CN108222046A - A kind of method of construction of prefabricated isolated footing - Google Patents
A kind of method of construction of prefabricated isolated footing Download PDFInfo
- Publication number
- CN108222046A CN108222046A CN201611130004.7A CN201611130004A CN108222046A CN 108222046 A CN108222046 A CN 108222046A CN 201611130004 A CN201611130004 A CN 201611130004A CN 108222046 A CN108222046 A CN 108222046A
- Authority
- CN
- China
- Prior art keywords
- ground beam
- detached column
- ground
- column pedestal
- bar
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
Abstract
The invention discloses a kind of methods of construction of prefabricated isolated footing, and this method comprises the following steps：1) prefabricated detached column pedestal and ground beam first in factory；2) unwrapping wire, excavation pit on the ground stamp concrete cushion, install detached column pedestal；3) the welded reinforcement fixing buckle on detached column base bottom exposed steel bar, reinforcing bar fixing buckle are connected with concrete cushion by expandable nail and fixed, and remove support element；4) ground beam is set up, the protruding bar of ground beam one end is bound on pillar protruding bar；5) adjacent ground beam is installed, ground beam protruding bar is connected and fixed by bar connecting button, installs gang form；6) connecting portion between full detached column pedestal and the connection space and ground beam of concrete cushion, between ground beam and detached column pedestal is poured with high-grade concrete；7) after installing, all ground beam support elements and gang form are removed.The method of the present invention construction installation speed is fast, and production efficiency is high, improves the quality and installation accuracy of isolated footing.
Description
Technical field
The present invention relates to assembled architecture technical field, the method for construction of specifically a kind of prefabricated isolated footing.
Background technology
Building is located on stratum, and the whole load of building is passed to below by the basis of building structure
Ground undertakes, and foundation is the key that ensure building safety and meet one of requirement.Traditional isolated footing is built
It makes and is all completed using cast in situs, on the ground then unwrapping wire, excavation pit stamp concrete mats in foundation pit first
Layer reproduces field assembling reinforcement, has set up the template of isolated footing and be molded with concreting.The construction of traditional isolated footing is
Site tissue manpower and materials are produced, and there are hand labor heavy dependence, working efficiency is low, mechanization degree is low and weather
The shortcomings of influence of the variation to work with season is big, and the quality assurance of cast-in-place isolated footing is difficult.
Since the construction of assembled architecture is high to the position of isolated footing and assembling reinforcement required precision, so we select
It is prefabricated in the factory in advance using isolated footing and reproduces the method that field is assembled.On according to construction requirement, in the pre- Mr. of factory
The isolated footing of production could ensure the requirement for reaching assembled precision with top connection reinforcement location precision.
Invention content
The technical problems to be solved by the invention are to provide a kind of method of construction of prefabricated isolated footing, and this method is using pre-
Detached column pedestal processed and prefabricated ground beam assembly construction can overcome prior art hand labor heavy dependence, working efficiency low, mechanical
Change degree is low and the problems such as influence of the variation in weather and season to work, and can solve cast-in-place isolated footing quality and peace
Fill the problem of accuracy guarantee is difficult.
The present invention solves above-mentioned technical problem with following technical solution：
The method of construction of the prefabricated isolated footing of the present invention, including following operating procedure：
1) prefabricated whole detached column pedestal and ground beam first in factory；
2) when installing, then first unwrapping wire, excavation pit on the ground stamp concrete cushion in foundation pit, wait for coagulation
After soil padding solidifies well, the support element of single column foundation seat is set up on concrete cushion, then lifts detached column pedestal to support
The top of part adjusts the height of support element, to ensure detached column pedestal perpendicular to the ground and allow detached column base bottom and concrete
Certain altitude is formed between bed course；
3) it after all detached column pedestals all install, is observed using special instrument and adjusts detached column pedestal transverse direction
Vertically all point-blank, then welded reinforcement fixing buckle, reinforcing bar are fixed on the exposed steel bar of detached column base bottom
Button is connected with concrete cushion by expandable nail and fixed, then support element is removed；
4) ground beam support element is set up on the ground, ground beam is erected to the top of ground beam support element, adjusts ground beam support element,
To ensure ground beam perpendicular to detached column pedestal and ground beam is allowed to reach specified altitude assignment, then the protruding bar of ground beam one end is bound
On pillar protruding bar；
5) adjacent ground beam is installed again, adjusts ground beam support element, ensures between ground beam and ground beam on the same line, to pass through
Bar connecting button is connected and fixed the protruding bar between ground beam, then will by attachment bolt in the lower section of ground beam protruding bar
Gang form side connect fixed and opposite side with ground beam and connect fixation with detached column pedestal；
6) after gang form is all fixedly mounted, full detached column pedestal and concrete mats are poured with high-grade concrete
The connection space of layer, while the connecting portion between ground beam and between ground beam and detached column pedestal is poured into full high grade coagulation
Soil makes detached column pedestal form an entirety, the steel of such full wafer ground beam with detached column pedestal with concrete cushion and ground beam
Muscle is all linked together, and concrete also forms an entirety；
7) all ground beam support elements are removed after installing and construction can be completed in gang form.
The method of construction of above-mentioned prefabricated isolated footing, the detached column base bottom of use are embedded with exposed steel bar, convenient for
The welding of reinforcing bar fixing buckle achievees the effect that support positioning.
The method of construction of above-mentioned prefabricated isolated footing, the protruding bar length at the prefabricated ground beam both ends of use is different, there is one
The protruding bar at end is compared with the length of the other end.
The method of the present invention uses prefabricated detached column pedestal and prefabricated ground beam assembly construction, and detached column pedestal and ground beam can be pre-
First in plant produced, in the prefabricated component better quality of plant produced, and in-site installation is simple.Compared to the prior art, have existing
The advantages that field installation speed is fast, working efficiency is high, mechanization degree is high and work is not influenced by weather and seasonal variations, together
The quality and installation accuracy of Shi Tigao isolated footings, and positive negative zero more than main body connection accuracy can ensure.
Description of the drawings
Fig. 1 is the agent structure schematic diagram for the isolated footing building that the method for the present invention is built.
Fig. 2 is the left view schematic diagram of Fig. 1.
Fig. 3 is the assembly magnification diagram of independent column foundation A, ground beam a and ground beam c.
In figure：A-detached column pedestal
A-ground beam one
B-ground beam two
C-ground beam three
D-ground beam four
1-concrete cushion
2-foundation pit
3-ground beam support element
4-expandable nail
5-reinforcing bar fixing buckle
6-exposed steel bar
7-attachment bolt
8-gang form
9-protruding bar one
10-reinforcing bar connection button
11-pillar protruding bar
12-protruding bar two
Specific embodiment
The method of construction of the prefabricated isolated footing of the present invention is further described below in conjunction with the accompanying drawings：
As depicted in figs. 1 and 2, the isolated footing that the method for the present invention is built is mainly by several detached column pedestal A and several
One a of beam, two b of ground beam, three c of ground beam and four d of ground beam are formed, and the pillar that the pillar of detached column pedestal A is equipped on the outside of stretching is overhanging
Reinforcing bar 11, one a of ground beam, two b of ground beam, three c of ground beam and four d both ends of ground beam are respectively equipped with one 9 and of protruding bar for stretching out outside
Protruding bar 2 12, detached column pedestal A right angle settings, in being mutually perpendicular between ground beam and between detached column pedestal A and ground beam
Installation.
As shown in figure 3, isolated footing, when building, first installation fixes detached column pedestal A, ground beam is then set up and adjusted
The protruding bar 2 12 of three c one end of ground beam is bound on pillar protruding bar 11, passes through bar connecting button 10 by the position of three c
Protruding bar 1 between ground beam and protruding bar 2 12 are formed a fixed connection, finally make ground beam steel between formed it is a piece of
It is whole, gang form 8 is installed, pours the connection space of full detached column pedestal A and concrete cushion 1 with concrete, while by ground beam
Between and the connecting portion between ground beam and detached column pedestal A pour full concrete.
The concrete operation step of the method for the present invention is as follows：
1) prefabricated whole detached column pedestal A and ground beam first in factory, ground beam is by one a of ground beam, two b of ground beam, ground beam
Three c and four d of ground beam compositions；
2) when installing, then first unwrapping wire, excavation pit 2 on the ground stamp concrete cushion 1 in foundation pit 2, wait for mixed
After the solidifying solidification of soil padding 1 is good, the support element of single column foundation seat A is set up on concrete cushion 1, then lifts detached column pedestal A
To the top of support element, the height of support element is adjusted, to ensure detached column pedestal A perpendicular to the ground and allow detached column pedestal A bottoms
Certain altitude is formed between concrete cushion 1；
3) it after all detached column pedestal A are all installed, is observed using special instrument and adjusts detached column pedestal A horizontal strokes
To and it is vertical all point-blank, then welded reinforcement fixing buckle 5, reinforcing bar on the exposed steel bar 6 of detached column pedestal A bottoms
Fixing buckle 5 is connected with concrete cushion 1 by expandable nail 4 and fixed, then support element is removed；
4) ground beam support element 3 is set up on the ground, three c of ground beam is erected to the top of ground beam support element 3, adjusts ground beam branch
Support member 3, to ensure three c of ground beam perpendicular to detached column pedestal A and three c of ground beam is allowed to reach specified altitude assignment, then by three c one end of ground beam
Protruding bar 2 12 bind on pillar protruding bar 11；
5) adjacent ground beam is installed again, adjusts ground beam support element 3, ensures between ground beam and ground beam on the same line, to lead to
It crosses bar connecting button 10 to be fixedly connected the protruding bar 1 between ground beam and the formation of protruding bar 2 12, then outside ground beam
Stretch reinforcing bar 1 and protruding bar 2 12 lower section 8 side of gang form is connect with ground beam by attachment bolt 7 it is fixed and another
Side connect fixation with detached column pedestal A；
6) after gang form 8 is all fixedly mounted, full detached column pedestal A and concrete are poured with high-grade concrete
The connection space of bed course 1, while the connecting portion between ground beam and between ground beam and detached column pedestal A is poured into full high grade and is mixed
Solidifying soil makes detached column pedestal form an entirety with detached column pedestal with concrete cushion and ground beam, such full wafer ground beam
Reinforcing bar is all linked together, and concrete also forms an entirety；
7) all ground beam support elements 3 are removed after installing and construction can be completed in gang form 8.
The detached column base bottom that the present invention uses is embedded with exposed steel bar, convenient for the welding with reinforcing bar fixing buckle, reaches
Support the effect of positioning.
The protruding bar length at the prefabricated ground beam both ends that the present invention uses is different, has the protruding bar of one end compared with the other end
It is long.The method of the present invention uses prefabricated detached column pedestal and prefabricated ground beam assembly construction, and detached column pedestal and ground beam can exist in advance
Plant produced, in the prefabricated component better quality of plant produced, and in-site installation is simple；The method of the present invention improves the matter of isolated footing
Amount and installation accuracy, and positive negative zero more than main body connection accuracy can ensure.
Claims (3)
1. a kind of method of construction of prefabricated isolated footing, which is characterized in that the method for construction includes following operating procedure：
1) prefabricated whole detached column pedestal and ground beam first in factory；
2) when installing, then first unwrapping wire, excavation pit on the ground stamp concrete cushion in foundation pit, wait for concrete mats
After layer solidification is good, the support element of single column foundation seat is set up on concrete cushion, then lifts detached column pedestal to support element
Top adjusts the height of support element, to ensure detached column pedestal perpendicular to the ground and allow detached column base bottom and concrete cushion
Between form certain altitude；
3) after all detached column pedestals all install, observed using special instrument and adjust detached column pedestal laterally and it is perpendicular
To all point-blank, then the welded reinforcement fixing buckle on the exposed steel bar of detached column base bottom, reinforcing bar fixing buckle lead to
It crosses expandable nail and connects fixation, then support element is removed with concrete cushion；
4) ground beam support element is set up on the ground, ground beam is erected to the top of ground beam support element, adjusts ground beam support element, to protect
Card ground beam perpendicular to detached column pedestal and allows ground beam to reach specified altitude assignment, then binds the protruding bar of ground beam one end in pillar
On protruding bar；
5) adjacent ground beam is installed again, adjusts ground beam support element, ensures between ground beam and ground beam on the same line, to pass through reinforcing bar
Junction button is connected and fixed the protruding bar between ground beam, then will be combined by attachment bolt in the lower section of ground beam protruding bar
Template side connect fixed and opposite side with ground beam and connect fixation with detached column pedestal；
6) after gang form is all fixedly mounted, full detached column pedestal and concrete cushion are poured with high-grade concrete
Connection space, while the connecting portion between ground beam and between ground beam and detached column pedestal is poured into full high-grade concrete, make
Detached column pedestal forms an entirety with concrete cushion and ground beam with detached column pedestal, and the reinforcing bar of such full wafer ground beam is whole
It is linked together, concrete also forms an entirety；
7) all ground beam support elements are removed after installing and construction can be completed in gang form.
2. the method for construction of prefabricated isolated footing according to claim 1, which is characterized in that the detached column base bottom of use
It is embedded with exposed steel bar.
3. the method for construction of prefabricated isolated footing according to claim 1, which is characterized in that the prefabricated ground beam both ends of use
Protruding bar length is different, there is the length of the protruding bar compared with the other end of one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611130004.7A CN108222046A (en) | 2016-12-09 | 2016-12-09 | A kind of method of construction of prefabricated isolated footing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611130004.7A CN108222046A (en) | 2016-12-09 | 2016-12-09 | A kind of method of construction of prefabricated isolated footing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108222046A true CN108222046A (en) | 2018-06-29 |
Family
ID=62637152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611130004.7A Pending CN108222046A (en) | 2016-12-09 | 2016-12-09 | A kind of method of construction of prefabricated isolated footing |
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| CN (1) | CN108222046A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339087A (en) * | 2018-10-08 | 2019-02-15 | 贺州通号装配式建筑有限公司 | A kind of foundation structure system of low-rise building |
| CN110965572A (en) * | 2019-12-31 | 2020-04-07 | 中国电建集团贵州电力设计研究院有限公司 | Street lamp foundation prefabricated structure and construction method |
| CN112832284A (en) * | 2021-02-25 | 2021-05-25 | 唐山港口实业集团有限公司 | Container heavy container yard corner foundation and construction method thereof |
| CN113668588A (en) * | 2021-08-20 | 2021-11-19 | 中建五局土木工程有限公司 | Efficient backfill construction method for large-scale assembled steel plate box factory building foundation |
-
2016
- 2016-12-09 CN CN201611130004.7A patent/CN108222046A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339087A (en) * | 2018-10-08 | 2019-02-15 | 贺州通号装配式建筑有限公司 | A kind of foundation structure system of low-rise building |
| CN109339087B (en) * | 2018-10-08 | 2023-10-27 | 贺州通号装配式建筑有限公司 | Infrastructure system of low-rise building |
| CN110965572A (en) * | 2019-12-31 | 2020-04-07 | 中国电建集团贵州电力设计研究院有限公司 | Street lamp foundation prefabricated structure and construction method |
| CN112832284A (en) * | 2021-02-25 | 2021-05-25 | 唐山港口实业集团有限公司 | Container heavy container yard corner foundation and construction method thereof |
| CN113668588A (en) * | 2021-08-20 | 2021-11-19 | 中建五局土木工程有限公司 | Efficient backfill construction method for large-scale assembled steel plate box factory building foundation |
| CN113668588B (en) * | 2021-08-20 | 2022-10-11 | 中建五局土木工程有限公司 | Efficient backfill construction method for large-scale assembled steel plate box factory building foundation |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180629 |
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| WD01 | Invention patent application deemed withdrawn after publication |