CN207176718U - A kind of assembled heel join node - Google Patents
A kind of assembled heel join node Download PDFInfo
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- CN207176718U CN207176718U CN201720631414.3U CN201720631414U CN207176718U CN 207176718 U CN207176718 U CN 207176718U CN 201720631414 U CN201720631414 U CN 201720631414U CN 207176718 U CN207176718 U CN 207176718U
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- reinforced concrete
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- sleeve
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Abstract
A kind of assembled heel join node, the node prefabricated reinforced concrete column, reinforced concrete foundation, the vertical muscle of post anchoring, grout sleeve, foundation anchor reinforcing bar, foundation anchor reinforcing bar anchors vertical muscle with post and is connected by the gap-grouting material being full of in grout sleeve, gap-grouting material has been also filled with reinforced concrete foundation and prefabricated reinforced concrete column splicing seams, foundation anchor reinforcing bar vertical part and horizontal part, vertical part is divided into the upper anchorage section for the upper surface for stretching out reinforced concrete foundation, middle part soap-free emulsion polymeization section and lower anchor section in buried foundation, the outside of middle part soap-free emulsion polymeization section, which is provided with, isolates its insulating kit with concrete binding, the top surface of insulating kit is concordant with the upper surface of reinforced concrete foundation.The utility model improves the ability and mechanical property of column joints deformation at suspension column in fabricated construction, can efficiently construct and anti-seismic performance is good.
Description
Technical field
The utility model belongs to fabricated construction building field, particularly a kind of assembly concrete frame structure and framework
The foot joint of shear wall structure.
Background technology
In the assembling frame structure commonly used both at home and abroad at present, its foot joint is mainly connected using grout sleeve.
The suspension column stress of grout sleeve connection is larger, and seam crossing stress maximum of the muscle on suspension column and basis is indulged in post, remaining
Then reinforcing steel bar bear is relatively small due to there is concrete parcel for vertical muscle, so causes vertical muscle deformation to concentrate on seam crossing.Meet ground rare
Shake under load, seam crossing is indulged muscle easily and is broken because of deforming excessive, causes the structure of assembled architecture to be destroyed.Be in the milk set simultaneously
Cylinder is typically less efficient using the grouting one by one to each sleeve, seam crossing node construction.
Utility model content
The purpose of this utility model is to provide a kind of assembled heel join node, to solve fabricated construction foot joint
The insufficient technical problem of deformability and mechanical property.
To achieve the above object, the utility model adopts the following technical scheme that：
A kind of assembled heel join node, including the prefabricated reinforced concrete column on the top of vertical corresponding splicing and bottom
Reinforced concrete foundation, be embedded with the prefabricated reinforced concrete column along the shaft post of uniform one week and anchor vertical muscle and grouting
Sleeve, foundation anchor reinforcing bar is embedded with the reinforced concrete foundation, and the foundation anchor reinforcing bar anchors vertical muscle with post and passed through
The gap-grouting material being full of in grout sleeve connects, and has been also filled with reinforced concrete foundation and prefabricated reinforced concrete column splicing seams
Gap-grouting material,
The foundation anchor reinforcing bar is L-shaped, including vertical part and horizontal part, and the vertical part is divided into stretching reinforced concrete foundation
Upper surface upper anchorage section, middle part soap-free emulsion polymeization section and lower anchor section in buried foundation, the upper anchorage section stretches into
Vertical muscle is anchored in grout sleeve with post to be connected, middle part soap-free emulsion polymeization section and base concrete soap-free emulsion polymeization, lower anchor section and horizontal part
With base concrete bond-anchorage,
The outside of the middle part soap-free emulsion polymeization section, which is provided with, isolates its insulating kit with concrete binding, the insulating kit
Top surface is concordant with the upper surface of reinforced concrete foundation.
The length of the middle part soap-free emulsion polymeization section is 3 times to 20 times of bar diameter.
The insulating kit is hard sleeve, and the plastic tube or steel pipe of middle part soap-free emulsion polymeization section diameter are more than using internal diameter, or
Insulating kit described in person is to wrap up the plastics layer of cloth of this section again after the soap-free emulsion polymeization section full coat special anti-corrosion lubricant grease of middle part.
The middle part soap-free emulsion polymeization section is provided with necking section, and the cross-sectional area decrement of the necking section is former area of section
50%-90%, the insulating kit are hard sleeve.
The necking section is that the section formed by machining weakens, and the section, which weakens to use to reduce, weakens section reinforcing bar
The mode of diameter of section or using cutting reinforcing bar upper and lower sides or left and right sides formed breach by the way of.
The non-constriction stretch section of at least one non-machining, the non-constriction stretch section can be installed with the necking section
It is distributed on necking section, each non-constriction stretch section total length is not more than the half of necking section total length.
The grout sleeve be in side wall without grouting port, be provided only with the sleeve without independent grouting port form of grout outlet, institute
State prefabricated reinforced concrete column and be provided with slurry stream circulation passage in a post, in the post outside one end connection side wall of slurry stream circulation passage
Portion forms total grouting port, other end connection reinforced concrete foundation and prefabricated reinforced concrete column splicing seams, the splicing slit
Slurry circulation passage outside into the post of grout sleeve, gap-grouting material are poured into by slurry stream circulation passage in post full of spelling from total grouting port
Seam, then flowed out full of each grout sleeve and from grout outlet.
Slurry stream circulation passage is in inverted L-shaped in the post, including horizontal channel and vertical passageway, and the horizontal channel connects side
Outside wall, vertical passageway connection splicing seams, vertical passageway is located in the vertical axis of prefabricated reinforced concrete column.
The utility model has the characteristics that and beneficial effect compared with prior art：
Connecting node of the present utility model improves the ability and mechanical property of column joints deformation at suspension column in fabricated construction,
It can efficiently construct and anti-seismic performance is good, the assembled foot joint and construction method easily repaired after shake.Company of the present utility model
Connecing node has a good anti-seismic performance, and the simple speed of application of construction method process of the present utility model is fast.
In connecting node of the present utility model, soap-free emulsion polymeization section is set on foundation anchor reinforcing bar, reinforcing bar deformation is distributed to whole
Individual reinforcing bar soap-free emulsion polymeization section, substantially reduces the maximum strain of reinforcing bar, can ensure steel bar stress on the rare chance ground of design to a certain extent
Excessive deformation does not occur under shake effect, so as to avoid reinforcing bar from destroying.
The utility model can also reduce reinforcing bar Strain permeation effect, enter one by the way that soap-free emulsion polymeization section is carried out into section weakening
Reinforcing bar deformation is concentrated on section and weakens section by step, and the sleeve connection that reducing to occur destroys or has the destruction of adhesive section reinforcement yielding
Risk.
The utility model can set one or more resilient support sections can weaken in section in section, reduce section and weaken
The bent risks in the wrong of Duan Fasheng, further improve the energy-dissipating property for weakening section under hysteresis loading.
The utility model reduces structure and broken under design rarely occurred earthquake effect to further improve prefabricated post deformability
Bad degree, outsourcing certain thickness at prefabricated post suspension column and the steel plate of height can be reduced suspension column concrete compression destructiveness.
The utility model can use single hole grouting technique, without to each set to further improve node construction efficiency
The grouting one by one of cylinder, slip casting at a total grouting port.
The utility model is applied to more high-rise public buildings, such as school, office building, apartment, hospital.
Brief description of the drawings
The utility model is described in more detail below in conjunction with the accompanying drawings.
Fig. 1 is the foot joint schematic diagram of the utility model embodiment.
Fig. 2 is the schematic diagram of A-A sections in Fig. 1.
Fig. 3 is the power consumption reinforcing bar necking section schematic diagram for the foundation anchor reinforcing bar that the utility model is related to example.
Fig. 4 is that the power consumption reinforcing bar necking section for the foundation anchor reinforcing bar that the utility model is related to example and non-constriction stretch section show
It is intended to.
Fig. 5 is the schematic diagram that B-B sections i.e. section weakens by the way of weakening section steel area diameter is reduced in Fig. 3.
Fig. 6 is the schematic diagram that C-C sections section weakens by the way of cutting reinforcing bar upper and lower sides form breach in Fig. 4.
Fig. 7 is the schematic diagram that the utility model insulating kit is hard sleeve.
Fig. 8 is the schematic diagram of D-D sections in Fig. 7.
Reference：1- prefabricated reinforced concrete columns, 2- reinforced concrete foundations, the vertical muscle of 3- posts anchoring, 4- grouting
The total grouting port of sleeve, 5-, 6- foundation anchors reinforcing bar, 7- gap-grouting materials, 8- vertical parts, 81- upper anchorages section, 82- middle parts
The non-constriction stretch section of soap-free emulsion polymeization section, 821- necking sections, 822-, 83- lower anchors section, 9- horizontal parts, 10- insulating kit,
Slurry stream circulation passage, 121- horizontal channels, 122- vertical passageways, 13- original cross section contours in 11- grout outlets, 12- posts.
Embodiment
For embodiment referring to shown in Fig. 1-2, a kind of assembled heel join node, including the top of vertical corresponding splicing are pre-
Reinforced column 1 processed and the reinforced concrete foundation 2 of bottom, it is embedded with the prefabricated reinforced concrete column 1 equal along shaft
Muscle 3 and grout sleeve 4 are indulged in the anchoring of the cloth post of one week, and foundation anchor reinforcing bar 6 is embedded with the reinforced concrete foundation 2, described
Foundation anchor reinforcing bar 6 anchors vertical muscle 3 with post and is connected by the gap-grouting material 7 being full of in grout sleeve 4, reinforced concrete foundation 2
Gap-grouting material 7 has been also filled with the splicing seams of prefabricated reinforced concrete column 1.Grout sleeve 4 uses common grout sleeve.
The gap-grouting material is more than compression strength 45MPa high-strength quick-hardening cement base grouting material or steel fibre, carbon fibre
Dimension or other fiber quick-hardening cement base grouting materials or polymer mortar material.
The foundation anchor reinforcing bar 6 is L-shaped, including vertical part 8 and horizontal part 9, the vertical part are divided into stretching armored concrete
Upper anchorage section 81, the middle part soap-free emulsion polymeization section 82 and lower anchor section 83 in buried foundation of the upper surface on basis 2, the top
Anchoring section 81 is stretched into grout sleeve 4 and is connected with the vertical muscle 3 of post anchoring, middle part soap-free emulsion polymeization section 82 and base concrete soap-free emulsion polymeization, under
Portion's anchoring section 83 and horizontal part 9 with base concrete bond-anchorage.
The outside of the middle part soap-free emulsion polymeization section 82, which is provided with, isolates its insulating kit 10 with concrete binding, the separation sleeve
The top surface of part 10 is concordant with the upper surface of reinforced concrete foundation 2.
The length of middle part soap-free emulsion polymeization section 82 needs that, by calculating determination, flexing Stability Checking Calculation should be carried out to ensure that it is unlikely to
Generation buckling failure, to ensure that structure reinforcing bar in the case of design ultimate load is unlikely to produce large plastometric set and causes to tie
Structure is destroyed and is defined, and general length is 3 times to 20 times of bar diameter.
The insulating kit 10 is hard sleeve, and the plastic tube or steel pipe of middle part soap-free emulsion polymeization section diameter are more than using internal diameter,
Or the insulating kit 10 is to wrap up the plastics layer of cloth of this section again after the soap-free emulsion polymeization section full coat special anti-corrosion lubricant grease of middle part.
It is hard sleeve referring to shown in Fig. 7-8, in the present embodiment.
It is shown in Figure 3, further in other embodiments, constriction is also provided with the middle part soap-free emulsion polymeization section 82
Section 821, the cross-sectional area decrement of the necking section 821 are the 50%-90% of former area of section, in such cases the insulating kit
10 must use hard sleeve.The necking section is that the section formed by machining weakens, and the section weakens to use and subtracted
It is small weaken section steel area diameter mode or using cutting reinforcing bar upper and lower sides or left and right sides formation breach by the way of.Referring to figure
Shown in 5 and Fig. 6, its Central Plains cross section contour 13 is also shown in figure.
It is shown in Figure 4, it can also further in other embodiments, on the necking section 821 work as and be cut using segmentation
The mode cut is handled, and is installed with the non-constriction stretch section 822 of at least one section non-machining, generally 1-5 sections.The non-constriction bullet
Property the surrender of Duan Kewei necking sections when provide and flexibly support and then improve the energy-dissipating property of necking section and the mechanical property of foot joint,
The non-constriction stretch section 822 is distributed on necking section 821, and necking section is divided into multiple length by each non-constriction stretch section 822
Degree is similar to be segmented, and each non-total length of constriction stretch section 822 is not more than the half of the total length of necking section 821.
In the present embodiment, it is shown in Figure 1, the grout sleeve 4 using in side wall without grouting port, be provided only with grout outlet
11 sleeve without independent grouting port form.The prefabricated reinforced concrete column 1 is provided with slurry stream circulation passage 12 in a post, should
Form total grouting port 5 in post outside one end connection side wall of slurry stream circulation passage, other end connection reinforced concrete foundation 2 and pre-
The splicing seams of reinforced column 1 processed, gap-grouting material 7 are poured into by slurry stream circulation passage 12 in post full of splicing from total grouting port 13
Seam, then flow out full of each grout sleeve 4 and from grout outlet 11.
Now splicing seams are used as without independent grouting port form again both as the measure for eliminating error on the safe side in installation process
The outer slurry circulation passage of the post of sleeve.The width of the splicing seams is 20-30mm, edge of the gap-grouting material at splicing seams
Beyond the edge of prefabricated reinforced concrete column.
Shown in Figure 1, slurry stream circulation passage 12 is in inverted L-shaped in the post, including horizontal channel 121 and vertical passageway
122, the horizontal channel 121 is connected outside side wall, and vertical passageway 122 connects splicing seams, and vertical passageway 122 is positioned at precast reinforced
In the vertical axis of concrete column 1.
A kind of construction method of assembled heel join node, construction procedure are as follows：
Step 1: colligation reinforcement foundation cage and supporting module.
Step 2: processing foundation anchor reinforcing bar.
Step 3: precalculated position that foundation anchor reinforcing bar 6 is placed in template and installing insulating kit, then pour mixed
Solidifying soil forms reinforced concrete foundation 2.
Step 4: the vertical muscle 3 of colligation post steel reinforcement cage, post anchoring and grout sleeve 4, then supporting module, and casting concrete
Form prefabricated reinforced concrete column 1.
Step 5: prefabricated reinforced concrete column 1 is transported to live and interim in place, foundation anchor reinforcing bar 6 is inserted into filling
Temporary support fixation is set to ensure the width of splicing seams in slurry sleeve 4；Surface of base prefabricated post installation site and prefabricated post bottom
Face should carry out mat surface processing or set shearing resistance keyway to ensure the reliability of node shearing resistance.At this during progress mat surface processing
High pressure water washing is used to form mat surface after coating the retarder demoulding in place's template.
Step 6: being first full of splicing seams using gap-grouting material 7, gap-grouting material 7 is then filled in grout sleeve.
Step 7: after the gap-grouting material in grout sleeve reaches intensity requirement, facing for prefabricated reinforced concrete column 1 is removed
When support, complete foot joint construction.
A kind of construction method of assembled heel join node, construction procedure are as follows：
Step 1: colligation reinforcement foundation cage and supporting module.
Step 2: processing foundation anchor reinforcing bar.
Step 3: precalculated position that foundation anchor reinforcing bar 6 is placed in template and installing insulating kit 10, then pour
Concrete forms reinforced concrete foundation 2.
Step 4: the vertical muscle 3 of colligation post steel reinforcement cage, post anchoring and grout sleeve 4, then install slurries in post exterior sheathing and post
The inner template of circulation passage 12, and casting concrete forms slurry stream circulation passage 12 in prefabricated reinforced concrete column 1 and post.
Step 5: prefabricated reinforced concrete column 1 is transported to live and interim in place, foundation anchor reinforcing bar 6 is inserted into filling
Temporary support fixation is set to ensure the width of splicing seams, surface of base prefabricated post installation site and prefabricated post bottom in slurry sleeve 4
Face should carry out mat surface processing or set shearing resistance keyway to ensure the reliability of node shearing resistance.At this during progress mat surface processing
High pressure water washing is used to form mat surface after coating the retarder demoulding in place's template.
Step 6: gap-grouting material 7 pours into from total grouting port 5, splicing seams are full of by slurry stream circulation passage 1 in post, then
Flow out full of each grout sleeve 4 and from grout outlet 11, each reinforcing steel bar connecting sleeve tube is filled real.
Step 7: after the gap-grouting material in grout sleeve reaches intensity requirement, facing for prefabricated reinforced concrete column 1 is removed
When support, complete foot joint construction.
In practice of construction, basis can be prefabricated in the factory or cast-in-place at the construction field (site).Anchored simultaneously in order to monitor
The strain regime of reinforcing bar, strain can be set in the middle part soap-free emulsion polymeization section on the four pile foundation anchor bars in connecting node corner
Piece, soap-free emulsion polymeization section strain monitoring in the middle part of crucial stress foot joint progress can be extracted in Practical Project.
Encased steel plate can also be enclosed with the range of the post bottom of prefabricated reinforced concrete column, further improves suspension column concrete
Ductility, mitigate prefabricated post suspension column destructiveness under geological process.When being handled in suspension column using encased steel plate, suspension column Covered with Angles
Together with plate is poured by peg with prefabricated post, its thickness should be determined by calculating, to meet that the constraint to suspension column concrete will
Ask and ensure that suspension column concrete is not subject to crushing and is defined under design ultimate load.Encased steel plate height should be determined by calculating, and be ensured rare
Meeting prefabricated post encased steel plate upper end under earthquake load, nearby column section will not destroy.
Claims (8)
1. a kind of assembled heel join node, include the prefabricated reinforced concrete column on the top of vertical corresponding splicing（1）With under
The reinforced concrete foundation in portion（2）, the prefabricated reinforced concrete column（1）Inside it is embedded with vertical along the anchoring of the shaft post of uniform one week
Muscle（3）And grout sleeve（4）, the reinforced concrete foundation（2）Inside it is embedded with foundation anchor reinforcing bar（6）, the foundation anchor
Reinforcing bar（6）Vertical muscle is anchored with post（3）Pass through grout sleeve（4）The gap-grouting material being inside full of（7）Connection, reinforced concrete foundation
（2）And prefabricated reinforced concrete column（1）Gap-grouting material has been also filled with splicing seams（7）,
It is characterized in that：The foundation anchor reinforcing bar（6）It is L-shaped, including vertical part（8）And horizontal part（9）, the vertical part, which is divided into, stretches
Go out reinforced concrete foundation（2）Upper surface upper anchorage section（81）, middle part soap-free emulsion polymeization section in buried foundation（82）With under
Portion's anchoring section（83）, the upper anchorage section（81）Stretch into grout sleeve（4）It is interior to indulge muscle with post anchoring（3）Connection, middle part is without viscous
Tie section（82）With base concrete soap-free emulsion polymeization, lower anchor section（83）And horizontal part（9）With base concrete bond-anchorage,
The middle part soap-free emulsion polymeization section（82）Outside be provided with isolate its insulating kit with concrete binding（10）, the separation sleeve
Part（10）Top surface and reinforced concrete foundation（2）Upper surface it is concordant.
2. assembled heel join node according to claim 1, it is characterised in that：The middle part soap-free emulsion polymeization section（82）'s
Length is 3 times to 20 times of bar diameter.
3. assembled heel join node according to claim 1 or 2, it is characterised in that：The insulating kit（10）For
Hard sleeve, the plastic tube or steel pipe of middle part soap-free emulsion polymeization section diameter, or the insulating kit are more than using internal diameter（10）For
The plastics layer of cloth of this section is wrapped up after the soap-free emulsion polymeization section full coat special anti-corrosion lubricant grease of middle part again.
4. assembled heel join node according to claim 3, it is characterised in that：The middle part soap-free emulsion polymeization section（82）On
Provided with necking section（821）, the necking section（821）Cross-sectional area decrement for former area of section 50%-90%, the separation sleeve
Part（10）For hard sleeve.
5. assembled heel join node according to claim 4, it is characterised in that：The necking section is to be added by cutting
The section that work is formed weakens, and the section weakens by the way of weakening section steel area diameter is reduced or using cutting reinforcing bar
Upper and lower sides or left and right sides form the mode of breach.
6. the assembled heel join node according to claim 4 or 5, it is characterised in that：The necking section（821）On stay
Non- constriction stretch section provided with least one non-machining（822）, the non-constriction stretch section（822）It is distributed on necking section
（821）On, each non-constriction stretch section（822）Total length is not more than necking section（821）The half of total length.
7. assembled heel join node according to claim 1, it is characterised in that：The grout sleeve（4）It is side wall
On without grouting port, be provided only with grout outlet（11）The sleeve without independent grouting port form, the prefabricated reinforced concrete column（1）Open
There is slurry stream circulation passage in a post（12）, total grouting port is formed outside one end connection side wall of slurry stream circulation passage in the post
（5）, other end connection reinforced concrete foundation（2）And prefabricated reinforced concrete column（1）Splicing seams, the splicing seams form grouting
Sleeve（4）The outer slurry circulation passage of post, gap-grouting material（7）From total grouting port（13）Pour into by slurry stream circulation passage in post
（12）Full of splicing seams, then full of each grout sleeve（4）And from grout outlet（11）Outflow.
8. assembled heel join node according to claim 7, it is characterised in that：Slurry stream circulation passage in the post
（12）In inverted L-shaped, including horizontal channel（121）And vertical passageway（122）, the horizontal channel（121）Connect outside side wall, erect
To passage（122）Connect splicing seams, vertical passageway（122）Positioned at prefabricated reinforced concrete column（1）Vertical axis on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720631414.3U CN207176718U (en) | 2017-06-02 | 2017-06-02 | A kind of assembled heel join node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720631414.3U CN207176718U (en) | 2017-06-02 | 2017-06-02 | A kind of assembled heel join node |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207176718U true CN207176718U (en) | 2018-04-03 |
Family
ID=61734681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720631414.3U Expired - Fee Related CN207176718U (en) | 2017-06-02 | 2017-06-02 | A kind of assembled heel join node |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207176718U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842914A (en) * | 2018-08-08 | 2018-11-20 | 中国恩菲工程技术有限公司 | Steel column foot node |
| WO2018219196A1 (en) * | 2017-06-02 | 2018-12-06 | 中国建筑股份有限公司 | Precast column base joint and construction method therefor |
| CN114439117A (en) * | 2021-12-28 | 2022-05-06 | 安徽省建筑科学研究设计院 | Construction method of cast-in-situ column base node containing energy consumption section steel bar |
-
2017
- 2017-06-02 CN CN201720631414.3U patent/CN207176718U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018219196A1 (en) * | 2017-06-02 | 2018-12-06 | 中国建筑股份有限公司 | Precast column base joint and construction method therefor |
| US11293183B2 (en) | 2017-06-02 | 2022-04-05 | China State Construction Engineering Corporation Limited | Precast column base joint and construction method therefor |
| CN108842914A (en) * | 2018-08-08 | 2018-11-20 | 中国恩菲工程技术有限公司 | Steel column foot node |
| CN108842914B (en) * | 2018-08-08 | 2024-01-05 | 中国恩菲工程技术有限公司 | Steel column foot node |
| CN114439117A (en) * | 2021-12-28 | 2022-05-06 | 安徽省建筑科学研究设计院 | Construction method of cast-in-situ column base node containing energy consumption section steel bar |
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Granted publication date: 20180403 Termination date: 20210602 |