CN109723186A - A kind of prefabricated components of sealing reversed beam and the construction method of sealing reversed beam - Google Patents

A kind of prefabricated components of sealing reversed beam and the construction method of sealing reversed beam Download PDF

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Publication number
CN109723186A
CN109723186A CN201910009894.3A CN201910009894A CN109723186A CN 109723186 A CN109723186 A CN 109723186A CN 201910009894 A CN201910009894 A CN 201910009894A CN 109723186 A CN109723186 A CN 109723186A
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side plate
prefabricated components
reversed beam
concrete
sealing
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CN109723186B (en
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孙星亮
余学胜
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China MCC17 Group Co Ltd
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China MCC17 Group Co Ltd
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Abstract

The invention discloses the construction methods of a kind of prefabricated components of sealing reversed beam and sealing reversed beam, belong to the realm of building construction.Prefabricated components include side plate, floor, tongue and groove, preformed hole and reinforcing bar, side plate quantity is two pieces, floor two sides are symmetricly set on, side plate is connect with floor, and floor one end is flushed with side plate, the other end is lower than side plate height, tongue and groove is located at side plate both ends, and preformed hole is symmetricly set on side plate, and reinforcing bar is placed in side plate, and surface of side plate is stretched out in reinforcing bar one end, one end that reinforcing bar stretches out surface of side plate is that floor and side plate flush opposite one end;A kind of sealing reversed beam construction method of non-dismantling formwork is designed according to prefabricated components, sealing reversed beam concrete formation perception made of the present invention is good, and one-pass molding is high-efficient, and waterproof performance is good, and do not need to carry out demoulding work to sealing reversed beam, have the advantages that simple structure and reasonable design, easily fabricated.

Description

A kind of prefabricated components of sealing reversed beam and the construction method of sealing reversed beam
Technical field
The invention belongs to technical field of building construction, prefabricated components more specifically to a kind of sealing reversed beam and only The construction method of water reversed beam.
Background technique
When sealing reversed beam generally refers to be isolated from the outside between there is boiled water room in kitchen, toilet etc., the setting in the foot of a wall portion Upper reversed beam concrete waterstop.Similar position is in addition, outer rain cover inside, parapet root, the staircase the foot of a wall portion for going out roofing etc. Deng.
In order to guarantee that kitchen, toilet structure are impermeable, the structure for usually requiring that sealing reversed beam and being connect with sealing reversed beam Carry out primary concreting.And when to sealing reversed beam in existing building and the structure primary concreting being connect with sealing reversed beam, exist It is easy to run mould after sealing reversed beam concrete formation, concrete formation perception is poor, is easy to produce infiltration, and construction quality cannot be protected The problem of card.It will increase the workload of construction, increase construction cost.And it is secondary pour sealing reversed beam construction can generate The problem of conjunction old and new concret difference, so that the construction quality of sealing reversed beam cannot be protected;And carry out secondary pour only When water reversed beam, later period demoulding is also needed after the completion of concreting, not only increases the usage amount of mould material, the maintenance in later period Cost is also bigger, and construction efficiency is low.
Through retrieving, Chinese Patent Application No. 201510067762.8, the applying date is a kind of " kitchen and toilet of 2015.02.10 The construction method that sealing reversed beam pours " comprising following step: mould holder is hung in production;Hanging mould holder is similar " η " shape structure, The two sides for hanging mould holder offer connecting hole;Set up template;Mould holder bottom is hung by Screw arbor with nut at both-ends and wall connecting, hangs mould Bracket two sides are connected by connecting hole with the lumps of wood, and the middle position for hanging mould holder is provided with collar tie beam, the reinforcing bar of collar tie beam and floor Binding and fixing;Casting concrete;The concrete of collar tie beam and floor is first poured, waits 20-40 minutes, concrete is without mobility, then pours The concrete of sealing reversed beam;Demoulding maintenance.It can be shortened the construction period, and reduce cost, and work progress is safe and reliable;But it needs to make Template increases use cost using mould material, construction it is relatively inefficient.
