CN211285682U - Deepwater cantilever type tower crane foundation structure - Google Patents
Deepwater cantilever type tower crane foundation structure Download PDFInfo
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- CN211285682U CN211285682U CN201921989977.5U CN201921989977U CN211285682U CN 211285682 U CN211285682 U CN 211285682U CN 201921989977 U CN201921989977 U CN 201921989977U CN 211285682 U CN211285682 U CN 211285682U
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Abstract
The utility model provides a deep water cantilever type tower crane foundation structure, including the pre-buried steel corbel horizon bar in the cushion cap of two at least one end, steel corbel down tube upper end is connected with steel corbel horizon bar, and the lower extreme is connected with pre-buried first pre-buried steel sheet in the cushion cap, and the one end upside that the cushion cap was kept away from to steel corbel horizon bar is equipped with tower crane foundation festival, and tower crane foundation festival is used for saving with the tower crane standard and is connected, and steel corbel horizon bar fills all around and cushion cap integrative reinforced concrete. The structure can solve the corrosion problem that the bearing platform is not provided with a position to build a tower crane foundation and the tower crane foundation is positioned at a high water level.
Description
Technical Field
The utility model belongs to the technical field of the construction, in particular to deep water cantilever type tower crane foundation structure.
Background
With the continuous expansion of the construction field of China in recent years, the construction of deep-water bridges is more and more common, and the overwater hoisting equipment is also different and mainly comprises: the construction method comprises the following steps of large-scale floating crane, tower crane, cable crane and other equipment, wherein the most widely used equipment in bridge construction is tower crane construction operation. The adoption of the floating crane and the cable crane is limited by the conditions of a construction site and the structure of the bridge, and the economy and the practicability of the floating crane are not as wide as those of a tower crane. The construction of the bridge on water adopts tower crane hoisting operation, and the foundation mode mainly comprises the following steps:
(1) the tower crane foundation is directly placed on a riverbed;
(2) the bridge bearing platform is placed on the top surface of the bridge bearing platform;
(3) and placing the pile on an excessive pile foundation poured outside the bridge foundation or placing the pile on the top end of the steel casing which is inserted and beaten again.
(4) Directly embedding profile steel on the side surface of the bearing platform, and welding a steel bracket;
there are limitations to either approach. The tower crane foundation is laid on the riverbed and is not suitable for the bridge of the deepwater high pile cap; the tower crane is placed on the top surface of the bridge bearing platform and limited by the structural form of the bridge, and a tower crane is installed in some bridges without redundant positions; the construction cost of adopting the re-pouring pile foundation as the tower crane foundation is too high and uneconomical; the adoption adopts in that the cushion cap side adopts shaped steel directly pre-buried, and during the welding steel corbel had future bridge construction, the basis was flooded in the rising of water level, and long-term soaking can take place steel corbel corrosion phenomenon, or takes place the ship collision tower crane foundation condition of passing, all has the potential safety hazard. The tower crane foundation is formed by inserting and beating the steel protective cylinder again, so that the method is uneconomical, the stability cannot be guaranteed, and the safety risk exists.
Disclosure of Invention
The utility model aims to solve the technical problem that a deep water cantilever type tower crane foundation structure is provided, can solve the cushion cap and do not have the position to build the corrosion problem that tower crane basis and tower crane basis are located the high water level.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a deep water cantilever type tower crane foundation structure, includes the pre-buried steel bracket horizon bar in the cushion cap of two at least one end, and steel bracket down tube upper end is connected with the steel bracket horizon bar, and the lower extreme is connected with pre-buried first pre-buried steel sheet in the cushion cap, and the one end upside that the cushion cap was kept away from to the steel bracket horizon bar is equipped with tower crane foundation festival, and tower crane foundation festival is used for being connected with tower crane standard festival, and steel bracket horizon bar is filled all around and is held integrative reinforced concrete of platform.
In the preferred scheme, still including pre-buried additional strengthening in the cushion cap, additional strengthening includes the horizontal pole of being connected with first pre-buried steel sheet and the montant of connecting horizontal pole and steel corbel horizon bar.
In the preferred scheme, the steel plate pile foundation structure further comprises a second embedded steel plate embedded in the reinforced concrete and a third embedded steel plate embedded in the bearing platform, and two ends of the horizontal diagonal brace are connected with the second embedded steel plate and the third embedded steel plate respectively.
In the preferred scheme, the bottom of the tower crane foundation section is provided with a stress distribution plate.
In a preferable scheme, a connecting system is arranged between the horizontal rods of the steel corbels.
The utility model provides a pair of deep water cantilever type tower crane foundation structure has following advantage:
(1) the construction is convenient, and the construction is synchronous with the bridge bearing platform, so that the construction progress is accelerated;
(2) the construction cost is low, and the pile foundation constructed from the riverbed does not need to be used as the tower crane foundation independently, so that the problem that the tower crane foundation is installed at a position where no extra position exists on a bearing platform is solved;
(3) safe and reliable has eliminated the hidden danger that the tower crane foundation soaked in the aquatic for a long time and produced shaped steel corruption when high water level in later stage, has effectively reduced the collision injury of past ship to the tower crane foundation, has strengthened the intensity, rigidity, the stability of tower crane foundation.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a plan view of the present invention;
FIG. 3 is a side view of the present invention;
in the figure: bearing platform 1, steel bracket horizontal pole 2, steel bracket down tube 3, first pre-buried steel sheet 4, tower crane foundation festival 5, tower crane standard festival 6, reinforced concrete 7, horizontal pole 8, montant 9, the pre-buried steel sheet of second 10, the pre-buried steel sheet of third 11, horizontal bracing 12, stress distribution board 13, connection 14.
Detailed Description
The deep-water cantilever type tower crane foundation structure comprises two steel bracket horizontal rods 2 with one ends embedded in a bearing platform 1, a steel bracket inclined rod 3 with the upper end welded with the steel bracket horizontal rod 2 and the lower end connected with a first embedded steel plate 4 embedded in the bearing platform 1, a tower crane foundation section 5 arranged on the upper side of one end of the steel bracket horizontal rod 2 far away from the bearing platform 1, a tower crane standard section 5 connected with the tower crane standard section 6, reinforced concrete 7 integrated with the bearing platform 1 and filled around the steel bracket horizontal rod 2, wherein the reinforced concrete 7 comprises a steel bar framework and concrete poured, pouring is carried out synchronously with the bearing platform 1.
The hidden danger that the tower crane foundation is soaked in water for a long time to generate section steel corrosion in the later period of high water level is solved by adopting a reinforced concrete structure; meanwhile, due to the adoption of a cantilever structure, the problem that the tower crane foundation is not installed at a redundant position on the bearing platform is solved. The standard section of the tower crane placed in water needs to be coated with anticorrosion measures.
Preferably, still including pre-buried additional strengthening in bearing 1, additional strengthening includes the horizontal pole 8 of being connected with first pre-buried steel sheet 4 and connects horizontal pole 8 and steel corbel horizontal pole 2's montant 9. Through setting up strengthening mechanism, improve joint strength and stability of steel corbel and cushion cap 1.
Preferably, the steel plate structure further comprises a second embedded steel plate 10 embedded in the reinforced concrete 7 and a third embedded steel plate 11 embedded in the bearing platform 1, the second embedded steel plate 10 and the third embedded steel plate 11 are consistent in height, and two ends of the horizontal diagonal brace 12 are connected with the second embedded steel plate 10 and the third embedded steel plate 11 respectively. The stability of the whole structure is improved by providing the horizontal diagonal braces 12.
And a stress distribution plate 13 is arranged at the bottom of the tower crane foundation section 5. In the present embodiment, the thickness of the stress distribution plate 13 is 20 mm. Through setting up stress distribution plate 13, can make the tower crane disperse the stress of steel corbel, prevent stress concentration.
And a connecting system 14 is arranged between the steel bracket horizontal rods 2. The connecting system 14 is 32a I-shaped steel, is welded with the horizontal rod 2 of the steel bracket, and can increase the overall stability of the bracket by arranging the connecting system 14.
The construction steps of the deepwater cantilever type tower crane foundation structure disclosed by the embodiment are as follows:
a. installing and constructing bearing platform steel bars;
b. manufacturing a steel bracket rod piece and a reinforcing structure;
c. manufacturing and installing the steel corbel embedded steel plate on site;
d. installing a steel bracket, welding a horizontal rod 2 of the steel bracket on the upper side of a reinforcing steel bar of a bearing platform, connecting an inclined rod 3 of the steel bracket with a first embedded steel plate 4, and firmly welding a reinforcing structure, wherein if the bearing platform is poured in different bins, only the horizontal rod 2 of the steel bracket is installed for the first time, and the inclined rod 3 of the steel bracket is installed after concrete is poured;
e. installing a tower crane foundation section 5, wherein the tower crane foundation section 5 is provided with a stress distribution plate 13 and is firmly welded with the top surface of the steel bracket horizontal rod 2;
f. erecting a support mounting bottom template, binding tower crane foundation steel bars, lengthening main bars of a tower crane foundation by using bearing platform main bars, and not binding the main bars independently;
g. installing a second embedded steel plate 10 and a third embedded steel plate 11;
h. and (4) installing a side template of the tower crane foundation, and pouring the side template and the bearing platform synchronously, wherein the grade of concrete is consistent with that of the bearing platform.
J. And (4) maintaining after pouring, removing the template after the strength meets the requirement, installing the horizontal inclined strut 12, and installing the tower crane after the strength reaches 80% of the design strength of the bearing platform.
Claims (5)
1. The utility model provides a deep water cantilever type tower crane foundation structure which characterized in that: including pre-buried steel bracket horizon bar (2) in cushion cap (1) of two at least one end, steel bracket down tube (3) upper end is connected with steel bracket horizon bar (2), the lower extreme is connected with pre-buried first pre-buried steel sheet (4) in cushion cap (1), the one end upside that cushion cap (1) was kept away from in steel bracket horizon bar (2) is equipped with tower crane foundation festival (5), tower crane foundation festival (5) are used for being connected with tower crane standard festival (6), steel bracket horizon bar (2) are filled all around and are held platform (1) integrative reinforced concrete (7).
2. The deep water cantilever type tower crane foundation structure of claim 1, wherein: still including pre-buried additional strengthening in cushion cap (1), additional strengthening includes horizontal pole (8) and montant (9) of connecting horizontal pole (8) and steel corbel horizon bar (2) of being connected with first pre-buried steel sheet (4).
3. The deep water cantilever type tower crane foundation structure of claim 1, wherein: the horizontal inclined strut is characterized by further comprising a second embedded steel plate (10) embedded in the reinforced concrete (7) and a third embedded steel plate (11) embedded in the bearing platform (1), and two ends of the horizontal inclined strut (12) are respectively connected with the second embedded steel plate (10) and the third embedded steel plate (11).
4. The deep water cantilever type tower crane foundation structure of claim 1, wherein: and a stress distribution plate (13) is arranged at the bottom of the tower crane foundation section (5).
5. The deep water cantilever type tower crane foundation structure of claim 1, wherein: and a connecting system (14) is arranged between the steel corbel horizontal rods (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921989977.5U CN211285682U (en) | 2019-11-18 | 2019-11-18 | Deepwater cantilever type tower crane foundation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921989977.5U CN211285682U (en) | 2019-11-18 | 2019-11-18 | Deepwater cantilever type tower crane foundation structure |
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| CN211285682U true CN211285682U (en) | 2020-08-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115262613A (en) * | 2022-08-15 | 2022-11-01 | 江苏海洋大学 | No. 0 block floor bracket cantilever type vibration damping concrete foundation attached to bearing platform |
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2019
- 2019-11-18 CN CN201921989977.5U patent/CN211285682U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115262613A (en) * | 2022-08-15 | 2022-11-01 | 江苏海洋大学 | No. 0 block floor bracket cantilever type vibration damping concrete foundation attached to bearing platform |
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