CN211689962U - Support-free construction supporting device for steel-concrete composite beam - Google Patents
Support-free construction supporting device for steel-concrete composite beam Download PDFInfo
- Publication number
- CN211689962U CN211689962U CN202020131526.4U CN202020131526U CN211689962U CN 211689962 U CN211689962 U CN 211689962U CN 202020131526 U CN202020131526 U CN 202020131526U CN 211689962 U CN211689962 U CN 211689962U
- Authority
- CN
- China
- Prior art keywords
- beam section
- steel
- concrete composite
- hoisting
- stentless
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a support-free construction supporting device for a steel-concrete composite beam, which comprises a positioning pair, a supporting device and a lifting device, wherein the positioning pair is arranged on the assembling surface of an installed beam section and a hoisting beam section; the supporting assembly comprises a steel cable used for connecting the installed beam section and the hoisting beam section, the middle part of the steel cable is sleeved on a pulley block arranged at the top of a transverse clapboard at the tail end of the installed beam section, one end of the steel cable is connected with a first lifting lug plate arranged at the bottom of the transverse clapboard at the middle part of the installed beam section through a first adjusting device, and the other end of the steel cable is connected with a second lifting lug plate arranged at the bottom of the transverse clapboard at the middle part of the hoisting beam section through a second adjusting device; and the connecting piece comprises a connecting plate for connecting the installed beam section and the hoisting beam section, and a connecting bolt penetrates through the connecting plate. The utility model discloses simple structure, the location is accurate, light in weight, small, construction convenience, low cost can firmly support assembling the bridge, makes things convenient for developing of follow-up work.
Description
Technical Field
The utility model belongs to the technical field of the bridge installation technique and specifically relates to a steel-concrete composite beam does not have support construction strutting arrangement.
Background
The steel-concrete composite beam bridge has the advantages of light dead weight, high rigidity, strong spanning capability, high construction speed and the like, and has wide development prospect. The existing steel-concrete composite beam bridge is generally that steel box girder segments are prefabricated in a factory, then transported to the site, and then spliced on a support such as a scaffold erected on the site. When the bridge crosses a river ditch or the traffic volume under the bridge is large, scaffolds cannot be erected due to limited conditions, and a support-free construction process is needed to avoid or reduce the mutual influence of bridge construction, road traffic under the bridge and limited space. When the support-free construction is carried out, after the steel box girder segments are lifted, the steel box girder segments are assembled and connected with the installed girder segments, and then the steel templates are installed, concrete slab reinforcing steel bars are bound, the bridge deck slab is poured, the bridge deck pavement is carried out, and the like. The existing construction device without the support is complex in structure and large in size; positioning is difficult when assembling the hoisting beam section and the installed beam section; when the assembled bridge is supported, the burden of a temporary supporting foundation is easily increased; when vehicles pass under the bridge, the temporary support of the adjacent traffic lane is impacted, and the safety of the full bridge is endangered.
Disclosure of Invention
In order to solve the above problems, the utility model provides a support-free construction supporting device for steel-concrete composite beam, which can adopt the following technical scheme:
steel-concrete composite beam does not have support construction strutting arrangement, include:
the positioning pair is arranged on the assembling surface of the installed beam section and the hoisting beam section;
the supporting assembly comprises a steel cable used for connecting the installed beam section and the hoisting beam section, the middle part of the steel cable is sleeved on a pulley block arranged at the top of a transverse clapboard at the tail end of the installed beam section, one end of the steel cable is connected with a first lifting lug plate arranged at the bottom of the transverse clapboard at the middle part of the installed beam section through a first adjusting device, and the other end of the steel cable is connected with a second lifting lug plate arranged at the bottom of the transverse clapboard at the middle part of the hoisting beam section through a second adjusting device;
and the connecting piece comprises a connecting plate for connecting the installed beam section and the hoisting beam section, and a connecting bolt penetrates through the connecting plate.
The positioning pair comprises shear keys and shear grooves which are matched with each other, and each pair of shear key and shear groove is respectively and correspondingly arranged on the assembling surface of the installed beam section and the hoisting beam section.
The shear keys and the shear grooves are arranged on the edges of the assembled surfaces of the installed beam sections and the hoisting beam sections.
The supporting components are in multiple groups and are uniformly arranged along the transverse bridge direction.
An upper wing plate is arranged at the top of the diaphragm plate at the tail end of the mounted beam section, the pulley blocks are arranged on the upper wing plate, and a vertical reinforcing rib is correspondingly arranged below each pulley block.
The first adjusting device and the first adjusting device are fork ear type adjusting riggings connected to the tail ends of the steel cables, and the fork ear type adjusting riggings are connected with the first lifting lug plate/the second lifting lug plate through lug plates.
The steel cables are symmetrically arranged along the transverse partition plate where the pulley block is located.
The included angle between the steel cable and the transverse clapboard where the pulley block is positioned is 40-50 degrees.
The installed beam sections are arranged on the bridge piers, and limiting plates are arranged between the bridge piers and the installed beam sections.
The utility model provides a steel-concrete composite beam does not have support construction strutting arrangement, simple structure, the location is accurate, light in weight, small, construction convenience can firmly support the assembly bridge, and the work of follow-up beam section connection, installation steel form, ligature concrete slab reinforcing bar, pouring decking and bridge deck pavement etc. is convenient to carry out, effectively reduces the influence to road traffic; meanwhile, parts such as the pulley, the steel cable and the like can be repeatedly used, so that the construction cost is further reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a bottom view of fig. 2.
Fig. 5 is a cross-sectional structural view of the installed beam segment end bulkhead of fig. 2.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following embodiments.
In the bridge shown in fig. 1, the left end and the right end are an installed beam section L1 and an installed beam section L2, the middle is a hoisting beam section L3 hoisted by equipment such as a crane, and the splicing surfaces of the hoisting beam section L3, the installed beam section L1 and the installed beam section L2 are respectively M1 and M2. To each concatenation face, all be provided with the steel-concrete composite beam do not have support construction strutting arrangement. The following description will specifically take the assembly surface M1 as an example.
As shown in fig. 1 and 2, a positioning pair 1 is arranged on the assembly surface M1, and the positioning pair 1 comprises a plurality of pairs of mutually matched shear keys and shear grooves arranged at the edges of the assembly surface M1 of the installed beam segment L1 and the hoisting beam segment L3, and is used for positioning work of hoisting and assembling, improving assembling accuracy, and resisting torsion and horizontal force generated in the construction of the hoisting beam segment L3. Secondly, install the supporting component of multiunit along horizontal bridge to align to the range near assembling face M1, every group supporting component structure is the same, all including being used for connecting the cable wire 2 of installing beam section and hoist and mount beam section, 2 middle parts of cable wire cup joint on assembly pulley 3, the one end of cable wire 2 is passed through first adjusting device 4.1 and is linked to each other with the first ear plate 6.1 (see figure 4) that is located the beam section middle part cross slab 5.1 bottom of having installed, the other end of cable wire 2 is passed through second adjusting device 4.2 and is located the second ear plate 6.2 of hoist and mount beam section middle part cross slab 5.2 bottom and link to each other. As shown in fig. 5, the pulley block 3 is mounted on the upper wing plate 7 on top of the diaphragm 5.3 at the end of the mounted beam section, and the steel cables 2 are symmetrically arranged along the diaphragm (i.e. the diaphragm 5.3 at the end of the mounted beam section) where the pulley block 3 is located, preferably at an angle of 45 ° to the diaphragm 5.3 at the end of the mounted beam section. The first adjusting device 4.1 and the second adjusting device 4.2 at the tail end of the steel cable 2 both adopt fork ear type adjusting rigging and are connected with the first lifting ear plate 6.1 and the second lifting ear plate 6.2 through the ear plate Q. In order to enhance the structural stability, a vertical reinforcing rib 8 corresponding to the position of each pulley block 4 is also arranged on the transverse clapboard 5.3 at the tail end of the installed beam section. Again, a connecting plate 10 fixed by a connecting bolt 9 is also installed at the joint of the spliced installed beam section L1 and the hoisting beam section L3 (see fig. 3). In addition, in order to prevent displacement of the installed beam segment L1, a position limiting plate 11 is installed before the erection splice, i.e., between the installed beam segment L1 and its corresponding pier.
