CN109537936A - A kind of MBR membrane cisterna monolithic construction method - Google Patents
A kind of MBR membrane cisterna monolithic construction method Download PDFInfo
- Publication number
- CN109537936A CN109537936A CN201811480212.9A CN201811480212A CN109537936A CN 109537936 A CN109537936 A CN 109537936A CN 201811480212 A CN201811480212 A CN 201811480212A CN 109537936 A CN109537936 A CN 109537936A
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- membrane cisterna
- concrete
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- band
- template
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H4/00—Swimming or splash baths or pools
- E04H4/0075—Swimming or splash baths or pools made of concrete
- E04H4/0081—Swimming or splash baths or pools made of concrete with walls and floor cast in situ
-
- 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
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
A kind of MBR membrane cisterna monolithic construction method, it is intended to the construction method for overcoming MBR membrane cisterna in the prior art using setting last-cost joint, it is easy to cause pond body leakage, has the shortcomings that security risk, a kind of MBR membrane cisterna monolithic construction method is provided, construction including membrane cisterna bottom plate, wall and top plate, comprising the following steps: A, the bottom plate and reinforcing bar for setting up membrane cisterna；B, the casting position that expansion reinforcing band is selected in bottom plate, installs close hole steel wire；C, underplate concrete is carried out to pour；D, the bay wall template and reinforcing bar of membrane cisterna are set up, walls concrete is carried out and pours；E, the roof plate template and reinforcing bar of membrane cisterna are set up；F, the casting position that expansion reinforcing band is selected in roof plate template, installs close hole steel wire；G, concrete roof is carried out to pour.The present invention improves anti-seepage effect, ensure that the construction quality of membrane cisterna, use when being suitble to pour MBR membrane cisterna.
Description
Technical field
The present invention relates to architecture construction field more particularly to a kind of MBR membrane cisterna monolithic construction methods.
Background technique
Due to the continuous improvement that social production and people's lives require the multifunction of building and permanentization, engineering knot
Structure more tends to complicated and huge, super large structure and mass concrete building using more and more common, what is generated therewith splits
Seam problem is also more and more.The method for mostly using setting last-cost joint greatly in engineering solves the above problems, however in practice
In, such method adversely affects project progress, construction management, construction stage waterproof etc..MBR membrane cisterna is constructed for super large
Object, the construction method of last-cost joint are easy to cause pond body leakage, not only influence normal use, but also can endanger pond and surrounding
The foundation bearing capacity of building, it is difficult to repair.
Summary of the invention
The present invention overcomes MBR membrane cisternas in the prior art using the construction method of setting last-cost joint, is easy to cause pond body
Leakage, has the shortcomings that security risk, provides a kind of MBR membrane cisterna monolithic construction method.
The present invention realize goal of the invention the technical solution adopted is that: a kind of MBR membrane cisterna monolithic construction method, including membrane cisterna bottom
The construction of plate, wall and top plate, comprising the following steps:
A, the bottom plate and reinforcing bar of membrane cisterna are set up；
B, the casting position of expansion reinforcing band is selected in the bottom plate described in step A, installation separates the close of band and out-of-band
Hole steel wire；
C, it carries out underplate concrete to pour, first pours the expansive concrete in expansion reinforcing band described in step B, then pour expansion
Normal concrete outside reinforcing strip；
D, the bay wall template and reinforcing bar of membrane cisterna are set up, walls concrete is carried out and pours；
E, the roof plate template and reinforcing bar of membrane cisterna are set up；
F, the casting position of expansion reinforcing band is selected in the roof plate template described in step E, installation separates the close of band and out-of-band
Hole steel wire；
G, it carries out concrete roof to pour, first pours the expansive concrete in expansion reinforcing band described in step F, then pour expansion
Normal concrete outside reinforcing strip.
Further, the close hole steel wire is easy high ribbed formwork.
Further, the underplate concrete is poured to pour with concrete roof and is all made of from left to right, one-time-concreting,
One gradient, thin layer covering, incremental method are poured.
Further, in the step A, row's scaffold is set up on the inside of foundation pit, is setting up two rows of foot hands within the walls
Frame.
It is once poured the beneficial effects of the present invention are: the post-cast strip of newly-built MBR membrane cisterna pond body is changed to reinforcing strip by the present invention
It builds, eliminates the work that connection is reinforced in the reserved of post-cast strip, cleaning and reinforcing bar derusting, anti-seepage effect is not only increased, certain
Cost is also reduced in degree, technique is simplified, shortens the duration, ensure that the construction quality of membrane cisterna.
The invention will be further described with specific embodiment with reference to the accompanying drawing.
Detailed description of the invention
Attached drawing 1 is flow chart of the invention.
Specific embodiment
As shown in the picture, a kind of MBR membrane cisterna monolithic construction method of the present embodiment, including membrane cisterna bottom plate, wall and top plate
Construction, comprising the following steps:
A, the bottom plate and reinforcing bar of membrane cisterna are set up.
Bottom plate sets up the scheme of use are as follows:
(1) because of the installation synchronous with baseplate reinforcing bar of the vertical muscle of bay wall, 48 fastener type steel pipe frame fixed steel bars of Φ are set up；The present embodiment is excellent
Row's scaffold is set up in choosing on the inside of foundation pit, two rows of scaffolds is being set up within the walls, using three row's scaffolds in wall two sides pair
Reinforcing bar is reinforced, and construction is facilitated, and the double frame in inside retains after the completion of bottom slab concreting, and as bay wall construction and top board construction branch
Frame.
(2) higher because returning wall, mould installation is hung using 48 double steel pipe of Φ, is fixed with three row's steel pipe frames.
(3) mould is hung to be easily installed, returns wall using 18mm glued board, and be higher than and pour face 10cm, avoids bay wall seam crossing
Spillage.
(4) earth anchor is set in bottom plate, is welded and fixed with main reinforcement, it is fixed when making bay wall formwork erection to use.
(5) screw rod through walls uses M16 screw rod, spacing 600mm.
(6) construction joint uses 400*3 steel plate for sealing water.
Baseplate reinforcing bar construction technology process are as follows: cleaning bed course → set up reinforcing bar fixed frame → bullet reinforcement location line → binding bottom
Plate lower layer muscle → placement split heads → binding upper layer horizontal bar → binding joist → binding upper layer longitudinal rib → welding supporting rib.
B, the casting position of expansion reinforcing band is selected in the bottom plate described in step A, installation separates band and out-of-band
Close hole steel wire.Preferably close hole steel wire is easy high ribbed formwork to the present embodiment, and easy high ribbed formwork is easy for construction, and can increase casting
The intensity of body.
C, it carries out underplate concrete to pour, first pours the expansive concrete in expansion reinforcing band described in step B, then pour
Normal concrete outside expansion reinforcing band.
(1) overall pouring plan are as follows:
Structures underplate concrete one-time-concreting amount is big.Membrane cisterna underplate concrete thickness 700mm is poured by deformation joint block placement
Amount is generally 1500m3More than.Expansive concrete can increase the compactness of concrete, improve anti-permeability performance, and in inside concrete
Generate the prestressing force of 0.2 ~ 0.7Mpa, it can offset or partial offset concrete shrinkage, creep etc. caused by tensile stress, to mention
The crack resistance of high concrete.Pond body is C30S6 concrete, lower than reinforcing strip concrete grade, for this purpose, quasi- first shift to an earlier date reinforcing strip
4m is poured.For this purpose, 5 pumps of proposed adoption pour, 1 is specialized in reinforcing strip concreting, and in addition 4 pour for general area.Coagulation
Native delivery pump presses 50 m3/ h meter, construction intensity about 180m3/ h, it is contemplated that completed in 10 hours.
(2) underplate concrete pours requirement are as follows:
Underplate concrete uses C30 self-waterproof concrete, seepage-resistant grade S6.Reinforcing strip is C35 pea gravel concreten, mixes microdilatancy
Agent.The slump of casting concrete should be controlled in 12 ~ 14cm, presetting period 8-10hr.Concreting proposed adoption concrete drags
Pump transport.The preferred underplate concrete of the present embodiment pour and take " from left to right, one-time-concreting, a gradient, thin layer covering,
It is incremental " method, it is this trickle naturally pour mode and can preferably avoid the formation of cold seam.Every span length 3000~
4000mm, width of marking time are 2.5~3m.Inclined plane delamination pours every thickness 30cm, and the gradient takes 1:2.Concreting since lower,
It promotes from one end to the other end, successively rises along the long side direction.When pouring, upper one is poured before next layer concrete initial set
Layer concrete avoids generating cold seam, and surface bleeding is drained in time.
D, the bay wall template and reinforcing bar of membrane cisterna are set up, walls concrete is carried out and pours.
Bay wall template sets up the scheme of use are as follows:
(1) since wall is higher, and area is big, and wall independently pours, and construction joint is set to floor beam bottom water position with upper bit.With
For membrane cisterna, construction joint is set to 8.0m absolute altitude i.e. 8.9m underfloor beam bottom position.
(2) bay wall template construction requirement:
1, situation, all templates are equipped with according to this engineering structure form, scale, level, duration quality requirement and my corporate resource
It is all made of waterproof pluwood template, flitch back cord, steel tube fastener support, cooperation is using split bolt.To guarantee construction quality, mention
High form cycling rate and the rate that is used in turn, template will be used all using the wooden agglutination formwork of 1830 × 915 × 18 double-deck films
50 × 100 × 2000 wooden a tree, used in making timber for boats make back cord or joist, general 48 × 3.5 steel pipe of φ, the support system that 16 Screw arbor with nut at both-ends of φ is reinforced,
Screw rod spacing 600mm through walls；
2, in the construction process, for the template after removing every time, to arrange personnel to clear up and check, for have it is damaged answer and
Shi Genghuan, all templates should number use after unifying processing and fabricating；
3, general column, beam, plate, wall form are all made of waterproof pluwood template, flitch back cord, steel tube fastener support, cooperation use
A certain number of split bolts, steel channel column hoop and lateral adjustable stay bolt of being formed.The general template of this engineering is existing
Field unified blanking processing in advance, and template construct is carried out according to the requirement that thin wood is processed；
4, template construction preparation:
A, carry out the unwrapping wire of center line and the position line: first with the column of theodolite and steel tape pilot measurement building, beam axis and
The control rise point of sideline or camber line.When template unwrapping wire, scene should have first been cleared up, template is then popped up according to the construction drawing line of ink marker
Interior outer edge or control point and center line or centreline control point, in order to which template is installed and is corrected；
B, absolute altitude measurement tasks are carried out: with level the horizontal absolute altitude pilot measurement of building to template installation site；
C, carry out levelling work: template support pad bottom should be levelling in advance, to guarantee that template position is correct, prevents template bottom from leaking
Slurry.Leveling method is the 100 wide 1:2 cement mortar floating troweling outside template inner edge.To control formwork elevation measuring position just
True property；
D, Template Location benchmark is set: being positioned using angle bar, i.e., cuts the angle bar of certain length, spot welding according to component cross dimensions
In main reinforcement, be subject to main reinforcement section of not burning, carried out on the outside of angle bar using 1:2 cement mortar it is levelling, to guarantee reinforcing bar position
It is accurate with template position height to set；
5, template construction main points
A, stringent to be organized and implemented by parameters such as the branch tie distance of design, tie size, spacing, split bolt spacing, forbid any
Change；
B, template must classify stacking, must not move him and use and damage template；
C, template surface answers separant coating, with benefit demoulding；
D, it should check that the construction such as built-in pipe, embedded iron parts, lightning protection is pre-buried before form for seal whether to have constructed and checked and accepted
Finish.
The scheme that bay wall reinforcement construction uses are as follows:
(1) bay wall reinforcement rebar craft process are as follows: vertical vertical bar and vertical reinforcement locating rack → vertical and horizontal muscle of binding.
(2) bay wall Joint Re-bar Construction are as follows:
1, it is fixed that horizontal reinforcement is set to guarantee that wall sectional dimension, vertical reinforcement spacing and protective layer thickness are accurate, before reinforcement installation
Position frame, horizontal reinforcement locating rack require self-control dedicated in strict accordance with wall sectional dimension and rebar design.Locating rack is in bottom slab concreting
Recycling is removed after concrete；
2, vertical reinforcement and vertical reinforcement locating rack are found: first tying up the overlap joint muscle that vertical bar and vertical reinforcement locating rack are stretched out with lower layer
Prick positioning, vertical reinforcement locating rack spacing@4000mm；
3, remaining longitudinal and transverse muscle is bound then according to vertical reinforcement locating rack, it is perpendicular that vertical muscle position no longer binds other
To muscle, directly replace obtaining vertical applied force muscle herein；
4, joist should be bound point by point, carried out in tetragonal symmetry, avoided wall reinforcing bar to a direction skew, horizontal bar connector answers mistake
It opens.Several vertical positioning bars are first generally found, is connect with the reinforcing bar that lower layer protrudes into, is then bound positioning transverse bar, then bind remaining
Vertical bar finally binds remaining transverse bar；
5, horizontal and vertical positioning bar should send special messenger to be responsible for processing in processing site, and strict control size utilizes leftover pieces as far as possible
Processing, positioning bar is fixed longitudinal and transverse joist position and the effective tool for guaranteeing thickness of protection tier；
6, when reinforcing bar has 180 ° of crotches, crotch should be towards in concrete.Silk is bound towards in concrete；
7, the vertical reinforcement of lower layer's wall is exposed flooring part and is taken with horizontal location reinforcing bar accurate positioning with the reinforcing bar of sharp upper walls
It connects.When upper and lower level wall section changes, the exposed portion of lower layer's wall reinforcing bar, it is necessary to before assembling reinforcement, leading contracture
Accurately；
8, pond body exterior wall cover to reinforcement, using plastic cushion as cover to reinforcement.Plastic cushion can be completed in reinforcement installation
Main reinforcement is directly buckled into afterwards, it is fixed with main reinforcement and beautiful and tidy.
(3) bay wall concrete pouring scheme are as follows:
1, using commerical ready-mixed concrete, the coagulation slump is 12 ~ 14cm, and the presetting period controls in 8-10hr；
2, it is conveyed using concrete pump, speed of perfusion is controlled in 2m/h；
3, it since bay wall is longer for convenience of construction concrete placings, is poured since one when walls concrete pours, iterative method.It is more
Node is distributed when platform pump construction, is poured from node to both sides；
4, first layer pours height control in 30cm or so when concreting, prevents concrete gravity is overweight from template being caused to be run
Mould is gradually being boosted after concrete has intensity, and placement layer by layer vibrates.Lift height controls the coagulation in 50cm
Native blanking point answers dispersed placement.
E, the roof plate template and reinforcing bar of membrane cisterna are set up.
Roof plate template sets up the scheme of use are as follows:
(1) set up using fastener type steel pipe frame, it is convenient that fastener type steel pipe frame sets up form, step pitch selection flexibly, and with other Φ
48*3.2 disk buckle type scaffold can be linked to be entirety by fastener, increase stability.
(2) bar of sweeping the floor is set at the 20cm of ground, and four side of bracket and centre are every four row's upright bars setting together longitudinal scissors
Support, by the continuous setting in bottom to top；Water together is arranged every 2 steps downwards since top layer every 4 row's upright bars with intermediate in bracket both ends
Flat bridging.
(3) template does not allow demoulding within the scope of the standard width of a room in an old-style house at reinforcing strip, for this purpose, intending that steel pipe arranged side by side is arranged in reinforcing strip two sides
Support frame.
F, the casting position of expansion reinforcing band is selected in the roof plate template described in step E, installation separates band and out-of-band
Close hole steel wire.Preferably close hole steel wire is easy high ribbed formwork to the present embodiment.
G, it carries out concrete roof to pour, first pours the expansive concrete in expansion reinforcing band described in step F, then pour
Normal concrete outside expansion reinforcing band.Concrete roof uses C30 self-waterproof concrete, seepage-resistant grade S6.Reinforcing strip is C35
Pea gravel concreten mixes micro-expanding agent.The slump of casting concrete should be controlled in 12 ~ 14cm, presetting period 8-10hr.Concrete
Pour the transport of proposed adoption concrete pump.The preferred concrete roof of the present embodiment pour and take " from left to right, one-time-concreting,
One gradient, thin layer covering are incremental " method, it is this trickle naturally pour mode and can preferably avoid the formation of cold seam.
Every 3000~4000mm of span length, width of marking time are 2.5~3m.Inclined plane delamination pours every thickness 30cm, and the gradient takes 1:2.Concrete pours
It builds since lower, is promoted along the long side direction from one end to the other end, successively risen.It, be at the beginning of next layer concrete when pouring
A layer concrete is poured before solidifying, avoids generating cold seam, and surface bleeding is drained in time.
Claims (4)
1. a kind of MBR membrane cisterna monolithic construction method, the construction including membrane cisterna bottom plate, wall and top plate, which is characterized in that including with
Lower step:
A, the bottom plate and reinforcing bar of membrane cisterna are set up；
B, the casting position of expansion reinforcing band is selected in the bottom plate described in step A, installation separates the close of band and out-of-band
Hole steel wire；
C, it carries out underplate concrete to pour, first pours the expansive concrete in expansion reinforcing band described in step B, then pour expansion
Normal concrete outside reinforcing strip；
D, the bay wall template and reinforcing bar of membrane cisterna are set up, walls concrete is carried out and pours；
E, the roof plate template and reinforcing bar of membrane cisterna are set up；
F, the casting position of expansion reinforcing band is selected in the roof plate template described in step E, installation separates the close of band and out-of-band
Hole steel wire；
G, it carries out concrete roof to pour, first pours the expansive concrete in expansion reinforcing band described in step F, then pour expansion
Normal concrete outside reinforcing strip.
2. a kind of MBR membrane cisterna monolithic construction method according to claim 1, which is characterized in that the close hole steel wire
For easy high ribbed formwork.
3. a kind of MBR membrane cisterna monolithic construction method according to claim 1, which is characterized in that the underplate concrete
It pours to pour with concrete roof and be all made of from left to right, one-time-concreting, a gradient, thin layer covering, incremental method
It is poured.
4. a kind of MBR membrane cisterna monolithic construction method according to claim 1, which is characterized in that in the step A,
Row's scaffold is set up on the inside of foundation pit, is setting up two rows of scaffolds within the walls.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811480212.9A CN109537936A (en) | 2018-12-05 | 2018-12-05 | A kind of MBR membrane cisterna monolithic construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811480212.9A CN109537936A (en) | 2018-12-05 | 2018-12-05 | A kind of MBR membrane cisterna monolithic construction method |
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| CN109537936A true CN109537936A (en) | 2019-03-29 |
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| CN201811480212.9A Withdrawn CN109537936A (en) | 2018-12-05 | 2018-12-05 | A kind of MBR membrane cisterna monolithic construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561041A (en) * | 2020-05-21 | 2020-08-21 | 浙江世润建创科技发展有限公司 | Cast-in-place concrete pool bottom plate and construction method thereof |
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| US4326364A (en) * | 1980-02-01 | 1982-04-27 | Silvey Elmer R | In-ground, insulated swimming pool construction and method |
| CN1769606A (en) * | 2004-11-04 | 2006-05-10 | 中国建筑第八工程局第二建筑公司 | Egg type digestion tank construction method |
| CN105970989A (en) * | 2016-06-22 | 2016-09-28 | 中国建筑第二工程局有限公司 | Seamless construction method for raft foundation |
| CN108505805A (en) * | 2018-03-21 | 2018-09-07 | 杭州江润科技有限公司 | Large-scale cast-in-place pond and its construction method are split in expansion reinforcing band control |
| CN109057338A (en) * | 2018-08-17 | 2018-12-21 | 中国十七冶集团有限公司 | A kind of post-cast strip anti-cracking waterproof construction method |
-
2018
- 2018-12-05 CN CN201811480212.9A patent/CN109537936A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4326364A (en) * | 1980-02-01 | 1982-04-27 | Silvey Elmer R | In-ground, insulated swimming pool construction and method |
| CN1769606A (en) * | 2004-11-04 | 2006-05-10 | 中国建筑第八工程局第二建筑公司 | Egg type digestion tank construction method |
| CN105970989A (en) * | 2016-06-22 | 2016-09-28 | 中国建筑第二工程局有限公司 | Seamless construction method for raft foundation |
| CN108505805A (en) * | 2018-03-21 | 2018-09-07 | 杭州江润科技有限公司 | Large-scale cast-in-place pond and its construction method are split in expansion reinforcing band control |
| CN109057338A (en) * | 2018-08-17 | 2018-12-21 | 中国十七冶集团有限公司 | A kind of post-cast strip anti-cracking waterproof construction method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561041A (en) * | 2020-05-21 | 2020-08-21 | 浙江世润建创科技发展有限公司 | Cast-in-place concrete pool bottom plate and construction method thereof |
| CN111561041B (en) * | 2020-05-21 | 2021-07-06 | 浙江世润建创科技发展有限公司 | Cast-in-place concrete pool bottom plate and construction method thereof |
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Application publication date: 20190329 |