A kind of precast concrete assembly unit basis
Technical field
The present invention relates to the concrete foundation of communication iron tower, more particularly, relate to a kind of precast concrete assembly unit basis that is used for communication iron tower.
Background technology
Communication iron tower generally is fixed on the concrete foundation; When building concrete foundation; Need the excavation ground, concreting is basic in ground then, and the maintenance that the concrete foundation that completion is built need be passed through certain hour could be provided with the communication iron tower above that afterwards; This process cycle is long, and common concrete foundation construction is all about 30 days.In addition, the concrete foundation construction also receives the influence of environment and weather, compares under the condition of severe in condition, and duration and construction cost all can significantly increase.
In order to address the above problem; Also there is the assembly unit basis of some prefabricated units to occur; For example in Chinese patent ZL201020184249.X and ZL201020184245.1, disclose the assembly unit basis of prefabricated units respectively, comprised sole plate and be located at the basic short column on the sole plate; The side of sole plate can also connect basic side plate, and the latter half at least of base station base plate, basic side plate and basic short column need be imbedded below ground.Though this assembly unit basis does not need cast in situs, still need excavate ground, the basis is imbedded underground, still there is the inconvenient defective of construction.In addition, because sole plate is an overall structure, the volume of basic short column is also bigger, causes the weight of sole plate and basic short column big, and transportation is inconvenient, particularly for the construction of occasions such as mountain area, roof, brings very big difficulty to construction.
Summary of the invention
The technical problem that the present invention will solve is; To the basic above-mentioned defective of the assembly unit of prior art, a kind of precast concrete assembly unit basis is provided, this precast concrete assembly unit basis can be installed on the ground of smooth compacting; Easy construction; And quality of concrete members is light, and versatility is good, can be assembled into various forms.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of precast concrete assembly unit basis, comprise core concrete piece that at least one is prefabricated and the splicing concrete block that at least one is prefabricated;
Be embedded with the fixation kit that is used for fixing iron tower on the said core concrete piece; Said core concrete piece all has first through hole that extends along first direction with the splicing concrete block; And second through hole that extends along second direction; Said first direction is parallel with horizontal plane with second direction, and said first direction and second direction are perpendicular, and said first through hole and second through hole are positioned on the different horizontal face;
Said precast concrete assembly unit basis also comprises the prestressed reinforcement assembly; Said prestressing force assembly comprises prestressed reinforcement at least, and first through hole or second through hole that said prestressed reinforcement passes said core concrete piece and splicing concrete block are fixed together said core concrete piece and splicing concrete block.
In precast concrete assembly unit of the present invention basis, said core concrete piece is provided with a hanger at least with splicing on the concrete block.
In precast concrete assembly unit of the present invention basis, said fixation kit comprises at least three bolts, and said three bolts are distributed on three summits of equilateral triangle.
In precast concrete assembly unit of the present invention basis, said core concrete piece has said first through hole of one deck and said second through hole of one deck at least at least respectively with the splicing concrete block.
In precast concrete assembly unit of the present invention basis, said core concrete piece has two-layer said first through hole and two-layer said second through hole respectively with the splicing concrete block.
In precast concrete assembly unit of the present invention basis, the two ends of said prestressed reinforcement have screw thread, and the two ends of said prestressed reinforcement respectively have at least one pad and state nut with at least one.
In precast concrete assembly unit of the present invention basis; Said precast concrete assembly unit basis comprises a said core concrete piece and eight splicing concrete blocks; Said eight splicing concrete surround " mouth " font; Said core concrete piece is positioned at the center of said " mouth " font, and the splicing concrete block of arranging along same direction in said eight splicing concrete blocks is fixed through said prestressed reinforcement assembly.
In precast concrete assembly unit of the present invention basis; Said precast concrete assembly unit basis comprises a said core concrete piece and four splicing concrete blocks; Said four the splicing concrete blocks be distributed in said core concrete piece around, said precast concrete assembly unit basis is " ten " font.
In precast concrete assembly unit of the present invention basis; Said precast concrete assembly unit basis comprises a said core concrete piece and four splicing concrete blocks; Wherein two splicing concrete blocks of said four splicing concrete blocks are distributed in the relative both sides of said core concrete piece; All the other two splicing concrete blocks are arranged in an other side of said core concrete piece, and institute precast concrete assembly unit basis is " T " font.
The precast concrete assembly unit basis of embodiment of the present invention; Have following beneficial effect: precast concrete assembly unit of the present invention basis adopts precast concrete block to be spliced, and only need be installed on the ground of compacting, need not deep excavation; And the light weight of single concrete block; Versatility is good, is convenient to a dead lift, is easy to mountain area or roof operation.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the sketch map of first embodiment on precast concrete assembly unit of the present invention basis;
Fig. 2 is the front view of core concrete block among the first basic embodiment of precast concrete assembly unit of the present invention;
Fig. 3 is the lateral view of core concrete block among the first basic embodiment of precast concrete assembly unit of the present invention;
Fig. 4 is the front view of splicing concrete block among the first basic embodiment of precast concrete assembly unit of the present invention;
Fig. 5 is the lateral view of splicing concrete block among the first basic embodiment of precast concrete assembly unit of the present invention;
Fig. 6 is the sketch map of second embodiment on precast concrete assembly unit of the present invention basis;
Fig. 7 is the sketch map of the 3rd embodiment on precast concrete assembly unit of the present invention basis.
The specific embodiment
To understand in order technical characterictic of the present invention, purpose and effect being had more clearly, to contrast accompanying drawing at present and specify the specific embodiment of the present invention.
As shown in Figure 1; Sketch map for the first basic embodiment of the precast concrete assembly unit of invention; The precast concrete assembly unit basis of this embodiment comprises a core concrete piece 1 and eight splicing concrete blocks 2; Core concrete piece 1 and eight splicing concrete blocks 2 are precast concrete block, can adopt the batch production large-scale production, are spliced into the basis after core concrete piece 1 and eight splicing concrete blocks 2 are transported to the scene.
Referring to Fig. 2 and shown in Figure 3, the core concrete piece 1 in the present embodiment is a cuboid, and it is projected as square on horizontal plane; Core concrete piece 1 is provided with two-layer first through hole 101 that extends along first direction; Every layer comprises two first through holes 101, and two-layer second through hole 102 that extends along second direction, and every layer comprises two second through holes 102; First direction and second direction are perpendicular; Also promptly the bearing of trend of first through hole 101 and second through hole 102 is perpendicular, and first through hole 101 and second through hole 102 are positioned on the different horizontal face, and also promptly the horizontal projection of first through hole 101 and second through hole 102 is perpendicular; But first through hole 101 and second through hole, 102 non-intersect forks, first through hole 101 and its side of being run through vertical respectively with second through hole 102.The through hole that is on the same horizontal plane is referred to as one deck through hole.It will be appreciated that the number of first through hole 101 and second through hole 102 is not limited to two, also can be one or more.
Rigid tower further, can be provided with iron tower fixation kit 3 in core concrete piece 1 for ease; In this city embodiment, this iron tower fixation kit 3 can be that six bolts, 31, six bolts 31 that are embedded in the concrete block 1 are distributed on the orthohexagonal summit; In the reality; Also can be that three bolts, 31, three bolts are distributed on three summits of equilateral triangle, the number of bolt 31 also can be other numbers.Carry core concrete piece 1 for ease, further, hanger 11 can also be set on core concrete piece 1, hanger 11 can be one, preferred two, and like this can be conveniently through utilizing hanger 11 carrying core concrete pieces 1.
Referring to Fig. 4 and Fig. 5; In the present embodiment, the shape of splicing concrete block 2 is identical with the shape of core concrete piece 1, is cuboid all; It is highly identical; On horizontal plane, be projected as identical square, said core concrete piece 1 can splice in arbitrary side with splicing concrete block 2, to adapt to the needs of various application scenarios.The difference of splicing concrete block 2 and core concrete piece 1 only is, is not used in the fixation kit 3 of rigid tower on the splicing concrete block 2, and all the other structures are identical with the structure of core concrete piece 1, repeat no more.Because the shape of splicing concrete block 2 is identical with the shape of core concrete piece 1, can adopt identical mould when building, because splicing concrete block 2 is a symmetrical structure, versatility is good, need not produce various concatenation module, can reduce production costs.
Referring to Fig. 1; Core concrete piece 1 is fixed together through the prestressed reinforcement assembly with splicing concrete block 2, and the prestressed reinforcement assembly comprises prestressed reinforcement 41, and the two ends of prestressed reinforcement 41 are provided with screw thread; The two ends of prestressed reinforcement 41 are respectively equipped with at least one pad 42 and nut 43; First through hole 101 or second through hole 102 that prestressed reinforcement 41 passes core concrete piece 1 and splicing concrete block 2 are fixed together core concrete piece 1 and splicing concrete block 2, and in the present embodiment, eight splicing concrete blocks 2 surround " mouth " font; Core concrete piece 1 is positioned at the center of " mouth " word; Splicing concrete block 2 along same direction is arranged is also fastening through the prestressed reinforcement assembly, is that the globality on whole basis is better like this, and is more firm.Prestressed reinforcement 41 runs through whole assembly unit basis in length and breadth, is that the globality on assembly unit basis is relatively good.
Referring to Fig. 6; Sketch map for the second basic embodiment of precast concrete assembly unit of the present invention; In this embodiment, comprise 2, four splicings of a core concrete piece 1 and four splicing concrete block concrete block 2 be distributed in core concrete piece 1 around; Be fixed together through prestressed reinforcement 41 and core concrete piece 1; Whole assembly unit basis is " ten " font, and the structure of core concrete piece 1 and splicing concrete block 2 is identical with the structure of splicing concrete block 2 with the core concrete piece 1 among first embodiment, repeats no more.
Referring to Fig. 7; Sketch map for the 3rd basic embodiment of precast concrete assembly unit of the present invention; In this embodiment; Comprise wherein connecting a relative two sides that are distributed in core concrete piece 1 in 2, four splicings of a core concrete piece 1 and four splicing concrete block concrete block 2 that two other splicing concrete 2 is arranged in the wherein side in the other both sides of core concrete piece 1; The splicing concrete block is fixed together through prestressed reinforcement 41 and core concrete piece 1; Whole assembly unit basis is " T " font, and the structure of core concrete piece 1 and splicing concrete block 2 is identical with the structure of splicing concrete block 2 with the core concrete piece 1 among first embodiment, repeats no more.
By above-mentioned three embodiment, can find out that precast concrete assembly unit of the present invention basis can utilize at least one core concrete piece 1 and at least one splicing concrete block 2 to be assembled into the assembly unit basis of different shape, can satisfy the needs of various application scenarios.
Precast concrete assembly unit of the present invention basis only need be installed on the ground of smooth compacting, need not deep excavation, can reduce the site work amount, and installation does not receive weather effect, installation rate piece; Precast concrete block can the batch production large-scale production, and production efficiency is high, and quality and expense are easy to control, and during the iron tower resettlement, this basis can be moved thereupon, saves the basic expense of making again.In addition, the lighter weight of precast concrete block is convenient to a dead lift, is easy to go up a hill and last roof; Prestressed reinforcement runs through the basis, and base integral property is good, and the basis can be assembled into different shape as required.
Combine accompanying drawing that embodiments of the invention are described above; But the present invention is not limited to the above-mentioned specific embodiment, and the above-mentioned specific embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under enlightenment of the present invention; Not breaking away under the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong within the protection of the present invention.