CN203613565U - Connection structure of basic raft and dual-purpose underground diaphragm wall - Google Patents
Connection structure of basic raft and dual-purpose underground diaphragm wall Download PDFInfo
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- CN203613565U CN203613565U CN201320763425.9U CN201320763425U CN203613565U CN 203613565 U CN203613565 U CN 203613565U CN 201320763425 U CN201320763425 U CN 201320763425U CN 203613565 U CN203613565 U CN 203613565U
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- diaphragm wall
- raft
- steel reinforcement
- underground diaphragm
- edge beam
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- 230000002787 reinforcement Effects 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 33
- 210000003205 muscle Anatomy 0.000 claims description 11
- 238000009412 basement excavation Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 9
- 229910000831 Steel Inorganic materials 0.000 abstract 9
- 239000010959 steel Substances 0.000 abstract 9
- 230000007704 transition Effects 0.000 abstract 1
- 238000013461 design Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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Abstract
The utility model belongs to the filed of building foundation pit supporting and foundations, and discloses a connection structure of a basic raft and a dual-purpose underground diaphragm wall. According to the technical scheme, an edge beam is arranged on the periphery of the raft; one side of the edge beam is connected with the raft; the other side of the edge beam is connected with the underground diaphragm wall; steel reinforcement connectors in the normal direction of the underground diaphragm wall are embedded in a steel reinforcement cage of the underground diaphragm wall; the steel reinforcement connectors are embedded below the top elevation of the edge beam and above the bottom elevation of the edge beam in rows; the length of the horizontal section of each steel reinforcement connector is greater than a half of the width of the underground diaphragm wall; after a foundation pit is excavated to the bottom, one end of each connection steel reinforcement is screwed into the corresponding steel reinforcement connector, the other end of each steel reinforcement is anchored in the edge beam, and a main rib of the raft is anchored in the edge beam. Through the transition function of the edge beam, the raft and the underground diaphragm wall are integrated, and the problems that when inclined steel reinforcement connectors are embedded in the underground diaphragm wall, accuracy is low, and the construction difficulty is high when the underground diaphragm wall is in steel reinforcement connection with the raft are solved.
Description
Technical field
The utility model belongs to building foundation pit supporting is connected basic raft plate and " two walls unification " diaphragm wall a kind of node with basic field, can be widely used in adopting in the base pit engineering that diaphragm wall goes along with sb. to guard him.
Background technology
Since the mid-90 in 20th century, China formally enters Urban Underground Space Excavation and utilizes the epoch, and the construction of basement in high rise building that extensive underground space development causes, underground store, underground parking, large underground station, underground substation etc. is accompanied by and produces a large amount of deep-foundation pit engineerings; And foundation ditch scale is increasing, cutting depth is more and more darker.Diaphragm wall is safe because rigidity is large, in good integrity, Excavation Process, has been widely used in and has had the base pit engineering of more than three layers basement, contiguous base pit engineering, the base pit engineering of topdown construction method etc. that has the exigent building of protection.While adopting diaphragm wall as the space enclosing structure of foundation ditch, the form of general employing " two walls unifications ", adopts diaphragm wall as supporting and protection structure in the foundation pit construction stage, and uses as structure outer at normal operational phase diaphragm wall.This just relates to the connectivity problem of diaphragm wall and basic raft plate, and connected node will meet stressed requirement.Conventional method of attachment is that the reinforcing bar of basic raft plate is directly connected with the reinforcing bar connector being embedded in advance in diaphragm wall, when the normal direction of diaphragm wall face and raft slab muscle setting party are when not parallel, just need be in diaphragm wall pre-buried oblique reinforcing bar connector make reinforcing bar connector with raft slab muscle setting party to consistent, this causes the pre-buried precision of reinforcing bar connector to be difficult to meet the demands on the one hand, and connected node is stressed also unreasonable on the other hand; In addition, from design schedule, the universal phenomenon that engineering circles exists is at present that diaphragm wall is gone along with sb. to guard him design often in advance, simultaneously owner wishes that diaphragm wall can construct as early as possible, and now Design of Main Structure often lags behind, go along with sb. to guard him the design stage at diaphragm wall and be generally also difficult to provide the concrete arrangement of reinforcement of basic raft plate, make diaphragm wall go along with sb. to guard him design and cannot determine the reinforcing bar connector that adopts which kind of specification, this has restricted the possibility that engineering goes into operation as early as possible to a certain extent.
Utility model content
The utility model provides the connected node of a kind of basic raft plate with " two wall unifications " diaphragm wall, this node solved the normal direction of diaphragm wall face and raft slab muscle setting party when not parallel in diaphragm wall pre-buried oblique reinforcing bar connector precision be difficult to meet the demands and stressed also irrational technical problem of connected node, met the force request that " two walls unifications " diaphragm wall is connected with basic raft plate.
For solving the problems of the technologies described above, basic conception of the present utility model is: one side bar of raft plate periphery setting, side bar is connected with raft plate on one side, is connected on one side, thereby raft plate and diaphragm wall are connected into an entirety with diaphragm wall.In the reinforcing cage of described diaphragm wall, bury underground along the reinforcing bar connector of described diaphragm wall face normal direction, described reinforcing bar connector is arranged with more than end absolute altitude respectively burying underground more below the top mark height of described side bar, and the horizontal section length of described reinforcing bar connector should exceed the half of the width of described diaphragm wall, excavation of foundation pit on earth after, connecting reinforcement one end is screwed in described reinforcing bar connector, other end anchor is in described side bar, and the main muscle of raft plate anchors in described side bar.The main muscle of raft plate only need anchor into side bar and meet anchorage length and require, without anchoring in diaphragm wall.
In such scheme, reinforcing bar connector is below the top mark height of side bar and more than end absolute altitude generally respectively bury two rows underground, as basement plank thickness and side bar height very large, can optionally increase the row of reinforcing bar connector.In addition, the length of connecting reinforcement need meet the anchorage length requirement stipulating in prior art standard, and anchorage length belongs to prior art, does not belong in the utility model protection domain.
The utility model has been linked to be an entirety by the transitional function of side bar by raft plate and diaphragm wall, avoid low, high with the raft slab muscle connection construction difficulty problem of pre-buried oblique reinforcing bar connector precision in diaphragm wall, both met force request, and in design and construction progress, can make again diaphragm wall construct as early as possible and not be subject to the impact of main body underground structure design schedule.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and example and application construction method, the utility model will be further described.
Fig. 1 is the schematic diagram of embedded bar connector in diaphragm wall.
Fig. 2 is excavation of foundation pit to cheating the schematic diagram that diaphragm wall is connected with side bar and raft plate behind the end.
The specific embodiment
The utility model, by embedded bar connector in diaphragm wall, has then been linked to be entirety by the transitional function of side bar by raft plate and diaphragm wall, plays convenient construction, meets the effect of diaphragm wall force request.By reference to the accompanying drawings, specific descriptions are as follows:
As shown in Figure 1, by embedded bar connector 3 in diaphragm wall 1, reinforcing bar connector 3 is below the top mark height of floor frame 5 and more than end absolute altitude respectively bury two rows underground, the horizontal section length of reinforcing bar connector 3 should exceed the half of the width of described diaphragm wall 1, and the total length of horizontal segment and the section of bending up need meet the anchorage length requirement stipulating in prior art standard.Reinforcing bar connector 3 can adopt I grade reinforcing steel straight thread connector, and its diameter can be identical with the main muscle of raft plate with spacing.In the time that the height of floor frame 5 is larger, can optionally increase the row of reinforcing bar connector 3.Reinforcing bar connector 3 is embedded in diaphragm wall reinforcing cage, be connected firmly with the main muscle 2 of diaphragm wall reinforcing cage, reinforcing bar connector 3 outsides can be optimized packing and mould plate 4, and collection is moulded on the main muscle 2 that plate 4 colligations are fixed on diaphragm wall 1 reinforcing cage, and when construction, should adopt an effective measure prevents in reinforcement cage immersion and concreting process that collection is moulded plate and is shifted.
As shown in Figure 2, excavation of foundation pit, after the end absolute altitude of hole, is removed collection and is moulded plate 4, exposes the joint of reinforcing bar connector 3 and is cleaned out, and then connecting reinforcement 7 one end is screwed in reinforcing bar connector 3, and the other end is placed in side bar 5.The diameter of connecting reinforcement 7 and quantity are identical with reinforcing bar connector 3, and its length need meet the anchorage length requirement stipulating in prior art standard.The main muscle 8 of raft plate anchors in side bar 5, and it anchors into length and also needs to meet the anchorage length requirement stipulating in prior art standard.Reinforcing bar connects end after-pouring concrete and connects into entirety by diaphragm wall 1, side bar 5 and raft plate 6, thereby meets force request.
The scheme above the utility model example being provided is introduced in detail, for one of ordinary skill in the art, according to the thought of the utility model embodiment, all will change in specific embodiments and applications.In sum, this description should not be construed as restriction of the present utility model, and all any changes of making according to the utility model design philosophy are all within protection domain of the present utility model.
Claims (1)
1. being connected of a basic raft plate and " two walls unifications " diaphragm wall, it is characterized in that: one side bar of raft plate periphery setting (5), described side bar (5) is connected with raft plate on one side, be connected with diaphragm wall (1) on one side, in the reinforcing cage of described diaphragm wall (1), bury the reinforcing bar connector (3) along described diaphragm wall face normal direction underground, described reinforcing bar connector (3) is respectively buried above many rows underground with end absolute altitude below the top mark height of described side bar (5), and the horizontal section length of described reinforcing bar connector (3) should exceed the half of the width of described diaphragm wall (1), excavation of foundation pit on earth after, connecting reinforcement (7) one end is screwed in described reinforcing bar connector (3), other end anchor is in described side bar (5), the main muscle of raft plate (8) anchors in described side bar (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320763425.9U CN203613565U (en) | 2013-11-28 | 2013-11-28 | Connection structure of basic raft and dual-purpose underground diaphragm wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320763425.9U CN203613565U (en) | 2013-11-28 | 2013-11-28 | Connection structure of basic raft and dual-purpose underground diaphragm wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203613565U true CN203613565U (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320763425.9U Expired - Lifetime CN203613565U (en) | 2013-11-28 | 2013-11-28 | Connection structure of basic raft and dual-purpose underground diaphragm wall |
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| Country | Link |
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| CN (1) | CN203613565U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590428A (en) * | 2013-11-28 | 2014-02-19 | 华东建筑设计研究院有限公司 | Connection method for basic raft and 'two-in-one' underground diaphragm wall |
| CN104153372A (en) * | 2014-07-30 | 2014-11-19 | 上海市政工程设计研究总院（集团）有限公司 | Method for foundation-pit vertical supporting piece to serve as bearing pile |
| CN106869548A (en) * | 2017-04-09 | 2017-06-20 | 北京工业大学 | A kind of newel framework assembled underground parking structural system and construction method |
-
2013
- 2013-11-28 CN CN201320763425.9U patent/CN203613565U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590428A (en) * | 2013-11-28 | 2014-02-19 | 华东建筑设计研究院有限公司 | Connection method for basic raft and 'two-in-one' underground diaphragm wall |
| CN104153372A (en) * | 2014-07-30 | 2014-11-19 | 上海市政工程设计研究总院（集团）有限公司 | Method for foundation-pit vertical supporting piece to serve as bearing pile |
| CN104153372B (en) * | 2014-07-30 | 2016-06-22 | 上海市政工程设计研究总院（集团）有限公司 | A kind of vertical support unit of foundation ditch doubles as bearing pile method |
| CN106869548A (en) * | 2017-04-09 | 2017-06-20 | 北京工业大学 | A kind of newel framework assembled underground parking structural system and construction method |
| CN106869548B (en) * | 2017-04-09 | 2018-10-19 | 北京工业大学 | A kind of newel frame assembled underground parking structural system and construction method |
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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: 20140528 |
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| CX01 | Expiry of patent term |