CN207846656U - A kind of strong ties construction of assembled vertical member and basis - Google Patents

A kind of strong ties construction of assembled vertical member and basis Download PDF

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Publication number
CN207846656U
CN207846656U CN201721928269.1U CN201721928269U CN207846656U CN 207846656 U CN207846656 U CN 207846656U CN 201721928269 U CN201721928269 U CN 201721928269U CN 207846656 U CN207846656 U CN 207846656U
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vertical
grout sleeve
concrete
prefabricated
basis
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CN201721928269.1U
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徐其功
李娜
毛娜
陈春晖
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Guangdong Architectural Design Institute of the Department of Construction Co., Ltd.
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Guangdong Architectural Design Institute Of Department Of Construction Co Ltd
Guangdong Provincial Academy of Building Research Group Co Ltd
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Abstract

The utility model discloses the strong ties constructions of a kind of assembled vertical member and basis, for the protruding bar being connected by the same grout sleeve and vertical muscle, it is more than the protruding bar of vertical muscle by using diameter, under the premise of realizing the rwo connection using grout sleeve, realize the strong ties of the connecting node between cast-in-situ steel reinforced concrete basis and armored concrete Prefabricated vertical member, it ensure that connecting node region steel bar anchoring can be transmitted effectively, and make building when meeting with rarely occurred earthquake, plastic hinge can be generated in the upper area of aforementioned connecting node, vertical member bottom and the junction reinforcing bar on basis is avoided to have no the generation brittle break of sign when meeting with rarely occurred earthquake, keep fabricated construction safer, it ensure that the performance that structure ductility destroys.The utility model has the advantages that frame structure holistic resistant behavior can be improved and raising tensility shock-resistant performance, construction efficiency height, construction quality are good.

Description

A kind of strong ties construction of assembled vertical member and basis
Technical field
The utility model is related to the strong ties constructions of a kind of assembled vertical member and basis.
Background technology
Prefabricated assembling type reinforced concrete structure the developed countries such as America and Europe, Japan had more practical application and More mature technical research.In recent years, national development green building greatly develops assembled architecture, promotes construction industry transition Upgrading.With the quickening of China " building industrialization, housing industrialization " process, the application of fabricated construction building is increasingly extensive, The practical application and theoretical research that the country builds fabricated construction deepen continuously.
Rarely occurred earthquake act on force effect under, in conventional cast-in-place concrete frame structure, bottom vertical member basal cross section by Power is maximum, tension side concrete cracking, and tension reinforcement can take the lead in entering plastic strain stage, the steel in certain length at this Muscle generates plastic deformation, forms plastic hinge, with the increasing of load, column bottom tension side concrete further cracks, tension steel Muscle strain further increases, and plastic hinge deformation further increases, and strains and then is pulled off until tension reinforcement reaches capacity, structure It destroys.This destruction is that have apparent destruction sign before structure destruction in the apparent deformation of structure generation, can be striven to user Certain escape time is taken, is referred to as " ductile fracture ".The key that above-mentioned ductile fracture is formed is connecting node plastic hinge It is formed.Two necessary conditions for forming plastic hinge are that column bottom steel bar stress enters plastic strain stress stage and structure for plastic hinge Certain length is provided and forms plastic deformation.
The common joint reinforcing bar connection type of assembled arthitecutral structure is sleeve grouting connection at present.Bottom prefabricated post with it is existing When casting foundation reinforcing bar is using sleeve grouting connection, sleeve is often embedded in bottom prefabricated post, is vertically connected with bar diameter by pre- Structure compound action loadometer, which is calculated, at column basal cross section processed carries out value, connects reinforcing bar at this time and usually takes same diameter, connects in this way It is safe in frequently occurred earthquake force effect lower structure.But under rarely occurred earthquake force effect, column bottom tension reinforcement enters plasticity and answers After change, since grout sleeve is also in elastic stage, tension reinforcement can not be coordinated to generate plastic deformation, i.e., can not be tension steel Muscle provides enough deformation lengths.In this case, when active force continues to increase, tension reinforcement is not obviously deforming In the case of stress constantly increase, until its stress reaches its ultimate tensible strength angle value to being broken suddenly.It is this to have no sign Failure mode be referred to as " brittle break ", be do not allow in structure design occur failure mode.
Utility model content
Technical problem to be solved in the utility model is:A kind of strong ties structure of assembled vertical member and basis is provided It makes.
Above-mentioned technical problem is solved, technical solution is as follows used by the utility model:
A kind of strong ties construction of assembled vertical member and basis, including cast-in-situ steel reinforced concrete basis and reinforced concrete Native Prefabricated vertical member, the cast-in-situ steel reinforced concrete basis are equipped with for connecting the armored concrete Prefabricated vertical member Protruding bar, the quantity of the protruding bar corresponds to the vertical muscle of the armored concrete Prefabricated vertical member, described in each The lower part of protruding bar is embedded in the concrete on the cast-in-situ steel reinforced concrete basis, the upper end of each protruding bar Head stretches out upwardly from the concrete upper end on cast-in-situ steel reinforced concrete basis;It is characterized in that:The reinforced concrete Native Prefabricated vertical member is embedded with grout sleeve of the quantity corresponding to its vertical muscle, each described grout sleeve is embedded in the steel In the concrete of reinforced concrete Prefabricated vertical member, and the lower connectivity port of the grout sleeve is prefabricated in the armored concrete The lower face of vertical member is exposed, and the grouting port and thick liquid discharge mouth of the grout sleeve are in the prefabricated vertical structure of the armored concrete The side wall of part exposes, and the lower end of each vertical muscle of the armored concrete Prefabricated vertical member is installed to corresponding grout sleeve Upper connectivity port in;The upper end of each protruding bar is inserted into the lower connectivity port of corresponding grout sleeve, institute It states grout sleeve and is perfused with grouting material so that each protruding bar passes through a grout sleeve and corresponding institute It states vertical muscle to be connected, and the diameter of the protruding bar is more straight than the vertical muscle that is connected by the same grout sleeve with it Diameter is big, also, the concrete of the lower face of the armored concrete Prefabricated vertical member and cast-in-situ steel reinforced concrete basis There are gaps, the gap to be equipped with concrete and sit pulp layer between upper surface.
As preferred embodiments of the present invention:The diameter ratio of the protruding bar passes through the same filling with it Starch at least big two-stage of diameter of the connected vertical muscle of sleeve.
As preferred embodiments of the present invention:The grout sleeve is half grout sleeve, i.e.,:The grouting set The upper connectivity port of cylinder is screw thread port, the lower end of each vertical muscle and the upper connectivity port spiral shell of corresponding grout sleeve Line connects, and the upper end of each protruding bar is connected by the grouting material with corresponding grout sleeve.
As preferred embodiments of the present invention:The grout sleeve is full grout sleeve, i.e.,:Described in each The lower end of vertical muscle and the upper end of each protruding bar are connected by the grouting material with corresponding grout sleeve.
As preferred embodiments of the present invention:The armored concrete Prefabricated vertical member is prefabricated reinforcing bar Concrete frame trestle;Alternatively, the armored concrete Prefabricated vertical member is prefabricated reinforced concrete shear wall.
A kind of strong ties construction method of assembled vertical member and basis, it is characterised in that:The strong ties construction Method includes:
Step 1: in factory, armored concrete Prefabricated vertical member is prepared, the armored concrete Prefabricated vertical member is pre- It is embedded with grout sleeve of the quantity corresponding to its vertical muscle, it is prefabricated vertical that each described grout sleeve is embedded in the armored concrete In the concrete of component, and the lower connectivity port of the grout sleeve is in the lower face of the armored concrete Prefabricated vertical member Expose, the grouting port and thick liquid discharge mouth of the grout sleeve expose in the side wall of the armored concrete Prefabricated vertical member, institute The lower end for stating each vertical muscle of armored concrete Prefabricated vertical member is installed in the upper connectivity port of corresponding grout sleeve;
Step 2: at the construction field (site), the reinforcement foundation and protruding bar on binding cast-in-situ steel reinforced concrete basis, wherein institute It states protruding bar and corresponds to the reinforcing bar for connecting the armored concrete Prefabricated vertical member, the quantity of the protruding bar The vertical muscle of concrete prefabricated vertical member, also, the diameter of each protruding bar is more straight than the corresponding vertical muscle Diameter is big;
Step 3: pouring the concrete on the cast-in-situ steel reinforced concrete basis so that under each protruding bar Portion is embedded in the concrete on the cast-in-situ steel reinforced concrete basis, and the upper end of each protruding bar is from described existing The concrete upper end for pouring reinforced concrete foundation is stretched out upwardly, to form the cast-in-situ steel reinforced concrete basis;
Step 4: lifting the armored concrete Prefabricated vertical member so that the upper end of each protruding bar Be inserted into the lower connectivity port of corresponding grout sleeve, also, make the lower face of the armored concrete Prefabricated vertical member with There are gaps between the concrete upper surface on the cast-in-situ steel reinforced concrete basis;
Step 5: grouting material is perfused to the grout sleeve so that each protruding bar is by described in one Grout sleeve is connected with the corresponding vertical muscle;
Step 6: after all grout sleeves complete grouting material perfusion, the grouting material is perfused into the gap, And the joint face between the armored concrete Prefabricated vertical member and cast-in-situ steel reinforced concrete basis is smoothed out, to form concrete Sit pulp layer.
In order to ensure grout sleeve can play reliable connection function, as preferred embodiments of the present invention: In the step five, the mode that grouting material is perfused to the grout sleeve is:By the grouting material from the grout sleeve Grouting port injects, and after the grouting material injected is from the thick liquid discharge mouth of grout sleeve spilling, then blocks the grouting set in time The grouting port and thick liquid discharge mouth of cylinder, to complete the grouting material perfusion to the grout sleeve.
As preferred embodiments of the present invention:The diameter ratio of the protruding bar passes through the same filling with it Starch at least big two-stage of diameter of the connected vertical muscle of sleeve.
As preferred embodiments of the present invention:The grout sleeve is half grout sleeve, i.e.,:The grouting set The upper connectivity port of cylinder is screw thread port, the lower end of each vertical muscle and the upper connectivity port spiral shell of corresponding grout sleeve Line connects, and the upper end of each protruding bar is connected by the grouting material with corresponding grout sleeve.
As preferred embodiments of the present invention:The grout sleeve is full grout sleeve, i.e.,:Described in each The lower end of vertical muscle and the upper end of each protruding bar are connected by the grouting material with corresponding grout sleeve.
Compared with prior art, the utility model has the advantages that:
First, the strong ties construction of the utility model for the protruding bar being connected by the same grout sleeve and is indulged Muscle is more than the protruding bar of vertical muscle by using diameter, under the premise of realizing the rwo connection using grout sleeve, realizes The strong ties of connecting node between cast-in-situ steel reinforced concrete basis and armored concrete Prefabricated vertical member ensure that connection section Point region steel bar anchoring can be transmitted effectively, and make building when meeting with rarely occurred earthquake, can be saved in aforementioned connection The upper area of point (i.e. at grout sleeve) generates plastic hinge, and vertical member bottom and the junction reinforcing bar on basis is avoided to meet with Have no the generation brittle break of sign when rarely occurred earthquake, keep fabricated construction safer, ensure that the property that structure ductility destroys Can, therefore, the strong ties construction of the utility model, which has to improve frame structure holistic resistant behavior and improve ductility, to be resisted The advantages of shock stability.
Second, the strong ties construction method of the utility model can realize cast-in-situ steel reinforced concrete basis and reinforced concrete The strong ties of connecting node between native Prefabricated vertical member, and realize the construction work needed for each step of the construction method The equal mature and reliable of skill so that whole construction efficiency is high, construction quality can be guaranteed.
Description of the drawings
The utility model is described in further detail in the following with reference to the drawings and specific embodiments:
Fig. 1 is the structural schematic diagram that the strong ties of the utility model construct;
Fig. 2 is the connecting node on cast-in-situ steel reinforced concrete basis and armored concrete Prefabricated vertical member in the utility model The structure enlargement diagram at place.
Specific implementation mode
As depicted in figs. 1 and 2, disclosed by the utility model is a kind of strong ties structure of assembled vertical member and basis It makes, including cast-in-situ steel reinforced concrete basis 1 and armored concrete Prefabricated vertical member 2, cast-in-situ steel reinforced concrete basis 1 can be Shallow foundation can also be pile foundation, and cast-in-situ steel reinforced concrete basis 1 is equipped with for connecting armored concrete Prefabricated vertical member 2 Protruding bar 11, the quantity of protruding bar 11 correspond to the vertical muscle 21 of armored concrete Prefabricated vertical member 2, each overhanging steel The lower part of muscle 11 is embedded in the concrete on cast-in-situ steel reinforced concrete basis 1, and the upper end of each protruding bar 11 is from existing The concrete upper end for pouring reinforced concrete foundation 1 is stretched out upwardly.
The inventive concept of the utility model is:Armored concrete Prefabricated vertical member 2 is embedded with quantity corresponding to its vertical muscle 21 grout sleeve 3, each grout sleeve 3 are embedded in the concrete of armored concrete Prefabricated vertical member 2, and the set that is in the milk Cylinder 3 lower connectivity port 3b armored concrete Prefabricated vertical member 2 lower face expose, the grouting port 3c of grout sleeve 3 and Thick liquid discharge mouth 3d exposes in the side wall of armored concrete Prefabricated vertical member 2, each of armored concrete Prefabricated vertical member 2 The lower end of vertical muscle 21 is installed in the upper connectivity port 3a of corresponding grout sleeve 3;The upper end of each protruding bar 11 is inserted In the lower connectivity port 3b for entering corresponding grout sleeve 3, grout sleeve 3 is perfused with grouting material so that each protruding bar 11 It is connected with corresponding vertical muscle 21 by a grout sleeve 3, and the diameter ratio of protruding bar 11 passes through the same grouting with it The diameter of the connected vertical muscle 21 of sleeve 3 is big, also, the lower face of armored concrete Prefabricated vertical member 2 and cast in place reinforced bar coagulation There are gap between the concrete upper surface of earth foundation 1, by 20mm is defined as, which sits the thickness in the gap equipped with concrete Pulp layer 4.
To for the protruding bar 11 and vertical muscle 21 being connected by the same grout sleeve 3, be more than by using diameter The protruding bar 11 of vertical muscle 21 realizes cast-in-situ steel reinforced concrete under the premise of realizing the rwo connection using grout sleeve 3 The strong ties of connecting node between basis 1 and armored concrete Prefabricated vertical member 2, ensure that in the reinforcing bar of connecting node region Power can be transmitted effectively, and make building when meeting with rarely occurred earthquake, can be in aforementioned connecting node (i.e. grout sleeve At 3) upper area generate plastic hinge, avoid vertical member bottom with basis junction reinforcing bar when meeting with rarely occurred earthquake in the least Generation brittle break without sign, keeps fabricated construction safer, ensure that the performance that structure ductility destroys, therefore, this reality With novel strong ties construction have the advantages that frame structure holistic resistant behavior can be improved and improves tensility shock-resistant performance.
On the basis of foregoing invention is conceived, the utility model uses following preferred structure:
As preferred embodiments of the present invention:The diameter ratio of protruding bar 11 passes through the same grout sleeve with it At least big two-stage of diameter of 3 connected vertical muscle 21, the concrete numerical value of the diameter increment is according to cast-in-situ steel reinforced concrete basis 1 and steel The concrete structure size of reinforced concrete Prefabricated vertical member 2, which calculates, to be determined.
As preferred embodiments of the present invention:Grout sleeve 3 is half grout sleeve, i.e.,:The upper company of grout sleeve 3 It is screw thread port to meet port 3a, and the lower end of each vertical muscle 21 connects with the upper connectivity port 3a screw threads of corresponding grout sleeve 3 It connects, the upper end of each protruding bar 11 is connected by grouting material with corresponding grout sleeve 3.
As preferred embodiments of the present invention:Grout sleeve 3 is full grout sleeve, i.e.,:Each vertical muscle 21 The upper end of lower end and each protruding bar 11 is connected by grouting material with corresponding grout sleeve 3.
The utility model is suitable for frame structure, i.e.,:Armored concrete Prefabricated vertical member 2 is prefabricated armored concrete Frame column.
The utility model is equally applicable to precast concrete shear wall structure and frame shear wall structure, i.e.,:Reinforced concrete Native Prefabricated vertical member 2 is prefabricated reinforced concrete shear wall.
The invention also discloses the strong ties construction methods of a kind of assembled vertical member and basis, including:
Step 1: in factory, armored concrete Prefabricated vertical member 2 is prepared, armored concrete Prefabricated vertical member 2 is pre-buried There is quantity to correspond to the grout sleeve 3 of its vertical muscle 21, each grout sleeve 3 is embedded in armored concrete Prefabricated vertical member 2 Concrete in, and the lower connectivity port 3b of grout sleeve 3 armored concrete Prefabricated vertical member 2 lower face expose, fill The grouting port 3c and thick liquid discharge mouth 3d for starching sleeve 3 expose in the side wall of armored concrete Prefabricated vertical member 2, and armored concrete is pre- The lower end of each vertical muscle 21 of vertical member 2 processed is installed in the upper connectivity port 3a of corresponding grout sleeve 3;
Step 2: at the construction field (site), the reinforcement foundation 12 and protruding bar 11 on binding cast-in-situ steel reinforced concrete basis 1, In, protruding bar 11 corresponds to armored concrete for connecting armored concrete Prefabricated vertical member 2, the quantity of protruding bar 11 The vertical muscle 21 of Prefabricated vertical member 2, also, diameter of the diameter of each protruding bar 11 than corresponding vertical muscle 21 is big;
Step 3: pouring the concrete on cast-in-situ steel reinforced concrete basis 1 so that bury the lower part of each protruding bar 11 In the concrete on cast-in-situ steel reinforced concrete basis 1, the upper end of each protruding bar 11 is from cast-in-situ steel reinforced concrete base The concrete upper end of plinth 1 is stretched out upwardly, to form cast-in-situ steel reinforced concrete basis 1, wherein cast-in-situ steel reinforced concrete basis 1 Can be shallow foundation can also be pile foundation;
Step 4: after the concrete on cast-in-situ steel reinforced concrete basis 1 reaches sufficient intensity, lifting armored concrete is prefabricated Vertical member 2 so that the upper end of each protruding bar 11 is inserted into the lower connectivity port 3b of corresponding grout sleeve 3, and The verticality of armored concrete Prefabricated vertical member 2 is adjusted, also, by armored concrete Prefabricated vertical member 2 and now Pour and be laid with the usual ways such as cushion block between reinforced concrete foundation 1, make the lower face of armored concrete Prefabricated vertical member 2 with it is existing It pours between the concrete upper surface of reinforced concrete foundation 1 there are gap, the thickness in the gap is by being defined as 20mm;
Step 5: grouting material is perfused to grout sleeve 3 so that each protruding bar 11 passes through a grout sleeve 3 It is connected with corresponding vertical muscle 21;
Step 6: after whole grout sleeves 3 complete grouting material perfusion, grouting material is perfused into gap, and smooth out reinforcing bar Joint face between concrete prefabricated vertical member 2 and cast-in-situ steel reinforced concrete basis 1 sits pulp layer 4 to form concrete;It waits for complete After portion's grouting material reaches sufficient intensity, that is, complete armored concrete Prefabricated vertical member 2 and cast-in-situ steel reinforced concrete basis 1 Between strong ties.
To which the strong ties construction method of the utility model can realize cast-in-situ steel reinforced concrete basis 1 and reinforced concrete The strong ties of connecting node between native Prefabricated vertical member 2, and the equal mature and reliable of each step of the construction method so that Whole construction efficiency is high, construction quality can be guaranteed.
Wherein, in order to ensure grout sleeve 3 can play reliable connection function, in above-mentioned steps five, to grout sleeve 3 Perfusion grouting material mode be:By grouting material from the grouting port 3c injections of grout sleeve 3, wait that the grouting material injected is covered from grouting After the thick liquid discharge mouth 3d of cylinder 3 overflows, then timely plugging grouting sleeve 3 grouting port 3c and thick liquid discharge mouth 3d, to complete to grout sleeve 3 Grouting material perfusion.
In addition, the strong ties construction method of the utility model, can equally use above-mentioned assembled vertical member and basis Strong ties construction preferred structure.
The utility model is not limited to above-mentioned specific implementation mode, according to the above, according to the ordinary skill of this field Knowledge and customary means, under the premise of not departing from the utility model above-mentioned basic fundamental thought, the utility model can also be made Equivalent modifications, replacement or the change of other diversified forms are all fallen among the scope of protection of the utility model.

Claims (5)

1. a kind of assembled vertical member and the strong ties on basis construct, including cast-in-situ steel reinforced concrete basic (1) and reinforcing bar mix Solidifying soil Prefabricated vertical member (2), the cast-in-situ steel reinforced concrete basic (1) are equipped with prefabricated perpendicular for connecting the armored concrete To the protruding bar (11) of component (2), the quantity of the protruding bar (11) corresponds to the prefabricated vertical structure of the armored concrete The lower part of the vertical muscle (21) of part (2), each protruding bar (11) is embedded in the cast-in-situ steel reinforced concrete basic (1) In concrete, the upper end of each protruding bar (11) is from the concrete of the cast-in-situ steel reinforced concrete basic (1) Upper end is stretched out upwardly;It is characterized in that:It is vertical corresponding to it that the armored concrete Prefabricated vertical member (2) is embedded with quantity The grout sleeve (3) of muscle (21), each described grout sleeve (3) are embedded in the armored concrete Prefabricated vertical member (2) Concrete in, and the lower connectivity port (3b) of the grout sleeve (3) is in the armored concrete Prefabricated vertical member (2) Lower face is exposed, and the grouting port (3c) and thick liquid discharge mouth (3d) of the grout sleeve (3) are prefabricated vertical in the armored concrete The side wall of component (2) exposes, and the lower end of each vertical muscle (21) of the armored concrete Prefabricated vertical member (2) is installed to pair In the upper connectivity port (3a) for the grout sleeve (3) answered;The upper end of each protruding bar (11) is inserted into corresponding filling In the lower connectivity port (3b) for starching sleeve (3), the grout sleeve (3) is perfused with grouting material so that each overhanging steel Muscle (11) is connected by a grout sleeve (3) with the corresponding vertical muscle (21), and the protruding bar (11) The diameter for the vertical muscle (21) that diameter ratio is connected with it by the same grout sleeve (3) is big, also, the reinforcing bar is mixed Between the lower face of solidifying soil Prefabricated vertical member (2) and the concrete upper surface on cast-in-situ steel reinforced concrete basis (1) there are Gap, the gap are equipped with concrete and sit pulp layer (4).
2. assembled vertical member and the strong ties on basis construct according to claim 1, it is characterised in that:The overhanging steel The diameter for the vertical muscle (21) that the diameter ratio of muscle (11) is connected with it by the same grout sleeve (3) is at least big by two Grade.
3. assembled vertical member according to claim 1 or claim 2 and the strong ties on basis construct, it is characterised in that:Described Grout sleeve (3) is half grout sleeve, i.e.,:The upper connectivity port (3a) of the grout sleeve (3) is screw thread port, Mei Yigen The lower end of the vertical muscle (21) is threadedly coupled with the upper connectivity port (3a) of corresponding grout sleeve (3), and each described overhanging The upper end of reinforcing bar (11) is connected by the grouting material with corresponding grout sleeve (3).
4. assembled vertical member according to claim 1 or claim 2 and the strong ties on basis construct, it is characterised in that:Described Grout sleeve (3) is full grout sleeve, i.e.,:The lower end of each vertical muscle (21) and each protruding bar (11) Upper end is connected by the grouting material with corresponding grout sleeve (3).
5. assembled vertical member according to claim 1 or claim 2 and the strong ties on basis construct, it is characterised in that:Described Armored concrete Prefabricated vertical member (2) is prefabricated reinforced concrete frame column;Alternatively, the armored concrete is prefabricated perpendicular It is prefabricated reinforced concrete shear wall to component (2).
CN201721928269.1U 2017-12-29 2017-12-29 A kind of strong ties construction of assembled vertical member and basis Active CN207846656U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721928269.1U CN207846656U (en) 2017-12-29 2017-12-29 A kind of strong ties construction of assembled vertical member and basis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721928269.1U CN207846656U (en) 2017-12-29 2017-12-29 A kind of strong ties construction of assembled vertical member and basis

Publications (1)

Publication Number Publication Date
CN207846656U true CN207846656U (en) 2018-09-11

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Country Status (1)

Country Link
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Effective date of registration: 20200123

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Patentee before: Guangdong Construction Academy Group Plc

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