When the support-free construction is carried out, firstly, a limit plate 11 is arranged between the installed beam section L1 and the pier opposite to the installed beam section, and the installed beam section is prevented from displacement L1; then, an upper wing plate 7 is installed on the top of the transverse clapboard 5.3 at the tail end of the installed beam section, and a plurality of groups (3 groups in the embodiment) of pulley blocks 3 arranged along the transverse bridge direction are installed on the upper wing plate 7 according to the beam width; a plurality of first lug plates 6.1 corresponding to the pulley block 3 are arranged at the bottom of the middle diaphragm plate 5.1 of the installed beam section, and a plurality of second lug plates 6.2 corresponding to the pulley block 3 are arranged at the bottom of the middle diaphragm plate 5.2 of the hoisting beam section; fork ear type adjusting riggings are respectively arranged at two ends of a plurality of steel cables 2 to be used as a first adjusting device 4.1 and a second adjusting device 4.2, so that each steel cable 2 spans one pulley block 3 and is connected with a corresponding first lifting lug plate 6.1/second lifting lug plate 6.2 through a lug plate Q; then, a plurality of pairs of shear keys and shear grooves which are matched with each other are installed on the edges of an assembled surface M1 of an installed beam section L1 and a hoisting beam section L3 to serve as a positioning pair 1, when equipment such as a crane is used for hoisting the hoisting beam section L3, the hoisting beam section L3 is adjusted to be in place through the positioning pair 1, after the installed beam section L1 and the hoisting beam section L3 are aligned, the installed beam section L1 and the hoisting beam section L3 are connected and fixed through a connecting plate 10 with a connecting bolt 9, the length of the steel cable 2 is adjusted through a first adjusting device 4.1 and a second adjusting device 4.2, and the steel cable 2 forms firm support for the installed beam section L1 and the hoisting beam section L3; then the steel cable 2 and the pulley block 3 are dismantled and installed on other splicing surfaces to support the beam body; and then, installing a steel template, binding concrete slab reinforcing steel bars, pouring a bridge deck slab, paving a bridge deck and the like. And the steel cable 2 and the pulley block 3 can be dismantled to finish construction after the bridge deck pavement is finished according to requirements.
Claims (9)
1. The utility model provides a steel-concrete composite beam does not have support construction strutting arrangement which characterized in that: the method comprises the following steps:
the positioning pair is arranged on the assembling surface of the installed beam section and the hoisting beam section;
the supporting assembly comprises a steel cable used for connecting the installed beam section and the hoisting beam section, the middle part of the steel cable is sleeved on a pulley block arranged at the top of a transverse clapboard at the tail end of the installed beam section, one end of the steel cable is connected with a first lifting lug plate arranged at the bottom of the transverse clapboard at the middle part of the installed beam section through a first adjusting device, and the other end of the steel cable is connected with a second lifting lug plate arranged at the bottom of the transverse clapboard at the middle part of the hoisting beam section through a second adjusting device;
and the connecting piece comprises a connecting plate for connecting the installed beam section and the hoisting beam section, and a connecting bolt penetrates through the connecting plate.
2. The steel-concrete composite beam support device for stentless construction according to claim 1, wherein: the positioning pair comprises shear keys and shear grooves which are matched with each other, and each pair of shear key and shear groove is respectively and correspondingly arranged on the assembling surface of the installed beam section and the hoisting beam section.
3. The steel-concrete composite beam support device for stentless construction according to claim 2, wherein: the shear keys and the shear grooves are arranged on the edges of the assembled surfaces of the installed beam sections and the hoisting beam sections.
4. The steel-concrete composite beam support device for stentless construction according to claim 1, wherein: the supporting components are in multiple groups and are uniformly arranged along the transverse bridge direction.
5. The steel-concrete composite beam support device for stentless construction according to claim 1 or 4, wherein: an upper wing plate is arranged at the top of the diaphragm plate at the tail end of the mounted beam section, the pulley blocks are arranged on the upper wing plate, and a vertical reinforcing rib is correspondingly arranged below each pulley block.
6. The steel-concrete composite beam support device for stentless construction according to claim 1 or 4, wherein: the first adjusting device and the first adjusting device are fork ear type adjusting riggings connected to the tail ends of the steel cables, and the fork ear type adjusting riggings are connected with the first lifting lug plate/the second lifting lug plate through lug plates.
7. The steel-concrete composite beam support device for stentless construction according to claim 1 or 4, wherein: the steel cables are symmetrically arranged along the transverse partition plate where the pulley block is located.
8. The steel-concrete composite beam support device for stentless construction according to claim 1 or 4, wherein: the included angle between the steel cable and the transverse clapboard where the pulley block is positioned is 40-50 degrees.
9. The steel-concrete composite beam support device for stentless construction according to claim 1, wherein: the installed beam sections are arranged on the bridge piers, and limiting plates are arranged between the bridge piers and the installed beam sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020131526.4U CN211689962U (en) | 2020-01-20 | 2020-01-20 | Support-free construction supporting device for steel-concrete composite beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020131526.4U CN211689962U (en) | 2020-01-20 | 2020-01-20 | Support-free construction supporting device for steel-concrete composite beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211689962U true CN211689962U (en) | 2020-10-16 |
Family
ID=72774104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020131526.4U Active CN211689962U (en) | 2020-01-20 | 2020-01-20 | Support-free construction supporting device for steel-concrete composite beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211689962U (en) |
-
2020
- 2020-01-20 CN CN202020131526.4U patent/CN211689962U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110820594B (en) | Symmetrical cantilever construction process suitable for expansion joint bridge pier | |
| CN108978434B (en) | Bracket-free industrialized construction method of steel-concrete combined continuous box girder bridge | |
| CN113481826B (en) | Prefabricated assembled corrugated steel web plate combined box girder | |
| CN111119071A (en) | Construction method for assembling precast concrete segment box girder | |
| CN112030772A (en) | Rapid construction method of continuous rigid frame bridge | |
| CN112458877A (en) | Assembled steel-concrete combined rigid frame bridge and construction method thereof | |
| CN112281631A (en) | Segmental prefabricated composite section backbone bridge structure system | |
| CN111979891A (en) | Semi-through type rectangular concrete-filled steel tube combined truss girder bridge and construction method | |
| CN111119065B (en) | Steel-concrete composite beam support-free construction process | |
| CN108589507B (en) | Full-assembled precast concrete beam bridge superstructure and construction method thereof | |
| CN212582727U (en) | Modular assembly type retaining wall | |
| CN211689962U (en) | Support-free construction supporting device for steel-concrete composite beam | |
| CN112458879A (en) | Bolt-welding mixed-connection segmented prefabricated assembled combination beam and construction method thereof | |
| CN205501788U (en) | Convertiblely salvage roof beam for permanent bridge structures's high -speed railway | |
| CN110983992A (en) | Cantilever assembling construction process for double-U-box type composite variable-section assembled continuous beam bridge | |
| CN116837967A (en) | Construction method of large-span cable-stayed truss structure | |
| CN111851307A (en) | Large-span prefabricated assembly type corrugated web combined box girder transportation frame construction method | |
| CN109722981A (en) | A kind of landscaping walking-bridge and its construction method of installation using Sarasota structure | |
| CN214459551U (en) | Bolt welding type combined continuous beam between segments | |
| CN211395312U (en) | Upper structure for wide box girder and short tower cable-stayed bridge | |
| CN209779429U (en) | Landscape walking bridge applying cable tower structure | |
| CN109629454B (en) | Bridging equipment and bridging method for lifting segmental beam on single side | |
| CN112458878A (en) | Segmental assembling steel-concrete combined continuous beam and construction method thereof | |
| CN111472284A (en) | Assembling method for cantilever of prefabricated segmental beam portal crane of urban viaduct | |
| CN112982169A (en) | Mounting method of through tied arch bridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |