CN111705629A - Integrally prefabricated assembled combined bent cap and construction method thereof - Google Patents
Integrally prefabricated assembled combined bent cap and construction method thereof Download PDFInfo
- Publication number
- CN111705629A CN111705629A CN202010482691.9A CN202010482691A CN111705629A CN 111705629 A CN111705629 A CN 111705629A CN 202010482691 A CN202010482691 A CN 202010482691A CN 111705629 A CN111705629 A CN 111705629A
- Authority
- CN
- China
- Prior art keywords
- bent cap
- connecting section
- bridge pier
- beam body
- shear key
- 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.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an integrally prefabricated assembled composite capping beam and a construction method thereof, wherein the integrally prefabricated assembled composite capping beam comprises a plate body, a beam body, a capping beam pier connecting section, a shear key and a grouting sleeve; the construction method comprises the following steps: completing the manufacture of the beam body, and welding a shear key on the beam body; step two: arranging a grouting sleeve and installing the beam body in place, and pouring a plate body and a bent cap bridge pier connecting section; step three: transporting the plate body, the beam body, the bent cap bridge pier connecting section, the shear key and the grouting sleeve to a construction site, and completing site hoisting in place; and (5) grouting the grouting material in the grouting sleeve to complete the field assembly. The connecting section of the slab body and the bent cap bridge pier prefabricated by concrete has the characteristic of good compression performance, the conventional concrete bent cap and prestressed concrete bent cap structures are improved, the steel beam and the concrete slab are connected into a whole through the shear key, the weight is far smaller than that of the solid concrete bent cap with the same external dimension, and the construction operation on site is facilitated.
Description
Technical Field
The invention relates to the technical field of bent cap construction, in particular to an integrally prefabricated assembled combined bent cap and a construction method thereof.
Background
In the existing capping beam construction, due to the limitation of hoisting and transportation capacity in a construction site, a large-size capping beam is difficult to construct by adopting a prefabrication and assembly process. In order to expand the application range of the large-size bent cap, a large-tonnage crane is usually adopted to carry out construction and assembly operation on site or a sectional prefabrication mode is adopted.
The construction and assembly operation carried out by adopting a large-tonnage crane can bring higher crane platform shift cost, and the working procedure is more complicated by adopting a sectional prefabrication mode.
The person skilled in the art is dedicated to solving the above technical drawbacks.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, a technical object of the present invention is to solve the problems mentioned in the above-mentioned background art.
In order to realize the technical purpose, the invention provides an integrally prefabricated assembled combined capping beam which at least comprises a plate body, a beam body, a capping beam pier connecting section, a shear key and a grouting sleeve; the plate body and the bent cap bridge pier connecting section are connected into a whole through the shear key, the beam body and the bent cap bridge pier connecting section are connected into a whole through the shear key, and the grouting sleeve is arranged in the bent cap bridge pier connecting section.
Preferably, the plate body and the bent cap bridge pier connecting section are both made of concrete.
Preferably, the beam body is made of steel.
Preferably, the shear key is made of perforated steel plates or shear nails.
Preferably, the external part of the structure of the integral prefabricated assembled combined bent cap is provided with prestressed steel bundles.
The invention also provides an integrally prefabricated assembled combined bent cap and a construction method thereof, wherein the integrally prefabricated assembled combined bent cap comprises the following steps:
the method comprises the following steps: the beam body is manufactured in a steel structure processing plant, and the shear strength is welded on the beam body;
step two: after the grouting sleeve is arranged and the beam body is installed in place, the connecting section of the plate body and the bent cap bridge pier is poured;
step three: transporting the plate body, the beam body, the bent cap bridge pier connecting section, the shear key and the grouting sleeve to a construction site, and completing site hoisting and positioning by using a hoisting tool; and (5) grouting the grouting material in the grouting sleeve to complete the field assembly.
The invention has the beneficial effects that:
according to the invention, due to the structural design, the construction method is good, the connecting section of the pier of the bent cap beam and the plate body prefabricated by concrete has the characteristic of good compression performance, the conventional concrete bent cap beam and prestressed concrete bent cap beam structure at present is improved, the steel beam and the concrete slab are connected into a whole through the shear key, the weight is far smaller than that of the solid concrete bent cap beam with the same external dimension, and the construction operation on site is convenient to carry out.
Drawings
FIG. 1 is a schematic view of the bending moment of the bent cap beam under a constant load according to the present invention;
FIG. 2 is a schematic structural view of the present invention as a whole;
FIG. 3 is a schematic structural view of the cross-section A-A in FIG. 2;
FIG. 4 is a schematic structural view of a cross-section B-B in FIG. 2;
FIG. 5 is a schematic view showing a state of a first step of the construction method of the present invention;
FIG. 6 is a schematic view showing a state of a first step of the construction method of the present invention;
FIG. 7 is a schematic view showing a state of a third step of the construction method of the present invention.
In the figure: 1 concrete slab, 2 steel beams, 3 bent cap pier connecting sections, 4 shear keys and 5 grouting sleeves.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Example (b):
as shown in fig. 1, the bending moment diagram shows that the upper edge of the bent cap structure is pulled and the lower edge is compressed under the action of constant live load, and in consideration of the characteristics of good tensile property of a steel structure and good compression property of a concrete structure, a concrete slab 1 is arranged at the lower edge of the bent cap structure, and a steel beam 2 is arranged at the upper edge.
As shown in fig. 2, the integrally precast and assembled capping beam is structurally designed according to the analysis result of fig. 1, and includes a concrete slab 1, a steel beam 2, a capping beam pier connection section 3, a shear key 4, and a grouting sleeve 5.
As shown in fig. 3, the concrete slab 1 and the steel beam 2 are connected into a whole through the shear key 4, and the shear key 4 can transmit shear force, so that the two can bear force together.
As shown in fig. 4, the steel beam 2 and the bent cap pier connecting section 3 are connected into a whole through a shear key 4, so that the two can bear force together; the concrete slab 1 and the bent cap bridge pier connecting section 3 are both of reinforced concrete structures and are integrally poured during factory manufacture, so that force can be transmitted between the concrete slab 1 and the bent cap bridge pier connecting section; thus, the concrete slab 1, the steel beam 2 and the bent cap bridge pier connecting section 3 form an integrated bent cap structure capable of transmitting force; the grout sleeve 5 is arranged in the capping beam pier connecting section 3, so that the capping beam can be connected with the precast concrete pier like other concrete capping beams arranged with the grout sleeve 5.
The principle of the invention is as follows: by utilizing the characteristics of good tensile property of a steel structure and good compression property of a concrete structure, the steel beam 2, the concrete slab 1 and the capping beam pier connecting section 3 are connected into a whole by utilizing the shear force key 4, the weight of the capping beam is reduced, and the requirement of reducing the weight of the structure by transportation and hoisting in construction can be met.
In some embodiments, external prestressing steel strands may be added to apply additional bending moments in the cap beam structure, increasing the bending resistance load carrying capacity of the cap beam structure.
In some embodiments, UHPC material may be used to form the concrete slab 1, which improves the compression resistance of the concrete slab 1 and further improves the bending resistance and load-bearing capacity of the bent structure.
In some embodiments, the steel beams 2 may be made of a weathering steel, further improving the durability of the capping beam structure.
As shown in fig. 5-7, the invention also provides a construction method of the integrally prefabricated assembled composite bent cap, which comprises the following steps:
the method comprises the following steps: the steel beam 2 is manufactured in a steel structure processing factory, and the shear key 4 is welded on the steel beam;
step two: after arranging the grouting sleeve 5 and installing the steel beam 2 in place, pouring the concrete slab 1 and the bent cap pier connecting section 3;
step three: transporting the concrete slab 1, the steel beam 2, the bent cap pier connecting section 3, the shear key 4 and the grouting sleeve 5 to a construction site, and completing site hoisting and positioning by using a crane; grouting material is poured into the grouting sleeve 5 to complete the field assembly of the bent cap.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (5)
1. The utility model provides an integral prefabrication assembles combination bent cap which characterized in that: the composite slab at least comprises a slab body, a beam body, a bent cap bridge pier connecting section, a shear key and a grouting sleeve; the plate body and the bent cap bridge pier connecting section are connected into a whole through the shear key, the beam body and the bent cap bridge pier connecting section are connected into a whole through the shear key, and the grouting sleeve is arranged in the bent cap bridge pier connecting section.
2. The integrally prefabricated assembled composite bent cap of claim 1, wherein: the plate body and the bent cap bridge pier connecting section are made of concrete.
3. The integrally prefabricated assembled composite bent cap of claim 1, wherein: the beam body is made of steel.
4. The integrally prefabricated assembled composite bent cap of claim 1, wherein: and prestressed steel bundles are arranged outside the structure of the integral prefabricated assembled composite bent cap.
5. A construction method for integrally prefabricating, assembling and combining a bent cap comprises the following steps:
the method comprises the following steps: the beam body is manufactured in a steel structure processing plant, and the shear strength is welded on the beam body;
step two: after the grouting sleeve is arranged and the beam body is installed in place, the connecting section of the plate body and the bent cap bridge pier is poured;
step three: transporting the plate body, the beam body, the bent cap bridge pier connecting section, the shear key and the grouting sleeve to a construction site, and completing site hoisting and positioning by using a hoisting tool; and (5) grouting the grouting material in the grouting sleeve to complete the field assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010482691.9A CN111705629A (en) | 2020-06-01 | 2020-06-01 | Integrally prefabricated assembled combined bent cap and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010482691.9A CN111705629A (en) | 2020-06-01 | 2020-06-01 | Integrally prefabricated assembled combined bent cap and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111705629A true CN111705629A (en) | 2020-09-25 |
Family
ID=72537336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010482691.9A Pending CN111705629A (en) | 2020-06-01 | 2020-06-01 | Integrally prefabricated assembled combined bent cap and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111705629A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635349A (en) * | 2021-12-06 | 2022-06-17 | 中交第二公路勘察设计研究院有限公司 | Light-duty assembled pier suitable for non-violent earthquake district |
-
2020
- 2020-06-01 CN CN202010482691.9A patent/CN111705629A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635349A (en) * | 2021-12-06 | 2022-06-17 | 中交第二公路勘察设计研究院有限公司 | Light-duty assembled pier suitable for non-violent earthquake district |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6915615B2 (en) | Prestressed composite truss girder and construction method of the same | |
| CN113481826B (en) | Prefabricated assembled corrugated steel web plate combined box girder | |
| CN109653350B (en) | Mixed reinforcement embedded low-prestress dry beam column node and method | |
| CN110004822A (en) | The wet seam of precast concrete beam connects design | |
| CN110847021A (en) | High-performance light connecting structure of assembled bent cap-pier | |
| CN107842132B (en) | Connecting device and connecting method for bending shear resistant precast reinforced concrete shear wall | |
| CN210916962U (en) | Segmental precast beam of cantilever assembly bridge and splicing structure thereof | |
| CN111705629A (en) | Integrally prefabricated assembled combined bent cap and construction method thereof | |
| KR100274141B1 (en) | Manufacturing method of preplex composite beem by divisional method | |
| CN212294321U (en) | Integral prefabricated assembled combined bent cap | |
| CN217869978U (en) | Steel-concrete combined bridge deck and wet seam structure thereof | |
| CN113026555A (en) | Combined beam structure of prefabricated steel plate beam and combined bridge deck | |
| CN218116110U (en) | Prefabricated assembled double-layer concrete-filled steel tube combined pier structure | |
| CN218813186U (en) | Cast-in-situ connecting structure of steel-concrete composite beam | |
| CN115772848A (en) | Single-layer reinforcement hollow prefabricated pier with built-in metal corrugated pipe | |
| CN115928882A (en) | Assembled composite structure hybrid connection node suitable for coastal region | |
| CN213625221U (en) | Wet seam structure of prefabricated decking | |
| CN211689866U (en) | High-performance light connecting structure of assembled bent cap-pier | |
| CN103938732A (en) | Combination joint of prefabricated concrete beam and rectangular concrete filled steel tubular column connected through pre-stressed steel bars and common steel bars | |
| CN213390771U (en) | Welding-free laminated plate | |
| CN212742169U (en) | Steel stand and concrete cushion cap connection structure | |
| CN108643350A (en) | A kind of prefabricated assembled concrete continuous beam is bolted dry type node | |
| CN212103635U (en) | Pier structure is assembled in prefabrication based on UHPC seam | |
| CN210767210U (en) | Fabricated building structure system | |
| CN211256620U (en) | Assembled combination case roof beam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |