CN217327350U - Tunnel steel frame longitudinal connecting structure capable of being constructed quickly - Google Patents
Tunnel steel frame longitudinal connecting structure capable of being constructed quickly Download PDFInfo
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- CN217327350U CN217327350U CN202221100248.1U CN202221100248U CN217327350U CN 217327350 U CN217327350 U CN 217327350U CN 202221100248 U CN202221100248 U CN 202221100248U CN 217327350 U CN217327350 U CN 217327350U
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Abstract
The utility model provides a tunnel steelframe longitudinal connection structure that can be under construction fast can improve the longitudinal stability that efficiency of construction and steelframe were strutted, relates to tunnel support technical field. The utility model provides a tunnel steelframe longitudinal connection structure that can be under construction fast, is including setting up many longitudinal connection muscle between adjacent steelframe, and is adjacent the steelframe side in opposite directions has set firmly the sleeve pipe of horizontal extension, longitudinal connection muscle is U type structure, including vertical section with set up at vertical section both ends to peg graft respectively in both sides horizontal section in the sleeve pipe, the one end of horizontal section passes correspondingly the sleeve pipe.
Description
Technical Field
The utility model relates to a tunnel supporting technology field, concretely relates to tunnel steelframe longitudinal connection structure that can be under construction fast.
Background
The tunnel steel frame support is a support measure commonly involved in tunnel construction and is formed by connecting a plurality of longitudinally arranged steel frames through longitudinal connecting ribs. The longitudinal stability of the steel frame support directly influences the safety and the construction progress of tunnel construction. The steelframe is installed and is gone on immediately after tunnel excavation is just spouted and accomplish, and the longitudinal joint muscle setting of traditional steelframe leans on the country rock side at the steelframe, adopts the welding in the hole to assemble, arranges that the time is long, and the artifical demand is big, and work efficiency is low, can not satisfy the demand of current high-efficient construction. In addition, when a gas tunnel is excavated, in-tunnel welding is not generally allowed.
Application number 201420128358.8's utility model discloses a tunnel steel frame supporting construction, including 2 at least steelframes to tunnel longitudinal arrangement, adjacent connect through the steel band between the steelframe, the steel band passes through the stock and connects on the steelframe. Although the longitudinal connecting ribs (steel belts) can be installed in the supporting structure without adopting a mode of welding and assembling in the holes, the problem that the longitudinal connecting ribs are not convenient to assemble still exists. In addition, the longitudinal connecting ribs in the structure have poor force bearing effect on the steel frame, and the longitudinal stability of the steel frame support is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a tunnel steelframe longitudinal connection structure that can be under construction fast is provided, the longitudinal stability that efficiency of construction and steelframe were strutted can be improved.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a tunnel steelframe longitudinal connection structure that can be under construction fast, is including setting up many longitudinal connection muscle between adjacent steelframe, and is adjacent the steelframe side in opposite directions has set firmly the sleeve pipe of horizontal extension, longitudinal connection muscle is U type structure, including vertical section with set up at vertical section both ends to peg graft respectively in both sides horizontal section in the sleeve pipe, the one end of horizontal section passes correspondingly the sleeve pipe.
Further, one end of the transverse section passing through the sleeve is provided with a cotter pin which is matched with the sleeve to prevent the transverse section from being separated from the sleeve.
Furthermore, the inner side of the connecting corner of the longitudinal section and the transverse section is provided with a reinforcing rib, one end of the reinforcing rib is fixedly connected with the longitudinal section, and the other end of the reinforcing rib is fixedly connected with the transverse section.
Further, the steelframe is 8 word muscle grid steelframe, sets up the 8 word muscle on main muscle including main muscle and a plurality of horizontal interval, both sides are equipped with the steel sheet around the main muscle, the sleeve pipe welding is in the side of steel sheet to be located between two adjacent 8 word muscle.
Further, one end of the sleeve and one end of one of the two adjacent 8-shaped ribs have an overlapped part, and the other end of the sleeve and one end of the other of the two adjacent 8-shaped ribs also have an overlapped part.
Further, two adjacent rows of the longitudinal connecting ribs are arranged in a staggered mode.
Further, the longitudinal connecting rib is a steel bar.
