CN206273875U - A kind of attachment structure of prefabricated bent cap and prefabricated stand column - Google Patents
A kind of attachment structure of prefabricated bent cap and prefabricated stand column Download PDFInfo
- Publication number
- CN206273875U CN206273875U CN201621397480.0U CN201621397480U CN206273875U CN 206273875 U CN206273875 U CN 206273875U CN 201621397480 U CN201621397480 U CN 201621397480U CN 206273875 U CN206273875 U CN 206273875U
- Authority
- CN
- China
- Prior art keywords
- stand column
- prefabricated
- prefabricated stand
- link slot
- bent cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
A kind of attachment structure of prefabricated bent cap and prefabricated stand column, including prefabricated stand column and prefabricated bent cap, preform lid erection is on prefabricated stand column, prefabricated bent cap is provided with link slot, lower ending opening of the upper end open of link slot more than link slot, also, the area of lower ending opening is less than the upper surface area of prefabricated stand column；Some presstressed reinforcing steels are embedded with prefabricated stand column, presstressed reinforcing steel stretches out prefabricated stand column certain length, and the presstressed reinforcing steel for stretching out is distributed in link slot in bell mouth shape, and ultra-high performance concrete is filled in link slot.Construction technology of the present utility model is simple, construction precision low, the safe and reliable, efficient quick of requirement, and rapid construction is significant.
Description
Technical field
The utility model is related to engineering bridge technical field, more particularly to a kind of prefabricated bent cap and prefabricated stand column connection knot
Structure.
Background technology
As wideling popularize for precast concrete begins to use precast assembly skill with development, domestic many architectural engineerings
Art, is constructed by being engineered production and assembled in situ, is capable of achieving the construction objects such as safety durable, quick construction, low-carbon environment-friendly, can
Building waste and building sewage is greatly decreased, building noise is reduced, construction quality is improved, as the green ring that country advocates energetically
Protect energy saving building.For precast assembly bridge pier, node connecting portion is the weak link in whole bridge pier, if treatment is not
When, easily cause to be destroyed under high-intensity earthquake, therefore for this key position need pay special attention to.
Normal concrete is vibrated coagulation in construction as a kind of porous heterogeneous material with instruments such as shock clubs
Soil, so as to concrete compaction, but has leaked or has shaken if shaking, and just occurs that the quality such as cavity, honeycomb, pitted skin lack
Fall into, ultra-high performance concrete (UHPC) has the advantages that Self-leveling and high intensity can overcome these normal defects.UHPC is promoted
Using the effective way for being reinforcing energy-saving and emission-reduction, Air Pollution prevention and control, it is possible to increase construction quality, extend Building life cycle, carry
Ability of preventing and reducing natural disasters is risen, is conducive to promoting the adjustment of cement industry structure.Although high performance concrete cost is slightly higher, but if only
It is to be applied topically to key position, cost performance higher can be obtained.
Fixed press anchorage product is ripe, extensive use.The class of the arrangement of fixed press anchorage and common stretching end anchorage
Together, directly can be embedded into concrete.Larger in the strain of areas of plasticity hinge reinforcing bar, reinforcing bar easily enters yield situation, if
Plastic hinge this regional area uses presstressed reinforcing steel, because its intensity is high, presstressed reinforcing steel can be delayed to enter yield situation, can make
Precast pier has self-resetting capability.During the seismic loading being subjected in future, can cause that the residual displacement of bridge pier is smaller, carry
High anti-seismic ability.
Utility model content
In view of the drawbacks described above that prior art is present, the utility model provides the company of a kind of prefabricated bent cap and prefabricated stand column
Binding structure.
To achieve these goals, the technical scheme that the utility model is used is：
The attachment structure of a kind of prefabricated bent cap and prefabricated stand column, including prefabricated stand column and prefabricated bent cap, the prefabricated bent cap
It is erected on the prefabricated stand column, the prefabricated bent cap is provided with link slot, the upper end open of the link slot is more than the connection
The lower ending opening of groove, also, the lower ending opening area less than the prefabricated stand column upper surface area；The prefabricated stand column
Some presstressed reinforcing steels are inside embedded with, the presstressed reinforcing steel stretches out the prefabricated stand column certain length, the presstressed reinforcing steel for stretching out
It is distributed in the link slot in bell mouth shape, ultra-high performance concrete is filled in the link slot.
Preferably, the presstressed reinforcing steel is distributed and in the presstressed reinforcing steel in a ring on the cross section of the prefabricated stand column
The outer steel bar stress for being equipped with annular spread.