For another example Chinese Patent Application No. is 201610424075.1, and the applying date is a kind of " prefabricated overlapping of 2016.06.16 Prefabricating technique construction technology of plate sealing reversed beam " comprising aluminum alloy mould plate, sealing beam arrangement of reinforcement, rear pouring concrete plate and pre- Concrete component processed, rear pouring concrete board bottom portion is equipped with precast concrete, after aluminum alloy mould plate and sealing beam arrangement of reinforcement are set to In the middle part of pouring concrete plate, aluminum alloy mould plate is set on the outside of sealing beam arrangement of reinforcement.It can guarantee construction quality, pour the sealing of completion Reversed beam good water-proof effect;But it after completing the pouring of sealing reversed beam, needs to demould aluminum alloy mould plate, reduces construction efficiency, Increase construction cost.
Summary of the invention
1. to solve the problems, such as
When pouring for existing sealing reversed beam, need to dismantle template, and the problem that construction efficiency is low, at high cost, the present invention A kind of prefabricated components of sealing reversed beam and the construction method of sealing reversed beam, manufactured sealing reversed beam concrete formation perception are provided Good, one-pass molding is high-efficient, and waterproof performance is good, and does not need to carry out demoulding work to sealing reversed beam.
2. technical solution
To solve the above-mentioned problems, the technical solution adopted in the present invention is as follows:
A kind of prefabricated components of sealing reversed beam of the invention, including side plate, floor, tongue and groove, preformed hole and reinforcing bar, it is described Side plate quantity be two pieces, be symmetricly set on floor two sides, side plate is connect with floor, and described floor one end is flushed with side plate, The other end is lower than side plate height, and the tongue and groove is located at side plate both ends, and preformed hole is symmetricly set on side plate, and the reinforcing bar is set In in side plate, and surface of side plate is stretched out in reinforcing bar one end, one end that reinforcing bar stretches out surface of side plate is floor and side plate flush it is opposite One end.
A kind of construction method of sealing reversed beam of the invention, the sealing reversed beam include at least one above-mentioned prefabricated structure Part, comprising the following steps:
S1, the size for determining prefabricated components, the sealing reversed beam that width and the needs of prefabricated components pour are of same size;
S2, the template that prefabricated components are made according to the size of prefabricated components;
S3, the casting concrete into the template of prefabricated components are embedded with reinforcing bar in concrete, solidify, take to prefabricated components Lower template completes the production of prefabricated components;
S4, first prefabricated component be arranged in scheduled sealing reversed beam pour medium position, the side plate of prefabricated components and The groove that floor is formed is fastened on the U-stirrups of sealing reversed beam, the embedded bar and sealing reversed beam lower end that side plate one end is stretched out Reinforcing bar connection on beam;
S5, it needs other prefabricated components to be used to be arranged in first prefabricated components both ends sealing reversed beam, and passes through two The tongue and groove at end is engaged and installed in scheduled sealing reversed beam casting position;
S6, at sealing reversed beam both ends, after the completion of cutting prefabricated components according to size actually required, after cutting Prefabricated components are closely connect with the prefabricated components at intermediate position;
S7, to a small amount of concrete is tentatively poured at each plate face of prefabricated components, after concrete tentatively condenses, to prefabricated components Internal casting concrete, and the plane that concrete top is flushed with side plate and floor is equal;
S8, after pouring 24 hours, water seasoning is carried out.
As preferred embodiments of the present invention, in the step S1, when determining the size of prefabricated components, it need to guarantee corresponding ruler Very little weight concrete is 5-15 ㎏.
As preferred embodiments of the present invention, in the step S2, the side plate and floor thickness range of prefabricated components are 25-35mm。
As preferred embodiments of the present invention, in the step S3, prefabricated components both side plate flushes phase with floor and side plate Pair both ends be respectively embedded with reinforcing bar, reinforcing bar stretches out surface of side plate, extension elongation >=15mm.
As preferred embodiments of the present invention, in the step S5, after adjacent prefabricated components tongue and groove engaging, using to drawing Screw rod runs through preformed hole.
As preferred embodiments of the present invention, in the step S7, pours to prepare to compensate using swelling agent with concrete and mix Solidifying soil is shunk, and swelling agent dosage is 28-32 ㎏/m3, concrete strength >=25MPa, limited expansion rate >=0.015, water-cement ratio≤ 0.5, slump range 12-14cm.
As preferred embodiments of the present invention, in the step S7, pour with concrete strength and prefabricated components concrete Intensity is identical.
3. beneficial effect
Compared with the prior art, the invention has the benefit that
(1) prefabricated components of a kind of sealing reversed beam of the invention, structure is simple, and design is rationally, easily fabricated, whole to use Concreting provides certain intensity for subsequent construction, and two sides side plate defines the width of prefabricated components and sealing reversed beam, Floor is used to connect the both side plate on prefabricated components both sides, and floor and side plate height differ, there are groove between floor and side plate, one When aspect pours convenient for sealing reversed beam, engage with U-stirrups, on the other hand, so that the sealing reversed beam lower end poured is integrated The effect of formula, water-impervious is more preferable, and the setting of tongue and groove between prefabricated components convenient for being engaged to together, and relative position is stablized, preformed hole It is connected for adjacent prefabricated components, guarantees to connect into an entirety between prefabricated components, reinforcing bar is used for and sealing reversed beam lower end Beam connection, the relative position between sealing reversed beam and the beam of sealing reversed beam lower end is determined, so that entire prefabricated components are more convenient for It uses;
(2) construction method of a kind of sealing reversed beam of the invention, sealing reversed beam do template using prefabricated components, pour coagulation The native later period does not have to disassembly, and prefabricated components solve the problems, such as later period demoulding, reduce as a part for sealing inverted beam structure Workload in work progress reduces the duration, has saved material, reduces expenditure time and manpower and economic expenditure;
(3) construction method of a kind of sealing reversed beam of the invention, according to the prefabricated structure of size design of the sealing reversed beam of setting Part size, and ensure that the weight of prefabricated components is 5-15 ㎏, at this point, the weight of prefabricated components is suitable for carrying, and will not be in sealing Excessive use prefabricated components, complex work increase workload in the work progress of reversed beam;
(4) a kind of construction method of sealing reversed beam of the invention, the side plate of prefabricated components and the thickness range of floor are 25-35mm, in order to ensure the intensity of prefabricated components, side plate and floor need to be more than or equal to 25mm, meanwhile, it is prefabricated in order to guarantee The thickness of casting concrete needs to guarantee the thickness of side plate and floor so that the percolation-proof effect of sealing reversed beam is good among component Less than or equal to 35mm;
(5) construction method of a kind of sealing reversed beam of the invention, reinforcing bar is for fixing prefabricated components and sealing reversed beam lower end The relative position of beam needs to guarantee that reinforcing bar extension elongation is not less than the protective layer thickness of fine strain of millet reinforcing bar;Using Screw arbor with nut at both-ends through pre- Box out, keep the relatively stable of contiguous prefabricated member position, reinforce the globality of prefabricated components, solve there are one-time-concreting at It is easy to run mould after the sealing reversed beam concrete formation of type, concrete formation perception is poor, is easy to produce infiltration, and construction quality cannot obtain To the problem of guarantee;
(6) construction method of a kind of sealing reversed beam of the invention, sealing reversed beam is poured to be used with concrete and prefabricated components Concrete it is identical, when structural concrete reaches initial set, then sealing reversed beam concrete is poured, so that sealing reversed beam is pouring When, it is not strong to be less prone to conjunction old and new concret, the phenomenon that gap occurs, for the ease of the transport and consolidation of concrete, needs Guarantee that its slump range is 120-140mm, meanwhile, for the contraction during reply concrete setting, need in concrete Swelling agent is added, the dosage of swelling agent is 28-32 ㎏/m3
Detailed description of the invention
Technical solution of the present invention is described in further detail below with reference to drawings and examples, but should Know, these attached drawings are designed for task of explanation, therefore not as the restriction of the scope of the invention.In addition, except non-specifically It points out, these attached drawings are meant only to conceptually illustrate structure construction described herein, without to be drawn to scale.
Fig. 1 is the view towards lateral plates of prefabricated components of the present invention;
Fig. 2 is the overall structure diagram of prefabricated components of the present invention;
Fig. 3 is the view towards floor face of prefabricated components of the present invention;
Fig. 4 is the connection figure between the contiguous prefabricated component of the present invention;
Fig. 5 is prefabricated components right angle turn spliced map of the present invention.
In attached drawing: 1, side plate;2, floor;3, tongue and groove;4, preformed hole;5, reinforcing bar;6, Screw arbor with nut at both-ends.
Specific embodiment
Hereafter to the detailed description of exemplary embodiment of the present invention with reference to attached drawing, which forms one of description Point, it has been shown as example enforceable exemplary embodiment of the invention in the figure.Although these exemplary embodiment quilts Sufficiently describe in detail so that those skilled in the art can implement the present invention, it is to be understood that can realize other embodiments and Can without departing from the spirit and scope of the present invention to the present invention various changes can be made.Hereafter to the embodiment of the present invention More detailed description is not limited to required the scope of the present invention, and just to be illustrated and do not limit pair The description of the features of the present invention and feature to propose to execute best mode of the invention, and is sufficient to make those skilled in the art It can implement the present invention.Therefore, the scope of the invention is only defined by the appended claims.
Hereafter detailed description of the present invention and example embodiment are more fully understood in combination with attached drawing, wherein of the invention Element and feature are identified by appended drawing reference.
A kind of prefabricated components of sealing reversed beam of the invention, including side plate 1, floor 2, tongue and groove 3, preformed hole 4 and reinforcing bar 5.1 quantity of side plate is two pieces, is symmetricly set on 2 two sides of floor, and side plate 1 is connect with floor 2, and 2 one end of floor is flushed with side plate 1, The other end is located at 1 both ends of side plate lower than 1 height of side plate, tongue and groove 3, and preformed hole 4 is symmetricly set on side plate 1, and reinforcing bar 5 is placed in side plate In 1, and 1 surface of side plate is stretched out in 5 one end of reinforcing bar, and it is opposite that one end that reinforcing bar 5 stretches out 1 surface of side plate is that floor 2 and side plate 1 flush One end.Prefabricated components structure is simple, and design is rationally, easily fabricated, whole to use concreting, provides centainly for subsequent construction Intensity, two sides side plate 1 defines the width of prefabricated components and sealing reversed beam, and floor 2 is for connecting prefabricated components both sides Both side plate 1, floor 2 and 1 height of side plate differ, and there are grooves between floor 2 and side plate 1, on the one hand pour convenient for sealing reversed beam When, engage with U-stirrups, on the other hand, so that the sealing reversed beam lower end poured is integral type, the effect of water-impervious is more preferable, enterprise Convenient for being engaged to together between prefabricated components, relative position is stablized for the setting of mouth 3, and preformed hole 4 connects for adjacent prefabricated components It connects, guarantees to connect into an entirety between prefabricated components, reinforcing bar 5 determines that sealing is anti-for connecting with the beam of sealing reversed beam lower end Relative position between beam and the beam of sealing reversed beam lower end so that entire prefabricated components be more convenient for using.
A kind of construction method of sealing reversed beam of the invention, sealing reversed beam include at least one above-mentioned prefabricated component, packet Include following steps:
S1, the size for determining prefabricated components, the sealing reversed beam that width and the needs of prefabricated components pour are of same size;It determines When the size of prefabricated components, it need to guarantee that the weight concrete of corresponding size is 5-15 ㎏.Sealing reversed beam does mould using prefabricated components Plate, casting concrete later period do not have to disassembly, and prefabricated components solve later period demoulding as a part for sealing inverted beam structure Problem reduces the workload in work progress, reduces the duration, has saved material, reduces expenditure time and manpower and economy Expenditure.According to the size design prefabricated components size of the sealing reversed beam of setting, and ensure that the weight of prefabricated components is 5-15 ㎏, this When, the weight of prefabricated components is suitable for carrying, and excessive in the work progress of sealing reversed beam will not use prefabricated components, complicated Work increases workload.
S2, the template that prefabricated components are made according to the size of prefabricated components.
S3, the casting concrete into the template of prefabricated components are embedded with reinforcing bar 5 in concrete, reach to prefabricated components and tear open After mould condition (solidification), template is removed, completes the production of prefabricated components;The side plate 1 and 2 thickness range of floor of prefabricated components be 25-35mm;Prefabricated components both side plate 1 flushes opposite both ends with floor 2 and side plate 1 and is respectively embedded with reinforcing bar 5,5 protruding side of reinforcing bar 1 surface of plate, extension elongation >=15mm.In order to ensure the intensity of prefabricated components, the thickness needs of side plate 1 and floor 2 are more than or equal to 25mm, meanwhile, in order to guarantee the thickness of casting concrete among prefabricated components, so that the percolation-proof effect of sealing reversed beam is good, need Guarantee that the thickness of side plate 1 and floor 2 is less than or equal to 35mm.Reinforcing bar 5 is used to fix prefabricated components and sealing reversed beam bottom end rail Relative position needs to guarantee 5 extension elongations of reinforcing bar >=15mm to guarantee the protective layer thickness of fine strain of millet reinforcing bar.
S4, it first prefabricated component is arranged in scheduled sealing reversed beam pours medium position, 1 He of side plate of prefabricated components The U-stirrups that the groove that floor 2 is formed is fastened on sealing reversed beam (for meeting anti-shear intensity, and are coupled stress main reinforcement With compressive region mix tendons skeleton mainly be in U-shape or the reinforcing bar of C-shaped) on, 1 one end of side plate stretch out embedded bar 5 and sealing reversed beam Reinforcing bar connection on bottom end rail;Run through preformed hole 4 using Screw arbor with nut at both-ends 6, keeps the relatively stable of contiguous prefabricated member position, add The globality of strong prefabricated components solves and runs mould, coagulation there are easy after the molding sealing reversed beam concrete formation of one-time-concreting The problem of earth forming perception is poor, is easy to produce infiltration, and construction quality cannot be guaranteed.
S5, it needs other prefabricated components to be used to be arranged in first prefabricated components both ends sealing reversed beam, and passes through two The tongue and groove 3 at end is engaged and installed in scheduled sealing reversed beam casting position;After adjacent prefabricated components tongue and groove 3 engages, using to drawing Screw rod 6 runs through preformed hole 4.
S6, at sealing reversed beam both ends, after the completion of cutting prefabricated components according to size actually required, after cutting Prefabricated components are closely connect with the prefabricated components at intermediate position.
S7, to a small amount of concrete is tentatively poured at each plate face of prefabricated components, after concrete tentatively condenses, to prefabricated components Internal casting concrete, and the plane that concrete top is flushed with side plate and floor is equal;It pours with concrete using swollen Swollen dose of preparation compensating concrete is shunk, and swelling agent dosage is 28-32 ㎏/m3, concrete strength >=25MPa, limited expansion rate is (mixed The strain value that reinforcing bar is imported when coagulating the expansion of soil by the limitation of the obligatory points such as reinforcing bar, is indicated with the unit length stretch value of reinforcing bar.It is logical The deformation for crossing the certain unidirectional limitation utensil of the measurement ratio of reinforcement can obtain limited expansion rate) >=0.015, (every cube of water-cement ratio The ratio of rice concrete water amount and all gel material contents)≤0.5, the slump (refers to the workability of concrete, specifically It is ensuring that being normally carried out for construction, including the water-retaining property of concrete, mobility and sticks poly- property.The slump is measured with one Change index to measure the height of its degree, for judging that can construction be normally carried out.Workability refers to whether concrete is easy to apply Work operation and uniformly densely performance, are that a very comprehensive performance wherein includes mobility, sticks poly- property and water-retaining property.Influence and Easy property mainly has Water Usage Per Unit Volume, the ratio of mud, sand coarse aggregate ratio and including cement type, aggregate condition, time and temperature, additional Several aspects such as agent) range be 12-14cm;It pours identical as prefabricated components concrete composition with concrete composition.Sealing reversed beam Pour it is identical as the concrete that prefabricated components use with concrete so that sealing reversed beam when pouring, is less prone to new and old coagulation Native combination is not strong, the phenomenon that gap occurs, for the ease of the transport and consolidation of concrete, needs to guarantee that its slump range is 12-14cm, meanwhile, for the collapse for coping with concrete, need to be added swelling agent in concrete, the dosage of swelling agent is 28-32 ㎏/m3
S8, after pouring 24 hours, water seasoning is carried out.
