CN103572875A - Steel box hidden beam composite floor system - Google Patents
Steel box hidden beam composite floor system Download PDFInfo
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- CN103572875A CN103572875A CN201310543164.4A CN201310543164A CN103572875A CN 103572875 A CN103572875 A CN 103572875A CN 201310543164 A CN201310543164 A CN 201310543164A CN 103572875 A CN103572875 A CN 103572875A
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- steel case
- steel
- dark beam
- reinforced concrete
- concrete floor
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 90
- 239000010959 steel Substances 0.000 title claims abstract description 90
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 23
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 8
- 238000005553 drilling Methods 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 7
- 230000005611 electricity Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000004567 concrete Substances 0.000 description 7
- 230000002787 reinforcement Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 244000080575 Oxalis tetraphylla Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention discloses a steel box hidden beam composite floor system which comprises a reinforced concrete floor, steel bars, steel box hidden beams, girders and profiled steel sheets, wherein the girders and steel columns constitute a frame, and the girders are buried in separating walls; the steel bars are configured in the reinforced concrete floor, and the profiled steel sheets are arranged below the reinforced concrete floor; the steel box hidden beams are perpendicularly spliced on the girders, and top flanges and webs of the steel box hidden beams are embedded into the reinforced concrete floor and welded with intersection positions of the steel bars in the reinforced concrete floor; and one side of a bottom flange of each steel box hidden beam located on the side span is extended out, two sides of the bottom flange of each steel box hidden beam located on the intermediate span are extended out, and valleys of the profiled steel sheets are connected with the bottom flanges of the steel box hidden beams. According to the steel box hidden beam composite floor system, the stability of the steel box hidden beams is improved, the self-weight is reduced, the height of structure layers is reduced, the indoor net clearance is increased, the conversion thickness of the floor is reduced, the span of the floor system is increased, the connection is firm, water and electricity pipelines can be placed in steel pipes, a framework is not required during construction, and the construction is convenient.
Description
Technical field
The present invention relates to a kind of new builing structure technical field, be specifically related to the dark beam composite floor system of a kind of steel case.
Background technology
In modern commerce office building, need across large bay superstructure, to come flexible partition space greatly.Traditional beam and slab structure, along with span increases, deck-molding and thickness of slab all increase, and have not only reduced floor clear height, and have increased the weight of dead load, increase construction costs.In highrise building, concrete gravity accounts for the 50%-60% of deadweight especially, alleviates superstructure deadweight, and to reducing foundation cost, and increase building height has very large meaning.To this, there is scholar to propose the superstructure forms such as the flat beam precast assemble floor of combination, hidden steel beam flat slab, the novel superstructure of self-bearing type.Regrettably, the superstructure of these forms has a common shortcoming: whole superstructure is heavier, and it is relatively poor to combine the globality of flat beam precast assemble floor, and anti-seismic performance is not good enough; And the steel bar girder procedure of the novel superstructure of self-bearing type is complicated, time-consuming, and the easy spillage of back plate connections.The superstructure of these forms has only solved the indoor problem exposing without beam, and fail effectively to solve, reduces the structure height of large bay superstructure, effectively reduces building floor height, reduces dead load and reduce the key issues such as Civil Cost.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of steel case dark beam composite floor system, the dark beam of steel case is embedded among profiled sheet and reinforced concrete floor, solve dexterously stability, fire prevention and the Anticorrosion of the dark beam of steel, increase interlayer headroom, alleviate dead load, effectively reduce the comprehensive cost of engineering.
The technical solution used in the present invention is: the dark beam composite floor system of a kind of steel case, comprises reinforced concrete floor, reinforcing bar, the dark beam of steel case, girder and profiled sheet; Described girder and steel column form framework, girder is embedded in party wall, in described reinforced concrete floor, dispose reinforcing bar, below reinforced concrete floor, be provided with profiled sheet, the dark beam of described steel case vertically splices on girder, top flange and the web of the dark beam of steel case are embedded in reinforced concrete floor, and intersect part welding with the reinforcing bar in reinforced concrete floor;
The dark lower flange of girder edge of described steel case that is positioned at end bay stretches out on one side, and stretch out on the dark lower flange of girder edge of the steel case both sides that are arranged in span, and the trough of described profiled sheet is connected with the bottom flange of the dark beam of steel case.
As preferably, the dark beam of described steel case comprises square and two kinds of section forms of rectangle.
As preferably, the dark beam of described steel case comprises and punching and the two kinds of web forms that do not punch.
As preferably, the dark beam of described steel case is cold roll forming, hot-roll forming or is welded into the dark beam of shaped steel case.
As preferably, the bottom flange of the trough of described profiled sheet and the dark beam of steel case adopts welding or self-drilling connection.
The dark beam composite floor system of Novel steel case of the present invention is a kind of space structures being jointly comprised of box steel beam, reinforced concrete floor and profiled sheet.It is by being embedded in box steel beam among profiled sheet and reinforced concrete floor, utilize adhesion stress between box steel beam and concrete to realize the acting in conjunction of the two, utilize profiled sheet to be effectively connected with box steel beam, can be using box steel beam as secondary beam, large plate is distinguished and is slit into many platelets district, reduce plate district effective span, thereby reduce thickness of slab.Simultaneously between steel mesh reinforcement and the dark beam of steel, firmly connect and compose reliable support framework, utilize profiled sheet to reduce the thickness of reckoning the actual amount after a discount of superstructure, to reach the object that reduces dead load and reduction engineering comprehensive cost.
Girder in the present invention is embedded in party wall, and according to structural entity, analysis designs.The dark beam of steel case and girder in the present invention can splice.When the dark beam of steel case is positioned at end bay, on one side stretch out its bottom flange; While being arranged in span, stretch out on its both sides, bottom flange, to be connected with profiled sheet.Because the dark beam of steel is embedded among concrete, and with steel mesh reinforcement welding, so its monolithic stability and local stability all can be guaranteed, so by Intensity Design.The trough of the profiled sheet in the present invention (bottom flange) welds or self-drilling connection with the bottom flange of the dark beam of steel case.Profiled sheet should be depending on the different situations design of composite floor or non-composite floor.The steel mesh reinforcement that the reinforcing bar of the above configuration of the crest of the profiled sheet in the present invention (top flange) forms, intersecting part welding with the dark beam of steel, to jointly form reliable support framework.The configuration of reinforcing bar should be looked the different situations of composite floor or non-composite floor and designing and calculating is determined.Near the reinforcing bar of the configuration trough of the profiled sheet in the present invention (bottom flange), by structure requirement configuration.Concrete in the present invention and protective layer thickness thereof etc., determine by the conventional method of Design of Floors.
The dark beam of the present invention adopts box-type section, compares and has following features with i shaped cross section:
1,, due to the dark beam of box-type section, inner hollow, does not reduce superstructure bearing capacity simultaneously, conveniently compared with traversing pipe lines such as flood, electricity, does not need preheating embedding line, reduces construction technology.
2, the dark beam hollow of box-type section, alleviates dead load, reduces construction costs.
3, because secretly beam institute is stressed, be all to be born by dark web.Box-type section is than many one webs in i iron cross section, so the bearing capacity of box-type section is higher, and stability is better.
4, under identical stressing conditions, box-type section is less than the dark web desired height of i shaped steel, can further reduce slab thickness, increases floor clear height.
Beneficial effect: superstructure of the present invention, form of structure is reasonable, and structural span is large, can meet the functional requirement of large bay superstructure, be conducive to the flexible arrangement in room and freely separate, user can reconfigure usage space according to the indoor partition wall of the random dismounting of the wish of oneself, and is convenient to transformation.
The present invention can increase indoor headroom to greatest extent, reduces structure floor height, can increase number of floor levels, also the corresponding expense that reduces space enclosing structure, finishing and pipeline facility under identical depth of building condition.
Girder steel of the present invention wraps in concrete, has greatly improved stability and the anticorrosion fireproof performance of girder steel.
Superstructure of the present invention, owing to firmly connecting and composing reliable support framework between steel mesh reinforcement and the dark beam of steel, and cast-in-situ concrete, so its integral rigidity is large, anti-seismic performance good, shock resistance is strong.
Superstructure of the present invention, does not appear secondary beam, smooth at the bottom of plate, without furred ceiling.
Dark beam hollow in superstructure of the present invention, both can alleviate deadweight, was convenient to again water power, optical cable etc. and did not affect structure stress compared with large traversing pipe line laying.
Superstructure of the present invention, easy construction is quick, greatly shortens construction period, reduces engineering comprehensive cost.
Superstructure of the present invention, has given full play to the stress performance advantage of Steel concrete and has brought significant economic benefit.
Accompanying drawing explanation
Fig. 1 is the top view of the dark beam composite floor system of steel case of the present invention;
Fig. 2 is 1-1 sectional drawing in Fig. 1;
Fig. 3 is 2-2 sectional drawing in Fig. 1.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
As Figure 1-3: the dark beam composite floor system of a kind of steel case, comprises reinforced concrete floor 4, reinforcing bar 3, the dark beam 1 of steel case, girder 5 and profiled sheet 2; Described girder 5 forms framework with steel column, girder 5 is embedded in party wall, in described reinforced concrete floor 4, dispose reinforcing bar 3, reinforced concrete floor 4 is provided with profiled sheet 2 below, the dark beam 1 of described steel case vertically splices on girder 5, top flange and the web of the dark beam 1 of steel case are embedded in reinforced concrete floor 4, and intersect part welding with the reinforcing bar 3 in reinforced concrete floor 4;
Stretch out on one side the dark beam of described steel case 1 bottom flange that is positioned at end bay, and stretch out on the dark beam of steel case 1 both sides, bottom flange that are arranged in span, and the trough of described profiled sheet 2 is connected with the bottom flange of the dark beam 1 of steel case.
The dark beam 1 of described steel case comprises square and two kinds of section forms of rectangle.The dark beam 1 of described steel case comprises and punching and the two kinds of web forms that do not punch.The dark beam 1 of described steel case is for cold roll forming, hot-roll forming or be welded into the dark beam of shaped steel case.The bottom flange of the trough of described profiled sheet 2 and the dark beam 1 of steel case adopts welding or self-drilling connection.
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.In the present embodiment not clear and definite each ingredient all available prior art realized.
Claims (5)
1. the dark beam composite floor system of steel case, is characterized in that: comprise reinforced concrete floor, reinforcing bar, the dark beam of steel case, girder and profiled sheet; Described girder and steel column form framework, girder is embedded in party wall, in described reinforced concrete floor, dispose reinforcing bar, below reinforced concrete floor, be provided with profiled sheet, the dark beam of described steel case vertically splices on girder, top flange and the web of the dark beam of steel case are embedded in reinforced concrete floor, and intersect part welding with the reinforcing bar in reinforced concrete floor;
The dark lower flange of girder edge of described steel case that is positioned at end bay stretches out on one side, and stretch out on the dark lower flange of girder edge of the steel case both sides that are arranged in span, and the trough of described profiled sheet is connected with the bottom flange of the dark beam of steel case.
2. the dark beam composite floor system of a kind of steel case according to claim 1, is characterized in that: the dark beam of described steel case comprises square and two kinds of section forms of rectangle.
3. the dark beam composite floor system of a kind of steel case according to claim 1, is characterized in that: the dark beam of described steel case comprises and punching and the two kinds of web forms that do not punch.
4. the dark beam composite floor system of a kind of steel case according to claim 1, is characterized in that: the dark beam of described steel case is cold roll forming, hot-roll forming or is welded into the dark beam of shaped steel case.
5. the dark beam composite floor system of a kind of steel case according to claim 1, is characterized in that: the bottom flange of the trough of described profiled sheet and the dark beam of steel case adopts welding or self-drilling connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310543164.4A CN103572875A (en) | 2013-11-05 | 2013-11-05 | Steel box hidden beam composite floor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310543164.4A CN103572875A (en) | 2013-11-05 | 2013-11-05 | Steel box hidden beam composite floor system |
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| Publication Number | Publication Date |
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| CN103572875A true CN103572875A (en) | 2014-02-12 |
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| CN201310543164.4A Pending CN103572875A (en) | 2013-11-05 | 2013-11-05 | Steel box hidden beam composite floor system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222629A (en) * | 2018-01-04 | 2018-06-29 | 东南大学 | Explosion-and-knock resistant protecting wall and preparation method thereof |
| CN108374515A (en) * | 2018-01-24 | 2018-08-07 | 长安大学 | A kind of gypsum based self-leveling mortar composite floor system system based on steel-frame beam |
| CN110512784A (en) * | 2019-09-25 | 2019-11-29 | 宁波大学科学技术学院 | A kind of assembled light floor and its construction method |
| CN110512784B (en) * | 2019-09-25 | 2024-05-31 | 宁波大学科学技术学院 | Assembled light floor and construction method thereof |
Citations (5)
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|---|---|---|---|---|
| EP1512803A1 (en) * | 2003-07-31 | 2005-03-09 | Fimurex | Interlocking moulded formwork |
| CN202031215U (en) * | 2010-05-06 | 2011-11-09 | 北京建筑工程学院 | Combined floor of bar-mat reinforcement sheets and profiled steel sheets by adopting spot welding |
| CN202500249U (en) * | 2012-03-07 | 2012-10-24 | 吴祖岭 | Profiled steel sheet composite floor |
| CN202831330U (en) * | 2012-08-16 | 2013-03-27 | 杨众 | Cast-in-situ reinforced concrete slab with grooves |
| CN203569759U (en) * | 2013-11-05 | 2014-04-30 | 南京工业大学 | Steel box hidden beam composite floor system |
-
2013
- 2013-11-05 CN CN201310543164.4A patent/CN103572875A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1512803A1 (en) * | 2003-07-31 | 2005-03-09 | Fimurex | Interlocking moulded formwork |
| CN202031215U (en) * | 2010-05-06 | 2011-11-09 | 北京建筑工程学院 | Combined floor of bar-mat reinforcement sheets and profiled steel sheets by adopting spot welding |
| CN202500249U (en) * | 2012-03-07 | 2012-10-24 | 吴祖岭 | Profiled steel sheet composite floor |
| CN202831330U (en) * | 2012-08-16 | 2013-03-27 | 杨众 | Cast-in-situ reinforced concrete slab with grooves |
| CN203569759U (en) * | 2013-11-05 | 2014-04-30 | 南京工业大学 | Steel box hidden beam composite floor system |
Non-Patent Citations (1)
| Title |
|---|
| 苏明: "钢-混凝土新型暗梁组合楼盖受力性能研究", 《钢-混凝土新型暗梁组合楼盖受力性能研究》, 31 May 2010 (2010-05-31) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222629A (en) * | 2018-01-04 | 2018-06-29 | 东南大学 | Explosion-and-knock resistant protecting wall and preparation method thereof |
| CN108374515A (en) * | 2018-01-24 | 2018-08-07 | 长安大学 | A kind of gypsum based self-leveling mortar composite floor system system based on steel-frame beam |
| CN110512784A (en) * | 2019-09-25 | 2019-11-29 | 宁波大学科学技术学院 | A kind of assembled light floor and its construction method |
| CN110512784B (en) * | 2019-09-25 | 2024-05-31 | 宁波大学科学技术学院 | Assembled light floor and construction method thereof |
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Application publication date: 20140212 |