CN115679969A - Cover plate pouring method based on erection of portal frame body - Google Patents
Cover plate pouring method based on erection of portal frame body Download PDFInfo
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- CN115679969A CN115679969A CN202211430467.0A CN202211430467A CN115679969A CN 115679969 A CN115679969 A CN 115679969A CN 202211430467 A CN202211430467 A CN 202211430467A CN 115679969 A CN115679969 A CN 115679969A
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Abstract
A cover plate pouring method based on erection of a portal frame body relates to the technical field of culvert construction. The culvert cover plate pouring method aims to solve the problem that when an existing culvert cover plate is poured, due to the fact that the field is limited and pedestrians and vehicles need to keep passing normally in an existing culvert, pouring of the cover plate is difficult to achieve through conventional means. The method comprises the following steps: determining the area: leveling and hardening the field; erecting a door type frame body; and (7) pouring a cover plate. The method is used for pouring the improved culvert cover plate.
Description
Technical Field
The invention relates to the technical field of culvert construction, in particular to a cover plate pouring method based on erection of a portal frame body.
Background
In recent years, with the development of society, communication from place to place is more and more frequent, railway industry and highway industry are developed vigorously, railways are used as important transportation tools for people to go out, and when new lines are laid, the existing lines are urgently needed to be optimized and improved in an energy expansion mode. The condition of reconstructing and connecting the existing culvert is often met during reconstructing the existing railway path, and the condition of removing the original culvert and creating a new culvert can be met during reconstructing the existing culvert, so that the condition of optimizing the operation of the railway line is achieved. In the cast-in-place apron support body of building apron culvert is established in line transformation in the railway station yard, because the factor influence that the jacking in-process relates to existing railway line operation, because the construction hoist and mount that build the apron culvert in the station yard does not have the operation face, can't realize hoist and mount operation, there is the contact net in the top simultaneously, and the existing culvert pedestrian vehicle of lower cross railway normally passes, can't set up full red support, therefore conventional means is difficult to realize pouring of apron.
Disclosure of Invention
The invention provides a cover plate pouring method based on a portal frame body, aiming at solving the problem that when the existing culvert cover plate is poured, the pouring of the cover plate is difficult to realize by conventional means due to the fact that the site is limited and pedestrians and vehicles need to normally pass in the existing culvert.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a cover plate pouring method based on the erection of a portal frame body comprises the following steps:
the method comprises the following steps: determining a region: determining the area range of a frame body to be built according to the position of a cover plate culvert area to be poured;
step two: leveling and hardening the field: carrying out leveling hardening on the two side fields within the range of the region where the frame body needs to be built, and building the reference bases to keep the upper end surfaces of the reference bases of the two side fields on the same horizontal plane;
step three: erecting a door type frame body: erecting scaffolds on the reference bases on the two sides respectively, laying an I-steel layer on the top of the scaffold, then laying a square timber layer above the I-steel layer, and finally laying a plywood layer above the square timber layer;
step four: pouring a cover plate: after the frame body is erected, the frame body is readjusted and erected after the strength is checked and unqualified until the strength is checked to be qualified, binding steel bars are uniformly distributed on the top of the frame body after the strength is checked to be qualified, a cover plate section die is assembled, and concrete is poured.
Furthermore, when the reference base is built in the second step, the reference base is built in a way of pouring C20 concrete.
Further, the scaffold erected in the third step is a coil buckle type scaffold.
Further, scaffold frame in step three includes support body base, multiunit top support and multilayer support body, and the support body base sets up in the upper end of benchmark base, and the multilayer support body is followed the direction of height rigid coupling on the support body base, and the multiunit top is held in the palm along length direction rigid coupling on the top of multilayer support body.
Further, I-steel layer includes many I-steel in the third step, and many I-steel set up along length direction equipartition, and every I-steel sets up along the width direction of culvert respectively.
Furthermore, each I-steel is fixedly connected to the upper end of one group of top supports respectively.
Further, the I-steel is H180I-steel.
Furtherly, step three middle square timber layer includes many square timbers, and many square timbers set up along the width direction equipartition of culvert, and every square timbers sets up along length direction respectively.
Further, the thickness of the square timber is 10cm, and the width of the square timber is 10cm.
Further, the plywood in the third step is a bamboo plywood with the thickness of 1 cm.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a cover plate pouring method based on the erection of a portal frame body, which is characterized in that the construction and hoisting of a built cover plate culvert in a station yard has no working surface, overhead contact network equipment is arranged, and pedestrians and vehicles pass normally when passing through the existing culvert of a railway, so that the cast-in-place construction of the cover plate is carried out by adopting the form of erecting the portal frame in the old existing culvert. Therefore, the construction period can be shortened, normal passing of pedestrians and vehicles can be guaranteed, potential safety hazards caused by hoisting operation can be eliminated, and the condition that no working face exists in the hoisting operation can be eliminated. The portal frame body is set up simple structure, and easily operation, it adopts the dish to detain formula scaffold frame and sets up, and structure operation is simple, stable in structure, and 180I-steel rigidity satisfy the construction requirement, and can enough satisfy the structural requirement after the support body is set up and is accomplished, can satisfy the traffic demand again.
Drawings
FIG. 1 is a front view of a portal frame body of the present invention;
fig. 2 is a left side view of fig. 1.
Detailed Description
The first embodiment is as follows: the present embodiment is described with reference to fig. 1 to fig. 2, and a method for pouring a cover plate based on erection of a portal frame body according to the present embodiment includes the following steps:
the method comprises the following steps: determining the area: determining the area range of a frame body to be built according to the position of a cover plate culvert area to be poured;
step two: leveling and hardening the field: carrying out leveling hardening on the two side fields within the area range of the frame body to be built, and building the reference bases 1 to keep the upper end surfaces of the two side field reference bases 1 on the same horizontal plane;
step three: erecting a door type frame body: erecting scaffolds 2 on the reference bases 1 on two sides respectively, laying an I-shaped steel layer on the top of the scaffold 2, then laying a square timber layer above the I-shaped steel layer, and finally laying a plywood 5 above the square timber layer;
step four: pouring a cover plate: after the frame body is erected, the frame body is readjusted and erected after the strength is checked and unqualified until the strength is checked to be qualified, binding steel bars are uniformly distributed on the top of the frame body after the strength is checked to be qualified, a cover plate section die is assembled, and concrete is poured.
When the existing culvert is transformed, after the retaining walls on the two sides of the existing culvert are chiseled off, the side walls on the two sides of the cover plate culvert are poured again, after the side walls are poured, the boundary of the portal frame body and the traffic required clearance are determined, so that no conflict is ensured, the base is hardened after the measurement and the setting-off, and the frame body is further installed.
The second embodiment is as follows: the present embodiment will be described with reference to fig. 1 to 2, and when the reference foundation 1 is built in the second step of the present embodiment, the reference foundation 1 is built by placing C20 concrete. The technical features not disclosed in the present embodiment are the same as those of the first embodiment.
Because the road surface in the culvert has a slope, the field hardened surface is ensured to be on the same horizontal plane. Therefore, the C20 concrete is adopted for field hardening and leveling.
The third concrete implementation mode: the present embodiment is described with reference to fig. 1 to 2, and the scaffold 2 erected in the third step of the present embodiment is a disk-buckle scaffold. The technical features not disclosed in the present embodiment are the same as those of the first embodiment.
Because existing line construction, the place is restricted in the railway station, so can't lap the hoisting of cover plate culvert, so the apron adopts cast-in-place construction, because of the traffic needs again, the red support in full hall can't be set up in the cast-in-place construction of cover plate culvert, adopts apron culvert both sides to set up scaffold frame upper portion processing word steel and supports, and the driving space is left at the middle part, adopts the gate-type support body as setting up the support body. When the frame body is erected, the interval with rare smoke is selected to be carried out, and personal injury caused during hoisting operation is avoided.
The fourth concrete implementation mode is as follows: the embodiment is described with reference to fig. 1 to 2, and the scaffold 2 in step three of the embodiment includes a scaffold base, a plurality of sets of top supports and a multi-layer scaffold, wherein the scaffold base is disposed at the upper end of the reference base 1, the multi-layer scaffold is fixedly connected to the scaffold base along the height direction, and the plurality of sets of top supports are fixedly connected to the top end of the multi-layer scaffold along the length direction. The technical features not disclosed in the present embodiment are the same as those of the third embodiment.
Each layer of frame body comprises a vertical rod, a cross rod and an inclined pull rod. The connecting node part is fixedly connected by adopting a disk buckle type.
The fifth concrete implementation mode is as follows: the embodiment is described with reference to fig. 1 to 2, in the third step of the embodiment, the i-steel layer includes a plurality of i-steels 3, the plurality of i-steels 3 are uniformly distributed along the length direction, and each i-steel 3 is respectively arranged along the width direction of the culvert. The features not disclosed in the present embodiment are the same as those of the fourth embodiment.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 1 to fig. 2, in which each i-steel 3 is fixedly connected to an upper end of a set of top brackets. The technical features not disclosed in this embodiment are the same as those in the fifth embodiment.
And after the jacking is installed, the I-steel is hoisted and welded at night with less pedestrian flow and less traffic flow, and night illumination is ensured during installation.
The seventh concrete implementation mode: the present embodiment is described with reference to fig. 1 to 2, and the H-beam 3 according to the present embodiment is an H180H-beam. The technical features not disclosed in the present embodiment are the same as those of the sixth embodiment.
The specific implementation mode is eight: the embodiment is described with reference to fig. 1 to 2, the square timber layer in the third step of the embodiment includes a plurality of square timbers 4, the plurality of square timbers 4 are uniformly distributed along the width direction of the culvert, and each square timbers 4 is respectively arranged along the length direction. The technical features not disclosed in the present embodiment are the same as those of the first embodiment.
The specific implementation method nine: the present embodiment is described with reference to fig. 1 to 2, and the thickness of the square lumber 4 of the present embodiment is 10cm, and the width of the square lumber 4 is 10cm. The technical features not disclosed in this embodiment are the same as those in the eighth embodiment.
The detailed implementation mode is ten: the present embodiment is described with reference to fig. 1 to 2, and the plywood 5 in the third step of the present embodiment is a bamboo plywood with a thickness of 1 cm. The technical features not disclosed in the present embodiment are the same as those of the first embodiment.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that various dependent claims and the features described herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (10)
1. The utility model provides a apron pouring method based on portal frame body sets up which characterized in that: the method comprises the following steps:
the method comprises the following steps: determining the area: determining the area range of a frame body to be built according to the position of a cover plate culvert area to be poured;
step two: leveling and hardening the field: carrying out leveling hardening on the two side fields within the range of the region where the frame body needs to be built, and building the reference bases (1) to keep the upper end surfaces of the two side field reference bases (1) on the same horizontal plane;
step three: erecting a door type frame body: erecting scaffolds (2) on the reference bases (1) on two sides respectively, laying an I-shaped steel layer on the top of the scaffold (2), then laying a square timber layer above the I-shaped steel layer, and finally laying a plywood (5) above the square timber layer;
step four: pouring a cover plate: after the frame body is erected, the frame body is readjusted and erected after the strength is checked and unqualified until the strength is checked to be qualified, binding steel bars are uniformly distributed on the top of the frame body after the strength is checked to be qualified, a cover plate section die is assembled, and concrete is poured.
2. The cover plate pouring method based on the erection of the portal frame body according to claim 1, which is characterized in that: and in the second step, when the reference base (1) is built, the reference base (1) is built in a C20 concrete pouring mode.
3. The cover plate pouring method based on the erection of the portal frame body according to claim 1, which is characterized in that: and the scaffold (2) erected in the third step is a disk buckle type scaffold.
4. The cover plate pouring method based on the erection of the portal frame body according to claim 3, which is characterized in that: scaffold frame (2) in step three include support body base, multiunit top support and multilayer support body, and the support body base sets up in the upper end of benchmark base (1), and the multilayer support body is along direction of height rigid coupling on the support body base, and multiunit top support is along the top of length direction rigid coupling at the multilayer support body.
5. The cover plate pouring method based on the erection of the portal frame body according to claim 4, wherein the method comprises the following steps: the I-steel layer in the third step comprises a plurality of I-steels (3), the I-steels (3) are uniformly distributed along the length direction, and each I-steel (3) is arranged along the width direction of the culvert respectively.
6. The cover plate pouring method based on the erection of the portal frame body according to claim 5, which is characterized in that: each I-shaped steel (3) is fixedly connected to the upper end of one group of top supports respectively.
7. The cover plate pouring method based on the erection of the portal frame body according to claim 6, which is characterized in that: the H-shaped steel (3) is H180H-shaped steel.
8. The cover plate pouring method based on the erection of the portal frame body according to claim 1, characterized in that: the third step is middle and square timber layer includes many square timbers (4), and many square timbers (4) set up along the width direction equipartition of culvert, and every square timbers (4) set up along length direction respectively.
9. The cover plate pouring method based on the erection of the portal frame body according to claim 8, which is characterized in that: the thickness of the square timber (4) is 10cm, and the width of the square timber (4) is 10cm.
10. The cover plate pouring method based on the erection of the portal frame body according to claim 1, which is characterized in that: the plywood (5) in the third step is a bamboo plywood with the thickness of 1 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211430467.0A CN115679969A (en) | 2022-11-15 | 2022-11-15 | Cover plate pouring method based on erection of portal frame body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211430467.0A CN115679969A (en) | 2022-11-15 | 2022-11-15 | Cover plate pouring method based on erection of portal frame body |
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| Publication Number | Publication Date |
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| CN115679969A true CN115679969A (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211430467.0A Pending CN115679969A (en) | 2022-11-15 | 2022-11-15 | Cover plate pouring method based on erection of portal frame body |
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| CN (1) | CN115679969A (en) |
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- 2022-11-15 CN CN202211430467.0A patent/CN115679969A/en active Pending
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