The utility model has the advantages that:
the utility model discloses a tunnel steelframe longitudinal connection structure sets up the longitudinal joint muscle between the adjacent steelframe into U type structure to realize connecting together the adjacent steelframe through the mode that the horizontal section at its both ends is pegged graft with the sleeve pipe on the steelframe of both sides, the installation of longitudinal joint muscle can not need on-the-spot welding, and it is convenient to connect, has reduced the tunnel steelframe longitudinal connection reinforcement operation's construction complexity, can improve and strut the efficiency of construction, reduces construction cost;
the sleeve pipe transversely extends the setting, and horizontal section is pegged graft at the sleeve pipe, and one end passes and corresponds the sleeve pipe can increase the transverse connection length between longitudinal tie muscle and the steelframe, and the load effect of longitudinal tie muscle is better, can make the atress of steelframe more even, and the steelframe is difficult for bending deformation, and the longitudinal stability that the steelframe was connected and is formed was strutted is better, and the security is higher.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view at A of FIG. 1;
FIG. 3 is a schematic view of the arrangement of longitudinal connecting ribs when the steel frame is an 8-shaped rib grid steel frame;
FIG. 4 is an enlarged view at B of FIG. 1;
shown in the figure: the steel frame comprises a steel frame 1, longitudinal connecting ribs 2, a sleeve 11, main ribs 12, 8-shaped ribs 13, steel plates 14, longitudinal sections 21, transverse sections 22, split pins 23, reinforcing ribs 24 and a superposition part 111.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
The utility model discloses in, vertically indicate the length direction in tunnel, transversely indicate the width direction in tunnel.
As shown in fig. 1 and 2, the utility model discloses a tunnel steelframe longitudinal connection structure that can be under construction fast, including setting up between adjacent steelframe 1 in order to connect into holistic many longitudinal connection muscle 2 with adjacent steelframe. The above structure is the same as the conventional structure. The longitudinal connecting ribs 2 are usually steel bars, but other materials can be used. For convenient on-the-spot longitudinal stability who installs longitudinal tie bar 2 and guarantee the steelframe of connecting, the utility model discloses in, it is adjacent 1 side in opposite directions of steelframe has set firmly horizontal extension's sleeve pipe 11, longitudinal tie bar 2 is U type structure, including longitudinal section 21 with set up at longitudinal section 21 both ends to peg graft respectively in both sides horizontal section 22 in the sleeve pipe 11, the one end of horizontal section 22 is passed and is corresponded sleeve pipe 11.
After the structure is adopted, the sleeve 11 can be arranged on the steel frame 1 together when the steel frame is produced. The utility model discloses a tunnel steelframe longitudinal joint structure sets longitudinal joint muscle 2 between adjacent steelframe 1 to U type structure to the mode of pegging graft of sleeve pipe 11 on transverse section 22 and the both sides steelframe through its both ends realizes linking together adjacent steelframe, and the installation of longitudinal joint muscle can not need the field weld, and convenient connection has reduced the construction complexity of tunnel steelframe longitudinal joint reinforcement operation, can improve and strut the efficiency of construction. In addition, because longitudinal connecting rib mainly undertakes fore-and-aft pulling force or pressure between the adjacent steelframe, and this pulling force or pressure are along the extending direction (horizontal) distribution of steelframe, the utility model discloses set longitudinal connecting rib 2 to U type structure, sleeve pipe 11 transversely extends the setting, and horizontal section 22 is pegged graft at sleeve pipe 11, and one end passes and corresponds sleeve pipe 11, so, can increase the transverse connection length between longitudinal connecting rib 2 and the steelframe 1, the load effect of longitudinal connecting rib is better, can make the atress of steelframe more even, and the steelframe is difficult bending deformation, and the longitudinal stability that the steelframe formed was connected is strutted is better.
Because the longitudinal connecting rib mainly bears the longitudinal tension or pressure between the adjacent steel frames, the longitudinal connecting rib is not easy to fall off after being inserted in the sleeve 11, but has the risk of falling off when being subjected to a larger external force. To this end, the end of the transverse segment 22 passing through said sleeve 11 is provided with a cotter pin 23 cooperating with the sleeve 11 to prevent the transverse segment 22 from coming out of the sleeve. The cotter pin 23 in cooperation with the sleeve 11 prevents the transverse section 22 from passing through the end of the sleeve and out of the sleeve, thereby preventing the longitudinal tie bar (transverse section 22) from coming off the sleeve.
Because the longitudinal connecting rib 2 is in a U-shaped structure, the connecting corners of the longitudinal section 21 and the transverse section 22 are easy to deform according to the stress characteristics of the longitudinal connecting rib 2. In order to prevent the deformation of the longitudinal connecting rib 2, a reinforcing rib 24 is arranged on the inner side of the connecting corner of the longitudinal section 21 and the transverse section 22, one end of the reinforcing rib 24 is fixedly connected with the longitudinal section 21, and the other end of the reinforcing rib 24 is fixedly connected with the transverse section 22. Specifically, the fastening may be performed by welding, bolting, or an integral structure. It will be appreciated that the reinforcing bars 2 may be pre-arranged on the longitudinal beads 2 before the longitudinal beads 2 are installed. The structure can further ensure the connection stability between steel frames.
The steel frame can adopt I-shaped steel or a grid steel frame, wherein the grid steel frame can adopt the existing 8-shaped rib grid steel frame. The cost of 8 word muscle grid steelframes is lower, therefore, 8 word muscle grid steelframes are preferred to the steelframe. When steelframe 1 was 8 word muscle grid steelframes, according to 8 word muscle grid steelframe structure, steelframe 1 includes that main muscle 12 and a plurality of horizontal interval set up 8 word muscle 13 on main muscle 12, and main muscle 12 comprises four reinforcing bars that are the rectangle and arrange, both sides are equipped with steel sheet 14 around main muscle 12. Because the 8-shaped ribs 13 of the 8-shaped rib grid steel frame are arranged at intervals, and the middle interval part of the adjacent 8-shaped ribs of the steel frame is a fragile part, in order to further ensure the longitudinal stability of the steel frame, the sleeve 11 is welded on the side surface of the steel plate 14 (see fig. 3) and is positioned between the two adjacent 8-shaped ribs 13 (see fig. 2). The sleeve can be arranged between every two adjacent 8-shaped ribs 13 of the steel frame, and can also be arranged between two partially adjacent 8-shaped ribs 13.
As shown in fig. 4, further, in a top view, one end of the sleeve 11 and one end of one of the two adjacent 8-shaped ribs 13 have an overlapping portion 111, and the other end and one end of the other of the two adjacent 8-shaped ribs 13 also have an overlapping portion 111. So, on pulling force or pressure between the steelframe can transmit the main muscle through 8 word muscle dispersion betterly, can further reduce the deformation of steelframe, the atress of steelframe is better, and the longitudinal stability that the steelframe was strutted is better.
The steel frame support is generally composed of 3 rows or more than 3 rows of steel frames, and as shown in fig. 1, two adjacent rows of the longitudinal connecting ribs 2 are arranged in a staggered mode. Two adjacent rows of the longitudinal connecting ribs 2 are arranged in a staggered manner, namely: the position of the longitudinal connecting rib 2 of the first row is the same as the position of the longitudinal connecting rib 2 of the second row. Two adjacent rows of longitudinal connecting ribs are arranged in a staggered mode, so that the longitudinal stability of the steel frame support can be further improved.
Claims (7)
1. The utility model provides a but tunnel steelframe longitudinal connection structure of quick construction, is including setting up many longitudinal tie muscle (2) between adjacent steelframe (1), its characterized in that: the lateral surfaces, opposite to each other, of the adjacent steel frames (1) are fixedly provided with transversely extending sleeves (11), the longitudinal connecting ribs (2) are of U-shaped structures and comprise longitudinal sections (21) and transverse sections (22) which are arranged at two ends of the longitudinal sections (21) and are respectively inserted into the sleeves (11) at two sides, and one ends of the transverse sections (22) penetrate through the corresponding sleeves (11).
2. The tunnel steel frame longitudinal connection structure capable of being rapidly constructed according to claim 1, wherein: one end of the transverse section (22) penetrating through the sleeve (11) is provided with a split pin (23) which is matched with the sleeve (11) to prevent the transverse section (22) from being separated from the sleeve (11).
3. The tunnel steel frame longitudinal connection structure capable of being rapidly constructed according to claim 1, wherein: and reinforcing ribs (24) are arranged on the inner sides of the connecting corners of the longitudinal sections (21) and the transverse sections (22), one ends of the reinforcing ribs (24) are fixedly connected with the longitudinal sections (21), and the other ends of the reinforcing ribs are fixedly connected with the transverse sections (22).
4. The tunnel steel frame longitudinal connection structure capable of being rapidly constructed according to claim 1, wherein: steelframe (1) is 8 word muscle grid steelframe, sets up 8 word muscle (13) on main muscle (12) including main muscle (12) and a plurality of transverse separation, both sides are equipped with steel sheet (14) around main muscle (12), sleeve pipe (11) welding is in the side of steel sheet (14) to be located between two adjacent 8 word muscle (13).
5. The rapid-construction tunnel steel frame longitudinal connection structure of claim 4, wherein: one end of the sleeve (11) is overlapped with one end of one of the two adjacent 8-shaped ribs (13), and the other end of the sleeve is also overlapped with one end of the other of the two adjacent 8-shaped ribs (13).
6. The tunnel steel frame longitudinal connection structure capable of being rapidly constructed according to claim 1, wherein: two adjacent rows of the longitudinal connecting ribs (2) are arranged in a staggered mode.
7. The tunnel steel frame longitudinal connection structure capable of being rapidly constructed according to claim 1, wherein: the longitudinal connecting ribs (2) are reinforcing steel bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221100248.1U CN217327350U (en) | 2022-05-09 | 2022-05-09 | Tunnel steel frame longitudinal connecting structure capable of being constructed quickly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221100248.1U CN217327350U (en) | 2022-05-09 | 2022-05-09 | Tunnel steel frame longitudinal connecting structure capable of being constructed quickly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217327350U true CN217327350U (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221100248.1U Active CN217327350U (en) | 2022-05-09 | 2022-05-09 | Tunnel steel frame longitudinal connecting structure capable of being constructed quickly |
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| Country | Link |
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| CN (1) | CN217327350U (en) |
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2022
- 2022-05-09 CN CN202221100248.1U patent/CN217327350U/en active Active
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