CN209620328U - A kind of prestressing force cob wall - Google Patents
A kind of prestressing force cob wall Download PDFInfo
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- CN209620328U CN209620328U CN201920168136.1U CN201920168136U CN209620328U CN 209620328 U CN209620328 U CN 209620328U CN 201920168136 U CN201920168136 U CN 201920168136U CN 209620328 U CN209620328 U CN 209620328U
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- prestressing force
- wall
- rammed earth
- inner sleeve
- steel
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Abstract
A kind of prestressing force cob wall, belong to construction engineering technical field, including a set of above prestressing force component, ground beam, rammed earth and collar tie beam, the ground beam is located at wall bottom, the rammed earth is located at the top of ground beam, the collar tie beam is located at rammed earth top, and a set of above prestressing force component is arranged inside ground beam, rammed earth and collar tie beam；Prestressing force component includes outer tube, spring, bottom plate, upper head plate, inner sleeve and deformed bar.The a part of the utility model using the spring of large-diameter circular steel production as deformed bar, it solves the problems, such as that rammed earth elasticity modulus of materials is too low to cause to deform loss of prestress that is excessive and generating, lasting vertical compressive pre-stress is established in the wall of cob, biggish deformation is even generated under the conditions of low elastic modulus, loss of prestress will not be very much, to which the anti-seismic performance and endurance quality of rammed earth wall be effectively ensured, effective technical quality guarantee is provided for the application of cob.
Description
Technical field
The utility model belongs to construction engineering technical field, is related to the construction of earth building wall, especially relates to
A kind of prestressing force cob wall.
Background technique
Currently, still having more than 1/3 inhabitants live in the world in the house that the raw-soil is built.Rammed earth is normal as earth building
The application mode seen is generally used in building in ancient times, rammed earth mode is widely applied to build if Qin Changcheng.Modern architecture is general
All over steel, cement, the sintered brick and tile etc. used, all seriously destroy ecological environment in process of production, and cement products and
Degradation speed is slow in the natural environment for sintered brick and tile etc., seriously pollutes environment.However, the time immemorial either fallen behind in production method
Epoch, still in this day and age, cob all have apparent ecological dominance: gather materials on the spot, without deep processing to saving
Production and transport energy consumption reduces environmental pollution；Earth wall for heat insulation heat-proof quality is good, can also adjust air humidity；The recyclable benefit of the raw-soil
With, or soil is directly returned, the influence to ecological environment is reduced to the maximum extent.
Cob all haves the defects that be difficult to overcome, wherein critically important one either in ancient times or in the modern times
Item is exactly that the elasticity modulus of rammed earth wall is lower, only the 1/50~1/100 of concrete, and later period deformation is larger；There are also be exactly by
It is lower in its shearing strength, so that its anti-seismic performance is poor.
Utility model patent CN201943217U is authorized, a kind of built-in netting rammed earth wall belongs to the civil engineering raw-soil and builds
Build component technology field, and in particular to a kind of built-in netting rammed earth wall.The wall includes loam wall, which is characterized in that In
Loam wall body is internally provided with an at least netting, and netting area therein is greater than cob wall bulk area, makes netting avris and other
Component is connected, with the globality of enhancing structure.The structure wall construction is simple, cheap, netting resists rammed earth wall
Shock stability improves significant.Obviously this is a kind of mode of the raising cob anti-seismic performance of passive type, and netting is in rammed earth
It is easily bent fold in the process, so that its effect can be significantly reduced.
Rejected application for a patent for invention file CN201510380826.X, prestressing force loam wall and its construction technology, relate to
And a kind of prestressing force loam wall and its construction technology, including wall, wall are loam wall wall, are provided with casing in wall, cover
Pipe is arranged along wall length direction, and runs through entire wall, is provided with deformed bar in casing, wall two sides are respectively arranged with
Screw thread is arranged in fixed plate, deformed bar both ends, and deformed bar both ends are each passed through two fixed plates, and pass through washer and lock
Tight nut is fixed with fixed plate.The patent application is that multiple groups prestressing force is arranged along loam wall short transverse in the loam wall soil body
Reinforcing bar, deformed bar is arranged along loam wall length direction, while being fixed by steel plate and loam wall two sides, give loam wall to
Interior extruding force effectively improves resistance to compression, the shear-carrying capacity of loam wall so that loam wall be made to be in multidirectional pressured state, can
The formation for effectively avoiding vertical straight joint significantly reduces the ratio of height to thickness of wall, under the premise of not increasing thickness of wall body, mentions
The masonry height of high wall.Problem both ways is at least deposited in the application for a patent for invention: it first, is to establish water for loam wall
Square to prestressing force, not equal to be for casing establish prestressing force, be not inconsistent with original intention；Second, due to the springform of rammed earth
It measures very low, the prestressing force of horizontal direction is even established in rammed earth wall, it also can be due to the compressive deformation of rammed earth quickly
It is lost totally, to lose its effect.
It is learnt from the shear-carrying capacity calculation formula and its principle of wall, to improve the shear-carrying capacity of wall, first is that
The Shear Strength Index of material is improved, second is that appropriateness increases the compressed stress of wall, in the Shear Strength Index of rammed earth wall
Under conditions of certain, the shearing strength of rammed earth wall, Jin Erti are only improved by way of increasing wall compressed stress
The anti-seismic performance of high rammed earth wall.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of prestressing force cob walls, in cob
Wall in establish lasting vertical compressive pre-stress, in order to solve, rammed earth elasticity modulus of materials is too low to be caused to deform excessive and generates
Loss of prestress problem, the spring that large-diameter circular steel is made is as a part of deformed bar, so that cob wall
Body even generates biggish deformation under the conditions of low elastic modulus, and loss of prestress will not be very much, so that rammer be effectively ensured
The anti-seismic performance of cob wall body.
A kind of prestressing force cob wall, it is characterized in that: include a set of above prestressing force component, ground beam, rammed earth and
Collar tie beam, the ground beam are located at wall bottom, and the rammed earth is located at the top of ground beam, and the collar tie beam is located at rammed earth top, and described one
The above prestressing force component is covered to be arranged inside ground beam, rammed earth and collar tie beam；
Every suit prestressing force component includes outer tube, spring, bottom plate, upper head plate, inner sleeve and prestressing force
Reinforcing bar, the outer tube are steel pipe；The inner sleeve inside of outer tube is set and go deep into 50mm inside outer tube~
500mm, inner sleeve pipe outside diameter are less than housing bore 0.5mm~5mm, and the top of inner sleeve is away from the tube top end position 50mm~100mm
Place is provided with steel partition, and steel partition outer profile size is greater than inner sleeve pipe outside diameter 50mm~100mm, and the center of steel partition is set
Having diameter is the hole of 12mm~40mm；The bottom plate is steel plate, is welded on the bottom of outer tube, bottom plate outer profile size
Greater than housing pipe outside diameter 50mm~100mm；The spring is arranged in interior inside pipe casing, and bottom is fixed on bottom plate,
Spring outer diameter is less than inner sleeve bore 0.5mm~5mm；The upper head plate is steel plate, and the top of spring, and outer profile ruler is arranged in
It is very little identical as spring outer diameter；The deformed bar setting is on upper head plate top, and top passes through the hole on steel partition.
A kind of prestressing force cob wall, it is characterized in that: the deformed bar is yield strength greater than 300MPa's
Reinforcing bar or fining twisted steel.
Through the above design, the utility model can be brought the following benefits: a kind of prestressing force cob wall
Body, a part using the spring of large-diameter circular steel production as deformed bar, it is too low to solve rammed earth elasticity modulus of materials
It causes to deform loss of prestress problem that is excessive and generating, lasting vertical compressive pre-stress is established in the wall of cob,
Biggish deformation is even generated under the conditions of low elastic modulus, loss of prestress will not be very much, so that rammed earth be effectively ensured
The anti-seismic performance and endurance quality of wall provide effective technical quality guarantee for the application of cob.
Detailed description of the invention
The utility model is further described below in conjunction with the drawings and specific embodiments:
Fig. 1 is the diagrammatic cross-section of the utility model inner sleeve.
Fig. 2 is the component elevational schematic view of the utility model spring, bottom plate, upper head plate and deformed bar.
Fig. 3 is the diagrammatic cross-section of the utility model outer tube.
Fig. 4 is the diagrammatic cross-section of the utility model prestressing force component.
Fig. 5 is the diagrammatic cross-section after the utility model ground beam completes.
Fig. 6 is the diagrammatic cross-section after the utility model loam wall completes.
Fig. 7 is the diagrammatic cross-section after the utility model collar tie beam completes.
Fig. 8 is the diagrammatic cross-section after the completion of the utility model prestressing force cob wall construction.
The basis 1-, 2- outer tube, 3- spring, 301- bottom plate, 302- upper head plate, 4- ground beam, 5- inner sleeve, 6- are pre- in figure
Stress reinforcing bar, 7- rammed earth, 8- collar tie beam, 9- prestressed anchor.
Specific embodiment
A kind of prestressing force cob wall, as shown in figure 8, include a set of above prestressing force component, ground beam 4, rammed earth 7 and
Collar tie beam 8；
Every suit prestressing force component, as shown in figure 4, including outer tube 2, spring 3, bottom plate 301, upper head plate
302, inner sleeve 5 and deformed bar 6；
The outer tube 2 is prepared as shown in Fig. 3~Fig. 8 using steel pipe, and internal diameter is greater than the outer diameter 0.5mm of inner sleeve 5
~5mm, and bottom is connect with bottom plate 301；
The inner sleeve 5, as shown in Figure 1, being prepared using steel pipe and going deep into 50mm~500mm inside outer tube, outer diameter
Less than internal diameter 0.5mm~5mm of outer tube 2, internal diameter is greater than outer diameter 0.5mm~5mm of upper head plate 302, on distance from top top
The steel partition that the setting of the position 50mm~100mm is an integral structure with inner sleeve 5, the outer profile size of steel partition are greater than interior
Outer diameter 50mm~100mm of casing 5, the center of steel partition are equipped with the hole of diameter 12mm~40mm；
The bottom plate 301, as shown in Fig. 2, being prepared using steel plate, outer profile size is greater than the outer diameter of outer tube 2
50mm~100mm；
The upper head plate 302, as shown in Fig. 2, prepared using steel plate, outer diameter be less than the internal diameter 0.5mm of inner sleeve 5~
5mm, top are connect with deformed bar 6；
The spring 3, as shown in Fig. 2, diameter is used to prepare for the round steel of 12mm~25mm, outer diameter is less than inner sleeve 5
Internal diameter 0.5mm~5mm, and bottom is connect with bottom plate 301, and top is connect with upper head plate 302；
The deformed bar 6 is greater than the reinforcing bar or finish rolling screw thread of 300MPa for yield strength as shown in Figure 2 and Figure 8
Steel, the top of deformed bar 6 are provided with prestressed anchor 9；
The ground beam 4 is prepared as shown in Fig. 5~Fig. 8 using armored concrete, and the bottom of wall is set to；The rammed earth
7, as shown in Figure 6 to 8, preparation is manually or mechanically tamped after admixing aggregate using plain soil or element soil；The collar tie beam 8, such as Fig. 7
It with shown in Fig. 8, is prepared using armored concrete, is set to the top of wall.
A kind of method of construction of prestressing force cob wall of the utility model, as shown in FIG. 1 to FIG. 8, including following step
Suddenly, and following steps sequentially carry out,
Step 1: preparing prestressing force component
A set of above prestressing force component is prepared, as shown in figure 4, every suit prestressing force component includes outer tube 2, bottom plate
301, upper head plate 302, spring 3, inner sleeve 5 and deformed bar 6；Outer tube 2 is prepared using steel pipe, and internal diameter is greater than inner sleeve
5 outer diameter 0.5mm~5mm；Bottom plate 301 using steel plate prepare, outer profile size be greater than outer tube 2 outer diameter 50mm~
100mm；Upper head plate 302 is prepared using steel plate, and outer diameter is less than internal diameter 0.5mm~5mm of inner sleeve 5；Spring 3 use diameter for
Prepared by the round steel of 12mm~25mm, outer diameter is less than internal diameter 0.5mm~5mm of inner sleeve 5, by the bottom of spring 3 and bottom plate
301 are welded to connect, and top and upper head plate 302 are welded to connect；Inner sleeve 5 is prepared using steel pipe, and outer diameter is less than the interior of outer tube 2
Diameter 0.5mm~5mm, internal diameter is greater than outer diameter 0.5mm~5mm of upper head plate 302, in the distance from top top position 50mm~100mm
It is arranged and is welded to connect integral steel partition with inner sleeve 5, the outer profile size of steel partition is greater than the outer diameter of inner sleeve 5
50mm~100mm, the center of steel partition are equipped with the hole of diameter 12mm~40mm；Deformed bar 6 is big using yield strength
In the reinforcing bar or fining twisted steel of 300MPa；
Prestressing force component assembling, as shown in figure 4, by deformed bar 6 from the hole at 5 upper end steel partition center of inner sleeve
It is inserted into hole, and exposes from bottom, then outer tube 2 is covered from bottom in the outside of inner sleeve 5, welded connecting is integrally formed
Spring 3, bottom plate 301 and the unitarily formed upper head plate 302 of upper head plate 302 and deformed bar 6 weld or be bolted, immediately
By in a part insertion inner sleeve 5 of upper head plate 302 and spring 3, play outer tube 2, by the bottom of outer tube 2 and bottom plate
301 are welded to connect, and the preparation of prestressing force component is completed；
Step 2: preparation includes the cob wall of prestressing force component
As shown in figure 5, after the completion of building foundation 1 is constructed, 4 template of branch ground beam and binding 4 reinforcing bar of ground beam are wanted according to design
Seek one or more prestressing force component of arrangement, by the bottom merging ground beam 4 of prestressing force component, and make the top mark height of outer tube 2 with
The top mark of ground beam 4 is high concordant, then pours 4 concrete of ground beam and maintenance to intensity reaches C20 or more；
As shown in Figure 6 and Figure 7,7 wall of rammed earth is prepared through manually or mechanically compacting using after plain soil or element soil blending aggregate,
After reaching designed elevation at the top of 7 wall of rammed earth, wall top surface is flattened, 8 template of branch collar tie beam simultaneously binds 8 reinforcing bar of collar tie beam, the top of collar tie beam 8
Absolute altitude is high concordant with the top mark of inner sleeve 5, then pours 8 concrete of collar tie beam and maintenance to intensity reaches C20 or more；
Step 3: cob wall applies prestressing force
Pre-tensile stress, close spring are applied to deformed bar 6 as shown in figure 8, jack is sitting on 8 top surface of collar tie beam
3 are opened gap, lock deformed bar 6 using anchorage 9, remove jack and remove extra deformed bar section；
After all deformed bars 6 are completed tensioning and locked, cob wall is applied with sustainable vertical precompressed
Stress completes a kind of construction of prestressing force cob wall.
Claims (2)
1. a kind of prestressing force cob wall, it is characterized in that: including a set of above prestressing force component, ground beam (4), rammed earth (7)
And collar tie beam (8), the ground beam (4) are located at wall bottom, the rammed earth (7) is located at the top of ground beam (4), the collar tie beam (8)
Positioned at rammed earth (7) top, it is internal that a set of above prestressing force component is arranged at ground beam (4), rammed earth (7) and collar tie beam (8)；
Every suit prestressing force component includes outer tube (2), spring (3), bottom plate (301), upper head plate (302), inner sleeve
(5) and deformed bar (6) are managed, the outer tube (2) is steel pipe；Inside of inner sleeve (5) setting in outer tube (2)
And going deep into the internal 50mm~500mm of outer tube (2), inner sleeve (5) outer diameter is less than outer tube (2) internal diameter 0.5mm~5mm, inner sleeve
The top for managing (5) is greater than inner sleeve away from steel partition, steel partition outer profile size is provided at the position 50mm~100mm of tube top end
(5) outer diameter 50mm~100mm is managed, the center of steel partition is equipped with the hole that diameter is 12mm~40mm；The bottom plate (301)
For steel plate, be welded on the bottom of outer tube (2), bottom plate (301) outer profile size be greater than outer tube (2) outer diameter 50mm~
100mm；Spring (3) setting is internal in inner sleeve (5), and bottom is fixed on bottom plate (301), and spring (3) is outside
Diameter is less than inner sleeve (5) internal diameter 0.5mm~5mm；The upper head plate (302) is steel plate, is arranged at the top of spring (3), and outer
Overall size is identical as spring (3) outer diameter；Deformed bar (6) setting is on upper head plate (302) top, and top passes through steel
Hole on matter partition.
2. a kind of prestressing force cob wall according to claim 1, it is characterized in that: the deformed bar (6) is
Yield strength is greater than the reinforcing bar or fining twisted steel of 300MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920168136.1U CN209620328U (en) | 2019-01-31 | 2019-01-31 | A kind of prestressing force cob wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920168136.1U CN209620328U (en) | 2019-01-31 | 2019-01-31 | A kind of prestressing force cob wall |
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| Publication Number | Publication Date |
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| CN209620328U true CN209620328U (en) | 2019-11-12 |
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| CN201920168136.1U Withdrawn - After Issue CN209620328U (en) | 2019-01-31 | 2019-01-31 | A kind of prestressing force cob wall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707072A (en) * | 2019-01-31 | 2019-05-03 | 吉林建筑大学 | A kind of prestressing force cob wall and its method of construction |
-
2019
- 2019-01-31 CN CN201920168136.1U patent/CN209620328U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707072A (en) * | 2019-01-31 | 2019-05-03 | 吉林建筑大学 | A kind of prestressing force cob wall and its method of construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191112 Effective date of abandoning: 20220119 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20191112 Effective date of abandoning: 20220119 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |