CN103422677A - Construction method for binding steel reinforced concrete composite structure reinforcing steel bars - Google Patents
Construction method for binding steel reinforced concrete composite structure reinforcing steel bars Download PDFInfo
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- CN103422677A CN103422677A CN2013103848821A CN201310384882A CN103422677A CN 103422677 A CN103422677 A CN 103422677A CN 2013103848821 A CN2013103848821 A CN 2013103848821A CN 201310384882 A CN201310384882 A CN 201310384882A CN 103422677 A CN103422677 A CN 103422677A
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Abstract
The invention discloses a construction method for binding steel reinforced concrete composite structure reinforcing steel bars. The construction method is characterized by comprising the steps of pillar joint bar construction, main bar position rechecking, welding and positioning of the reinforcing steel bars, connection of pillar positioning main bars, hoop manufacturing, hoop binding, connection of pillar main bars, positioning of the reinforcing steel bars, and the like. The construction method is convenient to construct and good in construction quality.
Description
Technical field
The present invention relates to a kind of reinforced concrete composite structure reinforcing bar binding job practices.
Background technology
Existing reinforced concrete composite structure reinforcing bar binding construction is complicated, and quality is undesirable, needs further to be improved.
Summary of the invention
The object of the present invention is to provide a kind of easy construction, the reinforced concrete composite structure reinforcing bar binding job practices that construction quality is good.
Technical solution of the present invention is:
A kind of reinforced concrete composite structure reinforcing bar binding job practices, is characterized in that: comprise the following steps:
(1) profile steel concrete column reinforcing bar operation
The construction of post joint bar: the post joint bar installs before lower floor's beam slab concreting; The downward anchorage length of joint bar meets design requirement, and the length of ejecting plate face meets: joint location staggers 50% mutually, and height joint spacing is greater than 35d; The position of low joint is not less than the maximum value in column length limit size, sixth post clear height, 500mm apart from the size of plate face; At Liang Mianchu, with stirrup, joint bar is positioned, stirrup and beam stirrup spot welding are fixed;
Main reinforce position is checked: emit the position line of post according to axis, check one by one the position of post master muscle, its protective layer thickness is checked requirement, and evenly, minimum spacing is not less than 50mm to the distance between adjacent main muscle;
The welding spacer bars: at the inboard of main muscle welding spacer bars, its longitudinal pitch is controlled at 2 meters, and location dimension is determined by the messenger wire mode;
Joint pin is located main muscle: chooses the main muscle in two of each sides of post as the main muscle in location, this part master muscle connected, and firm with the spacer bars colligation;
Column tie-bar
Stirrup is made: the column tie-bar termination curves 135 degree, and straight portion length is not less than 10d, and d is stirrup diameter; Stirrup sectional making at the column beam joint place, overlap joint is welded into closed stirrup, and when girder steel is made, perforate on web, pass to meet stirrup;
The stirrup colligation: stirrup in first installing, outer stirrup is installed; After every inside and outside hoop together, descend inside and outside hoop together; Stirrup is vertical with main muscle, stirrup corner and the equal colligation of main muscle intersection point, and main muscle becomes the plum blossom colligation that interlocks with the joining of the non-corner of stirrup; The superimposed place of the crotch of stirrup should be along four jiaos of interlaced arrangement of pillar, and colligation is firm; Stirrup is hooked in the lacing wire of stirrup setting;
Post master muscle connects: main muscle injects in stirrup from the top down, with the bottom joint, is connected; Main muscle connects from one jiao along the post outside and continuously reinforcing bar is connected, and when the internal layer reinforcing bar is arranged, first connects the internal layer reinforcing bar, then connects outer reinforcement; After connecting, main muscle carries out comprehensive colligation;
The post tendon protective layer: the topping cushion block finally is installed, and cushion block should be tied up on the column vertical rib crust, spacing 1000mm, and cushion block adopts cement or plastic cushion;
The girder with rolled steel section en cased in concrete operation
Steel beam surface is cleaned out, checked the operating platform of construction operation, set up firmly protection safety;
Reinforcing bar location: at the soffit welding location of beam face reinforcing bar cross-arm reinforcing bar, and at the bottom of setting up for the temporary supporting beam at the bottom of girder steel the support of reinforcing bar; The cross-arm reinforcing bar is selected large diameter reinforcing bar, and longitudinal pitch is determined its longitudinal pitch according to the diameter of beam main tendon, guarantees that main muscle does not drop;
The steel plate that the welding beam anchorage is used: according to the position of main muscle, determine steel plate position, its upper level is concordant with the soffit of main muscle; In the beam end portion that can not meet the anchoring requirement, the frange plate of beam main tendon end and steel column intersects, and reinforcing bar flat segments anchorage length can not meet design and code requirement, by welding steel on steel column, main muscle is welded on steel plate, reaches the anchoring requirement;
Main muscle is installed:
Main muscle order: the main muscle in first installing in stirrup, after interior stirrup installation, the outer main muscle of stirrup in installing; At first carry out reinforcement installation at the bottom of beam, then mounting rail face reinforcing bar;
Main muscle is installed: at the bottom of beam face or beam, master's muscle first all is placed on a row above, and after main muscle is put, bar splice connects;
Bar Anchorage: not directly anchored in wall or post by the main muscle that steel column affects; Need on steel plate, weld the main muscle of anchoring, be welded after the stirrup colligation;
Reinforcing bar connects: steel bar connector position lower rebar joint is in 1/3rd scopes of beam-ends span, in upper reinforcement joint beam in 1/3rd scopes of span.The reinforcing bar connection is from one end to the other side carried out successively; The connection concrete regulation of reinforcing bar:
A) joint of steel bar stress is arranged on stressed smaller part; The distance that connector end to reinforcing bar bends up a little is not less than 10 times of bar diameter;
B) if adopt the colligation lap joint, the colligation joint of the adjacent Reinforcement of joint staggers mutually; The length of reinforcing bar binding joint jointing is 1.3 times of lap length; The lap joint that all lap joint mid points are positioned at this section all belongs to same jointing; The tensile reinforcement lap joint area percentage that is positioned at same section is 25%;
C) when the diameter d of reinforcing bar>18mm, do not adopt the colligation joint.
When d) Reinforcement adopts mechanical connecting joint or welding point, the length of jointing is 35d, and d is the Reinforcement diameter, and is not less than 500mm; In same jointing, the joint area percentage of Reinforcement should meet design code, when the design no standard, should meet the following requirements:
Be not more than 50% in tensile region; Directly bear in the structural element of dynamic loading, do not adopt welding point; When adopting mechanical connecting joint, be not more than 50%;
Stirrup installation: stirrup is made as whole stirrup; Draw location point according to design pitch on the master's muscle of beam face both sides; The opening of stirrup is placed on the beam face, the adjacent apertures placement of staggering; Stirrup is enclosed within on beam main tendon after pulling open from bottom to top, simultaneously that stirrup top and main muscle colligation is firm.The stirrup colligation is firm by the whole colligations of intersection point of stirrup and main muscle, waist muscle;
The waist muscle is installed: after interior stirrup installation, will near the waist muscle colligation of interior stirrup one side on stirrup, the outer side waist muscle be temporarily fixed on stirrup, carry out colligation after the whole colligations of outer stirrup and put in place;
Outer stirrup colligation is identical with interior stirrup way, after colligation, the colligation steel tie, finally the beam bottom reinforcement bars is fallen on stirrup and colligation firm;
Weld main muscle anchoring section, carry out two-sided welding, fusion length is not less than 5d, and d is main muscle diameter.
Easy construction of the present invention, construction quality is good.
Below in conjunction with embodiment, the invention will be further described.
The specific embodiment
A kind of reinforced concrete composite structure reinforcing bar binding job practices, comprise the following steps:
(1) profile steel concrete column reinforcing bar operation
The construction of post joint bar: the post joint bar installs before lower floor's beam slab concreting; The downward anchorage length of joint bar meets design requirement, and the length of ejecting plate face meets: joint location staggers 50% mutually, and height joint spacing is greater than 35d; The position of low joint is not less than the maximum value in column length limit size, sixth post clear height, 500mm apart from the size of plate face; At Liang Mianchu, with stirrup, joint bar is positioned, stirrup and beam stirrup spot welding are fixed;
Main reinforce position is checked: emit the position line of post according to axis, check one by one the position of post master muscle, its protective layer thickness is checked requirement, and evenly, minimum spacing is not less than 50mm to the distance between adjacent main muscle;
The welding spacer bars: at the inboard of main muscle welding spacer bars, its longitudinal pitch is controlled at 2 meters, and location dimension is determined by the messenger wire mode;
Joint pin is located main muscle: chooses the main muscle in two of each sides of post as the main muscle in location, this part master muscle connected, and firm with the spacer bars colligation;
Column tie-bar
Stirrup is made: the column tie-bar termination curves 135 degree, and straight portion length is not less than 10d, and d is stirrup diameter; Stirrup sectional making at the column beam joint place, overlap joint is welded into closed stirrup, and when girder steel is made, perforate on web, pass to meet stirrup;
The stirrup colligation: stirrup in first installing, outer stirrup is installed; After every inside and outside hoop together, descend inside and outside hoop together; Stirrup is vertical with main muscle, stirrup corner and the equal colligation of main muscle intersection point, and main muscle becomes the plum blossom colligation that interlocks with the joining of the non-corner of stirrup; The superimposed place of the crotch of stirrup should be along four jiaos of interlaced arrangement of pillar, and colligation is firm; Stirrup is hooked in the lacing wire of stirrup setting;
Post master muscle connects: main muscle injects in stirrup from the top down, with the bottom joint, is connected; Main muscle connects from one jiao along the post outside and continuously reinforcing bar is connected, and when the internal layer reinforcing bar is arranged, first connects the internal layer reinforcing bar, then connects outer reinforcement; After connecting, main muscle carries out comprehensive colligation;
The post tendon protective layer: the topping cushion block finally is installed, and cushion block should be tied up on the column vertical rib crust, spacing 1000mm, and cushion block adopts cement or plastic cushion;
The girder with rolled steel section en cased in concrete operation
Steel beam surface is cleaned out, checked the operating platform of construction operation, set up firmly protection safety;
Reinforcing bar location: at the soffit welding location of beam face reinforcing bar cross-arm reinforcing bar, and at the bottom of setting up for the temporary supporting beam at the bottom of girder steel the support of reinforcing bar; The cross-arm reinforcing bar is selected large diameter reinforcing bar, and longitudinal pitch is determined its longitudinal pitch according to the diameter of beam main tendon, guarantees that main muscle does not drop;
The steel plate that the welding beam anchorage is used: according to the position of main muscle, determine steel plate position, its upper level is concordant with the soffit of main muscle; In the beam end portion that can not meet the anchoring requirement, the frange plate of beam main tendon end and steel column intersects, and reinforcing bar flat segments anchorage length can not meet design and code requirement, by welding steel on steel column, main muscle is welded on steel plate, reaches the anchoring requirement;
Main muscle is installed:
Main muscle order: the main muscle in first installing in stirrup, after interior stirrup installation, the outer main muscle of stirrup in installing; At first carry out reinforcement installation at the bottom of beam, then mounting rail face reinforcing bar;
Main muscle is installed: at the bottom of beam face or beam, master's muscle first all is placed on a row above, and after main muscle is put, bar splice connects;
Bar Anchorage: not directly anchored in wall or post by the main muscle that steel column affects; Need on steel plate, weld the main muscle of anchoring, be welded after the stirrup colligation;
Reinforcing bar connects: steel bar connector position lower rebar joint is in 1/3rd scopes of beam-ends span, in upper reinforcement joint beam in 1/3rd scopes of span.The reinforcing bar connection is from one end to the other side carried out successively; The connection concrete regulation of reinforcing bar:
A) joint of steel bar stress is arranged on stressed smaller part; The distance that connector end to reinforcing bar bends up a little is not less than 10 times of bar diameter;
B) if adopt the colligation lap joint, the colligation joint of the adjacent Reinforcement of joint staggers mutually; The length of reinforcing bar binding joint jointing is 1.3 times of lap length; The lap joint that all lap joint mid points are positioned at this section all belongs to same jointing; The tensile reinforcement lap joint area percentage that is positioned at same section is 25%;
C) when the diameter d of reinforcing bar>18mm, do not adopt the colligation joint.
When d) Reinforcement adopts mechanical connecting joint or welding point, the length of jointing is 35d, and d is the Reinforcement diameter, and is not less than 500mm; In same jointing, the joint area percentage of Reinforcement should meet design code, when the design no standard, should meet the following requirements:
Be not more than 50% in tensile region; Directly bear in the structural element of dynamic loading, do not adopt welding point; When adopting mechanical connecting joint, be not more than 50%;
Stirrup installation: stirrup is made as whole stirrup; Draw location point according to design pitch on the master's muscle of beam face both sides; The opening of stirrup is placed on the beam face, the adjacent apertures placement of staggering; Stirrup is enclosed within on beam main tendon after pulling open from bottom to top, simultaneously that stirrup top and main muscle colligation is firm.The stirrup colligation is firm by the whole colligations of intersection point of stirrup and main muscle, waist muscle;
The waist muscle is installed: after interior stirrup installation, will near the waist muscle colligation of interior stirrup one side on stirrup, the outer side waist muscle be temporarily fixed on stirrup, carry out colligation after the whole colligations of outer stirrup and put in place;
Outer stirrup colligation is identical with interior stirrup way, after colligation, the colligation steel tie, finally the beam bottom reinforcement bars is fallen on stirrup and colligation firm;
Weld main muscle anchoring section, carry out two-sided welding, fusion length is not less than 5d, and d is main muscle diameter.
Claims (1)
1. a reinforced concrete composite structure reinforcing bar binding job practices, is characterized in that: comprise the following steps:
(1) profile steel concrete column reinforcing bar operation
The construction of post joint bar: the post joint bar installs before lower floor's beam slab concreting; The downward anchorage length of joint bar meets design requirement, and the length of ejecting plate face meets: joint location staggers 50% mutually, and height joint spacing is greater than 35d; The position of low joint is not less than the maximum value in column length limit size, sixth post clear height, 500mm apart from the size of plate face; At Liang Mianchu, with stirrup, joint bar is positioned, stirrup and beam stirrup spot welding are fixed;
Main reinforce position is checked: emit the position line of post according to axis, check one by one the position of post master muscle, its protective layer thickness is checked requirement, and evenly, minimum spacing is not less than 50mm to the distance between adjacent main muscle;
The welding spacer bars: at the inboard of main muscle welding spacer bars, its longitudinal pitch is controlled at 2 meters, and location dimension is determined by the messenger wire mode;
Joint pin is located main muscle: chooses the main muscle in two of each sides of post as the main muscle in location, this part master muscle connected, and firm with the spacer bars colligation;
Column tie-bar
Stirrup is made: the column tie-bar termination curves 135 degree, and straight portion length is not less than 10d, and d is stirrup diameter; Stirrup sectional making at the column beam joint place, overlap joint is welded into closed stirrup, and when girder steel is made, perforate on web, pass to meet stirrup;
The stirrup colligation: stirrup in first installing, outer stirrup is installed; After every inside and outside hoop together, descend inside and outside hoop together; Stirrup is vertical with main muscle, stirrup corner and the equal colligation of main muscle intersection point, and main muscle becomes the plum blossom colligation that interlocks with the joining of the non-corner of stirrup; The superimposed place of the crotch of stirrup should be along four jiaos of interlaced arrangement of pillar, and colligation is firm; Stirrup is hooked in the lacing wire of stirrup setting;
Post master muscle connects: main muscle injects in stirrup from the top down, with the bottom joint, is connected; Main muscle connects from one jiao along the post outside and continuously reinforcing bar is connected, and when the internal layer reinforcing bar is arranged, first connects the internal layer reinforcing bar, then connects outer reinforcement; After connecting, main muscle carries out comprehensive colligation;
The post tendon protective layer: the topping cushion block finally is installed, and cushion block should be tied up on the column vertical rib crust, spacing 1000mm, and cushion block adopts cement or plastic cushion;
The girder with rolled steel section en cased in concrete operation
Steel beam surface is cleaned out, checked the operating platform of construction operation, set up firmly protection safety;
Reinforcing bar location: at the soffit welding location of beam face reinforcing bar cross-arm reinforcing bar, and at the bottom of setting up for the temporary supporting beam at the bottom of girder steel the support of reinforcing bar; The cross-arm reinforcing bar is selected large diameter reinforcing bar, and longitudinal pitch is determined its longitudinal pitch according to the diameter of beam main tendon, guarantees that main muscle does not drop;
The steel plate that the welding beam anchorage is used: according to the position of main muscle, determine steel plate position, its upper level is concordant with the soffit of main muscle; In the beam end portion that can not meet the anchoring requirement, the frange plate of beam main tendon end and steel column intersects, and reinforcing bar flat segments anchorage length can not meet design and code requirement, by welding steel on steel column, main muscle is welded on steel plate, reaches the anchoring requirement;
Main muscle is installed:
Main muscle order: the main muscle in first installing in stirrup, after interior stirrup installation, the outer main muscle of stirrup in installing; At first carry out reinforcement installation at the bottom of beam, then mounting rail face reinforcing bar;
Main muscle is installed: at the bottom of beam face or beam, master's muscle first all is placed on a row above, and after main muscle is put, bar splice connects;
Bar Anchorage: not directly anchored in wall or post by the main muscle that steel column affects; Need on steel plate, weld the main muscle of anchoring, be welded after the stirrup colligation;
Reinforcing bar connects: steel bar connector position lower rebar joint is in 1/3rd scopes of beam-ends span, in upper reinforcement joint beam in 1/3rd scopes of span.The reinforcing bar connection is from one end to the other side carried out successively; The connection concrete regulation of reinforcing bar:
A) joint of steel bar stress is arranged on stressed smaller part; The distance that connector end to reinforcing bar bends up a little is not less than 10 times of bar diameter;
B) if adopt the colligation lap joint, the colligation joint of the adjacent Reinforcement of joint staggers mutually; The length of reinforcing bar binding joint jointing is 1.3 times of lap length; The lap joint that all lap joint mid points are positioned at this section all belongs to same jointing; The tensile reinforcement lap joint area percentage that is positioned at same section is 25%;
C) when the diameter d of reinforcing bar>18mm, do not adopt the colligation joint.
When d) Reinforcement adopts mechanical connecting joint or welding point, the length of jointing is 35d, and d is the Reinforcement diameter, and is not less than 500mm; In same jointing, the joint area percentage of Reinforcement should meet design code, when the design no standard, should meet the following requirements:
Be not more than 50% in tensile region; Directly bear in the structural element of dynamic loading, do not adopt welding point; When adopting mechanical connecting joint, be not more than 50%;
Stirrup installation: stirrup is made as whole stirrup; Draw location point according to design pitch on the master's muscle of beam face both sides; The opening of stirrup is placed on the beam face, the adjacent apertures placement of staggering; Stirrup is enclosed within on beam main tendon after pulling open from bottom to top, simultaneously that stirrup top and main muscle colligation is firm.The stirrup colligation is firm by the whole colligations of intersection point of stirrup and main muscle, waist muscle;
The waist muscle is installed: after interior stirrup installation, will near the waist muscle colligation of interior stirrup one side on stirrup, the outer side waist muscle be temporarily fixed on stirrup, carry out colligation after the whole colligations of outer stirrup and put in place;
Outer stirrup colligation is identical with interior stirrup way, after colligation, the colligation steel tie, finally the beam bottom reinforcement bars is fallen on stirrup and colligation firm;
Weld main muscle anchoring section, carry out two-sided welding, fusion length is not less than 5d, and d is main muscle diameter.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088402A (en) * | 2014-07-21 | 2014-10-08 | 李红波 | Structure and method for preventing vertical steel bars from deforming in construction |
| CN104878939A (en) * | 2015-04-29 | 2015-09-02 | 中国建筑第八工程局有限公司 | Method for constructing vertical reinforcing steel bars in large-section concrete structures |
| CN105350723A (en) * | 2015-10-30 | 2016-02-24 | 中国建筑第八工程局有限公司 | Steel bar construction method and steel bar connection structure of a structural beam and a reinforced column |
| CN105421790A (en) * | 2016-01-12 | 2016-03-23 | 广东省建筑构件工程有限公司 | Method for mounting ultra-wide ultra-high reinforced concrete beam large-diameter steel bar |
| CN108868006A (en) * | 2017-05-12 | 2018-11-23 | 五冶集团上海有限公司 | The epoxy coating column tie-bar binding method of corrosive environment Frame Column Under |
| CN108999398A (en) * | 2018-06-29 | 2018-12-14 | 浙江展诚建设集团股份有限公司 | The Formwork Installation Method of steel and concrete composite structure beam |
| CN109779151A (en) * | 2019-02-14 | 2019-05-21 | 中国核电工程有限公司 | A kind of installation method of major diameter lacing wire |
| CN110331780A (en) * | 2019-07-02 | 2019-10-15 | 中国建筑第八工程局有限公司 | Wind tunnel body structure construction steel bar arrangement method |
| CN111335364A (en) * | 2020-03-06 | 2020-06-26 | 河北建设集团股份有限公司 | Construction method for steel bar structure at concrete outer wall column when steel plate waterstop meets concrete |
| CN113605604A (en) * | 2021-08-05 | 2021-11-05 | 中国建筑一局(集团)有限公司 | Constructional column steel bar structure and construction method thereof |
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| CN103031959A (en) * | 2012-12-31 | 2013-04-10 | 攀钢集团工程技术有限公司 | Insulating and binding method for stainless steel reinforcing steel bars at anti-magnetic area |
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| CN101575844A (en) * | 2009-06-05 | 2009-11-11 | 中国葛洲坝集团股份有限公司 | Accurate contraposition connection method of horizontally embedded reinforcing steel bars |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088402A (en) * | 2014-07-21 | 2014-10-08 | 李红波 | Structure and method for preventing vertical steel bars from deforming in construction |
| CN104878939A (en) * | 2015-04-29 | 2015-09-02 | 中国建筑第八工程局有限公司 | Method for constructing vertical reinforcing steel bars in large-section concrete structures |
| CN105350723A (en) * | 2015-10-30 | 2016-02-24 | 中国建筑第八工程局有限公司 | Steel bar construction method and steel bar connection structure of a structural beam and a reinforced column |
| CN105421790A (en) * | 2016-01-12 | 2016-03-23 | 广东省建筑构件工程有限公司 | Method for mounting ultra-wide ultra-high reinforced concrete beam large-diameter steel bar |
| CN108868006A (en) * | 2017-05-12 | 2018-11-23 | 五冶集团上海有限公司 | The epoxy coating column tie-bar binding method of corrosive environment Frame Column Under |
| CN108999398A (en) * | 2018-06-29 | 2018-12-14 | 浙江展诚建设集团股份有限公司 | The Formwork Installation Method of steel and concrete composite structure beam |
| CN109779151A (en) * | 2019-02-14 | 2019-05-21 | 中国核电工程有限公司 | A kind of installation method of major diameter lacing wire |
| CN109779151B (en) * | 2019-02-14 | 2021-07-02 | 中国核电工程有限公司 | Installation method of large-diameter lacing wire |
| CN110331780A (en) * | 2019-07-02 | 2019-10-15 | 中国建筑第八工程局有限公司 | Wind tunnel body structure construction steel bar arrangement method |
| CN111335364A (en) * | 2020-03-06 | 2020-06-26 | 河北建设集团股份有限公司 | Construction method for steel bar structure at concrete outer wall column when steel plate waterstop meets concrete |
| CN111335364B (en) * | 2020-03-06 | 2022-07-26 | 河北建设集团股份有限公司 | Construction method for steel bar structure at concrete outer wall column when steel plate waterstop meets concrete |
| CN113605604A (en) * | 2021-08-05 | 2021-11-05 | 中国建筑一局(集团)有限公司 | Constructional column steel bar structure and construction method thereof |
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