CN102888979A - Joint processing and constructing method of overhanging scaffold at large cantilever balcony - Google Patents
Joint processing and constructing method of overhanging scaffold at large cantilever balcony Download PDFInfo
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- CN102888979A CN102888979A CN2012104105893A CN201210410589A CN102888979A CN 102888979 A CN102888979 A CN 102888979A CN 2012104105893 A CN2012104105893 A CN 2012104105893A CN 201210410589 A CN201210410589 A CN 201210410589A CN 102888979 A CN102888979 A CN 102888979A
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- 239000010959 steel Substances 0.000 claims abstract description 58
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- 239000000789 fastener Substances 0.000 claims description 6
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- 238000009408 flooring Methods 0.000 claims description 3
- 238000005246 galvanizing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
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- 238000003032 molecular docking Methods 0.000 claims description 3
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Abstract
The invention discloses a joint processing and constructing method of an overhanging scaffold at a large cantilever balcony. The erection height of the overhanging scaffold is 19.5m; #18 I-shaped steels are adopted as horizontal overhanging rods at an overhanging section; #12.6 channel steels as inclined supports are arranged below the horizontal overhanging rods; steel plate embedded parts of 10mm are welded below the inclined supports; the overhanging scaffolds are arranged at intervals of 1.5m; the steel tube frame above the overhanging scaffolds is erected in accordance with the requirements on a structure frame that the step distance is 1.80m, the transverse distance is 1.05m, the longitudinal distance is 1.5m, and the distance is identical to the distance of a shape steel overhanging scaffold, so that vertical rods can all be supported on the horizontal overhanging rods of the shape steel overhanging scaffold; the horizontal overhanging rods are all put on the floor and are fixed with the floor by using Phi16omega-shaped embedded reinforcing steel rings. The method is convenient in construction, safe and good in effect.
Description
Technical field
The present invention relates to the node processing job practices of a kind of large cantilever balcony place builder's jack.
Background technology
Existing part engineering only depends on shaped steel to do to choose the position to bear scaffold and can not satisfy load bearing requirements because floor balcony slab top cantilever end is larger, and the node of the balcony place builder's jack of encorbelmenting is more difficult, and prior art is difficult to address these problems.
Summary of the invention
The object of the present invention is to provide the node processing job practices of a kind of easy construction, safe, effective large cantilever balcony place builder's jack.
Technical solution of the present invention is:
The node processing job practices of a kind of large cantilever balcony place builder's jack is characterized in that: comprise the following steps:
The section of encorbelmenting scaffold building height is 19.5m, the section of encorbelmenting adopts No. 18 i iron to make horizontal rod from flooring, the bottom arranges No. 12.6 channel-section steels and makes diagonal brace, the diagonal brace bottom arranges the welding of 10mm steel plate built-in fitting, and builder's jack is pressed not@1.5m pitch arrangement, and the steel pipe frame on builder's jack top is set up by the structural frame requirement: step pitch 1.80m, transfer 1.05m, advance 1.5m, identical with the shaped steel suspension scaffolding spacing, so that vertical rod all can be propped up on the horizontal rod of shaped steel suspension scaffolding; Horizontal rod all is placed on the floor, fixes with φ 16 Ω shape embedded bar rings and floor;
Scaffold upright rod all adopts single vertical rod, and the vertical rod longitudinal pitch is 1.5 meters, and the vertical rod horizontal spacing is 1.05 meters; The leger step pitch is 1.8 meters; All steel pipes all adopt Φ 48 * 3.0mm;
Entangle horizontal rod, fastening rear firm welding along horizontal rod axis front and back pre-buried 2 φ, 16 Ω shape reinforcing bars on main frame beam; Leading portion cantilever port arranges common 2B14 screw-thread steel and is limited in the fixing rear sealing suitable for reading of girder steel as located lateral, and the channel-section steel diagonal brace is set under the horizontal rod No. 12.6, and support is on the master of lower floor frame beam;
The setting of outrigger bridging:
The per pass bridging is crossed over the radical of vertical rod between 5～7, and per pass bridging width should not striden less than 4, and is not less than 6m, and the brace inclination angle is between 45～60 degree; Bridging every section whole length of facade and highly continuously setting outside support body; The brace of bridging overlap joint, its lap length be greater than 1m, and buckle with two rotary buckles at least; The scissors hound is fixed on the external part or vertical rod of the transverse horizontal bar that intersects with it with rotary buckle, and the rotary buckle center line is not more than 150mm apart from the distance of host node;
The order of setting up of steel pipe scaffold is: rod → weld horizontal is installed supports → weld diagonal brace → establish vertical rod by root, and with the bar fastening → dress of sweeping the floor sweep the floor little cross bar → namely and vertical rod or the bar fastening of sweeping the floor → by first step leger and with each the vertical rod fastening → little cross bar of peace first little cross bar → peace second step leger → second step → installation wall-connecting piece → third and fourth goes on foot leger and little cross bar → wall connecting rod → connect vertical rod → add shearing to support → spread pin hand sheet;
Fastener when setting up rod member is installed:
1. connect leger to clasp, opening is inboard towards shelf, bolt upwards enters with rainwater-proof;
When 2. filling bolt root is just put, torsional moment is controlled at 30-40Nm;
Structure to the double-row steel pipe frame:
1) sets up size
Select transfer 1.05m, advance 1.5m, step pitch 1.8m, the vertical spacing 3.6m of wall-connecting piece, level interval 2.4m, facade adopt totally enclosed type safety vertical net sealing protection.
2) structure
1. vertical rod
Joint adopts docking, and with the joint interlaced arrangement, and two adjacent vertical rod joints are not located at synchronously with in striding, and is not less than 500mm in the distance that short transverse staggers, and each joint center to center distance host node distance is not more than 1/3 of step pitch;
It is 1.8m that the masthead end exceeds roofing framework heights of roofs, every bottom of upright rod all is inserted on Ф 25 reinforcing bars on the builder's jack shaped steel, the direction bar of sweeping the floor is set in length and breadth, the bar of vertically sweeping the floor adopts right-angle coupler to be fixed on apart from the base hypodermis and is not more than in the vertical rod at 200mm place, and the bar of laterally sweeping the floor adopts right-angle coupler to be fixed near in the vertical rod below the bar of vertically sweeping the floor;
2. vertical equity bar
The vertical equity bar is located on the transverse horizontal bar, and with the right-angle coupler fastening, every layer is set up 4 vertical equity bars; Employing connects clasp.The joint interlaced arrangement, adjacent joint horizontal range is not less than 500mm, is not located at in striding, and is not located at the horizon bar span centre;
3. each host node place of transverse horizontal bar arranges a transverse horizontal bar, and every side extension is not less than 100mm;
4. scaffold floor
Adopt bamboo basketry sole, length and width is 1.0 * 1.2m, adopts carvel built, is layed on 4 vertical equity bars, and it is that the zinc-coated wire of 1.2mm is fixed on the vertical equity bar that diameter is adopted at four angles; Scaffold floor will completely spread;
5. wall-connecting piece
Adopt rigid connecting tube, formed by φ 48 short steel pipes, 40*5mm band steel; The 40*5mm band steel is embedded in floor reinforced concrete post and the side bar, and length is 350mm in the anchor people concrete, all establishes bearing tension for every layer; The length of wall-connecting piece is no more than 300mm;
Wall-connecting piece adopts flower to arrange and puts, and near the host node position, departs from host node and be not more than 300mm; Wall-connecting piece since end step first vertical equity bar place arrange, wall-connecting piece is level and perpendicular to the metope setting;
6. bridging
Per pass bridging width is 4 to stride, the inclination angle of brace and horizontal cross bar is between 45 °-60 °, adopt whole facade to arrange continuously, the brace spreading adopts to tie up to connect and connects, and adopt to turn and detain on the external part that is fixed on crossing with it vertical rod or transverse horizontal bar, turn and smash heart line-spacing host node distance less than 150mm; Brace has 4 fixed points that link to each other with vertical rod or horizon bar;
7. fastener is installed
1) connect leger to clasp, opening is inboard towards shelf, bolt upwards enters with rainwater-proof;
Root just should be put when 2) filling bolt and be controlled at 30～40N.M with torsional moment;
3) anti-electric lightning measure: 4 lightning rods are set altogether, and lightning rod adopts φ 12 galvanizing steels to make, and length is 1m, is arranged on four jiaos of scaffold upright rods of main building outrigger, and the leger of all smallest tier all is communicated with, and forms lightning-arrest network;
It is 8mm that down lead adopts φ 8(diameter) round steel, vertical rod is connected with lightning protection system in the whole building building floor, welding is adopted in the contact position;
The balcony of encorbelmenting for 3.6 meters; because the tie point of diagonal brace and horizontal rod is hung the side bar inboard; thereby the bar of encorbelmenting may exert an influence to the balcony of encorbelmenting after stressed; so take corresponding measure as follows: below the bar of encorbelmenting of every builder's jack, hang the side bar bottom position; the distance between tie rods of encorbelmenting according to builder's jack; the every bar below of encorbelmenting hangs the side bar bottom position a vertical vertical posts all is set, to strengthen the protective effect to builder's jack.
Easy construction of the present invention, safe, effective.
The invention will be further described below in conjunction with embodiment.
The specific embodiment
The node processing job practices of a kind of large cantilever balcony place builder's jack comprises the following steps:
The section of encorbelmenting scaffold building height is 19.5m, the section of encorbelmenting adopts No. 18 i iron to make horizontal rod from flooring, the bottom arranges No. 12.6 channel-section steels and makes diagonal brace, the diagonal brace bottom arranges the welding of 10mm steel plate built-in fitting, and builder's jack is pressed not@1.5m pitch arrangement, and the steel pipe frame on builder's jack top is set up by the structural frame requirement: step pitch 1.80m, transfer 1.05m, advance 1.5m, identical with the shaped steel suspension scaffolding spacing, so that vertical rod all can be propped up on the horizontal rod of shaped steel suspension scaffolding; Horizontal rod all is placed on the floor, fixes with φ 16 Ω shape embedded bar rings and floor;
Scaffold upright rod all adopts single vertical rod, and the vertical rod longitudinal pitch is 1.5 meters, and the vertical rod horizontal spacing is 1.05 meters; The leger step pitch is 1.8 meters; All steel pipes all adopt Φ 48 * 3.0mm;
Entangle horizontal rod, fastening rear firm welding along horizontal rod axis front and back pre-buried 2 φ, 16 Ω shape reinforcing bars on main frame beam; Leading portion cantilever port arranges common 2B14 screw-thread steel and is limited in the fixing rear sealing suitable for reading of girder steel as located lateral, and the channel-section steel diagonal brace is set under the horizontal rod No. 12.6, and support is on the master of lower floor frame beam;
The setting of outrigger bridging:
The per pass bridging is crossed over the radical of vertical rod between 5～7, and per pass bridging width should not striden less than 4, and is not less than 6m, and the brace inclination angle is between 45～60 degree; Bridging every section whole length of facade and highly continuously setting outside support body; The brace of bridging overlap joint, its lap length be greater than 1m, and buckle with two rotary buckles at least; The scissors hound is fixed on the external part or vertical rod of the transverse horizontal bar that intersects with it with rotary buckle, and the rotary buckle center line is not more than 150mm apart from the distance of host node;
The order of setting up of steel pipe scaffold is: rod → weld horizontal is installed supports → weld diagonal brace → establish vertical rod by root, and with the bar fastening → dress of sweeping the floor sweep the floor little cross bar → namely and vertical rod or the bar fastening of sweeping the floor → by first step leger and with each the vertical rod fastening → little cross bar of peace first little cross bar → peace second step leger → second step → installation wall-connecting piece → third and fourth goes on foot leger and little cross bar → wall connecting rod → connect vertical rod → add shearing to support → spread pin hand sheet;
Fastener when setting up rod member is installed:
1. connect leger to clasp, opening is inboard towards shelf, bolt upwards enters with rainwater-proof;
When 2. filling bolt root is just put, torsional moment is controlled at 30-40Nm;
Structure to the double-row steel pipe frame:
1) sets up size
Select transfer 1.05m, advance 1.5m, step pitch 1.8m, the vertical spacing 3.6m of wall-connecting piece, level interval 2.4m, facade adopt totally enclosed type safety vertical net sealing protection.
2) structure
1. vertical rod
Joint adopts docking, and with the joint interlaced arrangement, and two adjacent vertical rod joints are not located at synchronously with in striding, and is not less than 500mm in the distance that short transverse staggers, and each joint center to center distance host node distance is not more than 1/3 of step pitch;
It is 1.8m that the masthead end exceeds roofing framework heights of roofs, every bottom of upright rod all is inserted on Ф 25 reinforcing bars on the builder's jack shaped steel, the direction bar of sweeping the floor is set in length and breadth, the bar of vertically sweeping the floor adopts right-angle coupler to be fixed on apart from the base hypodermis and is not more than in the vertical rod at 200mm place, and the bar of laterally sweeping the floor adopts right-angle coupler to be fixed near in the vertical rod below the bar of vertically sweeping the floor;
2. vertical equity bar
The vertical equity bar is located on the transverse horizontal bar, and with the right-angle coupler fastening, every layer is set up 4 vertical equity bars; Employing connects clasp.The joint interlaced arrangement, adjacent joint horizontal range is not less than 500mm, is not located at in striding, and is not located at the horizon bar span centre;
3. each host node place of transverse horizontal bar arranges a transverse horizontal bar, and every side extension is not less than 100mm;
4. scaffold floor
Adopt bamboo basketry sole, length and width is 1.0 * 1.2m, adopts carvel built, is layed on 4 vertical equity bars, and it is that the zinc-coated wire of 1.2mm is fixed on the vertical equity bar that diameter is adopted at four angles; Scaffold floor will completely spread;
5. wall-connecting piece
Adopt rigid connecting tube, formed by φ 48 short steel pipes, 40*5mm band steel; The 40*5mm band steel is embedded in floor reinforced concrete post and the side bar, and length is 350mm in the anchor people concrete, all establishes bearing tension for every layer; The length of wall-connecting piece is no more than 300mm;
Wall-connecting piece adopts flower to arrange and puts, and near the host node position, departs from host node and be not more than 300mm; Wall-connecting piece since end step first vertical equity bar place arrange, wall-connecting piece is level and perpendicular to the metope setting;
6. bridging
Per pass bridging width is 4 to stride, the inclination angle of brace and horizontal cross bar is between 45 °-60 °, adopt whole facade to arrange continuously, the brace spreading adopts to tie up to connect and connects, and adopt to turn and detain on the external part that is fixed on crossing with it vertical rod or transverse horizontal bar, turn and smash heart line-spacing host node distance less than 150mm; Brace has 4 fixed points that link to each other with vertical rod or horizon bar;
7. fastener is installed
1) connect leger to clasp, opening is inboard towards shelf, bolt upwards enters with rainwater-proof;
Root just should be put when 2) filling bolt and be controlled at 30～40N.M with torsional moment;
3) anti-electric lightning measure: 4 lightning rods are set altogether, and lightning rod adopts φ 12 galvanizing steels to make, and length is 1m, is arranged on four jiaos of scaffold upright rods of main building outrigger, and the leger of all smallest tier all is communicated with, and forms lightning-arrest network;
It is 8mm that down lead adopts φ 8(diameter) round steel, vertical rod is connected with lightning protection system in the whole building building floor, welding is adopted in the contact position;
The balcony of encorbelmenting for 3.6 meters; because the tie point of diagonal brace and horizontal rod is hung the side bar inboard; thereby the bar of encorbelmenting may exert an influence to the balcony of encorbelmenting after stressed; so take corresponding measure as follows: below the bar of encorbelmenting of every builder's jack, hang the side bar bottom position; the distance between tie rods of encorbelmenting according to builder's jack; the every bar below of encorbelmenting hangs the side bar bottom position a vertical vertical posts all is set, to strengthen the protective effect to builder's jack.
Claims (1)
1. the node processing job practices of a large cantilever balcony place builder's jack is characterized in that: comprise the following steps:
The section of encorbelmenting scaffold building height is 19.5m, the section of encorbelmenting adopts No. 18 i iron to make horizontal rod from flooring, the bottom arranges No. 12.6 channel-section steels and makes diagonal brace, the diagonal brace bottom arranges the welding of 10mm steel plate built-in fitting, and builder's jack is pressed not@1.5m pitch arrangement, and the steel pipe frame on builder's jack top is set up by the structural frame requirement: step pitch 1.80m, transfer 1.05m, advance 1.5m, identical with the shaped steel suspension scaffolding spacing, so that vertical rod all can be propped up on the horizontal rod of shaped steel suspension scaffolding; Horizontal rod all is placed on the floor, fixes with φ 16 Ω shape embedded bar rings and floor;
Scaffold upright rod all adopts single vertical rod, and the vertical rod longitudinal pitch is 1.5 meters, and the vertical rod horizontal spacing is 1.05 meters; The leger step pitch is 1.8 meters; All steel pipes all adopt Φ 48 * 3.0mm;
Entangle horizontal rod, fastening rear firm welding along horizontal rod axis front and back pre-buried 2 φ, 16 Ω shape reinforcing bars on main frame beam; Leading portion cantilever port arranges common 2B14 screw-thread steel and is limited in the fixing rear sealing suitable for reading of girder steel as located lateral, and the channel-section steel diagonal brace is set under the horizontal rod No. 12.6, and support is on the master of lower floor frame beam;
The setting of outrigger bridging:
The per pass bridging is crossed over the radical of vertical rod between 5～7, and per pass bridging width should not striden less than 4, and is not less than 6m, and the brace inclination angle is between 45～60 degree; Bridging every section whole length of facade and highly continuously setting outside support body; The brace of bridging overlap joint, its lap length be greater than 1m, and buckle with two rotary buckles at least; The scissors hound is fixed on the external part or vertical rod of the transverse horizontal bar that intersects with it with rotary buckle, and the rotary buckle center line is not more than 150mm apart from the distance of host node;
The order of setting up of steel pipe scaffold is: rod → weld horizontal is installed supports → weld diagonal brace → establish vertical rod by root, and with the bar fastening → dress of sweeping the floor sweep the floor little cross bar → namely and vertical rod or the bar fastening of sweeping the floor → by first step leger and with each the vertical rod fastening → little cross bar of peace first little cross bar → peace second step leger → second step → installation wall-connecting piece → third and fourth goes on foot leger and little cross bar → wall connecting rod → connect vertical rod → add shearing to support → spread pin hand sheet;
Fastener when setting up rod member is installed:
1. connect leger to clasp, opening is inboard towards shelf, bolt upwards enters with rainwater-proof;
When 2. filling bolt root is just put, torsional moment is controlled at 30-40Nm;
Structure to the double-row steel pipe frame:
1) sets up size
Select transfer 1.05m, advance 1.5m, step pitch 1.8m, the vertical spacing 3.6m of wall-connecting piece, level interval 2.4m, facade adopt totally enclosed type safety vertical net sealing protection.
2) structure
1. vertical rod
Joint adopts docking, and with the joint interlaced arrangement, and two adjacent vertical rod joints are not located at synchronously with in striding, and is not less than 500mm in the distance that short transverse staggers, and each joint center to center distance host node distance is not more than 1/3 of step pitch;
It is 1.8m that the masthead end exceeds roofing framework heights of roofs, every bottom of upright rod all is inserted on Ф 25 reinforcing bars on the builder's jack shaped steel, the direction bar of sweeping the floor is set in length and breadth, the bar of vertically sweeping the floor adopts right-angle coupler to be fixed on apart from the base hypodermis and is not more than in the vertical rod at 200mm place, and the bar of laterally sweeping the floor adopts right-angle coupler to be fixed near in the vertical rod below the bar of vertically sweeping the floor;
2. vertical equity bar
The vertical equity bar is located on the transverse horizontal bar, and with the right-angle coupler fastening, every layer is set up 4 vertical equity bars; Employing connects clasp.The joint interlaced arrangement, adjacent joint horizontal range is not less than 500mm, is not located at in striding, and is not located at the horizon bar span centre;
3. each host node place of transverse horizontal bar arranges a transverse horizontal bar, and every side extension is not less than 100mm;
