CN211665764U - Reinforced concrete bearing structure - Google Patents
Reinforced concrete bearing structure Download PDFInfo
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- CN211665764U CN211665764U CN201921882285.0U CN201921882285U CN211665764U CN 211665764 U CN211665764 U CN 211665764U CN 201921882285 U CN201921882285 U CN 201921882285U CN 211665764 U CN211665764 U CN 211665764U
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- reinforced concrete
- concrete support
- axial force
- crown beam
- support
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Abstract
The utility model discloses a reinforced concrete bearing structure, include: the reinforced concrete support is transversely arranged on a crown beam at the top of the foundation pit, first convex blocks are convexly arranged at two ends of the reinforced concrete support, and first grooves matched with the first convex blocks are concavely arranged on the crown beam at positions corresponding to the first convex blocks at the two ends of the reinforced concrete support; and each first groove is internally provided with an axial force meter for monitoring the supporting axial force of the reinforced concrete support. The reinforced concrete support and the crown beam of the utility model are connected by the convex block and the groove, and can be disassembled, so that the reinforced concrete support can be repeatedly utilized; and the dynamometer is installed at the joint of the reinforced concrete support and the crown beam to monitor the axial force of the reinforced concrete support, so that the error of the support axial force caused by the factors such as the shrinkage and creep of the concrete can be completely avoided, and the accuracy of the monitoring data is improved.
Description
Technical Field
The utility model relates to a building engineering technical field, in particular to reinforced concrete bearing structure.
Background
In the process of deep foundation pit construction, particularly in the process of subway construction, excavation operation is usually performed on a foundation pit by using an internal support method, the supports are generally classified into reinforced concrete supports and steel supports according to materials, wherein the reinforced concrete supports are large in rigidity and high in strength and can be widely applied to excavation of the deep foundation pit. Therefore, the accurate monitoring of the supporting axial force of the reinforced concrete is particularly important in deep foundation pit engineering, which plays a role in guaranteeing the safety of constructors and the quality of the whole engineering; compared with the steel support, the reinforced concrete support has the greatest defect that the axial force of the support cannot be pre-applied, so that the application of the reinforced concrete support in the deep foundation pit construction is not as flexible and changeable as the steel support, namely, the reinforced concrete support does not have the coordination capability of coping with risks.
In the existing reinforced concrete support, an axial force meter is pre-embedded in the reinforced concrete support, so that a method for monitoring the axial force of the reinforced concrete support is restricted by a plurality of non-load factors, such as the influence of concrete shrinkage and creep, and the real stress of a building envelope is difficult to accurately monitor, generally obtained monitoring data are far greater than the actual stress condition of a member, sometimes the error reaches 50%, and the error is large. When the early warning condition of the supporting axial force occurs, construction units must take emergency measures to ensure the safety of construction environment. Supposing that the early warning condition occurs due to the monitoring error, the progress of the whole project is affected, and waste of various resources such as manpower and material resources is caused, so how to ensure the accuracy of the monitoring data and reduce the error becomes an urgent engineering problem to be solved in the foundation pit project.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a reinforced concrete bearing structure to overcome current with the pre-buried in reinforced concrete of axial force meter, easily receive the shrink of concrete and creep's influence, the big shortcoming of monitoring error.
In order to achieve the above object, the utility model provides a reinforced concrete bearing structure, include: the reinforced concrete support is transversely arranged on a crown beam at the top of the foundation pit, first convex blocks are convexly arranged at two ends of the reinforced concrete support, and first grooves matched with the first convex blocks are concavely arranged on the crown beam at positions corresponding to the first convex blocks at the two ends of the reinforced concrete support; and each first groove is internally provided with one axial force meter for monitoring the supporting axial force of the reinforced concrete support.
Preferably, in the above technical scheme, two ends of each reinforced concrete support are convexly provided with two inclined struts, the two inclined struts are symmetrically located at the left and right sides of the end portion of the corresponding reinforced concrete support, the two inclined struts are distributed in a V shape with an outward opening, one end of each inclined strut connected with the crown beam is convexly provided with a second convex block, and the crown beam is concavely provided with a second groove matched with the second convex block at a position corresponding to the second convex block of each inclined strut.
Preferably, in the above technical solution, a hydraulic jack is provided in each second groove, and is used for pre-applying a support axial force to the reinforced concrete support.
Preferably, in the above technical solution, a plastic slip film is disposed in the second groove.
Preferably, in the above technical solution, a plastic slip film is disposed in the first groove.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the reinforced concrete support and the crown beam of the utility model are connected by adopting the convex block and the groove, and can be disassembled, so that the reinforced concrete support can be repeatedly utilized, and the energy conservation and the environmental protection are realized; and install the dynamometer at the junction of reinforced concrete support and crown beam, install the dynamometer in the first recess of crown beam promptly to monitor the support axial force of reinforced concrete support, can avoid the error of the support axial force that causes by factors such as concrete self shrink and creep completely, improve the accuracy of monitoring data, so that foundation ditch engineering construction can go on smoothly, thereby make the risk assessment of foundation ditch excavation engineering more comprehensive and concrete, avoid the condition of wrong early warning appearing.
2. The utility model discloses a both ends of reinforced concrete support are all protruding to be equipped with two bearing diagonal to improve the stability of reinforced concrete support, and at every bearing diagonal and the junction installation hydraulic jack of guan liang, in order to add the supporting shaft power in advance for reinforced concrete support, prevent that the foundation ditch is out of shape, meet the emergent and the regulating power of the risk of collapsing in improving the foundation ditch work progress greatly.
Drawings
Fig. 1 is a schematic structural view of a reinforced concrete support structure according to the present invention.
Fig. 2 is a schematic view of a connection structure between a reinforced concrete support and a crown beam according to the present invention.
Description of the main reference numerals:
1-foundation pit, 2-crown beam, 3-reinforced concrete support, 4-diagonal support, 5-first groove, 6-axial force meter, 7-second groove, 8-hydraulic jack, 9-second lug and 10-first lug.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Fig. 1 and 2 show a structural schematic view of a reinforced concrete support structure including a reinforced concrete support 3 and an axial force meter 6 according to a preferred embodiment of the present invention. Referring to fig. 1 and 2, the reinforced concrete support 3 is transversely installed on a crown beam 2 at the top of a foundation pit 1, first convex blocks 10 are convexly arranged at two ends of the reinforced concrete support 3, first grooves 5 matched with the first convex blocks 10 are concavely arranged at positions of the crown beam 2 corresponding to the first convex blocks 10 at the two ends of the reinforced concrete support 3, and the reinforced concrete support 3 is installed on the crown beam 2 through the matching connection of the convex blocks and the grooves so as to support the foundation pit 1. An axial force meter 6 is arranged in each first groove 5, namely the axial force meter 6 is arranged at the joint of the crown beam 2 and the reinforced concrete support 3 and used for monitoring the supporting axial force of the reinforced concrete support 3. The reinforced concrete support 3 and the crown beam 2 of the utility model are connected by adopting the convex block and the groove, and can be disassembled, so that the reinforced concrete support 3 can be repeatedly utilized, and the energy-saving and environment-friendly effects are achieved; and install the dynamometer 6 in the junction of reinforced concrete support 3 and crown beam 2, namely install the dynamometer 6 in the first recess 5 of crown beam 2, in order to monitor the axial force of reinforced concrete support 3, can avoid the error of the support axial force that causes by factors such as concrete self shrink and creep completely, improve the accuracy of the monitoring data, so that foundation ditch 1 engineering construction can go on smoothly, thus make the risk assessment of foundation ditch 1 excavation engineering more comprehensive and concrete, avoid the condition of the wrong early warning appearing.
With continued reference to fig. 1 and 2, preferably, two inclined struts 4 are convexly provided at both ends of the reinforced concrete support 3 to improve the stability of the support, the two inclined struts 4 are symmetrically located at the left and right sides of the end portion of the corresponding reinforced concrete support 3, and the two inclined struts 4 are distributed in a V shape with the opening facing outwards, that is, the two inclined struts 4 are convexly provided at the left and right sides of the front end of the reinforced concrete support 3, wherein the rear end of the left inclined strut 4 is connected with the reinforced concrete support 3, the front end is inclined to the left from the rear to the front, the rear end of the right inclined strut 4 is connected with the reinforced concrete support 3, and the front end is inclined to the right from the rear to the front; the left side and the right side of the rear end of the reinforced concrete support 3 are convexly provided with two inclined supports 4, wherein the front end of the inclined support 4 on the left side is connected with the reinforced concrete support 3, the rear end inclines leftwards from front to back, the front end of the inclined support 4 on the right side is connected with the reinforced concrete support 3, and the rear end inclines rightwards from front to back. A second convex block 9 is convexly arranged at one end of each inclined support 4 connected with the crown beam 2, and a second groove 7 matched with the second convex block 9 is concavely arranged at the position of the crown beam 2 corresponding to the second convex block 9 of each inclined support 4. Further preferably, a hydraulic jack 8 is arranged in each second groove 7, namely the hydraulic jack 8 is arranged at the joint between the inclined strut 4 and the crown beam 2 and used for pre-applying a supporting axial force to the reinforced concrete support 3, so that the deformation of the foundation pit 1 is prevented, and the emergency and adjusting capacity of the collapse risk in the construction process of the foundation pit 1 is greatly improved.
With continued reference to fig. 1 and 2, preferably a plastic slip film is provided in the first groove 5 and a plastic slip film is also provided in the second groove 7 to reduce the effect of friction between the reinforced concrete support 3 and the crown beam 2, facilitating the application of the pre-stress. Wherein, the plastic slip film is made of an environment-friendly silica gel film.
The reinforced concrete support 3 and the crown beam 2 are connected by adopting the convex block and the groove, and can be disassembled, so that the reinforced concrete support 3 can be repeatedly utilized, and the energy is saved and the environment is protected; the dynamometer 6 is installed at the joint of the reinforced concrete support 3 and the crown beam 2 to monitor the axial force of the reinforced concrete support 3, so that the error of the support axial force caused by the factors such as the shrinkage and creep of the concrete can be completely avoided, the accuracy of monitoring data is improved, and the engineering construction of the foundation pit 1 can be smoothly carried out; two inclined struts 4 are convexly arranged at two ends of the reinforced concrete support 3 to improve the stability of the reinforced concrete support 3, and a hydraulic jack 8 is arranged at the joint of each inclined strut 4 and the top beam 2 to pre-add a supporting axial force to the reinforced concrete support 3, so that the deformation of the foundation pit 1 is prevented, and the emergency and adjusting capacity of the collapse risk in the construction process of the foundation pit 1 is greatly improved.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (5)
1. A reinforced concrete support structure, comprising:
the reinforced concrete support is transversely arranged on a crown beam at the top of the foundation pit, first convex blocks are convexly arranged at two ends of the reinforced concrete support, and first grooves matched with the first convex blocks are concavely arranged on the crown beam at positions corresponding to the first convex blocks at the two ends of the reinforced concrete support; and
and one axial force meter is arranged in each first groove and used for monitoring the supporting axial force of the reinforced concrete support.
2. The reinforced concrete supporting structure according to claim 1, wherein two inclined struts are convexly provided at both ends of the reinforced concrete support, the two inclined struts are symmetrically located at left and right sides of the end portion of the corresponding reinforced concrete support, and the two inclined struts are distributed in a V shape with an opening facing outwards, a second protrusion is convexly provided at one end of each inclined strut connected with the crown beam, and a second groove matched with the second protrusion is concavely provided at a position of the crown beam corresponding to the second protrusion of each inclined strut.
3. A reinforced concrete support structure as claimed in claim 2, wherein a hydraulic jack is provided in each of said second grooves for preloading said reinforced concrete supports with a supporting axial force.
4. A reinforced concrete support structure according to claim 2, wherein a plastics slip film is provided within the second recess.
5. A reinforced concrete support structure according to claim 1, wherein a plastics slip film is provided within the first recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921882285.0U CN211665764U (en) | 2019-11-04 | 2019-11-04 | Reinforced concrete bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921882285.0U CN211665764U (en) | 2019-11-04 | 2019-11-04 | Reinforced concrete bearing structure |
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| Publication Number | Publication Date |
|---|---|
| CN211665764U true CN211665764U (en) | 2020-10-13 |
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| CN201921882285.0U Expired - Fee Related CN211665764U (en) | 2019-11-04 | 2019-11-04 | Reinforced concrete bearing structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820755A (en) * | 2019-11-04 | 2020-02-21 | 广西大学 | Reinforced concrete bearing structure |
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2019
- 2019-11-04 CN CN201921882285.0U patent/CN211665764U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820755A (en) * | 2019-11-04 | 2020-02-21 | 广西大学 | Reinforced concrete bearing structure |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Meng Guowang Inventor after: Wu Yufang Inventor after: Huang Zonghui Inventor after: Huang Jinsong Inventor after: Wu Bo Inventor after: Xu Jie Inventor after: Wei Han Inventor after: Nong Zhongjian Inventor after: Suo Xiao Inventor after: Li Jin Inventor after: Zhang Ziyi Inventor before: Wu Bo Inventor before: Wu Yufang Inventor before: Huang Zonghui Inventor before: Huang Jinsong Inventor before: Meng Guowang Inventor before: Xu Jie Inventor before: Wei Han Inventor before: Nong Zhongjian Inventor before: Suo Xiao Inventor before: Li Jin Inventor before: Zhang Ziyi |
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| CB03 | Change of inventor or designer information | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201013 Termination date: 20211104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |