CN109695315A - A kind of assembled steel tube bank prestressed concrete combination beam and its construction method - Google Patents
A kind of assembled steel tube bank prestressed concrete combination beam and its construction method Download PDFInfo
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- CN109695315A CN109695315A CN201910106746.3A CN201910106746A CN109695315A CN 109695315 A CN109695315 A CN 109695315A CN 201910106746 A CN201910106746 A CN 201910106746A CN 109695315 A CN109695315 A CN 109695315A
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- Prior art keywords
- steel
- combination beam
- pipe bundle
- steel member
- hollow lattice
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
Abstract
The invention discloses a kind of assembled steel tube bank prestressed concrete combination beam and its construction methods.The combination beam by hollow lattice steel pipe bundle and pour coagulation local soil type inside hollow lattice steel pipe bundle at；The hollow lattice steel pipe bundle is welded by 2-4 Pin steel member, form "-" type structure, the lower steel plate of wherein welding shear stud on the inside of lowest level steel member, the upper end opening of top layer's steel member, top layer's steel member and middle layer steel member is provided with perforative through-hole；One Pin of lowest level or the two Pin steel members welded together anchor after applying pretension, discharge pretension after concreting condensation, form assembled steel and restrain prestressed concrete combination beam.The combination beam has both the advantages of steel reinforced concrete structure and prestressed reinforced concrete construction, improves the cracking resistance and non-deformability of combination beam.The construction method is easy to operate, and the construction time is short, and speed of application is fast, and construction efficiency is high, convenient for industrialization fabricated construction.
Description
Technical field
The present invention relates to construction engineering technical field, specifically a kind of assembled steel restrains prestressed concrete combination beam
And its construction method.
Background technique
Industrialized construction way reduces construction site wet construction amount by using prefabricated components, by using prefabricated components
As template to reduce construction site shuttering work amount, so that significant increase construction efficiency, shortens construction period and fund
It circulates the period.Industrial production line production can be used in steel pipe bundle composite structure, and whole process can be a kind of ideal by robot manipulation
Assembled arthitecutral structure form.Simultaneously steel pipe bundle composite structure preferably plays steel high-strength light, concrete rigidity greatly
Advantage avoids poor steel member stability, Brittleness of Concrete and the fast disadvantage of Stiffness Deterioration.It can using steel pipe bundle composite structure
Effectively mitigate dead load, improves structural seismic performance.But existing steel pipe bundle concrete combined structure is mainly used at present
Shear wall structure system, there is also many limitations for this structure.Such as: punch inconvenience on wall, and door and window arrangement is limited, meeting
Increase dead load and construction cost.Therefore unobvious using the advantage of clean steel pipe bundle combinations shear wall structure, it is unfavorable for steel
Pipe bundle combinations structure is in tier building and low land shakes the popularization and application in earthquake intensity region.
Summary of the invention
In view of the deficiencies of the prior art, the technical issues of present invention intends to solve is to provide a kind of tube bank of assembled steel and answers in advance
Power concrete combination beam and its construction method, in Novel steel tube bank concrete combined structure.
The technical solution that the present invention solves the combination beam technical problem is to provide a kind of assembled steel tube bank prestressing force
Concrete combination beam, it is characterised in that the combination beam is by hollow lattice steel pipe bundle and pours in hollow lattice steel pipe bundle
The coagulation local soil type in portion at；The hollow lattice steel pipe bundle is welded by 2-4 Pin steel member, forms "-" type structure, wherein
Shear stud, the upper end opening of top layer's steel member, top layer's steel member and middle layer steel structure are welded on the inside of lowest level steel member
The lower steel plate of part is provided with perforative through-hole；One Pin of lowest level or the two Pin steel members welded together apply anchor after pretension
Gu discharging pretension after concreting condensation, forms assembled steel and restrain prestressed concrete combination beam.
The technical solution that the present invention solves the construction method technical problem is to provide a kind of tube bank of assembled steel and answers in advance
The construction method of power concrete combination beam, it is characterised in that the construction method the following steps are included:
Step 1: the equal reserving installation hole in upper end of the two sides and top layer's steel member of each steel member or pre-buried anchoring piece；
Step 2: perforative through-hole is arranged in the lower steel plate of top layer's steel member and middle layer steel member；
Step 3: welding shear stud on the inside of lowest level steel member；
Step 4: applying prestretching to lowest level steel member when hollow lattice steel pipe bundle is made of 2-3 Pin steel member
Power simultaneously anchors；When hollow lattice steel pipe bundle is made of 4 Pin steel members, to lowest level steel member or weld together most
Lower layer's steel member and secondary lowest level steel member apply pretension and anchor；
Step 5: each layer steel member is successively welded as hollow lattice steel pipe bundle；
Step 6: the casting concrete inside hollow lattice steel pipe bundle；
Step 7: discharging pretension after concrete setting, forms assembled steel and restrain prestressed concrete combination beam.
Compared with prior art, the beneficial effects of the invention are that:
(1) combination beam has both the advantages of steel reinforced concrete structure and prestressed reinforced concrete construction, improves combination beam
Cracking resistance and non-deformability.Structure is simple, reasonable stress, and industrialization degree is high, with steel pipe bundle concrete vertical applied force structure
Part is punched and be may be used in volumed space building design conducive to door and window with wide, and large span, heavy duty and to member section are suitable for
Size has strict demand and the high engineering field of shockproof requirements.
(2) hollow lattice steel pipe bundle can not only undertake primary structure member but also can not have to steel directly as template, entire component
Muscle, does not need template yet, and concrete can be poured again after factory's perfusion or the complete hollow lattice steel pipe bundle of in-site installation, be constructed
Speed is fast, and the construction time is short.
(3) the equal reserving installation hole in the upper end of hollow lattice steel pipe bundle and two sides or pre-buried anchoring piece are used for combination beam
On assembly connection to beam superstructure or vertical supporting member, such as fabricated construction floor, wall beam node and bean column node
It installs affixed.
(4) lower steel plate of top layer's steel member and middle layer steel member is provided with perforative through-hole, is convenient for later period concrete
It pours and sufficiently vibrates, to guarantee that hollow lattice steel pipe bundle and inner concrete form entirety.
(5) before component load, realize steel member to viscous between concrete by the steel member with shear stud
It connects, prestressing force is applied to lower part concrete using the retraction force of steel.Apply in advance after shear stud is installed to concrete in tension zone
Pulling force is offset the precompression in concrete in tension zone first, is then increased with load when joist support is by pulling force is generated by external load
Add, just make concrete in tension, which limits the elongation of concrete, delays or crack occur, can make full use of steel
The characteristics of high-tensile, solves concrete to improve the cracking resistance of combination beam, rigidity, bearing capacity and non-deformability
Material fragility is big, tensile strength is low, occurs the problem of crack too early, solves to construct complicated girder steel or prefabricated in assembled architecture
Beams of concrete connects insecure problem.
(6) construction method is easy to operate, and the construction time is short, and speed of application is fast, and construction efficiency is high, convenient for industry
Change fabricated construction.
Detailed description of the invention
Fig. 1 is the overall structure longitudinal direction sectional schematic diagram of an embodiment of the present invention.
Fig. 2 is the overall structure transverse direction sectional schematic diagram of an embodiment of the present invention.
Fig. 3 is top layer's steel member schematic diagram of an embodiment of the present invention.
Fig. 4 is the hollow lattice steel pipe bundle schematic diagram of an embodiment of the present invention；
In figure: 1, hollow lattice steel pipe bundle；2, concrete；3, lower steel plate；4, through-hole；5, shear stud.
Specific embodiment
Specific embodiments of the present invention are given below.Specific embodiment is only used for that present invention be described in more detail, unlimited
The protection scope of the claim of this application processed.
The present invention provides a kind of assembled steels to restrain prestressed concrete combination beam (abbreviation combination beam, referring to Fig. 1-
4), it is characterised in that the combination beam is by hollow lattice steel pipe bundle 1 and pours the coagulation inside hollow lattice steel pipe bundle 1
Soil 2 forms；The hollow lattice steel pipe bundle 1 is welded by 2-4 Pin steel member, forms "-" type structure；Hollow lattice
The equal reserving installation hole in upper end and two sides of steel pipe bundle 1 or pre-buried anchoring piece；In hollow 1 lowest level steel member of lattice steel pipe bundle
The lower steel plate 3 of side welding shear stud 5, the upper end opening of top layer's steel member, top layer's steel member and middle layer steel member is set
It is equipped with perforative through-hole 4；One Pin of lowest level or the two Pin steel members welded together anchor after applying pretension, to concrete 2
Pretension is discharged after pouring condensation, assembled steel is formed and restrains prestressed concrete combination beam.
The steel member of the hollow lattice steel pipe bundle 1 is rectangle steel, C (U) fashioned iron or I-shaped (H) fashioned iron, using common
Steel, light steel steel or high-strength steel.
The concrete 2 is normal concrete, high-strength concrete or self-compacting concrete.
The quantity and size of the through-hole 4 are designed according to actual condition, can guarantee that concreting is closely knit, guarantee beam
Integral strength.
Invention also provides a kind of construction methods of assembled steel tube bank prestressed concrete combination beam (referred to as to apply
Work method), it is characterised in that the construction method the following steps are included:
Step 1: the equal reserving installation hole in upper end of the two sides and top layer's steel member of each steel member or pre-buried anchoring piece, are used
In by combination beam assembly connection to beam superstructure or vertical supporting member, for example, fabricated construction floor, wall beam node and
The installation of bean column node is affixed；
Step 2: perforative through-hole 4 is arranged in the lower steel plate 3 of top layer's steel member and middle layer steel member, it is mixed convenient for the later period
Solidifying soil 2 is poured and is sufficiently vibrated, to guarantee that hollow lattice steel pipe bundle 1 forms entirety with inner concrete 2；
Step 3: weld shear stud 5 on the inside of lowest level steel member, realize steel member to the bonding of concrete 2, thus
Prestressing force is applied to lower part concrete using the retraction force of steel；
Step 4: applying prestretching to lowest level steel member when hollow lattice steel pipe bundle 1 is made of 2-3 Pin steel member
Power is simultaneously anchored by anchoring piece；When hollow lattice steel pipe bundle 1 is made of 4 Pin steel members, to lowest level steel member or butt welding
The lowest level steel member being connected together and secondary lowest level steel member apply pretension and are anchored by anchoring piece；
Step 5: each layer steel member is successively welded as hollow lattice steel pipe bundle 1；
Step 6: in hollow 1 inside casting concrete 2 of lattice steel pipe bundle；
Step 7: discharging the pretension of steel member after the solidification of concrete 2, forms assembled steel and restrain prestressed concrete
Native combination beam.
The present invention does not address place and is suitable for the prior art.
Claims (5)
1. a kind of assembled steel restrains prestressed concrete combination beam, it is characterised in that the combination beam is by hollow lattice steel pipe bundle
With pour coagulation local soil type inside hollow lattice steel pipe bundle at；The hollow lattice steel pipe bundle is welded by 2-4 Pin steel member
It connects, forms "-" type structure, shear stud is wherein welded on the inside of lowest level steel member, the upper end of top layer's steel member is opened
Mouthful, the lower steel plate of top layer's steel member and middle layer steel member is provided with perforative through-hole；One Pin of lowest level welds together
Two Pin steel members apply pretension after anchor, discharge pretension after concreting condensation, it is pre- to form assembled steel tube bank
Prestressed concrete combination beam.
2. assembled steel according to claim 1 restrains prestressed concrete combination beam, it is characterised in that the hollow lattice
The steel member of structure formula steel pipe bundle is rectangle steel, C-type steel or i shaped steel, using common iron, light steel steel or high-strength steel.
3. assembled steel according to claim 1 restrains prestressed concrete combination beam, it is characterised in that hollow lattice
The equal reserving installation hole in upper end and two sides of steel pipe bundle or pre-buried anchoring piece.
4. assembled steel according to claim 1 restrains prestressed concrete combination beam, it is characterised in that the concrete
For normal concrete, high-strength concrete or self-compacting concrete.
5. a kind of construction method of any assembled steel tube bank prestressed concrete combination beam of claim 1-4, special
Sign be the construction method the following steps are included:
Step 1: the equal reserving installation hole in upper end of the two sides and top layer's steel member of each steel member or pre-buried anchoring piece；
Step 2: the lower steel plate of top layer's steel member and middle layer steel member is provided with perforative through-hole；
Step 3: welding shear stud on the inside of lowest level steel member；
Step 4: applying pretension and anchor to lowest level steel member when hollow lattice steel pipe bundle is made of 2-3 Pin steel member
Gu；When hollow lattice steel pipe bundle is made of 4 Pin steel members, to lowest level steel member or the lowest level steel structure welded together
Part and secondary lowest level steel member apply pretension and anchor；
Step 5: each layer steel member is successively welded as hollow lattice steel pipe bundle；
Step 6: the casting concrete inside hollow lattice steel pipe bundle；
Step 7: discharging pretension after concrete setting, forms assembled steel and restrain prestressed concrete combination beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910106746.3A CN109695315A (en) | 2019-02-02 | 2019-02-02 | A kind of assembled steel tube bank prestressed concrete combination beam and its construction method |
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| CN201910106746.3A CN109695315A (en) | 2019-02-02 | 2019-02-02 | A kind of assembled steel tube bank prestressed concrete combination beam and its construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111155714A (en) * | 2020-01-20 | 2020-05-15 | 河北工业大学 | Prefabricated steel pipe bundle part prestressed concrete beam and construction method thereof |
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| WO1998051883A1 (en) * | 1997-05-15 | 1998-11-19 | Le Groupe Canam Manac Inc. | Composite steel/concrete column |
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| CN106759858A (en) * | 2016-12-29 | 2017-05-31 | 山东科技大学 | The connecting node and preparation method of a kind of H profile steel beam and rectangular steel-tube concrete column |
| CN106836640A (en) * | 2017-03-30 | 2017-06-13 | 贵州大学 | A kind of pre-stressed steel pipe concrete combination beam and preparation method thereof |
| CN207646738U (en) * | 2018-01-10 | 2018-07-24 | 相朝朋 | A kind of building lot concrete vibration stick |
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| CN209585427U (en) * | 2019-02-02 | 2019-11-05 | 河北工业大学 | A kind of assembled steel tube bank prestressed concrete combination beam |
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2019
- 2019-02-02 CN CN201910106746.3A patent/CN109695315A/en active Pending
Patent Citations (8)
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|---|---|---|---|---|
| WO1998051883A1 (en) * | 1997-05-15 | 1998-11-19 | Le Groupe Canam Manac Inc. | Composite steel/concrete column |
| CN202644401U (en) * | 2012-05-15 | 2013-01-02 | 长安大学 | Omnipotent prestress stretch-draw connecting structure for finish-rolling screw-thread steel |
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| CN207646738U (en) * | 2018-01-10 | 2018-07-24 | 相朝朋 | A kind of building lot concrete vibration stick |
| CN208328647U (en) * | 2018-06-19 | 2019-01-04 | 湖北省城建设计院股份有限公司 | A kind of durable lower flange hollow slab bridge of the quick prefabricated assembled light in city |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111155714A (en) * | 2020-01-20 | 2020-05-15 | 河北工业大学 | Prefabricated steel pipe bundle part prestressed concrete beam and construction method thereof |
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