4. scaffold floor
Adopt bamboo basketry sole, length and width is 1.0 * 1.2m, adopts carvel built, is layed on 4 vertical equity bars, and it is that the zinc-coated wire of 1.2mm is fixed on the vertical equity bar that diameter is adopted at four angles; Scaffold floor will completely spread;
5. wall-connecting piece
Adopt rigid connecting tube, formed by φ 48 short steel pipes, 40*5mm band steel; The 40*5mm band steel is embedded in floor reinforced concrete post and the side bar, and length is 350mm in the anchor people concrete, all establishes bearing tension for every layer; The length of wall-connecting piece is no more than 300mm;
Wall-connecting piece adopts flower to arrange and puts, and near the host node position, departs from host node and be not more than 300mm; Wall-connecting piece since end step first vertical equity bar place arrange, wall-connecting piece is level and perpendicular to the metope setting;
6. bridging
Per pass bridging width is 4 to stride, the inclination angle of brace and horizontal cross bar is between 45 °-60 °, adopt whole facade to arrange continuously, the brace spreading adopts to tie up to connect and connects, and adopt to turn and detain on the external part that is fixed on crossing with it vertical rod or transverse horizontal bar, turn and smash heart line-spacing host node distance less than 150mm; Brace has 4 fixed points that link to each other with vertical rod or horizon bar;
7. fastener is installed
1) connect leger to clasp, opening is inboard towards shelf, bolt upwards enters with rainwater-proof;
Root just should be put when 2) filling bolt and be controlled at 30～40N.M with torsional moment;
3) anti-electric lightning measure: 4 lightning rods are set altogether, and lightning rod adopts φ 12 galvanizing steels to make, and length is 1m, is arranged on four jiaos of scaffold upright rods of main building outrigger, and the leger of all smallest tier all is communicated with, and forms lightning-arrest network;
Down lead adopts φ 8 round steel, and vertical rod is connected with lightning protection system in the whole building building floor, and welding is adopted in the contact position;
The balcony of encorbelmenting for 3.6 meters; because the tie point of diagonal brace and horizontal rod is hung the side bar inboard; thereby the bar of encorbelmenting may exert an influence to the balcony of encorbelmenting after stressed; so take corresponding measure as follows: below the bar of encorbelmenting of every builder's jack, hang the side bar bottom position; the distance between tie rods of encorbelmenting according to builder's jack; the every bar below of encorbelmenting hangs the side bar bottom position a vertical vertical posts all is set, to strengthen the protective effect to builder's jack.
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| CN2012104105893A CN102888979A (en) | 2012-10-25 | 2012-10-25 | Joint processing and constructing method of overhanging scaffold at large cantilever balcony |
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| CN2012104105893A CN102888979A (en) | 2012-10-25 | 2012-10-25 | Joint processing and constructing method of overhanging scaffold at large cantilever balcony |
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| CN105220870A (en) * | 2015-10-16 | 2016-01-06 | 河北中建工程有限公司 | A kind of overhanging scaffold |
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| CN110259090A (en) * | 2019-06-24 | 2019-09-20 | 南通大学 | A kind of construction method of novel pull-up builder's jack |
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| CN103711198A (en) * | 2013-12-20 | 2014-04-09 | 湖北弘毅建设有限公司 | Upper-and-lower layer prefabricated balcony slab and supporting connecting structure between upper-and-lower layer prefabricated balcony slab and beam |
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| CN105220870A (en) * | 2015-10-16 | 2016-01-06 | 河北中建工程有限公司 | A kind of overhanging scaffold |
| CN106437172A (en) * | 2016-07-27 | 2017-02-22 | 中国能源建设集团安徽电力建设第工程有限公司 | Putting-up method of scaffold for building of booster station of wind power plant |
| CN106348217A (en) * | 2016-09-28 | 2017-01-25 | 苏州市汉诺威升降台有限公司 | Rain-proof and lightning-protection aerial work platform |
| CN110230397A (en) * | 2019-06-17 | 2019-09-13 | 陕西建工第三建设集团有限公司 | A kind of construction method of building space dislocation overhanging balcony |
| CN110230397B (en) * | 2019-06-17 | 2021-02-05 | 陕西建工第三建设集团有限公司 | Construction method of building space dislocation overhanging terrace |
| CN110259090A (en) * | 2019-06-24 | 2019-09-20 | 南通大学 | A kind of construction method of novel pull-up builder's jack |
| CN110259090B (en) * | 2019-06-24 | 2021-07-23 | 南通大学 | Construction method of novel pull-up type overhanging scaffold |
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