CN113186875A - Steel plate type chain tying ring for caisson type floating dock anchor block - Google Patents
Steel plate type chain tying ring for caisson type floating dock anchor block Download PDFInfo
- Publication number
- CN113186875A CN113186875A CN202110309492.2A CN202110309492A CN113186875A CN 113186875 A CN113186875 A CN 113186875A CN 202110309492 A CN202110309492 A CN 202110309492A CN 113186875 A CN113186875 A CN 113186875A
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- China
- Prior art keywords
- plate
- anchor block
- caisson
- floating dock
- reinforcing rib
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/20—Equipment for shipping on coasts, in harbours or on other fixed marine structures, e.g. bollards
- E02B3/24—Mooring posts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
Abstract
The invention belongs to the field of anchoring of a floating dock, and particularly discloses a steel plate type chain tying ring for an anchor block of a caisson type floating dock. The external force transmitted by the anchor chain is transmitted to the front shear plate and the rear shear plate by the main plate, the shear plates have certain width to ensure that the local overstock stress of concrete and the impact cutting checking calculation of the embedded part meet the requirements, the beneficial effect of the horizontal soil resistance of the backfilled stone outside the caisson type anchor block on the anchor design can be fully exerted, the anchor block is more economic and does not influence the navigation of ships, the chain ring cannot be pulled out or the concrete of the anchor block is punched and damaged.
Description
Technical Field
The invention relates to the field of anchoring of a floating dock, in particular to a steel plate type chain tying ring for an anchor block of a caisson type floating dock.
Background
Currently, there are generally three types of tie links for ground cattle:
1) the round steel is bent into a tie ring, the anchor chain is connected with the tie ring through a tail end shackle, the part of the tie ring embedded in the underground ox concrete is connected with the anchorage steel plate or the anchorage channel steel to ensure that the local part of the concrete cannot be crushed, the underground ox concrete cannot be damaged by punching, the embedded part of the tie ring cannot be pulled out, and the tie ring can only be used for the use working condition that the stress is small and the main stress direction is vertical upwards.
2) The steel plate is used as a pull lug, the anchor chain is connected with the pull lug through a tail end shackle, the pull lug steel plate is buried in the ground cow concrete to a certain depth and is welded with the anchorage steel plate or the anchorage channel steel to ensure that the anti-impact cutting checking calculation of the buried part meets the requirement, and the setting direction of the pull lug steel plate is consistent with the main stress direction. In this way, the anchor block structure top needs to be at least 1.5m higher than the anchor chain to end shackle connection point. If the underwater anchor block adopts the structure, the structural top of the anchor block at least needs to be 1.5m higher than the connecting point of the anchor chain and the tail end shackle, and if the anchor block is positioned in a channel area, the navigation of a ship is possibly influenced; if the excavation depth of the foundation trench is increased to reduce the top elevation of the anchor block structure so as to avoid influencing the navigation of the ship, the difficulty is brought to the foundation trench dredging and the engineering construction cost is increased.
3) If the chain link atress uses the horizontal force to give first place to, pre-buried a certain amount of bolt in the ox concrete structure, the certain length of bolt outcrop, later installation is equipped with the steel construction of the terminal shackle of easy to assemble anchor chain, and the steel construction base is equipped with the reservation bolt hole, because the bolt can appear becoming flexible and corroding in the use, if adopt this kind of structural style, the later stage needs periodic inspection and maintenance.
Disclosure of Invention
The present invention is directed to a steel plate type chain link for anchor blocks of a caisson-type floating dock, which solves the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: a steel plate type chain link for an anchor block of a caisson type floating dock is characterized in that the lower part of the chain link is embedded in anchor block concrete and comprises a main plate, an additional lug plate, a front shear plate, a rear shear plate, an upper reinforcing rib plate, a lower reinforcing rib plate and a reinforcement cage; the front shear resisting plate and the rear shear resisting plate are parallel to each other and are respectively and vertically welded on the front side and the rear side of the main plate, upper reinforcing rib plates are respectively welded on the two sides of the upper part of the main plate on one side of the front shear resisting plate and one side of the rear shear resisting plate, and lower reinforcing rib plates for connecting the front shear resisting plate and the rear shear resisting plate are welded on the two sides of the lower part of the main plate; the steel reinforcement cage is buried in anchor block concrete, and encloses the part that the tie-rod ring is buried in anchor block concrete.
Preferably, a tether hole is reserved at the top of the main board, the additional ear plates are arranged at positions corresponding to the tether hole on two sides of the main board, and a through hole exposing the tether hole is formed in the middle of the additional ear plates.
Preferably, an outwardly extending end shackle is secured to the attachment ear plate and is coupled to the tether aperture.
Preferably, the upper reinforcing rib plate is vertically welded on two sides of the main plate and is respectively and vertically and fixedly connected with the corresponding front shear plate and the corresponding rear shear plate.
Preferably, the lower reinforcing rib plates are vertically and symmetrically welded to two sides of the main plate and are respectively vertically welded to the front shear plate and the rear shear plate.
Preferably, vibrating holes for pouring concrete are reserved in the main plate, the upper reinforcing rib plate and the lower reinforcing rib plate.
Compared with the prior art, the invention has the beneficial effects that:
the external force transmitted by the anchor chain is transmitted to the front shear-resisting plate and the rear shear-resisting plate by the main plate, and the shear-resisting plates have certain width so as to ensure that the local overstock stress of the concrete and the anti-impact cutting checking calculation of the embedded part meet the requirements; the external force is transmitted to the caisson type anchor block by the shear resistant plate, and the caisson type anchor block resists the external force by utilizing the friction force of the substrate and the horizontal soil resistance of the external backfilling stone, so that the beneficial effect of the horizontal soil resistance of the external backfilling stone of the caisson type anchor block on the anchor design can be fully exerted, the anchor block is more economic, and the navigation of a ship is not influenced; the upper and lower reinforcing ribs cooperate with the components of the tie link and ensure that the tie link is not pulled out or the anchor block concrete is not die cut and damaged. Compared with the traditional type of chain ring, the invention is suitable for the use working condition which mainly takes horizontal stress and has large horizontal stress, and the chain ring and the anchor block concrete are poured together, so the bolt loosening and corrosion conditions do not need to be considered, and the maintenance is not needed during the trial period. Because the external force transmitted by the anchor chain of the floating dock is generated by irregular wave action and shows periodic irregular cyclic acting force, the anchor block is particularly suitable for the caisson type anchor block of the large-scale floating dock.
Drawings
FIG. 1 is a schematic view of the overall construction of the tie link of the present invention;
fig. 2 is a schematic cross-sectional view of the fastener link of the present invention embedded within the concrete inner portion of an anchor block.
In the figure: 1. a main board; 2. an additional ear plate; 3. front shear plates; 4. a rear shear plate; 5. an upper reinforcing rib plate; 6. a lower reinforcing rib plate; 7. a reinforcement cage; 8. anchor block concrete; 9. vibrating the hole; 10. and (4) end shackle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1: referring to fig. 1-2, the present invention provides a technical solution: a steel plate type chain link for an anchor block of a caisson type floating dock is characterized in that the lower part of the chain link is embedded in anchor block concrete 8 and comprises a main plate 1, an additional lug plate 2, a front shear resisting plate 3, a rear shear resisting plate 4, an upper reinforcing rib plate 5, a lower reinforcing rib plate 6 and a reinforcement cage 7;
the front shear resistant plate 3 and the rear shear resistant plate 4 are parallel to each other and are vertically welded to the front side and the rear side of the main plate 1 respectively, upper reinforcing ribs 5 are welded to the two sides of the upper part of the main plate 1 on one side of the front shear resistant plate 3 and one side of the rear shear resistant plate 4 respectively, and lower reinforcing ribs 6 connecting the front shear resistant plate 3 and the rear shear resistant plate 4 are welded to the two sides of the lower part of the main plate 1; the reinforcement cage 7 is embedded in the anchor block concrete 8, and hoops the portion of the tie-link embedded in the anchor block concrete 8 and the adjacent concrete.
In this embodiment, the top of the main board 1 is reserved with a tether hole, the additional ear plates 2 are disposed at two sides of the main board 1 corresponding to the tether hole, and the middle of the main board 1 is provided with a through hole exposing the tether hole.
In this embodiment, an outwardly extending end shackle 10 is fixed to the attachment ear plate 2, the end shackle 10 being coupled to the tether hole.
In the present embodiment, the upper reinforcing ribs 5 are 4 pieces, and are vertically welded to both sides of the main plate 1, and are vertically welded to the corresponding front shear plate 3 and the corresponding rear shear plate 4, respectively.
In this embodiment, the number of the lower reinforcing ribs 6 is 4, and the lower reinforcing ribs are vertically and symmetrically welded to both sides of the main plate 1, and are respectively vertically welded to the front shear plate 3 and the rear shear plate 4.
In this embodiment, the main plate 1, the upper reinforcing floor 5, and the lower reinforcing floor 6 are each reserved with a vibrating hole 9 for pouring concrete.
The tail end shackle of the anchor chain is connected with a tether hole of the main board 1, and the main board 1 is welded with an additional lug plate 2 at the tether hole to reduce local close compression stress of the opening; the external force of the anchor chain is transmitted to a front shear resisting plate 3 and a rear shear resisting plate 4 through a main plate 1, and the front shear resisting plate and the rear shear resisting plate have certain widths so as to ensure that the local overstock stress of concrete and the anti-impact cutting checking calculation of an embedded part meet the requirements; an upper reinforcing rib plate 5 and a lower reinforcing rib plate 6 are arranged between the main plate 1 and the front and rear shear plates to ensure the synergy of all components of the chain link; arranging a reinforcement cage 7 to surround the part of the chain link embedded in the anchor block and the adjacent concrete, coordinating the combined action of the chain link and the concrete, and avoiding the phenomenon that the concrete is crushed due to overlarge local stress; the upper reinforcing rib plate 5, the lower reinforcing rib plate 6 and the main plate 1 are provided with vibrating holes 9 to ensure that the concrete is sufficiently vibrated; in the case of a seawater environment, the exposed part of the chain link is required to be provided with an anti-corrosion coating and reserved corrosion thickness as required to ensure the durability of the chain link within the design period.
Compared with the structural type of combining the tie ring with the anchorage, the invention is suitable for the use working condition with large stress; compared with the structural form of the pull lug steel plate consistent with the main stress direction, the invention can fully play the beneficial effect of the horizontal soil resistance of the backfilled stone outside the caisson type anchor block on the design of the anchor block, is more economic and has less influence on the navigation of the ship; compared with the structure type of the embedded bolt, the anchor block concrete is poured together with the chain ring, so that the bolt loosening and corrosion conditions do not need to be considered, and the maintenance is not needed in the later period.
Example 2: the concrete assembling steps of the steel plate type tie chain ring of the invention are as follows:
taking the rated displacement of a newly-built floating dock as 85000 tons as an example, adopting anchor mooring, wherein 20 anchors are adopted, and because the breakwater is not good in shield condition, the wind waves in the port are large, and the single anchor mooring stress is large and maximum: the horizontal force standard value is 6000kN, and the vertical force standard value is 600 kN. The method adopts a caisson type anchor block, steel plate type chain links and caisson concrete are poured together, the chain links are provided with openings so as to be conveniently connected with the tail ends of anchor chains in a shackle way, and the method comprises the following concrete construction steps:
s1 processing steel plate type chain ring
And processing the steel plate type chain tying ring according to the drawing of the chain tying ring structure, and connecting the end shackle of the anchor chain with the reserved hole of the chain tying ring.
S2, one-stage pouring of caisson type anchor block
And assembling the first-stage template by using a truck crane, building a steel reinforcement cage, installing a hoisting steel pipe, pouring concrete after confirming no error, and sufficiently vibrating. The embedded steel plates are arranged on the surface of the concrete poured in the first stage, so that the steel plate type chain connecting rings can be fixed by the welding fixture conveniently, and deviation of the chain connecting rings in the two-stage pouring process is avoided.
S3, fixing the tie member
And welding a mounting clamp on the embedded steel plate, and fixing the steel plate type chain link by using the clamp.
S4 two-stage pouring of caisson type anchor block
And assembling the second-stage template by using a truck crane, building a reinforcement cage, and pouring and fully vibrating concrete after confirming that no error exists.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A steel plate type chain link for an anchor block of a caisson type floating dock is characterized in that the lower part of the chain link is embedded in anchor block concrete (8) and comprises a main plate (1), an additional lug plate (2), a front shear resisting plate (3), a rear shear resisting plate (4), an upper reinforcing rib plate (5), a lower reinforcing rib plate (6) and a reinforcement cage (7); the novel combined type steel plate shearing machine is characterized in that the front shear resistant plate (3) and the rear shear resistant plate (4) are parallel to each other and are vertically welded to the front side and the rear side of the main plate (1) respectively, upper reinforcing rib plates (5) are welded to the two sides of the upper portion of the main plate (1) on one sides of the front shear resistant plate (3) and the rear shear resistant plate (4) respectively, and lower reinforcing rib plates (6) connected with the front shear resistant plate (3) and the rear shear resistant plate (4) are welded to the two sides of the lower portion of the main plate (1); the steel reinforcement cage (7) is embedded in anchor block concrete (8), and the part of the tie-rod chain ring embedded in the anchor block concrete (8) and the adjacent concrete are surrounded.
2. A steel plate type chain link for caisson-type floating dock anchor block according to claim 1, wherein: the top of the main board (1) is reserved with a tether hole, the additional ear plates (2) are arranged at the positions of the two sides of the main board (1) corresponding to the tether hole, and the middle part of the main board is provided with a through hole for exposing the tether hole.
3. A steel plate type chain link for caisson-type floating dock anchor block according to claim 1, wherein: an outwardly extending end shackle (10) is fixed to the additional ear plate (2), the end shackle (10) being coupled to the tether hole.
4. A steel plate type chain link for caisson-type floating dock anchor block according to claim 1, wherein: the upper reinforcing rib plates (5) are vertically welded on two sides of the main plate (1) and are respectively and vertically and fixedly connected with the corresponding front shear resisting plate (3) and the corresponding rear shear resisting plate (4).
5. A steel plate type chain link for caisson-type floating dock anchor block according to claim 1, wherein: the lower reinforcing rib plates (6) are vertically and symmetrically welded on two sides of the main plate (1) and are respectively and vertically welded with the front shear resistant plate (3) and the rear shear resistant plate (4).
6. A steel plate type chain link for caisson-type floating dock anchor block according to claim 1, wherein: and vibrating holes (9) for pouring concrete are reserved on the main plate (1), the upper reinforcing rib plate (5) and the lower reinforcing rib plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110309492.2A CN113186875A (en) | 2021-03-23 | 2021-03-23 | Steel plate type chain tying ring for caisson type floating dock anchor block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110309492.2A CN113186875A (en) | 2021-03-23 | 2021-03-23 | Steel plate type chain tying ring for caisson type floating dock anchor block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113186875A true CN113186875A (en) | 2021-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110309492.2A Pending CN113186875A (en) | 2021-03-23 | 2021-03-23 | Steel plate type chain tying ring for caisson type floating dock anchor block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113186875A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007045173A1 (en) * | 2005-10-19 | 2007-04-26 | Zhenxin Chen | An assembly type open caisson and a marine engineering structure |
| CN212052742U (en) * | 2019-12-16 | 2020-12-01 | 中铁大桥局第七工程有限公司 | Easy-to-manufacture pre-buried concrete ground anchor with large anchoring force |
| CN212388543U (en) * | 2020-05-13 | 2021-01-22 | 中国建筑第八工程局有限公司 | On-site fixing device for ultra-high cable wind rope |
-
2021
- 2021-03-23 CN CN202110309492.2A patent/CN113186875A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007045173A1 (en) * | 2005-10-19 | 2007-04-26 | Zhenxin Chen | An assembly type open caisson and a marine engineering structure |
| CN212052742U (en) * | 2019-12-16 | 2020-12-01 | 中铁大桥局第七工程有限公司 | Easy-to-manufacture pre-buried concrete ground anchor with large anchoring force |
| CN212388543U (en) * | 2020-05-13 | 2021-01-22 | 中国建筑第八工程局有限公司 | On-site fixing device for ultra-high cable wind rope |
Non-Patent Citations (1)
| Title |
|---|
| 张亚雄;: "一种新型浮船坞锚泊锚碇的设计和施工方法", 造船技术, no. 04, pages 2 - 3 * |
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