CN217206455U - Shield constructs reaction frame that starts - Google Patents
Shield constructs reaction frame that starts Download PDFInfo
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- CN217206455U CN217206455U CN202221059154.4U CN202221059154U CN217206455U CN 217206455 U CN217206455 U CN 217206455U CN 202221059154 U CN202221059154 U CN 202221059154U CN 217206455 U CN217206455 U CN 217206455U
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Abstract
The utility model discloses a shield starting reaction frame, which comprises a portal frame main body and a ring beam, wherein the ring beam is riveted with the portal frame main body, both ends positioned at the same side of the portal frame main body are provided with supporting parts for supporting the portal frame main body, and the top and the bottom positioned at the same side of the portal frame main body are provided with a plurality of cross braces; the portal frame main body comprises a plurality of box-type beam stand columns, box-type beam cross beams and oblique beams, the box-type beam cross beams are fixedly connected through the box-type beam stand columns, and the box-type beam cross beams are welded with the box-type beam stand columns. The utility model discloses set up the main part that portal frame main part and ring beam are connected and are formed the counter-force, the stull has formed firm triangle-shaped with the supporting part combination for the main part and has supported, and triangle-shaped supports the deformation that has reduced the supporting part to key support node's support, supports the atress that the pole setting has disperseed the bracing to let the bracing structure that warp easily obtain the reinforcement, avoid bearing structure's deformation.
Description
Technical Field
The utility model belongs to the technical field of shield constructs supporting equipment, concretely relates to shield constructs reaction frame of starting.
Background
When the shield is started, the shield machine needs a component for providing reaction force, namely a reaction frame. At present, a plurality of reaction frame structures are used, and the reaction frame structures mainly comprise reaction frame main bodies directly contacting a shield machine or a negative ring segment and a supporting system for supporting the main bodies. In the prior art, the supporting system mostly uses a steel beam or a steel column to provide a reaction force for the reaction frame main body, wherein the most common is to connect the reaction frame main body and the ground by using a round steel pipe with a certain diameter as an inclined strut, but the structure is usually longer due to the length of the inclined strut and is easy to bend and deform, thereby influencing the posture of the shield tunneling machine or the negative ring segment.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem among the prior art, the utility model provides a shield constructs reaction frame of starting has solved the problem that easily warp when current reaction frame bracing.
In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:
the utility model provides a shield constructs reaction frame that starts, its includes portal frame main part and collar tie beam, and the collar tie beam is riveted with portal frame main part, lies in portal frame main part and all is provided with the supporting part that is used for supporting the portal frame main part with the both ends of one side, lies in the portal frame main part and all installs a plurality of stull with the bottom with the top of one side.
The utility model discloses set up the main part that portal frame main part and ring beam are connected and are formed the counter-force, the stull has formed firm triangle-shaped with the supporting part combination for the main part and has supported, and triangle-shaped supports the deformation that has reduced the supporting part to key support node's support, supports the atress that the pole setting has disperseed the bracing to let the bracing structure that warp easily obtain the reinforcement, avoid bearing structure's deformation.
Furthermore, the portal frame main body comprises a plurality of box-shaped beam upright columns, box-shaped beam cross beams and oblique beams, the box-shaped beam cross beams are fixedly connected through the box-shaped beam upright columns, and the box-shaped beam cross beams are welded with the box-shaped beam upright columns; the two ends of the oblique beam are respectively welded with the box-shaped beam upright post and the box-shaped beam cross beam, and the bottom of the box-shaped beam cross beam is provided with a plurality of stiffening ribs.
The box-type beam cross beam is internally provided with a reinforcing rib for maintaining the rigidity of the whole structure, and the bottom of the box-type beam cross beam is provided with a bottom plate and a reinforcing rib for improving the supporting performance and the structural stability of the reaction frame main body; the box-type beam upright post is provided with the oblique beam at the intersection of the box-type beam cross beam joint, and the oblique beam can stabilize the structure and also can provide supporting force for the ring beam.
Furthermore, the ring beam comprises a support ring, a bottom plate and inner and outer webs, the inner and outer webs are welded with the bottom plate, and the support ring is welded with the inner and outer webs; the bottom plate is riveted with the box-type beam upright post and the box-type beam cross beam respectively.
The bottom plate outer fringe is the octagon, and the inner edge is circular, and the annular structure that interior outer web encloses slightly is less than the support ring, support ring and negative ring section of jurisdiction or shield structure machine jack direct contact, and the circle roof beam is riveted with the portal frame main part, and when the portal frame main part received the holding power of supporting part, the circle roof beam received the supporting part through the portal frame main part transmission equally and supported.
Furthermore, the supporting part comprises a plurality of inclined struts and supporting parts, and the supporting parts are sleeved on the inclined struts; two inclined struts positioned on the same side are fixedly connected through a supporting piece.
Furthermore, the inclined strut is fixedly connected to the intersection of the box beam cross beam and the inclined beam, and the inclined strut is a spiral steel round pipe.
The inclined strut is fixedly connected to the intersection of the box beam cross beam and the inclined beam and used for achieving the best force balance, the inclined strut is a spiral steel round pipe, and the inclined strut is used for sharing the force transmitted by the main body structure.
Furthermore, the supporting piece comprises a plurality of sleeves, a round sleeve and a supporting upright rod, wing plates are arranged on two sides of each sleeve, the sleeves are communicated with the round sleeve, stiffening ribs for improving the connecting strength of the sleeves and the round sleeve are arranged on two sides of each round sleeve, and the two sleeves are fixedly connected through bolts arranged on the wing plates; the two circular sleeves are fixedly connected through a supporting vertical rod, and the supporting vertical rod penetrates through the circular sleeves.
The stiffening rib is used for increasing the joint strength of sleeve and round sleeve, and the support node on the bracing is located the corresponding position of negative ring canal piece centre of a circle plane or close position to in order to reach the best reduction deformation effect, and can adjust according to the inhomogeneous power of the jack of the difference that probably appears when the tunnelling, the length of supporting the riser slightly is less than the distance between the round sleeve so that construction and installation.
The utility model discloses a shield constructs reaction frame of starting, its beneficial effect is:
the utility model discloses the main part that forms the counter-force is connected to the main part that sets up and the collar tie beam, and straight brace and bracing provide firm triangle-shaped for the main part and support, and triangle-shaped supports the support to key support node, has reduced the deformation of bracing, supports the pole setting and has disperseed the atress of bracing to let the bracing structure that warp easily obtain the reinforcement, solved the problem that bearing structure warp easily.
Drawings
Fig. 1 is a schematic structural diagram of a shield launching reaction frame.
Fig. 2 is a schematic diagram of a shield originating reaction frame collar beam.
Figure 3 is a schematic view of a shield originating reaction frame support.
Wherein, 1, a door type frame main body; 1.1, box beam columns; 1.2, a box beam cross beam; 1.3, an oblique beam; 2. a ring beam; 2.1, a support ring; 2.2, a bottom plate; 2.3, inner and outer webs; 3. bracing; 4. a support member; 4.1, a sleeve; 4.2, a round sleeve; 4.3, wing plates; 4.4, supporting upright rods, 5 and cross braces; 6. a stiffening rib.
Detailed Description
While the invention has been described in terms of the preferred embodiment and the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications, obvious within the spirit and scope of the appended claims, as defined by the appended claims.
According to a first embodiment of the present application, referring to fig. 1, a shield originating reaction frame of the present embodiment includes:
the portal frame comprises a portal frame body 1, ring beams 2, supporting parts and cross braces 5.
The ring beam 2 is riveted with the door type frame body 1, the supporting parts are arranged at two ends of the same side of the door type frame body 1, and the supporting parts are used for supporting the door type frame body.
The plurality of cross braces 5 are respectively positioned at the top and the bottom of the same side of the door type frame main body 1.
The above-described respective components will be described in detail below:
the portal frame body 1 specifically includes: box girder upright 1.1, box girder beam 1.2 and oblique girder 1.3.
A plurality of box-type beam cross beams 1.2 are fixedly connected through box-type beam upright columns 1.1, and the box-type beam cross beams 1.2 are welded with the box-type beam upright columns 1.1; the two ends of the oblique beam 1.3 are respectively welded with the box-shaped beam upright 1.1 and the box-shaped beam cross beam 1.2, and the bottom of the box-shaped beam cross beam 1.2 is provided with a plurality of stiffening ribs 6.
A plurality of reinforcing ribs are arranged in the box-shaped beam cross 1.2 and used for maintaining the rigidity of the whole structure, and a bottom plate and the reinforcing ribs are arranged at the bottom of the box-shaped beam cross 1.2 so as to improve the supporting performance and the structural stability of the portal frame main body 1.
The ring beam 2 specifically includes: a support ring 2.1, a bottom plate 2.2 and inner and outer webs 2.3.
The inner web plate and the outer web plate 2.3 are welded with the bottom plate 2.2, and the support ring 2.1 is welded with the inner web plate and the outer web plate 2.3; the bottom plate 2.2 is riveted with the box-type beam upright 1.1 and the box-type beam cross beam 1.2 respectively.
The outer edge of the bottom plate 2.2 is octagonal, the inner edge is circular, the annular structure surrounded by the inner web plate 2.3 and the outer web plate 2.3 is slightly smaller than the support ring 2.1, and the support ring 2.1 is directly contacted with a negative ring segment or a shield machine jack.
The support portion specifically includes: a sprag 3 and a support 4. The supporting piece 4 is sleeved on the inclined strut 3; two inclined struts 3 positioned on the same side are fixedly connected through a supporting piece 4.
The inclined strut 3 is fixedly connected to the intersection of the box-shaped beam cross beam 1.2 and the inclined beam 1.3 so as to achieve the best force balance, the inclined strut 3 is a spiral steel round pipe, and the inclined strut 3 is used for sharing the force transmitted by the main body structure.
According to the field construction condition, the number and the size of the inclined struts 3 can be adjusted under the condition that the stress checking calculation is qualified.
The support 4 specifically comprises: a sleeve 4.1, a circular sleeve 4.2, a wing plate 4.3, a supporting upright 4.4 and a stiffening rib 6.
Wing plates 4.3 are arranged on two sides of the sleeve 4.1, the sleeve 4.1 is communicated with the circular sleeve 4.2, stiffening ribs 6 are arranged on two sides of the circular sleeve 4.2, the stiffening ribs 6 are used for increasing the connection strength of the sleeve 4.1 and the circular sleeve 4.2, and the two sleeves 4.1 are fixedly connected through bolts arranged on the wing plates 4.3; the two circular sleeves 4.2 are fixedly connected through a supporting upright rod 4.4, and the supporting upright rod 4.4 penetrates through the circular sleeves 4.2.
After the two sleeves 4.1 are combined, the external part is an octahedral column body, and the internal part is a circular tube.
In order to achieve the best deformation reducing effect, the supporting nodes on the inclined strut 3 are located at the corresponding position or the similar position of the circle center plane of the negative ring pipe sheet, and can be adjusted according to different jack uneven forces which may occur during tunneling.
The length of the supporting upright 4.4 is slightly less than the distance between the circular sleeves 4.2 so as to facilitate construction and installation.
The intersection of the round sleeve 4.2 and the supporting upright 4.4 adopts rust prevention measures for preventing rust and damage.
The angles and dimensions of the supporting uprights 4.4 and the circular sleeves 4.2 can be adjusted on the basis of the site construction situation.
The working principle of the shield starting reaction frame of the embodiment is as follows:
portal frame main part 1 and 2 connection of ring beam form the main part that provides the counter-force, and bracing 3, support piece 4 and 5 combinations of stull form firm triangle-shaped and support, support for the major structure provides, support the deformation that has reduced whole supporting part to the support of key support node through triangle-shaped, support pole setting 4.4 and dispersed bracing 3's atress to let the supporting part structure that warp easily obtain the reinforcement, avoid the deformation of supporting part.
While the present invention has been described in detail with reference to the embodiments, the scope of the present invention should not be limited to the embodiments. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (6)
1. The utility model provides a shield constructs reaction frame that starts which characterized in that: including portal frame main part (1) and circle roof beam (2), circle roof beam (2) with portal frame main part (1) riveting is located portal frame main part (1) all is provided with the supporting part that is used for supporting portal frame main part (1) with both ends of one side, is located a plurality of stull (5) are all installed with top and bottom with portal frame main part (1).
2. The shield originating reaction frame of claim 1, wherein: the portal frame main body (1) comprises a plurality of box-type beam upright columns (1.1), box-type beam cross beams (1.2) and oblique beams (1.3), the box-type beam cross beams (1.2) are fixedly connected through the box-type beam upright columns (1.1), and the box-type beam cross beams (1.2) are welded with the box-type beam upright columns (1.1); the two ends of the oblique beam (1.3) are respectively welded with the box-shaped beam upright column (1.1) and the box-shaped beam cross beam (1.2), and a plurality of stiffening ribs (6) are installed at the bottom of the box-shaped beam cross beam (1.2).
3. The shield-originating reaction frame of claim 2, wherein: the ring beam (2) comprises a support ring (2.1), a bottom plate (2.2) and inner and outer webs (2.3), the inner and outer webs (2.3) are welded with the bottom plate (2.2), and the support ring (2.1) is welded with the inner and outer webs (2.3); the bottom plate (2.2) is riveted with the box beam upright post (1.1) and the box beam cross beam (1.2) respectively.
4. The shield originating reaction frame of claim 3, wherein: the supporting part comprises a plurality of inclined struts (3) and supporting pieces (4), and the supporting pieces (4) are sleeved on the inclined struts (3); the two inclined struts (3) positioned on the same side are fixedly connected through a supporting piece (4).
5. The shield originating reaction frame of claim 4, wherein: the inclined strut (3) is fixedly connected to the intersection of the box-shaped beam cross beam (1.2) and the inclined beam (1.3), and the inclined strut (3) is a spiral steel round pipe.
6. The shield originating reaction frame of claim 5, wherein: the supporting piece (4) comprises a plurality of sleeves (4.1), a circular sleeve (4.2) and a supporting upright rod (4.4), wing plates (4.3) are arranged on two sides of each sleeve (4.1), the sleeves (4.1) are communicated with the circular sleeve (4.2), stiffening ribs (6) used for increasing the connecting strength of the sleeves (4.1) and the circular sleeve (4.2) are arranged on two sides of each circular sleeve (4.2), and the two sleeves (4.1) are fixedly connected through bolts arranged on the wing plates (4.3); the two circular sleeves (4.2) are fixedly connected through the supporting upright rods (4.4), and the supporting upright rods (4.4) penetrate through the circular sleeves (4.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221059154.4U CN217206455U (en) | 2022-05-05 | 2022-05-05 | Shield constructs reaction frame that starts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221059154.4U CN217206455U (en) | 2022-05-05 | 2022-05-05 | Shield constructs reaction frame that starts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217206455U true CN217206455U (en) | 2022-08-16 |
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ID=82778006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221059154.4U Active CN217206455U (en) | 2022-05-05 | 2022-05-05 | Shield constructs reaction frame that starts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217206455U (en) |
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2022
- 2022-05-05 CN CN202221059154.4U patent/CN217206455U/en active Active
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