CN204163284U - Cracking resistance reinforced mesh - Google Patents

Cracking resistance reinforced mesh Download PDF

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Publication number
CN204163284U
CN204163284U CN201420568052.4U CN201420568052U CN204163284U CN 204163284 U CN204163284 U CN 204163284U CN 201420568052 U CN201420568052 U CN 201420568052U CN 204163284 U CN204163284 U CN 204163284U
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cracking resistance
reinforced mesh
resistance reinforced
concrete floor
reinforcement
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CN201420568052.4U
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洪建华
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SHANGHAI CONSTRUCTION REAL ESTATE CO Ltd
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SHANGHAI CONSTRUCTION REAL ESTATE CO Ltd
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Abstract

The utility model discloses a kind of cracking resistance reinforced mesh, belong to the technical field of floor slab structure construction, solve the problem that traditional radial steel reinforcement can not prevent cast-in-place concrete floor external corner from ftractureing well.Cracking resistance reinforced mesh is isosceles right triangle, and the laminating of cracking resistance reinforced mesh is fixed on the plate face reinforcing bar in concrete floor corner, and cracking resistance reinforced mesh is the net structure of some crossing transverse reinforcements and longitudinal reinforcement composition.Owing to defining net structure, make cracking resistance reinforced mesh structural entity stressed, thus the anti-strain capacity of cast-in-place concrete floor can be improved, to reach the object preventing concrete floor from ftractureing.Meanwhile, cracking resistance reinforced mesh of the present utility model is isosceles right triangle structure, and stability under loading is stronger, has better anti-strain capacity, thus has the effect better preventing cast-in-place concrete floor from ftractureing.And cracking resistance reinforced mesh of the present utility model can be produced in batches, convenient construction, saves cost.

Description

Cracking resistance reinforced mesh
Technical field
The utility model belongs to the technical field of floor slab structure construction, particularly relates to a kind of cracking resistance reinforced mesh.
Background technology
At present, there is the problem of crack and random cracks in cast-in-place concrete floor mostly, and even crack may extend to concrete floor soffit, causes concrete floor seepage.It is subjective aspect that the reason in cast-in-place concrete floor generation crack mainly contains two: one, such as: concrete curing is not in place, form removal is too early, formwork bracing system rigidity inadequate, concrete surface laitance is blocked up, and surface strength is inadequate; Concrete water-cement ratio is large, cement consumption is large, concrete temperature is high and grating is bad, and the large many factors that waits of mud content all can cause concrete to produce crack.The crack problem that subjective aspect produces can be solved by reinforcement execution control and quality control.Two is objective aspects: the building in building course and after being delivered for use all sedimentation can occur.Due to the otherness of geological conditions and the difference of building structure, can cause differential settlement of buildings, thus make to produce additional potential stress without constraint skin external corner floor, stress is concentrated and concrete floor can be caused to produce crack.
In order to solve because of differential settlement of buildings, asking of the concrete floor cracking that stress is concentrated and caused provide a kind of outside the building wall in Fig. 1 and set up radial steel reinforcement without the concrete floor upper surface at constraint external corner place, prevent the conventional method that concrete floor ftractures.But, owing to usually adopting hot-rolled reinforced bar as radial steel reinforcement, there are the following problems in meeting: one, the stress-strain diagram of radial steel reinforcement has obvious yield point b, has crossed b point radial steel reinforcement and has started creeping, strain value increases fast, and concrete floor produces crack and expands; Two, radial steel reinforcement and concrete adhesion stress (bond stress) are only radial steel reinforcement quantity sum, and without being mutually related globality between radial steel reinforcement; Three, radial steel reinforcement needs on-the-spot processing and colligation, expends the engineering time; Four, radial steel reinforcement colligation is at the upper surface of concrete floor steel bar, and external corner place reinforcing bar is intensive, is unfavorable for concreting.Therefore, how to provide one not only can prevent cast-in-place concrete floor from ftractureing but also cost-effective cracking resistance reinforcing bar, become the technical problem that those skilled in the art are urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide a kind of cracking resistance reinforced mesh, to solve the problem that traditional radial steel reinforcement can not prevent cast-in-place concrete floor external corner from ftractureing well.
To achieve these goals, the technical solution of the utility model is:
Cracking resistance reinforced mesh, described cracking resistance reinforced mesh is isosceles right triangle, described cracking resistance reinforced mesh laminating is fixed on the plate face reinforcing bar in concrete floor corner, and described cracking resistance reinforced mesh is the net structure of some crossing transverse reinforcements and longitudinal reinforcement composition.
Further, described transverse reinforcement and described longitudinal reinforcement are hand-drawn wire reinforcing bar, and the diameter of described hand-drawn wire reinforcing bar is 4 ㎜ ~ 6 ㎜.
Further, described transverse reinforcement is connected with described longitudinal reinforcement spot welding.
Further, described transverse reinforcement is parallel respectively with described longitudinal reinforcement and equidistant.
Further, the spacing between adjacent described transverse reinforcement, between adjacent described longitudinal reinforcement is 50mm ~ 100mm.
Further, the right angle length of side a of described cracking resistance reinforced mesh and described concrete floor plate across the pass between L are: 1/4L ﹤ a ﹤ 1/2L.
Further, the plate face reinforcing bar binding in described cracking resistance reinforced mesh and described concrete floor corner is fixed.
The utility model compared with prior art, tool has the following advantages and beneficial effect: cracking resistance reinforced mesh of the present utility model, for isosceles right triangle, its laminating is fixed on the plate face reinforcing bar in concrete floor corner, and cracking resistance reinforced mesh is the net structure of some crossing transverse reinforcements and longitudinal reinforcement composition.Owing to defining net structure, make cracking resistance reinforced mesh structural entity stressed, thus the anti-strain capacity of cast-in-place concrete floor can be improved, to reach the object preventing concrete floor corner from ftractureing.According to leg-of-mutton stability principle, cracking resistance reinforced mesh stability under loading of the present utility model is stronger, makes wall corner point concentrated stress disperse and decay, has better anti-strain capacity, thus have the effect better preventing cast-in-place concrete floor from ftractureing.In addition, cracking resistance reinforced mesh shape of the present utility model is fixed, and meets factory's batch production requirements, convenient construction, thus shortens the duration, reduce cost.
Accompanying drawing explanation
Cracking resistance reinforced mesh of the present utility model is provided by following embodiment and accompanying drawing.
Fig. 1 is the structural representation of radial steel reinforcement mesh sheet in prior art;
Fig. 2 is the structural representation of the utility model one embodiment cracking resistance reinforced mesh.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, cracking resistance reinforced mesh of the present utility model is described in further detail.According to the following describes and claims, advantage of the present utility model and feature will be clearer.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, aid illustration the utility model embodiment lucidly.
The structure of the utility model cracking resistance reinforced mesh is described in detail below in conjunction with Fig. 2.
As shown in Figure 2, cracking resistance reinforced mesh 1 is isosceles right triangle, and cracking resistance reinforced mesh 1 laminating is fixed on the plate face reinforcing bar in concrete floor 2 corner, and cracking resistance reinforced mesh 1 is the net structure of some crossing transverse reinforcements and longitudinal reinforcement composition.
Specifically, continue with reference to figure 1, concrete floor 2 is fixedly connected with exterior wall 3, overall stressed.The present embodiment cracking resistance reinforced mesh 1 laminating be fixed on the plate face reinforcing bar in concrete floor 2 corner, the network that cracking resistance reinforced mesh 1 is made up of some crossing transverse reinforcements and longitudinal reinforcement, owing to defining net structure, cracking resistance reinforced mesh 1 structure is made also to be overall stressed, thus the anti-strain capacity in concrete floor 2 corner can be improved, to reach the object preventing concrete floor corner from ftractureing.Meanwhile, consider the uniformity that cracking resistance reinforced mesh 1 is stressed, and save material, cracking resistance reinforced mesh 1 is designed to isosceles right triangle structure.According to leg-of-mutton stability principle, cracking resistance reinforced mesh 1 stability under loading of the present utility model is stronger, has better anti-strain capacity, thus has the effect better preventing cast-in-place concrete floor from ftractureing.
Continue with reference to figure 1, consider in prior art and adopt hot-rolled reinforced bar making radial steel reinforcement there are the following problems in the mode preventing concrete floor corner and ftracture: one is that adhesion stress between radial steel reinforcement and concrete is not strong; Two be above the yield point of reinforcing bar after because the creeping of reinforcing bar causes Cracks On Concrete Floors on the contrary.For foregoing problems, the transverse reinforcement in the present embodiment and longitudinal reinforcement are hand-drawn wire reinforcing bar, and the diameter of hand-drawn wire reinforcing bar is 4 ㎜ ~ 6 ㎜.Compared with the radial steel reinforcement made with traditional hot-rolled reinforced bar, adopt the tensile strength of the cracking resistance reinforced mesh 1 of hand-drawn wire reinforcement fabrication to have and improve greatly.Meanwhile, adopt the plasticity of the cracking resistance reinforced mesh 1 of hand-drawn wire reinforcement fabrication also well below the plasticity of the radiation muscle of traditional hot-rolled reinforced bar making.Adopt the cracking resistance reinforced mesh 1 of hand-drawn wire reinforcement fabrication can produce good adhesion stress with cast-in-place concrete floor, and the two can form an entirety, thus play the effect preventing cast-in-place concrete floor corner from ftractureing.
Especially, transverse reinforcement and longitudinal reinforcement intersect composition net structure, and transverse reinforcement is connected with longitudinal reinforcement spot welding.Intersected and the transverse reinforcement of spot welding connection and longitudinal reinforcement composition net structure by some, cracking resistance reinforced mesh of the present utility model has better stability under loading, thus has the better effect preventing cast-in-place concrete floor from ftractureing.
Continue with reference to figure 1, transverse reinforcement is parallel respectively with longitudinal reinforcement and equidistant.Spacing between two adjacent transverse reinforcements, between adjacent two longitudinal reinforcements is 50mm ~ 100mm.Preferred distance is 75mm, can prevent like this because spacing is too little, and can not ensure that in concrete, stone is normal through mesh, thus ensures concretely normally to build; Can prevent again because spacing causes too greatly the anti-strain capacity of cracking resistance reinforced mesh 1 to decline, thus meet the function of cracking resistance reinforced mesh 1.Therefore, adopt the cracking resistance reinforced mesh 1 of aforementioned intervals stressed more even, bear the stress of formed objects, transverse reinforcement and the longitudinal reinforcement of lesser amt can be adopted, thus when not affecting effect of prestressed, saving material, having saved cost.
Continue with reference to figure 1, in order to improve effect of prestressed further, cracking resistance reinforced mesh 1 and cast-in-place concrete floor corner is made to fit closely, when laying cracking resistance reinforced mesh 1, the right-angle side of cracking resistance reinforced mesh 1 and limit, cast-in-place concrete floor corner are fitted and arranges, and by tied silk colligation, cracking resistance reinforced mesh 1 is fixed on the top of the plate face reinforcing bar in concrete floor corner, during to ensure that poured in place concrete is constructed, cracking resistance reinforced mesh 1 is not shifted.
Further, continue with reference to figure 1, in order to reach good resistance to stress localization effects, save material, the right angle length of side a of cracking resistance reinforced mesh 1 of the present utility model and concrete floor plate across the pass between (i.e. concrete floor width) L are simultaneously: 1/4L ﹤ a ﹤ 1/2L.
Especially, the processing and fabricating of cracking resistance reinforced mesh of the present utility model, can meet factory's batch production requirements.Plant produced adds man-hour, can process according to square, then is divided into two from diagonal by a foursquare cracking resistance reinforced mesh, thus forms two leg-of-mutton cracking resistance reinforced mesh.
In sum, cracking resistance reinforced mesh provided by the utility model is isosceles right triangle, and it is fixed on the plate face reinforcing bar in concrete floor corner, and cracking resistance reinforced mesh is the net structure of some crossing transverse reinforcements and longitudinal reinforcement composition.Owing to defining net structure, make cracking resistance reinforced mesh structural entity stressed, thus the anti-strain capacity of cast-in-place concrete floor can be improved, to reach the object preventing concrete floor from ftractureing.According to leg-of-mutton stability principle, cracking resistance reinforced mesh stability under loading of the present utility model is stronger, makes wall corner point concentrated stress disperse and decay, has better anti-strain capacity, thus have the effect better preventing cast-in-place concrete floor from ftractureing.And by adopting hand-drawn wire reinforcement fabrication reinforcing bar cracking resistance mesh sheet, cracking resistance reinforced mesh and cast-in-place concrete floor can be made to produce good adhesion stress, and like this, the two entirety is stressed, thus has the effect better preventing cast-in-place concrete floor from ftractureing.In addition, manufacture craft is simple, can realize factory's batch production, make as required, convenient construction, save the engineering time.
Foregoing description of the present utility model is only the description to the utility model preferred embodiment, any restriction not to the utility model scope.Any change that those skilled in the art does according to above-mentioned disclosure, modification, all belong to the protection domain of claim.

Claims (7)

1. cracking resistance reinforced mesh, it is characterized in that, described cracking resistance reinforced mesh is isosceles right triangle, and described cracking resistance reinforced mesh laminating is fixed on the plate face reinforcing bar in concrete floor corner, and described cracking resistance reinforced mesh is the net structure of some crossing transverse reinforcements and longitudinal reinforcement composition.
2. cracking resistance reinforced mesh as claimed in claim 1, it is characterized in that, described transverse reinforcement and described longitudinal reinforcement are hand-drawn wire reinforcing bar, and the diameter of described hand-drawn wire reinforcing bar is 4 ㎜ ~ 6 ㎜.
3. cracking resistance reinforced mesh as claimed in claim 1 or 2, it is characterized in that, described transverse reinforcement is connected with described longitudinal reinforcement spot welding.
4. cracking resistance reinforced mesh as claimed in claim 3, is characterized in that, described transverse reinforcement is parallel respectively with described longitudinal reinforcement and equidistant.
5. cracking resistance reinforced mesh as claimed in claim 4, is characterized in that, the spacing between adjacent described transverse reinforcement, between adjacent described longitudinal reinforcement is 50mm ~ 100mm.
6. cracking resistance reinforced mesh as claimed in claim 5, it is characterized in that, right angle length of side a and the described concrete floor plate of described cracking resistance reinforced mesh across the pass between L are: 1/4L ﹤ a ﹤ 1/2L.
7. cracking resistance reinforced mesh as claimed in claim 6, it is characterized in that, the plate face reinforcing bar binding in described cracking resistance reinforced mesh and described concrete floor corner is fixed.
CN201420568052.4U 2014-09-29 2014-09-29 Cracking resistance reinforced mesh Active CN204163284U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105298023A (en) * 2015-10-20 2016-02-03 重庆路投科技有限公司 Two-way honeycomb horn-shaped concrete anti-cracking reinforced metal screen
CN108204067A (en) * 2018-03-13 2018-06-26 安徽虎邦建设有限公司 A kind of compartment floor for sophisticated manufacturing plants room
CN108842558A (en) * 2018-07-04 2018-11-20 北京城建北方集团有限公司 Heavy concrete road surface can be had enough to meet the need
CN109680581A (en) * 2018-12-25 2019-04-26 中交一公局第一工程有限公司 The structure and its construction method on ultrahigh-temperature strong wind climatological region modified pitch top layer road surface

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105298023A (en) * 2015-10-20 2016-02-03 重庆路投科技有限公司 Two-way honeycomb horn-shaped concrete anti-cracking reinforced metal screen
CN108204067A (en) * 2018-03-13 2018-06-26 安徽虎邦建设有限公司 A kind of compartment floor for sophisticated manufacturing plants room
CN108842558A (en) * 2018-07-04 2018-11-20 北京城建北方集团有限公司 Heavy concrete road surface can be had enough to meet the need
CN109680581A (en) * 2018-12-25 2019-04-26 中交一公局第一工程有限公司 The structure and its construction method on ultrahigh-temperature strong wind climatological region modified pitch top layer road surface

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