CN112411883A - Cast-in-place floor hogging moment rib variable-spacing steel bar welding net and construction method - Google Patents
Cast-in-place floor hogging moment rib variable-spacing steel bar welding net and construction method Download PDFInfo
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- CN112411883A CN112411883A CN202011342071.1A CN202011342071A CN112411883A CN 112411883 A CN112411883 A CN 112411883A CN 202011342071 A CN202011342071 A CN 202011342071A CN 112411883 A CN112411883 A CN 112411883A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
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Abstract
The invention discloses a cast-in-place floor hogging moment rib variable-spacing steel bar welding net and a construction method, relates to the technical field of building construction, and aims to solve the problems that when a plate surface welding net serving as hogging moment ribs is laid, the positioning is difficult and longitudinal and transverse ribs are overlapped to cause insufficient thickness of a concrete protective layer; the invention comprises a surface net welded by a plurality of transverse and longitudinal vertical steel bars, wherein the surface net is laid on a longitudinal high beam, longitudinal positioning holes are reserved on the surface net, the number of the longitudinal positioning holes is equal to the number of the high beams spanned by the surface net, the positions of the longitudinal positioning holes on the surface net are consistent with the positions of the high beams, and the distance between the adjacent steel bars on the two sides of the longitudinal positioning holes is consistent with the width of the high beam at the position; the invention is beneficial to improving the construction quality of the hogging moment reinforcement of the cast-in-place concrete floor slab, simultaneously can reasonably save steel, reduce labor and accelerate construction speed, and in addition, the reinforcements of all the nets can be perfectly aligned, and the joints are contacted, so that the force transmission of the stressed reinforcement is more effective.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a cast-in-place floor hogging moment rib variable-spacing steel bar welding net and a construction method.
Background
The cast-in-place concrete floor slab reinforcement is usually constructed in a manual binding mode, the manual binding speed is low, the efficiency is low, the manual consumption is large, and the steel bar spacing is uneven. Some more advanced owners, design or construction units can adopt a steel bar welding net (hereinafter referred to as a 'welding net'), the plate bottom welding net usually has no problem, but the plate bottom welding net (hereinafter referred to as a 'surface net') serving as a negative moment reinforcement can only ensure that the diameter and the distance of the steel bars in the surface net strictly meet the design requirements, the overlapping position and the length in the arrangement scheme theoretically meet the standard requirements, but when the plate is really laid by workers in a construction site, the workers do not have a positioning basis, dozens of surface nets are laid, errors can be accumulated and become errors, for example, a common practical construction condition is that one surface net is more than square and about 200kg, once the surface net is laid down, the surface net is interwoven with the longitudinal and transverse steel bars of the peripheral surface net, and then the difficulty in adjusting the position is raised, so that the overlapping length of the steel bars in the short direction and the long direction is short, and the overlapping position is not consistent with that in the design scheme, the stress on the structure is extremely unfavorable, and even the floor slab has cracking risk;
from a microscopic view, the longitudinal and transverse steel bars in the surface net are overlapped, so that the height of the steel bars is the sum of the diameters of the longitudinal and transverse steel bars, and the top surface elevation of the floor is determined, so that the thickness of a concrete protection layer above the steel bars of the surface net of the floor is insufficient (as shown in fig. 1), and the concrete protection layer is easy to crack locally after bearing load. Therefore, a cast-in-place floor hogging moment rib variable-spacing steel bar welding net and a construction method are urgently needed to solve the problem.
Disclosure of Invention
The inventor envisages that the above problems can be solved if a certain positioning means can be made between the veil and the beam; in the actual construction work, the intersection of the longitudinal and transverse beams is actually the lap joint of the main bars of the longitudinal and transverse beams in the vertical direction, that is to say, when the surface net is laid at the intersection of the longitudinal and transverse beams, the surface net is mainly laid on the high beam, the positioning can be realized only by clamping the surface net above the higher beam on the high beam, the beams in the single direction are the same and have no difference between the high beam and the low beam, also can be called as the high beams, as long as the surface net can be clamped on the beams in the direction, and the invention is a conceptual design based on the premise;
the invention aims to provide a cast-in-place floor hogging moment rib variable-spacing steel bar welding net and a construction method, and aims to solve the problems that when a plate surface welding net serving as a hogging moment rib is laid, the positioning is difficult, and longitudinal and transverse ribs are overlapped to cause insufficient thickness of a concrete protection layer.
In order to achieve the purpose, the invention provides the following technical scheme: a variable-spacing welded reinforcing steel bar mesh for the hogging moment bars of cast-in-situ floor slab and its construction method are disclosed, which features that a surface mesh is welded by multiple transverse and longitudinal vertical reinforcing steel bars and is laid on the longitudinal high beams, and the longitudinal locating holes are left on the surface mesh and equal to the number of high beams crossed by the surface mesh.
Preferably, the number of the joists is three, the width of each of the joists is a, b and c, the longitudinal positioning hollow comprises a first hollow, a second hollow and a third hollow, and the space between the reinforcing steel bars on the two sides of the first hollow, the second hollow and the third hollow is a, b and c respectively; the longitudinal steel bars of the surface net are welded at the lower ends of the transverse steel bars, and the longitudinal positioning hollow holes are clamped with the upper ends of the joists.
Preferably, the transverse low beams are further arranged in the vertical direction of the high beams, transverse positioning holes are reserved on the surface net, the number of the transverse positioning holes is equal to the number of the low beams spanned by the surface net, the positions of the transverse positioning holes on the surface net are consistent with the positions of the low beams, and the distance between adjacent steel bars on two sides of each transverse positioning hole is consistent with the width of the low beam where the transverse positioning hole is located.
Preferably, the lower beam is provided with one lower beam, the width of the lower beam is d, the distance between the steel bars on two sides of the transverse positioning cavity is d, the longitudinal steel bars of the surface net are welded at the lower ends of the transverse steel bars, the longitudinal steel bars are located above the lower beam, and the transverse positioning cavity is located right above the lower beam.
Preferably, the distance between adjacent steel bars at two sides of the longitudinal positioning hollow hole is more than the width of the high beam at the position by a positive integral multiple of 50 mm; the distance between adjacent steel bars on two sides of the transverse positioning hollow hole is more than the positive integral multiple of 50mm more than the width of the low beam where the transverse positioning hollow hole is located.
The invention provides another technical scheme, a construction method of a cast-in-place floor hogging moment rib variable-spacing steel bar welding net, which comprises the following steps of:
1) planning the length, width, lap joint mode and lap joint position of the surface net according to a design drawing, and planning a positioning cavity on the surface net according to the position and size of the beam to enable the positioning cavity to be consistent with the beam;
2) making a surface net arrangement planning drawing, and dividing the scheme into subareas according to construction section division and a construction plan of a construction unit;
3) manufacturing a specification table of each surface net, arranging a first reinforcing steel bar at a position which is 50mm away from the edge of the beam and is not more than 1/2 of reinforcing steel bar distance, and symmetrically starting the 1 st reinforcing steel bars at the two sides of the beam;
4) the manufacturing department strictly produces according to the specification table, makes the label mark, and strictly stores and delivers goods according to the partition and the sequence of the scheme;
5) during field construction, laying each veil to a planning position according to the arrangement planning diagram of the veils, the subareas, the sequence and the label marks; when the pavement is carried out, the positioning holes of the surface net at the high beam are clamped to the upper end of the high beam, the positioning holes of the surface net at the low beam are aligned to be right above the low beam, and the lap joint is firmly bound by binding wires;
6) and after the acceptance is qualified, concrete is poured.
Preferably, in the step 3), the starting position of the steel bars is adjusted to ensure that the steel bars at the longitudinal joints and the transverse joints of all the surface nets are aligned and contacted with the joints of the adjacent surface nets respectively.
Preferably, in step 5), the rebar junctions of adjacent surface nets are aligned and contacted during paving.
Compared with the prior art, the invention has the beneficial effects that:
1. the variable-spacing welded mesh for the cast-in-place floor hogging moment reinforcements and the construction method are beneficial to improving the construction quality of the cast-in-place concrete floor hogging moment reinforcements, during on-site construction, workers can rely on the positioning surface mesh with the positioning holes fast and accurately, the proper lapping position of the reinforcements is favorably ensured, the maximum stress is avoided, the lapping length can strictly meet the relevant standard requirements, meanwhile, steel can be reasonably saved, labor is reduced, the floor construction speed is accelerated, the construction quality is improved, the construction time is shortened, and the production cost is also saved.
2. The variable-spacing welded reinforcing steel bar mesh for the hogging moment reinforcement of the cast-in-place floor and the construction method further solve the problem that reinforcing steel bars are uneven after a large number of surface meshes are paved on a construction site.
3. According to the cast-in-place floor hogging moment rib variable-spacing steel bar welding net and the construction method, the height of the stirrup is not reduced without reducing the position of a beam top main rib, the distance from the upper end of the surface net to the standard height of the floor can be ensured to meet the design requirement under the condition of strictly operating according to the regulations, the bearing capacity of the structure is facilitated, and the condition that a concrete protective layer is easy to crack locally after bearing load can be greatly reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of a hogging moment bar of a floor slab in the prior art;
FIG. 2 is a schematic cross-sectional view of a hogging moment bar of a floor slab according to the present invention;
FIG. 3 is a schematic top view of a prior art veil laid on a beam;
FIG. 4 is a schematic top view of an embodiment of the present invention;
FIG. 5 is a schematic top view of the embodiment of FIG. 4 with a veil laid over the beam of FIG. 3;
FIG. 6 is a schematic top view of another prior art veil laid on a beam;
FIG. 7 is a schematic top view of another embodiment of the present invention;
fig. 8 is a schematic top view of the embodiment of fig. 7 with a veil laid over the beam of fig. 6.
In the figure: 1. longitudinally positioning the cavity; 1-1, a cavity I; 1-2, a cavity II; 1-3, cavity three; 2. transversely positioning the cavity; 3. a jowar; 4. and (5) low beams.
Detailed Description
In the present invention, "longitudinal" and "lateral" are vertical and horizontal directions when facing the drawing, which are only for convenience of description, and do not represent actual directions, and the actual directions are different according to the position where a person stands and the visual position, for example, after the drawing is rotated by 90 degrees, the longitudinal direction and the lateral direction are exchanged, so that the present invention should not be limited thereto.
Fig. 1 is a schematic cross-sectional view of a hogging moment bar of a floor slab in the prior art, and it can be seen that the existing surface net and the beam are simply paved, no joint part can be used for positioning, and the height is the sum of the diameters of the longitudinal bar and the transverse bar due to overlapping of the longitudinal bar and the transverse bar of the existing surface net, when the existing surface net is paved on the beam, the distance from the existing surface net to the elevation of the upper end of the floor slab is compressed, so that the thickness of concrete above the steel bar is influenced.
Fig. 2 is a schematic sectional view of the hogging moment reinforcement of the floor slab during the paving of the improved surface net of the invention, which is clearly contrasted with fig. 1, not only can the positioning be convenient, but also the thickness of the concrete above the reinforcement is increased by more than the diameter of the reinforcement.
The invention provides a cast-in-place floor hogging moment rib variable-spacing welded steel bar mesh, which comprises a surface mesh welded by a plurality of transverse and longitudinal vertical steel bars, wherein the surface mesh is laid on a longitudinal high beam 3, longitudinal positioning holes 1 are reserved on the surface mesh, the number of the longitudinal positioning holes is equal to the number of the high beams 3 spanned by the surface mesh, the positions of the longitudinal positioning holes 1 on the surface mesh are consistent with the positions of the high beams 3, and the spacing between the adjacent steel bars on two sides of the longitudinal positioning holes 1 is adaptive to the width of the high beam 3 where the longitudinal positioning holes are located, so that the rapid positioning and clamping are facilitated.
Based on the same invention concept, the invention also provides a construction method of the cast-in-place floor hogging moment rib variable-spacing steel bar welding net, which comprises the following steps:
1) according to a design drawing, specifically comprising information such as earthquake resistance grade, fortification intensity, concrete grade, plate span size, steel bar diameter and spacing, and the like, the length, width, lap joint mode and lap joint position of the surface net can be reasonably planned by combining relevant regulations of reinforced welded mesh concrete structure technical regulations, and the positioning holes in the surface net are planned according to the position and size of the beam to be consistent with the position and width of the beam;
2) making a surface net arrangement planning diagram, drawing a surface net frame without lap joint length, dividing the scheme into partitions according to construction section division and a construction plan of a construction unit, reducing short turnover of a site and avoiding time consumption when a surface net is turned over;
3) the specification table of each surface net is manufactured, a first reinforcing steel bar is arranged at the position, 50mm from the edge of the beam and not more than 1/2 of the distance between the reinforcing steel bars, the starting positions of the 1 st reinforcing steel bars on the two sides of the beam are symmetrical, in order to ensure that the reinforcing steel bars at the longitudinal joints and the transverse joints of all the surface nets respectively touch each other, the force transmission is facilitated, the starting positions of the reinforcing steel bars can be reasonably adjusted, but the adjustment is not too much to influence the bearing capacity of the structure;
4) the manufacturing department strictly produces according to the specification table, makes the label mark, and strictly stores and delivers goods according to the partition and the sequence of the scheme;
5) during on-site construction, if the pavement is laid for the first time, a manufacturer should send a professional technician to carry out on-site technical settlement and guide workers; laying each veil to a planning position according to the arrangement planning diagram of the veils, the subareas, the sequence and the label marks; when the surface net is paved, the positioning holes of the surface net at the high beam are clamped to the upper end of the high beam, the positioning holes of the surface net at the low beam are aligned to the position right above the low beam, the lap joint is firmly bound by binding wires, and in order to facilitate the force transmission, the steel bar joints of the adjacent surface nets need to be aligned and contacted when the surface net is paved;
6) and (5) performing self-inspection by workers, supervision and acceptance, and pouring concrete after acceptance is qualified.
Fig. 3 and 6 are schematic top views of a structure in which a veil is laid on a beam in the prior art, and fig. 4, 5, 7 and 8 are drawings of the following embodiments, and the same structural reference numerals are the same at the same positions in the drawings, and therefore, the same reference numerals are not repeated.
Example 1:
a cast-in-place floor hogging moment rib variable spacing steel bar welding net comprises a surface net welded by a plurality of transverse and longitudinal vertical steel bars, wherein the surface net is laid on a longitudinal high beam 3, longitudinal positioning holes 1 are reserved on the surface net, the number of the longitudinal positioning holes is equal to the number of the high beams 3 spanned by the surface net, the positions of the longitudinal positioning holes 1 on the surface net are consistent with the positions of the high beams 3, and the spacing between the adjacent steel bars on two sides of the longitudinal positioning holes 1 is adaptive to the width of the high beam 3 where the longitudinal positioning holes are located;
as shown in fig. 7-8, in the real situation of the present embodiment, there are three joists 3, the width of which is a, b and c, as shown in fig. 7, the longitudinal positioning cavity 1 includes a cavity one 1-1, a cavity two 1-2 and a cavity three 1-3, and the intervals between the steel bars on the two sides of the cavity one 1-1, the cavity two 1-2 and the cavity three 1-3 are a, b and c, respectively; the longitudinal steel bars of the surface net are welded at the lower ends of the transverse steel bars, and the longitudinal positioning hollow holes 1 are clamped with the upper ends of the joists 3; in order to prevent clamping difficulty caused by errors and leave a certain outcrop around the surface net for convenient and firm welding, the distances between the steel bars on two sides of the first hollow hole 1-1, the second hollow hole 1-2 and the third hollow hole 1-3 can be respectively a +50mm, b +50mm and c +50mm or a +100mm, b +100mm and c +100mm in practical operation, and the distances can be adjusted according to practical conditions and are generally positive integer multiples of 50 mm.
Example 2
The difference from the embodiment 1 is that the vertical direction of the high beam 3 is also provided with transverse low beams 4, see fig. 5, the surface net is provided with transverse positioning holes 2, the number of the transverse positioning holes 2 is equal to the number of the low beams 4 spanned by the surface net, the positions of the transverse positioning holes 2 on the surface net are consistent with the positions of the low beams 4, and the distance between adjacent steel bars at two sides of the transverse positioning holes 2 is consistent with the width of the low beam 4 at the position, see fig. 4.
Referring to fig. 4-5, in the actual situation of this embodiment, there is one low beam 4, the width of which is d, the distance between the two steel bars on the two sides of the transverse positioning cavity 2 is d, the longitudinal steel bar of the surface mesh is welded to the lower end of the transverse steel bar, the longitudinal steel bar is located above the low beam 4, and the transverse positioning cavity 2 is located right above the low beam 4; in order to leave a certain outcrop around the surface net for convenient welding and firmness, the distance between the steel bars on two sides of the transverse positioning cavity 2 can be d +50mm or d +100mm in actual operation, and the distance can be adjusted according to actual conditions and is generally positive integer times of 50 mm.
Example 3:
the embodiment adopts the scheme of the embodiment 2, and meanwhile, the invention is improved on the basis of a surface net M2 which is usually used in construction, and compared, wherein the size parameters of the existing surface net M2 are shown in the following table 1:
TABLE 1 dimensional parameters of prior art mesh M2
On the basis, the M2 veil of 10450x2300mm is improved; referring to fig. 4 and 5, in this embodiment, the widths a, b and c of the upper beam 3 are 450mm, 350mm and 350mm from left to right, respectively, so that the intervals between the reinforcing bars at the two sides of the first hollow 1-1, the second hollow 1-2 and the third hollow 1-3 are 500mm, 400mm and 400mm, respectively, the width of the lower beam 4 is 250mm, the interval between the reinforcing bars at the two sides of the transverse positioning hollow 2 is 300mm, and the improved M2 mesh size parameters are shown in the following table 2:
TABLE 2 size parameters of veil M2 in this example
As shown in figure 5, when in pavement, the two sides of the beam are respectively 25mm away from the nearest reinforcing steel bars, which is beneficial to the alignment of the meshes of all surfaces.
After the improvement, workers can quickly and accurately position the surface net by means of the positioning holes, the proper lapping position of the reinforcing steel bars is favorably ensured, the maximum stress position is avoided, the position can be infinitely close to the position which is the same as the designed structure, the lapping length can strictly meet the relevant standard requirements, the labor can be reduced, and the construction speed of the floor slab can be increased; the problem that reinforcing steel bars are uneven after a large number of surface nets are paved on a construction site is solved, and because each surface net is strictly arranged and planned and the positioning holes are aligned with the beams, the reinforcing steel bars of the surface nets can be perfectly aligned and the joints are contacted, force transmission of the stressed reinforcing steel bars is more effective, and the load borne by the floor slab is transferred according to the assumed route of a structural designer.
As can be seen from tables 1 and 2, 202.499-176.832 is 25.677kg, and the reasonable saving ratio of the reinforcing bars in this embodiment is 12.7%, which can save the cost.
Meanwhile, after the cast-in-place floor hogging moment rib variable-spacing steel bar welding net is adopted, the distance from the upper end of the surface net to the floor elevation can be ensured to meet the design requirement under the condition of not reducing the position of a beam top main rib and not reducing the height of a stirrup and ensuring that the operation is strictly operated according to the specification, the load-bearing capacity of the structure is facilitated, and the condition that a concrete protective layer is easy to crack locally after bearing load can be greatly reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (8)
1. The utility model provides a changeable interval welded steel bar of cast-in-place floor hogging moment muscle net, includes the face net that is welded into by many horizontal and vertical looks vertically reinforcing bar, its characterized in that: the surface net is laid on the longitudinal girders (3), the longitudinal positioning holes (1) are reserved on the surface net, the number of the longitudinal positioning holes is equal to the number of the girders (3) spanned by the surface net, the positions of the longitudinal positioning holes (1) on the surface net are consistent with the positions of the girders (3), and the distance between the adjacent steel bars on the two sides of the longitudinal positioning holes (1) is adaptive to the width of the girders (3) where the longitudinal positioning holes are located.
2. The variable-spacing welded mesh for the hogging moment bars of the cast-in-place floor as claimed in claim 1, wherein: the three high beams (3) are respectively a, b and c in width, the longitudinal positioning cavity (1) comprises a cavity I (1-1), a cavity II (1-2) and a cavity III (1-3), and the intervals of the steel bars on the two sides of the cavity I (1-1), the cavity II (1-2) and the cavity III (1-3) are respectively a, b and c; the longitudinal steel bars of the surface net are welded at the lower ends of the transverse steel bars, and the longitudinal positioning hollow holes (1) are clamped with the upper ends of the joists (3).
3. The variable-spacing welded mesh for the hogging moment bars of the cast-in-place floor as claimed in claim 2, wherein: still be equipped with horizontal low beam (4) on the vertical direction of joists (3), leave horizontal location cavity (2) on the face net, its quantity equals with low beam (4) quantity that the face net stridees across, and the position of horizontal location cavity (2) on the face net is unanimous with the position of low beam (4), and the interval between the adjacent reinforcing bar of horizontal location cavity (2) both sides is unanimous with the width of its place low beam (4).
4. The variable-spacing welded mesh for the hogging moment bars of the cast-in-place floor as claimed in claim 3, wherein: the width of the low beam (4) is d, the distance between the reinforcing steel bars on the two sides of the transverse positioning cavity (2) is d, the longitudinal reinforcing steel bars of the surface net are welded at the lower ends of the transverse reinforcing steel bars, the longitudinal reinforcing steel bars are positioned above the low beam (4), and the transverse positioning cavity (2) is positioned right above the low beam (4).
5. The variable-spacing welded mesh for the hogging moment bars of the cast-in-place floor as claimed in claim 4, wherein: the distance between adjacent steel bars on two sides of the longitudinal positioning cavity (1) is more than the width of the high beam (3) at the position by a positive integral multiple of 50 mm; the distance between the adjacent steel bars at the two sides of the transverse positioning hollow hole (2) is more than the positive integral multiple of 50mm more than the width of the low beam (4) at the position of the transverse positioning hollow hole.
6. The construction method of the cast-in-place floor hogging moment tendon variable-spacing welded reinforcement net according to any one of claims 1 to 5, comprising the following steps:
1) planning the length, width, lap joint mode and lap joint position of the surface net according to a design drawing, and planning a positioning cavity on the surface net according to the position and size of the beam to enable the positioning cavity to be consistent with the beam;
2) making a surface net arrangement planning drawing, and dividing the scheme into subareas according to construction section division and a construction plan of a construction unit;
3) manufacturing a specification table of each surface net, arranging a first reinforcing steel bar at a position which is 50mm away from the edge of the beam and is not more than 1/2 of reinforcing steel bar distance, and symmetrically starting the 1 st reinforcing steel bars at the two sides of the beam;
4) the manufacturing department strictly produces according to the specification table, makes the label mark, and strictly stores and delivers goods according to the partition and the sequence of the scheme;
5) during field construction, laying each veil to a planning position according to the arrangement planning diagram of the veils, the subareas, the sequence and the label marks; when the pavement is carried out, the positioning holes of the surface net at the high beam are clamped to the upper end of the high beam, the positioning holes of the surface net at the low beam are aligned to be right above the low beam, and the lap joint is firmly bound by binding wires;
6) and after the acceptance is qualified, concrete is poured.
7. The construction method of the cast-in-place floor hogging moment tendon variable-spacing welded steel mesh according to claim 6, characterized in that: and in the step 3), the starting position of the reinforcing steel bars is adjusted to ensure that the reinforcing steel bars at the longitudinal joints and the transverse joints of all the surface nets are aligned and contacted with the joints of the adjacent surface nets respectively.
8. The construction method of the cast-in-place floor hogging moment tendon variable-spacing welded steel mesh according to claim 6, characterized in that: and in the step 5), the steel bar joints of the adjacent surface nets are aligned and contacted during paving.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011342071.1A CN112411883A (en) | 2020-11-26 | 2020-11-26 | Cast-in-place floor hogging moment rib variable-spacing steel bar welding net and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011342071.1A CN112411883A (en) | 2020-11-26 | 2020-11-26 | Cast-in-place floor hogging moment rib variable-spacing steel bar welding net and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586366A (en) * | 2008-05-21 | 2009-11-25 | 万科企业股份有限公司 | Connecting structure and construction method of precast concrete plates and beams, and building comprising same |
| CN203080802U (en) * | 2013-01-31 | 2013-07-24 | 浙江勤业建工集团有限公司 | Reinforcing steel bar welded mesh |
| CN110625786A (en) * | 2019-09-02 | 2019-12-31 | 吉林建筑大学 | Concrete slab construction method based on steel bar welding net and cement pressure plate |
| CN111305437A (en) * | 2019-12-23 | 2020-06-19 | 浙江省建筑设计研究院 | Beam-slab connection structure of prefabricated concrete structure and construction method thereof |
-
2020
- 2020-11-26 CN CN202011342071.1A patent/CN112411883A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586366A (en) * | 2008-05-21 | 2009-11-25 | 万科企业股份有限公司 | Connecting structure and construction method of precast concrete plates and beams, and building comprising same |
| CN203080802U (en) * | 2013-01-31 | 2013-07-24 | 浙江勤业建工集团有限公司 | Reinforcing steel bar welded mesh |
| CN110625786A (en) * | 2019-09-02 | 2019-12-31 | 吉林建筑大学 | Concrete slab construction method based on steel bar welding net and cement pressure plate |
| CN111305437A (en) * | 2019-12-23 | 2020-06-19 | 浙江省建筑设计研究院 | Beam-slab connection structure of prefabricated concrete structure and construction method thereof |
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Application publication date: 20210226 |