CN109898565A - Utilize the construction method of anti-float anchor rod brace foundation gluten - Google Patents
Utilize the construction method of anti-float anchor rod brace foundation gluten Download PDFInfo
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- CN109898565A CN109898565A CN201910202904.5A CN201910202904A CN109898565A CN 109898565 A CN109898565 A CN 109898565A CN 201910202904 A CN201910202904 A CN 201910202904A CN 109898565 A CN109898565 A CN 109898565A
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- anchor rod
- float anchor
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- float
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Abstract
The invention discloses a kind of construction methods using anti-float anchor rod brace foundation gluten.The step of construction method are as follows: 1) blinding concrete pours；2) axial control network is established on bedding plane, and coordinate is measured in grid；3) it according to grid internal coordinate, anti-float anchor rod bent anchor reinforcing bar top mark height etc., cuts reinforcing bar and anti-float anchor rod is made；4) after being laid with bottom muscle, gluten and anti-float anchor rod, the anchoring section of anti-float anchor rod and floor ribs are welded, last concreting.The present invention can reduce reinforcing bar usage amount and artificial investment, saved resource, reduced engineering cost.
Description
Technical field
The present invention relates to building support construction technical fields, and in particular to a kind of to utilize anti-float anchor rod brace foundation gluten
Construction method.
Background technique
It controls mass concrete raft foundation gluten to sink, be supported frequently with large-sized reinforced stool (or split heads).Horse
Stool mostly uses large gauge ribbed bar to be made greatly, and the spacing of arrangement is smaller, not only needs to be made using more reinforcing bar, also
A large amount of manpower is needed to be processed, high material consumption is time-consuming, is easy to influence construction speed and construction quality.
Summary of the invention
The object of the present invention is to provide a kind of construction methods using anti-float anchor rod brace foundation gluten, and can reduce reinforcing bar makes
Dosage and artificial investment.
To achieve the above object, the invention adopts the following technical scheme:
A kind of construction method using anti-float anchor rod brace foundation gluten, comprising the following steps:
1) before anti-float anchor rod construction, the concreting of blinding layer is first carried out；
2) after bed course final set, axial control network is established on entire construction site bedding plane, by construction site according to (5
~15) m × (5~15) m specification is divided into grid；The central point and 4 angle points for measuring each grid, take in 5 points
Least favorable coordinate of the coordinate of highest point as the grid；
3) it cuts reinforcing bar and anti-float anchor rod is made, it is curved that the straight anchor length of the anti-float anchor rod in different grids is equal to anti-float anchor rod
Absolute altitude at the top of anchor section subtracts the diameter of anchor pole main reinforcement, then subtracts the highest point absolute altitude in grid, and anti-float anchor rod anchors into bottom plate
Anchoring depth be anti-float anchor rod straight anchor length and the sum of bent anchor length；
4) bottom rib of bottom floor, floor ribs and embedded anti-float anchor rod, the anchoring section of anti-float anchor rod are laid with and are supported in floor ribs
Bottom；The anchoring section of anti-float anchor rod and floor ribs are welded, the concreting of bottom plate can be finally carried out.
In above-mentioned technical proposal:
In step 1), in bed course casting process, the face absolute altitude of the good bed course of strict control, marks the face of bed course
Height is within the scope of the construction error that specification allows.After the completion of bed course pours, needs to carry out concrete finished product protection before final set, forbid
Worker and machinery are walked about on bed course, forbid placing of material on bed course.
In step 2), the specification of the grid is preferably 10m × 10m.
In step 4), when the longitudinal rib of anti-float anchor rod is 1,2~3 identical anchorage lengths are welded in longitudinal rib surrounding
Auxiliary bar, the anchoring section and floor ribs of longitudinal rib and auxiliary bar weld；It, directly will be curved when longitudinal rib is 2~4
Anchor section and floor ribs are welded.The auxiliary bar being welded with is preferably same specification, with the Ribbed Bar of model and identical anchorage length.
In step 4), the anti-float anchor rod and floor ribs welding after, can in the grid of anti-float anchor rod surrounding cloth
If steel pipe jacking, is used to support floor ribs.Preferably, during the steel pipe top Tobe is set between anti-float anchor rod and grid
Between region.For example, steel pipe jacking is then set to the region of 5m × 5m when the specification of grid is 10m × 10m.
In step 4), in the quantity of anti-float anchor rod, arrangement spacing and range or the length for anchoring into bottom plate, it is not enough to replace horse
When the effect of stool, the design structure of anti-float anchor rod can adjust.For example, the anchoring section of anti-float anchor rod is changed to elongated setting, or
Lateral support is added below anchoring section support zone.
In step 4), when the anchoring section and floor ribs are welded, the first outermost contact point of spot welding, it is ensured that anchoring section with
Point-by-point welding inwardly again after floor ribs horizontal location.
In step 4), the bottom plate, with plastic foil fencing lawn, keeps backplate surface to be in after concreting final set
Moisture state；7d is no less than to the concrete curing time using portland cement, ordinary portland cement mixing under room temperature, is prevented
Water concrete, post-cast strip concrete curing time be no less than 14d；When daily mean temperature is lower than 5 DEG C, without water seasoning.
In step 1) and step 4), the concrete of the blinding layer and bottom plate uses placement layer by layer, and every layer pours thickness
No more than 400mm, the level of vibrating head vibrates spacing no more than 400mm.
The beneficial effects of the present invention are:
1, using anti-float anchor rod brace foundation gluten, so that anti-float anchor rod keeps playing while original effect instead of horse
The effect of stool can save the usage amount of reinforcing bar and reduce artificial investment；
2, least favorable coordinate is obtained by setting grid when the distribution of anti-float anchor rod, can be improved the essence of reinforcing bar cutting
Degree, and the anchorage length of anti-float anchor rod is accurately controlled, improve construction quality；
3, the straight anchor portion and bent anchor portion of anti-float anchor rod, can be on the basis of original or conventional anti-float anchor rod, welding short steel rod
It is made, economizes on resources, reduces engineering cost.
Specific embodiment
The present invention will be described below, and the specific embodiments described herein are merely illustrative of the invention,
It is not intended to limit the present invention.
Embodiment 1
Project name: certain mansion project
1.1 project profiles: this engineering is located at Nanning, and engineering overall floorage 118195.01m2, wherein underground is built
Build area 55657.90m2, 1 layer of basement, 47090.04 ㎡ of superstructure area, aerial part has the building 1#~3#, is building
Upper 23 layers, 3 layers of annex, building general height 72.3m；Main structure type is frame-shear structure, and in September, 2016 goes into operation.
1.2 construction methods:
Utilize the construction method of anti-float anchor rod brace foundation gluten, the specific steps are as follows:
1) before anti-float anchor rod construction, the concreting of blinding layer is first carried out；In bed course casting process, bed course is controlled
Face absolute altitude within the scope of the construction error that specification allows, after the completion of bed course pours, concrete finished product protection is carried out before final set；
2) after bed course final set, axial control network is established on entire construction site bedding plane, by construction site according to 10m
The specification of × 10m is divided into the grid of same homalographic；The central point and 4 angle points for measuring each grid, take in 5 points
Least favorable coordinate of the coordinate of highest point as the grid；
3) it cuts reinforcing bar and anti-float anchor rod is made, it is curved that the straight anchor length of the anti-float anchor rod in different grids is equal to anti-float anchor rod
The reinforcing bar top mark height of anchor subtracts the diameter of anchor pole main reinforcement, then the highest point absolute altitude anti-float anchor rod subtracted in grid anchors into bottom plate
Anchoring depth is the sum of straight anchor length and bent anchor length of anti-float anchor rod；
4) bottom rib of bottom floor, floor ribs and embedded anti-float anchor rod, the anchoring section of anti-float anchor rod are laid with and are supported in floor ribs
Bottom；The anchoring section of anti-float anchor rod and floor ribs are welded, elder generation's spot welding outermost contact point when welding, it is ensured that anchoring section with
It is welded point by point again while inwardly after floor ribs horizontal location, can finally carry out the concreting of bottom plate.
Wherein, when the longitudinal rib of anti-float anchor rod is 1, be welded with 2~3 same specifications in longitudinal rib surrounding, with model and
The anchoring section and floor ribs of the Ribbed Bar of identical anchorage length, longitudinal rib and Ribbed Bar weld；When longitudinal rib is 2~4
When root, directly bent anchor section and floor ribs are welded.
Wherein, it in the quantity of anti-float anchor rod, arrangement spacing and range or the length for anchoring into bottom plate, is not enough to instead of split heads
When effect, the anchoring section of anti-float anchor rod can be changed to elongated setting, or add lateral support below anchoring section support zone.
Wherein, in the concreting excessively of blinding layer and bottom plate, every layer of vibrating head pours thickness and is no more than 400mm,
Level vibrates spacing no more than 400mm；After anti-float anchor rod and floor ribs welding, in the range cloth of anti-float anchor rod surrounding 5m × 5m
If steel pipe jacking, is used to support floor ribs.Bottom plate, with plastic foil fencing lawn, keeps bottom plate after concreting final set
Surface is in moisture state；Under room temperature not to the concrete curing time using portland cement, ordinary portland cement mixing
Less than 7d, waterproof concrete, post-cast strip concrete curing time be no less than 14d；It, must not water seasoning when daily mean temperature is lower than 5 DEG C.
1.3 condition of construction: before submitting application to the present invention, 3# building-owner's body has bound, 1~7 layer of progress masonry construction.
1.4 performance analyses: the integral construction duration of this engineering shifts to an earlier date 10d completion.The foundation pit bottom of this engineering is rectangle, side
A length of 85m × 70m, area are 5950 ㎡.It needs to add the split heads measure muscle that spacing is 1m × 1m between sole plate bilayer plate muscle,
Reinforcing bar is C20.The quantity of split heads needed for sole plate is constructed is about 5950.Ignore the bending adjusted value of reinforcing bar, each split heads
Length should be 2m, the total amount of split heads reinforcing bar is about 29.4 tons.Split heads is replaced using anti-float anchor rod brace foundation gluten, through calculating
Fee of material can save about 28800 yuan, and labour cost can save about 10800 yuan, the administration fee about 30000 that can be saved after duration shortening
Member adds up to cost-saved 69600 yuan.
Embodiment 2
Project name: certain automobile city project
1.1 project profiles: this engineering is located at tourist resources, and engineering uses frame-shear-wall structure, wherein ground 3
Layer, construction area 23614.42m2。
1.2 construction methods: with embodiment 1.
1.3 condition of construction: before submitting application to the present invention, main body has bound, 1~3 layer of progress masonry construction.
1.4 performance analyses: this engineering integral construction duration shifts to an earlier date 8d completion.Benefit analysis methods reference implementation example 1, through surveying
It calculates, adds up to cost-saved about 46000 yuan.
Embodiment 3
Project name: certain project first stage of the project A#, B# building engineering
1.1 project profiles: this engineering is located at tourist resources Gangkou District, and 2 layers of underground, 31 layers on the ground, construction area is about
26000 ㎡, the design life of structure are 50 years.
1.2 construction methods: with embodiment 1.
1.3 condition of construction: before submitting application to the present invention, it has been completed.
1.4 performance analyses: this engineering integral construction duration shifts to an earlier date 10d completion.Benefit analysis methods reference implementation example 1, warp
Measuring and calculating, adds up to cost-saved about 48500 yuan.
Claims (9)
1. utilizing the construction method of anti-float anchor rod brace foundation gluten, which comprises the following steps:
1) before anti-float anchor rod construction, the concreting of blinding layer is first carried out；
2) after bed course final set, axial control network is established on entire construction site bedding plane, by construction site according to (5~15)
M × (5~15) m specification is divided into grid；The central point and 4 angle points for measuring each grid, take highest point in 5 points
Least favorable coordinate of the coordinate as the grid；
3) it cuts reinforcing bar and anti-float anchor rod is made, the straight anchor length of the anti-float anchor rod in different grids is equal to anti-float anchor rod bent anchor section
The absolute altitude at top subtracts the diameter of anchor pole main reinforcement, then subtracts the highest point absolute altitude in grid, and anti-float anchor rod anchors into the anchor of bottom plate
Gu segment length is the sum of straight anchor length and bent anchor length of anti-float anchor rod；
4) bottom rib of bottom floor, floor ribs and embedded anti-float anchor rod, the anchoring section of anti-float anchor rod are laid with and are supported in floor ribs bottom；
The anchoring section of anti-float anchor rod and floor ribs are welded, the concreting of bottom plate can be finally carried out.
2. construction method according to claim 1, it is characterised in that: when the longitudinal rib of anti-float anchor rod is 1, in longitudinal direction
Muscle surrounding is welded with the auxiliary bar of 2~3 identical anchorage lengths, and the anchoring section and floor ribs of longitudinal rib and auxiliary bar weld
It connects；When longitudinal rib is 2~4, directly bent anchor section and floor ribs are welded.
3. construction method according to claim 1, it is characterised in that: the specification of the grid is 10m × 10m.
4. construction method according to claim 1 or 3, it is characterised in that: after the anti-float anchor rod and floor ribs welding,
Steel pipe jacking is laid in the grid of anti-float anchor rod surrounding, is used to support floor ribs.
5. construction method according to claim 4, it is characterised in that: the steel pipe top Tobe is set to anti-float anchor rod and grid
Intermediate region between net.
6. construction method according to claim 1, it is characterised in that: elongated set can be used in the anchoring section of the anti-float anchor rod
It sets, or adds lateral support below anchoring section support zone.
7. construction method according to claim 1, it is characterised in that: when the anchoring section and floor ribs are welded, first point
Weld outermost contact point, it is ensured that point-by-point welding inwardly again after anchoring section and floor ribs horizontal location.
8. construction method according to claim 1, it is characterised in that: the concrete of the blinding layer and bottom plate, which uses, to be divided
Layer pours, and every layer pours thickness no more than 400mm, and the level of vibrating head vibrates spacing no more than 400mm.
9. construction method according to claim 1, it is characterised in that: the bottom plate is after concreting final set, with modeling
Expect film fencing lawn, backplate surface is kept to be in moisture state；It is mixed under room temperature to using portland cement, ordinary portland cement
The concrete curing time of system is no less than 7d, waterproof concrete, post-cast strip concrete curing time be no less than 14d；When daily mean temperature is low
When 5 DEG C, without water seasoning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202904.5A CN109898565A (en) | 2019-03-18 | 2019-03-18 | Utilize the construction method of anti-float anchor rod brace foundation gluten |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202904.5A CN109898565A (en) | 2019-03-18 | 2019-03-18 | Utilize the construction method of anti-float anchor rod brace foundation gluten |
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| Publication Number | Publication Date |
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| CN109898565A true CN109898565A (en) | 2019-06-18 |
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ID=66953274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910202904.5A Pending CN109898565A (en) | 2019-03-18 | 2019-03-18 | Utilize the construction method of anti-float anchor rod brace foundation gluten |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09328771A (en) * | 1996-06-07 | 1997-12-22 | Shimizu Corp | Floating preventing structure of underground structure |
| CN201280726Y (en) * | 2008-08-06 | 2009-07-29 | 青岛海川建设集团有限公司 | Combination anti-floating piled anchor node water-proof structure |
| CN202359579U (en) * | 2011-11-29 | 2012-08-01 | 中国建筑第八工程局有限公司 | Structure for supporting underground raft plate by use of anti-floating anchor rods |
| CN202401478U (en) * | 2012-03-06 | 2012-08-29 | 徐金 | Anti-floating anchor bolt bundle |
| CN202509532U (en) * | 2011-12-22 | 2012-10-31 | 深圳市市政工程总公司 | Multi-rib tension type anti-floating anchor |
| CN207176768U (en) * | 2017-07-10 | 2018-04-03 | 青岛中建联合建设工程有限公司 | A kind of Underground Building for Anti-floating anchor pole water proof structure |
-
2019
- 2019-03-18 CN CN201910202904.5A patent/CN109898565A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09328771A (en) * | 1996-06-07 | 1997-12-22 | Shimizu Corp | Floating preventing structure of underground structure |
| CN201280726Y (en) * | 2008-08-06 | 2009-07-29 | 青岛海川建设集团有限公司 | Combination anti-floating piled anchor node water-proof structure |
| CN202359579U (en) * | 2011-11-29 | 2012-08-01 | 中国建筑第八工程局有限公司 | Structure for supporting underground raft plate by use of anti-floating anchor rods |
| CN202509532U (en) * | 2011-12-22 | 2012-10-31 | 深圳市市政工程总公司 | Multi-rib tension type anti-floating anchor |
| CN202401478U (en) * | 2012-03-06 | 2012-08-29 | 徐金 | Anti-floating anchor bolt bundle |
| CN207176768U (en) * | 2017-07-10 | 2018-04-03 | 青岛中建联合建设工程有限公司 | A kind of Underground Building for Anti-floating anchor pole water proof structure |
Non-Patent Citations (1)
| Title |
|---|
| 丁小波: "一种通过控制抗拔锚杆标高代替底板马凳筋的深化设计", 《施工技术》 * |
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Application publication date: 20190618 |