CN106988483A - A kind of assembled steel reinforced Concrete U Vierendeel girder and its construction method - Google Patents

A kind of assembled steel reinforced Concrete U Vierendeel girder and its construction method Download PDF

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CN106988483A
CN106988483A CN201710411915.5A CN201710411915A CN106988483A CN 106988483 A CN106988483 A CN 106988483A CN 201710411915 A CN201710411915 A CN 201710411915A CN 106988483 A CN106988483 A CN 106988483A
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plate
muscle
place
shaped
frame
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CN106988483B (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 construction method, 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 two ends that muscle (13) stretches out beam, and just to beam-ends, first vertical muscle is being longer than other vertical muscle 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 construction;U-frame is set a roof beam in place with good strength and stiffness, will not be ftractureed in lifting is carried;The set a roof beam in place bottom plate of two 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, with extensively popularizing application prospect.

Description

A kind of assembled steel reinforced Concrete U Vierendeel girder and its construction method
Technical field
The present invention relates to the girder construction in building field, belong to construction material and technical field of building construction, particularly relate to And a kind of assembled steel reinforced Concrete U Vierendeel girder and its construction method.
Background technology
Prefabricated concrete structure, refers to the coagulation being assembled by precast concrete by reliable connected 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, post, balcony, stair, awning etc..
Traditional house building technology low production efficiency, speed of application are slow, construction period length, high material consumption and workman's labor Fatigue resistance is big, and a series of this situation has not adapted to rigid demand of the modern society to house.And assembled architecture have it is following Feature:1. variation is designed, can be designed according to housing need;2. function is modernized, and can use a variety of energy-conserving and environment-protective Deng new material;3. manufacturing works, can cause building components and fittings to unify factorial praluction, accomplish without any letup;4. construction assembling Change, labor cost can be substantially reduced, reduce waste of material, part work high above the ground is arranged in into ground completes;5. the time is most Optimization, significantly shortens construction period.Assembled architecture is focused on to environment, the protection of resource, is effectively reduced in its work progress Sewage, pernicious gas, the discharge of dust and the pollution of construction noise are built, various shadows of the construction to surrounding enviroment are reduced Ring, be conducive to improve build labor productivity, promote design, building become more meticulous, lifted building total quality and energy-conservation 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, because reinforcing bar is mixed 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.Current assembled steel tendon concrete frame structure is asked in node point connection in the presence of many Topic and difficulty, longitudinal reinforcement can collide with each other and mutually relative top, and mutually at bean column node when such as framework solid beam is installed Vertical beam bottom indulge muscle and be difficult to through causing beam bottom first row to indulge muscle and be pressed in another beam bottom second normal thereto and arrange above 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 as the construction plank of reinforced beam, the part for also serving as structure participates in cooperation;Not only contribute to save big The construction formwork and its workload of amount, improve efficiency of construction, reduce labour, realize cross-operation, reduce construction cost, it is ensured that Construction quality;And can economize on resources and the energy, environmental protection promotes 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, and the internal-rib of shell ensure that premanufactured skin Core concrete is poured with after being capable of reliable bond, cooperation.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 two ends, and interior side form is arranged on interior The both sides of bed die, interior side form is fixed by connecting rod and is integral, and outer side mold, the bottom 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, has inwardly projecting internal-rib with bottom surface sideways and inner surface is in recessed Convex, stirrup is cast in internal-rib, and internal-rib is perpendicular rib, U-shaped premanufactured skin inner surface concave-convex surface and with internal-rib, makes U-shaped prefabricated Core concrete and the reliable bond of premanufactured skin and cooperation that shell is poured after can ensureing well, fastness and reliable Property is higher, simple in construction, practical, with 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 has following lack Point:One is U-shaped beam without longitudinal reinforcement, it will cause U-shaped beam carrying, 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, thickness too it is thin be difficult to concrete perfusion and being difficult to vibrate it is close It is real, can cause quality defect of concrete, three be beams of concrete bottom plate indulge muscle not with stirrup colligation, and beams of concrete both sides Longitudinal anti-torsional structure in portion indulge muscle not with stirrup colligation, it is impossible to form a firm framework of steel reinforcement, four be beams of concrete bottom Portion's first row indulges muscle and two middle side parts indulge muscle and contact not close with precast concrete, 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 to overcome the deficiencies in the prior art, solves the precast concrete beam shell provided in the prior art In stirrup can not be with indulging muscle colligation in beam and the problem of can not form an overall framework of steel reinforcement, precast concrete beam shell is not The vertical muscle in the problem of premanufactured skin stress ftractures, precast concrete beam shell can be overcome closely to be engaged with concrete to bond The problem of power is not good, concrete is difficult to vibration compacting and causes asking for quality defect of concrete when precast concrete beam shell is constructed Topic, while the solution framework beam connection of beam steel and anchorage problem at concrete frame joint is assembled steel reinforced mixed there is provided one kind 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 to configure anti-torsional structure in Vierendeel girder bottom first row longitudinal reinforcement, side plate Vertical muscle, beam periphery is furnished with stirrup, stretches 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 two ends, and first vertical muscle from right to left just all to 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 passed.
On this basis, further technical scheme is:A kind of mould for making assembled steel reinforced Concrete U Vierendeel girder Tool, the mould includes:The thin steel tank internal model of outer side mold, beam-ends outer baffle, U-shaped, end mould u tie, external mold pull bar, sleeve pipe, U-shaped are recessed Groove;The thin steel tank internal model of 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 27 that muscle is passed through or is pressed into, and bottom plate is indulged muscle and is embedded in the U-shaped groove 27;In the thin steel tank internal model of U-shaped Fill up sand;Periphery is vertically provided with stirrup in the thin steel tank internal model of the U-shaped;The U-shaped groove correspondence stirrup position insertion In the basic unit of place;Anti-torsional structure is provided between the thin steel tank internal model of U-shaped and outer side mold and indulges muscle and colligation;The thin steel of U-shaped Muscle and tied up with stirrup equivalent to being indulged in assembled steel reinforced Concrete U Vierendeel girder base plate thickness space equipped with bottom plate on groove internal model top Prick;Reinforcing bar pin is inserted in sand in the U-shaped sheet metal internal model, reinforcing bar pin exposed parts length is less than base plate thickness, greatly In the 1/2 of base plate thickness.
Further, the thin steel tank internal model of the U-shaped is made of sheet metal or duroplasts, and both sides inwall is provided with and the material such as iron wire Expect the shackle being fixedly connected.
Further, wide run through along the main body of the mould to being vertically installed with the sleeve pipe that some confession external mold pull bars and sleeve pipe run through Hole, the sleeve pipe through hole runs through two layers of outer side mold and the thin steel tank internal model two side of U-shaped;Described sleeve pipe is arranged on the sleeve pipe through hole It is interior;The external mold pull bar is Screw arbor with nut at both-ends, through sleeve pipe, after the shimming of both sides, is fastened and fixed with corresponding nut.
Further, the sleeve pipe in the thin steel tank internal model of the U-shaped is made up of flexible material.
Further, the particle diameter of the sand should be less than 5mm.
On this basis, further technical scheme is:One kind is used to connect the assembled steel reinforced Concrete U framework of anchoring The connection steelframe of beam bean column node, it is characterised in that the U-frame around the connection steelframe and node set a roof beam in place stretching bottom plate indulge 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 a part of again extension anchorage length.
Further, the connection steelframe is made using angle steel, and indulging muscle with the bottom plate of the bottom plate outer end is spliced into " well " word Shape.
Further, the connection steelframe is in " windmill " shape, is made up of 4 long angle steel and at least 1 angle clip, the long angle Four sides of " mouth " word are welded to each other steel in the middle of " 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 in the middle of bottom plate outer end.
On this basis, further technical scheme 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 are stretched out U-frame for stirrup and set a roof beam in place The height on side plate top, stirrup is inserted in U-shaped groove, and sand is poured into the U-shaped groove void part and is put down with place basic unit, Bottom plate is penetrated in stirrup and indulges muscle and the vertical muscle of anti-torsional structure, and it is firm with stirrup colligation;
S03, the thin steel tank internal model of U-shaped is penetrated in stirrup;Outer side mold and beam-ends outer baffle are assembled, with external mold pull bar, sleeve pipe, pad Piece, nut fix outer side mold, and beam-ends outer baffle is fixed with end mould u tie and u tie fixture;
S04, in the thin steel tank internal model of U-shaped fill fill out fine sand, suitably sprinkle water and consolidate;
Perfusion is mixed at the top of S05, the aerial concrete perfusion of folder constituted in outer side mold and the thin steel tank internal model of U-shaped, the thin steel tank internal model of U-shaped Solidifying soil is extremely concordant with the top of outer side mold, and is consolidated with vibrating head;
S06, setting and hardening is placed, until form removal and conserved when meeting form removal condition;
S07, U-frame concrete of setting a roof beam in place reach after design strength that upset of leaning to one side is kept flat, and finished product protection is carried out after acceptance(check) and waits to pacify Dress;
S08, U-frame is propped up in engineering site and has set a roof beam in place support, elevation control and orientation axis, U-frame is lifted successively and is set a roof beam in place to finger Positioning is put, and 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 it to be subjected to displacement Tilt;
S09, the bottom plate for stretching that U-frame sets a roof beam in place indulge muscle and are connected steelframe and weld, and it is qualified to inspect for acceptance;
S10, set a roof beam in place laying Vierendeel girder bottom second row and above row's cast in place reinforced bar in groove in U-frame, laying framework back is cast-in-place Reinforcing 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, sleeve pipe should be put when wearing external mold pull bar, is removed with facilitating after completion.
Further, in step S04, the thin steel tank internal model madial wall of U-shaped is provided with take-up device, for tensing both sides Wall, keeps two side parallel and spacing, the thin steel tank internal model side wall of U-shaped is outward-dipping when preventing from filling sand.
It is preferred that, the take-up device is to be connected between shackle, shackle with iron wire.
Further, in step S04, put stragith edge in advance in the thin steel tank internal model of U-shaped and wear iron wire to beam two ends.
Further, in step S05, when muscle is indulged in concreting 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:Beginning mould u tie is solved, beam-ends outer baffle is taken off, unties outer die drawing Bar, outer side mold is taken off, pulls stragith edge to pull sand in the sandpit at beam two ends, extract the thin steel tank internal model of U-shaped out.
Beneficial effects of the present invention.
1st, the prefabricated U-shaped rc-frame-beam shape that the present invention is provided, the prefabricated U-shaped Vierendeel girder is furnished with stirrup, hoop Muscle is higher by U-frame and set 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, firmly, bottom plate indulges muscle and stretches out beam two ends, wherein all first vertical muscle or institutes from right to left for colligation between stirrup and vertical muscle Have from left to right first vertical muscle stretch 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 again simple less, and easy construction is very practical, U-frame Set a roof beam in place with good strength and stiffness, will not be ftractureed in lifting is carried, with extensively popularizing application prospect.U-frame frame The bottom plate that beam two 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 individual horizontal plane, will not be answered back to mutually between reinforcing bar, be collapsed, the anchoring for not only the having strengthened reinforcing bar but also anchoring for extending reinforcing bar is long 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, the technical scheme used is that the bottom and both sides of beam are made into 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 two ends.It is existing Install assembling when, by the U-frame of surrounding at frame joint set a roof beam in place stretching bottom plate indulge muscle be 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 be stretched 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 advance Concrete contact processed is not close, and concrete is engaged not good defect 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, the technical scheme used is that reinforcing bar is matched somebody with somebody for Vierendeel girder bottom in prefabricated " u "-shaped Vierendeel girder bottom One row's longitudinal reinforcement, i.e. bottom plate, which are indulged, configures the vertical muscle of anti-torsional structure and beam periphery with stirrup in muscle, side plate, periphery stirrup stretches out U-shaped Vierendeel girder side plate top, so indulging muscle can be with stirrup colligation and vertical muscle, laterally reinforced concrete pour one, reinforcing bar and concrete simultaneously It is in close contact bond stress strong, vertical muscle bears bending stress, and stirrup bears shear stress, U-shaped beams of concrete is not ftractureed.U-frame Bottom plate of setting a roof beam in place is indulged muscle and stretched out from two ends in concrete frame joint anchor connection.
4th, in order to overcome the vertical muscle of bottom plate at precast reinforced concrete frame node mutually to collide juxtaposition, the present invention is used One node connects steelframe, and the technical scheme used is to connect steelframe for small shaped steel, and such as L40x5 is welded, and 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 and be connected steelframe welding, and the different length of vertical muscle of beam-ends bottom stretching can arrange to face beam-ends from right to left or from left to right First is longer vertical muscle, and remaining vertical muscle is that the termination that connection steelframe stretches out is away from post side >=60mm, it is ensured that post indulges muscle compared with bar dowel It is unaffected.Because 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 had not only added anchorage head but also had extended connection on same angle steel.Connect steelframe rigidly good, do not have There is the steel bar welding of alignment on connection steelframe, be end reinforced anchorage head, while also extending 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 Cause the defect of concrete quality problem, the present invention sets 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 mould structure schematic 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 structural representation that the embodiment of the present invention 3,4 is used to make the mould of assembled steel reinforced Concrete U Vierendeel girder Figure;
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 to make template assemblies when assembled steel reinforced Concrete U Vierendeel girder is inverted construction in the embodiment of the present invention 3,4 to illustrate Figure;
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 signal Figure;
Fig. 9 is that U-frame is set a roof beam in place configuration reinforcement in groove after the assembling of the assembled steel reinforced Concrete U Vierendeel girder of the embodiment of the present invention 6 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 the vertical muscle of muscle, 131- length, 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- sleeve pipes through hole, 23- beam-ends outer baffle, 24- ends mould u tie, 25- external molds pull bar, 26- sleeve pipes, 27-U shapes are recessed Groove, 28- pads, 29- nuts, 30-U shape hoops fixture, 41- places basic unit, 42- sands, 50- connections steelframe, the long angle steel of 501-, The weld seam between weld seam, 504- angle clips and long angle steel, 61- cast in place reinforced bar, 62- between the long angle steel of 502- angle clips, 503- 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 and side Bottom plate is configured with plate 12, bottom plate 11 and indulges muscle 13, is that configuration anti-torsional structure is indulged in Vierendeel girder bottom first row longitudinal reinforcement, side plate 12 Muscle 14, beam periphery is furnished with stirrup 15, stretches out the top of side plate 12, bottom plate 11 and the thickness of side plate 12 meet reinforcing bar Minimal Protective thickness will Ask and plate minimum thickness requirement.The bottom plate indulges the two ends that muscle 13 stretches out beam, and first vertical muscle from right to left just all to beam-ends is long In other vertical muscle;The bottom plate 11 inwardly stretches out several reinforcing bar pins 16, prefabricated U-shaped Vierendeel girder is poured recessed with after well Concrete 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, it is described 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, and anti-torsional structure indulges muscle 14 keep connection.Assembled steel reinforced Concrete U Vierendeel girder is girder in Fig. 2, and secondary beam is shelved on the girder, and girder bottom is than secondary Beam bottom is low, and girder beam bottom plate 11 is not turned off.The width of gap 17 can accommodate secondary beam and penetrate taking-up.
Embodiment 3:
As seen in figures 3-6, a kind of mould for making assembled steel reinforced Concrete U Vierendeel girder described in Examples 1 and 2 of the invention Tool, the mould includes: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 bar 25, set Pipe 26, U-shaped groove 27;The thin steel tank internal model 22 of U-shaped, outer side mold 21, beam-ends outer baffle 23 and end mould u tie 24 are combined into down The U-frame put 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;In the U The thin steel tank internal model 22 of shape is vertically provided with stirrup 15 to periphery;The correspondence stirrup 15 of the U-shaped groove 27 position insertion place basic unit In 41;Anti-torsional structure is provided between the thin steel tank internal model 22 of U-shaped and outer side mold 21 and indulges muscle 14 and colligation;The thin steel of U-shaped The top of groove internal model 22 equivalent in the assembled steel reinforced thickness space of Concrete U Vierendeel girder bottom plate 11 equipped with bottom plate indulge muscle 13 and with The colligation of stirrup 15;Reinforcing bar pin 16 is inserted in sand 42 in the U-shaped sheet metal internal model, the exposed parts length of reinforcing bar pin 16 is small In the thickness of bottom plate 11, more than the 1/2 of the thickness of bottom plate 11.
As shown in figure 4, the beam-ends outer baffle 23 compresses the termination of outer side mold 21 and the thin termination of steel tank internal model 22 of U-shaped, top The correspondence position of muscle 13 is indulged with bottom plate and is provided with the U-shaped groove 27 for passing through or being pressed into for the vertical muscle 13 of bottom plate, 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 inwall is provided with and iron The shackle 221 that the materials such as silk are fixedly connected.
Embodiment 4:
It is of the invention a kind of to make assembled steel reinforced Concrete U Vierendeel girder described in Examples 1 and 2 as shown in Fig. 4 and Fig. 6 Mould, be on the basis of embodiment 3, it is wide to being vertically installed with some confession external mold pull bars 25 and sleeve pipe 26 along the main body of the mould The sleeve pipe through hole 222 run through, the sleeve pipe through hole 222 runs through two layers of outer side mold 21 and the thin two side of steel tank internal model 22 of U-shaped;Institute Sleeve pipe 26 is stated in the sleeve pipe through hole 222;The external mold pull bar 25 is Screw arbor with nut at both-ends, through sleeve pipe 26, both sides cushioning After piece 28, it is fastened and fixed with corresponding nut 29.
Embodiment 5:
As shown in fig. 7, a kind of connection steelframe for being used to connect the anchoring rc-frame-beam node of embodiments of the invention 1, The set a roof beam in place bottom plate of stretching of the connection steelframe 50 and the U-frame around node is indulged muscle 13 and welded, and U-frame bottom plate of having set a roof beam in place had been indulged muscle 13 both It can again play a part of extending anchorage length as mechanical anchor head;The connection steelframe 50 is in " windmill " shape, by 4 long angle steel 501 and at least 1 angle clip 502 constitute, indulging muscle 13 with the bottom plate of the outer end of bottom plate 11 is spliced into " well " font;The long angle Four sides of the steel 501 along " mouth " word in the middle of " well " font are welded to each other, and it is corresponding to indulge muscle 131 with the length of the outer end of bottom plate 11;Institute Angle clip 502 is stated to be welded on the side of connection steelframe 50, it is corresponding with the short vertical muscle 132 in the middle of the outer end of bottom plate 11.
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, including The making of the assembled steel reinforced Concrete U Vierendeel girder and installation method, are operated as follows:
S01, in smooth place basic unit 41 snap the line, determine the position line of stirrup 15, determine that U-frame is set a roof beam in place the side of biside plate 12 Line;
S02, the insertion U-shaped groove of place basic unit 41 27 at the position line of stirrup 15, the depth of U-shaped groove 27 is stretched out for stirrup 15 U-frame set a roof beam in place side plate 12 top height, stirrup 15 is inserted in U-shaped groove 27, sand is poured into the void part of U-shaped groove 27 Son 42 is flat with place basic unit 41, and bottom plate is penetrated in stirrup 15 and indulges muscle 13 and the vertical muscle 14 of anti-torsional structure, and firm with the colligation of stirrup 15 Gu;
S03, the thin steel tank internal model 22 of U-shaped is penetrated in stirrup 15;Outer side mold 21 and beam-ends outer baffle 23 are assembled, external mold pull bar is used 25th, sleeve pipe 26, pad 28, nut 29 fix outer side mold 21, are fixed outside beam-ends and kept off with end mould u tie 24 and u tie fixture 30 Plate 23;Sleeve pipe 26 should be put when wearing external mold pull bar 25, is removed with facilitating after completion;
S04, in the thin steel tank internal model 22 of U-shaped fill fill out fine sand, suitably sprinkle water and consolidate;Pre- put is scraped in the thin steel tank internal model 22 of U-shaped Sand plate simultaneously wears iron wire to beam two ends;The thin madial wall of steel tank internal model 22 of U-shaped is provided with take-up device, for tensing two side, protected Hold that two side is parallel and spacing, the thin side wall of steel tank internal model 22 of U-shaped is outward-dipping when preventing from filling sand.The take-up device is preferably hook Connected between ring 221, shackle 221 with iron wire;
S05, the aerial concrete perfusion of folder constituted in outer side mold 21 and the thin steel tank internal model 22 of U-shaped, the thin top of steel tank internal model 22 of U-shaped are filled Note concrete extremely concordant with the top of outer side mold 21, and consolidated with vibrating head;It is vertical to insert when muscle 13 is indulged in concreting to bottom plate Enter bar dowel, the reinforcing bar pin 16 of pouring concrete after being set a roof beam in place as U-frame in groove;
S06, setting and hardening is placed, until form removal and conserved when meeting form removal condition;Form removal order be:Solution beginning mould u tie 24, Beam-ends outer baffle 23 is taken off, external mold pull bar 25 is untied, takes off outer side mold 21, the sandpit for pulling stragith edge that sand is pulled in beam two ends In, extract out the thin steel tank internal model 22 of U-shaped;
S07, U-frame concrete of setting a roof beam in place reach after design strength that upset of leaning to one side is kept flat, and finished product protection is carried out after acceptance(check) and waits to pacify Dress;
S08, U-frame is propped up in engineering site and has set a roof beam in place support, elevation control and orientation axis, U-frame is lifted successively and is set a roof beam in place to finger Positioning is put, and 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 from occurring Displacement deflection;
S09, the bottom plate for stretching that U-frame sets a roof beam in place are indulged muscle 13 and welded with being connected steelframe 50, and it is qualified to inspect for acceptance;As shown in figure 8, 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 be used for Bottom plate 11 only has row's bottom plate to indulge the connection that solid beam-ends during muscle 13 stretches out reinforcing bar;
S10, set a roof beam in place laying Vierendeel girder bottom second row and above row's cast in place reinforced bar 61 in groove in U-frame, laying framework back shows Pour reinforcing bar 61 and be attached thereto the cast in place reinforced bar 61 of component, hidden project inspection acceptance(check) after-pouring cast-in-place concrete 62.Such as Shown in Fig. 9, as U-frame U-frame after assembling of setting a roof beam in place is set a roof beam in place configuration cast in place reinforced bar 61 and the structure of cast-in-place concrete 62 in groove.
It is described above, only it is presently preferred embodiments of the present invention, and be not used to the interest field of the limitation present invention.It is any with this The technical scheme that the interest field that claim is covered is implemented, or any those skilled in the art, are utilized The method content of the disclosure above makes the scheme of many possible variations and modification, belongs to protection scope of the present invention.

Claims (10)

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 two ends that muscle (13) stretches out beam, and just to all right sides of 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.
2. a kind of 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).
3. a kind of 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 (17) passed perpendicularly through for secondary beam, 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 passed.
4. a kind of making mould of assembled steel reinforced Concrete U Vierendeel girder as claimed in claim 1, including:Outer side mold (21), the thin steel tank internal model (22) of beam-ends outer baffle (23), U-shaped, end mould u tie (24), external mold pull bar (25), sleeve pipe (26), U-shaped Groove (27);The thin steel tank internal model (22) of U-shaped, outer side mold (21), beam-ends outer baffle (23) and end mould u tie (24) are combined into Inverted U-frame is set a roof beam in place mould;The beam-ends outer baffle (23) compresses outer side mold (21) termination and thin steel tank internal model (22) end of U-shaped Muscle (13) correspondence position is indulged with bottom plate and is provided with the U-shaped groove (27) for passing through or being pressed into for the vertical muscle (13) of bottom plate, bottom plate in head, top Vertical muscle (13) is embedded in the U-shaped groove (27);Sand (42) is filled up in the thin steel tank internal model (22) of U-shaped;It is thin in the U-shaped Steel tank internal model (22) is vertically provided with stirrup (15) to periphery;U-shaped groove (27) correspondence stirrup (15) position insertion place Basic unit (41) is inner;Anti-torsional structure is provided between the thin steel tank internal model (22) of U-shaped and outer side mold (21) and indulges muscle (14) and colligation; Thin steel tank internal model (22) top of U-shaped in assembled steel reinforced Concrete U Vierendeel girder bottom plate (11) thickness space equivalent to matching somebody with somebody Have bottom plate indulge muscle (13) and with stirrup (15) colligation;Insertion reinforcing bar pin in sand (42) in the U-shaped sheet metal internal model (16), reinforcing bar pin (16) exposed parts length is less than bottom plate (11) thickness, more than the 1/2 of bottom plate (11) thickness.
5. a kind of making mould of assembled steel reinforced Concrete U Vierendeel girder as claimed in claim 4, it is characterised in that:Institute State the thin steel tank internal model (22) of U-shaped to be made of sheet metal or duroplasts, both sides inwall is provided with the shackle being fixedly connected with iron wire (221)。
6. a kind of making mould of assembled steel reinforced Concrete U Vierendeel girder as claimed in claim 4, it is characterised in that:Edge The main body of the mould is wide to being vertically installed with the sleeve pipe through hole (222) that some confession external mold pull bars (25) and sleeve pipe (26) run through, The sleeve pipe through hole (222) runs through two layers of outer side mold (21) and thin steel tank internal model (22) two side of U-shaped;Described sleeve pipe (26) is installed In the sleeve pipe through hole (222);The external mold pull bar (25) is Screw arbor with nut at both-ends, through sleeve pipe (26), both sides shimming (28) Afterwards, it is fastened and fixed with corresponding nut (29).
7. a kind of assembled steel reinforced Concrete U Vierendeel girder bean column node connection anchoring connection steel as claimed in claim 1 Frame, it is characterised in that the U-frame around the connection steelframe (50) and node set a roof beam in place stretching bottom plate indulge muscle (13) welding.
8. a kind of assembled steel reinforced Concrete U Vierendeel girder bean column node connection anchoring connection steel as claimed in claim 7 Frame, it is characterised in that the connection steelframe (50) is made using angle steel, indulges muscle (13) with the bottom plate of the bottom plate (11) outer end and spells It is connected into " well " font.
9. a kind of assembled steel reinforced Concrete U Vierendeel girder bean column node connection anchoring connection steel as claimed in claim 8 Frame, it is characterised in that the connection steelframe (50) is in " windmill " shape, by 4 long angle steel (501) and at least 1 angle clip (502) Constitute, four sides of the long angle steel (501) along " mouth " word in the middle of " well " font are welded to each other, the length with bottom plate (11) outer end Vertical muscle (131) is corresponding;The angle clip (502) is welded on connection steelframe (50) side, in the middle of bottom plate (11) outer end Short vertical muscle (132) it is corresponding.
10. a kind of construction method of assembled steel reinforced Concrete U Vierendeel girder as claimed in claim 1, including the assembled Making and installation method that armored concrete U-frame is set a roof beam in place, are operated as follows:
S01, in smooth place basic unit (41) snap the line, determine stirrup (15) position line, determine that U-frame is set a roof beam in place biside plate (12) Sideline;
S02, basic unit's insertion U-shaped groove (27) at stirrup (15) position line, the depth of U-shaped groove (27) are stretched for stirrup (15) Go out U-frame set a roof beam in place side plate (12) top height, stirrup (15) is inserted in U-shaped groove (27), in U-shaped groove (27) void Part pours into sand (42) and put down with place basic unit (41), and the vertical muscle (13) of bottom plate is penetrated in stirrup (15) and anti-torsional structure indulges muscle (14) it is, and firm with stirrup (15) colligation;
S03, penetrate the thin steel tank internal model (22) of U-shaped in the stirrup (15);Outer side mold (21) and beam-ends outer baffle (23) is assembled, with outer The fixed outer side mold (21) of die drawing bar (25), sleeve pipe (26), pad (28), nut (29) is solid with end mould u tie (24) and u tie Determine the fixed beam-ends outer baffle (23) of part (30);
S04, fill in the thin steel tank internal model (22) of U-shaped and fill out fine sand, suitably sprinkle water and consolidate;
S05, the aerial concrete perfusion of folder constituted in outer side mold (21) and the thin steel tank internal model (22) of U-shaped, the thin steel tank internal model of U-shaped (22) top concrete perfusion is extremely concordant with the top of outer side mold (21), and is consolidated with vibrating head;
S06, setting and hardening is placed, until form removal and conserved when meeting form removal condition;
S07, U-frame concrete of setting a roof beam in place reach after design strength that upset of leaning to one side is kept flat, and finished product protection is carried out after acceptance(check) and waits to pacify Dress;
S08, U-frame is propped up in engineering site and has set a roof beam in place support, elevation control and orientation axis, U-frame is lifted successively and is set a roof beam in place to finger Positioning is put, and the set a roof beam in place bottom plate of stretching of U-frame is indulged muscle (13) and is placed in 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 indulge muscle (13) and are connected steelframe (50) and weld, and it is qualified to inspect for acceptance;
S10, set a roof beam in place laying Vierendeel girder bottom second row and above row's cast in place reinforced bar (61) in groove in U-frame, lay framework back 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 concrete.
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