CN206830202U - A kind of tunnel steelframe connecting node - Google Patents
A kind of tunnel steelframe connecting node Download PDFInfo
- Publication number
- CN206830202U CN206830202U CN201720491155.9U CN201720491155U CN206830202U CN 206830202 U CN206830202 U CN 206830202U CN 201720491155 U CN201720491155 U CN 201720491155U CN 206830202 U CN206830202 U CN 206830202U
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- Prior art keywords
- shelf
- steel arch
- pipe sleeve
- wing plate
- equal
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Abstract
The utility model discloses a kind of tunnel steelframe connecting node, the attachment structure includes the steel arch-shelf of sectional dimension identical first and the second steel arch-shelf, and the first described steel arch-shelf and the second steel arch-shelf are connected as one by pipe sleeve.The rectangular in cross-section tubulose of the pipe sleeve, and the radius of curvature of the pipe sleeve is equal with the radius of curvature of first steel arch-shelf and the junction of the second steel arch-shelf.Block card is respectively welded on the wing plate of the both sides of underlying first steel arch-shelf, and the length M of the block card is more than or equal to the width b of the first steel arch-shelf wing plate, less than or equal to twice of the first steel arch-shelf wing plate width b.The attachment structure is connected two section steel arch-shelfs by pipe sleeve, is not only reduced labor strength, is shortened the duration, and safety coefficient is high.
Description
Technical field
The Construction Technique of Underground Works field such as tunnel is the utility model is related to, is specifically applied in Tunnel
In a kind of assembled tunnel steelframe connecting node of steel arch-shelf.
Background technology
With the needs of China's economic development, infrastructure construction is configured to another the important engine for leading economic development,
Wherein the communications and transportation construction such as highway and railway occupies important proportion, and China constitutes about territory as more men of mountain country, mountain region area
The 75% of the gross area, tunnel turn into the importance of China's traffic system construction.China's tunnel construction faces lot of challenges simultaneously,
Build the complex conditions such as geological conditions more sophisticated, shear-zone, shallow embedding, weak surrounding rock to increase, while tunnel excavation section is more next
Bigger, single-hole with four lanes tunnel is more and more, and tunnel construction faces big challenge safely.
Preliminary bracing quickly can provide supporting reaction to tunnel in tunnel construction work progress, be the important of tunnel support
Part, first Zhi Sudu is inadequate, then can not close scar supporting country rock in time, cause failure and deformation of surrounding rocks, or even pacify
Full thing.The widely used steel arch-shelf of Tunnel and anchor net unit support at present, steel arch-shelf is typically assembled by more piece, each section
Between connected by junction steel plate with high-strength bolt, general each node needs 4~6 high-strength bolts to connect, and bow member adds
Work bolt hole position accuracy demand is high, and the operating time is grown during assembly at the scene, when single-unit bow member weight is larger, installation
Labor strength is big, and set-up time length is unfavorable for the quick supporting of country rock.
Therefore, it is necessary to which a kind of novel steel frame connected mode, can realize steel arch-shelf quick-assembling, it is strong to reduce worker's work
Degree, shorten the duration, tunnel construction is provided safeguard safely.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of tunnel steelframe connecting node, the attachment structure passes through pipe
Set connects two section steel arch-shelfs, not only reduces labor strength, shortens the duration, and safety coefficient is high.
The technical scheme in the invention for solving the technical problem is：
A kind of tunnel steelframe connecting node, including the steel arch-shelf of sectional dimension identical first and the second steel arch-shelf, it is described
The first steel arch-shelf and the second steel arch-shelf connected as one by pipe sleeve；
The rectangular in cross-section tubulose of the pipe sleeve, and the radius of curvature of the pipe sleeve and first steel arch-shelf and the second steel
The radius of curvature of the junction of bow member is equal；
The block card for limiting pipe sleeve movement is welded with underlying first steel arch-shelf.
Further, block card, and the length M of the block card are respectively welded on the wing plate of the both sides of first steel arch-shelf
More than or equal to the width b of the first steel arch-shelf wing plate, less than or equal to twice of the first steel arch-shelf wing plate width b.
Further, described block card is formed using a diameter of 8-22mm reinforcement fabrication.
Further, the length of the pipe sleeve is more than 3 times of the first steel arch-shelf cross-sectional length, less than first steel
10 times of bow member cross-sectional length.
Further, the cross-sectional length l of the length L of the pipe sleeve inwall and first steel arch-shelf difference is 2-16mm,
The cross-sectional width b of the width B of the pipe sleeve inwall and first steel arch-shelf difference is 2-16mm.
Further, the wall thickness T of the pipe sleeve is more than or equal to the wing plate thickness t of the first steel arch-shelf, more than or equal to the first steel
1.5 times of the wing plate thickness t of bow member.
The beneficial effects of the utility model are：
1st, simple structure, easy for installation；Traditional high-strength bolt connects not only processed complex with steel plate, and assembled time-consuming,
Delay the duration；Connected mode processing of the present utility model is simple, assembled easy, quick.
2nd, bearing strength is big, safety coefficient is high；Traditional connected mode is connected by screw bolts, due to the essence in work progress
No longer in an order of magnitude, construction precision is difficult to ensure that the precision of degree and machining, therefore often occurs that bolt hole can not
The situation of alignment, when there is bolt hole not align, scene can only no longer install, and turn into potential safety hazard；Company of the present utility model
Mode once mounting is connect, pipe sleeve intensity is big, and safety coefficient is high.
3rd, using connected mode of the present utility model, installation is simple, quickly, not only reduces the labor intensity of worker, and
And preliminary bracing can be rapidly completed, improve the safety coefficient of tunnel construction.
Brief description of the drawings
Fig. 1 is the structural representation after steel arch-shelf splicing is completed；
Fig. 2 is the mplifying structure schematic diagram of part A in Fig. 1；
Fig. 3 is the mplifying structure schematic diagram of part B in Fig. 1；
Fig. 4 is Fig. 3 A direction schematic diagrams；
Fig. 5 is the A-A sectional views in Fig. 4.
In figure：1- pipe sleeves, the steel arch-shelfs of 21- first, the steel arch-shelfs of 22- second, 3- block cards.
Embodiment
As depicted in figs. 1 and 2, a kind of tunnel includes the first steel arch-shelf 21, the and of the second steel arch-shelf 22 with steelframe connecting node
The pipe sleeve 1 that described the first steel arch-shelf 21 and the second steel arch-shelf 22 are connected as one, the first described steel arch-shelf 21 and second
The sectional dimension of steel arch-shelf 22 is identical.
As shown in Fig. 2 the rectangular in cross-section tubulose of the pipe sleeve 1, and the radius of curvature of the pipe sleeve 1 and first steel
The radius of curvature of the junction of the steel arch-shelf 22 of bow member 21 and second is equal.As shown in Figure 1, Figure 2 and Figure 3, underlying first
The block card 3 for limiting the movement of pipe sleeve 1 is welded with steel arch-shelf 21, as a kind of embodiment, described in the present embodiment
Block card 3 using a diameter of 8-22mm reinforcing bar.Further, as shown in figure 4, in order to guarantee to carry out reliably pipe sleeve 1
Limitation, be respectively welded block card 3 on the wing plate of the both sides of first steel arch-shelf 21, and the length M of the block card 3 is more than etc.
In the width b of the wing plate of the first steel arch-shelf 21, less than or equal to twice of the wing plate width b of the first steel arch-shelf 21, i.e. 2b >=M
≥b。
Herein, why block card 3 is welded on underlying first steel arch-shelf 21, primarily to convenient installation,
If due to welding block card 3 on the first steel arch-shelf 21 of lower section, when pipe sleeve 1 is enclosed on the first steel arch-shelf 21, pipe sleeve 1 is not
It can slide under gravity.When the second steel arch-shelf 22 is inserted into pipe sleeve 1, it is not required that the second steel arch-shelf 22 is entered
Row is individually fixed, with anti-slip, reduces the labor intensity of worker, and the complexity of installation.
Further, the length of the pipe sleeve 1 is more than 3 times of the cross-sectional length of the first steel arch-shelf 21, less than described the
10 times of the cross-sectional length of one steel arch-shelf 21.The requirement of bonding strength, and convenient installation can either so be met.
Further, as shown in figure 5, the length L of the inwall of the pipe sleeve 1 and first steel arch-shelf 21 cross-sectional length l
Difference be 2-16mm, the width B of the inwall of pipe sleeve 1 and the cross-sectional width b of first steel arch-shelf 21 difference are 2-16mm.This
The main purpose that sample is set is, because the precision of the precision in work progress and machining is no longer in an order of magnitude, so
Occur that steel arch-shelf is uncertain close to the distance between country rock side and country rock.When steel arch-shelf between country rock side and country rock away from
During from less than 20cm, now activity is less likely to occur steel arch-shelf, therefore can select larger pipe sleeve 1, to facilitate installation, accelerates
Construction progress；When steel arch-shelf is more than 20cm close to the distance between country rock side and country rock, now steel arch-shelf easily generation activity,
Therefore two section steel arch-shelfs can be more fixedly secured with the pipe sleeve 1 of selection of small.
Further, in order to ensure bonding strength, as shown in figure 5, the wall thickness T of the pipe sleeve 1 is more than or equal to the first steel arch
The wing plate thickness t of frame 21, more than or equal to 1.5 times of the wing plate thickness t of the first steel arch-shelf 21, i.e. 1.5t >=T >=t.
Block card 3 is welded during onsite application first on the first steel arch-shelf 21, the first steel arch-shelf of block card 3 then will be welded
21 are fixedly mounted on country rock, are then enclosed on the half of pipe sleeve 1 on the first steel arch-shelf 21 having good positioning, then by the second steel arch
Frame 22 is inserted in pipe sleeve 1, is realized the connection of two section steel arch-shelfs, is successively often saved steel arch-shelf by such a connected mode and spliced
Into.
Claims (6)
1. a kind of tunnel steelframe connecting node, including the steel arch-shelf of sectional dimension identical first and the second steel arch-shelf, its feature
It is：Described the first steel arch-shelf and the second steel arch-shelf is connected as one by pipe sleeve；
The rectangular in cross-section tubulose of the pipe sleeve, and the radius of curvature of the pipe sleeve and first steel arch-shelf and the second steel arch-shelf
Junction radius of curvature it is equal；
The block card for limiting pipe sleeve movement is welded with underlying first steel arch-shelf.
A kind of 2. tunnel steelframe connecting node according to claim 1, it is characterised in that：The two of first steel arch-shelf
Block card is respectively welded on the wing plate of side, and the length M of the block card is more than or equal to the width b of the first steel arch-shelf wing plate,
Less than or equal to twice of the first steel arch-shelf wing plate width b.
A kind of 3. tunnel steelframe connecting node according to claim 2, it is characterised in that：Described block card uses diameter
Formed for 8-22mm reinforcement fabrication.
A kind of 4. tunnel steelframe connecting node according to claim 1, it is characterised in that：The length of the pipe sleeve is more than
3 times of the first steel arch-shelf cross-sectional length, less than 10 times of the first steel arch-shelf cross-sectional length.
A kind of 5. tunnel steelframe connecting node according to claim 1, it is characterised in that：The length of the pipe sleeve inwall
The cross-sectional length l of L and first steel arch-shelf difference is 2-16mm, the width B of the pipe sleeve inwall and first steel arch-shelf
Cross-sectional width b difference be 2-16mm.
A kind of 6. tunnel steelframe connecting node according to claim 1, it is characterised in that：The wall thickness T of the pipe sleeve is big
In the wing plate thickness t equal to the first steel arch-shelf, more than or equal to 1.5 times of the wing plate thickness t of the first steel arch-shelf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720491155.9U CN206830202U (en) | 2017-05-04 | 2017-05-04 | A kind of tunnel steelframe connecting node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720491155.9U CN206830202U (en) | 2017-05-04 | 2017-05-04 | A kind of tunnel steelframe connecting node |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206830202U true CN206830202U (en) | 2018-01-02 |
Family
ID=60769626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720491155.9U Expired - Fee Related CN206830202U (en) | 2017-05-04 | 2017-05-04 | A kind of tunnel steelframe connecting node |
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| CN (1) | CN206830202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392516A (en) * | 2021-01-07 | 2021-02-23 | 通用技术集团工程设计有限公司 | Super large section chamber fractional construction steel bow member combination formula temporary support device |
-
2017
- 2017-05-04 CN CN201720491155.9U patent/CN206830202U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392516A (en) * | 2021-01-07 | 2021-02-23 | 通用技术集团工程设计有限公司 | Super large section chamber fractional construction steel bow member combination formula temporary support device |
| CN112392516B (en) * | 2021-01-07 | 2021-08-27 | 通用技术集团工程设计有限公司 | Super large section chamber fractional construction steel bow member combination formula temporary support device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Libo Inventor after: Shen Jiajia Inventor after: Chen Guangyong Inventor after: Yang Zhongni Inventor after: Zhang Qingning Inventor after: Teng Fangyong Inventor after: Wang Meilian Inventor after: Guo Yongfei Inventor after: Yang Xue Inventor after: Zhao Yonglin Inventor after: Liu Weipeng Inventor after: Ma Hongliang Inventor after: Xu Yonghong Inventor before: Yang Libo Inventor before: Shen Jiajia Inventor before: Chen Guangyong Inventor before: Yang Zhongni Inventor before: Zhang Qingning Inventor before: Teng Fangyong Inventor before: Wang Meilian Inventor before: Guo Yongfei Inventor before: Yang Xue Inventor before: Zhao Yonglin Inventor before: Liu Weipeng Inventor before: Ma Hongliang Inventor before: Xu Yonghong |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 Termination date: 20180504 |