CN114961257A - Early-dismantling construction method for disc buckle of public building basement - Google Patents
Early-dismantling construction method for disc buckle of public building basement Download PDFInfo
- Publication number
- CN114961257A CN114961257A CN202210706573.0A CN202210706573A CN114961257A CN 114961257 A CN114961257 A CN 114961257A CN 202210706573 A CN202210706573 A CN 202210706573A CN 114961257 A CN114961257 A CN 114961257A
- Authority
- CN
- China
- Prior art keywords
- early
- dismantling
- template
- keels
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
- E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention provides a public building basement disc buckle early-dismantling construction method which comprises the steps of early-dismantling frame body design, template matching design, early-dismantling frame body construction, template construction, concrete pouring, early-dismantling head dismantling and the like. The invention has the characteristics of flexible arrangement, safety, reliability, convenient and quick construction.
Description
Technical Field
The invention relates to the technical field of early dismantling of disc fasteners, in particular to an early dismantling construction method for disc fasteners of public building basements.
Background
With the continuous development of building markets, urban underground spaces are developed unprecedentedly, the requirements of owners on construction cost and construction period are more severe, wherein the labor cost and material lease cost of templates and scaffolds account for nearly 40% of the main cost of concrete structures, so that enterprises pay special attention to whether templates and scaffolds can be rapidly turned over for many times.
Based on the above, it is necessary to develop an advanced construction process, because the foreign underground space and factory building are basically beam-free floor systems (pure concrete plates, concrete-free beams), and the structural form of China is basically beam-plate systems (beams and plates), the foreign reference method is unavailable.
Because traditional beam slab structure need build full hall frame before concreting concrete slab when the construction, only be not conform to the support body disconnection of horizontal pole modulus position, and this kind of construction mode no matter be the quantity of support body or construction human cost all higher, consequently lead to construction cost whole rising.
Disclosure of Invention
Aiming at the prior art, the invention provides an early dismantling construction method for a disc buckle of a public building basement.
The invention provides an early dismantling construction method for a disc buckle of a public building basement, which comprises the following steps:
s1, early-dismantling frame design: under the condition of meeting the load requirement, the upper ends of two rows of vertical rods are flexibly adjusted to place early-dismantling heads, main keels are continuously placed along the extension direction of the vertical rod distance, joints are fixedly connected through bolts, secondary keels are placed along the short direction of the vertical rod distance, and a template splicing seam is formed by wood purlin; the early-dismantling head comprises a screw rod, the screw rod is in threaded connection with the top of the vertical rod and is fastened through a lower nut, a U-shaped support is arranged on the screw rod and is used for supporting the main keel, the U-shaped support is in threaded connection with the screw rod and is fastened through an upper nut, and a top support is arranged at the top end of the screw rod;
s2, template matching design: designing a template layout according to the arrangement of the early dismantling frame bodies;
s3, early dismantling frame construction: according to the design of an early dismantling frame body, a support frame body is erected in preference to a beam according to a positioning axis, an early dismantling head is arranged at the top end of a disc buckle support, a lower nut is adjusted to enable a jacking of the early dismantling head to be at a required elevation, the support frame body forms a small unit, the rest small unit frame bodies are flexibly arranged towards two sides in sequence according to design specifications and drawing deepening to meet the requirements of rigidity and load, and each small unit forms an independent support system;
s4, template construction: laying a horizontal main keel in a U-shaped support on the early dismantling frame body, connecting and fixing joints by bolts, adjusting the flatness and the camber, and then sequentially arranging a secondary keel and a shaping template for installation;
s5, pouring concrete: pouring concrete, and maintaining to meet the design standard requirement;
s6, early-dismantling head dismantling: after concrete is completely poured and finally set, the U drags, the jacking supports, the keels and the templates can be removed after the concrete strength reaches 50% of the design strength, and the U drags, the jacking supports, the keels and the templates can be partially removed after the concrete strength reaches 100% of the design strength and when no construction load exists on the upper portion of the concrete.
Preferably, in S1, before the early dismantling frame body is designed, the structure type, the structure span condition, and the special-shaped structure distribution condition of the basement are analyzed according to the structure drawing of the basement, and data of the frame column, the shear wall, and the frame beam of the basement are acquired; determining and optimizing the positions and the number of beam bottom fixed tops and plate bottom early-dismantling heads, and determining the positions of corresponding main keels; and determining the number and the positions of the material transfer port, the pump pipe hole and the pay-off hole.
Preferably, the main keel is made of porous double-C steel.
Preferably, in S2, the templates adopt three specifications of 915 × 1830, 285 × 1830 and 492 × 1830, each vertical rod supports one template 285 × 1830, and one template 915 × 1830 is arranged between the templates 285 × 1830 to form a template belt with a width of 285 mm; between the template bands, uncut 915 x 1830 templates were placed.
Preferably, in S3, when the support body was set up, add according to actual net height and establish pole and the horizontal pole of sweeping the ground, the pole of sweeping the ground is 300mm apart from ground, and horizontal pole quantity is confirmed according to the floor height, and the step pitch is not more than 1200mm between the adjacent horizontal pole, carries out height control through the screw position in order to match the pole setting of different net heights.
Preferably, in S6, the step of detaching includes: reduce early the head of tearing open and demolish primary and secondary fossil fragments and template, 285 of top support 1830, 592.5 1830 template do not tear open, and all the other templates and reinforced material can realize early tearing open, and it is reserve to have enough to meet the need to transfer, and early the back of tearing open, the head is torn open early to remaining pole setting, waits to support and demolishs again when normally tearing open the mould, promptly: the concrete is completely dismantled until the strength of the concrete is increased enough to support the self weight and the construction load under the full span condition; one layer is filled at normal temperature, and two layers are reserved; one layer is fully reserved in winter, and three layers are reserved; when the main and secondary keels are removed, the main and secondary keels are removed from the positions close to the wall and the keels as much as possible, all the short lug nuts are screwed down by more than 60mm, the secondary keels are removed firstly, then the main keels are removed, or the main keels are removed firstly and then the secondary keels are removed along one direction, and the operation is circulated.
Compared with the prior art, the invention has the beneficial effects that: the invention has the characteristics of flexible arrangement, safety, reliability, convenient and quick construction, simultaneously fully utilizes the characteristic of high upright strength of the plate buckle frame body, can increase the upright spacing (up to 2 m), ensures that the construction space in the scaffold is large, is very convenient for material transportation when the template is dismantled, has high turnover efficiency of the template and the square timber, has the horizontal support template dismantling rate of more than 90 percent, can completely dismantle the primary and secondary keels, can be repeatedly used, and can integrally reduce 70 to 80 percent of the investment of template reinforcing materials.
Drawings
Fig. 1 is a schematic structural view of an early dismantling body according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an early detachment head according to an embodiment of the present invention.
In the figure: 1. erecting a rod; 2. a lower nut; 3. screwing a nut; 4. dragging by U; 5. a screw rod; 6. jacking; 7. a main keel; 8. a secondary keel; 9. and (5) template.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
The invention provides an early dismantling construction method for a disc buckle of a public building basement, which comprises the following steps:
s1, early-dismantling frame design: before the design of the early dismantling frame body, analyzing the structure type, the structure span condition and the special-shaped structure distribution condition of the basement according to the structure drawing of the basement, and acquiring data of frame columns, shear walls and frame beams of the basement; determining and optimizing the positions and the number of beam bottom fixed tops and plate bottom early-dismantling heads, and determining the positions of corresponding main keels 7; determining the number and the positions of the material conveying port, the pump pipe hole and the pay-off hole; the early dismantling frame body is designed in such a way that the distance between vertical rods 1 is 1200mm × 1200mm, the early dismantling heads can be flexibly adjusted at the upper ends of two rows of vertical rods according to the design specification under the condition of meeting the load requirement, the main keel 7 is made of porous double C steel, compared with the traditional U-shaped steel, the early dismantling frame body is large in vertical compressive strength, large in lateral rigidity, reliable in connection, relatively light in weight and convenient to operate, 2m in length, and is continuously placed along the extension direction of the distance between the vertical rods, the joints are fixedly connected through bolts, the secondary keel 8 is made of square pipes of 40mm × 40mm × 2mm, and is placed at an interval of @200 along the short direction of the distance between the vertical rods, and the template splicing seam is made of 40 × 90 wood square beams; the early-dismantling head comprises a screw rod 5, the screw rod 5 is in threaded connection with the top of the upright rod 1 and is fastened through a lower nut 2, a U-shaped support 4 is arranged on the screw rod 5 and is used for supporting a main keel 7, the U-shaped support 4 is in threaded connection with the screw rod 5 and is fastened through an upper nut 3, and a top support 6 is arranged at the top end of the screw rod 5;
s2, template matching design: carrying out die matching design on a top plate, a secondary beam, a wallboard, an inner angle, an inner horizontal corner, a cornea and an early-dismantling head part of the basement; the standard span and the variable span of the bracket are designed in a comparison way and meet the requirements of specification and load; according to early split frame body arrangement, design template arrangement diagram: the templates 9 adopt three specifications of 915, 285, 1830 and 492, 1830, each upright pole supports one template 285, 1830, and one template 915, 1830 is arranged between the templates 285, 1830 to form a template belt with the width of 285 mm; arranging uncut 915 x 1830 templates between the template belts;
s3, early dismantling frame construction: according to the design of an early dismantling frame body, a supporting frame body is erected in preference to a beam according to a positioning axis, an early dismantling head is arranged at the top end of a disc buckle support, a lower nut 2 is adjusted to enable a jacking 6 of the early dismantling head to be at a required elevation, an upper nut 3 is adjusted to enable a steel sliding block to be slightly propped against the bottom of the jacking, after a main keel is hung, the top surface of the main keel and the top surface of the jacking are parallel and level, the clear distance between the upper nut 3 and the lower nut 2 is enabled to be larger than or equal to 60mm when the elevation is adjusted, otherwise, the difficulty is increased when subsequent early dismantling operation is carried out; the support frame bodies form a small unit, the rest small unit frame bodies are flexibly arranged towards two sides in sequence according to design specifications and drawing deepening to meet the requirements of rigidity and load, and each small unit forms an independent support system;
when the support frame body is erected, a floor sweeping rod and a horizontal cross rod are additionally arranged according to the actual net height, the distance between the floor sweeping rod and the ground is 300mm, the number of the cross rods is determined according to the layer height, the step distance between the adjacent cross rods is not more than 1200mm, and the height of the support frame body is adjusted through the position of a screw port to be matched with vertical rods with different net heights;
s4, template construction: laying a horizontal main keel in the U-shaped support 4 on the early dismantling frame body, connecting and fixing joints by bolts, adjusting the flatness and camber, and then sequentially arranging a secondary keel 8 and a shaping template for installation;
s5, pouring concrete: pouring concrete, and maintaining to meet the design standard requirement;
s6, early-dismantling head dismantling: after concrete pouring is finished and final setting is carried out, the U support 4, the jacking support 6, the keel and the template 9 can be removed after the concrete strength reaches 50% of the design strength (test block pressure test), and the part can be removed after the concrete strength reaches 100% of the design strength (test block pressure test) and no construction load exists on the upper part;
the step of removing comprises: reduce early the head of tearing open and demolish primary and secondary fossil fragments and template, 285 of top support 1830, 592.5 1830 template do not tear open, and all the other templates and reinforced material can realize early tearing open, and it is reserve to have enough to meet the need to transfer, and early the back of tearing open, the head is torn open early to remaining pole setting, waits to support and demolishs again when normally tearing open the mould, promptly: the concrete is completely dismantled until the strength of the concrete is increased enough to support the self weight and the construction load under the full span condition; one layer is filled at normal temperature, and two layers are reserved; one layer is fully reserved in winter, and three layers are reserved; when the main and secondary keels are removed, the removal is started from the positions close to the wall and the beam as much as possible, all the short lug nuts are firstly screwed off by more than 60mm, the secondary keels are removed firstly, then the main keels are removed, or the main keels are removed firstly and then the secondary keels are removed along one direction, and the operation is circulated; the large plate on the secondary beam can be detached at any time, and the early detaching head is left to continuously prop against the early detaching narrow plate to support the floor until the strength of concrete reaches the strength of the detachable scaffold; when the horizontal rod is disassembled, the hammer is used for uniformly knocking two ends of the horizontal rod, so that the two ends of the horizontal rod are lifted out simultaneously, attention is paid, one end of the horizontal rod cannot be knocked violently, a screw rod which is early disassembled cannot be loosened during mold disassembly, and if the screw rod is loosened, a stress fulcrum is changed.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields, and are within the scope of the present invention.
Claims (6)
1. A public building basement disc buckle early-dismantling construction method is characterized by comprising the following steps:
s1, early-dismantling frame design: under the condition of meeting the load requirement, the upper ends of two rows of vertical rods are flexibly adjusted to place early-dismantling heads, main keels are continuously placed along the extension direction of the vertical rod distance, joints are fixedly connected through bolts, secondary keels are placed along the short direction of the vertical rod distance, and a template splicing seam is formed by wood purlin; the early-dismantling head comprises a screw rod, the screw rod is in threaded connection with the top of the vertical rod and is fastened through a lower nut, a U-shaped support is arranged on the screw rod and is used for supporting the main keel, the U-shaped support is in threaded connection with the screw rod and is fastened through an upper nut, and a top support is arranged at the top end of the screw rod;
s2, template matching design: designing a template layout according to the arrangement of the early dismantling frame bodies;
s3, early dismantling frame construction: according to the design of an early dismantling frame body, a support frame body is erected in preference to a beam according to a positioning axis, an early dismantling head is arranged at the top end of a disc buckle support, a lower nut is adjusted to enable a jacking of the early dismantling head to be at a required elevation, the support frame body forms a small unit, the rest small unit frame bodies are flexibly arranged towards two sides in sequence according to design specifications and drawing deepening to meet the requirements of rigidity and load, and each small unit forms an independent support system;
s4, template construction: laying a horizontal main keel in a U-shaped support on the early dismantling frame body, connecting and fixing joints by bolts, adjusting the flatness and the camber, and then sequentially arranging a secondary keel and a shaping template for installation;
s5, pouring concrete: pouring concrete, and maintaining to meet the design standard requirement;
s6, early-dismantling head dismantling: after concrete is completely poured and finally set, the U drags, the jacking supports, the keels and the templates can be removed after the strength of the concrete reaches 50% of the design strength, and the U drags, the jacking supports, the keels and the templates can be partially removed after the strength of the concrete reaches 100% of the design strength and when no construction load exists on the upper portion of the concrete.
2. The public building basement disc buckle early-dismantling construction method of claim 1, wherein in S1, before the early-dismantling frame body is designed, the structural type, structural span condition and special-shaped structure distribution condition of the basement are analyzed according to the structural drawing of the basement, and the data of the frame column, the shear wall and the frame beam part of the basement are obtained; determining and optimizing the positions and the number of beam bottom fixed tops and plate bottom early-dismantling heads, and determining the positions of corresponding main keels; and determining the number and the positions of the material transfer port, the pump pipe hole and the pay-off hole.
3. The public building basement disc buckle early-dismantling construction method according to claim 1 or 2, wherein the main keel is made of porous double-C steel.
4. The method as claimed in claim 1 or 2, wherein in S2, the templates adopt 915 x 1830, 285 x 1830 and 492 x 1830 specifications, each vertical rod supports one template 285 x 1830, and between the templates 285 x 1830, one template 915 x 1830 is arranged to form a template belt with a width of 285 mm; between the template bands, uncut 915 x 1830 templates were placed.
5. The building basement disc buckle early-dismantling construction method of claim 1 or 2, wherein in S3, when the support frame is erected, a floor sweeping rod and a horizontal cross rod are additionally arranged according to actual net height, the floor sweeping rod is 300mm away from the ground, the number of the cross rods is determined according to floor height, the step distance between adjacent cross rods is not more than 1200mm, and height adjustment is carried out through screw positions to match vertical rods with different net heights.
6. The method for early dismantling of a disk fastener of a public building basement as claimed in claim 1 or 2, wherein in S6, the dismantling step comprises: reducing early head of tearing open and demolising primary and secondary fossil fragments and template, 285 of top support 1830, 592.5 1830 template are not torn open, and all the other templates and reinforced material can realize early tearing open, and the transfer is spare, and after early tearing open, the head is torn open to remaining pole setting early, and it is promptly again to support when normally tearing open the mould to wait to tear open: the concrete is completely dismantled until the strength of the concrete is increased enough to support the self weight and the construction load under the full span condition; one layer is filled at normal temperature, and two layers are reserved; one layer is fully reserved in winter, and three layers are reserved; when the main and secondary keels are removed, the main and secondary keels are removed from the positions close to the wall and the keels as much as possible, all the short lug nuts are screwed down by more than 60mm, the secondary keels are removed firstly, then the main keels are removed, or the main keels are removed firstly and then the secondary keels are removed along one direction, and the operation is circulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210706573.0A CN114961257A (en) | 2022-06-21 | 2022-06-21 | Early-dismantling construction method for disc buckle of public building basement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210706573.0A CN114961257A (en) | 2022-06-21 | 2022-06-21 | Early-dismantling construction method for disc buckle of public building basement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114961257A true CN114961257A (en) | 2022-08-30 |
Family
ID=82970545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210706573.0A Pending CN114961257A (en) | 2022-06-21 | 2022-06-21 | Early-dismantling construction method for disc buckle of public building basement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114961257A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1563298A (en) * | 1976-04-27 | 1980-03-26 | Acrow Ltd | Drophead attachments for builder props |
| CN109680930A (en) * | 2017-10-18 | 2019-04-26 | 五冶集团上海有限公司 | Early-dismantling support system construction method |
| CN109750829A (en) * | 2019-01-24 | 2019-05-14 | 中建八局第三建设有限公司 | The construction method that the unit-combination type support system of deformation monitoring automation is early torn open |
| CN112360147A (en) * | 2020-10-12 | 2021-02-12 | 中如建工集团有限公司 | Construction method of intelligent construction site fastener early-dismantling support real-time monitoring system |
| CN114352006A (en) * | 2022-01-18 | 2022-04-15 | 无锡信泰模架科技有限公司 | Modular recyclable construction process for concrete slab pouring construction |
-
2022
- 2022-06-21 CN CN202210706573.0A patent/CN114961257A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1563298A (en) * | 1976-04-27 | 1980-03-26 | Acrow Ltd | Drophead attachments for builder props |
| CN109680930A (en) * | 2017-10-18 | 2019-04-26 | 五冶集团上海有限公司 | Early-dismantling support system construction method |
| CN109750829A (en) * | 2019-01-24 | 2019-05-14 | 中建八局第三建设有限公司 | The construction method that the unit-combination type support system of deformation monitoring automation is early torn open |
| CN112360147A (en) * | 2020-10-12 | 2021-02-12 | 中如建工集团有限公司 | Construction method of intelligent construction site fastener early-dismantling support real-time monitoring system |
| CN114352006A (en) * | 2022-01-18 | 2022-04-15 | 无锡信泰模架科技有限公司 | Modular recyclable construction process for concrete slab pouring construction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110644664A (en) | Fabricated building construction method and laminated slab construction supporting system | |
| CN103334527A (en) | Steel structure cast-in-site floor arching construction method | |
| CN112609980A (en) | Construction method of post-cast strip back-jacking aluminum alloy single-column | |
| CN111236604A (en) | Safe construction method for cantilever platform on cylinder main body structure | |
| CN211517947U (en) | Bridge case roof beam is prefabricated with shaped steel pedestal | |
| CN103104090B (en) | Silo concrete whole slip template | |
| CN105780922A (en) | Construction method for segmental formwork hoisting system of large-span steel reinforced concrete transfer truss | |
| CN112482434B (en) | Shaped large formwork vertical thin-wall side wall and construction method | |
| CN201794297U (en) | Early-dismantling formwork support system for large-span cast-in-place beam ribbed floorslabs | |
| CN109457814A (en) | Towering and major diameter building top cover construction method based on Bailey bracket structure | |
| CN104790299B (en) | Internal-span unsupported convenient construction support and method for bridge cast-in-place box beam | |
| CN109235871B (en) | Construction method of variable cross-section structure aluminum alloy template | |
| CN111041986A (en) | Cast-in-place continuous box girder formwork system and construction method | |
| CN114961257A (en) | Early-dismantling construction method for disc buckle of public building basement | |
| CN111058628A (en) | Construction method of post-cast strip formwork support system | |
| CN202831621U (en) | Integrated slipform for silo concrete | |
| CN106988520B (en) | Construction method and support system for high-rise suspension structure | |
| CN102418417B (en) | Long-slab-span cast-in-situ beam ribbed floor early-dismantling template formwork system | |
| CN214245382U (en) | Stainless steel-wood combined template applied to bare concrete | |
| CN213449476U (en) | Novel building template | |
| CN102418415B (en) | Short-slab-span cast-in-situ beam ribbed floor early-dismantling template formwork system | |
| CN115058976A (en) | Aluminum alloy internal mold system containing diaphragm plate and variable cross-section cast-in-place box girder and construction method thereof | |
| CN114439040B (en) | Auxiliary device and method for foundation construction between garbage compression | |
| CN219973885U (en) | Hyperboloid roofing template braced system | |
| CN215164738U (en) | Tied-rod arch type fast-splicing support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |