CN209798518U - Assembled burst bent cap - Google Patents
Assembled burst bent cap Download PDFInfo
- Publication number
- CN209798518U CN209798518U CN201920425390.5U CN201920425390U CN209798518U CN 209798518 U CN209798518 U CN 209798518U CN 201920425390 U CN201920425390 U CN 201920425390U CN 209798518 U CN209798518 U CN 209798518U
- Authority
- CN
- China
- Prior art keywords
- bent cap
- piece
- piece bent
- reinforcing bar
- assembled
- 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.)
- Withdrawn - After Issue
Links
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 21
- 239000004574 high-performance concrete Substances 0.000 claims description 10
- 239000011374 ultra-high-performance concrete Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 abstract description 16
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000011218 segmentation Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses an assembled burst bent cap, which comprises a column, the lower extreme surface of stand is provided with B piece bent cap, the upper end of B piece bent cap is provided with A piece bent cap, it reserves reinforcing bar and B piece bent cap reservation reinforcing bar to be provided with A piece bent cap between B piece bent cap and the A piece bent cap, A piece bent cap reservation reinforcing bar sets up in the lower extreme surface of A piece bent cap. Assembled burst bent cap, fall into independent multi-disc bent cap with large-scale bent cap, every bent cap is a complete bent cap structure, under the condition that does not need interim support, can directly realize being connected with the stand, after accomplishing each burst bent cap and being connected of stand, realize the connection between each piece again, accelerated the construction speed greatly, adopted longitudinal connection's form simultaneously, to a great extent has improved the reliability of structure, brings better use prospect.
Description
Technical Field
The utility model relates to an assembled burst bent cap technical field, in particular to assembled burst bent cap.
Background
The traditional bridge construction mode is mainly based on cast-in-place, a large amount of manual work is needed on site to carry out work such as support erection, steel bar binding and the like, the construction period is long, the danger is high, the efficiency is low, and meanwhile, the influence on the surrounding environment and road traffic is large. With the development of the assembly type technology, the bridge assembly type construction is also greatly developed. The assembly type construction of the bridge is to prefabricate main components of a bridge structure in a factory and then transport the bridge structure to the site for hoisting and splicing. The assembly type construction of the bridge avoids building a support on site, and is an effective means for accelerating the construction speed, reducing the site pollution and realizing low-carbon construction. The assembled technique of bridge superstructure has more maturely now, also has a large amount of research in recent years to the assembled of substructure, has more patents to the connected form of stand and cushion cap, stand and bent cap especially and produces, utility model grouting multiple forms such as muffjoint, grout corrugated metal pipe connection. But the assembled technology of the bent cap is less considered, and an integral prefabricated construction mode is basically adopted. However, in engineering practice, the weight of the bent cap is often heavy, the bent cap is limited by transportation conditions and hoisting space (generally, the transportation is difficult when the weight exceeds 250 tons), the integral prefabrication construction mode cannot be adopted, and sectional prefabrication and assembly on site must be considered.
The currently available forms of segmentation are mainly focused on transverse segmentation, i.e. division into multiple segments, typically 3 or 2 segments, along the length of the capping beam. Each segment is prefabricated in a factory and then transported to the site for assembly. Although the construction of the segmentation method can avoid the adoption of a full-space support, the left and right two sections of assembled sections can not obtain effective support in the construction process, temporary support points still need to be arranged, the temporary support can be detached after the joint reaches the design strength or the tension prestress, and the traffic on two sides can still be influenced. Therefore, the transverse segmentation mode still has certain problems and also has the utility model proposes to adopt the form of longitudinal segmentation, namely, the longitudinal segmentation is divided into a plurality of pieces along the width direction of the bent cap, each piece can be a complete bent cap structure, the transverse segmentation mode is divided into two pieces under typical conditions, the prestress can be generally adopted for dry joint connection, and the prestress not only serves as a temporary connection measure, but also serves as a permanent stress measure. In addition, the cover beam has small size in the thickness direction, and the prestress anchoring problem makes the prestress effect difficult to play, so the connection form engineering is not suitable, and a novel assembly type split cover beam is provided.
SUMMERY OF THE UTILITY MODEL
in order to overcome the defects of the prior art, the utility model aims to provide a construction problem is more convenient, and the structure is more reliable assembled burst bent cap.
The purpose of the utility model is realized by adopting the following technical scheme: the utility model discloses an assembled burst bent cap, which comprises a column, the lower extreme surface of stand is provided with B piece bent cap, the upper end of B piece bent cap is provided with A piece bent cap, it reserves reinforcing bar and B piece bent cap reservation reinforcing bar to be provided with A piece bent cap between B piece bent cap and the A piece bent cap, A piece bent cap reservation reinforcing bar sets up in the lower extreme surface of A piece bent cap, B piece bent cap reservation reinforcing bar sets up in the upper end surface of B piece bent cap, A piece bent cap reservation reinforcing bar and B piece bent cap reservation reinforcing bar are provided with high performance concrete or ultra high performance concrete joint.
The utility model has the advantages that:
The utility model discloses an assembled burst bent cap, fall into independent multi-disc bent cap with large-scale bent cap, every piece bent cap is a complete bent cap structure, under the condition that does not need interim support, can directly realize being connected with the stand, after accomplishing each burst bent cap and being connected of stand, realize the connection between each piece again, construction speed has been accelerated greatly, longitudinal connection's form has been adopted simultaneously, to a great extent has improved the reliability of structure (the bent cap uses horizontal atress as leading), and the operation is convenient, the effect of use is better for traditional mode.
Drawings
FIG. 1 is a schematic structural view of a cast-in-place construction method of a bent cap;
FIG. 2 is a schematic view of a first segmented cover beam according to the present embodiment;
FIG. 3 is a schematic view of a second segmented cover beam according to the present embodiment;
FIG. 4 is a schematic diagram of the first assembled state in this embodiment;
Fig. 5 is a schematic diagram of the second assembled structure in this embodiment.
In the figure: the concrete joint comprises 1A cover beam, 2 columns, 3B cover beams, 4A cover beam reserved steel bars, 5B cover beam reserved steel bars, and 6 high-performance concrete joints or ultrahigh-performance concrete joints.
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, so as to fully understand the objects, the features and the effects of the present invention.
Example 1
as shown in fig. 1 to 5, the utility model discloses an assembled burst bent cap, including stand 2, stand 2's lower extreme surface is provided with B piece bent cap 3, B piece bent cap 3's upper end is provided with A piece bent cap 1, be provided with A piece bent cap between B piece bent cap 3 and the A piece bent cap 1 and reserve reinforcing bar 4 and B piece bent cap reservation reinforcing bar 5, A piece bent cap reservation reinforcing bar 4 sets up in the lower extreme surface of A piece bent cap 1, B piece bent cap reservation reinforcing bar 5 sets up in the upper end surface of B piece bent cap 3, A piece bent cap reservation reinforcing bar 4 and B piece bent cap reservation reinforcing bar 5 between be provided with high performance concrete or ultra-high performance concrete joint 6.
The utility model discloses a connection method of assembled burst bent cap, including following step:
(S1) adopting a sectional form of longitudinal divided pieces, each piece being secured as a finished bent cap structure;
(S2) reserving a joint notch in each cover beam, and reserving a U-shaped joint in the notch on the upper and lower edges of the cover beam in a longitudinal stress reinforcing steel bar;
(S3) the notch may be in various forms such as a rectangle, and may be in a trapezoidal or inverted trapezoidal shape in order to prevent stress concentration at the corner;
(S4) except the connection part with the upright post 2, the other parts can be provided with notches which can be communicated to form seams;
(S5) the U-shaped steel bars at the notches are mutually crossed and overlapped, and high-performance concrete materials are poured at the notches to realize the connection of the two split bent caps. The high-performance concrete material is a high-performance concrete material or an ultrahigh-performance concrete material.
the operation principle of the embodiment is simple, the whole structure consists of an A-piece cover beam 1, an upright post 2, a B-piece cover beam 3, an A-piece cover beam reserved steel bar 4, a B-piece cover beam reserved steel bar 5 and a high-performance concrete or ultra-high-performance concrete joint 6, the split cover beams are prefabricated in a factory, and a reserved notch (a notch is the position of a section line and a space filled with the high-performance concrete or ultra-high-performance concrete joint 6 in the later period) and the notch A-piece cover beam reserved steel bar 4 and the B-piece cover beam reserved steel bar 5 are formed; the connection between the bent cap and the upright post 2 can adopt the connection form of grouting sleeves and the like, and a connecting piece connected with the upright post 2 is reserved in the bent cap; the A cover beam 1 is transported to the site, the A cover beam 1 is lifted, the A cover beam 1 is assembled on the upright post 2, and the connection between the A cover beam 1 and the upright post 2 is completed; hoisting the B-piece cover beam 3, and realizing the connection of the B-piece cover beam 3 and the upright post 2 by the same method; the connection of the bent cap is realized by pouring a notch by adopting a high-performance concrete or ultra-high performance concrete joint 6; the construction of superstructure is carried out, comparatively practical.
the foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (1)
1. An assembled slicing bent cap, includes stand (2), its characterized in that: the lower extreme surface of stand (2) is provided with B piece bent cap (3), the upper end of B piece bent cap (3) is provided with A piece bent cap (1), be provided with A piece bent cap reservation reinforcing bar (4) and B piece bent cap reservation reinforcing bar (5) between B piece bent cap (3) and A piece bent cap (1), A piece bent cap reservation reinforcing bar (4) set up in the lower extreme surface of A piece bent cap (1), B piece bent cap reservation reinforcing bar (5) set up in the upper end surface of B piece bent cap (3), be provided with high performance concrete or ultra-high performance concrete joint (6) between A piece bent cap reservation reinforcing bar (4) and B piece bent cap reservation reinforcing bar (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920425390.5U CN209798518U (en) | 2019-04-01 | 2019-04-01 | Assembled burst bent cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920425390.5U CN209798518U (en) | 2019-04-01 | 2019-04-01 | Assembled burst bent cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209798518U true CN209798518U (en) | 2019-12-17 |
Family
ID=68827278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920425390.5U Withdrawn - After Issue CN209798518U (en) | 2019-04-01 | 2019-04-01 | Assembled burst bent cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209798518U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826090A (en) * | 2019-04-01 | 2019-05-31 | 上海市城市建设设计研究总院（集团）有限公司 | Assembled fragment bent cap and attaching method thereof |
-
2019
- 2019-04-01 CN CN201920425390.5U patent/CN209798518U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826090A (en) * | 2019-04-01 | 2019-05-31 | 上海市城市建设设计研究总院（集团）有限公司 | Assembled fragment bent cap and attaching method thereof |
| CN109826090B (en) * | 2019-04-01 | 2024-03-12 | 上海市城市建设设计研究总院（集团）有限公司 | Assembled type segmented bent cap and connecting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191217 Effective date of abandoning: 20240312 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20191217 Effective date of abandoning: 20240312 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |