CN114482594A - Construction method for retaining support of historical landscape civil-improvement commercial building structure - Google Patents
Construction method for retaining support of historical landscape civil-improvement commercial building structure Download PDFInfo
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- CN114482594A CN114482594A CN202111557393.2A CN202111557393A CN114482594A CN 114482594 A CN114482594 A CN 114482594A CN 202111557393 A CN202111557393 A CN 202111557393A CN 114482594 A CN114482594 A CN 114482594A
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- 238000010276 construction Methods 0.000 title claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 52
- 239000010959 steel Substances 0.000 claims abstract description 52
- 230000000694 effects Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 230000009466 transformation Effects 0.000 abstract description 5
- 230000002787 reinforcement Effects 0.000 description 8
- 239000004567 concrete Substances 0.000 description 7
- 239000011449 brick Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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- 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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
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- Engineering & Computer Science (AREA)
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- Chemical & Material Sciences (AREA)
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- Working Measures On Existing Buildindgs (AREA)
Abstract
A construction method for retaining a support of a historical landscape civil-improvement commercial building structure comprises the following steps: arranging the frame columns in pairs in front of opposite wall bodies in the building, wherein each frame column and the original wall body form a counterfort effect; mounting a steel truss on the top of each pair of frame columns to form a plant house type supporting system; and arranging an independent foundation below the frame columns, reserving beam ribs and plate ribs, completely removing the interior of the support system after the support system is built, and connecting the independent foundations of all the frame columns into a raft foundation. The method can reduce the transformation risk, reduce the cost and save the construction period under the condition of effectively ensuring the historical landscape.
Description
Technical Field
The invention relates to a construction method for retaining historical landscapes and civil-improvement commercial building structure supports, and belongs to the technical field of building construction.
Background
The historical buildings are non-renewable resources in cities, bear the common memory of residents of one generation, record the development process of the cities and are unique marks in the cities. With the pull-out of the modern buildings, the cities have changed from time to time, the historical buildings which are used for years for salutation are damaged day by day, even if repairing and protecting are carried out, the value of living is lost gradually, and for the historical building purchasers, the historical landscapes of the historical buildings are kept, the social history and cultural resources are continued and inherited, the commercial use value is increased, and the urban building refinishing is played in new cities.
In the historical building reconstruction construction, particularly the civil-reconstruction commercial construction, the original residential building is reconstructed into a hall form to be used as a commercial house on the premise of keeping the external walls around the historical landscape, the construction difficulty is to demolish the internal structure on the premise of keeping the original external walls, and therefore the supporting method of the external walls is particularly important in the construction process.
At present, the traditional supporting method adopted by the civil-engineering and commercial-improvement construction of historical buildings is steel sheet pile supporting, and the concrete method is that the steel sheet piles are driven into the ground to a sufficient depth, the steel sheet piles are lengthened through welding, the steel sheet piles are erected along a wall body, and the wall body is supported. The steel sheet pile support needs a large amount of steel sheet piles to enter a field, so that the using time is short, the leasing cost and the purchasing cost are equivalent, and the support cost is very high. In addition, because a large-sized vibrating pile driver or an excavator is used for driving the supporting frame into the ground during supporting, the field is limited, and particularly when the terrain in a field area is complex, large-sized machines in partial areas cannot enter the field, and only manual burying can be carried out, so that the construction progress is slow. In addition, because the foundation is exposed by excavating the outer side of the building when the steel sheet piles are buried, the underground condition changes more, the arrangement of old pipelines is complicated and cannot be determined, so that certain danger exists, the construction difficulty is greatly increased, and even the construction cannot be carried out.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the construction method for retaining the historical landscape civil-improvement commercial building structure support, which can reduce the transformation danger, reduce the cost and save the construction period under the condition of effectively ensuring the historical landscape.
The technical scheme adopted by the invention for solving the technical problems is as follows: a construction method for retaining a support of a historical landscape civil-improvement commercial building structure comprises the following steps: the frame columns are arranged in pairs in front of opposite wall bodies in the building, and each frame column and the original wall body form a counterfort effect; mounting a steel truss on the top of each pair of frame columns, and integrally forming a plant type supporting system; and arranging an independent foundation below the frame columns, reserving beam ribs and plate ribs, completely removing the interior of the support system after the support system is built, and connecting the independent foundations of all the frame columns into a raft foundation.
Compared with the prior art, the construction method for retaining the historical landscape civil-improvement commercial building structure support utilizes the frame columns with reinforcement design as one part of the wall body support, the support strength of the frame columns is far higher than that of the traditional steel sheet pile support, the outer wall can be effectively prevented from collapsing after the internal structure is dismantled, partial extra support measures are omitted, the risk of transformation in other traditional modes is reduced under the condition that the historical landscape is effectively ensured, the success rate of historical landscape protection is improved, materials are saved on the support, the cost is reduced, the reinforcement safety is ensured, the construction period is shortened, and potential safety hazards are reduced.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a block flow diagram of one embodiment of the present invention.
FIG. 2 is a partial construction effect diagram in one embodiment of the present invention.
FIG. 3 is a diagram illustrating the overall construction effect of one embodiment of the present invention.
Fig. 4 is a schematic structural view of the frame post and the steel truss in fig. 2 or 3.
In the figure, 11, an original wall body, 21, a steel truss, 211, a throwing support, 212, a stressed beam, 213, a vertical rod, 22 and a frame column.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.
Fig. 1 to 4 are schematic structural views illustrating a preferred embodiment of the present invention, and a construction method of a structural support of a civil-modification business structure with historical features retained in fig. 1 includes the following steps:
step S101, constructing an internal frame column: arranging the frame columns in pairs in front of opposite walls in the building, wherein each frame column and the original wall form a counterfort effect (see fig. 3);
step S104, building a steel truss support: mounting a steel truss on the top of each pair of frame columns to form a plant house type supporting system (see fig. 2 and 3);
step S106, dismantling the internal structure: after the steel truss is supported, the outer wall is effectively supported, the existing civil structure in the building can be dismantled, and only the peripheral outer wall of the building is reserved;
and S107, arranging independent foundations below the frame columns, reserving beam ribs and slab ribs, completely removing the interiors after the support system is built, and connecting the independent foundations of all the frame columns into a raft foundation.
Through the steps, the frame columns and the steel trusses which are constructed in front of and between the original wall bodies are as high as the existing building, and after the frame columns and the steel trusses form the steel trusses, the frame columns and the steel trusses are directly connected with the beam plates in the later period into a whole to form the internal frame structure building. Equivalently, the peripheral outer wall is reserved, a reinforced concrete cage is placed inside the outer wall, the appearance is reserved, and the structure is reinforced. Therefore, effective support is built for the outer wall before the outer wall is dismantled, and the safety of the construction process and the stability of the outer wall after the inner structure is dismantled are guaranteed.
Further, referring to fig. 1, the reconstruction process implemented based on the support construction method of the embodiment may further include the following steps:
step S102, embedding a support: when the counterfort effect is constructed, the embedded parts of the steel truss are embedded into the columns and used for installing the steel truss, as shown in figure 1.
Step S108, rebuilding an internal framework structure: and after the frame is dropped, an internal commercial frame system is rebuilt, the structural transformation and reinforcement are completed, and the original historical appearance is kept.
As shown in fig. 1, before step S104 of this embodiment, step S103 may be further included, in which a steel truss is fabricated on site: and after the construction of the frame column is finished, manufacturing the steel truss, and selecting a frame body to manufacture on site. And S104, after the manufacturing is finished, the steel truss support can be formed by installing the steel truss support on the frame column in a hoisting mode, and the supporting construction of the outer wall is finished.
As the first frame post of being under construction, its concrete structure can have a variety, and this embodiment provides an optional concrete implementation way is that the frame post can be ordinary reinforced concrete post, when the post ties up the muscle, can also set up as required and wear wall drawknot muscle, makes post and wall drawknot as an organic whole.
Referring to fig. 4, the steel truss is formed by connecting stress beams, vertical rods and a throwing support, wherein the two stress beams are connected between a pair of frame columns in an up-down parallel manner, the vertical rods are vertically connected between the adjacent stress beams, and the throwing support is connected between the head and the tail of the adjacent two vertical columns. When the stressed beam is supported, the stressed beam is mainly used for bearing natural loads such as self load of a wall body, external wind load and the like; the upright stanchions and the throwing supports can increase the integral supporting capacity of the steel truss, so that the steel truss is in a more stable state, and the supporting capacity of the steel truss is increased. Further, the preferred practice of this embodiment is that the throwing support is arranged on the stressed beam in an end-to-end manner in sequence. The upright rods are uniformly arranged on the stress beam at intervals.
The concrete structure of the steel truss that makes can be diversified, and this embodiment provides an optional concrete implementation, the steel truss is formed by the combination welding of I-steel or I-steel and square steel, for example, the I-steel is selected for the atress roof beam, and the square steel is selected for the pole setting and throwing to prop, or all select for the I-steel.
The original red brick building is built by red bricks without constructional columns, and is based on changing the civil residential building into a business, so that the appearance is kept, the interior is completely dismantled, and only peripheral outer walls are left. In order to complete internal reinforcement construction for the integrity of the external wall on site, the construction method of the embodiment of the invention is selected as follows: the reinforcing mode is that the concrete beam slab columns are reset inside, the original residential pattern is changed into a commercial hall mode, and all frame columns added with the internal partition walls are omitted to support the beam slabs. Specifically, the frame column leaning against the circle of the red brick outer wall is a part of internal reinforcement, the column is constructed firstly for supporting the wall body, a wall attaching effect is formed, the outer wall is supported, the outer wall is prevented from collapsing after the internal structure is dismantled, the frame column and the reinforced beam plate are connected into a whole when the internal reinforcement is carried out, and an internal concrete reinforcing structure is formed. The supporting of the outer wall is completed by utilizing the frame columns with the internal structures, and after the supporting is completed, the buttress columns (namely the frame columns with the buttress effect) are automatically converted into internal reinforcing structures, so that extra measure materials like steel plate brick materials are saved. In addition, because the support strength of the frame column is far higher than that of a steel sheet pile support, if the steel sheet pile is used, the steel sheet pile is expected to be arranged every 1-2 meters to ensure the stability of the wall body, the buttress column is of a reinforced concrete structure and can be connected with the outer wall into a whole, not only supports but also ties are arranged, and the wall body can be supported by arranging the buttress column within 10 meters of the support outer wall. And, the designer is in the interval that calculates each frame post to the stability of structure, can guarantee stable in structure, and secondly, after the building reinforcement is accomplished, inside is directly the hall form, and each frame post symmetry design is pleasing to the eye.
In summary, the construction method provided by the embodiment of the invention is mainly characterized in that the peripheral outer walls of the building can be effectively reserved when the internal structure of the building is dismantled, and the original historical appearance is reserved. The frame column is constructed firstly, then the steel truss is adopted for supporting, the internal structure is dismantled, the construction sequence of the internal structure is rebuilt, and the rebuilding of the whole building is completed. The construction method reduces the risk of transformation in other traditional modes under the condition of effectively ensuring the historical landscape, improves the effect of historical landscape protection, saves materials on support, reduces the cost, ensures the construction quality of reinforcement, saves the construction period and reduces the potential safety hazard.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiment according to the technical spirit of the present invention are included in the protection scope of the present invention.
Claims (8)
1. A construction method for retaining the support of a historical landscape civil-improvement commercial building structure is characterized by comprising the following steps: the frame columns are arranged in pairs in front of opposite wall bodies in the building, and each frame column and the original wall body form a counterfort effect; mounting a steel truss on the top of each pair of frame columns, and integrally forming a plant type supporting system; and arranging an independent foundation below the frame columns, reserving beam ribs and plate ribs, completely removing the interior of the support system after the support system is built, and connecting the independent foundations of all the frame columns into a raft foundation.
2. The construction method for retaining the support of the historical geomorphic civil improvement business building structure according to claim 1, wherein the steel truss is formed by connecting stress beams, vertical rods and throwing supports, at least two stress beams are connected between a pair of frame columns in an up-down parallel mode, a plurality of vertical rods are vertically connected between adjacent stress beams, and the throwing supports are connected between the heads and the tails of two adjacent vertical columns.
3. The construction method for retaining the support of the historical landscape civil-reform commercial building structure according to claim 3, wherein the cast supports are arranged on the stressed beam in an end-to-end manner in sequence, and a plurality of vertical rods are uniformly arranged on the stressed beam at intervals.
4. The construction method for retaining the historical landscapes, civil improvement commercial building structure support according to claim 1, wherein the steel truss is formed by welding I-steel or a combination of I-steel and square steel.
5. The construction method for retaining the support of the historical geomorphic civil improvement business building structure according to claim 1, 2 or 3, characterized by further comprising embedding a support: when the counterfort effect is constructed, the embedded parts of the steel truss are embedded into the columns and used for installing the steel truss.
6. The construction method for retaining the support of the historical geomorphic civil improvement business building structure according to claim 1, 2 or 3, wherein the forming the buttress effect comprises: the frame column is tied with the original wall body in a rib planting mode in the construction process.
7. The construction method for retaining the support of the historical geomorphic civil improvement merchant building structure according to claim 1, 2 or 3, characterized by further comprising: and after the construction of the frame column is finished, the steel truss is manufactured on site, and the steel truss is installed on the frame column in a hoisting mode after the manufacture is finished.
8. The construction method for retaining the support of the historical geomorphic civil improvement merchant building structure according to claim 1, 2 or 3, characterized by further comprising: after the support system is built, the existing buildings in the building are dismantled one by one, and the internal frame system is rebuilt after the building is dropped.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111557393.2A CN114482594A (en) | 2021-12-19 | 2021-12-19 | Construction method for retaining support of historical landscape civil-improvement commercial building structure |
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| CN202111557393.2A CN114482594A (en) | 2021-12-19 | 2021-12-19 | Construction method for retaining support of historical landscape civil-improvement commercial building structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115030556A (en) * | 2022-07-20 | 2022-09-09 | 中国建筑第二工程局有限公司 | Method for repairing and reinforcing exposed brick exterior wall old building |
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| CN115030556A (en) * | 2022-07-20 | 2022-09-09 | 中国建筑第二工程局有限公司 | Method for repairing and reinforcing exposed brick exterior wall old building |
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