A kind of holohedral symmetry prestressed assembly formula foundation for tower crane connecting pile foundation
Technical field
Present invention is mainly used for building engineering field tower crane foundation.
Background technology
The patent of invention that I has authorized: a kind of holohedral symmetry prestressed assembly formula foundation for tower crane, the patent No.: ZL201210114414.8, pile foundation is not combined, runs into soft foundation inapplicable by this patent.
Summary of the invention
Pin-connected panel foundation for tower crane is combined by the present invention with pile foundation, greatly strengthen the resistance to capsizing of tower crane, is simultaneously suitable for soft foundation, expands the range of pin-connected panel foundation for tower crane.
It is an advantage of the current invention that:
1.
Flat shape is holosymmetric, overcomes weak axle problem.
2.
Plane combination is simple, only split basic plane in a direction, Shi Hanzhang is also a direction, need the most two-way Shi Hanzhang like that not necessarily like beam and slab type or beam type assembly tower crane and cause basic plane deformation after assembly, particularly fix the relative change in location of four groups of pre-embedded bolts of tower crane and the relative position error of producing.
3.
The present invention is after Shi Hanzhang anchoring, and the basic stress after assembly is reasonable, and the frictional force between bar blocks and bar blocks can resist the shear stress suffered by basis;The steel strand wires arranged up and down (
3
) moment of flexure suffered by basis can be resisted
。
4.
Prefabricated components are simple, and shape is single, the most prefabricated, are not easy to damage and substitute easily during lifting and assembly.
5.
Relatively for beam foundation, the present invention is more reliable and more stable, and joins reinforcing bar amount and reduce, and saves amount of reinforcement, although multiplex concrete amount, but adds basis weight, and when work to overcoming tower crane, the vibrations load of generation is helpful, adds security reliability.
6.
For fix four groups of pre-embedded bolts of tower crane support be embedded in respectively two bar blocks (
2
On), make to be embedded in two bar blocks two groups of pre-embedded bolt groups along bar blocks long side direction and do not have assembled error.
7.
Pin-connected panel foundation for tower crane is combined by the present invention with pile foundation, greatly strengthen the resistance to capsizing of tower crane, can be suitably used for again soft foundation simultaneously, expands the range of pin-connected panel foundation for tower crane.
The present invention is mainly by bar blocks
A
(
1
), with pre-embedded bolt bar blocks (
2
), bar blocks
B
(
13
), steel strand wires (
3
), anchorage (
5
), junction steel plate (
8
), stake (
11
) composition;Bar blocks
A
(
1
) porose
C
(
15
), with pre-embedded bolt bar blocks (
2
) have pre-embedded bolt group (
4
), bar blocks
A
(
1
), with pre-embedded bolt bar blocks (
2
), bar blocks
B
(
13
) be all embedded with
U
Shape steel plate (
7
) and all have arcuate groove (
14
) and multiple hole
A
(
6
), junction steel plate (
8
) porose
B
(
10
), stake (
11
) be embedded with the main muscle of stake (
9
);The main muscle of stake (
9
) sequentially pass through bar blocks
A
(
1
) hole
C
(
15
) and junction steel plate (
8
) hole
B
(
10
) and with nut by stake (
11
) and bar blocks
A
(
1
) fixing;Steel strand wires (
3
) through multiple bar blocks
A
(
1
), multiple bar blocks with pre-embedded bolt (
2
), multiple bar blocks
B
(
13
) hole
A
(
6
), two ends with anchorage (
5
) fixing;Work progress and the operation principle of the present invention be: first construction stake (
11
), then lift bar blocks
A
(
1
), by stake (
11
) the main muscle of stake (
9
) insert bar blocks
A
(
1
) hole
C
(
15
In), then lift bar blocks with pre-embedded bolt (
2
) and bar blocks
B
(
13
), make bar blocks
U
Shape steel plate (
7
) insert adjacent bar blocks arcuate groove (
14
) in, then by steel strand wires (
3
) sequentially pass through the hole of each bar blocks
A
(
6
), steel strand wires (
3
) two ends Shi Hanzhang after, with anchorage (
5
) fixing, form holosymmetric tower crane form, finally by junction steel plate (
8
) hole
B
(
10
) through the main muscle of stake (
9
), with nut by whole tower crane and stake (
11
) fixing, tower crane installs, with rear pre-embedded bolt group (
4
Tower crane is installed on).
Accompanying drawing explanation
Description of reference numerals:
1-
Bar blocks
A
,
2-
With the bar blocks of pre-embedded bolt,
3-
Steel strand wires,
4-
Pre-embedded bolt group,
5-
Anchorage,
6-
Hole
A
,
7-U
Shape steel plate,
8-
Junction steel plate,
9-
The main muscle of stake,
10-
Hole
B
,
11-
Stake,
12-
Ground,
13-
Bar blocks
B
,
14-
Arcuate groove,
15-
Hole
C
。
Figure
1
It it is the square composite plane graph of the present invention.
Figure
2
It it is the octagon combination view of the present invention.
Figure
3
It is the present invention
C-C
Profile.
Figure
4
It is the present invention
D-D
Profile.
Figure
5
Be the present invention junction steel plate (
8
) drawing.
Figure
6
It it is the transverse section drawing of bar blocks of the present invention.
Figure
7
It it is bar blocks of the present invention
A
(
1
) longitudinal sectional drawing.
Detailed description of the invention
Summary of the invention has been described in detail the detailed description of the invention of the present invention, is not repeated herein, and need to be described as follows: see figure
1
, figure
2
, first should select different basic arrangement forms according to parameters such as tower crane foundation bearing capacity situation and the tower crane biggest lifting capacities, the plane on basis can be square can also be octagon, circle or other any holosymmetric shapes.See figure
3
, steel strand wires (
3
) arrange up and down and can resist the moment of flexure suffered by basis;Bar blocks
U
Shape steel plate (
7
) embed adjacent bar blocks arcuate groove (
14
In), the anti-shear ability between adjacent bar block can be greatly increased, enhance the globality on basis.