CN204238121U - Wavelike steel webplate flush type opening dumbbell connecting key - Google Patents
Wavelike steel webplate flush type opening dumbbell connecting key Download PDFInfo
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- CN204238121U CN204238121U CN201420666085.2U CN201420666085U CN204238121U CN 204238121 U CN204238121 U CN 204238121U CN 201420666085 U CN201420666085 U CN 201420666085U CN 204238121 U CN204238121 U CN 204238121U
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Abstract
The utility model discloses a kind of Wavelike steel webplate flush type opening dumbbell connecting key, comprise Wavelike steel webplate, the end of Wavelike steel webplate is provided with dumbbell shape through hole, is installed with longitudinal restraint reinforcing bar and concrete floor steel bar stress in dumbbell shape through hole respectively; Described duct, dumbbell shape through hole bottom is opening shape.The utility model improves the shear behavior of structure, enhances the bonding strength between steel web and concrete, and its structure is comparatively simple, is conducive to the colligation of reinforcing bar in work progress, shortens construction period, improve economic benefit; Circular port on Wavelike steel webplate is changed into after two semicircle adds rectangular opening or elliptical aperture, in overlap joint installation process, shank of bolt is longitudinally having certain scope of activities, convenient and temporary fixed when installing, when in installation process there is error in the location of Wavelike steel webplate, can make adjustment in next block Wavelike steel webplate installation process, doing so avoids the accumulation of error, reduce the difficulty of construction, ensure that the quality of construction simultaneously better.
Description
Technical field
The utility model belongs to Wavelike steel webplate technical field, relates to a kind of flush type opening dumbbell connecting key.
Background technology
Along with the continuous progress and development of society, the especially develop rapidly of transportation, what allow the go off daily of people become is very convenient; But, along with popularizing of the vehicles, be also growing with each passing day for demands such as traffic route bridges, especially in the area that some population density are larger, the serious quality of life having had influence on people of traffic congestion and constrain urban development, improves traffic, becomes the most important thing.Along with the development of road and bridge form of structure, therefore corrugated web bridge arises at the historic moment.
Prestressed concrete composite box-girder with corrugated steel webs is that a kind of important transverse direction bears combined member, by concrete is combined with Wavelike steel webplate, the bending resistance of concrete roof and floor and Wavelike steel webplate shearing resistance, thus make combining structure give full play to the advantage that steel tensile property is good and concrete anti-compression performance is good.In Wavelike steel webplate combined bridge, Shear connection key, as one of important primary structure member, has the function of the longitudinal shear transmitted between steel web and concrete frange plate, also plays the effect preventing concrete frange plate and Wavelike steel webplate to be vertically separated simultaneously.
At present, the shear connections key class used in Wavelike steel webplate bridge is more, there is for traditional double-row hole flush type connecting key the problem that reinforcing bar is inconvenient to install in work progress; Simultaneously, due to many employings prefabrication field erected form when Wavelike steel webplate is installed, traditional Wavelike steel webplate when mounted, usually plain bolt bar is adopted to connect between two pieces of Wavelike steel webplates, overlap adopts the form of Double-face adhesive pin welded seam, bolt hole is circular port, the impact of execution conditions and construction level is subject in field-mounted process, when causing installing there is certain error in Wavelike steel webplate location, the deviation of especially vertical elevation and lengthwise position, finally can affect steel web stress and full-bridge line style.When traditional steel web adopts bolt to overlap, bolt hole is generally circle, and adjust the problem of difficulty when this will cause Wavelike steel webplate to occur error in installation process, this improves the requirement to technical level in work progress undoubtedly, increases difficulty of construction.
Summary of the invention
In order to overcome above-mentioned deficiency of the prior art, the utility model provides a kind of flush type opening dumbbell connecting key, its object is to ensure that steel and concrete material horizontal shear force between the two effectively transmits and is beneficial to site operation; The two the semicircles simultaneously circular bolt holes on steel web being changed into horizontal direction add rectangular opening, make shank of bolt can have certain adjustment space, front and back in the horizontal direction.
The purpose of this utility model is achieved in that
Wavelike steel webplate flush type opening dumbbell connecting key, comprise Wavelike steel webplate 4, the end of Wavelike steel webplate 4 is provided with dumbbell shape through hole 3, is installed with longitudinal restraint reinforcing bar 2 and concrete floor steel bar stress 1 in dumbbell shape through hole 3 respectively; Described duct, dumbbell shape through hole 3 bottom is opening shape;
Described dumbbell shape through hole 3 is arranged along Wavelike steel webplate 4 longitudinal direction; Longitudinal restraint reinforcing bar 2 and Wavelike steel webplate 4 are linked together by welding manner;
Described dumbbell shape through hole 3 is divided into duct, top and duct, bottom, and duct, bottom is opening shape; Be installed with longitudinal restraint reinforcing bar 2 in described duct, dumbbell shape through hole 3 top, in lower duct, be installed with concrete floor steel bar stress 1; Longitudinal restraint reinforcing bar 2 is linked together by colligation or welding manner with plain bars in concrete slab;
Described Wavelike steel webplate 1 is provided with two semicircle and adds rectangle bolt hole 5; Add the shank of bolt 8 in rectangle bolt hole 5 through two semicircle, be placed on spacer for bolt 6 on shank of bolt 8 and with shank of bolt 8 with the use of nuts 7;
Described two semicircles add rectangle bolt hole 5 and elliptical aperture structure can be adopted to replace.
positive beneficial effect:the utility model is by arranging dumbbell shape through hole in Wavelike steel webplate Transducers Embedded in Concrete part, and dumbbell shape through hole top is installed with longitudinal restraint reinforcing bar in duct, and longitudinal restraint reinforcing bar Wavelike steel webplate is linked together by welding manner; Duct, dumbbell shape through hole bottom is opening shape, and is installed with concrete floor steel bar stress in duct, dumbbell shape through hole bottom; Longitudinal restraint reinforced binding through dumbbell nibs the concrete around steel plate, make the concrete in hole be subject to three-dimensional constraint and then improve the shear behavior of structure, enhance the bonding strength between steel web and concrete, and compared with traditional double-row hole flush type connecting key, its structure is comparatively simple, be conducive to the colligation of reinforcing bar in work progress, effectively shorten construction period, improve economic benefit; Circular port on Wavelike steel webplate is changed into after two semicircle adds rectangular opening or elliptical aperture, in overlap joint installation process, shank of bolt is longitudinally having certain scope of activities, convenient and temporary fixed when installing on the one hand, on the other hand when in installation process, error appears in the location of Wavelike steel webplate, can make adjustment in next block Wavelike steel webplate installation process, doing so avoids the accumulation of error, reduce the difficulty of construction, ensure that the quality of construction simultaneously better.
Accompanying drawing explanation
Fig. 1 is structural representation one of the present utility model;
Fig. 2 is structural representation two of the present utility model;
Fig. 3 is structural representation three of the present utility model;
In figure be: concrete floor steel bar stress 1, longitudinal restraint reinforcing bar 2, dumbbell shape through hole 3, Wavelike steel webplate 4, two semicircle add rectangle bolt hole 5, spacer for bolt 6, nuts 7, shank of bolt 8.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in Figure 1, Wavelike steel webplate flush type opening dumbbell connecting key, comprise Wavelike steel webplate 4, the end of Wavelike steel webplate 4 is provided with dumbbell shape through hole 3, is installed with longitudinal restraint reinforcing bar 2 and concrete floor steel bar stress 1 in dumbbell shape through hole 3 respectively; Described duct, dumbbell shape through hole 3 bottom is opening shape;
Described dumbbell shape through hole 3 is arranged along Wavelike steel webplate 4 longitudinal direction; Longitudinal restraint reinforcing bar 2 and Wavelike steel webplate 4 are linked together by welding manner;
Described dumbbell shape through hole 3 is divided into duct, top and duct, bottom, and duct, bottom is opening shape; Be installed with longitudinal restraint reinforcing bar 2 in described duct, dumbbell shape through hole 3 top, in lower duct, be installed with concrete floor steel bar stress 1; Longitudinal restraint reinforcing bar 2 is linked together by colligation or welding manner with plain bars in concrete slab;
As shown in Figure 2 and Figure 3, described Wavelike steel webplate 1 is provided with two semicircle and adds rectangle bolt hole 5; Add the shank of bolt 8 in rectangle bolt hole 5 through two semicircle, be placed on spacer for bolt 6 on shank of bolt 8 and with shank of bolt 8 with the use of nuts 7;
Described two semicircles add rectangle bolt hole 5 and elliptical aperture structure can be adopted to replace.
The utility model is by arranging dumbbell shape through hole in Wavelike steel webplate Transducers Embedded in Concrete part, and dumbbell shape through hole top is installed with longitudinal restraint reinforcing bar in duct, and longitudinal restraint reinforcing bar Wavelike steel webplate is linked together by welding manner; Duct, dumbbell shape through hole bottom is opening shape, and is installed with concrete floor steel bar stress in duct, dumbbell shape through hole bottom; Longitudinal restraint reinforced binding through dumbbell nibs the concrete around steel plate, make the concrete in hole be subject to three-dimensional constraint and then improve the shear behavior of structure, enhance the bonding strength between steel web and concrete, and compared with traditional double-row hole flush type connecting key, its structure is comparatively simple, be conducive to the colligation of reinforcing bar in work progress, effectively shorten construction period, improve economic benefit; Circular port on Wavelike steel webplate is changed into after two semicircle adds rectangular opening or elliptical aperture, in overlap joint installation process, shank of bolt is longitudinally having certain scope of activities, convenient and temporary fixed when installing on the one hand, on the other hand when in installation process, error appears in the location of Wavelike steel webplate, can make adjustment in next block Wavelike steel webplate installation process, doing so avoids the accumulation of error, reduce the difficulty of construction, ensure that the quality of construction simultaneously better.
Above case study on implementation is only for illustration of preferred embodiment of the present utility model; but the utility model is not limited to above-mentioned embodiment; in the ken that described exercising ordinary skill possesses; the any amendment done within spirit of the present utility model and principle, equivalently to substitute and improvement etc., the protection domain of the application all should be considered as.
Claims (5)
1. Wavelike steel webplate flush type opening dumbbell connecting key, comprise Wavelike steel webplate (4), it is characterized in that: the end of Wavelike steel webplate (4) is provided with dumbbell shape through hole (3), in dumbbell shape through hole (3), be installed with longitudinal restraint reinforcing bar (2) and concrete floor steel bar stress (1) respectively; Described dumbbell shape through hole (3) duct, bottom is opening shape.
2. Wavelike steel webplate flush type opening dumbbell connecting key according to claim 1, is characterized in that: described dumbbell shape through hole (3) is arranged along Wavelike steel webplate (4) longitudinal direction; Longitudinal restraint reinforcing bar (2) and Wavelike steel webplate (4) are linked together by welding manner.
3. Wavelike steel webplate flush type opening dumbbell connecting key according to claim 1, is characterized in that: described dumbbell shape through hole (3) is divided into duct, top and duct, bottom, and duct, bottom is opening shape; Be installed with longitudinal restraint reinforcing bar (2) in described dumbbell shape through hole (3) duct, top, in lower duct, be installed with concrete floor steel bar stress (1); Longitudinal restraint reinforcing bar (2) is linked together by colligation or welding manner with plain bars in concrete slab.
4. Wavelike steel webplate flush type opening dumbbell connecting key according to claim 1, is characterized in that: described Wavelike steel webplate (1) is provided with two semicircle and adds rectangle bolt hole (5); Add the shank of bolt (8) in rectangle bolt hole (5) through two semicircle, be placed on spacer for bolt (6) on shank of bolt (8) and with shank of bolt (8) with the use of nuts (7).
5. Wavelike steel webplate flush type opening dumbbell connecting key according to claim 4, is characterized in that: described two semicircles add rectangle bolt hole (5) and elliptical aperture structure can be adopted to replace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420666085.2U CN204238121U (en) | 2014-11-10 | 2014-11-10 | Wavelike steel webplate flush type opening dumbbell connecting key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420666085.2U CN204238121U (en) | 2014-11-10 | 2014-11-10 | Wavelike steel webplate flush type opening dumbbell connecting key |
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| Publication Number | Publication Date |
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| CN204238121U true CN204238121U (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420666085.2U Active CN204238121U (en) | 2014-11-10 | 2014-11-10 | Wavelike steel webplate flush type opening dumbbell connecting key |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109594464A (en) * | 2017-09-30 | 2019-04-09 | 郑州市公路管理局 | A kind of Wavelike steel webplate combined type shear connector |
| CN111749117A (en) * | 2020-06-18 | 2020-10-09 | 苏交科集团股份有限公司 | Dumbbell-shaped stud shear connector and construction method thereof |
-
2014
- 2014-11-10 CN CN201420666085.2U patent/CN204238121U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109594464A (en) * | 2017-09-30 | 2019-04-09 | 郑州市公路管理局 | A kind of Wavelike steel webplate combined type shear connector |
| CN111749117A (en) * | 2020-06-18 | 2020-10-09 | 苏交科集团股份有限公司 | Dumbbell-shaped stud shear connector and construction method thereof |
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