CN112411608A - Construction method of assembled blast furnace - Google Patents
Construction method of assembled blast furnace Download PDFInfo
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- CN112411608A CN112411608A CN202011179231.5A CN202011179231A CN112411608A CN 112411608 A CN112411608 A CN 112411608A CN 202011179231 A CN202011179231 A CN 202011179231A CN 112411608 A CN112411608 A CN 112411608A
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- sleeve
- blast furnace
- construction method
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- General Engineering & Computer Science (AREA)
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- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention provides a construction method of an assembled blast furnace, which comprises the following steps: prefabricating a connecting piece inside the foundation; the connecting pieces between two adjacent foundations are connected together in a sleeving manner; the hooping encryption is carried out on the area between the two adjacent bases after the sleeving; concrete is poured between the two adjacent foundations to form a whole. The method of the invention has at least the following advantages: 1. the precast concrete is adopted for construction, so that the construction procedures are reduced, and the civil construction period is greatly shortened; 2. the large-scale machinery is utilized to save manpower and material force and reduce the manufacturing cost; 3. the construction of the precast concrete with reliable quality is adopted, the overall quality of the structure is controlled more reliably, and the problem of structural quality caused by human factors can be greatly avoided. 4. The period is shortened, and the potential safety hazard in the construction process is reduced.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to a construction method of an assembled blast furnace.
Background
At present, in the existing newly-built blast furnace, a cast-in-place concrete structure is adopted in the civil engineering construction stage, namely the traditional construction process flows of reinforcement bar binding, formwork supporting and concrete pouring. This method is more traditional, but has some disadvantages: 1. in the cast-in-place structure, a series of common quality problems, even quality defects, can be generated in the reinforcement engineering and the template engineering according to human factors, and influence is generated on the whole structure. 2. The construction period is long, and the direct cost of the engineering produced by the man-machine is large. 3. The influence of the environment is large, and particularly the construction progress is easily influenced in the construction stage in rainy season. 4. The cast-in-place structure needs to be subjected to the working procedures of 28-day maintenance and the like. 5. A large amount of wood is needed for temporary support, a large amount of scaffold templates can be consumed, and energy conservation and environmental protection are not facilitated. 6. For part of deep foundation pit projects and construction of a cast-in-place structure of a basement, unstable factors and dangerous sources are generated for a long construction period, different measures (such as well point precipitation) are needed due to different geological conditions, and the overall cost control is difficult to control.
Disclosure of Invention
In view of the above, the present invention provides a construction method for an assembled blast furnace, which is intended to at least partially solve the above-mentioned technical problems in the prior art.
In one aspect, the invention provides a construction method of an assembled blast furnace, comprising the following steps:
prefabricating a connecting piece inside the foundation;
the connecting pieces between two adjacent foundations are connected together in a sleeving manner;
the hooping encryption is carried out on the area between the two adjacent bases after the sleeving;
concrete is poured between the two adjacent foundations to form a whole.
Further, when the foundation is a bearing platform and a connecting beam respectively, a sleeve is prefabricated on the bearing platform, a dowel bar is prefabricated at the end part of the connecting beam, and the bearing platform and the connecting beam are connected together by inserting the sleeve and the dowel bar together and pouring slurry into the sleeve.
Further, after the end parts between the bearing platform and the connecting beam are connected, the stirrups are arranged between the bearing platform and the connecting beam in a tightening mode, and the concrete is poured.
Furthermore, when the sleeve is prefabricated on the bearing platform, firstly, the prefabricated dowel bars are arranged in the bearing platform, and then the sleeve is sleeved on the prefabricated dowel bars.
Furthermore, the sleeve is provided with an internal thread, the prefabricated joint bar at the end part of the connecting beam is provided with an external thread, and the sleeve and the prefabricated joint bar at the end part of the connecting beam are connected together through the thread.
Furthermore, grout outlet holes are formed in the upper portion and the lower portion of the sleeve, grouting holes are formed in the lower portion of the sleeve, and grouting is conducted into the sleeve through the grouting holes, so that the sleeve is connected with the inserted bars prefabricated at the end portions of the connecting beams.
Furthermore, when the foundation is a precast beam and the two precast beams are connected, the end parts of the precast beams are provided with reserved joint bars, and the reserved joint bars at the end parts of the two precast beams are sleeved together through a sleeve.
Furthermore, after the reserved joint bars at the end parts of the two precast beams are sleeved together by the sleeve, grouting is performed to the inside of the sleeve, so that the sleeve is firmly connected with the reserved joint bars.
Furthermore, after the sleeve is connected with the reserved joint bar, the stirrups are encrypted between the two adjacent precast beams, and concrete is poured to connect the two adjacent precast beams together.
Furthermore, the sleeve is in threaded connection with the reserved dowel bars on the two adjacent precast beams, and the two ends of the sleeve are respectively provided with a grouting hole and a grout outlet hole.
Compared with the prior art, the method has the beneficial effects that the method at least has the following advantages: 1. the precast concrete is adopted for construction, so that the construction procedures are reduced, and the civil construction period is greatly shortened; 2. the large-scale machinery is utilized to save manpower and material force and reduce the manufacturing cost; 3. the construction of the precast concrete with reliable quality is adopted, the overall quality of the structure is controlled more reliably, and the problem of structural quality caused by human factors can be greatly avoided. 4. The period is shortened, and the potential safety hazard in the construction process is reduced.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a flow chart of a method for constructing a fabricated blast furnace according to an embodiment of the present invention;
FIG. 2 is a schematic view of a sleeve and a tendon connection provided in an embodiment of the present invention;
fig. 3 is a schematic connection diagram of precast beams according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The embodiment of the invention provides a construction method of an assembled blast furnace, which is characterized in that structural components are integrally decomposed and are respectively prefabricated in a factory on the premise of meeting use and design requirements, the specific prefabrication method refers to an atlas 15G365-1/15G365-2, the prefabricated materials need to be strictly controlled in quality, and construction is combined with a cast-in-place structure, so that the purpose of shortening the construction period is achieved.
Referring to fig. 1, the method of the present embodiment specifically includes the following steps:
step one, S101: prefabricating a connecting piece inside the foundation;
step two S102: the connecting pieces between two adjacent foundations are connected together in a sleeving manner;
step three, S103: the hooping encryption is carried out on the area between the two adjacent bases after the sleeving;
step four S104: concrete is poured between the two adjacent foundations to form a whole.
The method comprises two implementation modes: 1. the sleeve connection is adopted.
For example, when the independent foundation is prefabricated, a sleeve (at the connecting part of a bearing platform and a connecting beam) is reserved in the interior, a grouting hole is reserved at the corresponding position, a dowel is reserved at the corresponding position of the connecting beam, the dowel is connected with the sleeve during assembly, and grouting is carried out densely.
2. And connecting the steel bars in a lap joint mode.
For example, two precast beams are connected, the joint bars are reserved at the beam ends, the joint bars are connected in a sleeve mode, the main beam ribs are encrypted by the stirrups, then formwork supporting is carried out, and concrete is poured to form integral connection.
Specifically, when the foundation is a bearing platform and a connecting beam respectively, a sleeve 3 is prefabricated on the bearing platform, a dowel bar 1 is prefabricated at the end part of the connecting beam, the sleeve 3 is spliced with the dowel bar 1, and slurry 5 is poured into the sleeve, so that the bearing platform and the connecting beam are connected together.
Specifically, after the end portions of the bearing platform and the coupling beam are connected, the stirrup is tightened between the bearing platform and the coupling beam, and then concrete is poured.
Specifically, when the sleeve 3 is prefabricated on the bearing platform, the prefabricated dowel 11 is firstly arranged in the bearing platform, and then the sleeve 3 is sleeved on the prefabricated dowel 11.
Specifically, an internal thread is formed in the sleeve 3, an external thread is formed in the prefabricated joint bar 1 at the end part of the connecting beam, and the sleeve and the prefabricated joint bar 1 at the end part of the connecting beam are connected together through the thread.
Specifically, the upper part and the lower part of the sleeve 3 are provided with grout outlet holes 2, the lower part of the sleeve is provided with a grouting hole 4, and grouting is carried out in the sleeve through the grouting hole 4, so that the sleeve 3 is connected with the dowel bar 1 prefabricated at the end part of the connecting beam.
The construction process is reduced and the civil construction period is greatly shortened by adopting the precast concrete construction; 2. the large-scale machinery is utilized to save manpower and material force and reduce the manufacturing cost; 3. the construction of the precast concrete with reliable quality is adopted, the overall quality of the structure is controlled more reliably, and the problem of structural quality caused by human factors can be greatly avoided. 4. The period is shortened, and the potential safety hazard in the construction process is reduced.
In another possible embodiment, referring to fig. 3, specifically, when the base is a precast beam 6 and the two precast beams 6 are connected, the end portions of the precast beams 6 are provided with reserved joint bars 7, and the reserved joint bars 7 at the end portions of the two precast beams 6 are sleeved together through the sleeves 3.
Specifically, after the sleeve 3 is used for sleeving the reserved joint bars 7 at the end parts of the two precast beams 6 together, grouting is performed in the sleeve 3, so that the sleeve 3 is firmly connected with the reserved joint bars 7.
Specifically, after the sleeve 3 is connected with the reserved dowel 7, the stirrups are arranged between two adjacent precast beams 6, and concrete is poured to connect the two adjacent precast beams 6 together.
Specifically, the sleeve 3 is in threaded connection with the reserved dowels 7 on two adjacent precast beams 6, and the two ends of the sleeve are respectively provided with the grouting hole 4 and the grout outlet hole 2.
It can be seen that the method of this embodiment has at least the following advantages: 1. the precast concrete is adopted for construction, so that the construction procedures are reduced, and the civil construction period is greatly shortened; 2. the large-scale machinery is utilized to save manpower and material force and reduce the manufacturing cost; 3. the construction of the precast concrete with reliable quality is adopted, the overall quality of the structure is controlled more reliably, and the problem of structural quality caused by human factors can be greatly avoided. 4. The period is shortened, and the potential safety hazard in the construction process is reduced.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A construction method of an assembled blast furnace is characterized by comprising the following steps:
prefabricating a connecting piece inside the foundation;
the connecting pieces between two adjacent foundations are connected together in a sleeving manner;
the hooping encryption is carried out on the area between the two adjacent bases after the sleeving;
concrete is poured between the two adjacent foundations to form a whole.
2. The fabricated blast furnace construction method of claim 1, wherein when the foundation is a cap and a coupling beam, respectively, a sleeve is prefabricated on the cap, a dowel is prefabricated at an end of the coupling beam, and the cap and the coupling beam are coupled together by inserting the sleeve and the dowel together and pouring grout into the sleeve.
3. The fabricated blast furnace construction method of claim 2, wherein after the end connection between the cap and the coupling beam, the stirrup is tightened between the two and the post-cast concrete is poured.
4. The fabricated blast furnace construction method according to claim 2, wherein when the sleeve is prefabricated on the bearing platform, the prefabricated dowel is firstly arranged in the bearing platform, and then the sleeve is sleeved on the prefabricated dowel.
5. The assembly type blast furnace construction method according to claim 4, wherein the sleeve is provided with an internal thread, the prefabricated joint bar at the end part of the connecting beam is provided with an external thread, and the sleeve and the prefabricated joint bar at the end part of the connecting beam are connected together through the thread.
6. The fabricated blast furnace construction method according to claim 5, wherein the upper and lower portions of the sleeve are provided with grout outlet holes, and the lower portion of the sleeve is provided with grouting holes through which grouting is performed into the sleeve, so that the sleeve and the stud prefabricated at the end of the coupling beam are coupled together.
7. The fabricated blast furnace construction method according to claim 1, wherein when the foundation is a precast beam, and the two precast beams are connected, the pre-fabricated joint bars are arranged at the end parts of the precast beams, and the pre-fabricated joint bars at the end parts of the two precast beams are sleeved together through a sleeve.
8. The fabricated blast furnace construction method according to claim 7, wherein after the casing pipe sleeves the reserved joint bars at the ends of the two precast girders, grouting is performed into the casing pipe so that the casing pipe and the reserved joint bars are firmly connected together.
9. The fabricated blast furnace construction method of claim 8, wherein after the sleeve is coupled to the prepared tendon, the adjacent two precast girders are coupled together by performing a stirrup-tightening and pouring concrete between the adjacent two precast girders.
10. The fabricated blast furnace construction method according to claim 8, wherein the sleeve is screwed with the prepared dowels of two adjacent precast girders, and a grouting hole and a grout outlet are respectively formed at both ends of the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011179231.5A CN112411608A (en) | 2020-10-29 | 2020-10-29 | Construction method of assembled blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011179231.5A CN112411608A (en) | 2020-10-29 | 2020-10-29 | Construction method of assembled blast furnace |
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| CN112411608A true CN112411608A (en) | 2021-02-26 |
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| CN202011179231.5A Pending CN112411608A (en) | 2020-10-29 | 2020-10-29 | Construction method of assembled blast furnace |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155683A (en) * | 2015-08-12 | 2015-12-16 | 四川省建筑设计研究院 | Prefabricated beam-column connection in prefabricated concrete buildings and construction method thereof |
| CN108775083A (en) * | 2018-07-09 | 2018-11-09 | 东南大学 | The assembly concrete frame structure and construction method connected outside precast beam plastic hinge region |
| CN109750688A (en) * | 2017-11-07 | 2019-05-14 | 青岛中科坤泰管廊有限公司 | A kind of pin-connected panel prefabricated foundation |
| CN110107023A (en) * | 2019-05-10 | 2019-08-09 | 中国十七冶集团有限公司 | A kind of rigid connection prefabricated frame for assembled architecture is set a roof beam in place |
| CN110593302A (en) * | 2019-09-29 | 2019-12-20 | 国网安徽省电力有限公司经济技术研究院 | Basic device for supporting heavy-load equipment of transformer substation and assembly method |
-
2020
- 2020-10-29 CN CN202011179231.5A patent/CN112411608A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155683A (en) * | 2015-08-12 | 2015-12-16 | 四川省建筑设计研究院 | Prefabricated beam-column connection in prefabricated concrete buildings and construction method thereof |
| CN109750688A (en) * | 2017-11-07 | 2019-05-14 | 青岛中科坤泰管廊有限公司 | A kind of pin-connected panel prefabricated foundation |
| CN108775083A (en) * | 2018-07-09 | 2018-11-09 | 东南大学 | The assembly concrete frame structure and construction method connected outside precast beam plastic hinge region |
| CN110107023A (en) * | 2019-05-10 | 2019-08-09 | 中国十七冶集团有限公司 | A kind of rigid connection prefabricated frame for assembled architecture is set a roof beam in place |
| CN110593302A (en) * | 2019-09-29 | 2019-12-20 | 国网安徽省电力有限公司经济技术研究院 | Basic device for supporting heavy-load equipment of transformer substation and assembly method |
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Application publication date: 20210226 |