, a template is laid on square timber, the axis line and the dimension line of the rib beam are manually placed, a filling box or a formwork is placed on the template according to a construction drawing, and finally concrete is poured on the filling box or the formwork to form the floor slab. When the method is adopted to carry out floor construction, in order to ensure that the formwork does not deviate in the concrete pouring process and ensure the good structural strength of the floor, the formwork is usually fixed on the primary and secondary keels or the rib beams by adopting a screw connection mode. In view of the fact that the formwork is usually large in size and the entire floor system is usually provided with a plurality of formworks, technicians often spend a lot of time and effort in installing and fixing the formworks, which is not favorable for improving the construction efficiency. In addition, when the formwork is dismantled by the construction method provided by the prior art, a technician is also required to unscrew a plurality of screws one by one to completely dismantle the formwork, so that the construction difficulty is greatly increased.

Furthermore, although the prior art has a fast-assembling and fast-disassembling formwork system of a building multi-ribbed structure, which includes a metal formwork, metal supporting angle blocks, ground supporting columns and necessary connecting members, wherein the metal formwork is a rectangular plate horizontally laid along the outer side of the formwork bottom frame, and the fixed support for the formwork is realized through the cooperation between the metal formwork, the metal supporting angle blocks and the ground supporting columns. Although the formwork system with the structure solves some problems in the traditional construction mode to a certain extent, the practical application range of the formwork system is limited because the metal template can only be matched with the formwork with a specific specification, and the formwork system cannot be well matched with formworks with different sizes and specifications.

It will thus be seen that the prior art is susceptible to further improvement and enhancement.

Disclosure of Invention

The invention provides a construction process of a ribbed floor, which aims to solve at least one of the technical problems.

The technical scheme adopted by the invention is as follows:

the invention provides a construction process of a ribbed floor, which comprises a support system construction stage, a formwork construction stage and a formwork dismantling stage; the supporting system comprises a supporting vertical rod, a frame beam, a U-shaped beam and a connecting piece;

a support system construction stage:

paying off on a construction ground according to preset construction requirements to respectively determine the installation positions of the supporting upright stanchion, the frame beam and the U-shaped beam;

erecting a scaffold to arrange the supporting vertical rods according to the determined installation positions, erecting the frame beams and the cross-shaped beams at the top ends of the supporting vertical rods, and leaving gaps for placing the connecting pieces at the joints among the cross-shaped beams;

arranging the connecting pieces in the gaps to realize the fastening connection among the n-shaped beams, wherein the frame beams surround to form a peripheral frame of the multi-ribbed floor system, and the n-shaped beams are positioned in the peripheral frame and criss-cross with each other to form a plurality of grids for placing the formwork;

the formwork construction stage:

respectively putting the formwork into a plurality of grids from top to bottom so as to lap the formwork at the edges of the U-shaped beams;

sealing the joints between adjacent formworks to prevent concrete from leaking from the joints;

after the formwork is installed, coating a layer of release agent on the surface of the formwork;

pouring concrete on the surface of the formwork;

a formwork dismantling stage:

after the distance between the n-shaped beams reaches a preset value and the preset first dismantling time is met, dismantling the n-shaped beams and the supporting vertical rods corresponding to the n-shaped beams, and taking down the formwork;

after the preset second dismantling time is met, dismantling the connecting piece and the supporting upright pole corresponding to the connecting piece;

and after the preset third dismantling time is met, dismantling the frame beam and the supporting upright rods corresponding to the frame beam.

As a preferred embodiment of the invention, during the construction phase of the support system, the bottom of the supporting uprights is provided with a spacer to prevent the supporting uprights from settling during the concrete casting process.

As a preferred embodiment of the invention, in the construction stage of the formwork, the formwork is respectively put into a plurality of grids from the center to the periphery.

As a preferred embodiment of the present invention, after the formwork is lapped on the edge of the n-shaped beam in the construction stage of the formwork, the construction process further comprises: the U-shaped beams and the formworks positioned on two sides of the U-shaped beams are limited horizontally by limiting parts, so that the U-shaped beams are in close contact with the adjacent formworks.

In a preferred embodiment of the present invention, in the formwork construction stage, when the sealing treatment is performed on the seam between the adjacent formworks, the formwork which is partially warped is filled with a foaming agent, and/or the gap at the seam is sealed by using a sealing member.

In a preferred embodiment of the present invention, the concrete is point-inserted vibrated in the direction of the cross-shaped beams and the frame beams when the concrete is poured on the surface of the formwork in the construction stage of the formwork.

In a preferred embodiment of the present invention, after the concrete is poured on the surface of the formwork, the construction stage of the formwork further includes: after the concrete is solidified, a plastic film or a grass felt is covered on the surface of the concrete, and watering and curing are carried out.

As a preferred embodiment of the present invention, the n-shaped beam is provided with a plurality of avoiding holes, and the plurality of avoiding holes are uniformly distributed on the surface of the n-shaped beam.

In a preferred embodiment of the present invention, the connecting member has a first connecting portion, and the n-shaped beam has a second connecting portion, and the first connecting portion and the second connecting portion cooperate to achieve the connection between the connecting member and the n-shaped beam.

As a preferred embodiment of the present invention, the supporting upright includes a rod body and a bracket located at an end of the rod body, a sleeve sleeved on the rod body is connected to a bottom of the bracket, and the bracket can move up and down along an axial direction of the rod body through the sleeve.

Due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. the construction process of the ribbed floor slab provided by the invention comprises the following steps of firstly adopting a special n-shaped beam structure and connecting pieces matched with the n-shaped beams to realize the fastening connection among the n-shaped beams in the construction stage of the supporting system. Compared with the mode of fixing the primary and secondary keels or the rib beams by binding steel bars in the prior art, the connection mode can greatly save the use amount of raw materials and reduce the construction cost; on the other hand, the construction difficulty of workers can be reduced, and the construction efficiency is improved. In addition, the formwork is supported by the edges of the n-shaped beams, so that the size and the arrangement mode of the n-shaped beams can be flexibly adjusted by a user according to the size or specification of the formwork, the supporting system can be suitable for the formworks with different sizes or specifications, and the application range and the availability of the supporting system are improved. Secondly, in the formwork construction process, the formwork is directly placed in the grids formed by the supporting system, screws do not need to be additionally arranged, other fasteners are not needed to be arranged to fix the formwork and the rib beams, the good fixing of the formwork can be realized by means of the gravity of the formwork and the stop supporting effect of the n-shaped beams on the formwork, the time and the energy of technical personnel can be saved to a great extent, the efficiency of the formwork construction process is greatly improved, and the stability of the formwork is favorably kept. Finally, in the process of dismantling the formwork, a technician is required to take the formwork down from the concrete layer, and the formwork dismantling efficiency is greatly improved.

2. As a preferred embodiment of the present invention, the bottom blocks of the supporting uprights are arranged to prevent the supporting uprights from settling to the maximum during the concrete casting process, so that the stability of the supporting system is improved.

3. As a preferred embodiment of the invention, the formwork is arranged from the center to the periphery, so that the phenomenon that frame beams at two ends are unequal in the construction process of the formwork can be avoided to the greatest extent, the formwork can be uniformly distributed relative to each grid, the construction process of the whole formwork is safer, and the stability of a supporting system to the formwork is better.

4. As a preferred embodiment of the invention, the formwork which is subjected to buckling deformation is filled by using a foaming agent, so that the contact between the formwork and the I-shaped beam is tighter, and the slurry leakage is prevented to a certain extent. Furthermore, on the basis of filling foaming agent on the formwork with warping deformation, sealing measures such as sealant or bamboo plywood and the like can be taken to treat gaps at seams between adjacent formworks, so that the sealing performance of the ribbed floor is further improved, and material leakage in the concrete pouring process is prevented.

5. As a preferred embodiment of the invention, the point-inserting type vibration mode is adopted in the concrete pouring process, so that the aggregation phenomenon under the action of self fluid in the concrete pouring process can be prevented, and the formwork creeping phenomenon can be avoided. In addition, the point-inserting type vibrating mode can overcome the shrinkage of the concrete before final setting while ensuring the vibrating efficiency.

6. As a preferred embodiment of the invention, the arrangement of the avoiding hole can greatly reduce the required materials on the basis of not reducing the self structural strength of the n-shaped beam, thereby being beneficial to reducing the product cost. And with the reduction of the material of the U-shaped beam, the weight of the U-shaped beam is correspondingly lightened, so that the U-shaped beam is convenient for workers to take and construct to a great extent, the labor intensity of the workers is greatly reduced, and the construction efficiency is improved.

7. As a preferred embodiment of the invention, the arrangement of the sleeve on the bracket can enable the rod body and the bracket to move relatively, so that the bracket can be separated from the frame beam, the n-shaped beam or the connecting piece when the formwork is disassembled, the smooth operation of the formwork disassembling process is further facilitated, and the formwork disassembling efficiency is improved. And the sleeve is provided with an L-shaped hole, and the position of the bracket on the rod body can be limited by arranging the retaining column on the rod body, so that the bracket is prevented from sliding on the rod body arbitrarily, and the bracket can be used for supporting frame beams, U-shaped beams, connecting pieces and the like well.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a flow frame diagram of a construction process of a ribbed floor according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a supporting system according to an embodiment of the present invention;

FIG. 3 is a schematic flow chart of a support system construction phase according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a connector according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a cross-shaped beam according to an embodiment of the present invention;

FIG. 6 is a block diagram of another several beams provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of another connector according to an embodiment of the present invention;

FIG. 8 is a schematic structural view of another inverted U-shaped beam according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of another connector according to an embodiment of the present invention;

FIG. 10 is a schematic view of a formwork construction stage according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a limiting element according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of another position limiting element according to an embodiment of the present invention;

FIG. 13 is a schematic view of a formwork removal stage according to an embodiment of the present invention;

FIG. 14 is a schematic structural view of yet another inverted U-shaped beam according to an embodiment of the present invention;

fig. 15 is a schematic structural view of a supporting upright according to an embodiment of the present invention.

Wherein the content of the first and second substances,

100 supporting upright rods, 110 cushion blocks, 120 brackets, 130 sleeves and 131L-shaped holes;

200 frame beams, 300 cross beams, 310 second connecting parts, 320 avoidance holes, 400 connecting parts and 410 first connecting parts;

500 limiters, 510 screw posts, 520 double-locking nuts, 530 limiting heads, 540 clamps and 550 locking posts.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present invention, it is to be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; 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 by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 are not necessarily intended to 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.

As shown in fig. 1, the invention provides a construction process of a multi-ribbed floor, which comprises a support system construction stage, a formwork construction stage and a formwork dismantling stage; wherein, referring to fig. 2, the support system comprises a support upright 100, a frame beam 200, a cross beam 300 and a connector 400. The frame beams 200 are enclosed to form a peripheral frame of the multi-ribbed floor system, the n-shaped beams 300 are positioned in the peripheral frame, the n-shaped beams 300 are arranged in a plurality, the n-shaped beams 300 are arranged in a criss-cross mode, and a plurality of grids (not shown in the figure) for placing a formwork (not shown in the figure) are formed between the frames beams 200.

Based on the structure of this kind of braced system, the construction process that this application provided can make things convenient for more, swiftly carry out the construction to the ribbed superstructure. Specifically, the following will explain the specific content of each stage in the construction process provided by the present application:

referring to fig. 3, the support system construction phase may include the steps of:

and S11, paying off the construction ground according to the preset construction requirements to respectively determine the installation positions of the supporting upright stanchion, the frame beam and the U-shaped beam.

In step S11, it is also preferable to provide a spacer 110 at the bottom of the supporting upright 100, for example, to prevent the supporting upright from sinking during the concrete casting process. The mode that the bottom of the supporting upright 100 is provided with the cushion block 110 is mainly used for keeping the stability of the supporting system, so that the supporting system can be suitable for construction sites with complex environments. In addition, the top ends of the supporting uprights 100 can be in the same horizontal plane by adjusting the number and size of the spacers 110, and thus, the structure, arrangement and the like of the spacers 110 are not limited in the present application. And, this arrangement can prevent the support upright 100 from being settled during the concrete casting process to the maximum extent, so that the stability of the support system can be improved.

And S12, erecting a scaffold so as to arrange the supporting vertical rods according to the determined installation positions, erecting the frame beams and the cross-shaped beams at the top ends of the supporting vertical rods, and leaving gaps for placing connecting pieces at the joints among the cross-shaped beams.

And S13, arranging the connecting pieces in the gaps to realize the tight connection between the several beams.

In order to achieve a secure connection between the connector 400 and each i-beam 300, in particular, the present application may provide that the connector 400 has a first connection portion 410, the i-beam 300 has a second connection portion 310, and the first connection portion 410 and the second connection portion 310 cooperate to achieve a connection between the connector 400 and the i-beam 300.

Regarding the specific implementation of the first connection portion 410 and the second connection portion 310, the present application will be described with reference to several different embodiments as follows:

implementation mode one

Referring to fig. 4 and 5, one of the first connecting portion 410 and the second connecting portion 310 is a locking hole, and the other is a locking pin having a limiting hole; the connecting member 400 further has a plug (not shown), and after the locking pin passes through the locking hole, the plug is matched with the limiting hole to realize the connection between the first connecting portion 410 and the second connecting portion 310.

Second embodiment

Referring to fig. 4 and 6, one of the first connecting portion 410 and the second connecting portion 310 is a fixing hole, the other one of the first connecting portion and the second connecting portion is a limiting post, and a stopping portion extending in a radial direction is arranged at an end of the limiting post, and the stopping portion can abut against the periphery of the fixing hole to realize connection between the first connecting portion 410 and the second connecting portion 310.

Third embodiment

Referring to fig. 7 and 8, the first connecting portion 410 is a limiting block disposed at the bottom of the connecting member 400, the second connecting portion 310 is an arc limiting plate disposed at the end of the multi-ribbed beam 300, and the arc limiting plate can be matched with the limiting block to realize the connection between the first connecting portion 410 and the second connecting portion 310.

Embodiment IV

Referring to fig. 9, the first connection portion 410 is a through hole disposed on a side wall of the connection member 400, and correspondingly, the second connection portion 310 may be a limit screw, a clamping column, or the like disposed on the multi-ribbed beam 300, and the connection between the first connection portion 410 and the second connection portion 310 is achieved through the cooperation of the limit screw or the clamping column with the through hole.

It is understood that the different embodiments described above are only examples of the specific structures of the first connection portion 410 and the second connection portion 310 in the present embodiment, and do not constitute limitations on the specific structures and connection manners of the first connection portion 410 and the second connection portion 310. In addition to the above manner, the first connection portion 410 and the second connection portion 310 may be connected by a bolt, a snap, or the like. No matter which kind of connected mode above-mentioned all can make between connecting piece 400 and the few style of calligraphy roof beam 300 can dismantle to be convenient for whole braced system's assembly and dismantlement, and then promote the efficiency of construction.

Referring to FIG. 10, the formwork construction phase can include the following steps:

s21, placing the shuttering into a plurality of grids from top to bottom respectively to overlap the shuttering at the edges of the I-shaped beams.

