CN209636834U - A kind of prefabricated pier foundation of regeneration monolith - Google Patents

A kind of prefabricated pier foundation of regeneration monolith Download PDF

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Publication number
CN209636834U
CN209636834U CN201821765305.1U CN201821765305U CN209636834U CN 209636834 U CN209636834 U CN 209636834U CN 201821765305 U CN201821765305 U CN 201821765305U CN 209636834 U CN209636834 U CN 209636834U
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China
Prior art keywords
main body
hanging ring
reinforcement cage
stub
steel reinforcement
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Expired - Fee Related
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CN201821765305.1U
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Chinese (zh)
Inventor
雷斌
杨辅智
陆朱汐
熊进刚
晏育松
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Nanchang University
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Nanchang University
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Abstract

The utility model relates to technical field of concrete more particularly to a kind of prefabricated pier foundations of regeneration monolith.Including stub main body, steel reinforcement cage, it is characterized by: the stub main body is in the form of a column, in the steel reinforcement cage setting pier stud, the stub main body is mixed by normal concrete and waste concrete block, vertical equal proportion array has multiple steel fabric sheets in the stub main body, the stub body top is symmetrically arranged with a pair of of hanging ring, and the steel reinforcement cage, steel fabric sheet and hanging ring are integrally poured with stub main body.The traditional building waste of the utility model very good solution needs to utilize it as aggregate, needs to expend a large amount of energy, process is handled.Waste concrete block is processed into recycled aggregate compared to tradition, the processing program of waste concrete block is simple, and comminution energy conssumption consumption is few, and recycling is at low cost, while can rapidly deplete a large amount of urban building waste.

Description

A kind of prefabricated pier foundation of regeneration monolith
Technical field
The present invention relates to technical field of concrete more particularly to a kind of prefabricated pier foundations of regeneration monolith.
Background technique
As transformation of old urban area etc. is continuous perfect in the continuous quickening of China's urbanization paces and city, every year Newly-increased building waste is very huge, these discarded concrete are difficult to degrade.Current processing mode is typically all to be transported Toward countryside or rural area, be disposed by the way of air storage or landfill, only very little part waste concrete it is broken after conduct Building blinding layer or roadbase.Therefore, the resource utilization for carrying out waste concrete implements the sustainable development war of resource Slightly, there is important society, economy, environmental benefit.However, regenerating block coagulation for opposite conventional regeneration aggregate concrete Soil has crushing efficiency height, energy saving, reduces concrete amount, saves the resources such as a large amount of water and cement, can achieve fast Speed utilizes and solves the demand of problem above.
A kind of base form mainly between rigid isolated footing and hand-dug pile foundation of pier foundation.More In layer building, when top shallow layer foundation soil has relatively good supporting course in 2 ~ 5m and when without weak substratum, using artificial When digging hole pile foundation compares with shallow foundation, economy not has apparent advantage, but then needs to excavate using shallow foundation A large amount of earthwork, freight volume is larger, and foundation cost is still higher.However, the pier foundation to fall between then has, anti-seismic performance is good, Single pier bearing capacity is big, and earth excavation is few, and is able to satisfy the design requirement of building, while foundation cost is lower, can be good at full This execution conditions of foot.
Under nation-building form demand, Developing Green, energy saving, environmental protection, and sustainable development mode be future architecture industry hair The direction of exhibition, the prefabricated pier foundation of regeneration monolith that the present invention studies is exactly to generate in this context, very good solution Building waste rapidly and efficiently utilizes, and can greatly save its cost, and Social benefit and economic benefit is significant.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, adapt to reality and need, provide a kind of regeneration block coagulation The prefabricated pier of soil.
In order to achieve the object of the present invention, the technical solution adopted by the present invention are as follows:
A kind of prefabricated pier foundation of regeneration monolith, including stub main body, steel reinforcement cage, the stub main body are in the form of a column, In the steel reinforcement cage setting pier stud, the stub main body is mixed by normal concrete and waste concrete block, the stub Vertical equal proportion array has multiple steel fabric sheets in main body, and the stub body top is symmetrically arranged with a pair of of hanging ring, the steel Muscle cage, steel fabric sheet and hanging ring are integrally poured with stub main body.
The steel reinforcement cage is made of the circular stirrups and the vertical muscle that is vertically arranged between circular stirrups of upper and lower ends, on Equal proportion circle shows more vertical muscle between lower two stirrups, indulges muscle and is not less than 8mm, and the ratio of reinforcement is not less than 0.15%, Stirrup Φ 8mm;Vertical muscle in hanging ring and steel reinforcement cage welds, and the Bend diameter of hanging ring is that 2.5d(d is hanging ring bar diameter), and not It obtains and is less than 60mm;The length of embedment of hanging ring is no less than 30d;Hanging ring exposes the height of concrete, should meet the requirement for wearing snap ring, But also no more than 100mm.
500mm is divided between each steel fabric sheet.
The stub main body is using the circle or polygonal cross-section of not base expanding and base expanding, and H is between 2 ~ 3m for pier shaft height, and diameter D >= 800mm。
The quality that 1 mass of waste concrete block accounts for entire stub main body is while selected useless coagulation between 20% ~ 40% The partial size of soil block body 1 is between 40mm ~ 100mm, and meeting the size grading ratio between 40 ~ 60mm and 60 ~ 100mm is 1.5 ~ 4 Between.
The slump of the normal concrete 2 is 5mm ~ 20mm in 180 ± 20mm, the partial size of coarse aggregate.
The aperture of the steel fabric sheet is minimum between the maximum particle diameter 20mm and waste concrete block of normal concrete aggregate Between partial size 40mm.
A kind of prefabricated pier foundation of regeneration monolith and its construction method, steps are as follows:
(1) the customization regeneration prefabricated pier foundation mold of monolith, mold is assembled and is spliced;
(2) scaffold is set up.On the one hand it is used for fixing mould, on the other hand can also be used for conduct during casting concrete Operating platform;
(3) according to distributed steel requirement banding steel cage, and 4 vertical muscle are symmetrically selected at the top of steel reinforcement cage, by hanging ring according to phase The design requirement answered is welded on corresponding vertical muscle;
(4) steel reinforcement cage is put into mold with crane, in the steel reinforcement cage bottom padded 50mm of concret block, guarantees mold Distance is 50mm in the protective layer of 50mm ± 2mm(reinforcing bar between steel reinforcement cage), while being put into steel reinforcement cage and prevent bias;
(5) waste concrete block is weighed according to size grading, and drenches waste concrete block before pouring, to prevent The too big influence pier body intensity of waste concrete block water suction;
(6) normal concrete of 250mm or so is poured to mold bottom as bed course, is then put into again into steel reinforcement cage useless Concret block then pours normal concrete, is continuously vibrated in casting process using 2 internal vibration sticks.Exist simultaneously It casts and measures it with 500mm mono- label of customization, highly greater than the marking rod of pier shaft length during vibrating normal concrete Pour height, vibration compacting and layer overlay steel fabric sheet when reaching its layer height 500mm.According to same layer height weight Complex Alternating pours more than completing, until completing to pour;
(7) demoulding after pouring at the scene 1 day, is laid with puggaree at the top of prefabricated pier foundation, and is laid with one layer above it Carpet water suction moisturizing, conserved to 28 days;The demoulding after precast plant pours 1 day, is conserved according to standard conditions to 28 days.
The utility model has the advantages that
The beneficial effects of the present invention are:
The traditional building waste of very good solution of the present invention needs to utilize it as aggregate, needs to expend a large amount of energy Amount, process are handled.Waste concrete block is processed into recycled aggregate, the processing program letter of waste concrete block compared to tradition Single, comminution energy conssumption consumption is few, and recycling is at low cost, while can rapidly deplete a large amount of urban building waste.
The quality that waste concrete block weight accounts for entire pier foundation is between 20% ~ 40%, compared to traditional cast-in-place pier foundation, The regeneration prefabricated pier foundation cost of monolith substantially reduces.
By the way of prefabricated, the quality for guaranteeing pier foundation can be very good.Construction simultaneously is more convenient, noiseless, saves Construction cost.
(1) sedimentation that the steel fabric sheet being put into engineering controls waste concrete block well is poured at it simultaneously, prevented The pier foundation lower part accumulated waste concret block poured, and concrete is made to generate isolation, so that regeneration monolith pier foundation Be effectively ensured with quality.
It can be very good to meet unsuitable site operation, the feelings such as pump truck can not reach scene, or need to accelerate construction progress Condition.
Detailed description of the invention
The present invention is described further with case study on implementation with reference to the accompanying drawing.
Fig. 1 is the regeneration prefabricated pier foundation structural schematic diagram of monolith;
Fig. 2 is a kind of diagrammatic cross-section of not reserved vertical muscle of the regeneration prefabricated pier foundation of monolith;
Fig. 3 is a kind of diagrammatic cross-section of reserved vertical muscle of the regeneration prefabricated pier foundation of monolith;
Fig. 4 is the regeneration prefabricated pier foundation cross-sectional view of monolith.
Wherein: 1- waste concrete block;2- normal concrete;3- steel reinforcement cage;301- indulges muscle;302- stirrup;4- steel wire Piece;5- hanging ring.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples:
Referring to Fig. 1-4.
The invention discloses a kind of prefabricated pier of regeneration monolith, including stub main body, steel reinforcement cage 3, the stub masters Body is in the form of a column, and the steel reinforcement cage 3 is arranged in pier stud, and the stub main body is by normal concrete 2 and the mixing system of waste concrete block 1 At vertical equal proportion array has multiple steel fabric sheets 4 in the stub main body, and the stub body top is symmetrically arranged with a pair Hanging ring, the steel reinforcement cage 3, steel fabric sheet 4 and hanging ring 5 are integrally poured with stub main body.
Circular stirrups 302 and the vertical muscle that is vertically arranged in circular stirrups 302 between of the steel reinforcement cage 3 by upper and lower ends 301 form, and equal proportion circle shows more vertical muscle 301 between upper and lower two stirrups 302, indulge muscle 301 and are not less than 8mm, And the ratio of reinforcement is not less than 0.15%, 302 Φ 8mm of stirrup;Vertical muscle in hanging ring and steel reinforcement cage welds, and the Bend diameter of hanging ring is 2.5d(d is hanging ring bar diameter), and cannot be less than 60mm;The length of embedment of hanging ring 5 is no less than 30d;Hanging ring exposes coagulation The height of soil, should meet the requirement for wearing snap ring, but also no more than 100mm.
500mm is divided between each steel fabric sheet 4.
The stub main body is using the circle or polygonal cross-section of not base expanding and base expanding, and H is between 2 ~ 3m for pier shaft height, and diameter D >= 800mm。
The quality that 1 mass of waste concrete block accounts for entire stub main body is while selected useless coagulation between 20% ~ 40% The partial size of soil block body 1 is between 40mm ~ 100mm, and meeting the size grading ratio between 40 ~ 60mm and 60 ~ 100mm is 1.5 ~ 4 Between.
The slump of the normal concrete 2 is 5mm ~ 20mm in 180 ± 20mm, the partial size of coarse aggregate.
The aperture of the steel fabric sheet is minimum between the maximum particle diameter 20mm and waste concrete block of normal concrete aggregate Between partial size 40mm.
It is a kind of according to the prefabricated pier foundation of regeneration monolith and its construction method, it is characterised in that steps are as follows:
(1) the customization regeneration prefabricated pier foundation mold of monolith, mold is assembled and is spliced;
(2) scaffold is set up.On the one hand it is used for fixing mould, on the other hand can also be used for conduct during casting concrete Operating platform;
(3) according to distributed steel requirement banding steel cage, and 4 vertical muscle are symmetrically selected at the top of steel reinforcement cage, by hanging ring according to phase The design requirement answered is welded on corresponding vertical muscle;
(4) steel reinforcement cage is put into mold with crane, in the steel reinforcement cage bottom padded 50mm of concret block, guarantees mold Distance is 50mm in the protective layer of 50mm ± 2mm(reinforcing bar between steel reinforcement cage), while being put into steel reinforcement cage 3 and prevent bias;
(5) waste concrete block is weighed according to size grading, and drenches waste concrete block before pouring, to prevent The too big influence pier body intensity of waste concrete block water suction;
(6) normal concrete of 250mm or so is poured to mold bottom as bed course, is then put into again into steel reinforcement cage useless Concret block then pours normal concrete, is continuously vibrated in casting process using 2 internal vibration sticks.Exist simultaneously It casts and measures it with 500mm mono- label of customization, highly greater than the marking rod of pier shaft length during vibrating normal concrete Pour height, vibration compacting and layer overlay steel fabric sheet when reaching its layer height 500mm.According to same layer height weight Complex Alternating pours more than completing, until completing to pour;
(7) demoulding after pouring at the scene 1 day, is laid with puggaree at the top of prefabricated pier foundation, and is laid with one layer above it Carpet water suction moisturizing, conserved to 28 days;The demoulding after precast plant pours 1 day, is conserved according to standard conditions to 28 days.
A kind of embodiment 1: reserved vertical muscle regeneration prefabricated pier foundation of monolith
(1) the customization regeneration prefabricated pier foundation mold of monolith, mold is assembled and is spliced.
(2) scaffold is set up.On the one hand it is used for fixing mould, is on the other hand also used for during casting concrete as behaviour Make platform;
(3) muscle 301 is indulged according to steel reinforcement cage (3) distributed steel requirement and be not less than 8 Φ 12mm, and the ratio of reinforcement is not less than 0.15%, stirrup 302 Φ, 8@250mm, is bound.The length of vertical muscle 301 is 100mm shorter than pier shaft.And 4 are symmetrically selected to indulge at the top of steel reinforcement cage Hanging ring 5 is welded on corresponding vertical muscle according to corresponding design requirement (with reference to Fig. 1, Fig. 2) by muscle 301.
(4) for hanging ring (5) when production is with installation, the Bend diameter of hanging ring 5 is that 2.5d(d is hanging ring bar diameter), and not It obtains and is less than 60mm;The length of embedment of hanging ring is no less than 30d;Hanging ring exposes the height of concrete, should meet the requirement for wearing snap ring, But also no more than 100mm.
(5) steel reinforcement cage 3 is put into mold with crane, in the 3 padded 50mm of bottom concret block of steel reinforcement cage, it is ensured that Distance controlling 50mm ± 2mm of mold and steel reinforcement cage 3, the cover to reinforcement of as prefabricated pier foundation, prevents steel reinforcement cage when being put into It is eccentric.
(5) it is while selected waste concrete between 20% ~ 40% that 1 mass of waste concrete block, which accounts for the quality of entire pier foundation, The partial size of block 1 between 40mm ~ 100mm, and meet 40 ~ 60mm and 60 ~ 100mm between size grading ratio for 1.5 ~ 4 it Between.Waste concrete block is weighed up according to ratio of the size grading between 1.5 ~ 4, by waste concrete block before pouring 1 drenches, and prevents the too big influence test piece intensity of the water suction of waste concrete block 1.
(6) maximum particle diameter 20mm and waste concrete block 1 of production 4 aperture of steel fabric sheet between 2 aggregate of normal concrete Between minimum grain size 40mm.
(7) it is used as bed course to the normal concrete 2 that mold bottom pours 250mm or so first, then into steel reinforcement cage 3 Waste concrete block 1 is put into, normal concrete 2 is then poured, is continuously shaken in casting process using 2 internal vibration sticks It smashes.It is measured with 500mm mono- label of customization, highly greater than the marking rod of pier shaft length in casting process of vibrating simultaneously Pour height, vibration compacting and layer overlay diameter is slightly less than reinforcing bar on normal concrete 2 when reaching its layer height 500mm The steel fabric sheet 4 of 3 diameter of cage.According to same layer height repeat be alternately accomplished it is above pour, until complete pour.
(8) demoulding after pouring at the scene 1 day, is laid with puggaree at the top of prefabricated pier foundation, while it is laid with one above again Layer carpet water suction moisturizing, conserved to 28 days;The demoulding after precast plant pours 1 day carries out maintenance 28 to day according to standard conditions.
Embodiment 2: the reserved vertical muscle of one kind regenerates the prefabricated pier foundation of monolith
(1) the customization regeneration prefabricated pier foundation mold of monolith, mold is assembled and is spliced.
(2) scaffold is set up.Set up scaffold.On the one hand it is used for fixing mould, is on the other hand also used for casting concrete It is used as operating platform in the process;
(3) muscle 301 is indulged according to 3 distributed steel requirement of steel reinforcement cage and be not less than 8 Φ 12mm, and the ratio of reinforcement is not less than 0.15%, stirrup (302) 8@250mm of Φ, is bound.The vertical reserved some of muscle 301 is convenient for later period situ regeneration monolith outside pier shaft Prefabricated pier foundation spreading.And 4 vertical muscle 301 are symmetrically selected at the top of steel reinforcement cage, hanging ring 5 is welded according to corresponding design requirement (Fig. 1, Fig. 3 are referred to) on corresponding vertical muscle.
(4) for hanging ring 5 when production is with installation, the Bend diameter of hanging ring 5 is that 2.5d(d is hanging ring bar diameter), and must not Less than 60mm;The length of embedment of hanging ring is no less than 30d;Hanging ring exposes the height of concrete, should meet the requirement for wearing snap ring, but Also no more than 100mm.
(5) steel reinforcement cage 3 is put into mold with crane, in the 3 padded 50mm of bottom concret block of steel reinforcement cage, it is ensured that Mold and the distance controlling 50mm of steel reinforcement cage 3 or so, the protective layer of as prefabricated pier foundation, while bias being prevented to be put into.
(5) it is while selected waste concrete between 20% ~ 40% that 1 mass of waste concrete block, which accounts for the quality of entire pier foundation, The partial size of block (1) is between 40mm ~ 100mm, and meeting the size grading ratio between 40 ~ 60mm and 60 ~ 100mm is 1.5 ~ 4 Between.Waste concrete block is weighed up according to ratio of the size grading between 1.5 ~ 4, by waste concrete block before pouring Body (1) drenches, and prevents the too big influence test piece intensity of the water suction of waste concrete block 1;
(6) maximum particle diameter 20mm and waste concrete block of production 4 aperture of steel fabric sheet between 2 aggregate of normal concrete (1) between minimum grain size 40mm.
(7) it is used as bed course to the normal concrete 2 that mold bottom pours 250mm or so first, then into steel reinforcement cage 3 Waste concrete block 1 is put into, normal concrete 2 is then poured, is continuously shaken in casting process using 2 internal vibration sticks It smashes.It is measured with 500mm mono- label of customization, highly greater than the marking rod of pier shaft length in casting process of vibrating simultaneously Pour height, vibration compacting and layer overlay diameter is slightly less than reinforcing bar on normal concrete 2 when reaching its layer height 500mm The steel fabric sheet 4 of 3 diameter of cage.According to same layer height repeat be alternately accomplished it is above pour, until complete pour.
(8) demoulding after pouring at the scene 1 day, is laid with puggaree at the top of prefabricated pier foundation, while it is laid with one above again Layer carpet water suction moisturizing, conserved to 28 days;The demoulding after precast plant pours 1 day, is conserved according to standard conditions to 28 days.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, are similarly included in In scope of patent protection of the invention.

Claims (7)

1. a kind of prefabricated pier foundation of regeneration monolith, including stub main body, steel reinforcement cage (3), it is characterised in that: the stub Main body is in the form of a column, and in steel reinforcement cage (3) the setting pier stud, the stub main body is by normal concrete (2) and waste concrete block (1) it is mixed, there is multiple steel fabric sheets (4) vertical equal proportion array in the stub main body, the stub body top pair Title is provided with a pair of of hanging ring, the steel reinforcement cage (3), steel fabric sheet (4) and hanging ring (5) be integrally poured with stub main body and At.
2. a kind of prefabricated pier foundation of regeneration monolith according to claim 1, it is characterised in that: the steel reinforcement cage (3) it is made of the circular stirrups of upper and lower ends (302) and the vertical muscle (301) being vertically arranged between circular stirrups (302), on Equal proportion circle shows more vertical muscle (301) between lower two stirrups (302), indulges muscle (301) and is not less than 8mm, and matches Muscle rate is not less than 0.15%, stirrup (302) Φ 8mm;Vertical muscle in hanging ring and steel reinforcement cage welds, and the Bend diameter of hanging ring is 2.5d, D is hanging ring bar diameter, and cannot be less than 60mm;The length of embedment of hanging ring (5) is no less than 30d;Hanging ring exposes concrete Highly, the requirement for wearing snap ring should be met, but also no more than 100mm.
3. a kind of prefabricated pier foundation of regeneration monolith according to claim 1, it is characterised in that: each steel wire 500mm is divided between mesh sheet (4).
4. a kind of prefabricated pier foundation of regeneration monolith according to claim 1, it is characterised in that: the stub main body Using the circle or polygonal cross-section of not base expanding and base expanding, H is between 2 ~ 3m for pier shaft height, diameter D >=800mm.
5. a kind of prefabricated pier foundation of regeneration monolith according to claim 1, it is characterised in that: the waste concrete The quality that block (1) quality accounts for entire stub main body is between 20% ~ 40%, while the partial size of selected waste concrete block (1) exists Between 40mm ~ 100mm, and meeting the size grading ratio between 40 ~ 60mm and 60 ~ 100mm is between 1.5 ~ 4.
6. a kind of prefabricated pier foundation of regeneration monolith according to claim 1, it is characterised in that: the common coagulation The slump of native (2) is 5mm ~ 20mm in 180 ± 20mm, the partial size of coarse aggregate.
7. a kind of prefabricated pier foundation of regeneration monolith according to claim 1, it is characterised in that: the steel fabric sheet Aperture between the maximum particle diameter 20mm and waste concrete block minimum grain size 40mm of normal concrete aggregate.
CN201821765305.1U 2018-10-30 2018-10-30 A kind of prefabricated pier foundation of regeneration monolith Expired - Fee Related CN209636834U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109356185A (en) * 2018-10-30 2019-02-19 南昌大学 A kind of prefabricated pier foundation of regeneration monolith and its construction method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109356185A (en) * 2018-10-30 2019-02-19 南昌大学 A kind of prefabricated pier foundation of regeneration monolith and its construction method

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Granted publication date: 20191115

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