CN103835373B - The construction method of a kind of annular cap built-in fitting and annular concrete cap - Google Patents
The construction method of a kind of annular cap built-in fitting and annular concrete cap Download PDFInfo
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- CN103835373B CN103835373B CN201410112893.9A CN201410112893A CN103835373B CN 103835373 B CN103835373 B CN 103835373B CN 201410112893 A CN201410112893 A CN 201410112893A CN 103835373 B CN103835373 B CN 103835373B
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Abstract
The invention discloses a kind of annular cap built-in fitting, comprise pre-embedded steel slab and dowel, pre-embedded steel slab is provided with vibrate hole and air-vent, and vibrate hole and air-vent are evenly arranged, and this hole of vibrating polishes with material roundlet divided edge of steel plate plug welding polishing with uniform thickness after casting and compacting of concrete; Under rectangle, built-in fitting is imbedded at cap soffit and across is symmetrical arranged.The invention also discloses a kind of construction method of annular concrete cap, comprise positioning control measure and fixation.By pre-aligned, part reinforcing bar and embedded part synchronous construction ensure dowel accurate positioning, by each stage multiple bearing of overall process, check and check and accept, and the measure such as air-vent be set in embedded part plate face ensure construction quality; After built-in fitting completion, embedded part is fixed, and physical dimension is all in the deviation range that job specfication allows, and every testing result all meets the requirements.
Description
Technical field
The present invention relates to building unit and construction field thereof, be specifically related to the construction method of a kind of annular cap built-in fitting and annular concrete cap.
Background technology
The gallery chair supporting column of certain engineering is special-shaped large circle concrete column, because equipment is installed and the special consideration of structural safety, design and add annular cap at annulus capital end, and cap top and bottom is all furnished with a large amount of large-scale embedded parts.The required precision of annular cap built-in fitting is high, and form of structure is rare, and quality assurance difficulty is large.Main manifestations is: operation is intersected, and is difficult to arrange; Stirrup and main muscle and embedded part are installed mutual difficulty of intersecting and are separated; The dowel of embedded part is difficult to location and installs.
Present built-in fitting construction technology can meet general construction requirement, but for the built-in fitting of this engineering annular cap, embedded part dowel is more, cap reinforcing bar is more, actual being difficult to when carrying out colligation controls rebar spacing and size, existing built-in fitting construction technology is difficult to ensure that dowel passes through cap reinforcing bar and fixes, and embedded part finally can be caused to install.
Summary of the invention
For problem above, the invention discloses a kind of annular cap built-in fitting, comprise pre-embedded steel slab and dowel, embedded part embedding is in cap upper surface and soffit, pre-embedded steel slab is rectangular steel plates and curved plate, and dowel region is identical with pre-embedded steel slab shape, and pre-embedded steel slab and dowel adopt T-shaped welding;
On the arc being imbedded at cap upper surface, on built-in fitting and rectangle, the pre-embedded steel slab of built-in fitting is provided with vibrate hole and air-vent, vibrate hole and air-vent is evenly arranged, and this hole of vibrating polishes with material roundlet divided edge of steel plate plug welding polishing with uniform thickness after casting and compacting of concrete; Under rectangle, built-in fitting is imbedded at cap soffit and across is symmetrical arranged.
The invention also discloses a kind of construction method of annular concrete cap, comprise positioning control measure and fixation:
One, positioning control measure
1. model sheetinstallat completes Hou Ying organization steel structural units and checks Template Location, size, then carries out the installation of built-in fitting under cap soffit rectangle and fixing;
2. carry out steel bar meter: should setting-out at the scene before the processing of cap steel hoop, according to the processing of lofting ruler little progress row, the processing of stirrup and cap steel hoop must carry out an acceptance inspection, and work sheet should through examination & verification;
3. before reinforcement installation, bed die is released the location of built-in fitting and arc built-in fitting dowel on the location of cap steel hoop and cap upper surface rectangle, built-in fitting location is carried out with main muscle simultaneously, so that subsequent construction, setting-out work should carry out an acceptance inspection;
4. reinforcement installation is carried out: steel pipe can be set at the dowel place of template face built-in fitting in installation process or bar planting is not less than the reinforcing bar that diameter is 32mm, so that follow-up embedded part is installed, the anchor bar of built-in fitting must be placed on the inner side of the main muscle of outer row, after reinforcement installation completes, carries out an acceptance inspection;
5. built-in fitting is installed: after reinforcement installation completes, extracts steel pipe or the reinforcing bar of location out, embedded part is in place, after whole installation, then carries out an acceptance inspection.