Preferably, in step S21, when the formwork is placed, the formwork can be placed into a plurality of grids from the center to the periphery, for example. The placing mode can avoid the phenomenon that frame beams at two ends are unequal in the construction process of the formwork to the maximum extent, so that the formwork can be uniformly distributed relative to each grid, the construction process of the whole formwork is safer, and the stability of the supporting system to the formwork is better.

S22, the U-shaped beams and the formworks at two sides of the U-shaped beams are limited horizontally by the limiting pieces, so that the U-shaped beams are in close contact with the adjacent formworks.

In step S22, the position-limiting element can achieve close contact between the n-shaped beam and the formwork, and the specific structure thereof may be various. For ease of understanding and explanation, the present embodiment will be explained with two different examples of the structure of the position limiting element and the related content in step S22:

example 1

Referring to fig. 11, the limiting member 500 includes a screw post 510 and a double lock nut 520 screw-engaged with the screw post 510, wherein one end of the screw post 510 is provided with a limiting head 530, and the double lock nut 520 is located at an end of the screw post 510 opposite to the limiting head 530. In addition, the side walls of the formwork and the cross beam 300 are provided with through holes (not marked in the figure) matched with the screw columns 510. When the combined type formwork is installed, the screw columns 510 are inserted into the through holes, then the double-tightening nuts 520 are screwed until the double-tightening nuts 520 are abutted to the inner wall of the formwork or the U-shaped beam 300, and finally the close contact between the formwork and the U-shaped beam 300 is achieved.

Example two

Referring to fig. 12, the limiting member 500 includes a clip 540 and a lock cylinder 550, wherein the clip 540 has a mounting hole (not labeled) formed thereon for engaging with the lock cylinder 550, and the clip 540 is U-shaped. When the combined type beam formwork is installed, the clamp 540 is firstly placed below the formwork, the openings of the clamp 540 are respectively embedded with the side walls of two adjacent formworks, and then the locking column 550 is continuously screwed to be finally directly abutted against the inner wall of the formwork, so that the formwork and the inverted U-shaped beam 300 are fastened and connected.

This application promotes the compactness of being connected between mould shell and the nearly word beam 300 through setting up of locating part 500, can reduce the existence of gap between the two to the at utmost to reduce the risk that the concrete reveals from above-mentioned gap, do benefit to the promotion of construction quality, also do benefit to the maintenance of structural stability after the shaping of dense rib superstructure.

And S23, sealing the joints between the adjacent formworks to prevent the concrete from leaking from the joints.

In step S23, when sealing the joint between adjacent forms, for example, a foaming agent may be used to fill the partially warped form, and/or a sealing member may be used to seal the gap at the joint. The foaming agent is used for filling the formwork which is warped and deformed, so that the contact between the formwork and the U-shaped beam is tighter, and the slurry leakage is prevented to a certain extent. Furthermore, on the basis of filling foaming agent on the formwork with warping deformation, sealing measures such as sealant or bamboo plywood and the like can be taken to treat gaps at seams between adjacent formworks, so that the sealing performance of the ribbed floor is further improved, and material leakage in the concrete pouring process is prevented.

S24, after the formwork is installed, coating a layer of release agent on the surface of the formwork.

When the release agent is used, the follow-up formwork can be conveniently detached, technicians can conveniently perform demoulding operation on the formwork, the condition that the concrete is rubbed off by the formwork in the demoulding process is avoided to the maximum extent, and therefore the structural strength and the integrity of the concrete layer are favorably guaranteed.

And S25, pouring concrete on the surface of the formwork.

The mode of can also adopting point to insert formula of vibrating at the concrete placement in-process can prevent that concrete placement in-process from appearing the gathering phenomenon under self fluid effect, and can avoid the formwork creeping formwork phenomenon to appear. In addition, the point-inserting type vibrating mode can overcome the shrinkage of the concrete before final setting while ensuring the vibrating efficiency.

And S26, after the concrete is solidified, covering the surface of the concrete with a plastic film or a grass mat, and watering and curing.

The maintenance method provided in the step S26 can reduce the temperature difference between the upper surface and the lower surface of the concrete, prevent the loss of hydration heat, be beneficial to improving the early strength of the concrete and prevent the generation and the propagation of concrete cracks.

Further, referring to FIG. 13, the formwork removal stage can include the steps of:

and S31, when the distance between the U-shaped beams reaches a preset value and the preset first dismantling time is met, dismantling the U-shaped beams and the supporting vertical rods corresponding to the U-shaped beams, and taking down the formwork.

And S32, after the preset second removal time is met, removing the connecting piece and the supporting upright rod corresponding to the connecting piece.

And S33, after the preset third dismantling time is met, dismantling the frame beam and the supporting upright rods corresponding to the frame beam.

In the formwork removal stage, the first removal time may be 24 hours, the second removal time may be 28 days, and the third removal time may be, for example, the time for completely forming the multi-ribbed floor (e.g., 2 months, 3 months, etc.), and the specific values of the first removal time, the second removal time, and the third removal time are not limited in the present application, but the minimum value of each removal time should be no less than the above examples.

In one embodiment, referring to fig. 14, the n-shaped beam 300 may be formed with a plurality of avoiding holes 320, and the plurality of avoiding holes 320 are uniformly distributed on the surface of the n-shaped beam 300. The avoiding hole 320 may be a circular hole formed in the side wall of the n-shaped beam 300, or a saw-toothed half hole formed in the edge of the n-shaped beam 300.

It should be noted that, in this embodiment, the structure, number, arrangement mode, and the like of the avoidance holes are not limited, and besides the circular holes, the avoidance holes may be elliptical holes, rhombic holes, square holes, and the like; the number thereof may be, for example, 5 or 10.

The arrangement of the avoiding hole can greatly reduce the required materials on the basis of not reducing the self structural strength of the n-shaped beam, thereby being beneficial to reducing the product cost. And with the reduction of the material of the U-shaped beam, the weight of the U-shaped beam is correspondingly lightened, so that the U-shaped beam is convenient for workers to take and construct to a great extent, the labor intensity of the workers is greatly reduced, and the construction efficiency is improved.

Referring to fig. 15, as a preferred embodiment of the present invention, the supporting upright 100 includes a rod 110 and a bracket 120 located at an end of the rod 110, a sleeve 130 sleeved on the rod 110 is connected to a bottom of the bracket 120, and the bracket 120 can move up and down along an axial direction of the rod 110 through the sleeve 130.

It should be noted that the structure of the bracket 120 can be adjusted adaptively according to the specific structure of the frame beam 200, the n-shaped beam 300 and the connecting member 400, for example, when the n-shaped beam 300 is supported in contact with the bracket 120, the bracket 120 can be, for example, in a chevron shape with a high middle and low two sides to ensure the stability therebetween; when the bracket 120 is in contact with the frame beam 200, since the bottom of the frame beam 200 is a plane, the bracket 120 may have a flat-angled chevron structure to achieve good support for the frame beam 200.

Further, the sleeve 130 may be formed with an L-shaped hole 131, and the rod body is provided with a stop pillar (not labeled) which is matched with the L-shaped hole 131 to fix the bracket 120.

The arrangement of the sleeve on the bracket can enable the rod body and the bracket to move relatively, so that the bracket can be separated from the frame beam, the U-shaped beam or the connecting piece when the formwork is disassembled, the formwork disassembling process can be smoothly performed, and the formwork disassembling efficiency is improved. And the sleeve is provided with an L-shaped hole, and the position of the bracket on the rod body can be limited by arranging the retaining column on the rod body, so that the bracket is prevented from sliding on the rod body arbitrarily, and the bracket can be used for supporting frame beams, U-shaped beams, connecting pieces and the like well.

Finally, it is emphasized that the construction process of the ribbed floor system provided by the invention realizes the fastening connection between the several beams by adopting the special several-shaped beam structure and the connecting piece matched with the several-shaped beam in the construction stage of the supporting system. Compared with the mode of fixing the primary and secondary keels or the rib beams by binding steel bars in the prior art, the connection mode can greatly save the use amount of raw materials and reduce the construction cost; on the other hand, the construction difficulty of workers can be reduced, and the construction efficiency is improved. In addition, the formwork is supported by the edges of the n-shaped beams, so that the size and the arrangement mode of the n-shaped beams can be flexibly adjusted by a user according to the size or specification of the formwork, the supporting system can be suitable for the formworks with different sizes or specifications, and the application range and the availability of the supporting system are improved. Secondly, in the formwork construction process, the formwork is directly placed in the grids formed by the supporting system, screws do not need to be additionally arranged, other fasteners are not needed to be arranged to fix the formwork and the rib beams, the good fixing of the formwork can be realized by means of the gravity of the formwork and the stop supporting effect of the n-shaped beams on the formwork, the time and the energy of technical personnel can be saved to a great extent, the efficiency of the formwork construction process is greatly improved, and the stability of the formwork is favorably kept. Finally, in the process of dismantling the formwork, a technician is required to take the formwork down from the concrete layer, and the formwork dismantling efficiency is greatly improved.

The method can be realized by adopting or referring to the prior art in places which are not described in the invention.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above are merely examples of the present invention, and are not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The construction process of the multi-ribbed floor is characterized by comprising a support system construction stage, a formwork construction stage and a formwork dismantling stage; the supporting system comprises a supporting vertical rod, a frame beam, a U-shaped beam and a connecting piece;

a support system construction stage:

the formwork construction stage:

pouring concrete on the surface of the formwork;

a formwork dismantling stage:

2. A process for constructing a multi-ribbed floor according to claim 1, wherein during the construction of the supporting system, the bottom of the supporting uprights are provided with spacers to prevent the supporting uprights from settling during the concrete casting process.

3. The process of claim 1, wherein the forms are placed in a center-to-periphery pattern into a plurality of cells during the form construction phase.

4. The process of claim 1, wherein during the formwork construction phase, after the formwork is lapped on the edges of the plurality of cross beams, the process further comprises:

the U-shaped beams and the formworks positioned on two sides of the U-shaped beams are limited horizontally by limiting parts, so that the U-shaped beams are in close contact with the adjacent formworks.

5. A process as claimed in any one of claims 1 to 4, wherein during the formwork construction phase, when sealing the joints between adjacent formworks, the formwork that is partially warped is filled with a foaming agent and/or the seams are sealed with a sealing member.

6. The process of claim 1, wherein the concrete is poured onto the formwork surface during the formwork construction stage, and the concrete is vibrated in the direction of the cross-shaped beams and the frame beams by point insertion.

7. The process of claim 6, wherein after pouring concrete over the formwork surface, the formwork step further comprises: after the concrete is solidified, a plastic film or a grass felt is covered on the surface of the concrete, and watering and curing are carried out.

8. The construction process of a multi-ribbed floor according to claim 1, wherein a plurality of avoiding holes are formed in the n-shaped beams, and the avoiding holes are uniformly distributed on the surfaces of the n-shaped beams.

9. A process according to claim 8, wherein the connecting member has a first connecting portion and the several beams have a second connecting portion, the first connecting portion and the second connecting portion cooperating to effect connection between the connecting member and the several beams.

10. The construction process of a multi-ribbed floor system according to claim 1, wherein the supporting vertical rod comprises a rod body and a bracket located at the end of the rod body, a sleeve sleeved on the rod body is connected to the bottom of the bracket, and the bracket can move up and down along the axial direction of the rod body through the sleeve.