CN202577315U - Hollow support beam for foundation pit support - Google Patents
Hollow support beam for foundation pit support Download PDFInfo
- Publication number
- CN202577315U CN202577315U CN 201220101996 CN201220101996U CN202577315U CN 202577315 U CN202577315 U CN 202577315U CN 201220101996 CN201220101996 CN 201220101996 CN 201220101996 U CN201220101996 U CN 201220101996U CN 202577315 U CN202577315 U CN 202577315U
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- Prior art keywords
- steel plate
- plate groove
- concrete
- foundation pit
- hollow support
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 96
- 239000010959 steel Substances 0.000 claims abstract description 96
- 230000002787 reinforcement Effects 0.000 claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 10
- 238000009412 basement excavation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a hollow support beam for foundation pit support. The hollow support beam consists of a left concrete beam, a right concrete beam and a concrete connecting plate, and has an inverted-U-shaped section, wherein the peripheries of the left concrete beam and the right concrete beam are coated with a first steel plate groove and a second steel plate groove respectively. The problems of excessively high support bending moment, excessively high support stress, unreasonable utilization of materials, poor support effect, the presence of potential safety hazard and the like existing in the prior art are solved; and the hollow support beam has the characteristics of simple structure, low manufacturing cost, economic and reasonable utilization of materials, good support effect, safety, reliability and the like.
Description
Technical field
The utility model relates to the Base hole supporting technology field, is that pattern foundation pit supporting structure is used the hollow support beam specifically.
Background technology
When building foundation pit is constructed, for guaranteeing construction safety, prevent that the landslide accident from taking place, must take supporting measure to the building foundation pit of excavation.The building foundation pit supporting design and construction should be taken all factors into consideration engineering geology and hydrogeological conditions, foundation ditch type, the excavation of foundation pit degree of depth, falls drainage condition, surrounding enviroment are to the requirement of foundation pit side-wall displacement; Factors such as all side loads of foundation ditch, construction seasons, supporting and protection structure useful life are accomplished appropriate design, well construction, economic security.
It is the form commonly used that supports in the excavation of foundation pit that steel concrete supports.Steel concrete supports the cast-in-place construction form that is generally.Support system is main with pressurized mainly, because span is bigger, also will bear the moment of flexure that produces owing to the deadweight effect simultaneously, and the steel concrete support need be born pressure and moment of flexure simultaneously.On-the-spot steel concrete supporting section form is solid rectangular elements, and supporting the moment of flexure that deadweight produces is the decisive factor of supporting section and arrangement of reinforcement, so have that material use is unreasonable, support effect is not good and the problem of potential safety hazard is arranged.
The utility model content
The purpose of the utility model is to overcome the deficiency that above prior art exists, provide a kind of simple in structure, inexpensive, economical rationality utilize material, support effect to reach safe and reliable pattern foundation pit supporting structure well to use the hollow support beam.
In order to achieve the above object; The utility model adopts following technical scheme: pattern foundation pit supporting structure is used the hollow support beam; Constitute by concrete left side beam, the right beam of concrete and concrete junction plate; Cross sectional shape is an inverted concave, and the periphery of beam, the right beam of concrete is coated with the first steel plate groove and the second steel plate groove respectively on a concrete left side.
In order to connect, also comprise the first steel plate connecting reinforcement and the second steel plate connecting reinforcement; Wherein, the concrete junction plate connects the first steel plate groove through the first steel plate connecting reinforcement, and the concrete junction plate connects the second steel plate groove through the second steel plate connecting reinforcement.
In order to strengthen protection effect, be distributed with lacing wire in the said first steel plate groove and the second steel plate groove.
In order to strengthen firm degree, be provided with reinforcing cage in the said concrete junction plate.
For the ease of moulding and enhancing protection effect, the said first steel plate groove and the second steel plate groove are integrated formed structure.
In order to guarantee the intensity of its hollow-core construction, said lacing wire vertically is provided with many, and length direction is spaced apart.
In order to strengthen protection effect, the steel plate thickness of the said first steel plate groove and the second steel plate groove is 2～6mm.
Construct for ease and satisfy force request, the width of Zuo Liang and right beam is 0.3～2.0 meter, highly is 0.8～2.0 meter.
The operating principle of the utility model: pattern foundation pit supporting structure is used the hollow support beam; Constitute by concrete left side beam, the right beam of concrete and concrete junction plate; Cross sectional shape is an inverted concave, and the periphery of beam, the right beam of concrete is coated with the first steel plate groove and the second steel plate groove respectively on a concrete left side.
During practical operation, excavate 2 brace summer grooves earlier, the structure of the structure of 2 brace summer grooves and the first steel plate groove and the second steel plate groove adapts; The first steel plate groove and the second steel plate groove can field fabrications; Also can one-body molded elder generation prefabricated, lacing wire also can field fabrication, and the first steel plate lacing wire and the second steel plate lacing wire corresponding affixed respectively (can be welding) be in the first steel plate groove and the second steel plate groove; After these operations are accomplished; The first steel plate groove and the second steel plate groove integral body are put into corresponding brace summer groove, then, the junction plate reinforcing bar is set; The concrete junction plate connects the first steel plate groove through the first steel plate connecting reinforcement, and the concrete junction plate connects the second steel plate groove through the second steel plate connecting reinforcement.
During practical application, hollow support beam two ends adopt the steel concrete of solid routine techniques to support respectively, help like this alleviating the moment of flexure that supports self, the dismounting work in the later stage that also helps constructing.
The utility model has following advantage and effect with respect to prior art:
1, the utility model is made up of concrete left side beam, the right beam of concrete and concrete junction plate; Cross sectional shape is an inverted concave; The periphery of beam, the right beam of concrete is coated with the first steel plate groove and the second steel plate groove respectively on a concrete left side, have simple in structure, inexpensive, economical rationality utilize material, support effect is good, safe and reliable and reduced because self deadweight produces the characteristics of moment of flexure.
2, the first steel plate groove in the utility model and the second steel plate groove are integrated formed structure, have to be convenient to construction and to strengthen protection effect.
3, the utility model has adopted lacing wire vertically to be provided with many, and length direction is spaced apart, has the characteristics of the intensity that guarantees its hollow-core construction.
Description of drawings
Fig. 1 is the schematic cross-section of the utility model pattern foundation pit supporting structure with the hollow support beam.
Label and title are following among the figure:
| 1 | The first |
2 | The second |
| 3 | Concrete |
4 | The right beam of concrete |
| 5 | The first steel |
6 | The second steel plate connecting reinforcement |
| 7 | The concrete junction plate | 8 | The junction |
| 9 | The |
10 | Lacing wire |
The specific embodiment
For ease of it will be appreciated by those skilled in the art that the utility model is done further to specify below in conjunction with accompanying drawing and embodiment.
Embodiment:
As shown in Figure 1; Pattern foundation pit supporting structure is used the hollow support beam; Constitute by concrete left side beam 3, the right beam 4 of concrete and concrete junction plate 7; Cross sectional shape is an inverted concave, and the periphery of beam 3, the right beam 4 of concrete is coated with the first steel plate groove 1 and the second steel plate groove 2 respectively on a concrete left side, also comprises the first steel plate connecting reinforcement 5 and the second steel plate connecting reinforcement 6; Wherein, concrete junction plate 7 connects the first steel plate groove 1 through the first steel plate connecting reinforcement 5, and concrete junction plate 7 connects the second steel plate groove 2 through the second steel plate connecting reinforcement 6; In order to gain in strength; Be distributed with lacing wire 10 in the first steel plate groove 1 and the second steel plate groove 2, lacing wire 10 vertically is provided with many, and length direction is spaced apart; Be provided with reinforcing cage in the concrete junction plate 7, the steel plate thickness of the first steel plate groove 1 and the second steel plate groove 2 is 2～6mm.
The first steel plate groove 1 and the second steel plate groove 2 in the present embodiment are integrated formed structure; The certain first steel plate groove 1 and the second steel plate groove 2 also can process according to on-site actual situations; Lacing wire 10 in the first steel plate groove 1 and the second steel plate groove 2 is respectively 3 roads, and the steel plate thickness of the first steel plate groove 1 and the second steel plate groove 2 is 4mm.
During practical operation, excavate 2 brace summer grooves 9 earlier, brace summer groove 9 is of a size of: 0.6 meter wide, and 1.0 meters high.The structure of the structure of 2 brace summer grooves 9 and the first steel plate groove 1 and the second steel plate groove 2 adapts, and the first steel plate groove 1 and the second steel plate groove 2 can field fabrications, and is also can one-body molded elder generation prefabricated; Lacing wire 10 also can field fabrication; Lacing wire 10 correspondence respectively is fixed in the first steel plate groove 1 and the second steel plate groove 2, after these operations are accomplished, the first steel plate groove 1 and the second steel plate groove, 2 integral body is put into corresponding brace summer groove 9; Then; Junction plate reinforcing bar 8 is set, and concrete junction plate 7 connects the first steel plate groove 1 through the first steel plate connecting reinforcement 5, and concrete junction plate 7 connects the second steel plate groove 2 through the second steel plate connecting reinforcement 6.
During practical application, hollow support beam two ends adopt the steel concrete of solid routine techniques to support respectively, so that column conveniently to be set, and are connected with the Guan Liang at two ends.Through such hollow support beam system, help alleviating the moment of flexure that supports self, the dismounting work in the later stage that also helps constructing reduces construction costs, shortens construction period.
The above-mentioned specific embodiment is the preferred embodiment of the utility model; Can not limit the utility model; Other any change or other equivalent substitute mode that does not deviate from the technical scheme of the utility model and made is included within the protection domain of the utility model.
Claims (7)
1. pattern foundation pit supporting structure is used the hollow support beam; It is characterized in that: constitute by concrete left side beam (3), the right beam (4) of concrete and concrete junction plate (7); Cross sectional shape is an inverted concave, and the periphery of beam (3), the right beam of concrete (4) is coated with the first steel plate groove (1), the second steel plate groove (2) respectively on a concrete left side.
2. pattern foundation pit supporting structure according to claim 1 is used the hollow support beam, it is characterized in that: also comprise the first steel plate connecting reinforcement (5) and the second steel plate connecting reinforcement (6); Wherein, concrete junction plate (7) connects the first steel plate groove (1) through the first steel plate connecting reinforcement (5), and concrete junction plate (7) connects the second steel plate groove (2) through the second steel plate connecting reinforcement (6).
3. pattern foundation pit supporting structure according to claim 2 is used the hollow support beam, it is characterized in that: be distributed with lacing wire (10) in the said first steel plate groove (1) and the second steel plate groove (2).
4. pattern foundation pit supporting structure according to claim 3 is used the hollow support beam, it is characterized in that: be provided with reinforcing bar in the said concrete junction plate (7).
5. pattern foundation pit supporting structure according to claim 4 is used the hollow support beam, it is characterized in that: the said first steel plate groove (1) and the second steel plate groove (2) are integrated formed structure.
6. pattern foundation pit supporting structure according to claim 5 is used the hollow support beam, it is characterized in that: said lacing wire (10) vertically is provided with many, and length direction is spaced apart.
7. pattern foundation pit supporting structure according to claim 6 is used the hollow support beam, it is characterized in that: the steel plate thickness of the said first steel plate groove (1) and the second steel plate groove (2) is 2～6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220101996 CN202577315U (en) | 2012-03-16 | 2012-03-16 | Hollow support beam for foundation pit support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220101996 CN202577315U (en) | 2012-03-16 | 2012-03-16 | Hollow support beam for foundation pit support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202577315U true CN202577315U (en) | 2012-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220101996 Expired - Lifetime CN202577315U (en) | 2012-03-16 | 2012-03-16 | Hollow support beam for foundation pit support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202577315U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862879A (en) * | 2016-05-31 | 2016-08-17 | 浙江工业大学 | Rigidity-variable foundation pit supporting structure |
| CN105887893A (en) * | 2016-05-31 | 2016-08-24 | 浙江工业大学 | Variable-rigidity foundation pit support structure |
-
2012
- 2012-03-16 CN CN 201220101996 patent/CN202577315U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862879A (en) * | 2016-05-31 | 2016-08-17 | 浙江工业大学 | Rigidity-variable foundation pit supporting structure |
| CN105887893A (en) * | 2016-05-31 | 2016-08-24 | 浙江工业大学 | Variable-rigidity foundation pit support structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |