CN204059391U - A kind of steel work and the pre-buried syndeton in basis - Google Patents
A kind of steel work and the pre-buried syndeton in basis Download PDFInfo
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- CN204059391U CN204059391U CN201420409980.6U CN201420409980U CN204059391U CN 204059391 U CN204059391 U CN 204059391U CN 201420409980 U CN201420409980 U CN 201420409980U CN 204059391 U CN204059391 U CN 204059391U
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Abstract
The utility model relates to the pre-buried syndeton of a kind of steel work and basis, it is characterized in that described pre-buried syndeton is formed by prefabricated units and sole plate monobloc cast; Prefabricated units are the steel concrete contiguous block that upper surface studs with junction steel plate, and steel concrete contiguous block surrounding is provided with the reserved steel bar be connected with reinforcing bar in basis; Be provided with multiple steel structure connection screw rod running through prefabricated units within the scope of junction steel plate, the bottom of connecting screw rod extends in basis.Syndeton described in the utility model effectively can improve steel work and the bonding strength on basis, overcomes traditional preburied component lower concrete and builds leakiness, concrete and steel plate deformed are inconsistent cause bottom the problem such as to come to nothing, there is good technical economic benefit.
Description
Technical field
The utility model relates to the pre-buried syndeton of a kind of steel work and basis and construction method, particularly pre-buried prefabricated units in a kind of sole plate, the pre-buried syndeton that steel work and basis is connected indirectly by connecting bolt on prefabricated units.Belong to construction and installation field, be applicable to steel work and be connected engineering with concrete foundation, be particularly useful in the Structural Engineering of the medium-term and long-term vibrations of steel superstructure use procedure.
Background technology
Have the plurality of advantages such as high-strength light, plasticity good toughness, speed of application are fast, good looking appearance due to steel building, especially its transmission force property is reliable, and the application in the last few years in design of building structures is more and more extensive.The supporting capacity of steel work and applicability depend on the bonding strength of steel work and substructure to a great extent, but, because steel transmission kinetic energy is respond well, the mechanical shock that superstructure produces is weakened less when being passed to infrastructure, and unfavorable condition occurs easily to cause steel work and concrete structure junction steel concrete destroys, connected node comes off etc.Therefore, the switching performance that steel work and concrete connected node play is the principal element determining structural stability and bearing capacity.Steel work is generally connected by suspension column with steel concrete, and in the prior art, suspension column type of attachment has embedded column base and exposed suspension column usually.
Reserve rim of a cup when embedded column base is generally bottom concrete foundation construction, during Construction of Steel Structure, extension or suspension column are inserted in rim of a cup, then recharge concrete to rim of a cup, compacting of vibrating.Existing a kind of steel work is connected new technology with concrete embedded type: steel work plug-in type suspension column (CN 203034473 U), this technical characteristic is on the basis that traditional rim of a cup inserts slip casting fill concrete again, be provided with peg, bar dowel or column base plate in steel column one end as fixture, strengthen the connection between slip casting and concrete.In addition, this technology is applied to steel column quantity when being more than 2 or 2 suspension columns, is inserted in the rim of a cup of the building foundation coordinated with steel column, steel column place above rim of a cup is provided with waling stripe, waling stripe two ends are connected with steel column respectively, contact to strengthen between contiguous steel column, reduce suspension column eccentric force.This technology beneficial effect is, the processing of this steel work plug-in type suspension column is easy, and steel using amount is few, saves cost, and construction is simple, and coupling stiffness is large.But, by in direct for steel work suspension column Transducers Embedded in Concrete, the transmission of suspension column internal force is the moment of flexure that the concrete lateral pressure by contacting with steel produces, balance suspension column bending and shearing, along with steel work is at the frequent microseismic activity of operational phase, may occur that rim of a cup ftractures, the situations such as concrete and steel kind design depart from gradually, even if be provided with fixture at suspension column, avoid the problem that steel column pulls out, but after concrete cracking, suspension column internal force balance effect declines, the movable gap of suspension column is inevitably caused to increase, the overall vibration amplitude of steel work promotes gradually, finally affect structural stability.
Exposed suspension column is generally connect steel work and basis by steel built-in fitting in the mode of bolt or welding, and steel built-in fitting adopts pre-embedded bolt, pre-embedded steel slab and its combining form usually.It is directly be welded on by steel work suspension column on the embedded board in embedding concrete foundation that pre-embedded steel slab connects; It is that it is fastening that the screw rod exposed reserves screw through column root-plate by after leveling under steel structure column sole that pre-embedded bolt connects.Adopt pre-embedded bolt to be connected with steel work base plate, under base plate, ground needs smooth, and because of long-term vibration, ground is easy to wear, and single pre-embedded steel slab mostly is the form of being permanently fixed, and is unfavorable for that steel work adjusts.Bolt and the pre-buried form of steel plate combination, be connected firmly with basis, by regulating nut adjustment steel plate height, and discrete steady quality, and can prefabricated, assembling fittings in advance.For a kind of steel structure assembled embedded part and construction method (CN 102061746 B) thereof, described combination built-in fitting is that each double threaded screw two ends adopt a pair nut (packing nut and binding nut) fixing steel plate (top template or base plate template) respectively, make composite member reach form needed for site operation through adjustment, build in concrete finally by embedded iron location.This combination built-in fitting is by adjusting the top die plate height as backing plate flexibly, reduce steel superstructure alignment error, by regulating upper and lower part template spacing to make combination built-in fitting avoid concrete reinforcing steel as much as possible, totally can improve built-in fitting and burying the Efficiency and accuracy with Steel Structure Installation underground.But, in combination built-in fitting, easily occur bottom pre-embedded steel slab that in concreting leakiness, concrete, bubble floating deposits in problems such as lower surface of steel plates, and in hardening of concrete and superstructure use procedure, due to concrete and steel plate deformed inconsistent, capital causes coming to nothing bottom pre-embedded steel slab, affects structure power transmission effect and declines, even lost efficacy.
In sum, steel work and basic type of attachment various, the advantages such as embedded column base syndeton has that rigidity is large, steel using amount is few, but resistance to plucking poor effect, and under long-term vibration environment, suspension column surrounding concrete is easy to crack; Exposed suspension column over-borrowing helps built-in fitting, especially combines built-in fitting, can be used for the fixing of multi-form steel work suspension column and leveling, easy to use and flexible, efficient, and have higher anti seismic efficiency, but its deficiency shows that pre-embedded steel slab is combined with bottom concrete closely, affects structure power transmission.Given this, based on the actual needs of current engineering, urgently invent a kind of using steel plate built-in fitting combined with bolt at present, steel work that base concrete does not directly contact with steel plate when building and foundation connection structure, after work, junction steel plate is connected closely with concrete, and has higher anti-seismic performance.
Summary of the invention
The purpose of this utility model is to provide on a kind of basis improving combination built-in fitting form, can ensure built-in fitting and basic bonding strength, can improve again steel superstructure anti-seismic performance the pre-buried syndeton of steel work and basis and construction method.
For realizing above-mentioned technical purpose, the utility model have employed following technical scheme:
A kind of steel work and the pre-buried syndeton in basis, is characterized in that described pre-buried syndeton is formed by prefabricated units and sole plate monobloc cast; Prefabricated units are the steel concrete contiguous block that upper surface studs with junction steel plate, and steel concrete contiguous block surrounding is provided with the reserved steel bar be connected with reinforcing bar in basis; Be provided with multiple steel structure connection screw rod running through prefabricated units within the scope of junction steel plate, the bottom of connecting screw rod extends in basis.
Reserved steel bar can be reserved development length by main body reinforcing bar in prefabricated units and pass prefabricated units both sides and form, or arrangement of reinforcement laterally runs through monoblock prefabricated units and forms separately.
Connecting screw rod adopts full thread stud, and be reserved with the length connected needed for steel work on junction steel plate top, prefabricated units soffit arranges Level tune nut, extends to connecting screw rod end in basis and is provided with one deck setscrew nut.
Strengthened by pre-stressed bolt between the steel concrete contiguous block of prefabricated units and junction steel plate and connect, prefabricated units are reserved with vibrate hole and the steam vent of up/down perforation, steel concrete contiguous block soffit and side, all in teeth groove shape, are welded with bottom junction steel plate and connect short muscle.
Pre-stressed bolt is arranged in junction steel plate corner and middle part (if middle part pre-stressed bolt affects steel structure connection, can not arrange), bolt is imbedded in steel concrete contiguous block, and tightening junction steel plate top nut can to steel concrete contiguous block and junction steel plate Shi Hanzhang.
Connect short muscle and be evenly arranged in junction steel plate soffit, insert in steel concrete contiguous block, and be connected with the main muscle of steel concrete contiguous block.
The construction method of the pre-buried syndeton of described steel work and basis, mainly comprises the following steps:
1) junction steel plate process: according to designing requirement cutting steel plate, and offer hole of vibrating, steam vent and all kinds of bolt hole thereon respectively, be welded to connect short muscle in its side;
2) prefabricated units make and prepare: be positioned over by junction steel plate and make on table top, be with short muscle towards upper placement, install template, assembling reinforcement concrete contiguous block reinforcing bar, and pre-buried plastic pipe is used as steam vent and hole of vibrating;
3) prefabricated units are built: after pre-stressed bolt and connecting screw rod location, concreting (junction steel plate is in below) in mould, maintenance after suitably vibrating;
4) form removal deburring: reach after design strength requirement until concrete, stripping, finishing steam vent and aperture, the hole concrete that vibrates, prevent plug-hole, and repair steel concrete contiguous block tooth channeled surfaces;
5) prefabricated units are installed: by the Level tune nut on adjustment extension, connecting screw rod bottom and setscrew nut height, ensure prefabricated units horizontal positioned, and in sole plate, reinforcing bar is accurately located;
6) water underpin: build sole plate concrete, by hole of vibrating reserved on prefabricated units, by closely knit for concrete vibrating under prefabricated units, bottom bubble is discharged by steam vent, ensures that linking new and old concrete is tight;
7) round-off work: after sole plate concrete curing terminates, adopts the higher concrete casting steam vent of strength grade and hole of vibrating, wipes junction steel plate surface attachments away, regulate pre-stressed bolt nut.
In above-mentioned construction method, prefabricated units adopt inversion to build, namely junction steel plate under, steel concrete linkage section has been built at an upper portion thereof, and before concrete initial set, upper surface (soffit when prefabricated units come into operation) batten extruding, forms teeth groove shape.
Precast-concrete form clear width top establishes nail to have beam-like block of wood, makes the prefabricated units surface of building formation form teeth groove shape, and according to reserved steel bar extended position reserving hole.
the utility model has following feature and beneficial effect:
(1) the utility model applies the Novel prefabricated component that combined by steel concrete contiguous block and junction steel plate as built-in fitting, bury underground in concrete foundation, installation effectiveness is high, and base concrete is built and is only contacted with there being teeth groove shape appearance steel concrete contiguous block, compare concreting under the steel plate of surfacing, the former combining form intensity is higher, and is same material, is out of shape basically identical.
(2) during structure construction described in the utility model, prefabricated units position in basis is limited by setscrew nut, adjustment Level tune nut regulates prefabricated units absolute altitude and level angle, connecting screw rod is finally utilized to be connected with arrangement of reinforcement in basis, and be provided with reserved steel bar in prefabricated units surrounding, ensure that prefabricated units are buried underground accurately, firmly.
(3) prefabricated units have been reserved the steam vent of through entirety and hole of vibrating, under making prefabricated units, base concrete is more closely knit, can not make to form air blanketing between new-old concrete because of bubble alluvial, ensure that built-in fitting and basic bonding strength.
(4) Novel prefabricated component that adopts of the utility model can factory or vacant lot, job site prefabricated, operation is independent, can accelerating construction progress; Structure manufacture adopts inversion to build, and be positioned over bottom by junction steel plate, concrete is built above it, due to Action of Gravity Field, concrete presses down automatically, and wherein bubble is upwards freely discharged, concrete and steel plate contact surface do not interspace, and prefabrication phase just avoids steel plate and comes to nothing.
(5) strengthen connecting by being connected short muscle between junction steel plate with steel concrete contiguous block in prefabricated units, and be provided with pre-stressed bolt, both increases bonding strength, even if the later stage causes steel plate and concrete loose contact along with steel work use procedure shakes repeatedly, by adjustment pre-stressed bolt, Shi Hanzhang again, adjustment steel plate and concrete bonding strength.
In a word, the utility model gives full play to that combination installation of embedded parts is quick, absolute altitude can be in harmonious proportion the features such as anti-seismic performance is superior, also avoid pre-embedded steel slab in conventional combination built-in fitting contact with cast-in-situ concrete bad, easily the problem such as to come to nothing, adopt corresponding measure, existing early stage steel concrete contiguous block and the guarantee of basic bonding strength, there is again the reinforcement after later stage steel plate and concrete possibility Joint failure, there is higher technical economic benefit.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the pre-buried syndeton of a kind of steel work of the utility model and basis;
Fig. 2 is prefabricated units structural representation described in the utility model;
Fig. 3 is prefabricated units upper surface schematic diagram described in the utility model;
Wherein: 1-basis, 2-steel concrete contiguous block, 3-junction steel plate, 4-pre-stressed bolt, 5-connect short muscle, 6-connecting screw rod, 7-steam vent, 8-Level tune nut, 9-setscrew nut, 10-vibrate hole, 11-reserved steel bar.
Detailed description of the invention
Concrete mix, pouring construction technical requirements in present embodiment, steel cutting, welding procedure technical requirements and reinforcing bar binding, formwork erection technical requirements are all not repeated, and emphasis sets forth embodiment of the present utility model.
Fig. 1 is the schematic diagram of the pre-buried syndeton of a kind of steel work of the utility model and basis; Fig. 2 is prefabricated units structural representation described in the utility model; Fig. 3 is prefabricated units upper surface schematic diagram described in the utility model.With reference to shown in Fig. 1 ~ 3, a kind of steel work mainly comprises with the pre-buried syndeton in basis: basic 1, steel concrete contiguous block 2, junction steel plate 3, pre-stressed bolt 4, be connected short muscle 5, connecting screw rod 6 and reserved steel bar 11 etc.
The present embodiment makes prefabricated units for example with 600 × 800 × 20mm junction steel plate 3,1000 × 1200 × 150mm steel concrete contiguous block 2.
Prefabricated units are except steel concrete contiguous block 2 and junction steel plate 3, and parameter is as follows: pre-stressed bolt 4 adopts M16 hex bolts, length 100mm, amount to 5 groups; Connect short muscle 5 and adopt diameter 10mm indented bars, length 30mm, weld layout at equal intervals in junction steel plate 3 times 100 × 100mm; Connecting screw rod 6 adopts M42 full thread stud, the long 350mm of bar; Steam vent 7 diameter 10mm, runs through prefabricated units, and each steam vent 7 spacing is not more than 500mm; Level tune nut 8 and setscrew nut 9 adopt the hex bolts matched with connecting screw rod 6; Vibrate hole 10 diameter 80mm, runs through prefabricated units, and hole 10 distance of center circle that vibrates, from junction steel plate 3 center 300mm, is symmetrically arranged along long limit; Reserved steel bar 11 adopts diameter 12mm indented bars, and length is respectively 1300mm, 1100mm, and namely two ends are stretched out prefabricated units length in reserve and are 150mm, and spacing 200mm is embedded in steel concrete linkage section 2.
After completing prefabricated units making according to above-mentioned specification before foundation construction, carry out basis 1 and construct.Peaceful bottom surface, installs formwork for placing, colligation baseplate reinforcing bar.Be positioned on distributing bar by connecting screw rod 6 by prefabricated units, connecting screw rod 6 stretches out 150mm from prefabricated units bottom, upper surface length in reserve 50mm.On adjustment connecting screw rod 6, setscrew nut 9 is to design junction, adopts the mode of colligation or spot welding to be connected with basic 1 structure reinforcing bars.After having located, adjust prefabricated units levelness and absolute altitude by Level tune nut 8, reserved steel bar 11 constructs muscle with basis 1 as far as possible and is connected, and finally determines the pre-buried position of prefabricated units.
After completing prefabricated units installation, carry out basic 1 concreting, except routine is vibrated, concrete vibrating under built-in fitting is carried out by hole 10 that prefabricated units vibrate, in concrete, bubble is discharged from steam vent 7, makes bottom concrete more closely knit, bonds with firm with prefabricated units.Vibrate after terminating, adopt more higher leveled concrete casting shutoff steam vent 7 and hole 10 of vibrating, and process steel concrete linkage section 2 and basic 1 concrete intersection.
After basic 1 concrete reaches design strength, the foreign material such as the concrete that cleaning junction steel plate 3 upper surface may remain, connect steel superstructure by connecting screw rod 6 section of reserving, complete connected node construction.
In later stage use procedure, if due to structure long-term vibration, cause junction steel plate 2 slightly loosening, by fastening pre-stressed bolt 4 nut, again promote junction steel plate 3 and steel concrete contiguous block 2 bonding strength.
The construction method of the pre-buried syndeton of steel work and basis, mainly comprises the following steps:
1) junction steel plate process: according to designing requirement cutting steel plate, and offer hole 10 of vibrating, steam vent 7 and all kinds of bolt hole thereon respectively, be welded to connect short muscle 5 in its side;
2) structure manufacture prepares: be positioned over by junction steel plate 3 and make on table top, and band connects short muscle 5 towards upper placement, installs template, assembling reinforcement concrete contiguous block 2 reinforcing bar, and pre-buried plastic pipe is used as steam vent 7 and hole 10 of vibrating;
3) prefabricated units are built: after pre-stressed bolt 5 and connecting screw rod 6 being located, concreting (junction steel plate 2 is in below) in mould, maintenance after suitably vibrating;
4) form removal deburring: reach after design strength requirement until concrete, stripping, finishing steam vent 7 and aperture, hole 10 concrete that vibrates, prevent plug-hole, wired reinforced concrete contiguous block 2 tooth channeled surfaces;
5) prefabricated units are installed: by the Level tune nut 8 on adjustment extension, connecting screw rod 6 bottom and setscrew nut 9 height, ensure prefabricated units horizontal positioned, and in basis 1, reinforcing bar is accurately located;
6) water underpin: water underpin 1 concrete, by hole 10 of vibrating reserved on prefabricated units, by closely knit for concrete vibrating under prefabricated units, bubble is discharged by steam vent 7, ensures that linking new and old concrete is tight;
7) round-off work: after basic 1 concrete curing terminates, adopts concrete casting steam vent 7 and hole 10 of vibrating that strength grade is higher, wipes junction steel plate surface attachments away, connect steel superstructure, suitably regulate pre-stressed bolt 5 nut.
Claims (6)
1. the pre-buried syndeton of steel work and basis, is characterized in that described pre-buried syndeton is formed by prefabricated units and sole plate monobloc cast; Prefabricated units are the steel concrete contiguous block that upper surface studs with junction steel plate, and steel concrete contiguous block surrounding is provided with the reserved steel bar be connected with reinforcing bar in basis; Be provided with multiple steel structure connection screw rod running through prefabricated units within the scope of junction steel plate, the bottom of connecting screw rod extends in basis.
2. the pre-buried syndeton of steel work according to claim 1 and basis, is characterized in that described reserved steel bar can be reserved development length by main body reinforcing bar in prefabricated units and pass prefabricated units both sides and form, or arrangement of reinforcement laterally runs through monoblock prefabricated units and forms separately.
3. the pre-buried syndeton of steel work according to claim 1 and basis, it is characterized in that described connecting screw rod adopts full thread stud, the length connected needed for steel work is reserved with on junction steel plate top, prefabricated units soffit arranges Level tune nut, extends to connecting screw rod end in basis and is provided with one deck setscrew nut.
4. the pre-buried syndeton of steel work according to claim 1 and basis, it is characterized in that being strengthened by pre-stressed bolt between the steel concrete contiguous block of described prefabricated units and junction steel plate connecting, prefabricated units are reserved with vibrate hole and the steam vent of up/down perforation, steel concrete contiguous block soffit and side, all in teeth groove shape, are welded with bottom junction steel plate and connect short muscle.
5. the pre-buried syndeton of steel work according to claim 4 and basis, it is characterized in that described pre-stressed bolt is arranged in junction steel plate corner and middle part, bolt is imbedded in steel concrete contiguous block, and tightening junction steel plate top nut can to steel concrete contiguous block and junction steel plate Shi Hanzhang.
6. the pre-buried syndeton of steel work according to claim 4 and basis, is characterized in that the short muscle of described connection is evenly arranged in junction steel plate soffit, inserts in steel concrete contiguous block, and is connected with the main muscle of steel concrete contiguous block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409980.6U CN204059391U (en) | 2014-07-23 | 2014-07-23 | A kind of steel work and the pre-buried syndeton in basis |
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| CN201420409980.6U CN204059391U (en) | 2014-07-23 | 2014-07-23 | A kind of steel work and the pre-buried syndeton in basis |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234070A (en) * | 2014-07-23 | 2014-12-24 | 冠鲁建设股份有限公司 | Steel structure and foundation pre-burying connection structure and construction method |
| CN108756004A (en) * | 2018-06-22 | 2018-11-06 | 大连理工大学 | A kind of exposed steel kind design of double surrender mechanism and its construction method |
| CN111305251A (en) * | 2020-03-03 | 2020-06-19 | 湖北工业大学 | Steel construction and pre-buried connection structure of concrete |
| CN112832284A (en) * | 2021-02-25 | 2021-05-25 | 唐山港口实业集团有限公司 | Container heavy container yard corner foundation and construction method thereof |
| CN115324097A (en) * | 2022-07-25 | 2022-11-11 | 中国港湾工程有限责任公司 | Island type breakwater navigation light pile foundation and maintenance channel combined structure |
-
2014
- 2014-07-23 CN CN201420409980.6U patent/CN204059391U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234070A (en) * | 2014-07-23 | 2014-12-24 | 冠鲁建设股份有限公司 | Steel structure and foundation pre-burying connection structure and construction method |
| CN104234070B (en) * | 2014-07-23 | 2016-08-17 | 杭州江润科技有限公司 | A kind of steel construction and the pre-buried attachment structure in basis and construction method |
| CN108756004A (en) * | 2018-06-22 | 2018-11-06 | 大连理工大学 | A kind of exposed steel kind design of double surrender mechanism and its construction method |
| CN111305251A (en) * | 2020-03-03 | 2020-06-19 | 湖北工业大学 | Steel construction and pre-buried connection structure of concrete |
| CN112832284A (en) * | 2021-02-25 | 2021-05-25 | 唐山港口实业集团有限公司 | Container heavy container yard corner foundation and construction method thereof |
| CN115324097A (en) * | 2022-07-25 | 2022-11-11 | 中国港湾工程有限责任公司 | Island type breakwater navigation light pile foundation and maintenance channel combined structure |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20170723 |