CN108086130A - A kind of T-shaped steel tube confinement reinforced concrete bridge pier beam-column connection of assembled - Google Patents

A kind of T-shaped steel tube confinement reinforced concrete bridge pier beam-column connection of assembled Download PDF

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Publication number
CN108086130A
CN108086130A CN201611046749.5A CN201611046749A CN108086130A CN 108086130 A CN108086130 A CN 108086130A CN 201611046749 A CN201611046749 A CN 201611046749A CN 108086130 A CN108086130 A CN 108086130A
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CN
China
Prior art keywords
steel tube
tube confinement
column
steel
bent cap
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Pending
Application number
CN201611046749.5A
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Chinese (zh)
Inventor
刘界鹏
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Chongqing Zhongke Construction Technology Co Ltd
Original Assignee
Chongqing Zhongke Construction Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chongqing Zhongke Construction Technology Co Ltd filed Critical Chongqing Zhongke Construction Technology Co Ltd
Priority to CN201611046749.5A priority Critical patent/CN108086130A/en
Publication of CN108086130A publication Critical patent/CN108086130A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/02Piers; Abutments ; Protecting same against drifting ice

Abstract

The present invention provides a kind of T-shaped steel tube confinement reinforced concrete bridge pier beam-column connections of assembled.Steel tube confinement reinforced column and bent cap are prefabricated in the factory, and pre-buried shaped steel shear key and grout sleeve in bent cap, and pier top groove and anchor bar are reserved in steel tube confinement reinforced column, and last scene splicing passes through connection of being in the milk.Prefabricated T-shaped steel tube confinement reinforced column in the present invention, which has, makes full use of the strength of materials, and fire-resistance anti-seismic performance is good, it is good in economic efficiency the advantages that.The present invention using fabricated construction, have many advantages, such as speed of application is fast, construction quality is high, construction environment improvement, working condition improvement, energy resource saving, cost savings.The present invention reserves groove in column, and shaped steel shear key is reserved in bent cap, and connects the two by way of injecting grouting material and fixes;The more existing assembled column of which can effectively improve the reliability being connected with bent cap connection mode and construct more convenient.

Description

A kind of T-shaped steel tube confinement reinforced concrete bridge pier beam-column connection of assembled
Technical field
The invention belongs to a kind of bridge structure constructions, the more particularly to T-shaped steel tube confinement reinforced concrete bridge pier beam of assembled Column connected node..
Background technology
Steel tube confined concrete fill concrete in thin-wall steel tube, steel pipe do not directly take on external loads, and main right Core concrete plays a kind of combined member of effect of contraction;As a kind of new structure, steel tube confined concrete structure tool There is high capacity, antidetonation and fire resistance are superior, can make full use of the advantages such as the intensity of high-strength steel and concrete.When steel pipe about When beam reinforced column outside steel pipe is circular, steel pipe constrains uniformly core concrete, and steel pipe tension can be made full use of strong Degree, economic benefit are good;The time can be saved to a greater extent using assembled in the structure, obtained in building structure Using.The T-shaped steel tube confinement reinforced concrete bridge pier beam-column connection of assembled is proposed according to industrialized building feature.
The content of the invention
For the popularization T-shaped steel tube confinement reinforced column of assembled in bridge structure, its mechanical property advantage is played, Quantity of material is reduced to improve economic performance, the present invention provides a kind of T-shaped steel tube confinement reinforced concrete bridge pier beam columns of assembled Connecting node.
To realize the present invention purpose and the technical solution adopted is that such, a kind of T-shaped steel tube confinement reinforcing bar of assembled mixes Solidifying soil bridge pier beam-column connection, it is characterised in that:Including bent cap, steel tube confinement reinforced column, grout sleeve and basis.
The bent cap is prefabrication.Pre-buried shaped steel shear key and several pier top anchor bars in the bent cap.Grouting Before sleeve is formed, annular groove is reserved in the lower surface of bent cap, and the upper end of the pier top anchor bar is located in bent cap, lower end is located at ring In shape slot.The upper end of the shaped steel shear key is located in bent cap, the lower surface of lower end exposing bent cap.The steel shear key is located at institute It states among annular groove.
The steel tube confinement reinforced column is prefabrication, outside mixed by the constraint of steel pipe package, inside for reinforcing bar Solidifying soil.The lower end of the steel tube confinement reinforced column is connected with basis.
The pre-buried several anchor bars of steel tube confinement reinforced column.Expose steel pipe in the upper end of these anchor bars Constrain the upper surface of reinforced column.Reserve pier top groove in the upper surface of the steel tube confinement reinforced column.The pier Top groove is located at the center in the region that anchor bar surrounds.
After the bent cap to be lifted into the top of steel tube confinement reinforced column, annular groove is stretched into the upper end of anchor bar In.The lower end of steel shear key is stretched into grout sleeve.
By the pipeline reserved on bent cap and/or steel tube confinement reinforced column, grouting material is poured into bent cap and steel pipe Constrain the gap between reinforced column.Pier top anchor bar and anchor bar in annular groove are effectively anchored, and are formed and filled Starch sleeve.
Further, reinforcing bar and pier top anchor bar use HRB335, HRB400 or RRB400 reinforcing bar in beam.
Further, shaped steel shear key is made of Q235 steel, Q345 steel, Q390 steel or Q420 steel.
Further, the round hole for pier top groove and grout sleeve grouting is left in steel tube confinement armored concrete column top Hole.
Further, shaped steel shear key is made of Q235 steel, Q345 steel, Q390 steel or Q420 steel.
The solution have the advantages that unquestionable:
1. round steel pipe constrains reinforced column, the strength of materials can be made full use of, fire-resistance anti-seismic performance is good, economic benefit OK etc..
2. fabricated construction, with speed of application is fast, construction quality is high, construction environment improves, working condition improves, resource The advantages that energy conservation, cost savings.
3. reserving groove in column, shaped steel shear key is reserved in bent cap, and by the two by way of injecting grouting material Connection is fixed;The more existing assembled column of which can effectively improve the reliability being connected with bent cap connection mode and construct more square Just.
Description of the drawings
The T-shaped steel tube confinement reinforced concrete bridge pier front view of Fig. 1 assembleds.
The T-shaped steel tube confinement reinforced concrete bridge pier top view of Fig. 2 assembleds.
The T-shaped steel tube confinement reinforced concrete bridge pier 1-1 sectional views of Fig. 3 assembleds.
The T-shaped steel tube confinement reinforced concrete bridge pier 2-2 sectional views of Fig. 4 assembleds.
The T-shaped steel tube confinement reinforced concrete bridge pier 3-3 sectional views of Fig. 5 assembleds.
In figure:Bent cap 1, steel tube confinement reinforced column 2, shaped steel shear key 3, grout sleeve 4, grouting material 5, pier top are recessed Slot 6, concrete seven, reinforcing bar 8, pier top anchor bar 9, anchor bar 10 in beam.
Specific embodiment
With reference to embodiment, the invention will be further described, but should not be construed the above-mentioned subject area of the present invention only It is limited to following embodiments.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and used With means, various replacements and change are made, should all be included within the scope of the present invention.
Referring to Fig. 1 and 2, a kind of T-shaped steel tube confinement reinforced concrete bridge pier beam-column connection of assembled, including bent cap 1, Steel tube confinement reinforced column 2, grout sleeve 4 and basis.
Referring to Fig. 3 and 4, the bent cap 1 is prefabrication.Pre-buried shaped steel shear key 3 and several pier tops in the bent cap 1 Anchor bar 9.Before grout sleeve 4 is formed, annular groove is reserved in the lower surface of bent cap 1, and the upper end of the pier top anchor bar 9 is located at Bent cap 1 is interior, lower end is located in annular groove.The upper end of the shaped steel shear key 3 is located in bent cap 1, the following table of lower end exposing bent cap 1 Face.The steel shear key 3 is located among the annular groove.
Referring to Fig. 5, the steel tube confinement reinforced column 2 is prefabrication, outside by steel pipe package constraint, internal For armored concrete.The lower end of the steel tube confinement reinforced column 2 is connected with basis.
The pre-buried several anchor bars 10 of steel tube confinement reinforced column 2.The upper end dew of these anchor bars 10 Go out the upper surface of steel tube confinement reinforced column 2.Reserve pier top groove in the upper surface of the steel tube confinement reinforced column 2 6.The pier top groove 6 is located at the center in the region that anchor bar 10 surrounds.
After the bent cap 1 is lifted into the top of steel tube confinement reinforced column 2, ring is stretched into the upper end of anchor bar 10 In shape slot.The lower end of steel shear key 3 is stretched into grout sleeve 4.
By the pipeline reserved on bent cap 1 and/or steel tube confinement reinforced column 2, grouting material 5 is poured into 1 He of bent cap Gap between steel tube confinement reinforced column 2.Pier top anchor bar 9 and anchor bar 10 in annular groove is by effective anchor Gu form grout sleeve 4.

Claims (5)

1. a kind of T-shaped steel tube confinement reinforced concrete bridge pier beam-column connection of assembled, it is characterised in that:Including bent cap (1), Steel tube confinement reinforced column (2), grout sleeve (4) and basis;
The bent cap (1) is prefabrication;Pre-buried shaped steel shear key (3) and several pier top anchor bars in the bent cap (1) (9);Before grout sleeve (4) is formed, annular groove is reserved in the lower surface of bent cap (1), and the upper end of the pier top anchor bar (9) is located at Bent cap (1) is interior, lower end is located in annular groove;The upper end of the shaped steel shear key (3) is located in bent cap (1), bent cap is exposed in lower end (1) lower surface;The steel shear key (3) is located among the annular groove;
The steel tube confinement reinforced column (2) is prefabrication, outside by the constraint of steel pipe package, it is internal be reinforced concrete Soil;The lower end of the steel tube confinement reinforced column (2) is connected with basis;
The pre-buried several anchor bars (10) of steel tube confinement reinforced column (2);The upper end of these anchor bars (10) Expose the upper surface of steel tube confinement reinforced column (2);Reserve pier in the upper surface of the steel tube confinement reinforced column (2) Push up groove (6);The pier top groove (6) is located at the center in the region that anchor bar (10) surrounds;
After the bent cap (1) is lifted into the top of steel tube confinement reinforced column (2), the upper end of anchor bar (10) is stretched into In annular groove;The lower end of steel shear key (3) is stretched into grout sleeve (4);
By the pipeline reserved on bent cap (1) and/or steel tube confinement reinforced column (2), grouting material (5) is poured into bent cap (1) gap between steel tube confinement reinforced column (2);Pier top anchor bar (9) and anchor bar in annular groove (10) effectively anchored, form grout sleeve (4).
2. the T-shaped steel tube confinement reinforced concrete bridge pier beam-column connection of a kind of assembled according to claim 1, special Sign is:Reinforcing bar (8) and pier top anchor bar (9) use HRB335, HRB400 or RRB400 reinforcing bar in beam.
3. the T-shaped steel tube confinement reinforced concrete bridge pier beam-column connection of a kind of assembled according to claim 1, special Sign is:Shaped steel shear key (3) is made of Q235 steel, Q345 steel, Q390 steel or Q420 steel.
4. the T-shaped steel tube confinement reinforced concrete bridge pier beam-column connection of a kind of assembled according to claim 1, special Sign is:The circle for pier top groove (6) and grout sleeve (4) grouting is left at the top of steel tube confinement reinforced column (2) Hole.
5. the T-shaped steel tube confinement reinforced concrete bridge pier beam-column connection of a kind of assembled according to claim 1, special Sign is:Shaped steel shear key (3) is made of Q235 steel, Q345 steel, Q390 steel or Q420 steel.
CN201611046749.5A 2016-11-23 2016-11-23 A kind of T-shaped steel tube confinement reinforced concrete bridge pier beam-column connection of assembled Pending CN108086130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611046749.5A CN108086130A (en) 2016-11-23 2016-11-23 A kind of T-shaped steel tube confinement reinforced concrete bridge pier beam-column connection of assembled

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611046749.5A CN108086130A (en) 2016-11-23 2016-11-23 A kind of T-shaped steel tube confinement reinforced concrete bridge pier beam-column connection of assembled

Publications (1)

Publication Number Publication Date
CN108086130A true CN108086130A (en) 2018-05-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110485264A (en) * 2019-08-21 2019-11-22 保利长大工程有限公司 A kind of center pier great cantilever bent cap and its construction method
CN112176886A (en) * 2020-11-16 2021-01-05 山东高速建设管理集团有限公司 Double-steel sleeve socket connection structure of prefabricated bridge pier and construction method thereof
CN112942078A (en) * 2021-02-03 2021-06-11 中国地震局工程力学研究所 L-shaped joint assembly type splicing pier

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110485264A (en) * 2019-08-21 2019-11-22 保利长大工程有限公司 A kind of center pier great cantilever bent cap and its construction method
CN110485264B (en) * 2019-08-21 2020-06-02 保利长大工程有限公司 Construction method of central pier large cantilever cover beam
US10914043B1 (en) 2019-08-21 2021-02-09 Poly Changda Engineering Co., Ltd. Construction method for a cantilever beam on a central pier
CN112176886A (en) * 2020-11-16 2021-01-05 山东高速建设管理集团有限公司 Double-steel sleeve socket connection structure of prefabricated bridge pier and construction method thereof
CN112942078A (en) * 2021-02-03 2021-06-11 中国地震局工程力学研究所 L-shaped joint assembly type splicing pier

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