CN105649103A - Pile-beam structure integrated tower crane foundation structure and construction method thereof - Google Patents
Pile-beam structure integrated tower crane foundation structure and construction method thereof Download PDFInfo
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- CN105649103A CN105649103A CN201610176856.3A CN201610176856A CN105649103A CN 105649103 A CN105649103 A CN 105649103A CN 201610176856 A CN201610176856 A CN 201610176856A CN 105649103 A CN105649103 A CN 105649103A
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- 238000010276 construction Methods 0.000 title claims abstract description 102
- 238000013461 design Methods 0.000 claims abstract description 85
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 33
- 239000011449 brick Substances 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 26
- 239000004567 concrete Substances 0.000 claims description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 21
- 238000012544 monitoring process Methods 0.000 claims description 20
- 238000009412 basement excavation Methods 0.000 claims description 17
- 239000002689 soil Substances 0.000 claims description 16
- 238000005516 engineering process Methods 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 10
- 230000002787 reinforcement Effects 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000004062 sedimentation Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 230000008520 organization Effects 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 230000007812 deficiency Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
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- General Engineering & Computer Science (AREA)
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
A pile-beam structure integrated tower crane foundation structure comprises an engineering pile system, a cross foundation beam, a water stop steel plate, reserved ribs and a basement bottom plate; the tower crane foundation comprises two design engineering piles and a cross foundation beam to form a pile beam structure integrated tower crane foundation, wherein the cross foundation beam is in a cross shape and comprises a tower crane bearing platform and an inter-pile connecting beam, and the tower crane bearing platform and the inter-pile connecting beam are composed of a cross foundation beam cushion layer, cross foundation beam reinforcing steel bars and a brick moulding bed positioned at the edge of the cross foundation beam, which are sequentially positioned on a design engineering pile system; the water stop steel plate is welded and fixed at the joint of the cross foundation beam and the basement bottom plate, and an engineering pile system, the cross foundation beam and the basement bottom plate are designed to be poured together to form a whole to form a pile-beam structure integrated tower crane foundation structure; the tower crane base is installed on the tower crane bearing platform of cross foundation beam. The pile-beam structure integrated tower crane foundation structure has high bearing capacity, good stability, good safe use function and strong adaptability, and can quickly form horizontal and vertical transport capacity. The construction operation is simple and convenient, and the working efficiency is high.
Description
Technical field
The present invention relates to a kind of tower crane structure and constructional method thereof, particularly a kind of stake girder construction integral type tower crane structure and constructional method thereof.
Background technology
Modern architecture construction is very general to the use of tower crane, and in the face of the restriction of engineering specifications complexity, bearing capacity of foundation soil wretched insufficiency etc., people generally adopt single pile or clump of piles supporting type tower crane. Pile tower crane is because of its bearing capacity height, and good stability, is widely used in all kinds of engineering. Traditional pile tower crane sequence of construction is: pile foundation construction �� cushion cap earthwork construction �� cushion cap reinforcing bar binding �� Zhi Mo �� installation tower crane base embedded part �� build cushion cap concrete. Its pile foundation construction cycle is longer, if the intermittent time that multi-column pier foundation also needs quite to grow, and pile foundation construction needs, and extra input is artificial, material resources, causes cost to increase. This kind of traditional pile tower crane foundation construction method can not meet the target of construction period with joint ground, material-saving.
Summary of the invention
It is an object of the invention to provide " a kind of stake girder construction integral type tower crane structure and constructional method thereof ", this girder construction integral type tower crane structural bearing capacity height, good stability, strong adaptability, and level, carriage vertically ability can be formed fast, effectively solve the difficulty that extraneous execution conditions deficiency is brought, ensure the best available work radius of tower crane, tower crane is allowed to be able within the short period of time to install and come into operation, accelerating construction progress to greatest extent, reduce tower crane construction cost to drop into, reach the object of joint ground, material-saving; To solve the problems referred to above that prior art exists.
The technical scheme solved the problem is: a kind of stake girder construction integral type tower crane structure, comprises design engineering stake system, cross foundation beam, steel plate for sealing water, reserving rib and basement bottom board;
Two design engineering stakes and cross foundation beam form stake girder construction integral type tower crane, utilize the bearing capacity more than needed of design engineering stake to bear upper load and transfer the load to ground;
Described cross foundation beam is cruciform, comprises coupling beam two portions between tower crane cushion cap, stake, is made up of the cross foundation beam bed course being positioned at successively in design engineering stake system, cross foundation beam reinforcing bar, the brick loose tool that is positioned at cross foundation beam edge; Described cross foundation beam and design engineering stake System forming stake girder construction integral type tower crane, pass to pile foundation for tower crane deadweight and other being erected to load, and is formed common by power body with basement bottom board, overall antidumping;
Steel plate for sealing water for construction joint waterproof, sealing is weldingly fixed on cross foundation beam and basement bottom board junction, adopts L-type reinforcing bar to make the bracing frame of steel plate for sealing water, and the short side weld of L-type reinforcing bar is on steel plate for sealing water;
For connect cross foundation beam and basement bottom board reserving rib colligation at cross foundation beam reinforcing bar;
Utilize design engineering stake system, cross foundation beam and basement bottom board are built formation entirety jointly and forms a girder construction integral type tower crane structure; Tower crane base is arranged on the tower crane cushion cap of cross foundation beam.
Its further technical scheme is: at cross foundation beam two ends, i.e. design engineering stake system top, cross foundation beam transverse axis, closing on of longitudinal axis direction, basement bottom board is furnished with round end stainless steel settlement monitoring point respectively, by the feedback information of field monitoring data, the loads change occurred in construction process is played forewarning function.
Another relevant technical scheme is: a kind of stake girder construction integral type tower crane construction method, it is the constructional method realizing the present invention's above-mentioned stake girder construction integral type tower crane structure, this constructional method is with BIM technology solid modelling, assisting chooses premised on tower crane type and position, utilize the bearing capacity more than needed of design engineering stake, cast-in-situ steel reinforced concrete cross foundation beam is set between two design engineering stakes, and steel plate for sealing water and reserving rib are set between cross foundation beam and basement bottom board, cross foundation beam and basement bottom board are built jointly, form the common entirety by power, thus form a kind of novel stake girder construction integral type tower crane structure,
Its construction technology process is: scheme �� versatility basic design �� measurement and positioning �� excavation of foundation pit �� cushion construction �� assembling reinforcement �� build brick loose tool �� backfilling of earthwork �� installations steel plate for sealing water by laying bricks or stones settled by selected tower crane and colligation reserving rib �� casting concrete �� vertical tower �� basement bottom board construction �� sedimentation is observed and being come into operation; Its Specific construction step is:
A, preparation of construction:
Action comprises selected tower crane and settles scheme, carries out versatility basic design and measurement and positioning;
B, excavation of foundation pit:
B1, broken pile head:
Elevation line is caused a body by bracing wire, carries out cutting a hole clearly stake head with pneumatic pick, and namely cutter stops to the design above 100mm of absolute altitude; Within the scope of design absolute altitude 100mm, carefully cut smooth with hair clasp;
B2, soil excavation:
Soil excavation adopts a small-sized backhoe [shovel to excavate, and stops mechanical equivalent of light excavation when being excavated to the design above 300mm of absolute altitude, rest part with being manually excavated to design absolute altitude, and with digging with fortune;
C, making cross foundation beam:
C1, carry out cross foundation beam cushion construction:
By design requirements, checking an axis and determine cross foundation beam cushion cap bed-plate dimension skeletal lines, bed course sideline is the outer 100mm of cross foundation beam cushion cap brick loose tool;
C2, assembling reinforcement:
After cushion construction completes, when concrete strength reaches 1.2MPa, surface snap the line carries out cross beam cushion cap reinforcing bar binding by design;
C3, build brick loose tool by laying bricks or stones;
C4, backfilling of earthwork:
Carrying out backfilling of earthwork construction after brick loose tool has built 24 hours by laying bricks or stones, backfill soil needs tamping in layers, consolidates loose tool bearing capacity with soil body wall pressure;
C5, steel plate for sealing water colligation reserving rib are installed;
C6, casting concrete;
D, installation tower crane:
Reach after design requirements until concrete strength, carry out wall screw axis and size and check, check qualified after namely carry out tower crane installation;
E, basement bottom board are constructed:
Build the concrete of basement base plate relevant to tower crane;
F, laying monitoring point.
Described a kind of stake girder construction integral type further technical scheme of tower crane construction method is: described A, the work of preparation of construction step comprise:
Scheme settled by A1, selected tower crane:
According to design paper and geologic prospect data and construction organization design document, utilize BIM technology application software, buildings entirety is carried out 3 D stereo modeling, draw the tentatively selected tower crane position of relative spatial location parameter and required tower crane model;
A2, versatility basic design:
1. technical parameter, engineering design file and the Force Calculation provided according to tower crane operation instruction, drafts cross foundation beam tower crane dimension of platform;
2. again according to building three-dimensional stereo model provide technical parameter and engineering design parameter calculate, draw tower crane work and off working state under erect to load and upsetting moment;
3. according to the calculation of correlation formula checking computations design engineering pile ultimate bearing capacity of " Code for design of concrete structures " (GB50010), cross-section of coupling beam size and arrangement of reinforcement between stake is determined according to checking computation results;
A3, measurement and positioning:
Carry out pilot measurement from buildings coordinate basis point or agent structure axial line control point, it is determined that the position of tower crane, arrange coordinate control point; Particularly: the coordinate control point of beam axis, stake.
The action of described F, laying monitoring point step is:
After basement bottom board has been constructed, at the two ends of cross foundation beam, middle part and surrounding lay round end stainless steel settlement monitoring point, by the feedback information of field monitoring data, the loads change occurred in construction process is played forewarning function; Tower crane sedimentation and tower body verticality measure the same cycle, and same frequency, tower crane displacement is reflected jointly by the two data.
The present invention's it " a kind of stake girder construction integral type tower crane structure and constructional method thereof " has following feature and useful effect:
The Force principle of a kind of the girder construction integral type tower crane structure of the present invention is: it is a kind of stake girder construction integral type tower crane utilizing design engineering stake, cross foundation beam and basement bottom board being built formation entirety jointly and formed, tower crane deadweight and all other are erected and are passed to pile foundation to load by cross foundation beam by it, are finally passed to bearing stratum again; The load of horizontal direction then common is shared by power entirety by what tower crane cross foundation beam and basement bottom board were formed, is carried; The stake girder construction integral type base form of this kind of super-section, large span, can effectively solve the defect of bearing capacity of foundation soil deficiency and difficulty that extraneous execution conditions deficiency is brought, also for the layout of tower crane provides different selection.
Compared with prior art, therefore, a kind of the girder construction integral type tower crane structure of the present invention and the useful effect of constructional method thereof are:
1. constructing operation is easy, saves the duration:
Adopt one stake girder construction integral type tower crane structure and the constructional method thereof of the present invention, tower crane can come into operation before soil excavation, and based on construction provide desirable carriage vertically ability, compared with traditional built-in tower crane, pit earthwork can once excavate and put in place, effectively saves the duration.
2. working efficiency height:
Adopt the one stake girder construction integral type tower crane structure of the present invention at reasonably optimizing tower crane arrangement under disadvantageous geologic condition, the working efficiency of tower crane can be played to greatest extent, decrease the covering blind area of tower crane; Arrange for tower crane and provide different selection, effectively reduce the input quantity of tower crane.
3. use better function safely:
The one stake girder construction integral type tower crane structure formation of the present invention, jointly builds design engineering stake, cross foundation beam and basement bottom board and forms entirety, do not destroy design basement bottom board structure, and rigidity is big, good stability; And adopting double monitoring means to carry out tower crane displacement early warning, whole construction process is in safety, stable, controllable state.
4. remarkable in economical benefits:
The one stake girder construction integral type tower crane structure of the present invention combines design engineering stake, and have employed cross foundation beam and form that basement bottom board is built jointly, employ buildings design primary structure member to greatest extent, greatly reducing the cost of tower crane.
Below in conjunction with drawings and Examples to the present invention itOneThe technology feature planting stake girder construction integral type tower crane structure and constructional method thereof is described further.
Accompanying drawing explanation
Fig. 1��Fig. 4 is the structural representation of the stake girder construction integral type tower crane structure of the present invention;
Fig. 1 is front view;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the layout schematic diagram of settlement monitoring point;
Fig. 5��Figure 10 is a concrete steps schematic diagram for the constructional method of girder construction integral type tower crane structure:
Fig. 5 is the view of step B, excavation of foundation pit;
Fig. 6 be step C, make cross foundation beam C1, carry out cross foundation beam cushion construction after view;
Fig. 7, Fig. 8 are the view after step C, the C2 making cross foundation beam, assembling reinforcement;
Fig. 7 is vertical planning drawing, and Fig. 8 is the orthographic plan (vertical view) of Fig. 7;
Fig. 9 be step C, make cross foundation beam C3, build brick loose tool by laying bricks or stones after view;
Figure 10 is the view after step C makes the C4 of cross foundation beam, backfilling of earthwork;
Figure 11 be step C make cross foundation beam C5, steel plate for sealing water 3 colligation reserving rib are installed after view;
Figure 12 is the view after C makes the C6 of cross foundation beam, casting concrete;
Figure 13 is the view after step D installs tower crane 5;
Figure 14 is the view after step e, basement bottom board construction;
Figure 15 is the view after step F, laying point of observation.
In figure:
11,12 design engineering stake;
2 cross foundation beams, 21 tower crane cushion caps, coupling beam, 23 cross foundation beam bed courses, 24 cross foundation beam reinforcing bars, 25 brick loose tools between 22;
3 steel plate for sealing water, 4 reserving ribs, 5 tower cranes, 6 monitoring points, 7 basement bottom boards, 8-backfill soil.
Embodiment
Embodiment one:
A kind of stake girder construction integral type tower crane structure:
As Figure 1-Figure 4, this girder construction integral type tower crane structure comprises design engineering stake system, cross foundation beam 2, steel plate for sealing water 3, reserving rib 4 and basement bottom board 7;
Described design engineering stake system has two design engineering stakes 11,12, and two design engineering stakes and cross foundation beam 2 form stake girder construction integral type tower crane, utilizes the bearing capacity more than needed of design engineering stake to bear upper load and transfer the load to ground;
Described cross foundation beam 2 is cruciform, comprise coupling beam 22 two portions between tower crane cushion cap 21, stake, it is made up of the cross foundation beam bed course 23 being positioned at successively in two design engineering stakes 11,12, cross foundation beam reinforcing bar 24 and the brick loose tool 25 that is positioned at cross foundation beam edge; Described cross foundation beam 2 and design engineering stake System forming stake girder construction integral type tower crane, pass to pile foundation for tower crane deadweight and other being erected to load, and is formed common by power body with basement bottom board 7, overall antidumping;
Steel plate for sealing water 3 for construction joint waterproof, sealing is weldingly fixed on cross foundation beam 2 and basement bottom board 7 junction, adopts L-type reinforcing bar to make the bracing frame of steel plate for sealing water, and the short side weld of L-type reinforcing bar is on steel plate for sealing water;
For connect cross foundation beam and basement bottom board reserving rib 4 colligation at cross foundation beam reinforcing bar 24;
Utilize design engineering stake system 11,12, cross foundation beam 2 and basement bottom board 7 are built jointly formed overall and form a girder construction integral type tower crane structure; Tower crane base is arranged on the tower crane cushion cap 21 of cross foundation beam 2;
At the two ends of tower crane, i.e. design engineering stake system 11,12 top, cross foundation beam 2 transverse axis, closing on of longitudinal axis direction, basement bottom board 7 is furnished with round end stainless steel settlement monitoring point 6 respectively; By the feedback information of field monitoring data, the loads change occurred in construction process is played forewarning function; Tower crane sedimentation and tower body verticality measure the same cycle, and same frequency, tower crane displacement is reflected jointly by the two data.
Embodiment two:
A kind of stake girder construction integral type tower crane construction method, it it is the constructional method realizing stake girder construction integral type tower crane structure described in embodiment one, this constructional method is with BIM technology solid modelling, assisting chooses premised on tower crane type and position, utilize the bearing capacity more than needed of design engineering stake, cast-in-situ steel reinforced concrete cross foundation beam is set between two design engineering stakes, and steel plate for sealing water and reserving rib are set between cross foundation beam and basement bottom board, cross foundation beam and basement bottom board are built jointly, form the common entirety by power, thus form a kind of novel stake girder construction integral type tower crane structure,
Its construction technology process is: scheme �� versatility basic design �� measurement and positioning �� excavation of foundation pit �� cushion construction �� assembling reinforcement �� build brick loose tool �� backfilling of earthwork �� installations steel plate for sealing water by laying bricks or stones settled by selected tower crane and colligation reserving rib �� casting concrete �� vertical tower �� basement bottom board construction �� sedimentation is observed and being come into operation; Its Specific construction step is:
A, preparation of construction:
Concrete action comprises position:
Scheme settled by A1, selected tower crane:
According to design paper and geologic prospect data and construction organization design document, utilize BIM technology application software, buildings entirety is carried out 3 D stereo modeling, draw the tentatively selected tower crane position of relative spatial location parameter and required tower crane model;
A2, versatility basic design:
1. technical parameter, engineering design file and the Force Calculation provided according to tower crane operation instruction, drafts cross foundation beam tower crane cushion cap 21 size;
2. again according to building three-dimensional stereo model provide technical parameter and engineering design parameter calculate, draw tower crane work and off working state under erect to load and upsetting moment;
3. according to the calculation of correlation formula checking computations design engineering pile ultimate bearing capacity of " Code for design of concrete structures " (GB50010), coupling beam 22 cross section size and arrangement of reinforcement between stake is determined according to checking computation results;
A3, measurement and positioning:
Carry out pilot measurement from buildings coordinate basis point or agent structure axial line control point, it is determined that the position of tower crane, arrange coordinate control point. Particularly: the coordinate control point of beam axis, stake.
B, excavation of foundation pit (see Fig. 5):
B1, broken pile head:
Elevation line is caused a body by bracing wire, carries out cutting a hole clearly stake head with pneumatic pick, and namely cutter stops to the design above 100mm of absolute altitude; Within the scope of design absolute altitude 100mm, carefully cut smooth with hair clasp;
B2, soil excavation:
Soil excavation adopts a small-sized backhoe [shovel to excavate, and stops mechanical equivalent of light excavation when being excavated to the design above 300mm of absolute altitude, rest part with being manually excavated to design absolute altitude, and with digging with fortune;
C, making cross foundation beam 2:
C1, carry out cross foundation beam bed course 23 and construct (see Fig. 6):
By design requirements, checking an axis and determine cross foundation beam cushion cap bed-plate dimension skeletal lines, bed course sideline is the outer 100mm of cross foundation beam cushion cap brick loose tool;
C2, colligation cross foundation beam reinforcing bar 24(are see Fig. 7, Fig. 8):
After cushion construction completes, when concrete strength reaches 1.2MPa, surface snap the line carries out cross foundation beam reinforcing bar binding by design; First build 2��3 brick loose tools by laying bricks or stones according to foundation beam size before reinforcing bar binding, play reinforcing bar location and protective layer thickness control action kou;
C3, build brick loose tool 25(by laying bricks or stones see Fig. 9):
Brick loose tool adopts 200 �� 390 �� 200 concrete small size hollow building blocks to be equipped with part small fire-free brick and builds by laying bricks or stones; In building process, use of mutually arranging in pairs or groups, meets modulus to adjust;
C4, backfilling of earthwork (see Figure 10):
Carrying out backfilling of earthwork construction after brick loose tool has built 24 hours by laying bricks or stones, backfill soil 8 needs tamping in layers, consolidates loose tool bearing capacity with soil body wall pressure;
C5, steel plate for sealing water 3 colligation reserving rib 4(are installed see Figure 11):
It is welded and fixed steel plate for sealing water 3 and colligation reserving rib 4 along cross foundation beam and basement bottom board junction; Steel plate for sealing water is arranged on base plate 1/2 thickness place, adopts L-type reinforcing bar to make the bracing frame of steel plate for sealing water, and short side weld is on steel plate for sealing water;
C6, casting concrete (see Figure 12):
Must shock closely knit during casting concrete, and overlay film maintenance between 12h to 24h after having built;
D, installation tower crane 5(are see Figure 13):
Reach after design requirements until concrete strength, carry out wall screw axis and size and check, check qualified after namely carry out tower crane installation;
E, basement bottom board 7 construct (see Figure 14):
Build the concrete of basement base plate relevant to tower crane; Basement bottom board should notice when constructing that tower crane steel plate for sealing water 3 and reserving rib 4 be not by disturbance, carries out anchoring and the overlap joint of reserving rib, it is ensured that cross foundation beam is connected with the reliable of basement bottom board by design and specification requirement;
F, laying monitoring point 6:
After basement bottom board 7 has been constructed, at the two ends of cross foundation beam, middle part and surrounding lay round end stainless steel settlement monitoring point (see Figure 15), by the feedback information of field monitoring data, the loads change occurred in construction process is played forewarning function; Tower crane sedimentation and tower body verticality measure the same cycle, and same frequency, tower crane displacement is reflected jointly by the two data.
Claims (5)
1. a stake girder construction integral type tower crane structure, it is characterised in that: this girder construction integral type tower crane structure comprises design engineering stake system, cross foundation beam (2), steel plate for sealing water (3), reserving rib (4) and basement bottom board (7);
Two design engineering stakes ((11,12)) form stake girder construction integral type tower crane with cross foundation beam, utilize the bearing capacity more than needed of design engineering stake to bear upper load and transfer the load to ground;
Described cross foundation beam (2) is cruciform, comprise coupling beam (22) two portions between tower crane cushion cap (21), stake, it is made up of cross foundation beam bed course (23) being positioned at successively in design engineering stake system, cross foundation beam reinforcing bar (24), the brick loose tool (25) that is positioned at cross foundation beam edge; Described cross foundation beam (2) and design engineering stake System forming stake girder construction integral type tower crane, pass to pile foundation for tower crane deadweight and other being erected to load, and is formed common by power body with basement bottom board, overall antidumping;
Steel plate for sealing water (3) for construction joint waterproof, sealing is weldingly fixed on cross foundation beam (2) and basement bottom board (7) junction, adopting L-type reinforcing bar to make the bracing frame of steel plate for sealing water, the short side weld of L-type reinforcing bar is on steel plate for sealing water;
For connect cross foundation beam and basement bottom board reserving rib (4) colligation at cross foundation beam reinforcing bar (24);
Utilize design engineering stake system (11,12), cross foundation beam (2) and basement bottom board (7) are built formation entirety jointly and forms a girder construction integral type tower crane structure; Tower crane base is arranged on the tower crane cushion cap (21) of cross foundation beam (2).
2. a kind of stake girder construction integral type tower crane structure according to claim 1, it is characterized in that: at cross foundation beam two ends, i.e. design engineering stake system (11,12) top, cross foundation beam (2) transverse axis, closing on of longitudinal axis direction, basement bottom board (7) is furnished with round end stainless steel settlement monitoring point (6) respectively, by the feedback information of field monitoring data, the loads change occurred in construction process is played forewarning function.
3. a stake girder construction integral type tower crane construction method, it it is the constructional method realizing stake girder construction integral type tower crane structure described in claim 1, it is characterized in that: this constructional method is with BIM technology solid modelling, assisting chooses premised on tower crane type and position, utilize the bearing capacity more than needed of design engineering stake, cast-in-situ steel reinforced concrete cross foundation beam is set between two design engineering stakes, and steel plate for sealing water and reserving rib are set between cross foundation beam and basement bottom board, cross foundation beam and basement bottom board are built jointly, form the common entirety by power, thus form a kind of novel stake girder construction integral type tower crane structure,
Its construction technology process is: scheme �� versatility basic design �� measurement and positioning �� excavation of foundation pit �� cushion construction �� assembling reinforcement �� build brick loose tool �� backfilling of earthwork �� installations steel plate for sealing water by laying bricks or stones settled by selected tower crane and colligation reserving rib �� casting concrete �� vertical tower �� basement bottom board construction �� sedimentation is observed and being come into operation; Its Specific construction step is:
A, preparation of construction:
Action comprises selected tower crane and settles scheme, carries out versatility basic design and measurement and positioning;
B, excavation of foundation pit:
B1, broken pile head:
Elevation line is caused a body by bracing wire, carries out cutting a hole clearly stake head with pneumatic pick, and namely cutter stops to the design above 100mm of absolute altitude; Within the scope of design absolute altitude 100mm, carefully cut smooth with hair clasp;
B2, soil excavation:
Soil excavation adopts a small-sized backhoe [shovel to excavate, and stops mechanical equivalent of light excavation when being excavated to the design above 300mm of absolute altitude, rest part with being manually excavated to design absolute altitude, and with digging with fortune;
C, making cross foundation beam:
C1, carry out cross foundation beam cushion construction:
By design requirements, checking an axis and determine cross foundation beam cushion cap bed-plate dimension skeletal lines, bed course sideline is the outer 100mm of cross foundation beam cushion cap brick loose tool;
C2, assembling reinforcement:
After cushion construction completes, when concrete strength reaches 1.2MPa, surface snap the line carries out cross beam cushion cap reinforcing bar binding by design;
C3, build brick loose tool by laying bricks or stones;
C4, backfilling of earthwork:
Carrying out backfilling of earthwork construction after brick loose tool has built 24 hours by laying bricks or stones, backfill soil needs tamping in layers, consolidates loose tool bearing capacity with soil body wall pressure;
C5, install steel plate for sealing water (3) and colligation reserving rib (4);
C6, casting concrete;
D, installation tower crane (5):
Reach after design requirements until concrete strength, carry out wall screw axis and size and check, check qualified after namely carry out tower crane installation;
E, basement bottom board (7) are constructed:
Build the concrete of basement base plate relevant to tower crane;
F, laying monitoring point (6).
