CN111270872A - Wood structure jacking method and jacking device - Google Patents
Wood structure jacking method and jacking device Download PDFInfo
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- CN111270872A CN111270872A CN202010219346.6A CN202010219346A CN111270872A CN 111270872 A CN111270872 A CN 111270872A CN 202010219346 A CN202010219346 A CN 202010219346A CN 111270872 A CN111270872 A CN 111270872A
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- jacking
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- reinforced concrete
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- timber structure
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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
- E04G23/06—Separating, lifting, removing of buildings; Making a new sub-structure
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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
- E04G23/06—Separating, lifting, removing of buildings; Making a new sub-structure
- E04G23/065—Lifting of buildings
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention provides a wood structure jacking method and a jacking device, wherein the wood structure jacking device comprises: reinforced concrete clamp splice, isolation layer and top support girder steel. Utilize reinforced concrete parcel column foundation, form the reinforced concrete clamp splice, and then carry out the jacking to the top support girder steel that runs through the reinforced concrete clamp splice, can realize utilizing reinforced concrete clamp splice centre gripping column foundation to carry out the jacking indirectly, avoided directly perforating on the post, effectively protected the post. And then accomplish the jacking back, can demolish the reinforced concrete clamp splice, the setting of isolation layer can effectively protect the column foundation can not adhere with the concrete, demolish the reinforced concrete clamp splice after, can make the column foundation remain original appearance.
Description
Technical Field
The invention relates to the technical field of historic building protection, in particular to a wood structure jacking method and a jacking device.
Background
In recent years, with the further development of planning work of various major and middle cities, the transformation speed of old cities is also increased, and buildings with historical protection values or use values are often encountered in the transformation, so that city planning is influenced. The traditional main means for solving the problem is forced demolition, and once demolition is carried out on some historical protection buildings, the loss brought to the nation and people is immeasurable. Since the 90 s in the 20 th century, the building displacement transformation technology is applied in China, so that historical buildings and buildings with continuous use values are protected, remarkable economic benefits, social benefits and environmental protection benefits are obtained, a new technical means is provided for transformation of old cities, and the historical buildings are well protected. The ancient architecture of our country is generally the timber structure, need carry out the translation jacking to it when shifting, generally adopt in the past to the wooden pillar adopt the steel splint, and carry out the method of underpinning to wearing with the bolt, this kind of method has certain damage to the wooden pillar, hinders the protection of historical protection ancient architecture historical relic.
Disclosure of Invention
The invention aims to provide a jacking method and a jacking device for a wood structure, and aims to solve the problem that a wood column is easily damaged when a wood structure building is jacked in the prior art.
In order to solve the technical problem, the invention provides a wood structure jacking method, which is suitable for a wood structure building with a column foundation, and the wood structure jacking method comprises the following steps:
the method comprises the following steps: wrapping the column foundation with an isolation layer;
step two: surrounding the column foundation formwork, embedding a reinforcement cage and a jacking steel beam penetrating through and extending out of the formwork in the formwork;
step three: pouring concrete in the template, and forming a reinforced concrete clamping block wrapping the column foundation when the concrete reaches the design strength;
step four: and jacking the jacking steel beam to realize jacking of the wood structure building.
Optionally, in the second step and the third step, the reinforcement cage and the concrete are divided into at least two separable parts, so that the formed reinforced concrete clamp block includes at least two separable sub-clamp blocks.
Optionally, before the fourth step, the wooden structure jacking method further includes: and limiting the displacement between all the sub-clamping blocks by using a locking piece so as to form all the sub-clamping blocks into a whole.
Optionally, the wooden structure jacking method further includes:
step five: and after jacking is completed, releasing the limitation of the locking piece on the sub-clamping blocks, and separating the sub-clamping blocks.
In order to solve the above technical problem, the present invention further provides a timber structure jacking device, which is suitable for timber structure buildings with column foundations, and the timber structure jacking device includes:
the reinforced concrete clamping block comprises an inner hole matched with a column foundation, and the inner hole is used for accommodating the column foundation;
the isolation layer is arranged on the inner wall of the inner hole and used for isolating the reinforced concrete clamping block from the column foundation; and
the jacking steel beam penetrates through the reinforced concrete clamping block along the horizontal direction;
the wood structure jacking device is used for jacking the wood structure building by using the wood structure jacking method.
Optionally, the reinforced concrete clamping block comprises at least 2-4 sub-clamping blocks, wherein each sub-clamping block comprises a part of side wall forming the inner hole, and the side wall of each sub-clamping block is not larger than half of the circumference of the inner hole.
Optionally, timber structure jacking device still includes: each through hole penetrates through at least two sub-clamping blocks, and one through hole is formed between each sub-clamping block and at least one other adjacent sub-clamping block; the number of the locking pieces is equal to that of the through holes, one locking piece penetrates through each through hole, and the locking pieces are used for limiting the displacement between the corresponding penetrating sub-clamping blocks.
Optionally, the number of the jacking steel beams is not less than that of the sub-clamping blocks, and at least one jacking steel beam penetrates through each sub-clamping block.
Optionally, timber structure jacking device still includes two at least perforating holes and locking piece, the direction of setting of top support girder steel with the direction of setting of perforating hole and locking piece is arranged at an angle.
Optionally, the height of the reinforced concrete clamping block is greater than half of the height of the column foundation, and the bottom of the reinforced concrete clamping block is flush with the bottom of the column foundation.
In summary, in the wood structure jacking method and the jacking device provided by the invention, the wood structure jacking device comprises: reinforced concrete clamp splice, isolation layer and top support girder steel. Utilize reinforced concrete parcel column foundation, form the reinforced concrete clamp splice, and then carry out the jacking to the top support girder steel that runs through the reinforced concrete clamp splice, can realize utilizing reinforced concrete clamp splice centre gripping column foundation to carry out the jacking indirectly, avoided directly perforating on the post, effectively protected the post. And then accomplish the jacking back, can demolish the reinforced concrete clamp splice, the setting of isolation layer can effectively protect the column foundation can not adhere with the concrete, demolish the reinforced concrete clamp splice after, can make the column foundation remain original appearance.
Drawings
It will be appreciated by those skilled in the art that the drawings are provided for a better understanding of the invention and do not constitute any limitation to the scope of the invention. Wherein:
fig. 1 is a schematic vertical sectional view of a jacking apparatus for a wooden structure according to a preferred embodiment of the present invention;
fig. 2 is a schematic plan view of a jacking apparatus for a wooden structure according to a preferred embodiment of the present invention;
fig. 3 is a schematic plan view of a jacking apparatus for a wooden structure according to another preferred embodiment of the present invention;
fig. 4 is a flow chart of a method for jacking a wooden structure according to a preferred embodiment of the present invention.
In the drawings:
10-a reinforced concrete clamp block; 100-inner hole; 11-a sub-clamping block; 20-an isolation layer; 30-jacking the steel beam; 40-a locking element; 7-a wood column; 8-column foundation.
Detailed Description
To further clarify the objects, advantages and features of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. It is to be noted that the drawings are in greatly simplified form and are not to scale, but are merely intended to facilitate and clarify the explanation of the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently.
As used in this specification, the singular forms "a," "an," and "the" include plural referents unless the content clearly dictates otherwise. As used in this specification, the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise.
The invention provides a jacking method and a jacking device for a wood structure, and aims to solve the problem that a wood column is easily damaged when a wood structure building is jacked in the prior art.
Different from the ancient building of west, the ancient building of china is the timber structure building mainly, and it mainly adopts the timber column bearing, and prior art is for protecting the ancient building, often needs to punch the whole jacking of timber column and translation for this reason, often needs to punch in the bottom of timber column, after accomplishing the jacking translation, can leave the hole of beating promptly, causes the destruction to the ancient building. Generally, in order to prevent the bottom of a wood column from being affected with damp and rotten, a column foundation is arranged at the bottom of the wood column, and the column foundation is generally in a drum shape made of stones. The inventor finds that the drum-shaped column foundation can be used for indirectly jacking the wooden building, so that the loss caused by jacking translation of the ancient building is avoided. Based on the above findings, the present invention provides a method and a device for jacking a wooden structure, which are described below with reference to the accompanying drawings.
Referring to fig. 1 to 4, fig. 1 is a schematic vertical sectional view of a jacking device for a wooden structure according to a preferred embodiment of the present invention, fig. 2 is a schematic plan view of the jacking device for a wooden structure according to a preferred embodiment of the present invention, fig. 3 is a schematic plan view of the jacking device for a wooden structure according to another preferred embodiment of the present invention, and fig. 4 is a flowchart of a jacking method for a wooden structure according to a preferred embodiment of the present invention.
As shown in fig. 4, a preferred embodiment of the present invention provides a timber structure jacking method, which is suitable for timber structure buildings with column foundations, and the timber structure jacking method includes:
step one S1: wrapping the column foundation with an isolation layer;
step two S2: surrounding the column foundation formwork, embedding a reinforcement cage and a jacking steel beam penetrating through and extending out of the formwork in the formwork;
step three S3: pouring concrete in the template, and forming a reinforced concrete clamping block wrapping the column foundation when the concrete reaches the design strength;
step four S4: and jacking the jacking steel beam to realize jacking of the wood structure building.
By the method, the column foundation is wrapped by the reinforced concrete to form the reinforced concrete clamping block, so that the jacking steel beam penetrating through the reinforced concrete clamping block is jacked, the column foundation can be jacked indirectly by clamping the reinforced concrete clamping block, direct perforation on the wood column is avoided, and the wood column is effectively protected. And then accomplish the jacking back, can demolish the reinforced concrete clamp splice, the setting of isolation layer can effectively protect the column foundation can not adhere with the concrete, demolish the reinforced concrete clamp splice after, can make the column foundation remain original appearance.
Further, in the second step S2 and the third step S3, the reinforcement cage and the concrete are divided into at least two separable parts, so that the formed reinforced concrete clamp block includes at least two separable sub-clamp blocks. Due to the configuration, the reinforced concrete clamping block can be conveniently detached after jacking translation is completed.
Further, before the step four S4, the method for jacking a wooden structure further includes: and limiting the displacement between all the sub-clamping blocks by using a locking piece so as to form all the sub-clamping blocks into a whole. In order to ensure that the sub-clamping blocks cannot be scattered during jacking, all the sub-clamping blocks can be locked into a whole by using the locking piece.
Optionally, the wooden structure jacking method further includes: step five: and after jacking is completed, releasing the limitation of the locking piece on the sub-clamping blocks, and separating the sub-clamping blocks. The locking member is preferably removable so that after the jacking translation is completed, it can be easily removed to remove the restriction on each sub-block, thereby facilitating the removal of each sub-block.
Referring to fig. 1 and fig. 2, in order to implement the above-mentioned timber structure jacking method, the present embodiment further provides a timber structure jacking device, which is suitable for timber structure buildings with column foundations 8. In general, a wood structure building includes a wood column 7 and a column base 8 provided at the bottom of the wood column 7. Timber structure jacking device includes: reinforced concrete clamp blocks 10, isolation layers 20, and jacking steel beams 30. The reinforced concrete clamping block 10 comprises an inner hole 100 matched with a column foundation 8, and the inner hole 100 is used for accommodating the column foundation 8; the isolation layer 20 is arranged on the inner wall of the inner hole 100 and used for isolating the reinforced concrete clamping block 10 from the column foundation 8; the jacking steel beam 30 penetrates through the reinforced concrete clamping block 10 along the horizontal direction; the wood structure jacking device is used for jacking the wood structure building by using the wood structure jacking method.
Optionally, the height of the reinforced concrete clamp block 10 is greater than half of the height of the column foundation 8, and the bottom of the reinforced concrete clamp block 10 is flush with the bottom of the column foundation 8. Because the column foundation 8 is generally drum-shaped, and the vertical section of the column foundation is generally arc-shaped with the middle part protruding outwards, in order to ensure that the reinforced concrete clamping block 10 can effectively support the column foundation 8, the reinforced concrete clamping block 10 needs to have a certain thickness. And in order to produce better parcel performance to column foundation 8 after the jacking, avoid column foundation 8 to deviate from, need guarantee that reinforced concrete clamp splice 10 highly be greater than the half of the height of column foundation 8, so can wrap up the biggest external diameter part of column foundation 8 for column foundation 8 can the gomphosis in reinforced concrete clamp splice 10, at the in-process improvement stability of jacking translation.
Preferably, the reinforced concrete clamping block 10 comprises 2-4 sub-clamping blocks 11, wherein each sub-clamping block 11 comprises a part of a side wall forming the inner hole 100, and the side wall of each sub-clamping block 11 is not larger than a half circumference of the inner hole 100. As shown in fig. 2, in an exemplary embodiment, the reinforced concrete clamping block 10 includes two sub-clamping blocks 11, and each of the two sub-clamping blocks 11 includes a half-circumferential sidewall of the inner hole 100, so that the two sub-clamping blocks 11 can be easily disassembled. Of course, the number of the sub-clamping blocks 11 is not limited to two, and in other embodiments, the reinforced concrete clamping block 10 may include a larger number of sub-clamping blocks 11, for example, fig. 3 shows another preferred embodiment providing a wooden structure jacking device, which includes 3 sub-clamping blocks 11, each of which includes 1/3 side walls of the inner hole 100, so that when the sub-clamping blocks 11 are detached, the sub-clamping blocks 11 are not affected by the friction of the column foundation 8, and are more convenient to detach. Of course, when the number of the sub-clamping blocks 11 is too large, the assembly and disassembly are not convenient, so that the number of the sub-clamping blocks 11 is preferably not more than 4. It is understood that when the number of the sub-clamping blocks 11 is 3 or 4, the size and the shape of each sub-clamping block 11 may be the same or different. In particular, the side walls of the inner bores 100 included in each sub-clamping block 11 are not limited to the same length. When the number of the sub-clamping blocks 11 is two, the lengths of the side walls of the inner holes 100 included in the two sub-clamping blocks 11 are the same, namely, the side walls of the inner holes 100 in the half-cycle are included respectively, so that the situation that one sub-clamping block 11 includes the side wall larger than the inner hole 100 in the half-cycle is avoided, and the situation that the sub-clamping block is difficult to detach after jacking is completed is avoided.
Further, timber structure jacking device still includes: at least two through holes and a locking piece 40, wherein each through hole at least penetrates through two sub-clamping blocks 11, and one through hole is arranged between each sub-clamping block 11 and at least one other adjacent sub-clamping block 11; the number of the locking pieces 40 is equal to the number of the through holes, one locking piece 40 is arranged in each through hole in a penetrating mode, and the locking pieces 40 are used for limiting displacement between the corresponding penetrating sub-clamping blocks 11. Preferably, the locking member 40 comprises a bolt and a nut; preferably, the through hole includes an embedded sleeve. Set up the perforating hole between sub-clamp splice 11 to wear to establish locking piece 40, can be effectively with each sub-clamp splice 11 locking as a whole, the jacking of being convenient for. In practice, the through holes can be formed by pre-embedding sleeves in the formwork before concrete is poured, and the through holes are formed by pre-embedding the sleeves after the reinforced concrete clamping blocks are formed. And the bolt and the nut of the locking piece 40 can be conveniently disassembled and assembled, and the locking effect is good. Of course, those skilled in the art can select other locking members, such as a large clamp inserted into the through hole, according to actual and field conditions, but the invention is not limited thereto.
Preferably, the number of the jacking steel beams 30 is not less than the number of the sub-clamping blocks 11, and at least one jacking steel beam 30 penetrates through each sub-clamping block 11. In order to ensure that all the sub-clamping blocks 11 are stressed evenly, at least one jacking steel beam 30 penetrates through each sub-clamping block 11. When the jacking is actually carried out, all jacking steel beams 30 can be synchronously jacked, and the locking piece 40 is prevented from being damaged due to too large shearing force. Optionally, the jacking steel beam 30 is an i-shaped steel beam, and two ends of the i-shaped steel beam extend out of the sub-clamping blocks 11 penetrated by the i-shaped steel beam to allow the jacking device (such as a jack) to operate.
Preferably, each jacking steel beam 30 only passes through one sub-clamping block 11. More preferably, the installation direction of the steel jacking beam 30 and the installation direction of the through hole and the locking member 40 are arranged at an angle. Since the through hole and the locking member 40 penetrate through at least two sub-clamping blocks 11, in order to facilitate installation and removal of the respective sub-clamping blocks 11, it is preferable that the installation direction of the jacking steel beams 30 is arranged at an angle to the installation direction of the through hole and the locking member 40 so that each jacking steel beam 30 penetrates through only one sub-clamping block 11. Therefore, after the jacking is completed, the sub-clamping blocks 11 can be conveniently detached along different directions. It should be understood that the number of jacking steel beams 30 in one sub-clamping block 11 is not limited herein.
Optionally, the isolation layer includes: at least one of a rigid plastic, a plastic film, and a barrier coating. The setting of isolation layer can separate reinforced concrete clamp splice and column foundation effectively for when detaching the reinforced concrete clamp splice, can not cause the influence to the original appearance of column foundation. Those skilled in the art can select a suitable separating layer according to the actual application.
In summary, in the wood structure jacking method and the jacking device provided by the invention, the wood structure jacking device comprises: reinforced concrete clamp splice, isolation layer and top support girder steel. Utilize reinforced concrete parcel column foundation, form the reinforced concrete clamp splice, and then carry out the jacking to the top support girder steel that runs through the reinforced concrete clamp splice, can realize utilizing reinforced concrete clamp splice centre gripping column foundation to carry out the jacking indirectly, avoided directly perforating on the post, effectively protected the post. And then accomplish the jacking back, can demolish the reinforced concrete clamp splice, the setting of isolation layer can effectively protect the column foundation can not adhere with the concrete, demolish the reinforced concrete clamp splice after, can make the column foundation remain original appearance.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (10)
1. A timber structure jacking method is suitable for timber structure buildings with column foundations, and is characterized by comprising the following steps:
the method comprises the following steps: wrapping the column foundation with an isolation layer;
step two: surrounding the column foundation formwork, embedding a reinforcement cage and a jacking steel beam penetrating through and extending out of the formwork in the formwork;
step three: pouring concrete in the template, and forming a reinforced concrete clamping block wrapping the column foundation when the concrete reaches the design strength;
step four: and jacking the jacking steel beam to realize jacking of the wood structure building.
2. The method for jacking up a wooden structure as claimed in claim 1, wherein, in the second step and the third step, the reinforcement cage and the concrete are divided into at least two separable parts, so that the formed reinforced concrete clamp block comprises at least two separable sub-clamp blocks.
3. The method of jacking a wooden structure as claimed in claim 2, wherein before the fourth step, the method of jacking a wooden structure further comprises: and limiting the displacement between all the sub-clamping blocks by using a locking piece so as to form all the sub-clamping blocks into a whole.
4. The timber structure jacking method according to claim 3, further comprising:
step five: and after jacking is completed, releasing the limitation of the locking piece on the sub-clamping blocks, and separating the sub-clamping blocks.
5. The utility model provides a timber structure jacking device, is applicable to the timber structure building that has the column foundation, its characterized in that includes:
the reinforced concrete clamping block comprises an inner hole matched with a column foundation, and the inner hole is used for accommodating the column foundation;
the isolation layer is arranged on the inner wall of the inner hole and used for isolating the reinforced concrete clamping block from the column foundation; and
the jacking steel beam penetrates through the reinforced concrete clamping block along the horizontal direction;
the timber structure jacking device is used for jacking a timber structure building by using the timber structure jacking method according to any one of claims 1 to 4.
6. The timber structure jacking device of claim 5, wherein the reinforced concrete clamp blocks include at least 2-4 sub clamp blocks, wherein each of the sub clamp blocks includes a portion of a side wall forming the inner bore, and each of the sub clamp blocks includes a side wall no greater than half of the circumference of the inner bore.
7. The timber structure jacking device of claim 6, further comprising: each through hole penetrates through at least two sub-clamping blocks, and one through hole is formed between each sub-clamping block and at least one other adjacent sub-clamping block; the number of the locking pieces is equal to that of the through holes, one locking piece penetrates through each through hole, and the locking pieces are used for limiting the displacement between the corresponding penetrating sub-clamping blocks.
8. The timber structure jacking device of claim 6, wherein the number of the jacking steel beams is not less than the number of the sub-clamping blocks, and at least one jacking steel beam is arranged in each sub-clamping block in a penetrating manner.
9. The timber structure jacking device of claim 5, further comprising at least two through holes and locking pieces, wherein the direction of the jacking steel beam is arranged at an angle to the direction of the through holes and the locking pieces.
10. The timber structure jacking device of claim 5, wherein the reinforced concrete clamp block has a height for more than half of the height of the column foundation, and a bottom of the reinforced concrete clamp block is for being flush with the bottom of the column foundation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010219346.6A CN111270872A (en) | 2020-03-25 | 2020-03-25 | Wood structure jacking method and jacking device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010219346.6A CN111270872A (en) | 2020-03-25 | 2020-03-25 | Wood structure jacking method and jacking device |
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| CN111270872A true CN111270872A (en) | 2020-06-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114059658A (en) * | 2020-08-04 | 2022-02-18 | 上海市园林工程有限公司 | Construction method of overweight big wood structure vertical frame in historic building reconstruction and restoration |
-
2020
- 2020-03-25 CN CN202010219346.6A patent/CN111270872A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114059658A (en) * | 2020-08-04 | 2022-02-18 | 上海市园林工程有限公司 | Construction method of overweight big wood structure vertical frame in historic building reconstruction and restoration |
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