CN209760281U - Tower crane foundation structure for limited space - Google Patents
Tower crane foundation structure for limited space Download PDFInfo
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- CN209760281U CN209760281U CN201920167022.5U CN201920167022U CN209760281U CN 209760281 U CN209760281 U CN 209760281U CN 201920167022 U CN201920167022 U CN 201920167022U CN 209760281 U CN209760281 U CN 209760281U
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Abstract
The utility model discloses a tower crane foundation structure for restricted space relates to bridge construction technical field. The tower crane foundation structure comprises a bearing platform and a pier body arranged on the bearing platform, and further comprises a steel pipe column and two I-shaped steel beams, wherein one end of the steel pipe column is obliquely arranged on the bearing platform through a bearing platform embedded part, the other end of the steel pipe column is connected with the two I-shaped steel beams, one ends of the two I-shaped steel beams are connected with the pier body embedded part, and the two I-shaped steel beams are arranged on the same horizontal plane. The utility model discloses a lean out the steel-pipe column that sets up, set up two I-steel roof beam basic levels in the top of cushion cap, the I-steel roof beam, the steel-pipe column, cushion cap and pier shaft constitute an trapezoidal of invering, not only increased the structural strength on tower crane basis, still utilize the installation mesa of two horizontally I-steel roof beams formation tower cranes, directly fall on the cushion cap of confined space with the weight of tower crane, realize that the tower crane landing leg is located the cushion cap outside, greatly reduce the tower crane foundation structure's of confined space the construction degree of difficulty.
Description
Technical Field
The utility model relates to a bridge construction technical field, concretely relates to tower crane foundation structure for restricted space.
Background
the tower crane is the most common hoisting equipment in construction sites, and is used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction. In construction application of various bridges, the tower crane is usually installed on a ground foundation bearing platform, embedded parts of a tower crane foundation are directly embedded during construction of the bearing platform, the tower crane foundation embedded parts are fixed in an embedded mode through foundation screws, and then a plurality of standard sections and attachment devices are added. Because the tower crane is bulky and heavy, the foundation bearing platform is required to have enough space for the tower crane foundation to be arranged.
At present, the tower crane foundation can't directly be installed on the limited pier cushion cap in space, and the tower crane foundation needs to set up on aquatic steel-pipe pile, steel cofferdam or expand the basis, leads to the tower crane foundation when setting up, has following not enough:
1) Large-scale hoisting equipment is required to insert and pull the steel pipe piles in water beside the bearing platform, construction interference is large, a large number of steel pipe piles are required to be inserted and driven into soil, construction materials are large, and in addition, the steel pipe pile foundation is generally characterized by insufficient rigidity;
2) The tower crane foundation arranged on the cofferdam is only suitable for the double-wall steel cofferdam, the cofferdam is required to be fixedly connected with the bearing platform, a cofferdam system cannot be dismantled before the tower crane is dismantled, the installation of an auxiliary structure of the bearing platform is influenced, and the construction period is long;
3) The enlarged foundation is only suitable for the land bridge with better geological condition, the foundation is composed of a large amount of reinforcing steel bars and concrete, the material consumption is large, the space outside the bridge is occupied, the construction land is increased, and the construction cost is increased.
Disclosure of Invention
to the defect that exists among the prior art, the utility model provides a technical problem do: how to reduce the tower crane foundation structure's of confined space the construction degree of difficulty to improve the structural strength of tower crane foundation, reduce construction cost, shorten construction cycle.
For reaching above purpose, the utility model provides a pair of a tower crane foundation structure for restricted space, including cushion cap and the pier shaft of setting on the cushion cap, be equipped with a plurality of cushion cap built-in fittings on the cushion cap, be equipped with a plurality of pier shaft built-in fittings on the pier shaft, tower crane foundation structure still includes steel-pipe column and two girder steels, and steel-pipe column one end leans out through the cushion cap built-in fitting and installs on the cushion cap, and the steel-pipe column other end is connected with two girder steels, and two girder steels one end all are connected with pier shaft built-in fitting, set up two girder steels on same horizontal plane basically, all are provided with the tower crane base on two girder steels.
On the basis of the technical scheme, the steel pipe columns are two steel pipe columns which are basically parallel, one steel pipe column is connected with one steel beam, and the other steel pipe column is connected with the other steel beam.
On the basis of the technical scheme, a plurality of section steel distribution beams are arranged between the two steel beams.
On the basis of the technical scheme, the tower crane foundation structure further comprises an inclined strut located on the same inclined plane with the steel pipe column, one end of the inclined strut is connected with the bearing platform embedded part, and the other end of the inclined strut is welded with the steel pipe column.
On the basis of the technical scheme, the tower crane foundation structure further comprises a connecting rod, and two ends of the connecting rod are respectively welded with the diagonal brace column and the steel pipe column.
On the basis of the technical scheme, the steel beam is made of wide-flange I-shaped steel, the wide-flange I-shaped steel and the steel pipe column form a triangular structure, and two ends of the wide-flange I-shaped steel are respectively connected with the bearing platform embedded part and the pier body embedded part.
On the basis of the technical scheme, the tower crane base is welded with the steel beam after being installed on the steel beam through the first connecting screw rod.
On the basis of the technical scheme, the two steel beams are connected with the pier body embedded part through the second connecting screw rod.
On the basis of the technical scheme, the outer wall of the steel pipe column is provided with an annular reinforcing rib connected with the steel beam.
On the basis of the technical scheme, the included angle between the steel pipe column and the horizontal direction is 45-80 degrees; the distance between the center of the bottom of the steel pipe column and the pier body is 0.8-1.5 m; the minimum distance between the tower crane base and the pier body is 1.6 m.
Compared with the prior art, the utility model has the advantages of:
1) The steel pipe column is obliquely arranged outwards, the bottom of the steel pipe column is close to the pier body, the two I-shaped steel beams are basically horizontally arranged above the bearing platform, the I-shaped steel beams, the steel pipe column, the bearing platform and the pier body form an inverted trapezoid which is connected in sequence, the structural strength of the tower crane foundation is increased, the two horizontal I-shaped steel beams are utilized to form an installation table board of the tower crane, the weight of the tower crane is directly placed on the bearing platform in a limited space, the length of each I-shaped steel beam is larger than the maximum distance between the bottom of the pier body and the edge of the bearing platform, the space of the tower crane foundation is further expanded, tower crane supporting legs are positioned outside the bearing platform, and the construction difficulty of the tower crane foundation structure in the limited space is;
2) The inclined strut is additionally arranged beside the steel pipe column, the inclined strut and the steel pipe column are positioned in the same inclined plane, two ends of the inclined strut are respectively connected with the steel pipe column and the bearing platform embedded part, the horizontal rigidity of the tower crane foundation structure is increased, and the connecting rod is additionally arranged between the inclined strut and the steel pipe column to improve the structural rigidity of the inclined strut and the steel pipe column, so that the stability of the tower crane during construction is enhanced, and the service life of the tower crane foundation structure is prolonged;
3) The wide-flange I-shaped steel is adopted to manufacture the I-shaped steel beam, and the advantage that the flange width of the wide-flange I-shaped steel is larger than that of the common I-shaped steel with the same height as that of the web plate is utilized, so that the horizontal supporting surface of the upper part is enlarged, the tower crane supporting legs are conveniently positioned outside the bearing platform, meanwhile, the wide-flange I-shaped steel and the steel pipe column form a triangular structure, and the overall rigidity of the tower crane foundation is increased;
4) Firstly, connecting an I-shaped steel beam with a pier body embedded part by using a connecting screw rod, then installing a tower crane base on the I-shaped steel beam through the connecting screw rod, and finally welding the tower crane base and the I-shaped steel beam for reinforcement; the hinge mode that adopts connecting screw replaces traditional welded rigid connection, has not only overcome and can't detect the quality of welding in restricted space, and the easy fatigue fracture of welding seam in the use is installed more conveniently moreover, can in time adjust the clearance and the intensity of junction through torque wrench, has strengthened the connection performance between tower crane base and the I-shaped steel roof beam to make the tower crane foundation structure safer.
Drawings
Fig. 1 is a schematic side view of the present invention.
Fig. 2 is a schematic view of the structure of the present invention.
in the figure: 1-bearing platform, 2-pier body, 3-bearing platform embedded part, 4-pier body embedded part, 5-second connecting screw rod, 6-steel pipe column, 7-steel beam, 8-tower crane base, 9-first connecting screw rod, 10-tower crane foundation section, 11-diagonal brace, 12-connecting rod and 13-annular reinforcing rib.
Detailed Description
The embodiment of the utility model provides a tower crane base is prior art, and it is right to combine the figure below the embodiment of the utility model makes further detailed description.
Example 1: the utility model provides a tower crane foundation structure for confined space, refers to as shown in FIG. 1, including cushion cap 1 and the pier shaft 2 of setting on cushion cap 1, be equipped with a plurality of cushion cap built-in fittings 3 on the cushion cap 1, be equipped with a plurality of pier shaft built-in fittings 4 on the pier shaft 2, tower crane foundation structure still includes steel-pipe column 6 and two girder steels 7, and 6 one end of steel-pipe column lean out for pier shaft 2 through cushion cap built-in fittings 3 and install on cushion cap 1, and the steel-pipe column 6 other end is connected with two girder steels 7, and 7 one ends of two girder steels all are connected with pier shaft built-in fittings 4, set up two girder steels 7 on same horizontal plane basically, and two horizontally girder steels 7 constitute a horizontal mesa that is used for installing the tower crane, all are provided with tower crane base 8 on two girder steels 7, and tower crane base 8 is used for installing tower.
The embodiment of the utility model provides an in, through leaning out the steel-pipe column 6 that sets up, 6 bottoms of steel-pipe column are close to pier shaft 2, set up two 7 basic levels of girder steel in the top of cushion cap 1, girder steel 7, steel-pipe column 6, the trapezoidal of inversion is constituted to cushion cap 1 and pier shaft 2, not only increased the structural strength on tower crane basis, still make two horizontally girder steel 7 form a horizontal mesa that is used for installing the tower crane, directly fall on the cushion cap 1 of confined space with the weight of tower crane, and girder steel 7's length is greater than 2 bottoms of pier shaft apart from the maximum distance at 1 edge of cushion cap, and then enlarged the space on tower crane basis, realize that the tower crane landing leg is located the 1 outside of cushion cap, greatly reduce the construction degree of difficulty of confined space's basic structure.
Example 2: in addition to example 1, referring to fig. 2, the steel pipe column 6 is two substantially parallel steel pipe columns 6, one steel pipe column 6 is connected with one steel beam 7, and the other steel pipe column 6 is connected with the other steel beam 7.
The embodiment of the utility model provides an in, adopt two steel-pipe columns 6 to provide the supporting role for girder steel 7 that the level set up jointly, not only can reduce the diameter of steel-pipe column 6, be convenient for install and accelerate construction speed, be favorable to promoting tower crane foundation structure's stability moreover.
Example 3: on the basis of example 1, referring to fig. 2, a plurality of section steel distribution beams are arranged between the two steel beams 7. Shaped steel is a cross sectional area and distributes optimization more, the high-efficient section bar of economic section more reasonable than the weight ratio, utilizes shaped steel distributing beam to connect two girder steels 7, not only the construction is convenient, construction material is few and structure light in weight, has bending resistance strong moreover on each direction, promotes tower crane mounting platform's whole rigidity, reduces external interference.
Example 4: on the basis of the embodiment 1, referring to fig. 2, the tower crane foundation structure further includes a diagonal brace 11 located on the same inclined plane as the steel pipe column 6, one end of the diagonal brace 11 is connected with the bearing platform embedded part 3, and the other end of the diagonal brace 11 is welded with the steel pipe column 6.
The embodiment of the utility model provides an in, through add bracing column 11 on 6 next doors of steel-pipe column to bracing column 11 is located same clinostatism with steel-pipe column 6, and 11 both ends of bracing column are connected with steel-pipe column 6 and cushion cap built-in fitting 3 respectively, have increased tower crane foundation structure's level to rigidity, thereby have strengthened the stability of tower crane during construction.
