CN209741907U - Utility tunnel sump pit steel grating mounting structure - Google Patents
Utility tunnel sump pit steel grating mounting structure Download PDFInfo
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- CN209741907U CN209741907U CN201920160418.7U CN201920160418U CN209741907U CN 209741907 U CN209741907 U CN 209741907U CN 201920160418 U CN201920160418 U CN 201920160418U CN 209741907 U CN209741907 U CN 209741907U
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Abstract
The utility model relates to a utility tunnel sump pit steel grating mounting structure, including concrete wall, steel grating and angle steel, the multistage the angle steel is fixed according to a determining deviation in opposite directions a pair of on concrete wall's the inner wall, the plane of angle steel up, the multistage the last plane of angle steel all is in the coplanar, the steel grating tiling is in on the angle steel, use this kind of mounting structure can make on-the-spot construction convenient, construction speed is fast, shortens construction period greatly, and the steel grating roughness of laying is good, overall structure longe-lived, and the fault rate is low, and the later maintenance is simple.
Description
Technical Field
The invention relates to the technical field of municipal engineering comprehensive pipe gallery construction, in particular to a mounting structure for a steel grating of a water collection pit of a comprehensive pipe gallery.
Background
Among the prior art, the installation of utility tunnel sump pit steel grating generally is: pass through the bolt fastening angle steel at the lateral wall top (the hole of sump pit is followed) that constitutes the sump pit, the steel grating is fixed on the angle steel, for example, the sump pit that chinese utility model patent CN207829132U discloses in the specification, escape canal combination formula grid drainage device, use this type of steel grating mounting structure, need follow the L type recess of digging out the ring sump pit in the pit of sump pit, and the degree of depth of L type recess is difficult accurate control, before the installation angle steel, need smear the mortar bed course in L type recess bottom, raise the angle steel elevation to suitable position, fix the angle steel on the mortar bed course again, consequently, the shortcoming of this type of structure is as follows: 1) the thickness of the steel grating is required to be more than or equal to the height of an L cavity in the angle steel, otherwise, the angle steel protrudes out and is higher than the upper plane of the steel grating, so that bumping of passing vehicles is caused or potential safety hazards are caused to pedestrians; 2) after the steel grating is rolled for a long time, the mortar cushion layer can crack or loosen, so that the corners of the steel grating are tilted; 3) the time for excavating the L-shaped groove and plastering a mortar cushion layer is long in field operation and waiting, and the construction period is prolonged.
Disclosure of Invention
The invention aims to solve the technical problem of providing a mounting structure for a steel grating of a water collection pit of a comprehensive pipe gallery, which is convenient to construct on site, the thickness of the steel grating is not limited by the size of angle steel, and the laid steel grating and the pit edge of the water collection pit are on the same plane.
To solve the technical problems, the technical scheme of the invention is as follows:
The utility model provides a utility tunnel sump pit steel grating mounting structure, includes concrete wall, steel grating and angle steel, its characterized in that: the multistage angle steel is fixed according to a determining deviation a pair of in opposite directions on concrete wall's the interior wall, the plane of angle steel is up, the multistage the last plane of angle steel all is in the coplanar, the steel grating tiling is in on the angle steel.
Specifically, the angle steel is fixed on the concrete wall through an expansion bolt.
Specifically, the length of the angle steel is 15cm, and the installation distance is 40 cm.
Specifically, the thickness of the steel grating is 4cm, and the width is 50 cm.
the embedded steel plates comprise steel plates and a plurality of steel bars welded on the steel plates, a plurality of embedded steel plates are embedded in the concrete wall body and correspond to the installation positions of the angle steels, the exposed planes of the steel plates and the inner wall of the concrete wall body are in the same plane, the length of the steel plates is larger than the length of the angle steels, the width of the steel plates is larger than the maximum length dimension of the cross sections of the angle steels, and the angle steels are welded and fixed on the steel plates.
specifically, the steel plates have dimensions of 18cm × 15cm × 0.7 cm.
Specifically, the number of the reinforcing bars is 6.
Due to the adoption of the technical scheme, the beneficial effects that:
1) The site operation is convenient, the construction speed is high, and the construction period is greatly shortened;
2) the thickness of the steel grating is not limited by the size of the angle steel, so that the well laid steel grating and the pit edge of the water collecting pit are better ensured to be on the same plane;
3) the whole structure has long service life, low failure rate and simple later maintenance.
Drawings
FIG. 1 is a front sectional view of embodiment 1;
FIG. 2 is a side sectional view A-A of FIG. 1;
FIG. 3 is a front sectional view of embodiment 2;
FIG. 4 is a side sectional view B-B of FIG. 3;
FIG. 5 is a pre-buried steel plate;
In the figure: 1 concrete wall, 2 steel grids, 3 angle steels, 4 expansion bolts, 5 embedded steel plates, 51 steel plates and 52 steel bars.
Detailed Description
the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1
as shown in fig. 1 and 2, the utility tunnel water collecting pit steel grating mounting structure comprises a concrete wall body 1, a steel grating 2 and angle steel 3; the thickness of the steel grating 2 is 4cm, the width is 50cm, and the length of the angle steel 3 is 15 cm; multistage angle steel 3 passes through expansion screw 4 to be fixed on the interior wall of a pair of concrete wall 1 in opposite directions according to interval 40cm, and angle steel 3's plane is up, and multistage angle steel 3's last plane all is in the coplanar, and steel grating 2 tiling is in on the angle steel 3.
The construction sequence of this example is as follows:
1) Building brick moulds at the side wall part of the sump: according to the requirements of a structural drawing of the sump pit, brick molds are built at the side wall parts of the sump pit, when the brick molds are built, the brick bodies are ensured to be horizontal and vertical, the mortar is full, the upper and lower staggered joint lap joints are not less than 1/4, and meanwhile, the building height of each day is not more than 1.2 m.
2) Binding a steel bar framework at the side wall part: after the brick mold is built, a reinforcement cage is bound at the side wall part according to the design requirements of drawings, the specification and the shape of the reinforcement processing must meet the design requirements of the drawings, the aged rusted reinforcement is forbidden to be used, and the surface of the reinforcement is ensured to be clean and traceless.
3) installing and fixing a template: the template is installed according to the drawing requirements of the sump pit structure, the seam of the template is compact and flat, the phenomena of slurry leakage and local mold expansion at the abutted seam part are avoided, the verticality of the template is checked, and the template is fixed.
4) Acceptance of concealed works and concrete pouring: before the die assembly, informing a supervision and construction unit of relevant personnel to check the field construction quality and completing the inspection and acceptance of hidden projects; and after the concrete is qualified, pouring concrete in a cavity formed by the brick mould, the steel reinforcement framework and the template, and removing the mould after the concrete is hardened to form the concrete wall body 1 of the water collecting pit.
5) Fixing the angle steel 3: popping the line of the center of the hole corresponding to the expansion screw 4 by using an ink line on the inner wall of the concrete wall 1, drilling the mounting hole of the expansion screw 4 by using an electric drill according to the design requirements of a drawing, and fixing the expansion screw 4 on the concrete wall 1.
6) Laying a steel grating 2: and flatly paving the steel grating 2 on the angle steel 3.
Example 2
As shown in fig. 3 to 5, the utility tunnel water collection pit steel grating mounting structure comprises a concrete wall 1, a steel grating 2 and angle steel 3, wherein a plurality of embedded steel plates 5 are embedded in the concrete wall 1; the embedded steel plate 5 comprises a steel plate 51 and a plurality of steel bars 52 welded on the steel plate 51, the size of the steel plate 51 is 18cm multiplied by 15cm multiplied by 0.7cm, the thickness of the steel grating 2 is 4cm, the width of the steel grating is 50cm, and the length of the angle steel 3 is 15 cm; the multi-section angle steel 3 is welded and fixed on the corresponding steel plates 51 on the inner wall walls of the pair of opposite concrete walls 1 at intervals of 40cm, the plane of the angle steel 3 faces upwards, the upper planes of the multi-section angle steel 3 are in the same plane, and the steel grating 2 is tiled on the angle steel 3.
The construction sequence of this example is as follows:
1) Building brick moulds at the side wall part of the sump: according to the requirements of a structural drawing of the sump pit, brick molds are built at the side wall parts of the sump pit, when the brick molds are built, the brick bodies are ensured to be horizontal and vertical, the mortar is full, the upper and lower staggered joint lap joints are not less than 1/4, and meanwhile, the building height of each day is not more than 1.2 m.
2) Binding a steel bar framework at the side wall part: after the brick mold is built, a reinforcement cage is bound at the side wall part according to the design requirements of drawings, the specification and the shape of the reinforcement processing must meet the design requirements of the drawings, the aged rusted reinforcement is forbidden to be used, and the surface of the reinforcement is ensured to be clean and traceless.
3) Binding and fixing the embedded steel plates: calibrating the pre-buried position of the pre-buried steel plate 5 on the steel reinforcement framework, binding the steel bars 52 on the pre-buried steel plate 5 on the steel reinforcement framework, checking the verticality and elevation of the pre-buried steel plate 5, welding and fixing the steel bars 52 and the steel reinforcement framework, and removing welding slag.
4) Installing and fixing a template: installing the template according to the drawing requirements of a sump structure, wherein the seam of the template is compact and flat, so that the phenomena of slurry leakage and local mold expansion at the abutted seam part are avoided, the verticality of the template is checked, and the template is fixed; and a double-sided adhesive tape is adhered to the surface of the embedded steel plate 5, which is the template, so that concrete leakage is prevented.
5) Acceptance of concealed works and concrete pouring: before the die assembly, informing a supervision and construction unit of relevant personnel to check the field construction quality and completing the inspection and acceptance of hidden projects; after the concrete is qualified, concrete is poured in a cavity formed by the brick mold, the steel reinforcement framework and the template, the mounting position of the embedded steel plate 5 is required to be prevented from being directly contacted with the vibrating rod, the embedded steel plate 5 is prevented from loosening and shifting, and the concrete wall 1 of the water collecting pit is formed by removing the mold after the concrete is hardened.
6) and (3) welding angle steel: reserving the wall thickness height of a 4cm steel grating as a welding height, popping up a welding line by using an ink line, welding the angle steel 3 on the steel plate 51 of the pre-embedded steel plate 5, ensuring the requirement of the height of a welding seam, removing welding slag, and performing anticorrosive and antirust treatment on the welding part.
7) Laying a steel grating 2: and flatly paving the steel grating 2 on the angle steel 3.
the above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the idea of the present invention.
Claims (7)
1. The utility model provides a utility tunnel sump pit steel grating mounting structure, includes concrete wall, steel grating and angle steel, its characterized in that: the multistage angle steel is fixed according to a determining deviation a pair of in opposite directions on concrete wall's the interior wall, the plane of angle steel is up, the multistage the last plane of angle steel all is in the coplanar, the steel grating tiling is in on the angle steel.
2. The utility tunnel sump steel grid mounting structure of claim 1, characterized by: the angle steel is fixed on the concrete wall through expansion bolts.
3. The utility tunnel sump steel grid mounting structure of claim 1, characterized by: the length of the angle steel is 15cm, and the installation distance is 40 cm.
4. The utility tunnel sump steel grid mounting structure of claim 1, characterized by: the thickness of the steel grating is 4cm, and the width is 50 cm.
5. The utility tunnel sump steel grid mounting structure of claim 1, characterized by: the embedded steel plate comprises steel plates and a plurality of steel bars welded on the steel plates, a plurality of embedded steel plates are embedded in the concrete wall body and correspond to the installation positions of the angle steel, the exposed plane of each steel plate and the inner wall of the concrete wall body are in the same plane, the length of each steel plate is larger than the length of each angle steel, the width of each steel plate is larger than the maximum length dimension of the cross section of each angle steel, and the angle steel is welded and fixed on the steel plates.
6. the utility tunnel sump steel grid mounting structure of claim 5, characterized by: the steel plates have dimensions of 18cm by 15cm by 0.7 cm.
7. The utility tunnel sump steel grid mounting structure of claim 5, characterized by: the number of the reinforcing steel bars is 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920160418.7U CN209741907U (en) | 2019-01-30 | 2019-01-30 | Utility tunnel sump pit steel grating mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920160418.7U CN209741907U (en) | 2019-01-30 | 2019-01-30 | Utility tunnel sump pit steel grating mounting structure |
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| Publication Number | Publication Date |
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| CN209741907U true CN209741907U (en) | 2019-12-06 |
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| CN201920160418.7U Active CN209741907U (en) | 2019-01-30 | 2019-01-30 | Utility tunnel sump pit steel grating mounting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112376679A (en) * | 2020-11-02 | 2021-02-19 | 通号建设集团第一工程有限公司 | Water collecting well cover plate and construction method thereof |
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2019
- 2019-01-30 CN CN201920160418.7U patent/CN209741907U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112376679A (en) * | 2020-11-02 | 2021-02-19 | 通号建设集团第一工程有限公司 | Water collecting well cover plate and construction method thereof |
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