Fabricated tower crane foundation suitable for various types of tower cranes

Abstract

The utility model discloses an assembly type tower crane foundation suitable for various types of tower cranes, which comprises distribution beams, four steel pipe piles are vertically arranged in a rectangular shape, two groups of distribution beams are fixed together in a crossed manner, and two ends of each group of distribution beams are mounted in two diagonal steel pipe piles through connecting pieces. The side faces of the distribution beams on the two adjacent sides are fixed through a flat connecting beam. The base plates are installed on the distribution beams through finish rolling threaded bolts, and the welding supporting feet are fixed among the four base plates. A conventional cross-shaped distributive girder foundation is adopted, the flat connecting beams are added on the distributive girder foundation, so that the overall strength is improved, meanwhile, the pile caps are arranged at the joints of the distributive girders and the steel pipe piles, and therefore the vertical height of the distributive girders can be finely adjusted through welding of the pile caps. And meanwhile, the base can be welded after being positioned and fixed through the finish-rolled threaded bolts, so that the levelness of the welding supporting legs and the distribution beam can be conveniently adjusted. The utility model also has the advantages of easy splicing, high rigidity, and good overall stability and overturning resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled tower crane foundations of tower cranes, in particular to an assembled tower crane foundation suitable for various types of tower cranes. Background Art

[0002] In construction, tower cranes are widely used to solve the problem of vertical transportation during construction. In order to ensure the safety of tower cranes during use, tower cranes are usually fixed on reinforced concrete caps. The existing steel structure tower crane foundation is usually composed of a cross steel beam or a single-layer, combined multiple H-shaped steel. However, the cross arm joints of the former cross steel beam foundation are more, the splicing is more troublesome, and the rigidity is also reduced. The latter H-shaped steel itself has poor torsion resistance and the overall stability and anti-overturning resistance of the upper steel beam, and both do not consider the construction deviation during the steel column construction process, resulting in verticality errors. Summary of the invention

[0003] The purpose of the utility model is to provide an assembled tower crane foundation suitable for various types of tower cranes, which can adjust the vertical height and horizontality of the distribution beam, ensure zero verticality error, and have good overall stability and anti-overturning performance, so as to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model discloses an assembled tower crane foundation suitable for various types of tower cranes, characterized in that: it comprises a distribution beam, four steel pipe piles are arranged vertically in a rectangular shape, two groups of distribution beams are cross-fixed together, and the sides of the distribution beams on the adjacent two sides are fixed by a flat beam, and the four flat beams form a rectangle; two bases on the same vertical straight line are symmetrically arranged above and below the left and right sides of each group of distribution beams, and the upper and lower ends of the vertically placed precision-rolled threaded bolts respectively pass through the upper and lower bases on one side of the distribution beam, and the upper and lower ends of the precision-rolled threaded bolts are fixed to the bases by nuts and pads; the vertically placed welded legs are fixed in the middle of the bases.

[0006] The base is composed of a bottom plate and a vertical plate. Eight identical vertical plates are spaced apart in pairs and evenly and vertically fixed on a horizontally placed square bottom plate. The inward ends of the eight vertical plates together form a square support foot groove. The bottom ends of the vertically placed welded supports are fixed in the support foot groove and between the four pads on the base. Two through holes are provided on the upper and lower sides of the bottom plate of the base for the precision-rolled threaded bolts to pass through.

[0007] The four bases are all arranged in a rectangle formed by four parallel beams.

[0008] The square of the foot slot is staggered 90 degrees from the square of the base.

[0009] The two through holes on the upper side and the two through holes on the lower side of the bottom plate form a rectangle, and the two through holes on the left side and the two through holes on the right side are arranged on both sides of the vertical upright plate.

[0010] An upwardly opening mounting groove is provided in the middle of the upper end of each steel pipe pile, and a pile cap is installed on the pipe wall below the mounting groove. The end of the distribution beam is stuck inside the mounting groove and falls on two pile caps under the mounting groove. After adjusting the position of the pile cap, the end of the distribution beam is welded and fixed to the pile cap.

[0011] A T-shaped arc steel plate is provided on each of the front and back sides of the steel pipe pile. The T-shaped arc steel plate is wrapped around the outside of the steel pipe pile and falls on the distribution beam to close the gap between the distribution beam and the steel pipe pile, and then the contact parts of the T-shaped arc steel plate, the steel pipe pile and the distribution beam are welded and fixed; a semi-arc steel plate is provided between the top of the T-shaped arc steel plate and the top of the distribution beam, and the semi-arc steel plate is welded and fixed to the contact positions of the distribution beam and the T-shaped arc steel plate respectively; at this time, there is no large gap between the distribution beam and the steel pipe pile, and the distribution beam and the steel pipe pile are integrally connected and closed by the T-shaped arc steel plate and the semi-arc steel plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] On the basis of the conventional cross-shaped distribution beam, a welded flat beam is added to increase the overall strength. At the same time, a pile cap is set at the connection between the distribution beam and the steel pipe pile. In this way, the vertical height of the distribution beam can be fine-tuned by welding the pile cap. At the same time, the base can be positioned and fixed by precision-rolled threaded bolts before welding, which is convenient for adjusting the horizontality of the welding legs and the distribution beam.

[0014] The utility model can adjust the vertical height of the distribution beam, and can adjust the horizontality of the distribution beam, reduce construction deviation, and thus ensure zero verticality error. The utility model also has the advantages of easy splicing, high rigidity, good overall stability and good anti-overturning performance.

[0015] The utility model can be applicable to tower cranes with standard sections of different sizes such as 1.6 meters, 1.8 meters, 2 meters, 2.2 meters, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic elevation diagram of the utility model;

[0017] Figure 2 It is a top view schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the distribution beam of the utility model installed on the steel pipe pile;

[0019] Figure 4 for Figure 3 Schematic diagram of the plane;

[0020] Figure 5 This is a front view schematic diagram of a steel pipe pile of the utility model;

[0021] Figure 6 It is a side view schematic diagram of the steel pipe pile of the utility model;

[0022] Figure 7 It is a top view schematic diagram of the base of the utility model;

[0023] Figure 8 It is a front view schematic diagram of the base of the utility model.

[0024] Fig. 9 It is a schematic diagram of the T-shaped arc steel plate structure of the utility model;

[0025] Fig.10 This is a planar structural diagram of a semi-arc steel plate of the utility model;

[0026] In the figure: 1. T-shaped arc steel plate; 2. precision-rolled threaded bolt; 3. distribution beam; 4. steel pipe pile; 41. pile cap; 42. installation groove; 5. welded support foot; 6. pad; 7. base; 8. parallel beam; 9. support foot groove; 10. through hole; 11. semi-arc steel plate. DETAILED DESCRIPTION

[0027] See also Figure 1 —9. An assembled tower crane foundation suitable for various types of tower cranes, comprising a distribution beam 3, four steel pipe piles 4 arranged vertically in a rectangular shape, two groups of distribution beams 3 cross-fixed together, and the sides of the distribution beams 3 on the adjacent two sides are fixed by a flat beam 8, and the four flat beams 8 form a rectangle; two bases 7 on the same vertical straight line are symmetrically arranged above and below the left and right sides of each group of distribution beams 3, and the upper and lower ends of the vertically placed fine-rolled threaded bolts 2 respectively pass through the upper and lower bases 7 on one side of the distribution beam 3, and the upper and lower ends of the fine-rolled threaded bolts 2 are fixed to the base 7 by nuts 11 and pads 6; the vertically placed welded legs 5 are fixed in the middle of the base 7.

[0028] The base 7 is composed of a bottom plate 71 and a vertical plate 72. Eight identical vertical plates 72 are evenly and vertically fixed on the horizontally placed square bottom plate 71 at a 45-degree interval. The inward ends of the eight vertical plates 72 together form a square support foot groove 9. The bottom end of the welded support foot 5 is fixed in the support foot groove 9 and between the four pads 6 on the base 7. Two through holes 10 for passing the precision-rolled threaded bolts 2 are respectively provided on the upper and lower sides of the bottom plate 71 of the base 7.

[0029] The four bases 7 are all arranged in a rectangle formed by four parallel beams 8 .

[0030] The square shape of the foot groove 9 is staggered by 90 degrees with the square shape of the base 7 .

[0031] The two through holes 10 on the upper side and the two through holes 10 on the lower side of the bottom plate 71 form a rectangle, and the two through holes 10 on the left side and the two through holes 10 on the right side are arranged on both sides of the vertical stand plate 72 .

[0032] An upwardly opening mounting groove 42 is provided in the middle of the upper end of each steel pipe pile 4, and a pile cap 41 is installed on the pipe wall below the mounting groove 42. The end of the distribution beam 3 is clamped inside the mounting groove 42 and falls on the two pile caps 41 under the mounting groove 42. After adjusting the position of the pile cap 41, the end of the distribution beam 3 is welded and fixed to the pile cap 41.

[0033] A T-shaped arc steel plate 1 is provided on the front and back sides of the steel pipe pile 4, respectively. The T-shaped arc steel plate 1 is wrapped around the outside of the steel pipe pile 4 and falls on the distribution beam 3, closing the gap between the distribution beam 3 and the steel pipe pile 4, and then the contact parts of the T-shaped arc steel plate 1, the steel pipe pile 4 and the distribution beam 3 are fully welded and fixed; a semi-arc steel plate 11 is provided between the top of the T-shaped arc steel plate 1 and the top of the distribution beam 3, and the semi-arc steel plate 11 is fully welded and fixed at the contact positions with the distribution beam 3 and the T-shaped arc steel plate 1 respectively; there is no gap between the distribution beam 3 and the steel pipe pile 4, and the distribution beam 3 and the steel pipe pile 4 are integrally connected and closed by the T-shaped arc steel plate 1 and the semi-arc steel plate 11.

[0034] The T-shaped arc steel plate 1, the semi-arc steel plate 11, the distribution beam 3, the pile cap 41 and the steel pipe pile 4 are welded by continuous fillet welds, and the two groups of distribution beams 3 are welded into a whole by groove welding; the bottom plate of the base 7 and the distribution beam 3 are circumferentially welded.

[0035] The tower crane foundation can be suitable for tower cranes with standard sections of different sizes such as 1.6 meters, 1.8 meters, 2 meters, 2.2 meters, etc.

[0036] The tower crane foundation construction is as follows:

[0037] First, position and drive the steel pipe pile 4 to ensure the verticality and depth of the steel pipe pile 4;

[0038] Second: weld the pile cap 41 in sequence and install the distribution beam 3; then install the T-shaped arc steel plate 1 and the semi-arc steel plate 11 to close and connect the distribution beam 3 and the steel pipe pile 4 into a whole. All welding adopts continuous fillet welding, and the weld leg size Hf=10mm;

[0039] Third: weld the base 7 and the distribution beam 3 into a whole;

[0040] Fourth: Do a good job of grounding; the grounding device is made of flat steel material; its minimum specification size is: 4mm×40mm, the connection between the grounding wire and the grounding wire should also be welded, when lap welding is used, the lap length of the flat steel should be twice its width, and the connection between the grounding wire and the grounding equipment can be welded; the grounding resistance is ≤4Ω, and the repeated grounding resistance value is ≤10Ω;

[0041] Fifth: adjust the horizontality of the welding leg 5 and the distribution beam 3. Start welding after the error is less than 1 / 1000. After welding is completed, weld the bottom end of the embedded section to the welding leg 5 and fix them together;

[0042] Sixth: Install the standard section on the embedded section, and measure the horizontality of the connecting surface between the embedded section and the standard section again. Only after confirmation that the basic conditions for installing the tower crane are met can the tower crane be installed.

Claims

1. An assembled tower crane foundation suitable for various types of tower cranes, characterized in that: It includes a distribution beam, four steel pipe piles are arranged vertically in a rectangular shape, two groups of distribution beams are cross-fixed together, and the sides of the distribution beams on the adjacent two sides are fixed by a flat beam, and the four flat beams form a rectangle; two bases on the same vertical straight line are symmetrically arranged above and below the left and right sides of each group of distribution beams, and the upper and lower ends of the vertically placed precision-rolled threaded bolts respectively pass through the upper and lower bases on one side of the distribution beam, and the upper and lower ends of the precision-rolled threaded bolts are fixed to the bases by nuts and pads; the vertically placed welded legs are fixed in the middle of the bases.

2. The assembled tower crane foundation applicable to various types of tower cranes according to claim 1 is characterized in that: The base is composed of a bottom plate and a vertical plate. Eight identical vertical plates are spaced apart in pairs and evenly and vertically fixed on a horizontally placed square bottom plate. The inward ends of the eight vertical plates together form a square support foot groove. The bottom ends of the vertically placed welded supports are fixed in the support foot groove and between the four pads on the base. Two through holes are provided on the upper and lower sides of the bottom plate of the base for the precision-rolled threaded bolts to pass through.

3. The assembled tower crane foundation applicable to various types of tower cranes according to claim 2 is characterized in that: The square of the foot slot is staggered 90 degrees from the square of the base.

4. The assembled tower crane foundation applicable to various types of tower cranes according to claim 2 is characterized in that: The two through holes on the upper side and the two through holes on the lower side of the bottom plate form a rectangle, and the two through holes on the left side and the two through holes on the right side are arranged on both sides of the vertical upright plate.

5. The assembled tower crane foundation applicable to various types of tower cranes according to claim 1 is characterized in that: The four bases are all arranged in a rectangle formed by four parallel beams.

6. The assembled tower crane foundation applicable to various types of tower cranes according to claim 1 is characterized in that: An upwardly opening mounting groove is provided in the middle of the upper end of each steel pipe pile, and a pile cap is installed on the pipe wall below the mounting groove. The end of the distribution beam is stuck inside the mounting groove and falls on two pile caps under the mounting groove. After adjusting the position of the pile cap, the end of the distribution beam is welded and fixed to the pile cap.

7. The assembled tower crane foundation applicable to various types of tower cranes according to claim 1 is characterized in that: T-shaped arc steel plates are arranged on the front and back sides of the steel pipe piles. The T-shaped arc steel plates are wrapped around the outside of the steel pipe piles and fall on the distribution beam to close the gap between the distribution beam and the steel pipe piles. A semi-arc steel plate is provided between the top of the T-shaped arc steel plate and the top of the distribution beam. The semi-arc steel plates are fully welded and fixed to the contact positions of the distribution beam and the T-shaped arc steel plates. At this time, there is no large gap between the distribution beam and the steel pipe piles, and the T-shaped arc steel plate and the semi-arc steel plate connect and close the distribution beam and the steel pipe pile as a whole.

Images