Two, fixation
1. embedded part requirement is buried underground smooth;
2. when dowel diameter is not more than 20mm, pressure submerged arc welding should be adopted, when dowel diameter is greater than 20mm, perforation plug welding should be adopted to polish;
3. during pouring concrete, pre-embedded steel slab place and near should strengthen vibrating, guarantee that concrete completely waters under pre-embedded steel slab, closely knit;
4. bottom cap, embedded part is symmetrical arranged with circle ring center, should arrange two-way concrete slab net bottom cap;
5. within 1-2 hour before watering concrete, also to carry out once scene to check, revise in time and constant offset built-in fitting.
Beneficial effect: by each stage multiple bearing of overall process, check and check and accept, and the measure such as air-vent be set in embedded part plate face ensure construction quality; After built-in fitting completion, embedded part is fixed, and physical dimension is all in the deviation range that job specfication allows, and every detection all meets the requirements.
Accompanying drawing explanation
Fig. 1 is cap upper surface built-in fitting arrangement diagram;
Fig. 2 is cap soffit built-in fitting arrangement diagram;
Built-in fitting enlarged drawing on Fig. 3 arc;
Built-in fitting enlarged drawing on Fig. 4 rectangle;
Built-in fitting enlarged drawing under Fig. 5 rectangle;
Built-in fitting A-A sectional drawing under Fig. 6 rectangle;
In figure, 1 cap; Built-in fitting on 2 arcs; Built-in fitting on 3 rectangles; Built-in fitting under 4 rectangles; 5 pre-embedded steel slabs; 6 dowels; 7 vibrate hole; 8 air-vents; 9 steel sleeves.
Detailed description of the invention
Below in conjunction with accompanying drawing 1-6, the specific embodiment of the present invention is described.
The annular cap built-in fitting of one of the present invention, comprise pre-embedded steel slab and dowel, embedded part embedding is in cap upper surface and soffit, and pre-embedded steel slab is rectangular steel plates and curved plate, dowel region is identical with pre-embedded steel slab shape, and pre-embedded steel slab and dowel adopt T-shaped welding; On the arc being imbedded at cap upper surface, built-in fitting is pressed close to interior annulus and is symmetrical arranged, on rectangle, built-in fitting is arranged along X-axis, Y-axis and Z axis, and be positioned on the extended line of beam, pre-embedded steel slab is provided with vibrate hole and air-vent, vibrate hole and air-vent is evenly arranged, the pore radius that vibrates is 80mm, and this hole of vibrating polishes with material roundlet divided edge of steel plate plug welding polishing with uniform thickness after casting and compacting of concrete; Under rectangle, built-in fitting is imbedded at cap soffit and is symmetrical arranged along X-axis and Y-axis across.
A construction method for annular concrete cap, comprises positioning control measure and fixation:
(1) positioning control measure
1. model sheetinstallat completes Hou Ying organization steel structural units and checks (check and accept point one) to Template Location, size, and then carry out the installation of cap soffit rectangle built-in fitting and fixing, embedded part pre-embedded steel slab thickness is 35mm.Cap top mark height is-1.55m, and end absolute altitude is-2.60m.
2. carry out steel bar meter, wherein the working height of stirrup is 930-940mm; Should setting-out at the scene before the processing of cap steel hoop, according to the processing of lofting ruler little progress row, the processing of stirrup and cap steel hoop must carry out an acceptance inspection (checking and accepting point two), and work sheet should through examination & verification;
3. before reinforcement installation, bed die is released the location of built-in fitting dowel on built-in fitting and arc on the location of cap steel hoop and cap upper surface rectangle, built-in fitting location is carried out with main muscle simultaneously, so that subsequent construction, setting-out work should carry out an acceptance inspection (checking and accepting point three);
4. reinforcement installation is carried out, can arrange steel pipe at the dowel place of plate face embedded part in installation process or bar planting is not less than the reinforcing bar that diameter is 32mm, so that follow-up embedded part is installed, the anchor bar of built-in fitting must be placed on the inner side of the main muscle of outer row, after reinforcement installation completes, carry out an acceptance inspection (checking and accepting point four);
5., after installation embedded part reinforcement installation completes, extract steel pipe or the reinforcing bar of location out, embedded part is in place, after whole installation, then carry out an acceptance inspection (checking and accepting point five);
(2) fixation
1. embedded part requires to bury underground smooth, and at the bottom of the flat cap face, embedded part face of cap plane embedded part or cap, controlling embedded part plan-position allowable error is ± 10mm.Whole board plane degree <0.2mm.Build rear whole board plane degree <2mm.
