CN202416324U - Beam and slab structure superposed through top-down beam and down-top slab construction of foundation pit project - Google Patents
Beam and slab structure superposed through top-down beam and down-top slab construction of foundation pit project Download PDFInfo
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- CN202416324U CN202416324U CN2011205421954U CN201120542195U CN202416324U CN 202416324 U CN202416324 U CN 202416324U CN 2011205421954 U CN2011205421954 U CN 2011205421954U CN 201120542195 U CN201120542195 U CN 201120542195U CN 202416324 U CN202416324 U CN 202416324U
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Abstract
The utility model discloses a beam and slab structure superposed through top-down beam and down-top slab construction of foundation pit project. The structure comprises a pre-poured beam, a post-poured beam and a post-poured slab, wherein the post-poured slab is supported by the pre-poured beam and is connected with the pre-poured beam through the post-poured beam; and a scabbling layer is formed between the pre-poured beam and the post-poured beam. The beam and slab structure is superposed by a top-down beam and down-top slab method of the foundation pit project; and a supporting beam is divided into the pre-poured beam and the post-poured beam, the pre-poured beam is taken as a supporting and protection system and is subjected to top-down construction first, and the post-poured beam and the post-poured slab are jointly finished in a down-top mode after a large bottom board is finished. Before the pre-poured beam is constructed, a superposition surface of the pre-poured beam is required to be scabbled first; and by forming the scabbling layer, a pre-poured beam structure and a post-poured beam are integrated, so that the secondary molding of a structural beam is realized, and the problem of weak connection between the structural beam and a post-poured floor slab is solved.
Description
Technical field
The utility model belongs to building underground construction technical field, relates to a kind of building girder plated construction, is specifically related to the contrary beam of a kind of base pit engineering along plate construction stack beam and slab structure.
Background technology
Present Foundation Pit Construction mainly contains along two kinds of the practice and contrary sequence methods:
Though suitable practice scheme speed of application is fast, operating environment good, because a large amount of interim supports need be set.Supporting rod length is big, and integral rigidity is little, the distortion of foundation ditch is bigger; The settings of supporting in a large amount of interim have in addition increased the base pit engineering cost, are unfavorable for the saving of social resources, and the interim dismounting of supporting had both influenced the duration and also is prone to the environment deleterious impact.
Adopt contrary sequence method, general outer wall of basement and bracing of foundation pit wall adopt the form of two walls unification, have saved the enclosure wall of setting up separately on the one hand, can in engineering land used scope, enlarge the basement area to greatest extent on the other hand, increase effective usable floor area.In addition, the support system of enclosure wall is replaced by the basement building cover structure, saves a large amount of support expenses.But contrary sequence method also comes with some shortcomings: receive the restriction of basement floor height like the contrary sequence method Support Position, can't adjust height, like the basement of big floor height, need establish the section and the arrangement of reinforcement of interim horizontal support or increasing enclosure wall sometimes in addition.Because contrary sequence method is cut the earth is under the top seal state, to carry out, the intermediate support post and the precipitation that also are distributed with some in the foundation ditch are managed with the well point in addition, still lack at present small-sized, flexibly, small-sized digging machine efficiently, make the difficulty increase of shoveling.This in addition excavation structure is unfavorable for natural ventilation, and not only speed of application is slow but also operating environment is poor.
Through adopting the contrary beam of base pit engineering to have the advantage of foundation ditch concurrently along the practice and contrary sequence method along the plate construction; Utilize the permanent structure beam as support system on the one hand, save material, can provide the ventilation illuminating position good underground construction operating environment on the other hand; Accelerate the speed of being unearthed, practice thrift the duration.But because the permanent structure beam is done behind the floor as supporting contrary in advance work; Water floor after the existence and water weak problem of being connected of structural beams earlier; Therefore, design a kind of structure that can effectively solve the weak problem of beam and slab structure and become the technical barrier that those skilled in the art press for solution.
The utility model content
The utility model technical problem to be solved provides a kind of contrary beam of base pit engineering that can effectively solve the weak problem of beam and slab structure along plate construction stack beam and slab structure, to overcome the above-mentioned defective that prior art exists.
The technical scheme of the utility model technical solution problem is following:
The contrary beam of a kind of base pit engineering is characterized in that along plate construction stack beam and slab structure: comprise water earlier beam, after water Liang Hehou and water plate, water after said plate with water earlier beam serve as support through after water Liang Yuxian and water beam and be connected, the said Liang Yuhou that waters earlier waters the cutter batt is set between the beam.
Can know by above disclosed technical scheme; The utility model is through the suitable plate method superposed beam plated construction of the contrary beam of design base pit engineering; Brace summer is divided into waters Liang Yuhou earlier and water beam, water beam earlier as the support system adverse construction method of going ahead of the rest, after water Liang Yuhou water plate after big base plate is accomplished together along accomplishing.After water beam before construction; Reply is watered the beam superposed surfaces earlier and is cut a hole hair and handle, through the cutter batt is set, make water earlier girder construction with after water girder construction and combine; The post forming of implementation structure beam, improve structural beams with after water the weak problem that is connected between the floor.
Description of drawings
Fig. 1 is the utility model stack beam and slab structure sectional structure chart;
Fig. 2 is the inner reinforcement placement figure of the utility model stack girder construction.
Reference numeral is following:
1, water earlier beam 2, after water plate 3, after water beam
4, cutter batt 5, earlier water the vertical muscle 6 of beam, after water the slab muscle
7, water the vertical muscle 8 of beam, beam stirrup after
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further to detail.
As illustrated in fig. 1 and 2; The contrary beam of the utility model base pit engineering is along plate construction stack beam and slab structure; Comprise water earlier beam 1, after water beam 3 and after water plate 2, water after said plate 2 with water earlier beam 1 serve as support through after water beam 3 and water beam 1 earlier and be connected, said water earlier beam 1 and after water to be provided with between the beam 3 and cut a hole batt 4.The thickness of said cutter batt 4 is 4～7mm.
Said water earlier to be provided with in the beam 1 water the vertical muscle 5 of beam earlier, water after said and water the vertical muscle 7 of beam after being provided with in the beam 3, water after said and water slab muscle 6 after being provided with in the plate 2, said water earlier the vertical muscle 5 of beam with after water beam and indulge muscle 7 and be fixedly connected through beam stirrup 8.Water the construction earlier of the vertical muscle 5 of beam earlier, after water slab muscle 6 with after water the vertical muscle 7 back constructions of beam.
The preferred embodiments that the above is merely the utility model is not the protection domain that is used for limiting the utility model, and every equal conversion of being done according to the utility model claim is all within the protection domain of the utility model.
Claims (3)
1. the contrary beam of base pit engineering is along plate construction stack beam and slab structure; It is characterized in that: comprise water earlier beam (1), after water beam (3) and after water plate (2); Water after said plate (2) with water earlier beam (1) serve as support through after water beam (3) and water beam (1) earlier and be connected, said water earlier beam (1) and after water to be provided with between the beam (3) and cut a hole batt (4).
2. the contrary beam of base pit engineering according to claim 1 is along plate construction stack beam and slab structure, and it is characterized in that: the thickness of said cutter batt (4) is 4～7mm.
3. the contrary beam of base pit engineering according to claim 1 is along plate construction stack beam and slab structure; It is characterized in that: said water earlier to be provided with in the beam (1) water the vertical muscle (5) of beam earlier; Water after said and water the vertical muscle (7) of beam after being provided with in the beam (3); Water after said and water slab muscle (6) after being provided with in the plate (2), said water earlier the vertical muscle (5) of beam with after water beam and indulge muscle (7) and be fixedly connected through beam stirrup (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205421954U CN202416324U (en) | 2011-12-21 | 2011-12-21 | Beam and slab structure superposed through top-down beam and down-top slab construction of foundation pit project |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205421954U CN202416324U (en) | 2011-12-21 | 2011-12-21 | Beam and slab structure superposed through top-down beam and down-top slab construction of foundation pit project |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202416324U true CN202416324U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011205421954U Expired - Lifetime CN202416324U (en) | 2011-12-21 | 2011-12-21 | Beam and slab structure superposed through top-down beam and down-top slab construction of foundation pit project |
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| CN (1) | CN202416324U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711128A (en) * | 2013-12-31 | 2014-04-09 | 上海建工七建集团有限公司 | Construction method for shallow foundation structural beam slab |
| CN106836240A (en) * | 2015-05-22 | 2017-06-13 | 朱奎 | Basement annular brace construction method for supporting |
| CN110258639A (en) * | 2019-07-10 | 2019-09-20 | 中铁第四勘察设计院集团有限公司 | A kind of subway station top plate turns over girder construction and its construction method |
| CN114855884A (en) * | 2022-06-09 | 2022-08-05 | 安徽建工集团股份有限公司总承包分公司 | Construction method facilitating early backfill of post-cast strip of underground foundation structure |
-
2011
- 2011-12-21 CN CN2011205421954U patent/CN202416324U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711128A (en) * | 2013-12-31 | 2014-04-09 | 上海建工七建集团有限公司 | Construction method for shallow foundation structural beam slab |
| CN106836240A (en) * | 2015-05-22 | 2017-06-13 | 朱奎 | Basement annular brace construction method for supporting |
| CN106894420A (en) * | 2015-05-22 | 2017-06-27 | 朱奎 | Basement construction method for supporting |
| CN106836240B (en) * | 2015-05-22 | 2018-08-10 | 朱奎 | Basement annular brace construction method for supporting |
| CN106894420B (en) * | 2015-05-22 | 2018-08-10 | 朱奎 | Basement construction method for supporting |
| CN110258639A (en) * | 2019-07-10 | 2019-09-20 | 中铁第四勘察设计院集团有限公司 | A kind of subway station top plate turns over girder construction and its construction method |
| CN110258639B (en) * | 2019-07-10 | 2024-02-27 | 中铁第四勘察设计院集团有限公司 | Upward beam turning structure of top plate of subway station and construction method of upward beam turning structure |
| CN114855884A (en) * | 2022-06-09 | 2022-08-05 | 安徽建工集团股份有限公司总承包分公司 | Construction method facilitating early backfill of post-cast strip of underground foundation structure |
| CN114855884B (en) * | 2022-06-09 | 2024-03-29 | 安徽建工集团股份有限公司总承包分公司 | Construction method for facilitating advanced backfilling of post-cast strip of underground foundation 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 |
Granted publication date: 20120905 |
|
| CX01 | Expiry of patent term |