Example 5: on the basis of embodiment 4, referring to fig. 2, the tower crane foundation structure further includes a connecting rod 12, and two ends of the connecting rod 12 are respectively welded to the bracing column 11 and the steel pipe column 6.
The embodiment of the utility model provides an in, through add connecting rod 12 between bracing column 11 and steel-pipe column 6, promote the structural rigidity of bracing column 11 and steel-pipe column 6, prolong tower crane foundation structure's life.
example 6: on the basis of the embodiment 1, referring to fig. 2, the steel beam 7 is made of a wide-flange i-steel, the wide-flange i-steel and the steel pipe column 6 form a triangular structure, and two ends of the wide-flange i-steel are respectively connected with the bearing platform embedded part 3 and the pier shaft embedded part 4.
The embodiment of the utility model provides an in, girder steel 7 adopts wide flange I-steel to make, utilizes the big advantage of the ordinary I-steel that the flange width is the same high than the web in the wide flange I-steel to constitute the triangle-shaped structure with wide flange I-steel and steel-pipe column 6, both enlarged the horizontal holding surface on upper portion, the tower crane landing leg of being convenient for is located the 1 outside of cushion cap, has increased the bulk rigidity on tower crane basis again.
Example 7: on the basis of embodiment 1, as shown in fig. 2, after the tower crane base 8 is installed on the steel beam 7 through the first connecting screw rod 9, the tower crane base 8 is welded with the steel beam 7.
The embodiment of the utility model provides an in, earlier through first connecting screw 9, install tower crane base 8 on girder steel 7, the tower crane base 8's of being convenient for installation location and fixed, consolidate tower crane base 8 and girder steel 7 welding again, strengthened the connection performance between tower crane base 8 and the girder steel 7 to make tower crane foundation structure safer.
Example 8: on the basis of the embodiment 1, referring to fig. 1, the two steel beams 7 are connected with the pier shaft embedded part 4 through the second connecting screw rods 5. The embodiment of the utility model provides an in, adopt second connecting screw 5 to be connected girder steel 7 and pier shaft built-in fitting 4, the articulated mode that adopts connecting screw replaces traditional welded rigid connection, the connection performance between girder steel 7 and the pier shaft 2 has been strengthened, not only in the tower crane use, accessible torque wrench in time adjusts clearance and intensity between tower crane foundation structure and the pier shaft 2, and it is more convenient to install through connecting screw moreover, it can't detect the quality of butt welding in the confined space to have overcome, the welding seam is tired easily in the use, thereby guarantee to hang foundation structure's intensity and safe operation.
Example 9: in addition to the embodiment 1, referring to fig. 1, the outer wall of the steel pipe column 6 is provided with an annular reinforcing rib 13 connected with the steel beam 7.
The embodiment of the utility model provides an in, be provided with a plurality of layers and the parallel annular strengthening rib 13 of 6 axes of steel-pipe column at the outer wall surface at 6 tops of steel-pipe column, annular strengthening rib 13 can show the intensity that improves tower crane foundation structure, increases the effect of rigidity, reduces the tower crane in the use, and the probability of the fracture of welding seam, deformation between girder steel 7 and the steel-pipe column 6 improves the security of tower crane operation, extension tower crane foundation structure's life.
Example 10: on the basis of the embodiment 1, referring to fig. 1 and 2, the included angle between the steel pipe column 6 and the horizontal direction is 45-60 degrees; the distance between the center of the bottom of the steel pipe column 6 and the pier body 2 is 0.6-1.2 m; the minimum distance between the tower crane base 8 and the pier body 2 is 2.3 m.
In the embodiment of the present invention, the included angle between the steel pipe column 6 and the horizontal direction is 45-80 °, preferably 77 °; the distance between the center of the bottom of the steel pipe column 6 and the pier shaft 2 is 0.8-1.5m, preferably, the distance is 1.045 m; the minimum distance between the tower crane base 8 and the pier body 2 is 1.6 m; the space of the tower crane foundation can be enlarged as much as possible, the tower crane supporting legs are positioned outside the bearing platform 1, and the strength and the safe operation of the suspended foundation structure can be guaranteed.
The present invention is not limited to the above preferred embodiments, and any person can obtain other products in various forms without departing from the scope of the present invention, but any change in shape or structure is within the scope of protection. Those not described in detail in this specification are within the skill of the art.
Claims (10)
1. The utility model provides a tower crane foundation structure for confined space, includes cushion cap (1) and pier shaft (2) of setting on cushion cap (1), is equipped with a plurality of cushion cap built-in fittings (3) on cushion cap (1), is equipped with a plurality of pier shaft built-in fittings (4) on pier shaft (2), its characterized in that: tower crane foundation structure still includes steel-pipe column (6) and two girder steels (7), and steel-pipe column (6) one end is passed through cushion cap built-in fitting (3) and is leaned out and install on cushion cap (1), and the steel-pipe column (6) other end is connected with two girder steels (7), and two girder steels (7) one end all are connected with pier shaft built-in fitting (4), set up two girder steels (7) on same horizontal plane basically, all are provided with tower crane base (8) on two girder steels (7).
2. The tower crane infrastructure for confined spaces of claim 1, wherein: the steel pipe columns (6) are two steel pipe columns (6) which are basically parallel, one steel pipe column (6) is connected with one steel beam (7), and the other steel pipe column (6) is connected with the other steel beam (7).
3. The tower crane infrastructure for confined spaces of claim 1, wherein: a plurality of section steel distribution beams are arranged between the two steel beams (7).
4. The tower crane infrastructure for confined spaces of claim 1, wherein: the tower crane foundation structure further comprises an inclined strut (11) located on the same inclined plane with the steel pipe column (6), one end of the inclined strut (11) is connected with the bearing platform embedded part (3), and the other end of the inclined strut (11) is welded with the steel pipe column (6).
5. the tower crane infrastructure for confined spaces of claim 4, wherein: the tower crane foundation structure further comprises a connecting rod (12), and two ends of the connecting rod (12) are respectively welded with the inclined strut column (11) and the steel pipe column (6).
6. The tower crane infrastructure for confined spaces of claim 1, wherein: the steel beam (7) is made of wide-flange I-shaped steel, the wide-flange I-shaped steel and the steel pipe column (6) form a triangular structure, and two ends of the wide-flange I-shaped steel are respectively connected with the bearing platform embedded part (3) and the pier body embedded part (4).
7. The tower crane infrastructure for confined spaces of claim 1, wherein: tower crane base (8) are installed back on girder steel (7) through first connecting screw (9), with tower crane base (8) and girder steel (7) welding.
8. The tower crane infrastructure for confined spaces of claim 1, wherein: and the two steel beams (7) are connected with the pier body embedded part (4) through second connecting screw rods (5).
9. The tower crane infrastructure for confined spaces of claim 1, wherein: and the outer wall of the steel pipe column (6) is provided with an annular reinforcing rib (13) connected with the steel beam (7).
10. The tower crane infrastructure for confined spaces of claim 1, wherein: the included angle between the steel pipe column (6) and the horizontal direction is 45-80 degrees; the distance between the center of the bottom of the steel pipe column (6) and the pier body (2) is 0.8-1.5 m; the minimum distance between the tower crane base (8) and the pier body (2) is 1.6 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920167022.5U CN209760281U (en) | 2019-01-29 | 2019-01-29 | Tower crane foundation structure for limited space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920167022.5U CN209760281U (en) | 2019-01-29 | 2019-01-29 | Tower crane foundation structure for limited space |
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| Publication Number | Publication Date |
|---|---|
| CN209760281U true CN209760281U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920167022.5U Active CN209760281U (en) | 2019-01-29 | 2019-01-29 | Tower crane foundation structure for limited space |
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| CN (1) | CN209760281U (en) |
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- 2019-01-29 CN CN201920167022.5U patent/CN209760281U/en active Active
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