CN201857615U - Steel support device of double-wedge foundry flask - Google Patents
Steel support device of double-wedge foundry flask Download PDFInfo
- Publication number
- CN201857615U CN201857615U CN2010205940913U CN201020594091U CN201857615U CN 201857615 U CN201857615 U CN 201857615U CN 2010205940913 U CN2010205940913 U CN 2010205940913U CN 201020594091 U CN201020594091 U CN 201020594091U CN 201857615 U CN201857615 U CN 201857615U
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- sandbox
- steel
- telescopic
- steel plate
- headstock
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 105
- 239000010959 steel Substances 0.000 title claims abstract description 105
- 239000004576 sand Substances 0.000 claims abstract description 31
- 244000035744 Hura crepitans Species 0.000 claims description 48
- 239000003351 stiffener Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000013332 literature search Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
A steel support device of a double-wedge foundry flask comprises a moveable head, a telescopic sleeve and a flexible seat, wherein the moveable head is provided with a support end plate, one end surface of the support end plate is provided with a behind jack steel plate, a stiffening steel plate and a two-wing ribbed plates, and all components are fixedly connected through welding. The telescopic sleeve is sleeved on the stiffening steel plate and the two-wing ribbed plate; the flexible seat is further sleeved on the telescopic sleeve; a foundry flask where sand can be poured is formed between the inside of the flexible seat and the telescopic sleeve; the combined length of the telescopic sleeve and the flexible seat is adjusted according to the volume of sand in the foundry flask; and when sand is poured, sand can be poured only through an upper opening and a sand filling hole on the foundry flask. Jacks are placed on two sides of the moveable head, so that after applying stress, a clearance generated after adjusting support length is filled by double rows of steel wedges.
Description
Technical field
The utility model relates to a kind of novel folding wedge sandbox steel bracing or strutting arrangement, is primarily aimed at traditional steel supporting form and technology and improves, and is used for construction work member field.
Background technology
Find by literature search, Liang Peizhu " steel work is supported on the application in the deep foundation pit support ", 2009 the 4th phases of Guangdong building materials, this article has been introduced the some shortcomings and the defective of setting up and removing existence in requirement and present steel supported design and the construction that the support system in the deep foundation ditch, steel support.Described in the preamble: " steel work support have deadweight little, install and remove all very convenient, and advantage such as can reuse.According to the soil excavation progress, steel work supports can be accomplished with digging with support, and can apply prestressing force, and this is very favourable to the control deformation of wall.Therefore, in the ordinary course of things, should preferentially select for use steel work to support.It is relatively poor that yet steel work supports integral rigidity, and it is many that node is installed, and unreasonable when joint structure, or construction wrong do not meet designing requirement, often causes easily because of node distortion and steel work supporting deformation, and then causes the excessive horizontal movement of foundation ditch.Sometimes even because destruction of a node, causing a bit disconnected and destroy whole consequence.Should be controlled by measures such as appropriate design, strict field control and raising construction technology levels this." described in the dismounting of 4.2 joint inner supporting bodies systems: " should avoid moment prestressing to discharge excessive during the dismounting of support system and cause structure partial distortion, cracking.
At present the steel that generally adopts of deep-foundation pit engineering supports and is generally diameter 609MM, and wall thickness 16MM round steel pipe supports, and braced structures mainly is formed by connecting by flange by the steel pipe of-individual fixed end, an active head and several different lengths.The general design length of fixed end and active head (closure state) is 2.67M, also can suitably adjust according to actual conditions.Active head is provided with a movably main shaft, after the employing jack is exerted pressure full segment length is adjusted, and utilizes gad that adjusted steel is supported the space and tamps, and reaches to make whole support system press a mask uniformly by designing requirement.Existing steel is supported on and has following problem in the foundation pit construction: (1) conventional steel is supported for single gad, the lateral stiffness instability.(2) steel support ultimate bearing capacity is 3250KN.(data are from＜Code for design of steel structures〉GB50017-2003) (3) support method of tearing open commonly used at present mainly contains two kinds: one for to apply extra prestressing force to support; Two are the unloading of cutting gad.Adopt first kind of scheme to remove when supporting, may influence the concrete structure.Adopting second kind of scheme dismounting to support needs the unloading of cutting gad, and the gad material can't be reused, and causes construction cost to increase, and may damage and support active head.
