CN214328541U - Stride way door opening steel grit case device with adjustable convenient to disassemble - Google Patents
Stride way door opening steel grit case device with adjustable convenient to disassemble Download PDFInfo
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- CN214328541U CN214328541U CN202022821863.9U CN202022821863U CN214328541U CN 214328541 U CN214328541 U CN 214328541U CN 202022821863 U CN202022821863 U CN 202022821863U CN 214328541 U CN214328541 U CN 214328541U
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Abstract
The utility model discloses an adjustable stride way door opening steel sand box device convenient to disassemble, which comprises an upper steel bearing plate, an upper steel sleeve, a concrete filled in the upper steel sleeve, a lower steel sleeve, a medium coarse sand filled in the lower steel sleeve, a lower steel bearing plate, a concrete filled in the upper steel sleeve and arranged in the upper steel sleeve; the upper steel sleeve and the upper bearing steel plate form a cope flask device; the lower steel sleeve and the lower bearing steel plate form a lower sand box device; filling medium coarse sand in the lower steel sleeve; the upper steel sleeve is inserted into the lower steel sleeve; and a plugging bolt is arranged at the bottom of the lower steel sleeve. By adopting the technical scheme, the height adjustment can be realized by adjusting the filling amount of the medium coarse sand, and the function of dismounting the supporting structures such as the door opening and the like can be realized by dismounting the plugging bolt and taking out the medium coarse sand filled in the lower steel sleeve; after the plugging bolt is removed, the height can be reduced through the simple operation of manually drawing out coarse sand in the filling of the lower steel sleeve, the upper bearing steel plate and the upper structure of the loaded door opening can be smoothly peeled off, and the aim of smoothly removing the component is fulfilled.
Description
Technical Field
The utility model belongs to the technical field of bridge engineering auxiliary design, especially, relate to a stride way door opening steel sand case device with adjustable be convenient for disassemble.
Background
In bridge engineering or other structure newly-built projects, in order to meet the requirements of normal traffic of cross roads and ensure safety, the mature technology of erecting I-shaped steel door openings on the tops of steel pipe columns is often used, and detachable scaffolds can be arranged on the steel pipe columns to facilitate the removal of templates and door openings after components such as upper beam bodies and the like are completed. The steel pipe column and I-steel cross-road door opening is widely applied and mature in technology. For example, the Taiyuan iron construction company of six departments of middle-iron and China-iron, Du Yongqing, the construction technology of the cast-in-situ continuous box girder door opening bracket of the existing highway strides.
The steel grit box technology is mature and widely applied to the installation of the prefabricated small box girder or the steel box girder, and the diameter of the common section is 150 mm. For example, design and construction of first simply supported and then continuous small box girder bridge, Zhuyuhua, Tianjin university, 2008, Master
In the road-crossing construction, the clearance of the crossed road is required to meet the traffic requirement, the building height designed by the member is not high enough, the design is not economical, and the construction difficulty is increased, so that the member support system at the door opening cannot be arranged conventionally, and the door opening and the support system on the door opening are difficult to dismantle.
The technology of 'I-shaped steel erected on the top of a steel pipe column' adopted by the cross-road door opening meets the requirement of cross road, and also solves the bearing requirement of the installed or cast-in-place member, but if the I-shaped steel top of the door opening is the member, no space is provided for arranging detachable components such as a scaffold, and the like, so that the door opening and the upper supporting system cannot be detached.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model provides a solve the road door opening of striding and on it the support system demolish difficult problem the adjustable road door opening steel sand case device of disassembling of being convenient for.
The utility model discloses a realize like this, a convenient to disassemble adjustable stride way door opening steel sand case device, its characterized in that, including the upper steel plate that holds, the upper steel sleeve fills the concrete, the lower steel sleeve fills the medium grit, the lower steel plate that holds, wherein the upper steel sleeve fills the concrete and arranges in the upper steel sleeve; the upper steel sleeve and the upper bearing steel plate are fixedly connected into a whole to form a cope flask device; the lower steel sleeve and the lower steel bearing plate are fixedly connected into a whole to form a lower sand box device; densely filling coarse sand filled in the lower steel sleeve; an upper steel sleeve of the cope flask device is inserted into the lower steel sleeve; and installing a plugging bolt in a bolt hole at the bottom of the lower steel sleeve along the radial direction.
According to the technical scheme, the upper steel bearing plate and the lower steel bearing plate are of square structures, and the upper steel sleeve and the lower steel sleeve are of circular structures.
Above-mentioned technical scheme is preferred, goes up steel sleeve and last steel bearing plate, and lower steel sleeve links as an organic whole through the welding with steel bearing plate down.
The utility model has the advantages and technological effect:
with existing sand box and door opening technical contrast, the utility model discloses the sharp design has following advantage and beneficial effect:
(1) the device mainly comprises Q235 steel plates, C30 concrete, medium and coarse sand and M20 bolts which are common materials for construction engineering; the manufacturing is welding, the manufacturing process is simple, the field processing is convenient, and the finished product, modularization and factory prefabrication can be realized.
(2) The device is divided into an upper part and a lower part, is convenient to carry or hoist in actual use, is convenient to operate by workers, and can realize large-scale and integrated installation and removal; can realize recycling.
(3) The device inherits the excellent compression resistance of the steel grit box, and the axial compression resistance is up to more than 60MPa without damage through destructive test detection; the lateral stability is also good and there is no lateral imbalance due to compression. The requirements of upper bearing and middle load transmission downward are met.
(4) The device has the advantages of low single-piece cost, simple manufacture, low material use and loss cost, little influence on project cost and obvious value-added and value-preserved benefits.
(5) The device can reduce the contribution degree to environmental pollution, and has high environmental friendliness.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of the structure of the utility model in use;
fig. 4 is a sectional view B-B of fig. 3.
In the figure: 1. an upper bearing steel plate; 2. the upper steel sleeve 3 is filled with concrete, the lower steel sleeve 4 is filled with medium coarse sand, the lower steel sleeve 5 is filled with medium coarse sand, and the lower steel bearing plate 6 is filled with medium coarse sand, and the upper steel sleeve 7 is filled with a plugging bolt; 8. the structure comprises an upper component, 9, a template system, 10, transverse I-shaped steel, 11, longitudinal I-shaped steel, 12, a steel pipe column, 13, a concrete strip foundation, 14, a roadway, 15 and passing vehicles.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 2, an adjustable steel sand box device for a cross-road door opening convenient to disassemble is characterized by comprising an upper steel bearing plate 1, an upper steel sleeve 2, an upper steel sleeve filled with concrete 3, a lower steel sleeve 4, a lower steel sleeve filled with medium coarse sand 5 and a lower steel bearing plate 6, wherein the upper steel sleeve filled with concrete 3 is arranged in the upper steel sleeve 2; the upper steel sleeve 2 and the upper steel bearing plate 1 are fixedly connected into a whole to form a cope flask device; the lower steel sleeve 4 and the lower steel bearing plate 6 are fixedly connected into a whole to form a lower sand box device; densely filling the lower steel sleeve with medium coarse sand 5 in the lower steel sleeve 4; an upper steel sleeve 2 of the cope flask device is inserted into a lower steel sleeve 4; and a plugging bolt is arranged in a bolt hole at the bottom of the lower steel sleeve 4 along the radial direction, so that the pressure bearing effect is realized. The upper steel support plate 1 and the lower steel support plate 6 maintain the levelness and the pressed cross section of the support surface.
Preferably, in the scheme, the upper steel bearing plate 1 and the lower steel bearing plate 6 are of square structures, and the upper steel sleeve and the lower steel sleeve 4 are of circular structures.
Preferably, in the scheme, the upper steel sleeve 2 and the upper steel bearing plate 1, and the lower steel sleeve 4 and the lower steel bearing plate 6 are connected into a whole through welding.
The device consists of two parts, wherein one part is a sand feeding box device; the other part is a sand box device, and the two parts are integrated and combined to form a cross-road gate opening sand box device; the height adjustment can be realized by adjusting the filling amount of the coarse sand 5 in the lower steel sleeve filling, and the function of dismantling the supporting structures such as door openings and the like can be realized by dismantling the plugging bolt 7 and taking out the coarse sand 5 in the lower steel sleeve filling; after the plugging bolt 7 is removed, the height reduction can be realized through the simple operation of manually drawing out the coarse sand 5 in the lower steel sleeve filling process, the upper bearing steel plate 1 and the borne door opening upper structure can be smoothly peeled off, and the aim of smoothly removing the component is fulfilled.
The utility model discloses application embodiment, in order to agree with phi 609 steel-pipe column system better, this adjustable stride way door opening steel grit case device design size of being convenient for disassemble does: the length is 700mm, the width is 700mm, the height is 200mm, the diameter of the middle section cylinder is 600mm, and the thicknesses of the steel plate and the steel sleeve are 10 mm. Referring to fig. 3 to 4 of the drawings,
1.1 door opening design
The door opening support is made of steel pipe columns 12 phi 600, the wall thickness is 16mm, flange plates are arranged at the upper part and the lower part, flanges at the lower parts of the steel pipe columns are connected with foundation embedded bolts, and flanges at the upper parts of the steel pipe columns are welded with the steel sand box device.
The lower part of the steel pipe column is provided with a C30 concrete strip foundation, the width of the C30 concrete strip foundation is 1000mm, the height of the C30 concrete strip foundation is 800mm, the top of the strip foundation is embedded with a bolt rod, the bolt adopts a phi 25 steel bar, the embedded depth is 350mm, and the bolt rod is exposed by 200 mm.
The steel pipe columns are arranged along the road direction, and the center distance is 1.5 m. The top distribution beam of the steel pipe column is formed by welding double I-shaped steel I70#, namely transverse I-shaped steel 10 and longitudinal I-shaped steel 11.
Double I70# I-shaped steel serving as a longitudinal beam is laid on the cross beam along the bridge direction, and the distance between the longitudinal beam and the double I-shaped steel is 1000 mm.
And (3) fully paving 10 multiplied by 10cm square timbers on the I-shaped steel and supporting the bottom die of the box girder.
1.2 door opening erection
The door opening is erected and comprises a concrete pouring strip foundation, an installation steel pipe column, I-shaped steel, a bowl buckle support and the like. Before the concrete strip foundation is poured, the measurement and the paying-off are carried out, the formwork is erected, the concrete strip foundation is vibrated fully during pouring, and the water is sprayed for maintenance after pouring, so that the strength of the concrete strip foundation 13 is ensured. And each concrete strip foundation is provided with a 60cm steel pipe column. Two I-shaped steel of the I70 distribution beam are arranged on the steel pipe column, and each I-shaped steel is 12m long. The beam is I70I-shaped steel, and the distance is 60 cm. Through calculation, single steel-pipe column, I-steel are all lighter, consequently, adopt 50t crane direct hoisting, and the crane is sat the position and is located the innermost side or the outside of road. The mounting sequence is that the inner side of the road is firstly arranged in the half width, and the outer side of the road is arranged later.
Firstly, after a flange plate at the lower part of the steel pipe column is firmly connected with the bar foundation, the adjacent steel pipe columns are connected in a scissor shape by using two channel steels so as to improve the overall stability of the steel pipe column.
Secondly, after the I-shaped steel of the double-spliced distribution beam is installed and positioned, 1 reinforcing steel bar with the length of 20cm phi 32 is welded every 2m to transversely connect two I-shaped steels, and triangular steel baffles are welded on the two sides of the I-shaped steel and the top of the steel pipe column to limit the transverse movement of the I-shaped steel.
Thirdly, before square wood is laid on the I-shaped steel beam, a layer of bamboo plywood is laid firstly, then a layer of color strip cloth is laid, and finally the square wood is laid densely, so that the purpose of preventing the passing vehicles and pedestrians from being injured by falling objects during construction is achieved.
Fourthly, the width of the built door opening exceeds the width of the bridge by 2m, the exceeding part serves as an anti-falling platform at the entrance and exit, a guard rail is arranged on the outer side of the platform, the height of each rail is 2.2m, vertical rods are arranged at intervals of 2m, 1 layer of bamboo rubber plate is arranged on the inner side close to the rails and connected with the rails through iron wires, and the anti-falling device is mainly used for falling objects falling from the high altitude into a traffic lane 14 below the door opening in a splashing and rebounding mode to injure and pass vehicles 15 and pedestrians.
1.3 Sand box mounting
And a 50t crane is adopted for hoisting, and manual installation and stable position are assisted. Ensuring that the center line of the sand box is superposed with the center line of the steel pipe column during installation; meanwhile, the upper bearing plate is ensured to be horizontal during installation, and a level ruler is adopted for detection; and ensuring the integral elevation, and detecting the elevation by adopting a level gauge.
1.4 Sand box demolition and reclamation
A50 t crane basket is adopted or a temporary support is erected, and manual dismantling is assisted. During dismantling, the plugging bolt is manually opened, the medium-coarse sand is drawn out by using slender objects such as a screwdriver and the like, a steel sleeve on the steel grit box descends by 2-4 cm, and the support and template system 9 on the steel sleeve is effectively stripped from the upper structural body 8, so that the aim of dismantling is fulfilled. After the door opening is dismantled, the steel sleeve is recycled; when the medium coarse sand is drawn out, a small container can be adopted for collection, and recycling is realized.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. An adjustable cross-road door opening steel sand box device convenient to disassemble is characterized by comprising an upper bearing steel plate (1), an upper steel sleeve (2), an upper steel sleeve filled with concrete (3), a lower steel sleeve (4), a lower steel sleeve filled with medium coarse sand (5) and a lower bearing steel plate (6); wherein the upper steel sleeve filled concrete (3) is arranged in the upper steel sleeve (2); the upper steel sleeve (2) and the upper bearing steel plate (1) are fixedly connected into a whole to form a cope flask device; the lower steel sleeve (4) and the lower steel bearing plate (6) are fixedly connected into a whole to form a lower sand box device; densely filling the lower steel sleeve with medium coarse sand (5) in the lower steel sleeve (4); an upper steel sleeve (2) of the cope flask device is inserted into the lower steel sleeve (4); and a plugging bolt is arranged in a bolt hole at the bottom of the lower steel sleeve (4) along the radial direction.
2. The adjustable stride way door opening steel grit chamber device convenient to disassemble of claim 1, wherein: the upper bearing steel plate (1) and the lower bearing steel plate (6) are of square structures, and the upper steel sleeve and the lower steel sleeve (4) are of circular structures.
3. The adjustable stride way door opening steel grit chamber device convenient to disassemble of claim 1, wherein: the upper steel sleeve (2) is connected with the upper steel bearing plate (1), and the lower steel sleeve (4) is connected with the lower steel bearing plate (6) into a whole through welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022821863.9U CN214328541U (en) | 2020-11-30 | 2020-11-30 | Stride way door opening steel grit case device with adjustable convenient to disassemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022821863.9U CN214328541U (en) | 2020-11-30 | 2020-11-30 | Stride way door opening steel grit case device with adjustable convenient to disassemble |
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| Publication Number | Publication Date |
|---|---|
| CN214328541U true CN214328541U (en) | 2021-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022821863.9U Active CN214328541U (en) | 2020-11-30 | 2020-11-30 | Stride way door opening steel grit case device with adjustable convenient to disassemble |
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| Country | Link |
|---|---|
| CN (1) | CN214328541U (en) |
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- 2020-11-30 CN CN202022821863.9U patent/CN214328541U/en active Active
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