CN1148651A - Inverted flat beam building roof structure of composite prestressed concrete frame - Google Patents
Inverted flat beam building roof structure of composite prestressed concrete frame Download PDFInfo
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- CN1148651A CN1148651A CN 95117053 CN95117053A CN1148651A CN 1148651 A CN1148651 A CN 1148651A CN 95117053 CN95117053 CN 95117053 CN 95117053 A CN95117053 A CN 95117053A CN 1148651 A CN1148651 A CN 1148651A
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Abstract
The present invention relates to a composite prestressed concrete frame inverted flat beam floor structure. It is characterized by that the prestressed concrete inverted flat beam is set in floor slab, the lower surface of the floor is smooth, the section of the inverted flat beam is wide and flat, and the between of inverted flat beams and concrete lower surface layer of the floor slab and reinforcing fabric of the lower surface layer are connected into a groove body with upward rabbet, in the interior of said groove body a sound-proof heat-insulating layer is placed, and the interior of said inverted flat beam and the floor concrete structure layer respectively are equipped with prestressed reinforcement and the concrete upper layer surface is made of water-proof fine stone concrete matched with wire fabric.
Description
The present invention relates to a kind of building cover structure of building.
Existing building cover structure has prestressing force sheet-pile superstructure, steel bar concrete sheet-pile superstructure, reinforced concrete beam board superstructure, and the reinforced concrete beam cross section is positive T shape, and notch is exposed at below the floor down, and the Laminate construction thickness of superstructure is bigger, and cost is higher, the sound-insulating poor performance.
The purpose of this invention is to provide a kind of inverted flat beam building roof structure of composite prestressed concrete frame, reduce the building cover structure layer thickness, improve superstructure sound-insulating performance, reduce the cost of building, under the certain situation of room headway, increase the building number of plies.
Technical scheme of the present invention is such:
Inverted flat beam building roof structure of composite prestressed concrete frame, comprise beam and floor, floor comprises surface layer under the concrete, the concrete deck, reinforced mesh, the concrete upper layer, it is characterized in that: the prestress concrete invert-Chen-Shuibian beam of frame on post lain in the floor, be located on the height of floor concrete deck, make the superstructure soffit smooth, the cross section of invert-Chen-Shuibian beam is wide and flat, between the invert-Chen-Shuibian beam with the concrete of floor under surface layer and following surface layer reinforced mesh be linked to be cell body, notch up, the sound-insulating layer is arranged in the cell body, be furnished with two-way parabola shaped no-cohesive prestressed reinforcement in the invert-Chen-Shuibian beam and in the floor concrete deck, the concrete upper layer is to mix the surface layer steel fabric sheet with compensate for shrinkage microdilatancy waterproof fine-stone concrete.
The material of sound-insulating layer can be expanded perlite, haydite, cement expanded perlite mortar, cinder, foamed plastics, vermiculite.
Cell body can be separated into little cell body with concrete material or light concrete material, in fill out the sound-insulating prefabricated section.
The cell body bottom surface is variable cross-section or uniform section.
Upper and lower surface layer reinforced mesh and stirrup and no-cohesive prestressed reinforcement link together.
Can punch as required on the floor.
During construction, the invert-Chen-Shuibian beam can exceed the border of pillar, the large tracts of land continuous pouring at the scene of whole building cover structure.This building cover structure sees on appearance and modeling, and the ceiling of superstructure bottom surface is flat (sleeper cap or do not have cap), therefore, can be during finishing without furred ceiling, under the constant situation of room headway, superstructure thickness reduces, can increase the highrise building number of plies, increase usable floor area.Its benefit reduces and the steel expense used much larger than invert-Chen-Shuibian beam section effective height more, invert-Chen-Shuibian girder system inverted T-shaped cross section, and the positive T section of its stressed ratio is more favourable at the bearing place.
This structural system is that Vierendeel girder and heat preservation and soundproof layer are made in the building cover structure layer, the rise and the key position that make full use of the prestressing without bondn curve muscle in the Laminate construction thickness have bonding muscle or shaped steel to mix the effect that is provided with, the thickness of building cover structure layer is reduced, cheap, the sound-insulating performance improvement.And utilize simultaneously multi-functional microdilatancy concrete early stage set up from stress and fast post-tensioned prestressing match and the characteristic of the composite prestressed that forms, make this structure crack resistance good, can cut off flexibly, punch flexibly.Be applicable to the various sound insulations that both needed, require residential building, hospital, the comprehensive building of depressed structure layer thickness again ... or the like.This structure can be combined into high level or superelevation layer (combination shaped steel concrete, the steel pipe concrete pillar) agent structure that is applicable to earthquake zone and coastal violent typhoon area with the cylindrical shell or the shear wall of lateral resisting, also can adapt to the instructions for use of local large space in the castle.Its span and colum network size are suitable for 5～24m, girder span height ratio L/h=24～32 (plate 40～55).This invention is applied to existing structural system, and its investment can save 15～25%, and promptly every square metre of building area can be saved 50～100 yuan.
Below in conjunction with accompanying drawing and example the present invention is described in detail:
Fig. 1 is the structural representation of the embodiment of the invention 1, is suitable for 6～12m post net.
Fig. 2 is the structural representation of the embodiment of the invention 2, is suitable for 8～24m post net.
Fig. 3 is the vertical view of Fig. 1 or Fig. 2.
Inverted flat beam building roof structure of composite prestressed concrete frame comprises beam and floor, and floor comprises surface layer under the concrete, concrete deck, reinforced mesh, concrete upper layer.The prestress concrete invert-Chen-Shuibian beam 2 of frame on post 1 lies in the floor 3, be located on the height of floor concrete deck, make the superstructure soffit smooth, the cross section of invert-Chen-Shuibian beam 2 is wide and flat, between the invert-Chen-Shuibian beam 2 with the concrete of floor under surface layer 4 and following surface layer reinforced mesh 5 be linked to be cell body, notch up, sound-insulating layer 7 is arranged in the cell body, be furnished with two-way parabola shaped posttension no-cohesive prestressed reinforcement 6 in the invert-Chen-Shuibian beam and in the floor concrete deck, concrete upper layer 8 is to mix surface layer steel fabric sheet 9 with compensate for shrinkage microdilatancy waterproof fine-stone concrete.Cell body bottom surface 12 is variable cross-section or uniform section.Upper and lower surface layer reinforced mesh and stirrup and no-cohesive prestressed reinforcement link together.Can punch 13 on the above-mentioned floor.For bearing bigger impact shear, can establish hidden bracket 14 in post 1 and floor 3 junctions.
The material of sound-insulating layer can be light weight aggregate concretes such as expanded perlite that hydrophobic powder surface layer is arranged, haydite, cement expanded perlite waterproofing mortar, cinder, foamed plastics, vermiculite, as embodiment 1.Cell body can be separated into sulculus body 10 with concrete material or light concrete material, in fill out sound-insulating prefabricated section 11, as embodiment 2.
Claims (6)
1, a kind of inverted flat beam building roof structure of composite prestressed concrete frame, comprise beam and floor, floor comprises surface layer under the concrete, the concrete deck, reinforced mesh, the concrete upper layer, it is characterized in that: the prestress concrete invert-Chen-Shuibian beam of frame on post lain in the floor, be located on the height of floor concrete deck, make the superstructure soffit smooth, the cross section of invert-Chen-Shuibian beam is wide and flat, between the invert-Chen-Shuibian beam with the concrete of floor under surface layer and following surface layer reinforced mesh be linked to be cell body, notch up, the sound-insulating layer is arranged in the cell body, be furnished with two-way parabola shaped no-cohesive prestressed reinforcement in the invert-Chen-Shuibian beam and in the floor concrete deck, the concrete upper layer is to mix the surface layer steel fabric sheet with compensate for shrinkage microdilatancy waterproof fine-stone concrete.
2, inverted flat beam building roof structure of composite prestressed concrete frame according to claim 1, the material that it is characterized in that described sound-insulating layer can be expanded perlite, haydite, cement expanded perlite mortar, cinder, foamed plastics, vermiculite.
3, inverted flat beam building roof structure of composite prestressed concrete frame according to claim 1 is characterized in that described cell body can be separated into little cell body with concrete material or light concrete material, in fill out the sound-insulating prefabricated section.
4, inverted flat beam building roof structure of composite prestressed concrete frame according to claim 1 is characterized in that described cell body bottom surface is variable cross-section or uniform section.
5, inverted flat beam building roof structure of composite prestressed concrete frame according to claim 1 is characterized in that described upper and lower surface layer reinforced mesh and stirrup and no-cohesive prestressed reinforcement link together.
6, inverted flat beam building roof structure of composite prestressed concrete frame according to claim 1 is characterized in that can punching on the described floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95117053 CN1148651A (en) | 1995-10-20 | 1995-10-20 | Inverted flat beam building roof structure of composite prestressed concrete frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95117053 CN1148651A (en) | 1995-10-20 | 1995-10-20 | Inverted flat beam building roof structure of composite prestressed concrete frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1148651A true CN1148651A (en) | 1997-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95117053 Pending CN1148651A (en) | 1995-10-20 | 1995-10-20 | Inverted flat beam building roof structure of composite prestressed concrete frame |
Country Status (1)
| Country | Link |
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| CN (1) | CN1148651A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351474C (en) * | 2005-11-24 | 2007-11-28 | 徐金声 | Combined prestressing force concrete sandwich board and its construction method |
| CN102261150A (en) * | 2011-04-26 | 2011-11-30 | 哈尔滨工业大学 | Floor adopting integration technology for energy-saving buildings in cold regions |
| CN105971177A (en) * | 2016-05-15 | 2016-09-28 | 长沙新气象自动化技术有限公司 | Rotary supporting type automatic alignment lifting floor |
-
1995
- 1995-10-20 CN CN 95117053 patent/CN1148651A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351474C (en) * | 2005-11-24 | 2007-11-28 | 徐金声 | Combined prestressing force concrete sandwich board and its construction method |
| CN102261150A (en) * | 2011-04-26 | 2011-11-30 | 哈尔滨工业大学 | Floor adopting integration technology for energy-saving buildings in cold regions |
| CN105971177A (en) * | 2016-05-15 | 2016-09-28 | 长沙新气象自动化技术有限公司 | Rotary supporting type automatic alignment lifting floor |
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