CN208039628U - Cast-in-place bean column node precast beam reinforced bar connects half grout sleeve component - Google Patents
Cast-in-place bean column node precast beam reinforced bar connects half grout sleeve component Download PDFInfo
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- CN208039628U CN208039628U CN201820374232.7U CN201820374232U CN208039628U CN 208039628 U CN208039628 U CN 208039628U CN 201820374232 U CN201820374232 U CN 201820374232U CN 208039628 U CN208039628 U CN 208039628U
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Abstract
The utility model discloses a kind of cast-in-place bean column node precast beam reinforced bars to connect half grout sleeve component.The half grout sleeve component of the utility model includes half grout sleeve and the unitary nut bolt for being connect with half grout sleeve；Half grout sleeve includes the cylinder of straight, and one end of the cylinder is to set the female end of thread, and the other end is grouting end, the end face outside opening at the grouting end, for being inserted into a horizontal longitudinal reinforcement of Prefabricated superposed beam；The unitary nut bolt includes ontology and sets internal thread and external screw thread on the body, and the internal thread is for the threaded connection with the horizontal longitudinal reinforcement end of another precast beam.The utility model substitutes the full grout sleeve of existing precast beam reinforced bar connection using half grout sleeve component, length and weight reduce nearly half, sleeve price reduction, when beam steel for beam column cast-in-place node connects, requirement to column section length also accordingly reduces, avoid the length dimension for increasing pillar section, low cost.
Description
Technical field
The utility model is related to assembled architecture cast-in-place node precast beam reinforced bar connection areas, especially a kind of for assembling
The precast beam of formula building cast-in-situ bean column node connects the horizontal longitudinal reinforcement of two opposite Prefabricated superposed beams at column interior joint
Half grout sleeve component.
Background technology
Development assembled architecture is the major transformation of mode of construction, be conducive to save resources and energy, reduce construction pollution,
Labor productivity and quality safety level are promoted, construction industry is may advantageously facilitate and industrializes depth integration with informationization, cultivates newly
The new kinetic energy of industry pushes neutralizing superfluous production capacity.Currently, Speed-up Establishment is needed to promote design, construction, the component life of building industrialization
The standards system of the links such as production, accelerates development component, component, the standardization of accessory, generalization and seriation, accelerates to promote
The socialization of the prefabricated and mounting technology application of engineering, reaches the standardized designs of building, factorial praluction, prefabricated construction,
Form the system integration of assembly architecture-integral.
Reinforced concrete buildings are the maximum building types of market accounting, and reinforced concrete frame structure is built in high level
Build, in tier building through frequently with, but due to the standardizing of bar-reinforced concrete member, component, accessory and joint structure, lead to
Slow with the technical progress of seriation with changing, the popularization and application of steel reinforced concrete assembling building suffer from bottleneck.Beams of concrete,
Column be in frame structure building through frequently with structural elements, when two Prefabricated superposed beams column interior joint carry out precast beam water
When flat longitudinal reinforcement connection, usually there are four types of form of architecture joints.The first, using the tension reinforcement of two curb girder of column using upward
90 ° of progress Bar Anchorages of bending, reinforcing steel bars exposed horizontal length are no less than 0.4LabE, and should extend on the outside of column in longitudinal reinforcement
The coincidence length on side, the Bar Anchorage horizontal linear section of two curb girders is more than pillar cross-sectional length -100mm, and the reinforcing bar at node
The reinforcing bar radical increase for anchoring horizontal linear section is twice, according to spacing >=25mm of code requirement anchor bar, if anchoring
The bar spacing of horizontal linear section cannot meet code requirement, node mass defect and safety problem can be caused, if to protect
Bar spacing is demonstrate,proved, and precast beam cross-sectional width size must be increased, causes the increase of cost, while also to carry out both sides precast beam
The dislocation layout design of longitudinal reinforcement, design efforts would and prefabricated manufacture difficulty increase, and standardization level reduces, when beam longitudinal direction steel
When muscle radical is odd number, the asymmetric quality security problem of section steel bar arrangement of precast beam there is also.Second, two pre-
Beam processed installs end anchor head additional using tension reinforcement at cast-in-place node in column and is anchored, and anchor head requires beam steel anchorage length not
It should be less than 0.4LabE, the central axes 5d of column is extended through, installing end anchor head additional using tension longitudinal reinforcement is anchored, same column both sides
Precast beam reinforced bar has certain length coincidence in the horizontal linear section of anchoring, the reinforcing bar root of the Bar Anchorage horizontal linear section at node
It is twice that number, which increases, if the bar spacing of horizontal lap segment or anchor head spacing cannot meet code requirement, can cause node
Mass defect and safety problem, it is same and must to increase prefabricated beam section wide if to ensure bar spacing or anchor head spacing
Size is spent, causes the increase of cost, while also to carry out the dislocation layout design of both sides precast beam longitudinal reinforcement, design efforts would
And prefabricated manufacture difficulty increases, standardization level reduces, and when beam longitudinal reinforcement radical is odd number, equally there is also the steel of beam
Muscle arranges asymmetric quality security problem.The third, tension longitudinal reinforcement connects two precast beams at cast-in-place node in column
Using mechanical connection, i.e. mechanical sleeves connect, and steel bar arrangement does not have to horizontal displacement, do not have to increase beam section width, still, node
The longitudinal reinforcement at place uses mechanical whorl sleeve connection, the necessary exactitude position of two end bars of connection that cannot have error, construction existing
Field can not accomplish, moreover, the screw thread process length of long end bar needs the length for reaching mechanical connection sleeve, to meet precast beam
Lifting requirements, after mechanical sleeves connection is in place, long end bar exposes the exposed threads silk head of certain length, exposed threads silk head
The tensile strength of section will be less than the original tensile strength of reinforcing bar, and the tensile strength of reinforcing bar will be reduced to the tension of exposed threads silk head
Intensity, i.e. reinforcing bar will downgrade use, waste great deal of steel.4th kind, two precast beams use in column at cast-in-place node
The grout sleeve of the horizontal longitudinal reinforcement of precast beam connects, and steel bar arrangement does not have to horizontal displacement, does not have to increase beam section width, is
Meet the requirement that the vertical lifting of the precast beam of pillar both sides is constructed in place, be all made of full grout sleeve connection beam steel at present,
But since full grout sleeve length is larger, for example, connection diameter Ф 25 reinforcing bar, the length about 450mm of full grout sleeve,
The exposed total length of two end bars of connection is greater than 675mm, can cause the pillar cross-sectional length of beam-column joint that must increase ruler
It is very little, increase cost.
The situation present on also increases precast beam unit, the standardized designs of beam-column joint, the difficulty of standardization making
Degree.These there are the problem of so that precast beam assembly concrete frame structure application process by prodigious shadow
It rings, and the volume ratio that flooring Prefabricated superposed beam accounts for prefabricated components is relatively high, the popularization and application of Prefabricated superposed beam are conducive to improve dress
Prefabricated rate with formula building structure, the connection of the horizontal longitudinal reinforcement of beam-column cast-in-place node Prefabricated superposed beam of assembled architecture
The key technology that technology is promoted and applied at prefabricated beams of concrete.
Utility model content
Technical problem to be solved in the utility model and the technical assignment of proposition are to above-mentioned of the existing technology scarce
It is trapped into row to improve and improve, provide a kind of at concrete prefabricated assembly beam column cast-in-place node, it is pre- to be separately connected pillar both sides
Half grout sleeve component of the horizontal longitudinal reinforcement of composite beam processed avoids the length for increasing pillar section to substitute full grout sleeve
Size.
For this purpose, the utility model uses technical solution below：Cast-in-place bean column node precast beam reinforced bar connection is in the milk with half
Sleeve assembly, including half grout sleeve and the unitary nut bolt for being connect with half grout sleeve；
Half grout sleeve includes the cylinder of straight, and one end of the cylinder is to set the female end of thread, another
End is grouting end, the end face outside opening at the grouting end, for being inserted into a horizontal longitudinal reinforcement of Prefabricated superposed beam；
The unitary nut bolt includes ontology and sets internal thread and external screw thread on the body, the internal thread
For the threaded connection with the horizontal longitudinal reinforcement end of another Prefabricated superposed beam, the external screw thread is used for and half grout sleeve
The internal thread of the end of thread connects.
Center pillar section of the half grout sleeve component of the utility model for the beam column built from concrete cast-in-place node of assembled architecture
The horizontal longitudinal reinforcement of one Prefabricated superposed beam is connect by point with the horizontal longitudinal reinforcement of another Prefabricated superposed beam, existing for substituting
The full grout sleeve having.Unitary nut bolt, nuts and bolt is integrated, and structure is simpler, more convenient when assembly.
As the supplement of above-mentioned technical proposal, internal thread front end and the unitary nut bolt of the unitary nut bolt
Inner face flush, formed a straight through-hole.Due to using straight through-hole, unitary nut bolt can all be revolved when use
It is reserved apart from smaller between the two when can make the horizontal longitudinal reinforcement connection of two Prefabricated superposed beams on horizontal longitudinal reinforcement.
As the supplement of above-mentioned technical proposal, it is in positive six side of circumcircle that the outer end of the unitary nut bolt, which forms one,
The outboard end of the spanner operation portion of shape, the grouting end also forms a spanner operation portion in circumcircle regular hexagon.Spanner is grasped
Make portion and drive screwing or unscrewing for unitary nut bolt or half grout sleeve for spanner, operation is more light, conveniently.
As the supplement of above-mentioned technical proposal, the grouting end is opened there are two grout hole, on the inner wall at the grouting end
Multiple annular projections are set.Grout hole is used to increase by half grout sleeve and hinders the friction of mortar for pouring into mortar, annular projection
Power.
As the supplement of above-mentioned technical proposal, the opening of the grouting end end face outside is equipped with the rubber to seal
Plug.
As the supplement of above-mentioned technical proposal, the internal thread length and external thread length of unitary nut bolt are all higher than
In 1.5 times of the horizontal longitudinal reinforcement diameter of thread of beam, the internal thread length of the half grout sleeve end of thread is vertical more than or equal to beam level
To 1.5 times of screw thread steel diameter.
The utility model has the advantage that as follows：
The utility model substitutes existing full grout sleeve using half grout sleeve component, is used for the beam of beam column cast-in-place node
When bar connecting, branch sleeve length, weight reduce nearly half, cost reduction, and the requirement to column section length also accordingly reduces,
It is nearlyr by 1/2 than being reduced using the column section length of full grout sleeve, the length dimension for increasing pillar section is avoided, low cost has
Help standardization, the socialization application of Prefabricated superposed beam column cast-in-place node.
It is existing in beam-column to two reinforcing bars of bar diameter difference level-one that half grout sleeve component can also be used in the utility model
Node is poured to be attached, it is versatile.
Description of the drawings
Fig. 1 is the structural schematic diagram of half grout sleeve component of the utility model；
Fig. 2-3 is the sectional view and side view of the unitary nut bolt in half grout sleeve component of the utility model；
Fig. 4-5 is the sectional view and side view of half grout sleeve in half grout sleeve component of the utility model；
Fig. 6 is that two horizontal longitudinal reinforcements of Prefabricated superposed beam of the utility model screw unitary nut bolt and set respectively
The schematic diagram in place lifted again after into half grout sleeve；
Fig. 7 is that half grout sleeve is screwed on unitary nut bolt after the lifting of the utility model Prefabricated superposed beam is in place
Schematic diagram；
Fig. 8 is minimum length size point of the existing Prefabricated superposed beam bottom reinforcement bars connection using the column section of full grout sleeve
Analyse schematic diagram；
Fig. 9 is minimum of the utility model Prefabricated superposed beam bottom reinforcement bars connection using the column section of half grout sleeve component
Length dimension analyzes schematic diagram.
In figure, 1- unitary nut bolts, 11- ontologies, 12- internal threads, 13- external screw threads；Half grout sleeves of 2-, 21-
Body, the 22- ends of thread, 23- grouting end, 24- grout holes, 25- annular projections；The horizontal longitudinal reinforcement of the left Prefabricated superposed beams of 3-, 4- are right
The horizontal longitudinal reinforcement of Prefabricated superposed beam, the left Prefabricated superposed beams of 5-, the right Prefabricated superposed beams of 6-, 7- columns, the full grout sleeves of 8-.
Specific implementation mode
The utility model is described in further detail with specific implementation mode with reference to the accompanying drawings of the specification.
As shown in Figure 1, the horizontal longitudinal reinforcement of the cast-in-place bean column node precast beam of assembled architecture connects half grout sleeve group
Part, including half grout sleeve 2 and the unitary nut bolt 1 for being connect with half grout sleeve；Half grout sleeve 2 packet
The metal cylinder 21 of straight is included, one end of the cylinder 21 is to set the female end of thread 22, and the other end is grouting end 23, the filling
The end face outside opening for starching end 23, for being inserted into the horizontal longitudinal reinforcement of right Prefabricated superposed beam 4；The unitary nut bolt 1
Including ontology 11 and internal thread 12 on the body and external screw thread 13 are set, the internal thread 12 is used for and left Prefabricated superposed beam water
The threaded connection of 3 end of flat longitudinal reinforcement, the external screw thread 13 with the internal thread of the end of thread 22 for connecting.The integral type
12 front end of internal thread of nut bolt 1 is flushed with the inner face of unitary nut bolt 1, forms straight through-hole.
The outer end of the unitary nut bolt 1 forms a spanner operation portion in circumcircle regular hexagon, the filling
The outboard end at slurry end 23 also forms a spanner operation portion in circumcircle regular hexagon.
The grouting end 23 is opened there are two grout hole 24, and multiple annular projections are arranged on the inner wall at the grouting end 23
25。
If Fig. 2-3 is the sectional view and side view of unitary nut bolt, unitary nut bolt using cast steel material or
Person's section steel material is process.At the cast-in-place column interior joint of prefabricated assembled beam-column, two horizontal longitudinal reinforcements of Prefabricated superposed beam
It is attached by unitary nut bolt and half grout sleeve.The prefabricated overlapping in left side of the cast-in-place column interior joint of assembled beam-column
The horizontal longitudinal reinforcement end of beam is installed before lifting is integrally connected formula nut bolt, and the internal and external screw thread of unitary nut bolt is equal
Using the parameter of standard thread, difference is arranged according to the different-diameter of reinforcing bar in the diameter of the internal and external screw thread of unitary nut bolt
The diameter of model, internal thread is the diameter of thread (i.e. M) for connecting reinforcing bar, and unitary nut bolt is prefabricated with a left side by internal thread
The threaded connection of the horizontal longitudinal reinforcement of composite beam.The right side Prefabricated superposed beam of the cast-in-place column interior joint of assembled beam-column is horizontal longitudinal
For reinforcing bar in lifting protheca into half grout sleeve, the external thread diameter of unitary nut bolt is interior with half grout sleeve that is connected
Diameter is identical, and the external screw thread of unitary nut bolt and the internal thread of half grout sleeve match.The ring of unitary nut bolt
Tee section area will ensure that the tensile strength of jointing, yield strength are more than tensile strength, the yield strength of connection reinforcing bar, and
Break when destruction and is more than area of reinforcement desired value in reinforcing bar outside connector, such as the area of the ring section of unitary nut bolt.One
The internal thread length and external thread length of body formula nut bolt are intended to ensure that the tensile strength of jointing, yield strength are more than company
Break in reinforcing bar outside connector when connecing tensile strength, the yield strength of reinforcing bar, and destroying.Such as：The internal thread of unitary nut bolt
Length and external thread length are all higher than 1.5 times (i.e. 1.5M) equal to the horizontal longitudinal reinforcement diameter of thread of beam.
If Fig. 4-5 is tapped half grout sleeve in one end, material is cast steel or shaped steel, by outside being processed into
The hollow Cast-steel Sleeve or shaped steel sleeve that diameter is identical, the identical circle of internal diameter is elongated.The inner and outer diameter of half grout sleeve according to
The setting of reinforcing bar different-diameter is connected, bar diameter is bigger, and the inner and outer diameter of half grout sleeve is also bigger.Sleeve diameter is bigger, with
The frictional force of mortar in being poured in is bigger, and the power of anchor bar is also bigger.The wall thickness of sleeve is inner and outer diameter difference, according to
It designs and actually detected, the corresponding annular cross-sectional area of wall thickness of half grout sleeve will ensure the tensile strength of jointing, bend
Break in reinforcing bar outside connector, such as annular cross-sectional area when taking tensile strength, yield strength that intensity is more than connection reinforcing bar, and destroying
Also greater than area of reinforcement desired value.The left end of half grout sleeve is the end of thread, internal thread is provided with, using the ginseng of standard thread
Number, the diameter of internal thread is identical as the interior diameter of half grout sleeve, matches with the external screw thread of unitary nut bolt, internal thread
Length to ensure the tensile strength of jointing, yield strength be more than connection reinforcing bar tensile strength, yield strength, and destroy
When break in reinforcing bar outside connector, be arranged according to reinforcing bar different-diameter, such as the internal thread length of the half grout sleeve end of thread is more than etc.
In 1.5 times (i.e. 1.5M) of the horizontal longitudinal reinforcement diameter of thread of beam, and more than or equal to the outer spiral shell of unitary nut bolt
Line length ensures that the external screw thread of unitary nut bolt can be fully screwed into the internal thread of left end of half grout sleeve.Half is in the milk
Sleeve right end is grouting end, and multiple annular projections are arranged in inner wall, increase the frictional resistance to grout and mortar, raised height and number
Amount, grouting end length are arranged according to the reinforcing bar different-diameter of anchoring, that is, in the sleeve at end that is in the milk after injection mortar, mortar and sleeve
The reinforcing bar frictional force of the frictional force of inner wall, mortar and package is greater than the ultimate tensile strength of connection reinforcing bar.Due to steel screw thread
The intensity for connecting reinforcing bar connects the intensity many of reinforcing bar higher than grout sleeve by mortar, half grout sleeve with female end
Length is shorter than full grout sleeve length by nearly 1/2 or so.Sleeve right end is equipped with certain thickness circumcircle hexagon, for special
Half grout sleeve is rotated with spanner, it, can be by the female end precession of half grout sleeve after precast beam placement capital determines in place
The external screw thread of unitary nut bolt, is tightened.
As shown in fig. 6, the half grout sleeve component of the utility model is used for the cast-in-place section of beams of concrete-column of assembled architecture
The king post joint of point needs to cover the horizontal longitudinal reinforcement of column both sides Prefabricated superposed beam by unitary nut bolt and half grouting
Cylinder connects in column at cast-in-place node, prefabricated according to current construction equipment condition and construction handling assembling technique, the left and right sides
The lifting finder of composite beam requires：Prefabricated superposed beam is lifted by crane, Prefabricated superposed beam, adjustment Prefabricated superposed beam end are moved horizontally
Face is aligned in pillar top surface corresponding position, including precast beam axis, precast beam endface position, then slowly vertically puts down in place,
The corresponding longitudinal reinforcement misalignment of axe of the Prefabricated superposed beam of the pillar both sides connected is needed to be in setting range, both sides longitudinal direction steel
The opposite end distance of muscle is regulation spacing, for this handling assembling construction measure requirement, using half filling of the utility model
Sleeve assembly is starched, before Prefabricated superposed beam lifting installation, the shorter exposed steel bar end of thread of the left Prefabricated superposed beam of pillar unloads guarantor
The lightweight nut of shield, so that it may to utilize the hex nut of unitary nut bolt end, by unitary nut bolt according to outer
For screw thread in right end, i.e. towards the direction of half grout sleeve, precession needs the exposed steel bar that precast beam is shorter on the left of the pillar connected
The screw thread of end, and be tightened, expose reinforcing bar end face.It is more than bar diameter certain size using the internal diameter of half grout sleeve
Half grout sleeve is packed into the longer exposed steel bar for the right Prefabricated superposed beam of pillar for needing to connect by characteristic in advance, ensures that half fills
Slurry sleeve can be moved easily left and right in the horizontal direction, and the internal diameter of half grout sleeve is bigger than bar diameter, while also allowing the right
The exposed steel bar axis of Prefabricated superposed beam has certain deviation, this bar connecting mode to fully meet above-mentioned Prefabricated superposed beam and exist
Capital face carries out the requirement of handling assembly program.
As shown in fig. 7, after Prefabricated superposed beam lifting in pillar both sides is in place, as the opposite same row in two precast beam bottoms
When more reinforcing bars need to be attached, processing first is attached to intermediate horizontal longitudinal reinforcement, i.e., by half on intermediate reinforcing bar
Grout sleeve is moved to the left, and packs into the external screw thread of unitary nut bolt, and six side of circumcircle of half grout sleeve is sticked into spanner
Shape by half grout sleeve precession, screws the external screw thread of unitary nut bolt, and corresponding plug sealing end is carried out to the nozzle at end of being in the milk
Measure.Then again to the horizontal longitudinal reinforcement on the both sides in beam bottom portion according to same method and process, with spanner by half grout sleeve
Precession screws unitary nut bolt, and carrying out corresponding plug to the nozzle at end of being in the milk blocks measure, according to the rules, at grouting end
Two grouting mouths connect grouting hoses, mortar is filled into the grout compartment into sleeve, after mortar consolidation, realizes consolidating for connection reinforcing bar
It is fixed.
The utility model can also be used unitary nut and be bolted the steel that half grout sleeve differs bar diameter level-one
Muscle is attached in beam-column cast-in-place node, and the mode of connection is, when the bar diameter of the grouting end connection of half grout sleeve right end
When level-one small compared with end of thread bar diameter, still select half grout sleeve left end, the i.e. larger bar diameter of the end of thread corresponding
Unitary nut is bolted half grout sleeve；And it is the integral type for solving unitary nut and being bolted half grout sleeve left end
The needs of the possible small level-one of bar diameter of nut bolt connection, for the unitary nut bolt of each bar diameter, design
Increasing the unitary nut bolt model of the small level-one of internal thread diameter, i.e. the external thread diameter of unitary nut bolt is constant,
The small level-one of internal thread diameter, i.e. unitary nut bolt wall thickness have corresponding increase, ensure bonding strength requirement.