Under the soft foundation condition, carry out foundation pit construction; especially in the metropolis; on the ground, underground various building structure is stood in great numbers; carry out the saturation state that underground foundation pit construction reaches " seizing every opportunity " in the business district; and foundation pit construction is also more and more higher to the protection requirement of surrounding enviroment; though steel support construction have deadweight little, install and remove advantages such as all very convenient; but because its integral rigidity is relatively poor; node processing will exert an influence to foundation pit construction accidentally, therefore construction technology is proposed very high requirement.Under such background, we supports construction technology with regard to traditional steel and improves, and abbreviaties; when improving the support integral rigidity; improve the operability of construction technology as far as possible, thereby it is minimum that steel support construction risk is dropped to, reach the effect of protection surrounding enviroment.
Summary of the invention
The utility model is at prior art deficiency and defective, existing steel supporting form is improved to a kind of novel folding wedge sandbox steel supports, and realizing improving the bearing capacity of bracing or strutting arrangement, and do not destroy the gad structure and the purpose that unloads.
Based on above-mentioned purpose, major technique means of the present utility model are to provide a kind of folding wedge sandbox steel bracing or strutting arrangement, and it is provided with an active head, comprise a steel support end plate, in steel support end plate wherein an end be provided with outstanding fulcrum,
Other establish a telescopic that connects with active headgear, with the headstock alives of telescopic socket, form one between this works headstock and the telescopic head and can irritate sand and unload the sandbox of sand, telescopic has the axial spacing that jack reaches pair gads can be installed with active.
Preferably, the steel of described active head supports does steel plate after the end plate stage casing is provided with a jack, and it protrudes in the radially perisporium of fulcrum.
But preferred described telescopic comprises a sandbox shrouding, is welded in the wherein annular outboard steel plate of the described fulcrum of an end face socket of sandbox shrouding, described headstock alive comprises an annular outboard steel plate, is welded in the sandbox shrouding in annular outboard steel plate internal perisporium stage casing, this sandbox shrouding headstock inner space of will living separates socket section and the canned paragraph that becomes to be sheathed on telescopic, the socket section upper and lower sides perisporium of contiguous sandbox shrouding is respectively equipped with one and irritates Sha Kou, and unload the sand mouth, between the two sandbox shroudings of live headstock and telescopic and form described sandbox.
Preferably, the fulcrum of described active head comprises is located at the steel plate of putting more energy into that steel supports the end plate stage casing, and the both wings floor of being located at the steel plate two opposite sides of putting more energy into, both wings floor and put more energy into and have spacing between the steel plate, do the upper and lower sides that steel plate protrudes in the steel plate of putting more energy into behind the described jack, be provided with the groined type stiffener in the annular outboard steel plate scope of described telescopic, it is correspondingly to be plugged in the both wings floor and to put more energy between the steel plate.
Preferably, be provided with weather strip between the end of described telescopic and the headstock internal perisporium alive.
Preferably, be provided with weather strip between the end of described telescopic and the headstock internal perisporium alive, and be provided with outstanding pad blend stop in the middle of the telescopic end.
Preferably, the canned paragraph of described headstock alive is provided with the groined type stiffener.
Implement after the above-mentioned technological means, when use was supported in construction, active head is fixedly connected on diaphragm wall in elder generation or steel encloses on the purlin.Then telescopic is inserted in the active head, the sheathed headstock alive in the telescopic outside by the telescopic and the sand capacity number in the formed sandbox between the headstock of living, is regulated telescopic and the pattern length of the headstock of living, when irritating sand, only need to irritate sand and get final product by sandbox filling sand mouth suitable for reading.Place jack in active both sides, behind the stress application, the space that produces after the bearing length adjustment is tamped by double gad.
During the steel supporting removal, only the sand mouth that unloads under the sandbox need be opened, sand flow in the sandbox is gone out, a certain amount of displacement can take place in telescopic, the gad position produces a certain amount of space, double gad can take out, and can unload a power easily like this, need not apply extra-stress dismounting to support and support and influence the concrete structure or because take to cut gad unloading and the active head of damage support.
Therefore, the utlity model has substantial characteristics and showing progressive.Compare with the conventional steel support, it has several big advantages: (1) is supported the head of living and is adopted a double gad, has solved the transversely unstable problem of support.(2) increase the sandbox structure in steel supports, can unload a power easily.Cost is saved in the recyclable repeated use of gad.(3) support of the steel after improvement installation and dismounting are all very convenient, and strong operability does not have potential safety hazard in actual foundation ditch uses, help applying.
With diameter 800MM steel pipe is example, and through test, the steel after the improvement supports ultimate bearing capacity can reach 5000KN, thereby can control deformation of wall effectively, reduces the influence to peripheral building that causes because of foundation pit deformation, has reduced engineering risk.New in addition shaped steel supports also has reusable rate height, and cost is low, and advantages such as convenient are supported in dismounting.
Description of drawings
Fig. 1 is plane combination generalized section, i.e. the a-a sectional drawing of Fig. 2 of the present utility model;
Fig. 2 is combination end face generalized section of the present utility model, i.e. the d-d sectional drawing of Fig. 1;
Fig. 3 overlooks combination generalized section, i.e. the b-b sectional drawing of Fig. 2 for the utility model Fig. 1's;
Fig. 4 is the combination end face generalized section of other direction of the present utility model, i.e. the c-c sectional drawing of Fig. 1;
Fig. 5 is the generalized section of the active head of the utility model;
Fig. 6 looks generalized section for the right side of the active head of the utility model, i.e. the e-e sectional drawing of Fig. 5;
Fig. 7 is the top cross-sectional view of the active head of the utility model, i.e. the f-f sectional drawing of Fig. 5; And
Fig. 8 looks generalized section for the left side of the active head of the utility model, i.e. the g-g sectional drawing of Fig. 7.
The specific embodiment
Fig. 1 shows, the structure that folding wedge sandbox steel supports is by active 1, telescopic 2, and the headstock 3 of living is formed.A wherein active 1(is shown in Fig. 5 ~ 8) comprise that steel supports end plate 4, be welded in and support end plate 4 and wherein do steel plate 5 behind the jack on a surface, connect steel plate 6, put more energy into steel plate 7 and both wings floor 8, as shown in Figure 7, the steel plate of putting more energy into is to be the U font to be welded in steel support end plate 4 with two free ends, do steel plate 5 behind the jack and then be positioned at the steel plate 7 of putting more energy into, and protrude in the upper and lower sides of the steel plate 7 of putting more energy into as shown in Figure 5, with when constructing, as shown in Figure 1 by the ejection of jack institute, Fig. 7 and for example, shown in 8, both wings floor 8 is front and back sides of being located at the steel plate 7 of putting more energy into respectively, an and intersegmental distance when protecting with the steel plate 7 of putting more energy into, between both wings floor 8 and steel support end plate 4, weld fixing in addition with several pieces leg-of-mutton steel plates 6 that are connected, support both wings floor 8 with reinforcement, described steel supports end plate 4, do the preferable selection of steel plate 5 employed steel plate thickness behind the jack and be respectively 50MM, 20MM.Form with foundation ditch liner, foundation ditch cell wall and to fixedly connected for described active 1, the described steel plate of putting more energy into constitutes a fulcrum with both wings floor 8, also can displacement for described telescopic 2 sockets.
See also shown in Fig. 1,2 and 3, telescopic 2 comprises a sandbox shrouding 13, is welded in sandbox shrouding 13 wherein the groined type stiffener 11 and the annular outboard steel plate 12 of an end face, this groined type stiffener 11 and be positioned at the scope of annular outboard plate 12, and telescopic 2 is provided with the periphery and the stage casing of sandbox shrouding 13 these end faces and is respectively equipped with weather strip 20, pad blend stop 21.
Described headstock alive 3 comprises an annular outboard steel plate 15, be welded in the sandbox shrouding 16 in annular outboard steel plate 15 internal perisporium stage casings, this sandbox shrouding 16 headstock 3 inner spaces of will living separate into socket section 300 and canned paragraph 301, be provided with groined type stiffener 14 in canned paragraph 301, this groined type stiffener 14 is fixing with annular outboard steel plate 15 internal perisporiums and 16 welding of sandbox shrouding, to promote structural strength, in addition in the annular outboard steel plate 15 upper and lower sides perisporiums of socket section 300, contiguous sandbox shrouding 16 places are provided with one respectively and irritate sand mouth 18, unload sand mouth 19, be respectively equipped with into sand valve on the sand mouth 19 in irritating sand mouth 18 and unloading, unload the sand valve.The headstock 3 of living is the periphery walls that are sheathed on the annular outboard steel plate 12 of telescopic 2 by socket section 300, between two sandbox shroudings 13,16, forming a sandbox 17, and described filling sand mouth 18 and unload the scope that sand mouth 19 promptly is positioned at sandbox 17.
Support when using, elder generation is fixedly connected on diaphragm wall with active 1 or steel encloses on the purlin, then the groined type stiffener 11 of telescopic 2 is inserted in active 1 both wings floor 8 and puts more energy between the steel plate 7, telescopic 2 outsides are sheathed described headstocks 3 alive, can be by the pattern length of how much regulating telescopic 2 and headstock 3 alive of sand capacity in the sandbox 17 between the two, when irritating sand, only needing to irritate sand by sandbox filling sand mouth 18 suitable for reading gets final product, reach sealing effectiveness by weather strip 20 between telescopic 2 ends and headstock 3 internal perisporiums alive in addition, convenient for guaranteeing the dismounting support, ordinary circumstance drag box 17 length need reach 10mm.Before the stress application, jack is placed on the jack position 10 of doing behind telescopic 2 and the jack between the steel plate 5, behind the stress application, the space that produces after the bearing length adjustment (being gad position 9) tamped by double gad.
During the steel supporting removal, only the sand mouth 19 that unloads under the sandbox 17 need be opened, sand flow in the sandbox 17 is gone out, a certain amount of displacement promptly can take place in telescopic 2, the gad position produces a certain amount of space, double gad can take out, and can unload a power easily like this, need not apply extra-stress dismounting to support and support and influence the concrete structure or because take to cut gad unloading and the active head of damage support.
Claims (8)
1. folding wedge sandbox steel bracing or strutting arrangement, it is provided with an active head, it is characterized in that:
Described active head comprise a steel support end plate, in steel support end plate wherein an end be provided with outstanding fulcrum; Other establish a telescopic that connects with active headgear, with the headstock alives of telescopic socket, form one between this works headstock and the telescopic head and can irritate sand and unload the sandbox of sand, telescopic has the axial spacing that jack reaches pair gads can be installed with active.
2. folding wedge sandbox steel bracing or strutting arrangement according to claim 1 is characterized in that:
The steel of described active head supports does steel plate after the end plate stage casing is provided with a jack, and it protrudes in the radially perisporium of fulcrum.
3. according to claim 1 or 2 described folding wedge sandbox steel bracing or strutting arrangements, it is characterized in that:
But described telescopic comprises a sandbox shrouding, is welded in the wherein annular outboard steel plate of the described fulcrum of an end face socket of sandbox shrouding,
Described headstock alive comprises an annular outboard steel plate, is welded in the sandbox shrouding in annular outboard steel plate internal perisporium stage casing, this sandbox shrouding headstock inner space of will living separates socket section and the canned paragraph that becomes to be sheathed on telescopic, the socket section upper and lower sides perisporium of contiguous sandbox shrouding is respectively equipped with one and irritates Sha Kou, and unload the sand mouth, between the two sandbox shroudings of live headstock and telescopic and form described sandbox.
4. folding wedge sandbox steel bracing or strutting arrangement according to claim 3 is characterized in that:
The fulcrum of described active head comprises is located at the steel plate of putting more energy into that steel supports the end plate stage casing, and the both wings floor of being located at the steel plate two opposite sides of putting more energy into, and both wings floor and put more energy into and have spacing between the steel plate is done the upper and lower sides that steel plate protrudes in the steel plate of putting more energy into behind the described jack,
Be provided with the groined type stiffener in the annular outboard steel plate scope of described telescopic, it is correspondingly to be plugged in the both wings floor and to put more energy between the steel plate.
5. folding wedge sandbox steel bracing or strutting arrangement according to claim 4 is characterized in that:
Be provided with weather strip between the end of described telescopic and the headstock internal perisporium alive.
6. folding wedge sandbox steel bracing or strutting arrangement according to claim 4 is characterized in that:
Be provided with weather strip between the end of described telescopic and the headstock internal perisporium alive, and be provided with outstanding pad blend stop in the middle of the telescopic end.
7. folding wedge sandbox steel bracing or strutting arrangement according to claim 4 is characterized in that:
The canned paragraph of described headstock alive is provided with the groined type stiffener.
8. folding wedge sandbox steel bracing or strutting arrangement according to claim 6 is characterized in that:
The canned paragraph of described headstock alive is provided with the groined type stiffener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205940913U CN201857615U (en) | 2010-11-05 | 2010-11-05 | Steel support device of double-wedge foundry flask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205940913U CN201857615U (en) | 2010-11-05 | 2010-11-05 | Steel support device of double-wedge foundry flask |
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| Publication Number | Publication Date |
|---|---|
| CN201857615U true CN201857615U (en) | 2011-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205940913U Expired - Lifetime CN201857615U (en) | 2010-11-05 | 2010-11-05 | Steel support device of double-wedge foundry flask |
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| CN (1) | CN201857615U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184742A (en) * | 2011-12-27 | 2013-07-03 | 上海市第七建筑有限公司 | Support structure used for reinforcing lift foundation basement and support method thereof |
| CN103541365A (en) * | 2013-10-31 | 2014-01-29 | 北京工业大学 | Hoop type adjustable head used for inner support of foundation pit engineering and construction method thereof |
| CN105672669A (en) * | 2016-01-08 | 2016-06-15 | 浙江精工钢结构集团有限公司 | Funnel type sand box unloading device and method |
| CN108677965A (en) * | 2018-05-25 | 2018-10-19 | 云南建投基础工程有限责任公司 | Foundation pit assembled steel supports adjustable pressure device and its application method |
| CN110295607A (en) * | 2019-06-21 | 2019-10-01 | 中国一冶集团有限公司 | A kind of Larsen steel sheep pile support structure and method for supporting |
| CN110725170A (en) * | 2019-10-29 | 2020-01-24 | 杨楼城 | Pushing device for disassembling integral ballast bed |
| CN114991170A (en) * | 2022-06-23 | 2022-09-02 | 中国水利水电第七工程局有限公司 | Hollow interlayer concrete-filled steel tube supporting system and construction method thereof |
-
2010
- 2010-11-05 CN CN2010205940913U patent/CN201857615U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184742A (en) * | 2011-12-27 | 2013-07-03 | 上海市第七建筑有限公司 | Support structure used for reinforcing lift foundation basement and support method thereof |
| CN103541365A (en) * | 2013-10-31 | 2014-01-29 | 北京工业大学 | Hoop type adjustable head used for inner support of foundation pit engineering and construction method thereof |
| CN103541365B (en) * | 2013-10-31 | 2015-08-19 | 北京工业大学 | A kind of hood type segmented head for base pit engineering inner support and construction method thereof |
| CN105672669A (en) * | 2016-01-08 | 2016-06-15 | 浙江精工钢结构集团有限公司 | Funnel type sand box unloading device and method |
| CN108677965A (en) * | 2018-05-25 | 2018-10-19 | 云南建投基础工程有限责任公司 | Foundation pit assembled steel supports adjustable pressure device and its application method |
| CN110295607A (en) * | 2019-06-21 | 2019-10-01 | 中国一冶集团有限公司 | A kind of Larsen steel sheep pile support structure and method for supporting |
| CN110725170A (en) * | 2019-10-29 | 2020-01-24 | 杨楼城 | Pushing device for disassembling integral ballast bed |
| CN110725170B (en) * | 2019-10-29 | 2021-04-13 | 中铁二十四局集团南昌铁路工程有限公司 | Pushing device for disassembling integral ballast bed |
| CN114991170A (en) * | 2022-06-23 | 2022-09-02 | 中国水利水电第七工程局有限公司 | Hollow interlayer concrete-filled steel tube supporting system and construction method thereof |
| CN114991170B (en) * | 2022-06-23 | 2023-06-13 | 中国水利水电第七工程局有限公司 | Hollow interlayer steel pipe concrete supporting system and construction method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI TUNNEL ENGINEERING CO., LTD. Free format text: FORMER OWNER: SHANGHAI TUNNEL ENGINEERING CO LTD Effective date: 20150119 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200082 TO: 200232 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20150119 Address after: 200232 Shanghai Wanping Road No. 1099 Patentee after: SHANGHAI TUNNEL ENGINEERING CO., LTD. Address before: 200082 No. 118, Dalian Road, Shanghai, Yangpu District Patentee before: Shanghai Tunnel Engineering Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110608 |