CN106988483B - A kind of assembled steel reinforced Concrete U Vierendeel girder and its connection steelframe - Google Patents
A kind of assembled steel reinforced Concrete U Vierendeel girder and its connection steelframe Download PDFInfo
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- CN106988483B CN106988483B CN201710411915.5A CN201710411915A CN106988483B CN 106988483 B CN106988483 B CN 106988483B CN 201710411915 A CN201710411915 A CN 201710411915A CN 106988483 B CN106988483 B CN 106988483B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 95
- 239000010959 steel Substances 0.000 title claims abstract description 95
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 35
- 210000003205 muscle Anatomy 0.000 claims abstract description 109
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 31
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims abstract description 5
- 244000046052 Phaseolus vulgaris Species 0.000 claims abstract description 5
- 238000004873 anchoring Methods 0.000 claims abstract description 5
- 230000002787 reinforcement Effects 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 8
- 230000004224 protection Effects 0.000 claims description 7
- 239000004567 concrete Substances 0.000 abstract description 51
- 238000010276 construction Methods 0.000 abstract description 23
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 abstract description 4
- 238000009435 building construction Methods 0.000 abstract description 2
- 239000004035 construction material Substances 0.000 abstract description 2
- 239000004576 sand Substances 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 239000011178 precast concrete Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000010412 perfusion Effects 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229920000965 Duroplast Polymers 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012407 engineering method Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
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Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/04—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for lintels, beams, or transoms to be encased separately; Special tying or clamping means therefor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The present invention relates to a kind of assembled steel reinforced Concrete U Vierendeel girder and its connection steelframe, belong to construction material and technical field of building construction.The present invention provides a kind of assembled steel reinforced Concrete U Vierendeel girder, including bottom plate (11) and side plate (12), it is characterized in that, in the bottom plate (11) muscle (13) is indulged equipped with bottom plate, configuration anti-torsional structure indulges muscle (14) in side plate (12), beam periphery is furnished with stirrup (15), and the bottom plate indulges the both ends that muscle (13) stretches out beam, and first vertical muscle is longer than other vertical muscle to face beam-ends from right to left.The concrete that the present invention enables prefabricated U-shaped Vierendeel girder to be poured well with after in groove is reliably connected, and good integrity, mould is few and simple, easy for construction；U-frame is set a roof beam in place with good strength and stiffness, will not cracking in lifting is carried；The set a roof beam in place bottom plate of both ends stretching of U-frame is indulged muscle (13) and can be welded in bean column node on connection steelframe (50), not only strengthen the anchoring of reinforcing bar but also extend the anchorage length of reinforcing bar, assembling production is truly realized, there is extensively popularizing application prospect.
Description
Technical field
The present invention relates to the girder construction in building field, belongs to construction material and technical field of building construction, particularly relates to
And a kind of assembled steel reinforced Concrete U Vierendeel girder and its connection steelframe.
Background technology
Prefabricated concrete structure, refers to the coagulation being assembled by precast concrete by reliable connection mode
Soil structure, including assembled monolithic concrete structure, full assembling concrete structure etc..In architectural engineering, abbreviation assembled is built
Build；In Structural Engineering, abbreviation fabricated construction.Prefabricated components, refer to the concrete component in factory or live pre-production,
Ru Liang, plate, wall, column, balcony, stair, awning etc..
Traditional house building technology low production efficiency, speed of application is slow, the construction period is long, high material consumption and worker's labor
Fatigue resistance is big, a series of this situation has not adapted to rigid demand of the modern society to house.And assembled architecture is with following
Feature：1. design variation, can be designed according to housing need；2. function modernizes, a variety of energy conservation and environmental protections can be used
Deng new material；3. manufacturing works, can cause building components and fittings are unified to be factory produced, accomplish without any letup；4. construction assembling
Change, labor cost can be substantially reduced, reduce waste of material, part working at height is arranged in ground completes；5. the time is most
Optimization, significantly shortens construction period.Assembled architecture focuses on the protection to environment, resource, is effectively reduced in its work progress
Sewage, pernicious gas, the discharge of dust and the pollution of construction noise are built, reduces various shadows of the construction to surrounding enviroment
Ring, be conducive to improve the labor productivity of building, promote design, building to become more meticulous, lift the total quality of building and energy saving
Emission reduction rate, promotes Building Trade in China sustainable health development, meets the demand of national economic development.Assembled architecture is future
One of industry project most with prospects.
But assembled architecture needs to connect in prefabricated components of the same race or prefabricated components not of the same race, since reinforcing bar mixes
Solidifying soil component be built up by concrete and bar pouring it is integral, it is necessary to solve connection and the anchorage problem of longitudinal reinforcement, Yi Jigang
Bond stress problem between muscle and concrete.There are many to ask in node point connection for assembled steel tendon concrete frame structure at present
Topic and difficulty, longitudinal reinforcement can collide with each other and mutually push up relatively at bean column node when being installed such as frame solid beam, and mutually
Indulge muscle and be difficult to through causing beam bottom first row to indulge, muscle is pressed in another beam bottom second normal thereto and the above is arranged in vertical beam bottom
On vertical muscle, it is difficult to realize assembling frame structure.
Such as, the disclosure of the invention of Chinese Patent Application No. 200810023919.7 band internal-rib U-shaped precast concrete shell master
It is used to make reinforced beam, stirrup is fabricated to prefabricated U-shaped shell, U-shaped shell together with the protective layer of reinforced beam
Both the construction plank as reinforced beam, the part for also serving as structure participate in co-operation；Not only contribute to save big
The construction formwork and its workload of amount, improve construction efficiency, reduce labour, realize cross-operation, reduce construction cost, ensure
Construction quality；And can economize on resources and the energy, environmental protection, promote the development of building industrialization.Outside U-shaped precast concrete
The making engineering method of shell is by quick forming method, and not only making is simple, wall is thin, but also the internal-rib of shell can ensure premanufactured skin
Core concrete is poured with after being capable of reliable bond, co-operation.In addition, the making engineering method of U-shaped precast concrete shell can reach
To the requirement of thin-walled, it is ensured that the protective layer thickness of armored concrete beam main tendon is thickness of concrete cover as defined in specification.
The disclosure of the invention of Chinese Patent Application No. 201310219722.1 is a kind of to be used to make the pre- of reinforced beam
Shell and mould processed, the mould include：I shapes Internal baffle, U-shaped outer baffle, outer side mold, outer bed die, interior side form, interior bed die, connection
Bar；I shapes Internal baffle and U-shaped outer baffle are combined, and are arranged on the inside of interior side form and interior bed die both ends, and interior side form is arranged on interior
The both sides of bed die, interior side form are fixed by connecting rod and are integral, and outer side mold, the lower part of interior bed die are provided with the outside of interior side form
It is provided with outer bed die.The premanufactured skin takes the shape of the letter U and is furnished with stirrup, and there are inwardly projecting internal-rib in side and bottom surface and inner surface is in recessed
Convex, stirrup are cast in internal-rib, and internal-rib is perpendicular rib, U-shaped premanufactured skin inner surface concave-convex surface and with internal-rib, make U-shaped prefabricated
The core concrete and the reliable bond of premanufactured skin and co-operation that shell pours after can ensureing well, fastness and reliable
Higher, the of simple structure and strong practicability of property, has stronger popularization and application value.
Above-mentioned two patented technologies seek to solve connection and the anchorage problem of reinforcing bar, thus have invented precast concrete beam
Shell, form U-shaped concrete casing, the construction of longitudinal reinforcement constructs as Cast-in-situ Beam, but both of which is lacked there are following
Point：First, U-shaped beam does not have longitudinal reinforcement, it will cause U-shaped beam carry, lifting when under Gravitative Loads by curved cracking, two
The thickness for being U-shaped beam shell is only the protective layer thickness of outer reinforcement, and thickness is too thin to be difficult to concrete perfusion and be difficult to vibrate close
It is real, quality defect of concrete can be caused, is not bound third, beams of concrete bottom plate indulges muscle with stirrup, and in beams of concrete both sides
Longitudinal anti-torsional structure in portion is indulged muscle and is not bound with stirrup, it is impossible to a firm framework of steel reinforcement is formed, fourth, beams of concrete bottom
Portion's first row indulges muscle and two middle side parts indulge muscle and contacted with precast concrete not close, and concrete is engaged bond stress not with the reinforcing bar
It is good.
The content of the invention
The purpose of the present invention is overcome the deficiencies in the prior art, solves the precast concrete beam shell provided in the prior art
In stirrup the problem of cannot cannot forming an overall framework of steel reinforcement with indulging muscle binding in beam, precast concrete beam shell is not
The problem of premanufactured skin stress can be overcome to crack, the vertical muscle in precast concrete beam shell cannot be engaged closely with concrete to be bonded
The problem of power is bad, concrete is difficult to vibration compacting and causes asking for quality defect of concrete when precast concrete beam shell is constructed
Topic, while solution framework the beam connection of beam steel and anchorage problem at concrete frame joint, there is provided a kind of assembled steel reinforced mixed
Solidifying soil U-frame is set a roof beam in place, and easier assembled steel reinforced Concrete U construction of frame beam method.
To achieve the above object, the technical solution adopted by the present invention is：A kind of assembled steel reinforced Concrete U Vierendeel girder,
Including bottom plate and side plate, muscle is indulged equipped with bottom plate in bottom plate, is Vierendeel girder bottom first row longitudinal reinforcement, anti-torsional structure is configured in side plate
Vertical muscle, beam periphery are furnished with stirrup, stretch out at the top of side plate, bottom plate and side plate thickness meet reinforcing bar Minimal Protective thickness requirement and plate most
Small thickness requirement.
Further, the bottom plate indulge muscle stretch out beam both ends, and all first vertical muscle from right to left of face beam-ends be longer than it is other
Vertical muscle or all first vertical muscle from left to right are longer than other vertical muscle.
Further, the bottom plate inwardly stretch out is provided with several reinforcing bar pins, enable prefabricated U-shaped Vierendeel girder well with
The concrete poured afterwards in groove is reliably connected, good integrity.
Further, the side plate and the secondary beam position that intersects vertically are provided with the gap passed perpendicularly through for secondary beam, and side plate disconnects,
Anti-torsional structure indulges muscle and keeps connection, and gap width, which can accommodate secondary beam and penetrate, to be pierced by.
On this basis, further technical solution is：A kind of mould for making assembled steel reinforced Concrete U Vierendeel girder
Tool, the mould include：The thin steel tank internal model of outer side mold, beam-ends outer baffle, U-shaped, end mould u tie, external mold pull rod, casing, U-shaped are recessed
Groove；The thin steel tank internal model of the U-shaped, outer side mold, beam-ends outer baffle and end mould u tie are combined into inverted U-frame and set a roof beam in place mould；Institute
State beam-ends outer baffle and compress outer side mold termination and the thin steel tank internal model termination of U-shaped, top indulges muscle correspondence position with bottom plate and is provided with confession
Bottom plate indulges the U-shaped groove that muscle is passed through or is pressed into, and bottom plate is indulged muscle and is embedded in the U-shaped groove；Filled up in the thin steel tank internal model of U-shaped
Sand；Periphery is vertically provided with stirrup in the thin steel tank internal model of the U-shaped；The U-shaped groove corresponds to stirrup position insertion place
In basic unit；Anti-torsional structure is provided between the thin steel tank internal model of the U-shaped and outer side mold to indulge muscle and bind；In the thin steel tank of U-shaped
Mould top equivalent in assembled steel reinforced Concrete U Vierendeel girder base plate thickness space equipped with bottom plate indulge muscle and with stirrup bind；
Reinforcing bar pin is inserted into sand in the thin steel tank internal model of the U-shaped, reinforcing bar pin exposed parts length is less than base plate thickness, the bottom of more than
The 1/2 of plate thickness.
Further, the thin steel tank internal model of the U-shaped is made of sheet metal or duroplasts, and both sides inner wall is equipped with and the material such as iron wire
Expect the shackle being fixedly connected.
Further, wide some run through along the main body of the mould for external mold pull rods and the perforative casing of casing to being vertically installed with
Hole, the casing through hole run through two layers of outer side mold and the thin steel tank internal model two side of U-shaped；Described sleeve pipe is installed on the casing through hole
It is interior；The external mold pull rod is Screw arbor with nut at both-ends, through casing, after the shimming of both sides, is fastened and fixed with corresponding nut.
Further, the casing in the thin steel tank internal model of the U-shaped is made of flexible material.
Further, the particle diameter of the sand should be less than 5mm.
On this basis, further technical solution is：One kind, which is used to connect, anchors assembled steel reinforced Concrete U frame
The connection steelframe of beam bean column node, it is characterised in that the set a roof beam in place bottom plate of stretching of the U-frame around the connection steelframe and node indulges muscle
Welding, make U-frame set a roof beam in place bottom plate indulge muscle can not only be used for mechanical anchor head play the role of again extend anchorage length.
Further, the connection steelframe is made of angle steel, is indulged muscle with the bottom plate of the bottom plate outer end and is spliced into " well " word
Shape.
Further, the connection steelframe is in " windmill " shape, and by 4 root long angle steel and at least 1 angle clip is formed, the long angle
Four sides of " mouth " word are welded to each other steel among " well " font described in, and it is corresponding to indulge muscle with the length of bottom plate outer end；The angle clip
It is welded on the connection steelframe side, it is corresponding with the short vertical muscle among bottom plate outer end.
On this basis, further technical solution is：The construction party of the assembled steel reinforced Concrete U Vierendeel girder
Method, includes making and the installation method of the assembled steel reinforced Concrete U Vierendeel girder, operates as follows：
S01, in smooth place basic unit snap the line, determine stirrup position line, determine that U-frame is set a roof beam in place the sideline of biside plate；
S02, the place basic unit insertion U-shaped groove at stirrup position line, the depth of U-shaped groove stretch out U-frame for stirrup
Set a roof beam in place the height on side plate top, stirrup is inserted in U-shaped groove, sand and place basic unit are poured into the U-shaped groove void part
It is flat, penetrate that bottom plate indulges muscle and anti-torsional structure indulges muscle in stirrup, and it is firm with stirrup binding；
S03, penetrate the thin steel tank internal model of U-shaped in stirrup；Assemble outer side mold and beam-ends outer baffle, with external mold pull rod, casing,
Gasket, nut fix outer side mold, and beam-ends outer baffle is fixed with end mould u tie and u tie fixing piece；
S04, fill in the thin steel tank internal model of U-shaped and fill out fine sand, suitably sprinkles water and consolidates；
S05, fill at the top of outer side form and the aerial concrete perfusion of folder of the thin steel tank internal model composition of U-shaped, the thin steel tank internal model of U-shaped
It is extremely concordant with the top of outer side mold to note concrete, and is consolidated with vibrating head；
S06, place setting and hardening, until form removal and conserved when meeting form removal condition；
S07, U-frame are set a roof beam in place after concrete reaches design strength, and upset of leaning to one side is kept flat, and finished product protection is carried out after acceptance(check)
It is to be installed；
S08, propped up U-frame in engineering site and set a roof beam in place stent, elevation control and orientation axis, lifts U-frame successively and sets a roof beam in place
To designated position, the set a roof beam in place bottom plate of stretching of U-frame is indulged muscle and is placed on connection steelframe, and fixed U-frame is set a roof beam in place, and prevents its generation
Displacement deflection；
S09, the bottom plate for stretching that U-frame sets a roof beam in place indulge muscle with being connected steelframe welding, and should inspect for acceptance qualification；
S10, setting a roof beam in place in U-frame is laid with Vierendeel girder bottom second row and above row's cast in place reinforced bar in groove, is laid with frame back
Cast in place reinforced bar and the cast in place reinforced bar for being attached thereto component, hidden project inspection acceptance(check) after-pouring cast-in-place concrete.
Further, in step S03, casing should be put on when wearing external mold pull rod, with facilitate completion after remove.
Further, in step S04, the thin steel tank internal model madial wall of U-shaped is provided with tension device, for tensing both sides
Wall, keeps that two side is parallel and spacing, and the thin steel tank internal model side wall of U-shaped is outward-dipping when preventing from filling sand.
Preferably, the tension device is shackle, is connected between shackle with iron wire.
Further, in step S04, stragith edge is put in advance in the thin steel tank internal model of U-shaped and wears iron wire to beam both ends.
Further, in step S05, when concreting indulges muscle to bottom plate, bar dowel is inserted perpendicularly into, as U-frame
The reinforcing bar pin of pouring concrete after setting a roof beam in place in groove.
Further, in step S06, form removal order is：Solution beginning mould u tie, take off beam-ends outer baffle, untie outer die drawing
Bar, take off in outer side mold, the sandpit for pulling stragith edge that sand is pulled in beam both ends, the extraction thin steel tank internal model of U-shaped.
Beneficial effects of the present invention.
1st, prefabricated U-shaped rc-frame-beam shape provided by the invention, the prefabricated U-shaped Vierendeel girder are furnished with stirrup, hoop
Muscle is higher by U-frame and sets a roof beam in place biside plate top, and U-frame bottom plate of setting a roof beam in place indulges muscle equipped with bottom plate, and U-frame biside plate of setting a roof beam in place is antitorque equipped with longitudinal direction
The vertical muscle of construction, binds firmly, bottom plate indulges muscle and stretches out beam both ends, wherein all first vertical muscle or institutes from right to left between stirrup and vertical muscle
Have from left to right that first vertical muscle stretches out longer, U-frame groove-bottom of setting a roof beam in place has the bar dowel pin of stretching, enables prefabricated U-shaped Vierendeel girder
The concrete poured well with after in groove is reliably connected, good integrity, and mould is few and simple, easy for construction very practical, U-frame
Set a roof beam in place with good strength and stiffness, will not cracking in lifting is carried, there is extensively popularizing application prospect.U-frame frame
The bottom plate that beam both ends are stretched out is indulged muscle and is welded in bean column node on a connection steelframe, makes the steel bar welding that each U-frame is set a roof beam in place same
On a horizontal plane, it will not be answered back to mutually between reinforcing bar, be collapsed, the anchoring for not only having strengthened reinforcing bar but also the anchoring length for extending reinforcing bar
Degree, is truly realized assembling production, has extensively popularizing application prospect in current assembled architecture.
2nd, in order to overcome precast reinforced concrete frame beam intermediate node bottom plate to indulge connection and the anchorage length problem of muscle, this
Invention is using prefabricated " U " shape reinforced beams, used technical solution is that the bottom of beam and both sides are made tabular, plate
Thickness meets reinforcing bar Minimal Protective thickness requirement and plate minimum thickness requirement, and U-frame bottom plate of setting a roof beam in place is indulged muscle and stretched out from beam both ends.It is existing
During installation assembling, the set a roof beam in place bottom plate of stretching of the U-frame of surrounding at frame joint is indulged muscle and is welded on node steelframe, thus
Completely solve connection and anchorage problem that beam bottom first row indulges muscle.The vertical muscle for arranging beam bottom second row and the above during site operation
It is put into the groove that U-frame is set a roof beam in place, vertical muscle can stretch at concrete frame joint, so also just completely solve beam bottom second
Row and connection and the anchorage problem for arranging vertical muscle above.Cushion block or small Steel bar rack are padded below vertical muscle can solve reinforcing bar with mixing
The bond stress problem of soil is coagulated, is next equally constructed just as Cast-in-situ Beam.
3rd, in order to overcome U-frame set a roof beam in place carry, lifting when under Gravitative Loads by curved cracking, and overcome vertical muscle with it is pre-
Concrete contact processed is not close, and concrete is engaged the defects of bad with the reinforcing bar, and the present invention is using prefabricated " U " shape reinforced concretes
Arrangement of reinforcement in native beam bottom plate and side plate, used technical solution are that reinforcing bar is matched somebody with somebody for Vierendeel girder bottom the in prefabricated " u "-shaped Vierendeel girder bottom
One row's longitudinal reinforcement, i.e. bottom plate indulge muscle, and configuration anti-torsional structure indulges muscle in side plate and stirrup, periphery stirrup stretching U-shaped match somebody with somebody in beam periphery
Vierendeel girder side plate top, so vertical muscle can bind with stirrup and indulge muscle, laterally reinforced concrete pours one at the same time, reinforcing bar and concrete
Close contact bond stress is strong, and vertical muscle bears bending stress, and stirrup bears shear stress, U-shaped beams of concrete is not cracked.U-frame
Bottom plate of setting a roof beam in place is indulged muscle and is stretched out from both ends in concrete frame joint anchor connection.
4th, juxtaposition is mutually collided in order to overcome at precast reinforced concrete frame node bottom plate to indulge muscle, the present invention uses
One node connects steelframe, and used technical solution is that connection steelframe is small shaped steel, and such as L40x5, is welded, surface is put down
Together, the Vierendeel girder beam bottom first row of node surrounding can be caused to indulge muscle and fall on same absolute altitude, what Vierendeel girder beam-ends bottom was stretched out
Bottom plate indulges muscle with being connected steelframe welding, and the different length of vertical muscle that beam-ends bottom is stretched out, can arrange in face of beam-ends from right to left or from left to right
First is longer vertical muscle, remaining vertical muscle is compared with bar dowel, and the termination that connection steelframe stretches out ensures that column indulges muscle away from column side >=60mm
It is unaffected.Since the protective layer thickness that each beam bottom plate indulges muscle is identical, thus the vertical muscle of the identical beam of coaxial line is concentric alignment
, the steel bar welding of alignment not only adds anchorage head but also extends connection on same root angle steel.It is rigidly good to connect steelframe, does not have
There is the steel bar welding of alignment on connection steelframe, be end reinforced anchorage head, while also extend the anchorage length of reinforcing bar.
5th, in order to overcome U-frame to set a roof beam in place, bottom plate and side plate thickness are too thin is difficult to concrete perfusion and is difficult to vibration compacting, meeting
The defects of causing concrete quality problem, the present invention set a roof beam in place inversion construction using by U-frame, i.e., Open Side Down bottom plate upper, this
Sample is easy to concrete perfusion and abundant vibration compacting, it is ensured that concrete quality.
Brief description of the drawings
Fig. 1 (a) is the precast construction schematic diagram of the assembled steel reinforced Concrete U Vierendeel girder of the embodiment of the present invention 1；
Fig. 1 (b) is the vertical to profile of the assembled steel reinforced Concrete U Vierendeel girder of the embodiment of the present invention 1；
Fig. 2 is the assembled steel reinforced Concrete U Vierendeel girder secondary beam of the embodiment of the present invention 2 by locating the schematic diagram of gap；
Fig. 3 is the mold structure diagram that the embodiment of the present invention 3 is used to make assembled steel reinforced Concrete U Vierendeel girder；
Fig. 4 is the beam-ends structure that the embodiment of the present invention 3,4 is used to make the mould of assembled steel reinforced Concrete U Vierendeel girder
Schematic diagram；
Fig. 5 is the thin steel tank internal model schematic diagram of U-shaped in the embodiment of the present invention 3；
Fig. 6 is that template assemblies when assembled steel reinforced Concrete U Vierendeel girder is inverted construction are made in the embodiment of the present invention 3,4
Schematic diagram；
Fig. 7 is connection steel frame construction schematic diagram in the embodiment of the present invention 5；
Fig. 8 is that the assembled steel reinforced Concrete U Vierendeel girder beam-ends of the embodiment of the present invention 6 stretches out reinforcing bar with being connected steelframe welding
Schematic diagram；
Fig. 9 is that U-frame is set a roof beam in place configuration in groove after the assembling of the assembled steel reinforced Concrete U Vierendeel girder of the embodiment of the present invention 6
Reinforcing bar and cast-in-place concrete schematic diagram.
Parts, position and numbering in figure：It is short vertical that 11- bottom plates, 12- side plates, 13- bottom plates indulge muscle, 131- long indulges muscle, 132-
Muscle, 14- anti-torsional structures indulge muscle, 15- stirrups, 16- reinforcing bars pin, 17- gap, 21- outer side molds, the thin steel tank internal model of 22-U shapes, 221-
Shackle, 222- casings through hole, 23- beam-ends outer baffle, 24- ends mould u tie, 25- external molds pull rod, 26- casings, 27-U shapes are recessed
Groove, 28- gaskets, 29- nuts, 30-U shape hoops fixing piece, 41- places basic unit, 42- sands, 50- connections steelframe, 501- long angle steel,
The weld seam between weld seam, 504- angle clips and long angle steel, 61- cast in place reinforced bar, 62- between 502- angle clips, 503- long angle steel
Cast-in-place concrete.
Embodiment
Technical scheme is described in detail below in conjunction with the accompanying drawings, but present disclosure is not limited to
This.
Embodiment 1：
As shown in Fig. 1 (a), Fig. 1 (b), a kind of assembled steel reinforced Concrete U Vierendeel girder of the invention, including bottom plate 11
With side plate 12, bottom plate is configured with bottom plate 11 and indulges muscle 13, is Vierendeel girder bottom first row longitudinal reinforcement, antitorque structure is configured in side plate 12
Vertical muscle 14 is made, beam periphery is furnished with stirrup 15, stretches out the top of side plate 12, and bottom plate 11 and 12 thickness of side plate meet reinforcing bar Minimal Protective thickness
Degree requires and the requirement of plate minimum thickness.The bottom plate indulges the both ends that muscle 13 stretches out beam, and face beam-ends it is all from right to left first it is vertical
Muscle is longer than other vertical muscle；The bottom plate 11 inwardly stretches out several reinforcing bar pins 16, enable prefabricated U-shaped Vierendeel girder well with it is rear
The concrete poured in groove is reliably connected, good integrity.
Embodiment 2：
As shown in Fig. 2, the present invention a kind of assembled steel reinforced Concrete U Vierendeel girder, be on the basis of embodiment 1,
The side plate 12 and the secondary beam position that intersects vertically are provided with the gap 17 passed perpendicularly through for secondary beam, and side plate 12 disconnects, anti-torsional structure
Vertical muscle 14 keeps connection.Assembled steel reinforced Concrete U Vierendeel girder is girder in Fig. 2, and secondary beam is shelved on the girder, girder bottom
Lower the secondary beam bottom of than, girder beam bottom plate 11 does not turn off.17 width of gap can accommodate secondary beam and penetrate taking-up.
Embodiment 3：
As seen in figures 3-6, it is of the invention a kind of to make assembled steel reinforced Concrete U Vierendeel girder described in Examples 1 and 2
Mould, the mould include：The thin steel tank internal model 22 of outer side mold 21, beam-ends outer baffle 23, U-shaped, end mould u tie 24, external mold pull rod 25,
Casing 26, U-shaped groove 27；U-shaped thin steel tank internal model 22, outer side mold 21, beam-ends outer baffle 23 and the end mould u tie 24 are combined into
Inverted U-frame is set a roof beam in place mould；Sand 42 is filled up in the thin steel tank internal model 22 of U-shaped, the particle diameter of sand 42 is less than 5mm；Institute
State the thin steel tank internal model 22 of U-shaped and periphery is vertically provided with stirrup 15；The U-shaped groove 27 corresponds to 15 position of stirrup insertion Slag
In layer 41；Anti-torsional structure is provided between the thin steel tank internal model 22 of the U-shaped and outer side mold 21 to indulge muscle 14 and bind；The U-shaped is thin
Muscle 13 is indulged equipped with bottom plate simultaneously in 22 top of steel tank internal model equivalent in assembled steel reinforced 11 thickness space of Concrete U Vierendeel girder bottom plate
Bound with stirrup 15；Reinforcing bar pin 16,16 exposed parts of reinforcing bar pin length are inserted into sand 42 in the thin steel tank internal model 22 of the U-shaped
Degree is less than 11 thickness of bottom plate, more than the 1/2 of 11 thickness of bottom plate.
As shown in figure 4, the beam-ends outer baffle 23 compresses 21 termination of outer side mold and thin 22 termination of steel tank internal model of U-shaped, top
13 correspondence position of muscle is indulged with bottom plate and is provided with the U-shaped groove 27 for indulging muscle 13 for bottom plate and passing through or being pressed into, and bottom plate is indulged muscle 13 and is embedded in
In the U-shaped groove 27.
As shown in figure 5, the thin steel tank internal model 22 of U-shaped is made of sheet metal or duroplasts, both sides inner wall is equipped with and iron
The shackle 221 that the materials such as silk are fixedly connected.
Embodiment 4：
As shown in Fig. 4 and Fig. 6, assembled steel reinforced Concrete U frame described in a kind of making Examples 1 and 2 of the invention
The mould of beam, be on the basis of embodiment 3, it is wide some for external mold pull rods 25 and set to being vertically installed with along the main body of the mould
The perforative casing through hole 222 of pipe 26, the casing through hole 222 run through two layers of outer side mold 21 and thin 22 both sides of steel tank internal model of U-shaped
Wall；Described sleeve pipe 26 is installed in the casing through hole 222；The external mold pull rod 25 is Screw arbor with nut at both-ends, through casing 26, both sides
After shimming 28, it is fastened and fixed with corresponding nut 29.
Embodiment 5：
A kind of as shown in fig. 7, connection steel for being used to connect anchoring 1 rc-frame-beam node of the embodiment of the present invention
Frame, the set a roof beam in place bottom plate of stretching of the connection steelframe 50 and the U-frame around node are indulged muscle 13 and are welded, and U-frame bottom plate of setting a roof beam in place is indulged muscle
13 can not only be used for mechanical anchor head plays the role of extending anchorage length again；The connection steelframe 50 is in " windmill " shape, by 4 root longs
Angle steel 501 and at least 1 angle clip 502 is formed, indulging muscle 13 with the bottom plate of 11 outer end of bottom plate is spliced into " well " font；It is described
Long angle steel 501 is welded to each other along four sides of " mouth " word among " well " font, and it is opposite to indulge muscle 131 with the length of 11 outer end of bottom plate
Should；The angle clip 502 is welded on 50 side of connection steelframe, corresponding with the short vertical muscle 132 among 11 outer end of bottom plate.
Embodiment 6：
On the basis of embodiment 1-5, a kind of construction method of assembled steel reinforced Concrete U Vierendeel girder of the invention,
Making and installation method including the assembled steel reinforced Concrete U Vierendeel girder, operate as follows：
S01, in smooth place basic unit 41 snap the line, determine 15 position line of stirrup, determine that U-frame is set a roof beam in place biside plate 12
Sideline；
S02, the place basic unit 41 at 15 position line of stirrup are embedded in U-shaped groove 27, and the depth of U-shaped groove 27 is stirrup 15
Stretch out U-frame set a roof beam in place side plate 12 top height, stirrup 15 is inserted in U-shaped groove 27, the 27 void part of U-shaped groove fill
Enter sand 42 and place basic unit 41 is flat, penetrate that bottom plate indulges muscle 13 and anti-torsional structure indulges muscle 14 in stirrup 15, and tied up with stirrup 15
Fasten solid；
S03, penetrate the thin steel tank internal model 22 of U-shaped in stirrup 15；Outer side mold 21 and beam-ends outer baffle 23 are assembled, with outer die drawing
Bar 25, casing 26, gasket 28, nut 29 fix outer side mold 21, are fixed with end mould u tie 24 and u tie fixing piece 30 outside beam-ends
Baffle 23；Casing 26 should be put on when wearing external mold pull rod 25, with facilitate completion after remove；
S04, fill in the thin steel tank internal model 22 of U-shaped and fill out fine sand, suitably sprinkles water and consolidates；It is pre- in the thin steel tank internal model 22 of U-shaped
Put stragith edge and wear iron wire to beam both ends；Thin 22 madial wall of steel tank internal model of U-shaped is provided with tension device, for tensing both sides
Wall, keeps that two side is parallel and spacing, and thin 22 side wall of steel tank internal model of U-shaped is outward-dipping when preventing from filling sand.The tension device is excellent
Elect shackle 221 as, connected between shackle 221 with iron wire；
S05, the aerial concrete perfusion of folder formed in outer side form 21 and the thin steel tank internal model 22 of U-shaped, the thin steel tank internal model 22 of U-shaped
It is extremely concordant with the top of outer side mold 21 to push up concrete perfusion, and is consolidated with vibrating head；When concreting indulges muscle 13 to bottom plate, hang down
Straight cutting enters bar dowel, the reinforcing bar pin 16 of pouring concrete after setting a roof beam in place as U-frame in groove；
S06, place setting and hardening, until form removal and conserved when meeting form removal condition；Form removal order be：Solve beginning mould U-shaped
Hoop 24, take off beam-ends outer baffle 23, untie external mold pull rod 25, take off outer side mold 21, pull stragith edge that sand is pulled in beam both ends
In sandpit, extract the thin steel tank internal model 22 of U-shaped out；
S07, U-frame are set a roof beam in place after concrete reaches design strength, and upset of leaning to one side is kept flat, and finished product protection is carried out after acceptance(check)
It is to be installed；
S08, propped up U-frame in engineering site and set a roof beam in place stent, elevation control and orientation axis, lifts U-frame successively and sets a roof beam in place
To designated position, the set a roof beam in place bottom plate of stretching of U-frame is indulged muscle 13 and is placed on connection steelframe 50, and fixed U-frame is set a roof beam in place, and prevents it
It is subjected to displacement inclination；
S09, the bottom plate for stretching that U-frame sets a roof beam in place are indulged muscle 13 and are welded with being connected steelframe 50, and should inspect for acceptance qualification；Such as Fig. 8
Shown, the connection steelframe 50 is not limited only to set a roof beam in place at concrete frame joint beam-ends of U-frame and stretches out the connection of reinforcing bar, can also
Solid beam-ends stretches out the connection of reinforcing bar when indulging muscle 13 for the only row's bottom plate of bottom plate 11；
S10, setting a roof beam in place in U-frame is laid with Vierendeel girder bottom second row and above row's cast in place reinforced bar 61 in groove, is laid with Vierendeel girder
Top cast in place reinforced bar 61 and the cast in place reinforced bar 61 for being attached thereto component, hidden project inspection acceptance(check) after-pouring cast-in-place concrete
62.As shown in figure 9, as U-frame U-frame after assembling of setting a roof beam in place is set a roof beam in place configuration 62 knot of cast in place reinforced bar 61 and cast-in-place concrete in groove
Structure.
The above, is only presently preferred embodiments of the present invention, and is not used to the interest field of the limitation present invention.It is any with this
The technical solution that the interest field that claim is covered is implemented, or any those skilled in the art, utilize
The method content of the disclosure above makes the scheme of many possible changes and modifications, belongs to protection scope of the present invention.
Claims (4)
1. a kind of assembled steel reinforced Concrete U Vierendeel girder, including bottom plate (11) and side plate (12), it is characterised in that the bottom
Muscle (13) is indulged equipped with bottom plate in plate (11), is Vierendeel girder bottom first row longitudinal reinforcement；Configuration anti-torsional structure in the side plate (12)
Vertical muscle (14)；Beam periphery is furnished with stirrup (15), stretches out at the top of side plate (12)；Bottom plate (11) and side plate (12) thickness meet reinforcing bar most
Small protection thickness requirement and plate minimum thickness requirement；The bottom plate indulges the both ends that muscle (13) stretches out beam, and all right sides of face beam-ends
Play first vertical muscle and be longer than other vertical muscle or all first vertical muscle from left to right are longer than other vertical muscle.
A kind of 2. assembled steel reinforced Concrete U Vierendeel girder as claimed in claim 1, it is characterised in that：The bottom plate (11)
Inwardly stretch out and be provided with several reinforcing bar pins (16).
A kind of 3. assembled steel reinforced Concrete U Vierendeel girder as claimed in claim 1, it is characterised in that：The side plate (12)
The secondary beam position that intersects vertically is provided with the gap passed perpendicularly through for secondary beam (17), side plate (12) disconnects, and anti-torsional structure indulges muscle
(14) connection is kept, gap (17) width, which can accommodate secondary beam and penetrate, to be pierced by.
A kind of 4. assembled steel reinforced Concrete U Vierendeel girder bean column node connection anchoring connection steelframe, it is characterised in that the company
Connect the U-frame around steelframe (50) and node set a roof beam in place stretching bottom plate indulge muscle (13) welding；The connection steelframe (50) uses angle
Steel makes, and indulges muscle (13) with the bottom plate of the bottom plate (11) outer end and is spliced into " well " font；The connection steelframe (50) is in " wind
Car " shape, by 4 root long angle steel (501) and at least 1 angle clip (502) is formed, and the long angle steel (501) is along " well " font
Four sides of middle " mouth " word are welded to each other, and it is corresponding to indulge muscle (131) with the length of bottom plate (11) outer end；Angle clip (502) weldering
It is connected on connection steelframe (50) side, it is corresponding with the short vertical muscle (132) among bottom plate (11) outer end.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810185831.9A CN108457421B (en) | 2017-06-05 | 2017-06-05 | Manufacturing die and manufacturing method of assembled reinforced concrete U-shaped frame beam |
| CN201710411915.5A CN106988483B (en) | 2017-06-05 | 2017-06-05 | A kind of assembled steel reinforced Concrete U Vierendeel girder and its connection steelframe |
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| CN201710411915.5A CN106988483B (en) | 2017-06-05 | 2017-06-05 | A kind of assembled steel reinforced Concrete U Vierendeel girder and its connection steelframe |
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| CN201810185831.9A Division CN108457421B (en) | 2017-06-05 | 2017-06-05 | Manufacturing die and manufacturing method of assembled reinforced concrete U-shaped frame beam |
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| CN106988483A CN106988483A (en) | 2017-07-28 |
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| CN201710411915.5A Expired - Fee Related CN106988483B (en) | 2017-06-05 | 2017-06-05 | A kind of assembled steel reinforced Concrete U Vierendeel girder and its connection steelframe |
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| CN107288218B (en) * | 2017-08-15 | 2023-07-21 | 姚伟华 | Beam column node of assembled reinforced concrete frame structure and manufacturing method thereof |
| CN108661165A (en) * | 2018-05-23 | 2018-10-16 | 江苏无锡二建建设集团有限公司 | Filter beam prefabricated mounting structure and its prefabricated installation method in high-precision filter tank |
| CN108930411A (en) * | 2018-07-26 | 2018-12-04 | 中国二十冶集团有限公司 | A kind of composite beam upper reinforcement wears method |
| CN109296129B (en) * | 2018-10-29 | 2021-06-18 | 南通龙哲混凝土制品有限公司 | Precast beam |
| CN109594679A (en) * | 2018-12-05 | 2019-04-09 | 杭州江润科技有限公司 | Prefabricated assembled wall and construction method |
| CN110042739B (en) * | 2019-03-14 | 2022-02-01 | 河海大学 | Integral cold-formed steel plate U type composite plate beam |
| CN110409711A (en) * | 2019-08-14 | 2019-11-05 | 六安远大住宅工业有限公司 | A kind of Cast-in-situ Beam steel bar arrangement and its construction technology |
| CN110670716A (en) * | 2019-10-11 | 2020-01-10 | 中民筑友科技产业有限公司 | Prefabricated beam type balcony, connection structure of prefabricated beam type balcony and prefabricated wall board and construction method |
| CN111794438B (en) * | 2020-07-10 | 2021-03-23 | 无锡市亨利富建设发展有限公司 | Weight-reducing reinforced composite beam |
| CN114150763A (en) * | 2020-09-07 | 2022-03-08 | 孖垚建筑科技(上海)有限公司 | Connecting piece, beam-column connecting node, beam-column assembly and manufacturing method thereof |
| CN112942679B (en) * | 2021-01-29 | 2023-01-17 | 重庆大学 | Precast concrete frame beam capable of realizing standardization and construction method thereof |
| CN113914333A (en) * | 2021-09-29 | 2022-01-11 | 中国一冶集团有限公司 | Slope protection monomer component, slope protection structure and slope protection construction method |
| CN114311236B (en) * | 2021-12-27 | 2022-10-04 | 宁波蛟川构件有限公司 | Manufacturing die and manufacturing method of assembled reinforced concrete U-shaped frame beam |
| CN117365014A (en) * | 2023-09-11 | 2024-01-09 | 上海宝冶集团有限公司 | Connecting method of upper longitudinal bars and closed stirrups of prefabricated superposed beam |
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| CN108457421B (en) | 2020-05-19 |
| CN108457421A (en) | 2018-08-28 |
| CN106988483A (en) | 2017-07-28 |
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