Preferably, the presstressed reinforcing steel is embedded in the prefabricated stand column by fixed press anchorage.
Preferably, the presstressed reinforcing steel uses prestress wire.
Preferably, passing through epoxy resin between the bottom of the edge of the upper surface of the prefabricated stand column and the prefabricated bent cap
Layer connection.
A kind of specific implementation step of the attachment structure of prefabricated bent cap and prefabricated stand column is：
1) preparation of prefabricated stand column；
2) preparation of prefabricated bent cap；
3) epoxy lipid layer is applied at the edge of the top surface of prefabricated stand column, then by preform lid erection on prefabricated stand column, and
The presstressed reinforcing steel that prefabricated stand column will be stretched out all is embedded in link slot, and prefabricated bent cap is positioned；
4) after prefabricated bent cap is properly positioned, the presstressed reinforcing steel colligation that will be stretched out is distributed in link slot into bell mouth shape,
Then to pouring into ultra-high performance concrete in link slot；
5) after pouring into ultra-high performance concrete in link slot, when the ultra-high performance concrete in link slot reaches design by force
Degree more than 100% when, tensioning is carried out to prestress wire with post stretching, then carry out sealing off and covering anchorage.
The Advantageous Effects brought using above-mentioned technical proposal are：
The utility model is by using presstressed reinforcing steel so that node district stress performance is greatly improved；
The utility model makes full use of high-strength prestress steel strand wires, and join domain has Self-resetting in the case of large deformation
Ability and its flexible performance is good, construction precision requirement is relatively low；
The utility model pours into grout sleeve and link slot using ultra-high performance concrete UHPC, is taken full advantage of in construction
The high fluidity of ultra-high performance concrete and good anti-isolation, Qinshui ability, on the other hand its microdilatancy having characteristic,
The reliability of connection can be strengthened；
Construction technology of the present utility model is simple, construction precision low, the safe and reliable, efficient quick of requirement, to rapid construction
It is significant.
Brief description of the drawings
Fig. 1 is the facade layout drawing of the attachment structure of the prefabricated bent cap and prefabricated stand column of the embodiment of the utility model one；
Fig. 2 is the plan of the prefabricated bent cap of the embodiment of the utility model one；
Fig. 3 is the elevation of the prefabricated bent cap of the embodiment of the utility model one；
Fig. 4 is the I-I sectional views in Fig. 3；
Fig. 5 is the steel bar stress structural map of the prefabricated stand column of the embodiment of the utility model one；
Fig. 6 is the presstressed reinforcing steel layout drawing of the prefabricated stand column of the embodiment of the utility model one；
Fig. 7 is the elevation of the prefabricated stand column of the embodiment of the utility model one；
Fig. 8 is the II-II sectional views in Fig. 7；
Fig. 9 is the welding figure of the prefabricated bent cap top steel bar stress of the embodiment of the utility model one.
In figure, the prefabricated bent caps of 1-；2- prefabricated stand columns；3- link slots；4- stirrups；5- presstressed reinforcing steels；6- fixed press anchorages；
7- epoxy resin layers；The steel bar stresses of 10- first；The steel bar stresses of 11- second.
Specific embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Each implementation method of type is explained in detail.
Please comprehensive reference Fig. 1-9, a kind of attachment structure of prefabricated bent cap and prefabricated stand column, including prefabricated stand column 2 and prefabricated
Bent cap 1, prefabricated bent cap 1 is erected on prefabricated stand column 2, and link slot 3 is provided with prefabricated bent cap 1, and the upper end open of link slot 3 is more than
The lower ending opening of link slot 3, also, lower ending opening area less than prefabricated stand column 2 upper surface area, be that prefabricated bent cap 1 hangs
Fulcrum is provided during dress；Some presstressed reinforcing steels 5 are embedded with prefabricated stand column 2, presstressed reinforcing steel 5 stretches out the certain length of prefabricated stand column 2,
The presstressed reinforcing steel 5 for stretching out is distributed in link slot 3 by the colligation of stirrup 4 into bell mouth shape, and UHPC is filled in link slot 3.The design
It is middle to use the presstressed reinforcing steel 5 with high-yield strength, in the case of the occurred level displacement of prefabricated bent cap 1, areas of plasticity hinge tool
There is self-resetting capability, so prefabricated bent cap 1 and prefabricated stand column 2 connect more reliable, safety；Poured into by toward link slot 3 is interior
The characteristics of UHPC, self-compaction uniform using UHPC, prestress wire can be made to be fully contacted with the link slot 3 of prefabricated bent cap 1,
Stress performance is improved, the safety of engineering has been ensured.
Presstressed reinforcing steel 5 uses prestress wire, prestress wire to be embedded in prefabricated stand column by fixed press anchorage 6
In 2.Fixed press anchorage 6 includes fixed anchor slab and extruded sleeve, and the head of prestress wire puts extruded sleeve, by special machine
Tool extruding, makes extruded sleeve be held with a firm grip prestress wire after producing plastic deformation, and a relay of prestressed steel strand wires is by extruding
Set passes to component, i.e. prefabricated stand column 2 by fixed anchor slab.
(such as Fig. 1 is connected by epoxy resin layer 7 between the bottom of the edge of the upper surface of prefabricated stand column 2 and prefabricated bent cap 1
It is shown).
Presstressed reinforcing steel 5 is distributed and is equipped with annular point in the outer of presstressed reinforcing steel 5 in a ring on the cross section of prefabricated stand column 2
Second steel bar stress 11 (as shown in Figure 7 and Figure 8) of cloth.
The outer of the cross-sectional area of prefabricated bent cap 1 is uniformly equipped with the first steel bar stress 10 (as shown in figures 4 and 9).
A kind of specific implementation step of the attachment structure of prefabricated bent cap and prefabricated stand column is：
1) preparation of prefabricated stand column 2；
2) preparation of prefabricated bent cap 1；
3) epoxy lipid layer is applied at the edge of the top surface of prefabricated stand column 2, then prefabricated bent cap 1 is erected on prefabricated stand column 2,
And the presstressed reinforcing steel 5 for stretching out prefabricated stand column 2 is all embedded in link slot 3, and prefabricated bent cap 1 is positioned；
4) after prefabricated bent cap 1 is properly positioned, the presstressed reinforcing steel 5 in the link slot 3 of prefabricated bent cap 1 is in loudspeaker by stirrup 4
Mouthful shape distribution colligation, and first steel bar stress 10 on the top of prefabricated bent cap 1 is welded, then to being poured into link slot 3
UHPC；
5) after perfusion UHPC in link slot 3, when the UHPC in link slot 3 reaches more than the 100% of design strength, use
Post stretching carries out tensioning to prestress wire, and sealing off and covering anchorage is then carried out again.
The advantage of do so, on the one hand further improves self-resetting capability；The concrete pulling of another aspect areas of plasticity hinge
Stress very little, easily cracking, after tensioning, using the prior partial prestressing for applying, can improve the cracking lotus of areas of plasticity hinge
Carry, improve service behaviour.
The above, only the utility model preferably specific embodiment, but protection domain of the present utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model is disclosed
Change or replacement, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should
It is defined by scope of the claims.
Claims (5)
1. the attachment structure of a kind of prefabricated bent cap and prefabricated stand column, it is characterised in that：It is described including prefabricated stand column and prefabricated bent cap
On the prefabricated stand column, the prefabricated bent cap is provided with link slot to preform lid erection, and the upper end open of the link slot is more than
The lower ending opening of the link slot, also, the lower ending opening area less than the prefabricated stand column upper surface area；It is described
Some presstressed reinforcing steels are embedded with prefabricated stand column, the presstressed reinforcing steel stretches out the prefabricated stand column certain length, and that stretches out is described
Presstressed reinforcing steel is distributed in the link slot in bell mouth shape, and ultra-high performance concrete is filled in the link slot.
2. attachment structure as claimed in claim 1, it is characterised in that：The presstressed reinforcing steel is in the cross section of the prefabricated stand column
On in a ring distribution and in the outer steel bar stress for being equipped with annular spread of the presstressed reinforcing steel.
3. attachment structure as claimed in claim 1, it is characterised in that：The presstressed reinforcing steel is embedded in by fixed press anchorage
In the prefabricated stand column.
4. attachment structure as claimed in claim 1, it is characterised in that：The presstressed reinforcing steel uses prestress wire.
5. attachment structure as claimed in claim 1, it is characterised in that：The edge of the upper surface of the prefabricated stand column and described pre-
Connected by epoxy resin layer between the bottom of bent cap processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621397480.0U CN206273875U (en) | 2016-12-19 | 2016-12-19 | A kind of attachment structure of prefabricated bent cap and prefabricated stand column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621397480.0U CN206273875U (en) | 2016-12-19 | 2016-12-19 | A kind of attachment structure of prefabricated bent cap and prefabricated stand column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206273875U true CN206273875U (en) | 2017-06-23 |
Family
ID=59063342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621397480.0U Expired - Fee Related CN206273875U (en) | 2016-12-19 | 2016-12-19 | A kind of attachment structure of prefabricated bent cap and prefabricated stand column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206273875U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106498847A (en) * | 2016-12-19 | 2017-03-15 | 上海应用技术大学 | A kind of prefabricated bent cap and attachment structure and the method for attachment of prefabricated stand column |
| CN108660865A (en) * | 2017-03-31 | 2018-10-16 | 比亚迪股份有限公司 | Prefabricated bent cap, rail support structures and its manufacturing method of rail support structures |
| CN113957800A (en) * | 2020-12-29 | 2022-01-21 | 中铁大桥局集团第六工程有限公司 | Synchronous installation method for prestressed steel bundles and prefabricated pier segments |
-
2016
- 2016-12-19 CN CN201621397480.0U patent/CN206273875U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106498847A (en) * | 2016-12-19 | 2017-03-15 | 上海应用技术大学 | A kind of prefabricated bent cap and attachment structure and the method for attachment of prefabricated stand column |
| CN106498847B (en) * | 2016-12-19 | 2019-01-22 | 上海应用技术大学 | A kind of connection structure and connection method of prefabricated bent cap and prefabricated stand column |
| CN108660865A (en) * | 2017-03-31 | 2018-10-16 | 比亚迪股份有限公司 | Prefabricated bent cap, rail support structures and its manufacturing method of rail support structures |
| CN108660865B (en) * | 2017-03-31 | 2020-08-07 | 比亚迪股份有限公司 | Prefabricated bent cap of rail supporting structure, rail supporting structure and manufacturing method of rail supporting structure |
| CN113957800A (en) * | 2020-12-29 | 2022-01-21 | 中铁大桥局集团第六工程有限公司 | Synchronous installation method for prestressed steel bundles and prefabricated pier segments |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105780935B (en) | Prefabricated assembled steel tube confinement energy consumption connecting node and construction method | |
| CN106498847B (en) | A kind of connection structure and connection method of prefabricated bent cap and prefabricated stand column | |
| CN206737141U (en) | A kind of bolt connection assembled integral node | |
| CN106988483A (en) | A kind of assembled steel reinforced Concrete U Vierendeel girder and its construction method | |
| CN206273875U (en) | A kind of attachment structure of prefabricated bent cap and prefabricated stand column | |
| CN103711330B (en) | A kind of prestressing force assembling precast reinforced concrete frame reinforces the method for existing structure | |
| CN206844314U (en) | A kind of new prefabricated assembled bean column node | |
| CN106758786A (en) | A kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier | |
| CN204983306U (en) | Amalgamation prefabricated plate | |
| CN205894313U (en) | Prefabricated assembled steel pipe retrains frame node entirely | |
| CN207919748U (en) | A kind of high ductility concrete beam and column node of assembled | |
| CN206941858U (en) | Band is encorbelmented the structure of attached prestressing force assembled power consumption frame strengthening outside plate framework | |
| CN106836490A (en) | A kind of prestressing force assembled high-performance concrete-filled steel square tubular column concrete girder connection and its construction method | |
| CN109853364A (en) | A kind of the precast segment assembly bridge pier connection structure and method of shearing resistance | |
| CN109653350B (en) | Mixed reinforcement embedded low-prestress dry beam column node and method | |
| CN208701729U (en) | A kind of offshore wind farm High-Rise Pile Cap Foundation using prefabricated cushion cap | |
| CN105275096A (en) | Prefabricated pieced two-way slab construction method | |
| CN109372107A (en) | The prefabricated assembled beam column crisscross joint of soap-free emulsion polymeization | |
| CN209924484U (en) | Device with sleeve prefabricated part for reinforcing damaged reinforced concrete column | |
| CN210216126U (en) | Pier connection structure is assembled in prefabricated section of cutting | |
| CN206941799U (en) | The prestressing force assembling type node construction of beam-ends friction energy-dissipating | |
| CN111155677B (en) | Raw soil brick masonry structure with core column and construction method thereof | |
| CN102535747A (en) | Multi-cavity concrete-filled steel tube column with angle bars bonded and welded at corners and reinforcing cages arranged in cavities and construction method of multi-cavity concrete-filled steel tube column | |
| CN104652430A (en) | Composite reinforcement partially prestressed concrete solid square pile and manufacturing method thereof | |
| CN208088500U (en) | A kind of prefabricated beam column crimping joint strengthening stirrup construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170623 Termination date: 20181219 |