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 PDF

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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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plate
muscle
vierendeel girder
concrete
place
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CN106988483A (en
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姚伟华
姚芳辉
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姚芳辉
姚伟华
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293Joists; 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G13/00Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • E04G13/04Falsework, 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

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

A kind of assembled steel reinforced Concrete U Vierendeel girder and its connection steelframe
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.
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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
CN109296129A (en) * 2018-10-29 2019-02-01 南通龙哲混凝土制品有限公司 A kind of precast beam and its construction method
CN109594679A (en) * 2018-12-05 2019-04-09 杭州江润科技有限公司 Prefabricated assembled wall and construction method
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