It is given using the nut of lightweight anticollision material after the completion of screw thread process at the steel bar joint screw end of Prefabricated superposed beam
With protection, such as plastic nut, screw thread steel end is protected not to be damaged in the making of precast beam, transportational process, in precast beam
Before preparing lifting, end reinforced lightweight nut is removed, precession corresponds to the unitary nut bolt of diameter.Unitary nut bolt has
Internal and external screw thread section, it is anti-using lightweight to the external screw thread of unitary nut bolt after unitary nut bolt product completes
Hit material make can open and close folder cylinder protection, such as duroplasts can open and close folder cylinder, i.e., will folder cylinder close at outer spiral shell
On line, external screw thread external screw thread in packaging, transportational process is protected not to be damaged, moreover, before precast beam lifting, by integral type spiral shell
After the end of thread of female bolt precession reinforcing bar, folder cylinder is not still removed, and to open folder cylinder again after both ends precast beam all lifts in place,
It is removed from side.Half grout sleeve has internal thread segment, and in its making, transportational process, internal thread is not easy to be damaged, but is hanging
Damage internal thread of sleeve is possible to during dress is in place.For this purpose, before packing into exposed long reinforcing bar end in half grout sleeve, exposed
Long reinforcing bar end first put on lightweight, flexibility, have certain thickness, length soft circle set, such as plastics soft circle set then will half
Grout sleeve is sleeved on outside plastics soft circle set, and in hoisting process, interior spiral shell will not be damaged by ensureing that half grout sleeve moves left and right
Before half grout sleeve packs into unitary nut bolt, plastics soft circle is covered from both ends after precast beam lifting in both ends is in place for line
It extracts in the gap of reinforcing bar, then by half grout sleeve precession unitary nut bolt, and is tightened.These protection screw threads
Gadget it is recyclable, reuse, reduce cost.By these safeguard measures, ensure that beam-column of assembled architecture is cast-in-place
The quality and peace that the longitudinal reinforcement of beam is threadedly coupled at column interior joint, unitary nut bolt is threadedly coupled with half grout sleeve
Entirely.
By half grout sleeve precession unitary nut bolt, and after screwing, rubber is filled in the grouting end of half grout sleeve
Glue plug blocks, and two grout holes on half grout sleeve connect grouting hose, perfusion mortar, and fill maintenance.Complete beam-
The connection of the horizontal longitudinal reinforcement of Prefabricated superposed beam bottom at column cast-in-place node.
Fig. 8-9 is respectively that the connection of precast beam bottom level longitudinal reinforcement uses full grout sleeve and half grout sleeve component side
The minimum length dimension analysis schematic diagram of the column section of formula.The reinforcing bar of the latter wherein one end passes through screw thread and unitary nut bolt
Connection, unitary nut are bolted and are connect with bush whorl end by external screw thread, the unit length of this bar connecting mode
Pulling test strength is much higher than unit length resistance to plucking of the same diameter reinforcing bar by grout and mortar and grouting end cap cylinder frictional connection mode
Intensity, therefore, unitary nut be bolted half grout sleeve total length be significantly smaller than both ends be all made of grouting connection it is complete
The total length of grout sleeve, because unitary nut bolt and half grout sleeve are in the hoisting process of the precast beam of pillar both sides
It is completely separate, i.e., being bolted half grout sleeve using unitary nut connects reinforcing bar, has and is connected using full grout sleeve
It connects reinforcing bar and similarly carries out precast beam lifting, positioning, the accuracy of splicing, convenience, agility, it is existing to break through assembled beam-column
The limitation of full grout sleeve can only be used by pouring the horizontal longitudinal reinforcement connection of node precast beam.Table 1 is to use different grout sleeves
Approximate analysis is influenced with column section minimum length size, different-diameter reinforcing bar is connected using full grout sleeve and unitary nut bolt
Short grouting set mode is connect, the minimum length size requirement in corresponding pillar section is widely different.Table 1 " uses different grout sleeves
Influence approximate analysis with column section minimum length size " in as can be seen that using unitary nut being bolted half grout sleeve
Length reduces nearly by 1/2, beams of concrete-column cast-in-place node bar connecting for assembled architecture than the length of full grout sleeve
When, the drawbacks of avoiding because of bar connecting, to increase the length dimension in pillar section to keep lifting convenient requirement, drop
Low building structure cost.While unitary nut is bolted half grout sleeve ratio and uses full grout sleeve short, connector sleeve
The weight of cylinder also reduces nearly 1/2, and the cost of sleeve substantially reduces, thus can reduce the cost of assembled architecture.Also it helps
In the standardization of precast beam, the cast-in-place assembly node of column.
Table 1 influences approximate analysis using different grout sleeves and column section minimum length size
It should be noted that listed above is only specific embodiment of the utility model, it is clear that the utility model is not limited to
Above example has many similar variations therewith.If those skilled in the art is from content disclosed by the utility model
All deformations for directly exporting or associating, all should belong to the protection range of the utility model.
Claims (6)
1. cast-in-place bean column node precast beam reinforced bar connects half grout sleeve component, which is characterized in that including half grout sleeve (2)
With the unitary nut bolt (1) for being connect with half grout sleeve；
Half grout sleeve (2) includes the cylinder (21) of straight, and one end of the cylinder (21) is to set female screw thread
It holds (22), the other end is grouting end (23), the end face outside opening at the grouting end (23), for being inserted into a Prefabricated superposed beam water
Flat longitudinal reinforcement；
The unitary nut bolt (1) includes ontology (11) and sets internal thread (12) on the body and external screw thread (13),
The internal thread (12) is for the threaded connection with the horizontal longitudinal reinforcement end of another Prefabricated superposed beam, the external screw thread
(13) it is used to connect with the internal thread of the end of thread (22).
2. cast-in-place bean column node precast beam reinforced bar according to claim 1 connects half grout sleeve component, feature exists
In internal thread (12) front end of the unitary nut bolt (1) is flushed with the inner face of unitary nut bolt (1), is formed
One straight through-hole.
3. cast-in-place bean column node precast beam reinforced bar according to claim 1 connects half grout sleeve component, feature exists
In the outer end of the unitary nut bolt (1) forms a spanner operation portion in circumcircle regular hexagon, the grouting end
(23) outboard end also forms a spanner operation portion in circumcircle regular hexagon.
4. cast-in-place bean column node precast beam reinforced bar according to claim 1,2 or 3 connects half grout sleeve component, special
Sign is, the grouting end (23) is opened there are two grout hole (24), and multiple ring-types are arranged on the inner wall of grouting end (23)
Raised (25).
5. cast-in-place bean column node precast beam reinforced bar according to claim 1,2 or 3 connects half grout sleeve component, special
Sign is that the opening of described grouting end (23) end face outside is equipped with the rubber plug to seal.
6. cast-in-place bean column node precast beam reinforced bar according to claim 1,2 or 3 connects half grout sleeve component, special
Sign is that the internal thread length and external thread length of unitary nut bolt are all higher than equal to the horizontal longitudinal reinforcement diameter of thread of beam
1.5 times, the internal thread length of the half grout sleeve end of thread is more than or equal to 1.5 times of the horizontal longitudinal reinforcement diameter of thread of beam.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820374232.7U CN208039628U (en) | 2018-03-20 | 2018-03-20 | Cast-in-place bean column node precast beam reinforced bar connects half grout sleeve component |
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| CN201820374232.7U CN208039628U (en) | 2018-03-20 | 2018-03-20 | Cast-in-place bean column node precast beam reinforced bar connects half grout sleeve component |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252458A (en) * | 2018-03-20 | 2018-07-06 | 浙江省建筑科学设计研究院有限公司 | The cast-in-place connection of bean column node precast beam reinforced bar half grout sleeve component and its application |
| CN113446292A (en) * | 2021-07-23 | 2021-09-28 | 上海电气风电集团股份有限公司 | Connecting assembly for tower barrel, tower barrel and fan assembly |
-
2018
- 2018-03-20 CN CN201820374232.7U patent/CN208039628U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252458A (en) * | 2018-03-20 | 2018-07-06 | 浙江省建筑科学设计研究院有限公司 | The cast-in-place connection of bean column node precast beam reinforced bar half grout sleeve component and its application |
| CN113446292A (en) * | 2021-07-23 | 2021-09-28 | 上海电气风电集团股份有限公司 | Connecting assembly for tower barrel, tower barrel and fan assembly |
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