CN85202839U - Assembled prefabricated components made of reinforced concrete - Google Patents
Assembled prefabricated components made of reinforced concrete Download PDFInfo
- Publication number
- CN85202839U CN85202839U CN 85202839 CN85202839U CN85202839U CN 85202839 U CN85202839 U CN 85202839U CN 85202839 CN85202839 CN 85202839 CN 85202839 U CN85202839 U CN 85202839U CN 85202839 U CN85202839 U CN 85202839U
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- CN
- China
- Prior art keywords
- reinforced concrete
- hollow thin
- thin wall
- concrete member
- prefabricated reinforced
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Abstract
The utility model provides a prefabricated reinforced concrete member with hollow thin wall. The circumference of the prefabricated reinforced concrete member with hollow thin wall is provided with holes which are penetrated by steel reinforcements. The prefabricated reinforced concrete member with hollow thin wall can be connected into integration by steel under preload stress to form a bridge pier. The utility model is characterized in that the four corners of the prefabricated reinforced concrete member with hollow thin wall is provided with ribs, so the flexural strength of the bridge pier is improved, so the amount of field masonry reduced in maximum degree, and the construction progress is accelerated. When used in engineering construction, the prefabricated reinforced concrete member with hollow thin wall is favorable for realizing standardized design, industrialized member manufacture, and mechanized field assembly.
Description
The utility model is a kind of prefabricated units of building concrete pier, particularly is used for the precast member for reinforcing bar concrete that the assembly unit bridge pier uses.
The present bridge pier that uses, pier shaft mostly is solid concrete and constitutes, and quantity of masonry is big, when taking a lot of work, and investment is many, also will long-time maintenance after the completion, can not put into effect at once.Poor because of its tensile strength, transverse cracks often appears.For addressing this problem, adopt reinforced concrete structure usually, or precast reinforced concrete structure, with high-strength prestressed steel wire stretch-draw splicing.For example pin-connected panel prestressing force bridge pier has been introduced " TpaHchopTHoe CTPouTe ∧ bcTBO " (" Transportation Engineering ") the 5th phase in 1964 by the Soviet Union, its pier shaft is the concrete component that adopts dissimilar thin-walleds square-section, because of its rigidity of section less, establish a diaphragm every 3m, complete 14 high strength steel tow of pier stretch-draw (every bundle is made up of 38 institutes of 5mm steel wire) make bridge pier produce compressive stress, when the grappling steel tendon, annular anchor is established in the upper end, special parts such as the collar are established in the lower end, the assembly unit interblock is established the thick No. 300 mortars seam of 2cm, connect with bolt at seam crossing, treat that mortar reaches 80% intensity after, on every steel tendon, add 82 tons of pulling force in advance.Therefore this pin-connected panel prestressing force bridge pier construction equipment requires high, complex structure, and it is loaded down with trivial details to construct, and fails to promote in actual engineering, also not developed thereafter.
The purpose of this utility model is that a kind of easy pin-connected panel precast unit will be provided, when using this member to build concrete pier, and can be with simple and easy tensioning equipment tension reinforcing steel bar, reduce construction sequence, accelerate speed of application, and can guarantee workmanship, save investment and safe operation.
The utility model be achieved in that (1) in factory, manufacture four jiaos have fin, interior corners is splay rectangle hollow thin-wall reinforced concrete member, and on thin-walled the reserved steel bar duct; (2) with crane gear assembly unit concrete component, the thick 3mm of slurry cements between member; (3) the normal carbon reinforcing bar is inserted to give as prestressed reinforcement box out, the reinforced bar stretching tonnage is different with the force-bearing situation of the thickness of using reinforcing bar and bridge pier, generally below 30 tons, use the jack that satisfies tonnage demand during stretch-draw, add the stretch-draw frame, with nut as ground tackle, symmetrical tension reinforcing steel bar, utilize steel chord type force-measuring meter control reinforcement stresses and elongation, make to reach yield point of steel bar; Reserve inspection panel in empty stomach pier shaft bottom, treat that prestressed reinforcement stretch-draw anchor and grouting finish after, fill up local concrete by design elevation, Dun Ding makes weathering by design size.
The utility model has following advantage:
Use ordinary jack to add the stretch-draw frame when 1, constructing, normal carbon reinforcing bar and nut can apply prestressing force to bridge pier, and reliable in quality is easy to use, and operation is simple.
2, adopt the square-section have fin, increased the bending rigidity of bridge pier, compare its rigidity with the person that do not add the fin and increase 60% approximately, saved diaphragm, simplify the structure.
3, inspection panel is reserved in the pier shaft bottom, is convenient to the maintenance of maintenance personnel inspection.
4, applicability is strong, is particularly useful for sandstone material source poorness and water-deficient area, can reduce on-the-spot quantity of masonry to greatest extent, occupy little space in the construction, do not disturb mutually with surrounding environment, but accelerating construction progress, help realizing design standardization, make the member batch production, site assembly mechanization.
Below in conjunction with accompanying drawing the utility model is described in detail
Fig. 1 is bridge pier half positive, the half-sectional view of building with the utility model.
Wherein: 1 rectangle hollow thin wall concrete member
2 prestressing force normal carbon reinforcing bars
3 nuts as the ground tackle use
4 reserve inspection panel
5 member seams
6 bottom entity pier shafts
Fig. 2 is the sectional view of the utility model along I-I line
Wherein: 7 wear the hole of reinforcing bar
Fig. 3 is the sectional view of the utility model along II-II line
Fig. 4 is prestressing reinforced bar stretching figure
Wherein: 8 hydraulic jack
9 pistons
10 jack cylinders
11 oil nozzles, 12 stretch-draw arm-ties
13 weld seams
14 base plates
During construction rectangle hollow thin wall concrete member 1 is installed, with neat slurry filling member seam 5, in the prefabricated units bottom and the solid pier junction is poured into part heavy wall concrete in advance on the spot and reserved steel bar hole and inspection panel 4 on Dun Bi.Then prestressing force normal carbon reinforcing bar 2 is inserted the hole 7 of wearing reinforcing bar,, load onto the nut 3 that uses when ground tackle in the reinforcing bar bottom.Then hydraulic jack 8 is placed Dun Ding, jack oil enters jack cylinder 10 by oil nozzle 11, thereby promotes piston 9, drives stretch-draw arm-tie 12, and weld seam 13 and base plate 14 are stretched to prestressing force normal carbon reinforcing bar 2 tonnage that needs by double nut.
The utility model embodiment
A span is the high 18.6m bridge pier that 12m+12m low clearance reinforced concrete beam is used, another span is the high 15m bridge pier that 12m+16m low clearance reinforced concrete beam is used, siding is pushed down owing to constructed in this two bridge piers pier position, can't pour into solid pier at that time, for this reason precast hollow thin-walled 300 grade reinforcing steel concrete components in factory, the high 1.0m of every joint, arranging evenly that along the thin-walled periphery φ 28 reinforcing bars with 16 of φ 60 holes, around the square-section, all have fin, and be furnished with reinforcing bar, with 20
tCable crane places the assembly unit piece on the heavy wall bridge pier of perfusion in advance one by one, and floating all thick 3mm cement paste between seam is with two Crow husband's gold 120
tThe stretch-draw of jack symmetry, every reinforcing bar tension force aggregate tonnage is 18 tons
, reaching its yield point, each bridge pier has only been used three days and has just been finished assembly unit and stretch-draw task, and it is 4 that two bridge piers are Duoed with reinforcing bar than former entity pier shaft design altogether
t, save concrete 90.2m
3The set inspection panel height in hollow pier shaft bottom is 78cm, and wide 60cm uses through operation for many years, proves that bridge pier is functional.
Claims (1)
1, build the concrete prefabricated element that bridge pier is used, this member is a rectangle hollow thin-wall reinforced concrete structure, is provided with the circular hole that passes reinforcing bar around the member, and the cross section interior corners becomes splayed, it is characterized in that: four jiaos of described member are provided with fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85202839 CN85202839U (en) | 1985-07-12 | 1985-07-12 | Assembled prefabricated components made of reinforced concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85202839 CN85202839U (en) | 1985-07-12 | 1985-07-12 | Assembled prefabricated components made of reinforced concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85202839U true CN85202839U (en) | 1986-05-28 |
Family
ID=4798555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85202839 Ceased CN85202839U (en) | 1985-07-12 | 1985-07-12 | Assembled prefabricated components made of reinforced concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85202839U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429752B (en) * | 2007-11-05 | 2010-05-12 | 中交一航局第一工程有限公司 | Pier column prefabrication splicing building technology |
| CN101831875A (en) * | 2010-06-09 | 2010-09-15 | 中交第一公路勘察设计研究院有限公司 | Precast assembly process of prestressed concrete cylindrical hollow pier |
| CN101597885B (en) * | 2009-07-09 | 2011-02-09 | 中铁二院工程集团有限责任公司 | Ultrahigh hollow pier for long coupling and large span continuous structure bridge |
| CN101613995B (en) * | 2008-06-24 | 2011-07-06 | 株式会社大宇建设 | Psc bridge pier assembled with precast concrete segments having steel duct and steel pipe, and constructing method thereof |
| CN102373752A (en) * | 2010-08-11 | 2012-03-14 | 中国市政工程东北设计研究总院 | New crossing and butting combined assembly method for concrete prefabricated members |
| CN102373806A (en) * | 2010-08-11 | 2012-03-14 | 中国市政工程东北设计研究总院 | Novel angle joint combined assembly method of concrete prefabricated part |
| CN102373753A (en) * | 2010-08-11 | 2012-03-14 | 中国市政工程东北设计研究总院 | New method for butt-joint assembly of concrete prefabricated parts |
| CN101634134B (en) * | 2008-07-21 | 2012-08-08 | 株式会社大宇建设 | Psc bridge pier assembled with precast concrete segments having steel duct and steel pipe and reinforcing bar, and constructing method thereof |
| CN103572706A (en) * | 2013-11-21 | 2014-02-12 | 西南科技大学 | Assembled type reinforced concrete bridge construction technology |
| CN103572705A (en) * | 2013-11-21 | 2014-02-12 | 西南科技大学 | Construction method of prefabricated reinforced concrete block prefabricated bridge pier |
| CN110424632A (en) * | 2019-08-13 | 2019-11-08 | 北京矿冶科技集团有限公司 | Prefabricated foamed aluminum-core concrete-filled circular steel tube column and its assembling structure |
-
1985
- 1985-07-12 CN CN 85202839 patent/CN85202839U/en not_active Ceased
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429752B (en) * | 2007-11-05 | 2010-05-12 | 中交一航局第一工程有限公司 | Pier column prefabrication splicing building technology |
| CN101613995B (en) * | 2008-06-24 | 2011-07-06 | 株式会社大宇建设 | Psc bridge pier assembled with precast concrete segments having steel duct and steel pipe, and constructing method thereof |
| CN101634134B (en) * | 2008-07-21 | 2012-08-08 | 株式会社大宇建设 | Psc bridge pier assembled with precast concrete segments having steel duct and steel pipe and reinforcing bar, and constructing method thereof |
| CN101597885B (en) * | 2009-07-09 | 2011-02-09 | 中铁二院工程集团有限责任公司 | Ultrahigh hollow pier for long coupling and large span continuous structure bridge |
| CN101831875A (en) * | 2010-06-09 | 2010-09-15 | 中交第一公路勘察设计研究院有限公司 | Precast assembly process of prestressed concrete cylindrical hollow pier |
| CN102373753B (en) * | 2010-08-11 | 2013-07-03 | 中国市政工程东北设计研究总院 | New method for butt-joint assembly of concrete prefabricated parts |
| CN102373753A (en) * | 2010-08-11 | 2012-03-14 | 中国市政工程东北设计研究总院 | New method for butt-joint assembly of concrete prefabricated parts |
| CN102373806A (en) * | 2010-08-11 | 2012-03-14 | 中国市政工程东北设计研究总院 | Novel angle joint combined assembly method of concrete prefabricated part |
| CN102373752A (en) * | 2010-08-11 | 2012-03-14 | 中国市政工程东北设计研究总院 | New crossing and butting combined assembly method for concrete prefabricated members |
| CN102373806B (en) * | 2010-08-11 | 2015-03-04 | 中国市政工程东北设计研究总院 | Novel angle joint combined assembly method of concrete prefabricated part |
| CN103572706A (en) * | 2013-11-21 | 2014-02-12 | 西南科技大学 | Assembled type reinforced concrete bridge construction technology |
| CN103572705A (en) * | 2013-11-21 | 2014-02-12 | 西南科技大学 | Construction method of prefabricated reinforced concrete block prefabricated bridge pier |
| CN103572706B (en) * | 2013-11-21 | 2015-11-25 | 西南科技大学 | Assembled steel reinforced concrete bridge construction technique |
| CN103572705B (en) * | 2013-11-21 | 2015-11-25 | 西南科技大学 | The construction method of prefabricated reinforced concrete block packaged type bridges pier |
| CN110424632A (en) * | 2019-08-13 | 2019-11-08 | 北京矿冶科技集团有限公司 | Prefabricated foamed aluminum-core concrete-filled circular steel tube column and its assembling structure |
| CN110424632B (en) * | 2019-08-13 | 2024-04-09 | 北京矿冶科技集团有限公司 | Prefabricated foam aluminum core round steel pipe concrete column of assembled and assembly structure thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right | ||
| CE01 | Termination of patent right |
Termination date: 19861210 |