Embodiment 1
As shown in Figure 1-Figure 3, the prefabricated components of a kind of sealing reversed beam of the present embodiment, including side plate 1, floor 2, tongue and groove 3, Preformed hole 4 and reinforcing bar 5.
1 quantity of side plate is two pieces, is symmetricly set on 2 two sides of floor, and side plate 1 is connect with floor 2,2 one end of floor and side plate 1 It flushes, the other end is located at 1 both ends of side plate lower than 1 height of side plate, tongue and groove 3, and preformed hole 4 is symmetricly set on side plate 1, and reinforcing bar 5 is set In in side plate 1, and 1 surface of side plate is stretched out in 5 one end of reinforcing bar, and one end that reinforcing bar 5 stretches out 1 surface of side plate is that floor 2 and side plate 1 flush Opposite one end.With width, prefabricated components height is 300mm, 1 length 400mm of side plate, thickness for prefabricated components width and sealing reversed beam 30mm, floor 2 height 100mm, thickness 30mm among component, in order to meet specification and drawing to the thickness of fine strain of millet cover to reinforcement Requirement, the exposed height of reinforcing bar 5 is 15mm, and concrete prefabricated element weight is 10.2 ㎏.
Embodiment 2
The present embodiment is identical as 1 structure of embodiment, the difference is that, prefabricated components width and sealing reversed beam are same wide, Prefabricated components height is 310mm, side plate 1 length 300mm, thickness 25mm, the 2 height 100mm of floor among component, thickness 25mm, concrete prefabricated element weight are about 5.0 ㎏.
Embodiment 3
The present embodiment is identical as 1 structure of embodiment, the difference is that, prefabricated components width and sealing reversed beam are same wide, Prefabricated components height is 300mm, side plate 1 length 450mm, thickness 25mm, the 2 height 100mm of floor among component, thickness 35mm, concrete prefabricated element weight are about 11.0 ㎏.
Embodiment 4
As shown in figure 4, according to a kind of prefabricated components of sealing reversed beam of embodiment 1, a kind of sealing reversed beam of the present embodiment Construction method, comprising the following steps:
S1, the size for determining prefabricated components, the sealing reversed beam that width and the needs of prefabricated components pour are of same size;It determines When the size of prefabricated components, it need to guarantee that the weight concrete of corresponding size is 10.2 ㎏.
S2, the template that prefabricated components are made according to the size of prefabricated components.
S3, the casting concrete into the template of prefabricated components are embedded with reinforcing bar 5 in concrete, reach to prefabricated components and tear open After mould condition (solidification), template is removed, completes the production of prefabricated components;The side plate 1 and 2 thickness of floor of prefabricated components be 30mm;Prefabricated components both side plate 1 flushes opposite both ends with floor 2 and side plate 1 and is respectively embedded with reinforcing bar 5, and reinforcing bar 5 stretches out side plate 1 Surface, extension elongation 15mm.
S4, it first prefabricated component is arranged in scheduled sealing reversed beam pours medium position, 1 He of side plate of prefabricated components The groove that floor 2 is formed is fastened on the U-stirrups of sealing reversed beam, the embedded bar 5 and sealing reversed beam that 1 one end of side plate is stretched out Reinforcement welding on bottom end rail.
S5, it needs other prefabricated components to be used to be arranged in first prefabricated components both ends sealing reversed beam, and passes through two The tongue and groove 3 at end is engaged and installed in scheduled sealing reversed beam casting position;After adjacent prefabricated components tongue and groove 3 engages, using to drawing Screw rod 6 runs through preformed hole 4.
S6, to a small amount of concrete is tentatively poured at each plate face of prefabricated components, after concrete tentatively condenses, to prefabricated components Internal casting concrete, and the plane that concrete top is flushed with side plate and floor is equal;It pours with concrete using swollen Swollen dose of preparation compensating concrete is shunk, and swelling agent dosage is 30 ㎏/m3, concrete strength 30MPa, limited expansion rate is 0.015, water-cement ratio 0.5, slump range 13cm;It pours identical as prefabricated components concrete composition with concrete composition.
S7, after pouring 24 hours, water seasoning is carried out.
Embodiment 5
As shown in figure 5, according to a kind of prefabricated components of sealing reversed beam of embodiment 2, a kind of sealing reversed beam of the present embodiment Construction method, comprising the following steps:
S1, the size for determining prefabricated components, the sealing reversed beam that width and the needs of prefabricated components pour are of same size;It determines When the size of prefabricated components, it need to guarantee that the weight concrete of corresponding size is 5.0 ㎏.
S2, the template that prefabricated components are made according to the size of prefabricated components.
S3, the casting concrete into the template of prefabricated components are embedded with reinforcing bar 5 in concrete, reach to prefabricated components and tear open After mould condition (solidification), template is removed, completes the production of prefabricated components;The side plate 1 and 2 thickness of floor of prefabricated components be 25mm;Prefabricated components both side plate 1 flushes opposite both ends with floor 2 and side plate 1 and is respectively embedded with reinforcing bar 5, and reinforcing bar 5 stretches out side plate 1 Surface, extension elongation 28mm.
S4, it first prefabricated component is arranged in scheduled sealing reversed beam pours medium position, 1 He of side plate of prefabricated components The groove that floor 2 is formed is fastened on the U-stirrups of sealing reversed beam, the embedded bar 5 and sealing reversed beam that 1 one end of side plate is stretched out Reinforcement welding on bottom end rail.
S5, it needs other prefabricated components to be used to be arranged in first prefabricated components both ends sealing reversed beam, and passes through two The tongue and groove 3 at end is engaged and installed in scheduled sealing reversed beam casting position;After adjacent prefabricated components tongue and groove 3 engages, using to drawing Screw rod 6 runs through preformed hole 4.
S6, at sealing reversed beam both ends, by prefabricated components along 45° angle cutting after, two prefabricated components of corner are closely connected It connects.
S7, to a small amount of concrete is tentatively poured at each plate face of prefabricated components, after concrete tentatively condenses, to prefabricated components Internal casting concrete, and the plane that concrete top is flushed with side plate and floor is equal;It pours with concrete using swollen Swollen dose of preparation compensating concrete is shunk, and swelling agent dosage is 28 ㎏/m3, concrete strength 25MPa, limited expansion rate is 0.021, water-cement ratio 0.45, slump range 120mm;It pours with concrete composition and prefabricated components concrete composition phase Together.
S8, after pouring 24 hours, water seasoning is carried out.
Embodiment 6
According to a kind of prefabricated components of sealing reversed beam of embodiment 3, a kind of construction method of sealing reversed beam of the present embodiment, The following steps are included:
S1, the size for determining prefabricated components, the sealing reversed beam that width and the needs of prefabricated components pour are of same size;It determines When the size of prefabricated components, it need to guarantee that the weight concrete of corresponding size is 15.0 ㎏.
S2, the template that prefabricated components are made according to the size of prefabricated components.
S3, the casting concrete into the template of prefabricated components are embedded with reinforcing bar 5 in concrete, reach to prefabricated components and tear open After mould condition (solidification), template is removed, completes the production of prefabricated components;The side plate 1 and 2 thickness of floor of prefabricated components be 35mm;Prefabricated components both side plate 1 flushes opposite both ends with floor 2 and side plate 1 and is respectively embedded with reinforcing bar 5, and reinforcing bar 5 stretches out side plate 1 Surface, extension elongation 15mm.
S4, it first prefabricated component is arranged in scheduled sealing reversed beam pours medium position, 1 He of side plate of prefabricated components The groove that floor 2 is formed is fastened on the U-stirrups of sealing reversed beam, the embedded bar 5 and sealing reversed beam that 1 one end of side plate is stretched out Reinforcing bar on bottom end rail is fastenedly connected.
S5, it needs other prefabricated components to be used to be arranged in first prefabricated components both ends sealing reversed beam, and passes through two The tongue and groove 3 at end is engaged and installed in scheduled sealing reversed beam casting position;After adjacent prefabricated components tongue and groove 3 engages, clamp is used Block preformed hole 4.
S6, at sealing reversed beam both ends, by prefabricated components along 45° angle cutting after, two prefabricated components of corner are closely connected It connects.
S7, to a small amount of concrete is tentatively poured at each plate face of prefabricated components, after concrete tentatively condenses, to prefabricated components Internal casting concrete, and the plane that concrete top is flushed with side plate and floor is equal;It pours with concrete using swollen Swollen dose of preparation compensating concrete is shunk, and swelling agent dosage is 32 ㎏/m3, concrete strength 30MPa, limited expansion rate is 0.023, water-cement ratio 0.48, slump range 14cm;It pours identical as prefabricated components concrete composition with concrete composition.
S8, after pouring 24 hours, water seasoning is carried out.

Claims (8)

1. a kind of prefabricated components of sealing reversed beam, it is characterised in that: including side plate (1), floor (2), tongue and groove (3), preformed hole (4) And reinforcing bar (5), the side plate (1) quantity are two pieces, are symmetricly set on floor (2) two sides, side plate (1) and floor (2) are even It connects, the floor (2) one end is flushed with side plate (1), and the other end is located at side plate lower than side plate (1) height, the tongue and groove (3) (1) both ends, preformed hole (4) are symmetricly set on side plate (1), and the reinforcing bar (5) is placed in side plate (1), and reinforcing bar (5) one end Side plate (1) surface is stretched out, one end that reinforcing bar (5) stretches out side plate (1) surface is that floor (2) and side plate (1) flush opposite one end.
2. a kind of construction method of sealing reversed beam, the sealing reversed beam include the prefabricated components of at least one claim 1, special Sign is: method includes the following steps:
S1, the size for determining prefabricated components, the sealing reversed beam that width and the needs of prefabricated components pour are of same size;
S2, the template that prefabricated components are made according to the size of prefabricated components;
S3, the casting concrete into the template of prefabricated components are embedded with reinforcing bar (5) in concrete, solidify, remove to prefabricated components Template completes the production of prefabricated components;
S4, it first prefabricated component is arranged in scheduled sealing reversed beam pours medium position, the side plate (1) and rib of prefabricated components The groove that plate (2) is formed is fastened on the U-stirrups of sealing reversed beam, the embedded bar (5) and sealing that side plate (1) one end is stretched out Reinforcing bar connection on reversed beam bottom end rail;
S5, it needs other prefabricated components to be used to be arranged in first prefabricated components both ends sealing reversed beam, and passes through both ends Tongue and groove (3) is engaged and installed in scheduled sealing reversed beam casting position;
S6, at sealing reversed beam both ends, it is prefabricated after cutting after the completion of cutting prefabricated components according to size actually required Component is closely connect with the prefabricated components at intermediate position;
S7, to tentatively pouring a small amount of concrete at each plate face of prefabricated components, after concrete tentatively condenses, to the inside of prefabricated components Casting concrete, and the plane that concrete top is flushed with side plate (1) and floor (2) is equal;
S8, after pouring 24 hours, water seasoning is carried out.
3. a kind of construction method of sealing reversed beam according to claim 2, it is characterised in that: in the step S1, really When determining the size of prefabricated components, it need to guarantee that the weight concrete of corresponding size is 5-15 ㎏.
4. a kind of construction method of sealing reversed beam according to claim 2, it is characterised in that: in the step S3, in advance The side plate (1) and floor (2) thickness range of component processed are 25-35mm.
5. a kind of construction method of sealing reversed beam according to claim 2, it is characterised in that: in the step S3, in advance Component both side plate (1) processed flushes opposite both ends with floor (2) and side plate (1) and is respectively embedded with reinforcing bar (5), reinforcing bar (5) protruding side Plate (1) surface, extension elongation >=15mm.
6. a kind of construction method of sealing reversed beam according to claim 2, it is characterised in that: in the step S5, phase After adjacent prefabricated components tongue and groove (3) engaging, run through preformed hole (4) using Screw arbor with nut at both-ends (6).
7. according to a kind of described in any item construction methods of sealing reversed beam of claim 2-6, it is characterised in that: the step In S7, pours and compensating concrete contraction is prepared using swelling agent with concrete, swelling agent dosage is 28-32 ㎏/m3, strong concrete Degree >=25MPa, limited expansion rate >=0.015, water-cement ratio≤0.5, slump range 12-14cm.
8. a kind of construction method of sealing reversed beam according to claim 7, it is characterised in that: in the step S7, pour It builds identical as prefabricated components concrete strength with concrete strength.
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