CN204139412U - A kind of cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate - Google Patents
A kind of cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate Download PDFInfo
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- CN204139412U CN204139412U CN201420582048.3U CN201420582048U CN204139412U CN 204139412 U CN204139412 U CN 204139412U CN 201420582048 U CN201420582048 U CN 201420582048U CN 204139412 U CN204139412 U CN 204139412U
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Abstract
The utility model discloses a kind of cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate, comprise upper and lower two layers of mesh trellis cage of reinforcement, and the some spherical hollow body be placed between upper and lower two layers of mesh trellis cage of reinforcement or near-spherical hollow body, fill damping material in this spherical hollow body or near-spherical hollow body.When sound wave runs into the cover plate of the utility model structure, sound wave enters damping material, and damping material can effectively be eliminated back wave and reach, thus makes this concrete building cover plate have good sound-absorbing effect.
Description
Technical field
The utility model relates to the reinforced concrete floor with sound-absorbing and sound insulation function.
Background technology
For meeting the needs of highrise building and long span building structure, rising a kind of employing hollow steel bar concrete building cover plate at present, using rigid hollow filler to be embedded in building floor structure, form hollow-core construction.The hollow structural part formed, does not affect integrally-built bearing capacity, alleviates construction weight simultaneously, improves the applicability of monolithic architecture.The pre-buried thing of this type of hollow-core construction, mainly based on tubulose and box like, and functional design is single.
Tubular completion thing hollow floor cover plate compares with traditional building floor structure, and during identical clear height, floor height can reduce, and template construction is simple, pipeline arrangement convenience, saves material, reduces costs, while alleviating deadweight, have good heat insulation effect.But tubular, hollow plate fails to form two-way uniform stressed, and soundproof effect is not good.
The thin-wall box body structure that tubular foundation grows up, as upgrading products, it is advantageous that filling rate is large, reinforcement ratio is low, and can save more reinforcing bar and concrete, cost obviously reduces.Current casing mainly contains two kinds of types of service: the first is that thin-wall box body is placed in two-layer reinforcing bar centre down onboard, and girt strip is I shape section.The second is that casing is placed directly on gauze wire cloth, or does not lay steel fabric sheet, and casing is directly shelved in template at template upper berth one deck anticracking gauze wire cloth, and girt strip is T-shaped section, only two-way placement one deck reinforcing bar above casing.Usually there is concreting leakiness in the first casing, after form removal, the empty phenomenon of concrete casting occurs on underfloor surface.The second casing is equal to disposable formwork, and during concreting, concrete slurry, by squeezing into into lower box gap, combines with gauze wire cloth, thus forms plate effects, but easily produces large gap between girt strip and casing, affects perception.Thin-wall box body is except having common quality defects such as causing casting and compacting of concrete leakiness, and also because its deadweight is comparatively large, when constructing, handling, carrying, lifting etc. are all inconvenient.
Summary of the invention
Goal of the invention: for above-mentioned prior art, proposes a kind of cast-in-situ reinforced concrete slab with sound-absorbing and soundproof effect.
Technical scheme: a kind of cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate, comprises upper and lower two layers of mesh trellis cage of reinforcement, and is placed in the some spherical hollow body between described upper and lower two layers of mesh trellis cage of reinforcement, fills damping material in described spherical hollow body.
Further, the central axis of described spherical hollow body overlaps with the grid node place plumb line of upper wire trellis cage of reinforcement.
Further, the peak of described upper wire trellis cage of reinforcement and spherical hollow body is tangent.
Further, be interconnected by pipeline between described spherical hollow body.
Further, the cumulative volume of described some spherical hollow bodies accounts for the 20%-50% of cast-in-situ steel reinforced concrete sound-absorbing hollow building cover plate bulk.
A kind of cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate, comprises upper and lower two layers of mesh trellis cage of reinforcement, and is placed in the some near-spherical hollow bodies between described upper and lower two layers of mesh trellis cage of reinforcement; Wherein, described near-spherical hollow body is by after a spherical hollow body of planar interception, and gained volume is more than the part of 1/2nd spherical hollow bodies, and the cross section of described near-spherical hollow body forms circular open; Described circular open is positioned at the grid central authorities of lower net trellis cage of reinforcement, and described circular open flushes with the soffit of cast-in-situ reinforced concrete hollow floor plate.
Further, the central axis of described near-spherical hollow body overlaps with the grid node place plumb line of upper wire trellis cage of reinforcement.
Described upper wire trellis cage of reinforcement and near-spherical hollow body peak tangent.
Further, be interconnected by pipeline between described near-spherical hollow body.
Further, the cumulative volume of described some near-spherical hollow bodies accounts for the 20%-50% of cast-in-situ steel reinforced concrete sound-absorbing hollow building cover plate bulk.
Beneficial effect: for solving the bad shortcoming of prior art hollow core reinforced concrete floor plate soundproof effect, increasing the sound-absorbing design of floor, proposing two kinds of cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plates.
Structure one: some spherical hollow bodies are set between upper and lower two layers of mesh trellis cage of reinforcement, are filled with damping material in spherical hollow body.The spherical hollow body being filled with damping material is utilized to substitute hollow section in conventional hollow reinforced concrete floor plate or body structure, when sound wave runs into the cover plate of this structure, sound wave enters damping material after penetrating lower-layer concrete, damping material can effectively be eliminated back wave and reach, thus makes this concrete building cover plate have good sound-absorbing effect.
When the central axis of spherical hollow body overlaps with the grid node place plumb line of upper wire trellis cage of reinforcement, without the need to adopting fixture to prevent spherical hollow body floating when building, thus this kind of structure can have good anti-floating effect.
Adopt chondritic, make structure stress more even, unstressed centrostigma; Be interconnected by pipeline between spherical hollow body, each spheroid is connected into a slice entirety by the pipeline of connection, the cellular cavity configuration of overall formation, and cavity increases low frequency absorption function; The sound absorbed can carry out spreading, propagating between orbicule, thus increases assimilation effect to sound, is formed and weakens effect to the better absorption of the building generation sound and consumption.
The cumulative volume of some spherical hollow bodies accounts for the 20%-50% of cast-in-situ steel reinforced concrete sound-absorbing hollow building cover plate bulk, and with spherical hollow body fill concrete plate, make its forming unit hollow out skeleton system, holding structure stress, alleviates deadweight.When tradition adopts light-wall pipe to construct as filler, growth bar shaped is arranged, the section summit, upper end of light-wall pipe is in line with concrete and is connected, and under load action, power is linearly propagated; And in the utility model, adopt chondritic, spheroid is single individuality, the peak of upper wire trellis cage of reinforcement and spherical hollow body is tangent, spheroid upper end profile top and concrete are only point cantact, thus spherical hollow body and reinforcing bar are not produced directly contact, and be interconnected by pipeline between spherical hollow body, I-shaped cross-section single one by one can be formed viewed from entirety, mechanical property is strong, compares with light-wall pipe cast-in-situ hollow floor plate the bidirectional stress achieved truly.Meanwhile, chondritic makes concrete and ball in construction easily build vibration compacting, avoids affecting reinforcing bar and concretely bonds effect, effectively preventing the emergence and development in later stage crack; And be interconnected the trend of the pipelines such as water power pipe, fire-fighting without any restriction by pipeline between spherical hollow body.
Structure two: two layers of mesh trellis cage of reinforcement is placed in some described near-spherical hollow bodies up and down; The circular open of near-spherical hollow body is positioned at the grid central authorities of lower net trellis cage of reinforcement, and after concreting, circular open flushes with the soffit of cast-in-situ reinforced concrete hollow floor plate.When adopting the floor structure of this kind of structure, according to the actual requirements, damping material can be filled in near-spherical hollow body; In addition, compared to the first structure, lacked one deck concrete structure between sound insulation materials and external sound wave, the damping material that sound wave can be easier to be filled absorbs, and after avoiding sound wave first to run into layer of concrete, acoustic reflection occurs and weakens sound-absorbing effect.
Accompanying drawing explanation
Fig. 1 is the top plane structure chart of embodiment 1, embodiment 2 structure;
Fig. 2 is the sectional drawing of top plane structure chart along A-A of embodiment 1 structure;
Fig. 3 is the single spherical hollow body top view of embodiment 1, embodiment 2 structure;
Fig. 4 is the sectional drawing of single spherical hollow body top view along A-A of embodiment 1 structure;
Fig. 5 is the single spherical hollow body upward view of embodiment 1 structure;
Fig. 6 is plane structure chart local, the top Fang great Tu of embodiment 1, embodiment 2 structure;
Fig. 7 is the sectional drawing of single spherical hollow body top view along A-A of embodiment 2 structure;
Fig. 8 is the single spherical hollow body upward view of embodiment 2 structure;
Fig. 9 is the baseplane structure chart of embodiment 2, embodiment 3 structure;
Figure 10 is the sectional drawing of top plane structure chart along A-A of embodiment 2 structure;
Figure 11 is the top plane structure chart of embodiment 3 structure.
Detailed description of the invention
Below in conjunction with accompanying drawing the utility model done and further explain.
Embodiment 1: as shown in Figure 1, a kind of cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate, main body is by upper and lower two layers of mesh trellis cage of reinforcement, and the some spherical hollow body be placed between upper and lower two layers of mesh trellis cage of reinforcement is formed.The central axis of spherical hollow body overlaps with the grid node place plumb line of upper wire trellis cage of reinforcement.As shown in Figure 2, the peak of upper wire trellis cage of reinforcement and spherical hollow body is tangent, and fills damping material in spherical hollow body.As shown in Fig. 3, Fig. 4, Fig. 5, be circumferentially uniformly distributed two public rods 1 and two mortises 2 successively in the level of each spherical hollow body, public rod 1 and mortise 2 can mate and be fastenedly connected.As shown in Figure 6, be fastenedly connected by public rod and mortise between adjacent spherical hollow body, between spherical hollow body, form connecting pipe.The cumulative volume of some spherical hollow bodies accounts for the 20%-50% of cast-in-situ steel reinforced concrete sound-absorbing hollow building cover plate bulk.
Wherein, spherical hollow body adopts the manufacture craft such as polythene material blowing or injection moulding shaping, and public rod, mortise and spherical hollow body are integral type structure.The volume size of spherical hollow body designs according to the design of steel grid in structure and filling rate requirement.The damping material of filling in spherical hollow body is Bath sound-absorbing foam.
Embodiment 2: as shown in Figure 1, a kind of cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate, primarily of upper and lower two layers of mesh trellis cage of reinforcement, and the some near-spherical hollow bodies be placed between upper and lower two layers of mesh trellis cage of reinforcement are formed.Shown in as shown in Fig. 3, Fig. 7, Fig. 8, near-spherical hollow body is by after a spherical hollow body of planar interception, and gained volume is more than the part of 1/2nd spherical hollow bodies, and the cross section of this near-spherical hollow body forms circular open.Circumferentially be uniformly distributed two public rods 1 and two mortises 2 successively in the level of each spherical hollow body, public rod 1 and mortise 2 can mate and be fastenedly connected.As shown in Figure 6, the central axis of near-spherical hollow body overlaps with the grid node place plumb line of upper wire trellis cage of reinforcement, is fastenedly connected, forms connecting pipe between spherical hollow body between adjacent spherical hollow body by public rod and mortise.As shown in Figure 9, the circular open of near-spherical hollow body is positioned at the grid central authorities of lower net trellis cage of reinforcement.As shown in Figure 10, upper wire trellis cage of reinforcement and near-spherical hollow body peak tangent, the circular open of near-spherical hollow body flushes with the soffit of cast-in-situ reinforced concrete hollow floor plate.The cumulative volume of some near-spherical hollow bodies accounts for the 20%-50% of cast-in-situ steel reinforced concrete sound-absorbing hollow building cover plate bulk.
Wherein, near-spherical hollow body adopts the manufacture craft such as polythene material blowing or injection moulding shaping, and public rod, mortise and near-spherical hollow body are integral type structure.The damping material of filling in near-spherical hollow body can be how empty sound absorption material, fiber, granular material etc.Sound wave makes acoustic energy produce relaxation phenomenon for sound absorption in media transmission process.When the sound wave penetrating material internal is propagated in gap and aperture, air movement can produce viscous and rubbing action, simultaneously in aperture air by compression time temperature raise, time sparse, temperature reduces, and the heat-conduction effect of material, thus making acoustic energy be transformed into heat energy consumed gradually, the transformation of this energy is irreversible, and therefore material just creates sound absorption.
When preparing the cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate of this structure, the circular open of near-spherical hollow body is closely connected in template, the template that template can make of wooden or plastics etc., or adopts prefabricated, half precast plate entirely.Circular open due to near-spherical hollow body is closely connected in template, and the peak of near-spherical hollow body and upper wire trellis cage of reinforcement tangent, thus it is inner to avoid the concrete when injecting concrete to enter near-spherical hollow body.
Embodiment 3: as shown in figure 11, a kind of cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate, primarily of upper and lower two layers of mesh trellis cage of reinforcement, and the some near-spherical hollow bodies be placed between upper and lower two layers of mesh trellis cage of reinforcement are formed.Shown in as shown in Fig. 3, Fig. 7, Fig. 8, near-spherical hollow body is by after a spherical hollow body of planar interception, and gained volume is more than the part of 1/2nd spherical hollow bodies, and the cross section of this near-spherical hollow body forms circular open.Circumferentially be uniformly distributed two public rods 1 and two mortises 2 successively in the level of each spherical hollow body, public rod 1 and mortise 2 can mate and be fastenedly connected.As shown in Figure 11 and Fig. 9, the size of mesh opening of upper and lower two layers of mesh trellis cage of reinforcement is identical and be symmetrical arranged, concrete slab plane is divided into equal-sized square net by cage of reinforcement, near-spherical hollow body is arranged on the centre of grid, the circular open of near-spherical hollow body is positioned at the grid central authorities of lower net trellis cage of reinforcement, and the circular open of near-spherical hollow body flushes with the soffit of cast-in-situ reinforced concrete hollow floor plate.Be fastenedly connected by public rod and mortise between adjacent spherical hollow body, between spherical hollow body, form connecting pipe.The cumulative volume of some near-spherical hollow bodies accounts for the 20%-50% of cast-in-situ steel reinforced concrete sound-absorbing hollow building cover plate bulk.
Wherein, near-spherical hollow body adopts the manufacture craft such as polythene material blowing or injection moulding shaping, and public rod, mortise and near-spherical hollow body are integral type structure.When preparing the cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate of this structure, the circular open of near-spherical hollow body is closely connected in template, the template that template can make of wooden or plastics etc., or adopts prefabricated, half precast plate entirely.Circular open due to near-spherical hollow body is closely connected in template, and the peak of near-spherical hollow body does not contact with upper wire trellis cage of reinforcement, thus the near-spherical hollow body in this structure does not have good anti-floating effect, and concrete may enter near-spherical hollow body inside when injecting concrete.Therefore, need to be fastened in template with securing member by near-spherical hollow body when cast-in-place, make the circular open of near-spherical hollow body closely connected in template, securing member can remove recovery after structural concrete reaches some strength, uses in order to next time.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate, is characterized in that: comprise upper and lower two layers of mesh trellis cage of reinforcement, and is placed in the some spherical hollow body between described upper and lower two layers of mesh trellis cage of reinforcement, fills damping material in described spherical hollow body.
2. a kind of cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate according to claim 1, is characterized in that: the central axis of described spherical hollow body overlaps with the grid node place plumb line of upper wire trellis cage of reinforcement.
3. a kind of cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate according to claim 2, is characterized in that: the peak of described upper wire trellis cage of reinforcement and spherical hollow body is tangent.
4. a kind of cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate according to claim 1 or 2 or 3, be is characterized in that: be interconnected by pipeline between described spherical hollow body.
5. a kind of cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate according to claim 4, is characterized in that: the cumulative volume of described some spherical hollow bodies accounts for the 20%-50% of cast-in-situ steel reinforced concrete sound-absorbing hollow building cover plate bulk.
6. a cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate, is characterized in that: comprise upper and lower two layers of mesh trellis cage of reinforcement, and is placed in the some near-spherical hollow bodies between described upper and lower two layers of mesh trellis cage of reinforcement; Wherein, described near-spherical hollow body is by after a spherical hollow body of planar interception, and gained volume is more than the part of 1/2nd spherical hollow bodies, and the cross section of described near-spherical hollow body forms circular open; Described circular open is positioned at the grid central authorities of lower net trellis cage of reinforcement, and described circular open flushes with the soffit of cast-in-situ reinforced concrete hollow floor plate.
7. a kind of cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate according to claim 6, is characterized in that: the central axis of described near-spherical hollow body overlaps with the grid node place plumb line of upper wire trellis cage of reinforcement.
8. a kind of cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate according to claim 7, is characterized in that: described upper wire trellis cage of reinforcement and near-spherical hollow body peak tangent.
9. a kind of cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate according to claim 6 or 7 or 8, be is characterized in that: be interconnected by pipeline between described near-spherical hollow body.
10. a kind of cast-in-situ steel reinforced concrete sound-absorbing hollow floor cover plate according to claim 9, is characterized in that: the cumulative volume of described some near-spherical hollow bodies accounts for the 20%-50% of cast-in-situ steel reinforced concrete sound-absorbing hollow building cover plate bulk.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314219A (en) * | 2014-10-09 | 2015-01-28 | 江苏瑞永建设工程技术有限公司 | Cast-in-place reinforced concrete sound absorbing hollow floor cover plate |
| CN104652674A (en) * | 2015-02-16 | 2015-05-27 | 江苏瑞永建设工程技术有限公司 | Cast-in-situ reinforced concrete floor with crashing sound absorption function |
| CN104674996A (en) * | 2015-03-17 | 2015-06-03 | 江苏瑞永建设工程技术有限公司 | Reinforced concrete sound-absorption hollow floor slab |
| CN105821999A (en) * | 2016-03-23 | 2016-08-03 | 吉林建筑大学 | Design method for cast-in-place concrete bidirectional hollow floor |
-
2014
- 2014-10-09 CN CN201420582048.3U patent/CN204139412U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314219A (en) * | 2014-10-09 | 2015-01-28 | 江苏瑞永建设工程技术有限公司 | Cast-in-place reinforced concrete sound absorbing hollow floor cover plate |
| CN104652674A (en) * | 2015-02-16 | 2015-05-27 | 江苏瑞永建设工程技术有限公司 | Cast-in-situ reinforced concrete floor with crashing sound absorption function |
| CN104674996A (en) * | 2015-03-17 | 2015-06-03 | 江苏瑞永建设工程技术有限公司 | Reinforced concrete sound-absorption hollow floor slab |
| CN105821999A (en) * | 2016-03-23 | 2016-08-03 | 吉林建筑大学 | Design method for cast-in-place concrete bidirectional hollow floor |
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