2. when dowel diameter is not more than 20mm, pressure submerged arc welding should be adopted, when dowel diameter is greater than 20mm, perforation plug welding should be adopted to polish;
3. during pouring concrete, in embedded part plate and near should strengthen vibrating, under guaranteeing embedded part plate, concrete is full of closely knit;
4. steel sleeve is as adopted straight-seam pipes, and vertical masonry joint should be put and become an angle of 90 degrees place with Z axis;
5. at the bottom of cap plate, embedded part is symmetricly set in circle ring center, should arrange two-way concrete slab net bottom it;
6. within 1-2 hour before watering concrete, also to carry out once scene to check, revise constant offset built-in fitting in time.
(3) other problem that should be noted that
1. for ensureing the reliability that built-in fitting is connected with agent structure, the agent structure concrete strength of connecting portion should lower than C20.
2. for preventing built-in fitting from producing displacement in casting and compacting of concrete process, embedded part and reinforcing bar or template should be connected and fixed; In casting and compacting of concrete process, send special messenger's tracing observation; If there is deviation, should correct in time.
3. the content of general digestion drawing is wanted at Construction in Preparatory Stage, on-the-spot practice of construction situation, finds out pre-buried difficult point keypoint part, in telling somebody what one's real intentions are, carries out special project explanation, and convene workman to hold special focus to tell somebody what one's real intentions are meeting, operating personnel be allowed to grasp hints on operation and technical requirements.
4. the real size of site operation section formwork often has deviation with design working drawing, and institute's heart will be checked, and especially facade, plane outline change more place, corner, outstanding position etc., actual, measured dimension are labeled on construction drawing.Burying underground according to on-the-spot size lattice, as exceeded specification allowable variation, then related personnel must be organized in time to carry out amendment scheme discussion and determine.
5. plate face embedded part Primary Location and main muscle carry out simultaneously, and embedded part at the bottom of plate can be fixed after bed die completes.The anchor bar of built-in fitting must be placed on the inner side of the main muscle of outer row.
6. because civil engineering installs side form or easily cause off normal when wearing muscle and other construction interference, check so scene within 1-2 hour before watering concrete, also will be carried out once, revise constant offset embedded part in time.
7. in 2 days, form removal position built-in fitting should be found out after form removal and by removing surface, with the cleaning of wooden broom, lower step operation can be carried out by putting after examination.
Claims (2)
1. an annular cap built-in fitting, comprises pre-embedded steel slab and dowel, it is characterized in that,
Embedded part embedding is in cap (1) upper surface and soffit, and pre-embedded steel slab (5) is rectangular steel plates and curved plate, and dowel region is identical with pre-embedded steel slab shape, and pre-embedded steel slab (5) and dowel (6) adopt T-shaped welding;
On the arc being imbedded at cap (1) upper surface, on built-in fitting (2) and rectangle, the pre-embedded steel slab (5) of built-in fitting (3) is provided with hole of vibrating (7) and air-vent (8), vibrate hole and air-vent is evenly arranged, and this hole of vibrating polishes with material roundlet divided edge of steel plate plug welding polishing with uniform thickness after casting and compacting of concrete;
Under rectangle, built-in fitting (4) is imbedded at cap (1) soffit and across is symmetrical arranged.
2. a construction method for annular concrete cap, is characterized in that, comprises positioning control measure and fixation:
One, positioning control measure
1. model sheetinstallat complete after organization steel structural units Template Location, size are checked, then carry out the installation of built-in fitting (4) under cap soffit rectangle and fixing;
2. carry out steel bar meter: setting-out at the scene before the processing of cap steel hoop, according to the processing of lofting ruler little progress row, the processing of stirrup and cap steel hoop must carry out an acceptance inspection, and work sheet also will through examination & verification;
3. before reinforcement installation, bed die is released the location of built-in fitting (2) dowel on built-in fitting (3) and arc on the location of cap steel hoop and cap upper surface rectangle, built-in fitting location is carried out with main muscle simultaneously, so that subsequent construction, setting-out work will carry out an acceptance inspection;
4. reinforcement installation is carried out: in installation process, steel pipe is set at the dowel place of template face built-in fitting or bar planting is not less than the reinforcing bar that diameter is 32mm, so that follow-up installation of embedded parts, the anchor bar of built-in fitting must be placed on the inner side of the main muscle of outer row, after reinforcement installation completes, carries out an acceptance inspection;
5. built-in fitting is installed: after reinforcement installation completes, extracts steel pipe or the reinforcing bar of location out, embedded part is in place, after whole installation, then carries out an acceptance inspection;
Two, fixation
1. embedded part is required to bury underground smooth;
2. when dowel diameter is not more than 20mm, adopt pressure submerged arc welding, when dowel diameter is greater than 20mm, adopt perforation plug welding to polish;
3. during pouring concrete, pre-embedded steel slab place and near reinforcement vibrate, guarantee that concrete completely waters under pre-embedded steel slab, closely knit;
4. bottom cap, embedded part is symmetrical arranged with circle ring center, should arrange two-way concrete slab net bottom cap;
5. within 1-2 hour before watering concrete, also to carry out once scene to check, revise in time and constant offset built-in fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112893.9A CN103835373B (en) | 2014-03-25 | 2014-03-25 | The construction method of a kind of annular cap built-in fitting and annular concrete cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112893.9A CN103835373B (en) | 2014-03-25 | 2014-03-25 | The construction method of a kind of annular cap built-in fitting and annular concrete cap |
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| CN103835373A CN103835373A (en) | 2014-06-04 |
| CN103835373B true CN103835373B (en) | 2016-03-09 |
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| CN201410112893.9A Expired - Fee Related CN103835373B (en) | 2014-03-25 | 2014-03-25 | The construction method of a kind of annular cap built-in fitting and annular concrete cap |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772555B (en) * | 2015-04-29 | 2019-09-20 | 葛斌斌 | The submerged arc welding processing method of curtain wall embedded part |
| CN105178354B (en) * | 2015-09-06 | 2017-10-13 | 上海建工二建集团有限公司 | One farming word beam column cap and flatslab construction system |
| CN107143041A (en) * | 2017-06-15 | 2017-09-08 | 中国二十二冶集团有限公司 | The horizontal built-in fitting construction method of concrete bracket post |
| CN110777840A (en) * | 2019-10-26 | 2020-02-11 | 上海二十冶建设有限公司 | Construction method of equipment foundation embedded part at dense position of reinforcing steel bar |
| CN113802697A (en) * | 2021-08-31 | 2021-12-17 | 中冶(上海)钢结构科技有限公司 | Machining and embedding method for steel structure embedded part in dense steel bar area |
| CN114753507A (en) * | 2022-01-25 | 2022-07-15 | 中国一冶集团有限公司 | Non-punching bar planting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1070449A (en) * | 1991-09-08 | 1993-03-31 | 江苏省煤矿研究所 | Mining prop shoe made from anti-electrostatic fire retardant compound material |
| CN201746790U (en) * | 2010-08-13 | 2011-02-16 | 淄博北辰金属材料科技发展有限公司 | Safety fence for railway track |
| JP2011219954A (en) * | 2010-04-07 | 2011-11-04 | Sumitomo Kinzoku Kozan Siporex Kk | Anchor plate and light-weight foamed concrete panel and construction method thereof |
| CN202390753U (en) * | 2012-01-11 | 2012-08-22 | 中建七局第二建筑有限公司 | Fixing structure of bridge table and post cap embedded part |
| CN103088915A (en) * | 2012-08-16 | 2013-05-08 | 杨众 | Cast-in-site column with column cap and construction method |
-
2014
- 2014-03-25 CN CN201410112893.9A patent/CN103835373B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1070449A (en) * | 1991-09-08 | 1993-03-31 | 江苏省煤矿研究所 | Mining prop shoe made from anti-electrostatic fire retardant compound material |
| JP2011219954A (en) * | 2010-04-07 | 2011-11-04 | Sumitomo Kinzoku Kozan Siporex Kk | Anchor plate and light-weight foamed concrete panel and construction method thereof |
| CN201746790U (en) * | 2010-08-13 | 2011-02-16 | 淄博北辰金属材料科技发展有限公司 | Safety fence for railway track |
| CN202390753U (en) * | 2012-01-11 | 2012-08-22 | 中建七局第二建筑有限公司 | Fixing structure of bridge table and post cap embedded part |
| CN103088915A (en) * | 2012-08-16 | 2013-05-08 | 杨众 | Cast-in-site column with column cap and construction method |
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| CN103835373A (en) | 2014-06-04 |
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Granted publication date: 20160309 Termination date: 20170325 |