CN111561062A - Post-pouring belt construction process of three-spliced bottom die - Google Patents
Post-pouring belt construction process of three-spliced bottom die Download PDFInfo
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- CN111561062A CN111561062A CN202010494293.9A CN202010494293A CN111561062A CN 111561062 A CN111561062 A CN 111561062A CN 202010494293 A CN202010494293 A CN 202010494293A CN 111561062 A CN111561062 A CN 111561062A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/246—Safety or protective measures preventing damage to building parts or finishing work during construction specially adapted for curing concrete in situ, e.g. by covering it with protective sheets
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a post-pouring belt construction process of a three-spliced bottom die. The first step is as follows: the beam slab structure diagram is used for completing the deepening design of the construction CAD of the template support construction drawing; marking the post-cast strip vertical rod position; the second step is that: firstly, erecting formworks and supports of a post-cast strip area and areas on two sides of the post-cast strip, and then paving beam bottom secondary keels, a three-piece type post-cast strip bottom formwork and bottom formworks of areas on two sides of the post-cast strip; then binding of a beam plate steel reinforcement framework, installation of double-layer steel wire meshes on two sides of the post-cast strip, installation and reinforcement of side templates such as reserved holes and the like, and concrete pouring and maintenance of beam plates on two sides of the post-cast strip are sequentially completed; the third step: removing the template and the bracket of the cast-in-place concrete structure; cleaning steel wire meshes on two sides of the post-cast strip, chiseling, cleaning and loosening the intermediate block template on the surface of the pre-cast concrete, and discharging garbage; trimming the template of the post-cast strip part; the fourth step: wetting a rough surface of concrete, reducing mortar slurry, pouring concrete doped with an expanding agent and maintaining; and (5) removing the template and the bracket.
Description
Technical Field
The invention relates to the field of buildings, in particular to a post-cast strip construction process of a three-spliced bottom die.
Background
With the progress of human society, the height of buildings is higher and higher, and the volume of buildings is higher and higher, so that a post-cast strip after settlement and a post-cast strip after temperature contraction widely exist in a reinforced concrete cast-in-place structure.
In order to ensure the quality of the construction of the reinforced concrete structure, the national housing and urban and rural construction department effectively standardizes the related construction by issuing the related specifications. For example, in the specification GB50666-2011 of concrete structure engineering construction, the template and the bracket of the 4.4.16 post-cast strip are required to be arranged independently. "8.3.10 the construction joint or post-cast strip should be cast with the following specifications: 1. the bonding surface is a rough surface; 2. watering and moistening the joint surface without accumulating water; 5. the strength grade and the performance of the post-cast strip concrete meet the design requirements; when the design is not required, the strength grade of the post-cast strip concrete is preferably improved by one grade compared with the concrete on two sides, and the post-cast strip concrete is preferably poured by adopting the technical measures of reducing shrinkage. "8.3.11 ultra-long structural concrete placement should meet the following regulations: 2. when the post-cast strip is reserved, the sealing time of the post-cast strip is not less than 14 d; 4. the closing time of the post-cast strip should be confirmed by the design unit. The closing time of the post-settlement casting strip is specified in the relevant documents and is generally performed after the capping of the main structure is completed.
In the construction of the reinforced concrete structure, the common reinforced concrete structure of the areas at two sides of the post-cast strip is completed according to a conventional construction method, and the concrete construction of the area of the post-cast strip and the long-time post-cast strip sealing waiting period are also provided. Due to the fact that adjacent concrete is constructed in different times, the joint faces are often uneven in height and poor in compactness and potential safety hazards are caused due to construction control differences. In order to prevent quality and potential safety hazards such as uneven joint surfaces, poor compactness and the like generated at joints of reinforced concrete constructed in different times; meanwhile, a long waiting period for closing the post-cast strip area exists, and the template and the bracket occupy for a long time, so that the engineering cost rises linearly. In the construction process, templates and supports in post-cast strip areas are removed illegally, and then the supports are jacked back to affect the engineering quality.
Disclosure of Invention
In order to solve the problems, the invention discloses a post-pouring belt construction process of a three-spliced bottom die.
The technical scheme of the invention is as follows: a post-pouring belt construction process of a three-spliced bottom die comprises the following steps:
s1: a reinforced concrete beam slab structure diagram, a template support construction diagram deeply designed by utilizing a building CAD;
s2: marking the supporting range and the upright position of the post-cast strip according to a deepening design drawing;
s3: firstly, carrying out partial formwork support I of the post-cast strip area according to the position of the upright rod of the post-cast strip;
s4: erecting a template bracket II of a cast-in-place structure of the cast-in-place concrete beam column according to a conventional method;
s5: finishing the template supports in the post-cast strip area and the areas on two sides of the post-cast strip, and installing adjustable jacking wood square secondary keels to lay the independent support main keels in the post-cast strip area and the support main keels in the areas on two sides of the post-cast strip;
s6: paving a post-cast strip area batten secondary keel of the post-cast strip area on the post-cast strip area independent support main keel;
s7: respectively paving side templates of the three-spliced template and middle templates of the three-spliced template on the secondary batten of the post-cast strip area;
s8: paving batten secondary keels of beam plates on two sides of the post-cast strip and formworks on two sides of the post-cast strip on the main keels of the area supports on two sides outside the post-cast strip area;
s9: binding the beam plate steel reinforcement framework on site according to a conventional method;
s10: after the reinforcement cage is bound, installing double-layer steel wire mesh sheets on two sides of the post-cast strip, and marking a concrete pouring upper plane control line;
s11: completing the installation and reinforcement of side templates such as reserved holes according to conventional engineering;
s12: pouring concrete of beam plates on two sides of the post-cast strip according to a conventional method;
s13: curing the concrete of the beam plates at the two sides of the post-cast strip by a conventional method;
s14: removing the templates on two sides of the post-cast strip, the batten secondary keels, the main keels of the supports in the areas on two sides of the post-cast strip, the batten secondary keels in the areas of the post-cast strip, the template supports II and the adjustable jacking batten secondary keels;
s15: cleaning steel wire meshes arranged on two sides of the post-cast strip, chiseling and cleaning the surface of the pre-cast concrete to form a rough surface of the pre-cast concrete and a side template of the three-spliced template, and discharging and cleaning garbage;
s16: trimming the side template of the three-spliced template and the middle template of the three-spliced template;
s17: wetting the rough surface of the cast-in-place concrete by using water, and then carrying out slurry receiving treatment by using stone-reducing mortar;
s18: pouring the concrete doped with the expanding agent of the post-cast strip according to a conventional method;
s19: curing the concrete doped with the expanding agent of the post-cast strip by a conventional method;
s20: and removing side templates of the three-spliced template of the post-cast strip part, a middle template of the three-spliced template, the main keel of the independent support of the post-cast strip area, the square secondary keel of the wood of the post-cast strip area and the template support I1, and supporting the square secondary keel of the wood in an adjustable manner.
Further, the formwork support I comprises erection of a wooden scaffold board, a post-cast strip area independent support upright rod, a post-cast strip area independent support first-step frame, a floor sweeping rod and a post-cast strip area independent support second-step frame.
Further, the formwork support II comprises erection of a vertical rod steel pipe I, a horizontal rod and a floor sweeping rod.
The invention has the advantages that:the construction process of the post-pouring belt of the three-spliced bottom die is realizedThe method comprises the following steps that (1) a template and an independent formwork support of a bottom die of a post-cast strip area are constructed by a conventional scheme to complete beam slab structures on two sides of the post-cast strip; still communicate the independent formwork support in post-cast strip region and the whole support in post-cast strip both sides through the contact steel pipe, can realize the independence of the template in post-cast strip region and support like this, also can guarantee the bulk stiffness.
Drawings
FIG. 1 is a schematic view of a first branch portion of an independent bracket for a post-cast strip area according to the present invention;
FIG. 2 is a schematic diagram illustrating the completion of the erection of the brackets at both sides of the post-cast strip according to the present invention;
FIG. 3 is a schematic diagram of the completion of the laying of the post-cast strip area triple-split formwork of the present invention;
FIG. 4 is a schematic diagram of the completion of the laying of the formworks of the areas on both sides of the post-cast strip;
FIG. 5 is a schematic view of the completion of the reinforcement cage binding of the present invention;
FIG. 6 is a schematic view of the completion of concrete pouring in areas on both sides of the post-cast strip according to the present invention;
FIG. 7 is a schematic illustration of the post-cast strip concrete waiting for placement of the present invention;
FIG. 8 is a schematic view of the completion of the concrete placement in the post-cast strip area of the present invention;
wherein: 1. the concrete floor slab comprises a wood scaffold board, 2 parts of a post-cast strip area independent support vertical rod, 3 parts of a post-cast strip area independent support first step frame, 4 parts of a sweeping rod, 5 parts of a post-cast strip area independent support second step frame, 6 parts of vertical rod steel pipes I, 7 parts of a horizontal rod, 8 parts of a sweeping rod, 9 parts of an adjustable jacking wood square secondary keel, 10 parts of a post-cast strip area independent support main keel, 11 parts of a post-cast strip two-side area support main keel, 12-1 parts of a side template of a three-spliced template, 12-2 parts of a middle template of the three-spliced template, 13 parts of a post-cast strip area wood square secondary keel, 14 parts of a wood square secondary keel, 15 parts of a post-cast strip two-side template, 16 parts of a steel bar framework, 17 parts of a concrete upper plane, 18 parts of steel wire meshes installed on two sides of the post-cast strip, 19 parts of a pre-cast concrete rough surface, 20 parts of concrete, 21 parts of concrete doped with an.
Detailed Description
For the purpose of enhancing an understanding of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.
As shown in fig. 1-8, the invention relates to a post-cast strip construction process of a three-spliced bottom die, which comprises the steps of firstly lapping partial brackets of a post-cast strip area, then lapping the brackets outside the post-cast strip area, and then finishing the partial brackets of the post-cast strip area; and finally, connecting the brackets of the two areas through a connecting pipe. And laying the three-spliced bottom die of the post-cast strip area firstly, and laying the bottom plates of the areas on two sides of the post-cast strip later. Finishing beam slab reinforcement, multi-time concrete pouring joint position installation double-layer steel wire meshes, concrete in the areas on two sides of the poured post-cast strip, maintenance, and template and support in the areas on two sides of the poured post-cast strip in sequence. Pick in proper order and chisel earlier watering concrete and connect the raft face, not hard up the centre of three pin-connected blocks one, clearance rubbish, resume the centre of three pin-connected blocks one, the rough surface of concrete is moist, connect thick liquid, pour concrete and the concrete maintenance that contains the expanding agent again, at last the form removal specifically includes following steps:
s1: a reinforced concrete beam slab structure diagram, a template support construction diagram deeply designed by utilizing a building CAD;
s2: marking the supporting range and the upright position of the post-cast strip according to a deepening design drawing;
s3: firstly, carrying out partial formwork support I of the post-cast strip area according to the position of the upright rod of the post-cast strip;
s4: erecting a template bracket II of a cast-in-place structure of the cast-in-place concrete beam column according to a conventional method;
s5: finishing the formwork supports in the post-cast strip area and the areas on two sides of the post-cast strip, installing adjustable jacking batten secondary keels 9, and paving independent support main keels 10 in the post-cast strip area and support main keels 11 in the areas on two sides of the post-cast strip;
s6: paving a post-cast strip area wood square secondary keel 13 of the post-cast strip area on the post-cast strip area independent support main keel;
s7: respectively paving a side template 12-1 of the three-spliced template and a middle template 12-2 of the three-spliced template on the batten secondary keel of the post-cast strip area;
s8: paving batten secondary keels 14 of beam plates on two sides of the post-cast strip and formworks 15 on two sides of the post-cast strip on the main keels 11 of the area supports on two sides outside the post-cast strip area;
s9: binding the beam plate steel reinforcement framework 16 on site according to a conventional method;
s10: after the reinforcement cage 16 is bound, installing double-layer steel wire mesh sheets 18 at two sides of the post-cast strip, and marking a concrete pouring upper plane control line 17;
s11: completing the installation and reinforcement of side templates such as reserved holes according to conventional engineering;
s12: pouring the concrete 20 of the beam plates at the two sides of the post-cast strip by a conventional method;
s13: curing the concrete 20 of the post-cast strip two side beam plates according to a conventional method;
s14: removing the templates 15 on two sides of the post-cast strip, the batten secondary keels 14, the support main keels 11 in the areas on two sides of the post-cast strip, the batten secondary keels 13 in the areas of the post-cast strip, the template supports II and the adjustable jacking batten secondary keels 9;
s15: cleaning steel wire meshes 18 arranged at two sides of the post-cast strip, chiseling and cleaning the surface of the pre-cast concrete to form a rough surface 19 of the pre-cast concrete and a side template 12-1 of the three-spliced template, and discharging and cleaning garbage;
s16: trimming the side template 12-1 of the three-spliced template and the middle template 12-2 of the three-spliced template;
s17: wetting the rough surface 19 of the cast-in-place concrete by using water, and then carrying out slurry receiving treatment by using stone-reducing mortar;
s18: pouring the expansive agent-doped concrete 21 of the post-cast strip according to a conventional method;
s19: curing the post-cast strip concrete 21 doped with the expanding agent according to a conventional method;
s20: the side template 12-1 of the three-spliced template of the post-cast strip part, the middle template 12-2 of the three-spliced template, the main keel 10 of the independent bracket of the post-cast strip area, the wood square secondary keel 13 of the post-cast strip area, the template bracket I1 and the adjustable jacking wood square secondary keel 9 are removed.The construction process of the post-pouring belt of the three-spliced bottom die is realizedThe method comprises the following steps that (1) a template and an independent formwork support of a bottom die of a post-cast strip area are constructed by a conventional scheme to complete beam slab structures on two sides of the post-cast strip; still communicate the independent formwork support in post-cast strip region and the whole support in post-cast strip both sides through the contact steel pipe, can realize the independence of the template in post-cast strip region and support like this, also can guarantee the bulk stiffness.
The formwork support I comprises erection of a wooden scaffold board 1, a post-cast strip area independent support upright rod 2, a post-cast strip area independent support first-step frame 3, a sweeping rod 4 and a post-cast strip area independent support second-step frame 5.
The formwork support II comprises the erection of vertical rod steel pipes I6, a horizontal rod 7 and a floor sweeping rod 8.
Claims (3)
1. A post-cast strip construction process of a three-spliced bottom die is characterized by comprising the following steps:
s1: a reinforced concrete beam slab structure diagram, a template support construction diagram deeply designed by utilizing a building CAD;
s2: marking the supporting range and the upright position of the post-cast strip according to a deepening design drawing;
s3: firstly, carrying out partial formwork support I of the post-cast strip area according to the position of the upright rod of the post-cast strip;
s4: erecting a template bracket II of a cast-in-place structure of the cast-in-place concrete beam column according to a conventional method;
s5: finishing the formwork support of the post-cast strip area and the areas at two sides of the post-cast strip, installing an adjustable jacking batten secondary keel (9), and paving a main keel (10) of an independent support of the post-cast strip area and main keels (11) of supports of the areas at two sides of the post-cast strip;
s6: a post-cast strip area batten secondary keel (13) of the post-cast strip area is laid on the post-cast strip area independent support main keel;
s7: side templates (12-1) of the three-spliced template and a middle template (12-2) of the three-spliced template are respectively paved on the batten secondary keel of the post-cast strip area;
s8: paving batten secondary keels (14) of beam plates on two sides of the post-cast strip and formworks (15) on two sides of the post-cast strip on the main keels (11) of the brackets in the areas on the two sides outside the post-cast strip area;
s9: binding a beam plate steel reinforcement framework (16) on site according to a conventional method;
s10: after the reinforcement cage (16) is bound, double-layer steel wire mesh sheets (18) are arranged on two sides of the post-cast strip, and a concrete pouring upper plane control line (17) is marked;
s11: completing the installation and reinforcement of side templates such as reserved holes according to conventional engineering;
s12: pouring concrete (20) of beam plates at two sides of the post-cast strip by a conventional method;
s13: curing the concrete (20) of the beam plates at the two sides of the post-cast strip by a conventional method;
s14: removing the templates (15) on two sides of the post-cast strip, the batten secondary keels (14), the support main keels (11) in the areas on two sides of the post-cast strip, the batten secondary keels (13) in the areas of the post-cast strip, the template supports II and the adjustable jacking batten secondary keels (9);
s15: cleaning steel wire meshes (18) arranged at two sides of the post-cast strip, chiseling and cleaning the surface of the pre-cast concrete to form a rough surface (19) of the pre-cast concrete and a side template (12-1) of the three-spliced template, and discharging and cleaning garbage;
s16: trimming the side template (12-1) of the three-spliced template and the middle template (12-2) of the three-spliced template;
s17: wetting the rough surface (19) of the cast-in-place concrete by water, and then carrying out slurry receiving treatment by using stone-reducing mortar;
s18: pouring the concrete (21) mixed with the expanding agent of the post-cast strip according to a conventional method;
s19: curing the post-cast strip concrete (21) doped with the expanding agent according to a conventional method;
s20: the side formwork (12-1) of the three-spliced formwork of the post-cast strip part, the middle formwork (12-2) of the three-spliced formwork, the main keel (10) of the independent support of the post-cast strip area, the wood square secondary keel (13) of the post-cast strip area, the formwork support I and the adjustable jacking wood square secondary keel (9) are removed.
2. The post-cast strip construction process of the three-spliced bottom die according to claim 1, characterized in that: the formwork support I comprises a wooden scaffold board (1), a post-cast strip area independent support upright rod (2), a post-cast strip area independent support one-step frame (3), a floor sweeping rod (4) and a post-cast strip area independent support two-step frame (5).
3. The post-cast strip construction process of the three-spliced bottom die according to claim 1, characterized in that: the template bracket II comprises erection of a vertical rod steel pipe I (6), a horizontal rod (7) and a floor sweeping rod (8).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019110282736 | 2019-10-28 | ||
| CN201911028273 | 2019-10-28 |
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| CN111561062A true CN111561062A (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010494293.9A Pending CN111561062A (en) | 2019-10-28 | 2020-06-03 | Post-pouring belt construction process of three-spliced bottom die |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002206290A (en) * | 2001-01-09 | 2002-07-26 | Biruken Kk | Mutual surface adhesion method between different sealing compounds |
| CN101871262A (en) * | 2010-06-25 | 2010-10-27 | 中天建设集团有限公司天津分公司 | Method for constructing beam plate supporting system having post-cast strip |
| CN204645613U (en) * | 2015-05-12 | 2015-09-16 | 中建三局第二建设工程有限责任公司 | A kind of alter-pouring strips mould plate with tipping platform |
| CN204983646U (en) * | 2015-08-05 | 2016-01-20 | 中建三局第二建设工程有限责任公司 | Device is assembled to reinforced concrete structure post -cast strip template |
| CN205688792U (en) * | 2016-06-26 | 2016-11-16 | 青岛一建集团有限公司 | Beam slab post-cast strip cleanout formula template construction structure |
| CN106284982A (en) * | 2016-08-10 | 2017-01-04 | 北京首钢建设集团有限公司 | A kind of reinforced concrete floor alter-pouring strips mould plate method for supporting |
| CN205935650U (en) * | 2016-08-19 | 2017-02-08 | 江苏建科建设监理有限公司 | Template is supported to post -cast strip |
| CN108979132A (en) * | 2018-08-16 | 2018-12-11 | 中建三局第三建设工程有限责任公司 | Floor post-cast strip template support system |
| CN209163516U (en) * | 2018-09-30 | 2019-07-26 | 中国华西企业股份有限公司 | A kind of post-cast strip tool support device |
-
2020
- 2020-06-03 CN CN202010494293.9A patent/CN111561062A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002206290A (en) * | 2001-01-09 | 2002-07-26 | Biruken Kk | Mutual surface adhesion method between different sealing compounds |
| CN101871262A (en) * | 2010-06-25 | 2010-10-27 | 中天建设集团有限公司天津分公司 | Method for constructing beam plate supporting system having post-cast strip |
| CN204645613U (en) * | 2015-05-12 | 2015-09-16 | 中建三局第二建设工程有限责任公司 | A kind of alter-pouring strips mould plate with tipping platform |
| CN204983646U (en) * | 2015-08-05 | 2016-01-20 | 中建三局第二建设工程有限责任公司 | Device is assembled to reinforced concrete structure post -cast strip template |
| CN205688792U (en) * | 2016-06-26 | 2016-11-16 | 青岛一建集团有限公司 | Beam slab post-cast strip cleanout formula template construction structure |
| CN106284982A (en) * | 2016-08-10 | 2017-01-04 | 北京首钢建设集团有限公司 | A kind of reinforced concrete floor alter-pouring strips mould plate method for supporting |
| CN205935650U (en) * | 2016-08-19 | 2017-02-08 | 江苏建科建设监理有限公司 | Template is supported to post -cast strip |
| CN108979132A (en) * | 2018-08-16 | 2018-12-11 | 中建三局第三建设工程有限责任公司 | Floor post-cast strip template support system |
| CN209163516U (en) * | 2018-09-30 | 2019-07-26 | 中国华西企业股份有限公司 | A kind of post-cast strip tool support device |
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Application publication date: 20200821 |
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