CN209443571U - A kind of large span fabricated construction self-balancing tenon-prestressing combination connecting node - Google Patents
A kind of large span fabricated construction self-balancing tenon-prestressing combination connecting node Download PDFInfo
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- CN209443571U CN209443571U CN201821711989.7U CN201821711989U CN209443571U CN 209443571 U CN209443571 U CN 209443571U CN 201821711989 U CN201821711989 U CN 201821711989U CN 209443571 U CN209443571 U CN 209443571U
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Abstract
The utility model discloses a kind of large span fabricated construction self-balancing tenon-prestressing combination connecting nodes, belong to engineering structure industrialization building technology field；The node includes two end to end precast concrete A and B.Precast concrete A and precast concrete B is provided with prefabricated tenon type component, reserves prestressed pore passage, and assembled seam between the two is connected by tenon type component, presstressed reinforcing steel with cement.The utility model simple structure, joints can be realized self-balancing, it can solve the FAQs of the assembling type nodes such as the bending resistance deficiency of insufficient, the single feather joint mode of shear resistance of single presstressed reinforcing steel connection type, the phenomenon that avoiding monoblock type prestressed constructions from needing nuisance operation space, it can provide effective initial precompression and facilitate splicing, and effectively improve the anti-seismic performance and waterproof performance of node.The components such as precast beam, plate, the column of assembled arthitecutral structure and bridge structure high suitable for anti-seismic performance and waterproof performance requirement.
Description
Technical field
Have Self-balancing, anti-seismic performance good and anti-for large span fabricated construction the utility model relates to a kind of
The excellent tenon of outlet capacity-prestressing combination connecting node belongs to industrialization building technology field.
Background technique
There are problems, such as dust to be difficult to control for cast-in-place concrete construction, noise pollution；Mould material consumption is big；It applies
Worker person is more, and hand labour is more, large labor intensity；Speed of application is slow, and the construction period is long, big by effect of natural conditions；Concrete
Appearance and quality control are difficult；The construction material at scene wastes serious etc..
Compared with cast-in-place mode, fabricated construction major part component improves the factorial production using prefabricated, has coagulation
Soil is quality controllable, and noise pollution and environmental pollution are small, and site operation template is using less, and live construction material waste is few, labour
The advantages that demand is small, and construction speed is fast, does not influence ground use space.
In view of the technological merit of fabricated construction, it is many country all element precast be turned to technology development one it is important
Mark.The degree of element precast is higher, and technical level is also higher.Element precast is also the development of production-line style construction technology simultaneously
Inexorable trend, be improve construction quality and accelerate build speed, reduce engineering cost main method.Assembled underground structure
Also become the important selection of underground engineering structure, the underground structure implemented and applied on a large scale at present includes assembled underground
Piping lane, assembled underpass, assembled subway tunnel and platform, assembled arthitecutral structure subterranean layer etc..
There are many problems for the existing assembly concrete architectural construction technology in China.Such as to the connection between prefabricated section
Treatment research is still not perfect, and the existing main Transfer of Shear of assembled connecting node, bending resistance, anti-seismic performance are poor, are only applicable to
Mid and minor spans structure, beam slab lap-joint and flexure stress smaller part, and be not suitable for Large-span Precast concrete bridge structure and build
Building structure, especially anti-seismic performance and waterproof performance requirement are high, maintain difficult large span assembled underground structure (including
Underpass, underground pipe gallery, tunnel, urban track traffic etc.).It is therefore proposed that with good durability, excellent anti-seismic performance
Novel fabricated connecting node has significant theory significance and practical application value.
Utility model content
In order to solve fabricated construction, especially large span fabricated construction connecting node durability is poor, shock resistance, waterproof
Property it is insufficient the problems such as, the utility model patent provide a kind of simple structure, it is easy for construction and it is reliable, there is Self-balancing,
Bending resistance, antitorque, shear behavior is good, is particularly suitable for self-balancing tenon-prestressing combination connecting node of large span fabricated construction.
To achieve the goals above, the utility model takes following technical solution.
A kind of large span fabricated construction self-balancing tenon-prestressing combination connecting node, including precast concrete A and
Precast concrete B, precast concrete A and precast concrete B join end to end；Precast concrete A and pre-
Concrete component B processed is provided with prefabricated tenon type component (1), and reserved prestressed pore passage (3), precast concrete A and prefabricated
Assembled seam (2) between concrete component B passes through tenon type component (1), presstressed reinforcing steel (5) and cement (6) connection.It is glued
Agent (6) full-filling is in assembled seam (2).Several are provided in precast concrete A and precast concrete B along oblique
To the prestressed pore passage (3) for the lower surface for being through to precast concrete B from the upper surface of precast concrete A.It answers in advance
Power muscle (5) is set in prestressed pore passage (3), using post-tensioned construction, required according to construction section using unidirectional tensioning or
Two directions tension.Presstressed reinforcing steel (5) diagonally connects precast concrete A with precast concrete B.Presstressed reinforcing steel anchor
Permanent tooth plate (4) is set in precast concrete A and precast concrete structure B and connect with the end of presstressed reinforcing steel (5), with mixed
Solidifying soil or the closing of other sealing materials.
Tenon type component (1) can balance the shearing of imbalance caused by the tensioning of presstressed reinforcing steel (5), avoid traditional prestressing force
The disadvantage of the anti-shearing deformability difference of connecting node；Presstressed reinforcing steel (5) can be the cement in assembled seam (2) simultaneously
(6) certain normal pressure is provided, connects precast concrete A and precast concrete structure as cement in work progress (6)
Normal pressure needed for part B improves the switching performance of cement (6)；In tenon type component (1), presstressed reinforcing steel (5) and assembled seam
(2) under combination condition of contact, a kind of large span fabricated construction self-balancing tenon-prestressing combination connecting node has
Excellent waterproof performance and anti-seismic performance.
Precast concrete A and precast concrete structure B includes tenon type component (1), prestressed pore passage (3), prestressing force
Muscle (5).Tenon type component (1) includes tenon type splicing tooth and tenon type groove, the tenon type splicing tooth of precast concrete A with it is prefabricated
The tenon type groove of concrete structure B corresponds.
Position, quantity and the spacing of prestressed pore passage (3) determined by node present position and its actual loading size,
And the main reinforcement position that is staggered；Presstressed reinforcing steel (5) is arranged symmetrically along the geometric center of precast concrete A and precast concrete structure B
With symmetrical tensioning.
The stretching control force of presstressed reinforcing steel (5) and the tilt angle of prestressed pore passage (3) are big according to required compressive pre-stress
Small and construction interface determines, increases (when tenon type component shear resistance is stronger) when the sectional dimension of tenon type component (1) is larger and inclines
Rake angle and stretching control force is improved, with operating space needed for reducing pre-stress construction；
The tenon type component (1), the section form of tenon type component (1) are rectangle, triangle or arc-shaped, tenon type component
(1) bending resistance reinforcing bar (1-1), shear reinforcement (1-2) and stirrup (1-3) are provided in, tenon type splices bending resistance reinforcing bar (1-1) at tooth
Thickness of concrete cover is not less than 30mm, and stirrup (1-3) is equidistantly distributed on bending resistance reinforcing bar (1-1)；Tenon type splices at tooth
It is disposed with shear reinforcement (1-2) identical with prestress hole road inclination, balances prestressed ability to improve tenon type component；Tenon
Type, which splices the corresponding inside grooves of tooth, is furnished with bending resistance reinforcing bar (1-1), and the thickness of concrete cover at bending resistance reinforcing bar (1-41) is not
Lower than 30mm.
Assembled seam (2) width is 5mm~30mm, and cement (6) uses building mortar, higher aliphatic acids
The materials such as waterproofing agent are mixed.
Such combination connecting node is connected suitable for vertical, horizontal, is applicable not only to large span assembled underpass, pipe
The underground structures such as corridor, immersed tube tunnel are equally applicable to the components such as the beam, plate, column of assembled arthitecutral structure and bridge structure.
Compared with prior art, as follows the advantages of the utility model:
(1) the utility model combines prestressing force connection, mortise-tenon joint, splicing, under outer load action, passes through tenon type
The common stress of component and presstressed reinforcing steel, node point connection can achieve self-balancing state, can solve single presstressed reinforcing steel connection
The FAQs of the assembling type nodes such as the bending resistance deficiency of insufficient, the single feather joint mode of the shear resistance of mode, and significantly mention
The anti-seismic performance and waterproof performance of high connecting node；
(2) the prestressing force connection that the utility model uses may be implemented to be effectively reduced in localized tendon prestressing force
Tension operation interface, and then can be to avoid the raising because of project cost caused by expanding operating surface；
(3) tensioned prestressing bar can provide initial precompression in component contact surface, facilitate and be glued between beam section, and at certain
Avoided in kind of degree in use joint there is tensile stress phenomenon, improve durability and leakage performance；
(4) such combination connecting node vertical, horizontal connection can be used, and be applicable not only to Mid and minor spans and Long span assembly
Formula underpass, piping lane, immersed tube tunnel structure etc., while the assembled architecture knot for being suitable for having higher requirements to waterproof, antidetonation
The components such as structure and the beam of bridge structure, plate, column.
Detailed description of the invention
Fig. 1 is a kind of section schematic diagram of large span fabricated construction self-balancing tenon-prestressing combination connecting node；
Fig. 2 is a kind of floor map of large span fabricated construction self-balancing tenon-prestressing combination connecting node；
Fig. 3 is the section schematic diagram of precast concrete；
Fig. 4 be presstressed reinforcing steel anchor tooth plate it is hidden treated combination connecting node section schematic diagram；
Fig. 5 is a kind of section schematic diagram of assembly concrete column tenon-prestressing combination connecting node；
Fig. 6 is a kind of assembly concrete column tenon-prestressing combination connection section that presstressed reinforcing steel anchors the hidden processing of tooth plate
The section schematic diagram of point；
In figure: resisting at precast concrete A, precast concrete B, 1-tenon type component, 1-1-tenon type splicing tooth
Shear reinforcement, 1-3-tenon type splice stirrup at tooth, resist at 1-4-tenon type member recess at bar bending, 1-2-tenon type splicing tooth
Bar bending, 2-assembled seams, 3-prestressed pore passages, 4-presstressed reinforcing steels anchor tooth plate, 5-presstressed reinforcing steels, 6-cements.
Specific embodiment
The specific embodiment that according to the present invention will be described in detail below with reference to the accompanying drawings.
Embodiment 1:
As shown in FIG. 1 to 3, a kind of assembled self-balancing tenon-prestressing combination connection for Large Span Underground channel
Node, including it is top plate precast concrete A, top plate precast concrete B, tenon type component (1), assembled seam (2), pre-
Stress duct (3), presstressed reinforcing steel anchor tooth plate (4), presstressed reinforcing steel (5), cement (6).
Top plate precast concrete A and top plate precast concrete B size be 2m (transverse direction) × 1m (height) ×
15m (span direction)；It is 0.3m × 0.3m × 2m (transverse direction) that tenon type component (1), which splices teeth size, it is contemplated that assembled seam (2)
Widths affect, tenon type component (1) tenon type groove size are 0.32m × 0.32m × 2m (transverse direction), same precast concrete
On tenon type splicing tooth and tenon type groove spacing be 0.2m；Assembled seam (2) width is 10mm；Prestressed pore passage (3) is from structure
The upper surface of part A is through to the lower surface of component B, is laterally arranged symmetrically along component with 0.3m spacing, 6 groups is arranged altogether, duct is inclined
Angle is 45 °；12 presstressed reinforcing steel anchorings tooth plate (4) are respectively arranged at the top plate upper and lower surfaces of component A and component B；Component A
The setting (lashing) of presstressed reinforcing steel (5) is completed after lifting in place with component B first, and smears and is glued at assembled seam (2)
Agent (6)；Cement (6) carries out the docking of tenon type structure after smearing；Symmetrical tensioning yield stress is 1860MPa after the completion of docking
1 × 7 Φs15.2 presstressed reinforcing steels (5), control stress for prestressing 0.75fpk=1395Mpa；Prestress hole is carried out after the completion of tensioning
Road slip casting, sealing off and covering anchorage work；It is finally filled in cement (6) in seam external complement, cement (6) uses building mortar, advanced rouge
The materials such as fat acids waterproofing agent are mixed.
As shown in figure 4, prefabricated components biggish for sectional dimension, presstressed reinforcing steel anchoring tooth plate (4) can use hidden
Processing is set to prefabricated components top, in bottom plate, and with concrete or sealing material closing.
Embodiment 2:
As shown in figure 5, a kind of assembled self-balancing tenon-prestressing combination connection section for assembled arthitecutral structure column
Point, including precast concrete A, precast concrete B, tenon type component (1), assembled seam (2), prestressed pore passage
(3), presstressed reinforcing steel anchors tooth plate (4), presstressed reinforcing steel (5), cement (6).
Precast concrete A and precast concrete B size are 0.6m (length) × 0.6m (width) × 5m (height)；
Tenon type component (1) includes the arc-shaped splicing tooth of diameter 0.18m and the circular groove that diameter is 0.19m, on same component
Tenon type splices tooth and tenon type groove spacing is that the tenon type splicing tooth of 0.2m, component A and component B and tenon type groove correspond；Dress
It is 5mm with formula seam (2) width；Prestressed pore passage (3) is through to the right surface of component B from the left surface of component A, wide along component
Degree direction is arranged symmetrically with 0.2m spacing, 2 groups is arranged altogether, hole road inclination is 30 ° (with pillar height degree angular separation)；Four prestressing force
Muscle anchoring tooth plate (4) is respectively arranged at the left and right surfaces of precast concrete；Presstressed reinforcing steel (5) is in component assembled seam
(2) it is preset before smearing cement (6), cement (6) carries out presstressed reinforcing steel (5) using post stretching symmetrical after smearing
Tensioning, presstressed reinforcing steel (5) are 1 × 7 Φ that yield stress is 1670MPas12.7 prestress wires, control stress for prestressing are
0.5fpk=835Mpa；Prestressed pore passage slip casting, sealing off and covering anchorage work are carried out after the completion of tensioning；Finally glue is filled in seam external complement
It connects agent (6), cement (6) is mixed using materials such as building mortar, higher aliphatic acids waterproofing agents.
As shown in fig. 6, precast column unit biggish for sectional dimension, presstressed reinforcing steel anchoring tooth plate (4) can use hidden
It covers processing to be set in prefabricated components, and is closed with concrete or sealing material.
The above is only the preferred embodiment of the utility model patent, but the implementation of the utility model patent is not limited to
This.
Claims (6)
1. a kind of large span fabricated construction self-balancing tenon-prestressing combination connecting node, it is characterised in that: including concrete
Native component A and precast concrete B, precast concrete A and precast concrete B join end to end；Precast concrete
Component A and precast concrete B is provided with prefabricated tenon type component (1), and reserved prestressed pore passage (3), precast concrete structure
Assembled seam (2) between part A and precast concrete B passes through tenon type component (1), presstressed reinforcing steel (5) and cement (6)
Connection；Cement (6) full-filling is in assembled seam (2)；It is provided in precast concrete A and precast concrete B
The prestress hole of several lower surfaces for being diagonally through to precast concrete B from the upper surface of precast concrete A
Road (3)；Presstressed reinforcing steel (5) is set in prestressed pore passage (3), using post-tensioned construction, is required according to construction section using single
To tensioning or two directions tension；Presstressed reinforcing steel (5) diagonally connects precast concrete A with precast concrete B；In advance
Stress rib anchoring tooth plate (4) is set in precast concrete A and precast concrete structure B and the end with presstressed reinforcing steel (5)
Connection, uses concrete enclosing.
2. a kind of large span fabricated construction self-balancing tenon-prestressing combination connecting node according to claim 1, special
Sign is: tenon type component (1) includes tenon type splicing tooth and tenon type groove, the tenon type splicing tooth of precast concrete A with it is prefabricated
The tenon type groove of concrete structure B corresponds.
3. a kind of large span fabricated construction self-balancing tenon-prestressing combination connecting node according to claim 1, special
Sign is: presstressed reinforcing steel (5) is arranged symmetrically along the geometric center of precast concrete A and precast concrete structure B and symmetrically opens
It draws.
4. a kind of large span fabricated construction self-balancing tenon-prestressing combination connecting node according to claim 1, special
Sign is: the tenon type component (1), and the section form of tenon type component (1) is rectangle, triangle or arc-shaped.
5. a kind of large span fabricated construction self-balancing tenon-prestressing combination connecting node according to claim 1, special
Sign is: bending resistance reinforcing bar (1-1), shear reinforcement (1-2) and stirrup (1-3) is provided in tenon type component (1), tenon type splices at tooth
The thickness of concrete cover of bending resistance reinforcing bar (1-1) is not less than 30mm, and stirrup (1- is equidistantly distributed on bending resistance reinforcing bar (1-1)
3)；Shear reinforcement (1-2) identical with prestress hole road inclination is disposed at tenon type splicing tooth；Tenon type splices the corresponding groove of tooth
Inside is furnished with bending resistance reinforcing bar (1-1), and the protective layer thickness of concrete is not less than 30mm at bending resistance reinforcing bar (1-1).
6. a kind of large span fabricated construction self-balancing tenon-prestressing combination connecting node according to claim 2, special
Sign is: assembled seam (2) width is 5mm~30mm.
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| CN201821711989.7U CN209443571U (en) | 2018-10-22 | 2018-10-22 | A kind of large span fabricated construction self-balancing tenon-prestressing combination connecting node |
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| CN201821711989.7U CN209443571U (en) | 2018-10-22 | 2018-10-22 | A kind of large span fabricated construction self-balancing tenon-prestressing combination connecting node |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235637A (en) * | 2018-10-22 | 2019-01-18 | 北京工业大学 | A kind of large span fabricated construction self-balancing tenon-prestressing combination connecting node |
| CN114457714A (en) * | 2022-02-22 | 2022-05-10 | 南通大学 | Prefabricated intelligent luminous pavement structure and installation method thereof |
| CN114590365A (en) * | 2022-02-28 | 2022-06-07 | 武汉理工大学 | UHPC pipe-rod grid structure floating airport module and floating airport |
| CN115095045A (en) * | 2022-07-29 | 2022-09-23 | 中铁第四勘察设计院集团有限公司 | Full-assembly type passenger platform wall |
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2018
- 2018-10-22 CN CN201821711989.7U patent/CN209443571U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235637A (en) * | 2018-10-22 | 2019-01-18 | 北京工业大学 | A kind of large span fabricated construction self-balancing tenon-prestressing combination connecting node |
| CN114457714A (en) * | 2022-02-22 | 2022-05-10 | 南通大学 | Prefabricated intelligent luminous pavement structure and installation method thereof |
| CN114590365A (en) * | 2022-02-28 | 2022-06-07 | 武汉理工大学 | UHPC pipe-rod grid structure floating airport module and floating airport |
| CN115095045A (en) * | 2022-07-29 | 2022-09-23 | 中铁第四勘察设计院集团有限公司 | Full-assembly type passenger platform wall |
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