CN100443671C - Reinforced concrete bearing platform arranged with diagonal reinforcing steel and method for manufacturing same - Google Patents
Reinforced concrete bearing platform arranged with diagonal reinforcing steel and method for manufacturing same Download PDFInfo
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- CN100443671C CN100443671C CNB200610114258XA CN200610114258A CN100443671C CN 100443671 C CN100443671 C CN 100443671C CN B200610114258X A CNB200610114258X A CN B200610114258XA CN 200610114258 A CN200610114258 A CN 200610114258A CN 100443671 C CN100443671 C CN 100443671C
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Abstract
The invention is steel bar concrete cushion cap which is equipped with obliquely steel bar and its method for making and belongs to cushion cap construction. The blanking crack arises and develops along the direction of 45degree with the horizontal direction, but the prior resistant-plucking steel bars are installed vertically and oblique with the blanking crack, so the method does not give full play of the role of resistant-plucking steel bars. The features of the invention are: cross-installing steel bars which inner and outer are inclined around the steel legs (8) in cushion cap, the internal inclined steel bars (1) and the external inclined steel bars (2) are both orthogonal with the blanking broken surface(9) of the side approximately and the angle between them and the horizontal surface is 40degree-50degree; the ends of internal inclined steel bars (1) and the external inclined steel bars(2) are equipped with crotchs, the crotch butts on the horizontal or vertical reinforcement of the top and the bottom horizontal bar-mat reinforcement and is banded and fixed with the steel bar in p distribution which is vertical with the inclined steel bars. The invention restricts the blanking crack more effectively and limits new blanking cracks rising, enhances the anchorage capacity of cushion cap to steel legs and the ductili of cushion cap significantly.
Description
Technical field
The present invention is a kind of steel concrete cushion cap that disposes oblique reinforcing bar, and this kind cushion cap can better strengthen anti-impact and cut ability, strengthens the anchoring ability to the steel column pin, strengthens cushion cap ductility, belongs to a kind of suspended deck structure.
Background technology
Cushion cap is the coupling part of superstructure and pile foundation, because its power transmission mechanism is special, and the structural performance more complicated.In the large-scale steel structure public building, the stressed and physical dimension of steel work suspension column is all very big, and can its anchoring property determining steel work have the principal element of stable bearing capacity, affects structure internal force distribution situation and deformation performance simultaneously.How to make the resistance to plucking reinforcing bar that disposes in the steel concrete cushion cap give full play to its effect,, become the problem that Chinese scholars and engineering circle are extremely paid close attention to improve the anchoring property of suspended deck structure to the steel column pin.
The method that existing steel concrete cushion cap strengthens steel column pin anchoring property is the vertical resistance to plucking reinforcing bar of configuration in the die-cut zone of cushion cap.The problem of its existence is: die-cut crack roughly is that 45 ° of directions occur and development along being with horizontal direction, and the resistance to plucking reinforcing bar of configuration is vertical the layout, with die-cut crack oblique, does not give full play to the resistance to plucking action of steel bars.
Summary of the invention
Technical problem to be solved by this invention is: significantly improve the mixed native cushion cap that coagulates of reinforcing bar the anchoring ability and the anti-impact of steel column pin are cut ability, can improve about 20%, significantly improve cushion cap ductility, can improve about 15%.
The invention provides a kind of steel concrete cushion cap that disposes oblique reinforcing bar, comprise the bottom surface horizontal mesh reinforcement of end face horizontal mesh reinforcement, bottom surface transverse reinforcement 5 and bottom surface longitudinal reinforcement 6 compositions that end face transverse reinforcement 3 and end face longitudinal reinforcement 4 are formed, described end face and bottom surface horizontal mesh reinforcement socket support in punching failure face 9 peripheries with socketing reinforcing bar 7; Steel column pin 8 relies on anchor beam 11 to carry out anchoring in cushion cap;
It is characterized in that: configuration introversion diagonal reinforcement 1 and outer incline reinforcing bar 2 in this concrete bearing platform, this introversion diagonal reinforcement 1 and outer incline reinforcing bar 2 are being arranged all around around steel column pin 8; The introversion diagonal reinforcement 1 of every side tilts to steel column pin 8, and outer incline reinforcing bar 2 is outward-dipping away from steel column pin 8;
Introversion diagonal reinforcement 1 and outer incline reinforcing bar 2 are X-shape and arrange; Introversion diagonal reinforcement 1 and outer incline reinforcing bar 2 all with the punching failure face 9 of this side quadrature roughly, and the angle of horizontal plane is between 40 °～50 °; The end of introversion diagonal reinforcement 1 and outer incline reinforcing bar 2 is provided with crotch, and crotch rides on the horizontal or longitudinal reinforcement of end face and bottom surface horizontal mesh reinforcement, and uses with vertically arranged distribution reinforcement 10 colligations of the reinforcing bar that tilts and fix.
The introversion diagonal reinforcement 1 of described every side and outer incline reinforcing bar 2 divide multilayer to arrange according to the anchorage depth of cushion cap thickness and steel column pin from top to bottom, are generally 3～6 layers.
The oblique reinforcement placement direction of the present invention configuration roughly with punching failure face 9 quadratures, principal tensile stress during roughly with the concrete punching failure is parallel, in cushion cap stress destruction process, can improve the distribution of internal force in the cushion cap, development that can the die-cut diagonal crack of more effective restriction, limit the generation in new crack, significantly improve cushion cap the anchoring property and the anti-impact of steel column pin are cut ability, improve the bearing capacity of structure, and keep the resistance to overturning of structure.When the suffered withdrawal force of steel column pin acts on repeatedly and strengthens gradually, along with carrying out of oblique crack, oblique reinforcing bar also engenders surrender and plastic strain, but cushion cap still has metastable hysteresis performance, can consume the energy of input, improve the ductility of structure.
Steel concrete cushion cap anchoring property and the anti-impact ability of cutting that the present invention disposes oblique reinforcing bar are significantly higher than common steel concrete cushion cap.Behind the oblique reinforcing bar of configuration on the ordinary reinforced concrete cushion cap basis, under the condition that does not change its appearance and size, improve its bearing capacity significantly, improved the anchoring ability and the anti-impact of steel column pin are cut ability, improved the ductility of cushion cap.
Preparation method according to the steel concrete cushion cap of the oblique reinforcing bar of configuration of the present invention may further comprise the steps:
1) horizontal mesh reinforcement formed by bottom surface transverse reinforcement 5 and bottom surface longitudinal reinforcement 6 of colligation cushion cap bottom surface;
2) with 8 liftings of steel column pin and accurate location, adjust anchor beam 11 degree of depth;
3) horizontal mesh reinforcement formed by end face transverse reinforcement 3 and end face longitudinal reinforcement 4 of colligation cushion cap end face;
4) colligation punching failure face 9 peripheries vertically socket reinforcing bar 7, support and socket the end face steel mesh reinforcement;
5) supporting template leaves thickness of concrete cover between template and the reinforcing bar;
6) casting and compacting of concrete, maintenance, last form removal;
It is characterized in that, in step 4) and 5) between further comprising the steps of:
Earlier with introversion diagonal reinforcement 1 and outer incline reinforcing bar 2 location: all with the punching failure face 9 of this side quadrature roughly, and the angle of horizontal plane is between 40 °～50 °; Introversion diagonal reinforcement 1 and outer incline reinforcing bar 2 are X-shape and arrange; The end of introversion diagonal reinforcement 1 and outer incline reinforcing bar 2 is provided with crotch, and crotch rides on the horizontal or longitudinal reinforcement of end face and bottom surface horizontal mesh reinforcement, fixes with distribution reinforcement 10 colligations then.
Description of drawings
Fig. 1 is an element of construction plane arrangement of reinforcement schematic diagram of the ordinary reinforced concrete cushion cap of configuration vertically pulling-resistant reinforcing bar;
Fig. 2 is an A-A section enlarged diagram among Fig. 1;
Fig. 3 is a B-B section enlarged diagram among Fig. 1;
Fig. 4 is an element of construction plane arrangement of reinforcement schematic diagram of the present invention's steel concrete cushion cap of disposing oblique reinforcing bar;
Fig. 5 is an A-A section enlarged diagram among Fig. 4;
Fig. 6 is a B-B section enlarged diagram among Fig. 4;
Fig. 7 is another element of construction plane arrangement of reinforcement schematic diagram of the present invention's steel concrete cushion cap of disposing oblique reinforcing bar;
Fig. 8 is an A-A section enlarged diagram among Fig. 7;
Fig. 9 is a B-B section enlarged diagram among Fig. 7;
1-introversion diagonal reinforcement, 2-outer incline reinforcing bar, 3-end face transverse reinforcement, 4-end face longitudinal reinforcement, 5-bottom surface transverse reinforcement, 6-bottom surface longitudinal reinforcement, 7-sockets reinforcing bar, 8-steel column pin, 9-punching failure face, 10-distribution reinforcement, 11-anchor beam.
The specific embodiment
Dispose structural reinforcement schematic diagram such as Fig. 4, Fig. 5 and shown in Figure 6 of an element of construction of steel concrete cushion cap of oblique reinforcing bar.The arrangement of reinforcement of steel concrete cushion cap is that end face is being arranged the steel mesh reinforcement of being made up of end face transverse reinforcement 3 and end face longitudinal reinforcement 4; Sole arrangement the steel mesh reinforcement of being made up of bottom surface transverse reinforcement 5 and bottom surface longitudinal reinforcement 6, the even elongated layout of reinforcing bar, bar diameter 12mm, distribute spacing 150mm; In punching failure face 9 peripheries, end face reinforcing bar and bottom surface reinforcing bar socket support with vertically socketing reinforcing bar 7; Direction and horizontal plane angle at 45 that introversion diagonal reinforcement 1 is arranged tilt to steel column pin 8, divide 6 layers of layout, and bar diameter 12mm, distribute spacing are 100mm; Outer incline reinforcing bar 2 arranged direction and horizontal plane angle also at 45, outward-dipping away from steel column pin 8, divide 3 layers of layout, bar diameter 12mm, distribute spacing are 100mm; Be used for fixing the distribution reinforcement 10 diameter 10mm of oblique reinforcing bar, distribute spacing is 200mm; Each termination at oblique reinforcing bar is provided with crotch, rides on end face reinforcing bar and the bottom surface reinforcing bar respectively and colligation, makes it that enough anchoring strengths be arranged; The disturbing concrete one-shot forming is the steel concrete cushion cap of the oblique reinforcing bar of configuration.This cushion cap can improve about 20% the anchoring ability and the anti-impact ability of cutting of steel column pin, and ductility can improve about 15%.
Dispose structural reinforcement schematic diagram such as Fig. 7, Fig. 8, shown in Figure 9 of an element of construction of steel concrete cushion cap of oblique resistance to plucking reinforcing bar.Cushion cap end face and bottom surface dispose the steel mesh reinforcement of being made up of longitudinal reinforcement and transverse reinforcement respectively, and bar diameter is 12mm, and distribute spacing is 200mm; End face steel mesh reinforcement and bottom surface steel mesh reinforcement socket support in punching failure face 9 peripheries with vertically socketing reinforcing bar 7; Direction and horizontal plane angle at 45 that introversion diagonal reinforcement 1 is arranged tilt to steel column pin 8, divide 3 layers of layout, and bar diameter 12mm, distribute spacing are 200mm; Outer incline reinforcing bar 2 arranged direction and horizontal plane angle also at 45, outward-dipping away from steel column pin 8, divide 2 layers of layout, bar diameter 12mm, distribute spacing are 200mm; Be used for fixing the distribution reinforcement 10 diameter 10mm of oblique reinforcing bar, distribute spacing is 200mm; Each termination at oblique reinforcing bar is provided with crotch, rides on end face reinforcing bar and the bottom surface reinforcing bar respectively and colligation, makes it that enough anchoring strengths be arranged; The disturbing concrete one-shot forming is the steel concrete cushion cap of the oblique reinforcing bar of configuration.This cushion cap can improve about 20% the anchoring ability and the anti-impact ability of cutting of steel column pin, and ductility can improve about 15%.
Claims (3)
1, a kind of steel concrete cushion cap that disposes oblique reinforcing bar, comprise the bottom surface horizontal mesh reinforcement of end face horizontal mesh reinforcement, bottom surface transverse reinforcement (5) and bottom surface longitudinal reinforcement (6) composition that end face transverse reinforcement (3) and end face longitudinal reinforcement (4) are formed, described end face and bottom surface horizontal mesh reinforcement socket support in punching failure face (9) periphery with socketing reinforcing bar (7); Steel column pin (8) relies on anchor beam (11) to carry out anchoring in cushion cap;
It is characterized in that: configuration introversion diagonal reinforcement (1) and outer incline reinforcing bar (2) in this concrete bearing platform, this introversion diagonal reinforcement (1) and outer incline reinforcing bar (2) are being arranged all around around steel column pin (8); The introversion diagonal reinforcement (1) of every side tilts to steel column pin (8), and outer incline reinforcing bar (2) is outward-dipping away from steel column pin (8);
Introversion diagonal reinforcement (1) and outer incline reinforcing bar (2) are X-shape and arrange; Introversion diagonal reinforcement (1) and outer incline reinforcing bar (2) all with the punching failure face (9) of this side quadrature roughly, and the angle of horizontal plane is between 40 °～50 °; The end of introversion diagonal reinforcement (1) and outer incline reinforcing bar (2) is provided with crotch, and crotch rides on the horizontal or longitudinal reinforcement of end face and bottom surface horizontal mesh reinforcement, and uses with the vertically arranged distribution reinforcement of the reinforcing bar that tilts (10) colligation and fix.
2, the steel concrete cushion cap of the oblique reinforcing bar of configuration according to claim 1 is characterized in that, the introversion diagonal reinforcement (1) and the outer incline reinforcing bar (2) of described every side divide 3～6 layers of layout from top to bottom.
3, the preparation method of the steel concrete cushion cap of the oblique reinforcing bar of configuration according to claim 1 may further comprise the steps:
1) horizontal mesh reinforcement formed by bottom surface transverse reinforcement (5) and bottom surface longitudinal reinforcement (6) of colligation cushion cap bottom surface;
2) with steel column pin (8) lifting and accurate location, adjust anchor beam (11) degree of depth;
3) horizontal mesh reinforcement formed by end face transverse reinforcement (3) and end face longitudinal reinforcement (4) of colligation cushion cap end face;
4) colligation punching failure face (9) is peripheral vertically sockets reinforcing bar (7), supports and socket the end face steel mesh reinforcement;
5) supporting template leaves thickness of concrete cover between template and the reinforcing bar;
6) casting and compacting of concrete, maintenance, last form removal;
It is characterized in that, in step 4) and 5) between further comprising the steps of:
Earlier introversion diagonal reinforcement (1) and outer incline reinforcing bar (2) are located: all with the punching failure face (9) of this side quadrature roughly, and the angle of horizontal plane is between 40 °～50 °; Introversion diagonal reinforcement (1) and outer incline reinforcing bar (2) are X-shape and arrange; The end of introversion diagonal reinforcement (1) and outer incline reinforcing bar (2) is provided with crotch, and crotch rides on the horizontal or longitudinal reinforcement of end face and bottom surface horizontal mesh reinforcement, uses distribution reinforcement (10) colligation to fix then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610114258XA CN100443671C (en) | 2006-11-03 | 2006-11-03 | Reinforced concrete bearing platform arranged with diagonal reinforcing steel and method for manufacturing same |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB200610114258XA CN100443671C (en) | 2006-11-03 | 2006-11-03 | Reinforced concrete bearing platform arranged with diagonal reinforcing steel and method for manufacturing same |
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| Publication Number | Publication Date |
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| CN1963045A CN1963045A (en) | 2007-05-16 |
| CN100443671C true CN100443671C (en) | 2008-12-17 |
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| CNB200610114258XA Expired - Fee Related CN100443671C (en) | 2006-11-03 | 2006-11-03 | Reinforced concrete bearing platform arranged with diagonal reinforcing steel and method for manufacturing same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102936958B (en) * | 2012-11-26 | 2014-09-03 | 成都市第六建筑工程公司 | Construction method for positioning upper reinforcements of concrete floor slab by using tool type supports |
| CN103276899B (en) * | 2013-06-05 | 2015-12-02 | 中国建筑第八工程局有限公司 | Reinforced steel bar ring is around steel kind design construction method |
| CN103469958B (en) * | 2013-09-23 | 2016-08-17 | 初明进 | Precast concrete |
| CN106836324A (en) * | 2017-03-07 | 2017-06-13 | 长安大学 | A kind of blower foundation reinforcement means for setting up oblique tension reinforcement |
| CN108868153A (en) * | 2017-05-12 | 2018-11-23 | 五冶集团上海有限公司 | Basement Epoxy Resin Coated Steel Bars binding method under corrosive environment |
| CN110080395A (en) * | 2019-04-30 | 2019-08-02 | 西安建筑科技大学 | A kind of oblique anchor bolt of Punching Shear |
| CN112854779B (en) * | 2021-01-05 | 2022-07-12 | 中国建筑第八工程局有限公司 | Construction method for column base of inclined steel structure column |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07279183A (en) * | 1994-04-05 | 1995-10-24 | Taisei Corp | Bar arrangement structure of pile head part in cast-in-place concrete pile |
| JPH09328741A (en) * | 1996-06-09 | 1997-12-22 | Hirose & Co Ltd | Reinforcing construction method of rock-bed supporting force |
| JP2003336315A (en) * | 2002-05-23 | 2003-11-28 | Maeda Corp | Reinforced concrete beam structure |
| EP1630315A1 (en) * | 2004-08-21 | 2006-03-01 | Schöck Bauteile GmbH | Construction element for shear and punching reinforcement |
| CN1793587A (en) * | 2005-12-28 | 2006-06-28 | 北京工业大学 | Square section concrete short pillar hiden with 'slant strength nucleocenter beam' and mfg. method thereof |
| CN200988967Y (en) * | 2006-11-03 | 2007-12-12 | 北京工业大学 | Steel bar concrete bearing platform of built-in oblique steel bar |
-
2006
- 2006-11-03 CN CNB200610114258XA patent/CN100443671C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07279183A (en) * | 1994-04-05 | 1995-10-24 | Taisei Corp | Bar arrangement structure of pile head part in cast-in-place concrete pile |
| JPH09328741A (en) * | 1996-06-09 | 1997-12-22 | Hirose & Co Ltd | Reinforcing construction method of rock-bed supporting force |
| JP2003336315A (en) * | 2002-05-23 | 2003-11-28 | Maeda Corp | Reinforced concrete beam structure |
| EP1630315A1 (en) * | 2004-08-21 | 2006-03-01 | Schöck Bauteile GmbH | Construction element for shear and punching reinforcement |
| CN1793587A (en) * | 2005-12-28 | 2006-06-28 | 北京工业大学 | Square section concrete short pillar hiden with 'slant strength nucleocenter beam' and mfg. method thereof |
| CN200988967Y (en) * | 2006-11-03 | 2007-12-12 | 北京工业大学 | Steel bar concrete bearing platform of built-in oblique steel bar |
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| CN1963045A (en) | 2007-05-16 |
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Owner name: CCCC FIRST HIGHWAY ENGINEERING BUREAU LTD. Free format text: FORMER OWNER: BEIJING POLYTECHNIC UNIV. Effective date: 20090403 |
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Effective date of registration: 20090403 Address after: Chaoyang District, Guanzhuang, Beijing Patentee after: CCCC FIRST HIGHWAY ENGINEERING Co.,Ltd. Address before: No. 100 Ping Park, Beijing, Chaoyang District Patentee before: Beijing University of Technology |
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Granted publication date: 20081217 Termination date: 20211103 |