4. a kind of stake girder construction integral type tower crane construction method according to claim 3, it is characterised in that: described A, the work of preparation of construction step comprise:
Scheme settled by A1, selected tower crane:
According to design paper and geologic prospect data and construction organization design document, utilize BIM technology application software, buildings entirety is carried out 3 D stereo modeling, draw the tentatively selected tower crane position of relative spatial location parameter and required tower crane model;
A2, versatility basic design:
1. technical parameter, engineering design file and the Force Calculation provided according to tower crane operation instruction, drafts cross foundation beam tower crane cushion cap (21) size;
2. again according to building three-dimensional stereo model provide technical parameter and engineering design parameter calculate, draw tower crane work and off working state under erect to load and upsetting moment;
3. according to the calculation of correlation formula checking computations design engineering pile ultimate bearing capacity of " Code for design of concrete structures " (GB50010), coupling beam between stake (22) cross section size and arrangement of reinforcement is determined according to checking computation results;
A3, measurement and positioning:
Carry out pilot measurement from buildings coordinate basis point or agent structure axial line control point, it is determined that the position of tower crane, arrange coordinate control point; Particularly: the coordinate control point of beam axis, stake.
5. a kind of stake girder construction integral type tower crane construction method according to claim 3, it is characterised in that:
The action of described F, laying monitoring point step is:
After basement bottom board has been constructed, at the two ends of cross foundation beam, middle part and surrounding lay round end stainless steel settlement monitoring point, by the feedback information of field monitoring data, the loads change occurred in construction process is played forewarning function; Tower crane sedimentation and tower body verticality measure the same cycle, and same frequency, tower crane displacement is reflected jointly by the two data.
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| CN106372302A (en) * | 2016-08-31 | 2017-02-01 | 浙江精工钢结构集团有限公司 | Tower crane automatic model selection and optimization system and method based on BIM (Building Information Modeling) technology |
| CN109138443A (en) * | 2018-09-03 | 2019-01-04 | 惠州德科达建筑工程技术有限公司 | Assembly method is built in a kind of building of steel section concrete |
| CN109577359A (en) * | 2018-11-24 | 2019-04-05 | 武汉建工集团股份有限公司 | A kind of stepped tower crane and construction method |
| CN111894031A (en) * | 2020-08-10 | 2020-11-06 | 中国建筑第八工程局有限公司 | Tower crane foundation and construction method thereof |
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| CN109138443A (en) * | 2018-09-03 | 2019-01-04 | 惠州德科达建筑工程技术有限公司 | Assembly method is built in a kind of building of steel section concrete |
| CN109577359B (en) * | 2018-11-24 | 2024-03-19 | 武汉建工集团股份有限公司 | Stepped tower crane foundation and construction method |
| CN109577359A (en) * | 2018-11-24 | 2019-04-05 | 武汉建工集团股份有限公司 | A kind of stepped tower crane and construction method |
| CN111894031A (en) * | 2020-08-10 | 2020-11-06 | 中国建筑第八工程局有限公司 | Tower crane foundation and construction method thereof |
| CN112211214A (en) * | 2020-09-16 | 2021-01-12 | 上海建工一建集团有限公司 | Construction method of beam-slab tower crane foundation structure |
| CN112456353A (en) * | 2020-10-14 | 2021-03-09 | 中国建筑第二工程局有限公司 | Movable arm tower crane fixed foundation construction method and movable arm tower crane structure |
| CN114045855A (en) * | 2021-09-30 | 2022-02-15 | 珠海十字门中央商务区建设控股有限公司 | Soft soil foundation large-span reinforced concrete beam construction method |
| CN114892735A (en) * | 2022-05-27 | 2022-08-12 | 青海送变电工程有限公司 | In-situ processing method for quality defects of pile foundation of power transmission tower |
| CN114892735B (en) * | 2022-05-27 | 2024-02-13 | 青海送变电工程有限公司 | In-situ processing method for quality defect of pile foundation of power transmission tower |
| CN115233726A (en) * | 2022-07-29 | 2022-10-25 | 陕西建工第三建设集团有限公司 | Tower crane foundation construction method in deep mucky soil area |
| CN115182340A (en) * | 2022-09-01 | 2022-10-14 | 中国建筑第五工程局有限公司 | Construction method of novel precast pile comprehensive tower crane pile under complex geological condition |
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