CN204780983U - Whole pre -buried major diameter bolt crowd structure of raft board basis high accuracy - Google Patents
Whole pre -buried major diameter bolt crowd structure of raft board basis high accuracy Download PDFInfo
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- CN204780983U CN204780983U CN201520397896.1U CN201520397896U CN204780983U CN 204780983 U CN204780983 U CN 204780983U CN 201520397896 U CN201520397896 U CN 201520397896U CN 204780983 U CN204780983 U CN 204780983U
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Abstract
The utility model relates to a whole pre -buried major diameter bolt crowd structure of raft board basis high accuracy, its characterized in that includes upper locating plate, lower floor's locating plate, bottom support, pre -buried rag bolt, connecting bolt, fine setting bolt and leveling bolt, upper and lower layer locating plate forms through connection plate and bolted connection equipment between by unit location steel sheet, sets up pre -buried rag bolt between the locating plate of upper and lower layer, and pre -buried rag bolt and upper locating plate be through fine setting bolted connection, is connected with lower floor locating plate anchor, setting up the leveling bolt between lower floor's locating plate and the bottom support and being connected, bottom support and concrete cushion are connected through buried bolt in advance. The utility model discloses can carry out three -dimensional dynamic adjustment to buried bolt in advance, ensure the accuracy of the optimal power flow and the elevation of bolt, realize that bolt crowd high accuracy is pre -buried, have better economic technology benefit.
Description
Technical field
The utility model relates to a kind of raft foundation high accuracy integral built-in large diameter bolt group structure.Belong to field of foundation treatment, be applicable to the pre-buried installation of raft plate of building basis high accuracy.
Background technology
Current power transmission and transformation institute, nuclear power station, all kinds of large industry equipment install the continuous increase comprising steel-structure factory building, all kinds of basis, especially the pre-embedded bolt of equipment Foundations is widely used, compared with traditional architecture, the pre-embedded bolt specification of this kind of building is many, quantity large, installation accuracy requires higher, indivedual bolt in Bolt will directly affect normal mounting and the debugging of various kinds of equipment once produce relatively large deviation, more likely affect and use in the future.
Common bolt embedment construction method mainly contains: the pre-buried method of bolt method of directly burring, locating template, shape steel bracket fixation and plant bottom case directly lay method etc.Bolt method of directly burring is fixed by the reinforcement welding of bolt and sole plate one by one, and constructing operation rate is low, and having welded rear bolt position can not adjust, and setting accuracy is poor, and can produce secondary deviation in concreting process; The pre-buried method of locating template is fixed on foundation forms at the bolt top lumps of wood or locating template, bottom reinforcing bar drawknot also welds, the use amount of this built-in process timber and template is large, is unsuitable for the pre-buried structure of the larger concrete structure of physical dimension and large scale equipment; Bolt is fixed on shape steel bracket pre-buried together by shape steel bracket fixation, namely fixes after installation of embedded parts completes, if produce deviation, follow-uply cannot to correct; Plant bottom case directly lays method first placement devices base, then carries out the installation of bolt according to plant bottom case spiro keyhole position, after-pouring concrete.For the Bolt integral built-in of main equipment, because floor space is large, bolt quantity is many and bolt required precision is high, above-mentioned several bolt embedment construction method is also inapplicable, easily causes the accident.
In sum, existing bolt embedment method has been difficult to meet the technical requirements of large diameter bolt group integral built-in construction in raft foundation, Given this, the large diameter bolt group pre-buried structure that a kind of pre-buried precision of invention is high, speed of application is fast, economic benefit is excellent is needed at present badly.Adopt high accuracy integral built-in large diameter bolt group structure can carry out Three-Dimensional Dynamic adjustment to pre-embedded bolt in raft foundation, can the pre-buried quality of significantly elevator bolt, accelerating construction progress, and there is certain economic technology benefit.
Summary of the invention
The purpose of this utility model is to provide the raft foundation high accuracy integral built-in large diameter bolt group structure and construction that a kind of speed of application is fast, bolt embedment precision is high, technical economic benefit is good.
For realizing above-mentioned technical purpose, the utility model have employed following technical scheme:
A kind of raft foundation high accuracy integral built-in large diameter bolt group structure, is characterized in that described structure comprises upper strata location-plate, lower floor's location-plate, bottom support bracket, pre-embedded anchoring bolts, connecting bolt, trimming bolt and leveling bolt; Upper and lower layer location-plate assembles formation by between cell location steel plate by gusset plate and bolt, between upper and lower layer location-plate, pre-embedded anchoring bolts is set, pre-embedded anchoring bolts is connected by trimming bolt with upper strata location-plate, with lower floor's location-plate anchor connection; Lower floor's location-plate with leveling bolt be set between bottom support bracket be connected, bottom support bracket is connected by pre-embedded bolt with concrete cushion.
Described cell location steel plate is designed to loop configuration or square structure according to laying requirement, surface is symmetrical arranged two pieces of gusset plate bonding pads, evenly link bolt hole is laid in bonding pad, cell location surface of steel plate evenly lays stone bolt spacing hole, and the cell location steel plate of upper strata location-plate is preset with multiple trimming bolt at radians such as stone bolt spacing hole surroundings.
When upper and lower layer location-plate adopts the monolithic construction without cell location steel plate when basic scale is less.
Adopt upper and lower two pieces to wait width between described cell location steel plate, the gusset plate that length is not less than 1.5 times of width is bolted to connection, and the bolt hole on gusset plate and the position, bolt hole hole on cell location steel plate, size are identical.
The lower end of described stone bolt is fixed in the stone bolt spacing hole of lower floor's location-plate, is fixed on spacing hole by upper and lower two nuts; Stone bolt upper end is fixed by the trimming bolt of upper unit fixing steel plate stone bolt spacing hole surrounding.
The described rectangular circulus of bottom support bracket upper surface, upper surface both sides evenly arrange connecting bolt spacing hole, bearing leg evenly arranges connecting screw rod and at bottom welding junction steel plate, junction steel plate evenly arranges pre embedded bolt spacing hole, bottom support bracket is connected with lower floor location-plate by leveling bolt and connecting bolt, is connected with concrete cushion by pre embedded bolt.
The construction method of above-mentioned raft foundation high accuracy integral built-in large diameter bolt group structure, its main construction sequence is as follows:
1) making of bottom support bracket and cell location steel plate: require the processing and fabricating carrying out bottom support bracket and cell location steel plate according to design drawing, transports after acceptance(check) and marches into the arena;
2) bottom support bracket is installed: before concrete cushion is built, first carry out measurement snap the line, determine the pre-buried position of pre-embedded bolt, after concrete cushion reaches design strength, is installed by bottom support bracket fixing by bolt pre-buried in bed course;
3) lower floor's location-plate is installed: first adjacent two module unit fixing steel plates are carried out anchoring docking by gusset plate, form overall lower floor location-plate, again the lower end of stone bolt is fixed on lower floor's location-plate, the setting height(from bottom) of stone bolt is adjusted by adjusting nut, the lower floor location-plate lifting that then will install bolt, on bottom support bracket, is tentatively connected and fixed by connecting bolt and leveling bolt and bottom support bracket;
4) bolt end face absolute altitude controls: after lower floor's location-plate installation, measure the actual elevation of each stone bolt on lower floor's location-plate with level gauge, by regulating leveling bolt to reduce alignment error, verifying errorless rear fastening nut and being fixed bolt;
5) upper strata location-plate is installed: first upper unit fixing steel plate is carried out assembling and form upper strata location-plate, after having assembled lift upper strata location-plate on stone bolt, then installs trimming bolt in each stone bolt upper end tentatively fixing;
6) bolt-center axis trimming: after the location-plate installation of upper strata, by adjusting each stone bolt upper end trimming bolt and lower end leveling bolt, in conjunction with transit and jack, make pre-embedded bolt centre deviation compound code requirement, after concreting completes, before initial set, carry out secondary adjustment;
7) raft foundation upper reinforcement colligation: reinforcing bar binding erection procedure is first bottom, rear upper strata, then prick wall column and indulge muscle, and bottom support bracket is welded with the cage of reinforcement in raft foundation, make it to become overall, guarantee that built-in fitting can not produce displacement;
8) raft foundation concreting: concrete adopts pumping construction, but takes artificial cloth at stone bolt periphery, in casting process, adopts transit to carry out dynamic monitoring to bolt axis;
9) recycling of upper strata location-plate and stone bolt Global Macros: after concrete final set, recycles the unloading of upper strata location-plate, and cleans out all stone bolt; and smear butter solid; tight parcel adhesive tape, the screw thread of protecting field foot bolt is not damaged, and prevents it from making moist and gets rusty.
The utility model has following feature and beneficial effect:
(1) structure adopts leveling bolt can carry out initial adjustment to the overall location-plate of lower floor, adjusts pre-embedded bolt vertical direction; By regulating trimming bolt to carry out accurate adjustment and fine setting, to the adjustment of pre-embedded bolt horizontal direction, achieving adjustment bolt being carried out to three-dimensional, improving the embedding precision of Bolt.
(2) location-plate can be set to monolithic and also can be assembled by cell location steel plate, gusset plate and bolt, utilizes integrally-built planar stability, and by arranging bolt positioning hole on location-plate, realizes bolt group integral built-in.
(3) top location-plate can be arranged on more than raft foundation concreting face, and raft foundation can be recycled top location-plate after having built, and reduces construction cost.
Accompanying drawing explanation
Fig. 1 is the utility model raft foundation high accuracy integral built-in large diameter bolt group structure schematic diagram;
Fig. 2 is the utility model positioning plate structure schematic diagram at the middle and upper levels;
Fig. 3 is trimming bolt structural representation in the utility model;
Fig. 4 is bottom support bracket structural representation in the utility model;
Fig. 5 is that in the utility model, auxiliary leveling hydraulic jack arranges schematic diagram.
In figure: 1-concrete cushion, 2-bottom support bracket, 3-connecting screw rod, 4-pre-embedded bolt, 5-lower floor location-plate, 6-connecting bolt, 7-leveling bolt, 8-gusset plate, 9-gusset plate connecting bolt, 10-stone bolt, 11-nut, 12-pad, 13-basis external mold, 14-upper strata location-plate, 15-trimming bolt, 16-raft foundation concreting face, 17-pre embedded bolt spacing hole.18-connecting bolt spacing hole, 19-junction steel plate, 20-assists leveling jack.
Detailed description of the invention
The concrete pouring construction technical requirements of bed course and raft foundation in present embodiment, basis is outer touches construction technical requirement, the precasting process etc. of involved bolt repeats no more, and emphasis sets forth the embodiment of the raft foundation high accuracy integral built-in large diameter bolt group structure construction related to of the present utility model.
Fig. 1 is the utility model raft foundation high accuracy integral built-in large diameter bolt group structure schematic diagram, Fig. 2 is the utility model positioning plate structure schematic diagram at the middle and upper levels, Fig. 3 is trimming bolt structural representation in the utility model, Fig. 4 is bottom support bracket structural representation in the utility model, and Fig. 5 is that in the utility model, auxiliary leveling hydraulic jack arranges schematic diagram.With reference to the raft foundation high accuracy integral built-in large diameter bolt group structure shown in Fig. 1, primarily of compositions such as lower floor's location-plate 5, upper strata location-plate 14, bottom support bracket 2, stone bolt 10, connecting bolt 6, trimming bolt 15, leveling bolts 7, the present embodiment is described for the annular element fixing steel plate of D=1000mm:
As shown in Figure 2, separate type annular upper strata location-plate 14 external diameter is 1000mm, internal diameter is 600mm, along a diameter symmetry, gusset plate 8 fixed area is set, evenly laying 4 diameters in both sides gusset plate 8 FX is the link bolt hole of 12mm, and the stone bolt spacing hole that 10 groups of diameters are 24mm is evenly laid in all the other positions, upper strata location-plate 14 surface, often organizes 2, and stone bolt cap is welded on stone bolt spacing hole, the radians such as stone bolt cap side preset 3 trimming bolts 15.Lower floor's location-plate 5 structure is similar to upper strata location-plate 14, and the main distinction is without the need to welding stone bolt cap on stone bolt spacing hole, and to set up a diameter be the bolt hole of 12mm often organizing each 80mm place, both sides inside and outside stone bolt spacing hole.
Adopt upper and lower two pieces to wait width between adjacent two module unit fixing steel plates, the gusset plate 8 that length is not less than 1.5 times of width is fixed by gusset plate connecting bolt 9, and gusset plate 8 setting-out together with cell location steel plate makes, and ensures the uniformity of spiro keyhole position, diameter.
As shown in Figure 4, the equal leg angle of bottom support bracket 2 Cai ∟ 50mm × 50mm × 5mm is welded, the rectangular circulus of bottom support bracket 2 upper surface, long 600mm, wide 300mm, the connecting bolt spacing hole 18 of preset diameters 24mm on every bar minor face; Four corners are welded with the leg that You ∟ 50mm × 50mm × 5mm equal leg angle is made into, leg height 200mm, each leg uniform welding 4 connecting screw rods 3; Be welded with the junction steel plate 19 that specification is 200mm × 200mm × 8mm bottom leg, junction steel plate 19 surface should be smooth, and edge presets the pre embedded bolt spacing hole 17 of 4 diameter 8mm.
When concrete cushion 1 is built, according to design drawing setting-out, the pre-embedded bolt 4 of pre-buried diameter 8mm, after concrete cushion 1 maintenance completes, is mounted to design attitude by bottom support bracket 2 by pre-embedded bolt 4.
After bottom support bracket 2 installation, adjacent two module unit fixing steel plates are spliced into entirety by gusset plate 8, form lower floor's location-plate 5, after lower floor's location-plate 5 has been assembled, the lower end of stone bolt 10 is fixed in the bolt positioning hole on lower floor's location-plate 5, bolt is installed and is fixed on bolt spacing hole by upper and lower two nuts 11, and the height of individually foot bolt 10 is determined by adjusting nut 11, again the lower floor's location-plate 5 installing bolt is lifted on bottom support bracket 2, connecting bolt 6 is installed outside bottom support bracket 2, leveling bolt 7 is installed in inner side, by the alignment error regulating leveling bolt 7 to reduce each stone bolt 10.
The assembling of upper strata location-plate 14 is identical with lower floor location-plate 5 packaging technology, after upper strata location-plate 14 has been assembled, lifting is on stone bolt 10, guarantee that absolute altitude meets the requirements by adjusting nut, and pass through trimming bolt 15 and the auxiliary leveling jack 20 of each stone bolt 10 surrounding of adjustment, make stone bolt 10 centre deviation meet designing requirement.Then carry out the colligation of raft foundation upper reinforcement, and install basic external mold 13.
Basis external mold 13 has installed after-pouring raft foundation concrete, after concreting completes, before initial set, reexamines the center line of stone bolt 10 with transit, and utilizes trimming bolt 15 to carry out secondary adjustment, reduces error.After having constructed, superordinate whole location-plate is removed, reclaims, reused, and all stone bolt 10 are cleaned out, and smear butter solid, adopt adhesive tape closely to wrap up.
The construction key step of raft foundation high accuracy integral built-in large diameter bolt group structure is as follows:
1) making of bottom support bracket 2 and cell location steel plate: require the processing and fabricating carrying out bottom support bracket 2 and cell location steel plate according to design drawing, transports after acceptance(check) and marches into the arena.Wherein should to carry out examination assembled for cell location steel plate.
2) bottom support bracket 2 is installed: before concrete cushion is built, and first carries out measurement snap the line, determines the pre-buried position of pre-embedded bolt 4, after concrete cushion 1 reaches design strength, installs fixing by pre-embedded bolt in bed course 4 by bottom support bracket 2.
3) lower floor's location-plate is installed: first adjacent two module unit fixing steel plates are carried out anchoring docking by gusset plate 8, form lower floor's location-plate 5, again the lower end of stone bolt 10 is fixed on lower floor's location-plate 5, the setting height(from bottom) of stone bolt 10 is adjusted by adjusting nut, then the lower floor's location-plate 5 installing bolt is lifted on bottom support bracket 2, be tentatively connected and fixed with bottom support bracket 2 by connecting bolt 6 and leveling bolt 7.
4) bolt end face absolute altitude controls: after lower floor's location-plate 5 installation, measure the actual elevation of each stone bolt 10 on lower floor's location-plate 5 with level gauge, by regulating leveling bolt 7 to reduce alignment error, verifying errorless rear fastening nut and being fixed bolt.
5) upper strata location-plate is installed: first upper strata fixing steel plate is carried out assembling and form upper strata location-plate 14, lifted by upper strata location-plate 14 on stone bolt 10 after having assembled, and then installs trimming bolt in each stone bolt 10 upper end tentatively fixing.
6) bolt-center axis trimming: after upper strata location-plate 14 installation, by adjusting each stone bolt 10 upper end trimming bolt 15 and lower end leveling bolt 7, in conjunction with transit and auxiliary leveling jack 20, make stone bolt 10 centre deviation compound code requirement, after concreting completes, before initial set, carry out secondary adjustment.
7) raft foundation upper reinforcement colligation: reinforcing bar binding erection procedure is first bottom, rear upper strata, then prick wall column and indulge muscle, and bottom support bracket is welded with the cage of reinforcement in raft foundation, make it to become overall, guarantee that built-in fitting can not produce displacement.
8) raft foundation concreting: concrete adopts pumping construction, but takes artificial cloth at stone bolt 10 periphery, in casting process, adopts transit to carry out dynamic monitoring to stone bolt 10 axis.
10) recycling of upper strata location-plate and stone bolt Global Macros: after concrete final set; upper strata location-plate 14 is unloaded recycling; and all stone bolt 10 are cleaned out; and smear butter solid; tight parcel adhesive tape; the screw thread of protecting field foot bolt 10 is not damaged, and prevents it from making moist and gets rusty.
Claims (5)
1. a raft foundation high accuracy integral built-in large diameter bolt group structure, is characterized in that described structure comprises upper strata location-plate, lower floor's location-plate, bottom support bracket, pre-embedded anchoring bolts, connecting bolt, trimming bolt and leveling bolt; Upper and lower layer location-plate assembles formation by between cell location steel plate by gusset plate and bolt, between upper and lower layer location-plate, pre-embedded anchoring bolts is set, pre-embedded anchoring bolts is connected by trimming bolt with upper strata location-plate, with lower floor's location-plate anchor connection; Lower floor's location-plate with leveling bolt be set between bottom support bracket be connected, bottom support bracket is connected by pre-embedded bolt with concrete cushion.
2. raft foundation high accuracy integral built-in large diameter bolt group structure according to claim 1, it is characterized in that described cell location steel plate is designed to loop configuration or square structure according to laying requirement, surface is symmetrical arranged two pieces of gusset plate bonding pads, evenly link bolt hole is laid in bonding pad, cell location surface of steel plate evenly lays stone bolt spacing hole, and the cell location steel plate of upper strata location-plate is preset with multiple trimming bolt at radians such as stone bolt spacing hole surroundings.
3. raft foundation high accuracy integral built-in large diameter bolt group structure according to claim 1, it is characterized in that between described cell location steel plate, adopting upper and lower two pieces to wait width, the gusset plate that length is not less than 1.5 times of width is bolted to connection, and the bolt hole on gusset plate and the position, bolt hole hole on cell location steel plate, size are identical.
4. raft foundation high accuracy integral built-in large diameter bolt group structure according to claim 1, is characterized in that the lower end of described stone bolt is fixed in the stone bolt spacing hole of lower floor's location-plate, is fixed on spacing hole by upper and lower two nuts; Stone bolt upper end is fixed by the trimming bolt of upper strata location-plate stone bolt spacing hole surrounding.
5. raft foundation high accuracy integral built-in large diameter bolt group structure according to claim 1, it is characterized in that the described rectangular circulus of bottom support bracket upper surface, upper surface both sides evenly arrange connecting bolt spacing hole, bearing leg evenly arranges connecting screw rod and at bottom welding junction steel plate, junction steel plate evenly arranges pre embedded bolt spacing hole, bottom support bracket is connected with lower floor location-plate by leveling bolt and connecting bolt, is connected with concrete cushion by pre embedded bolt.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520397896.1U CN204780983U (en) | 2015-06-10 | 2015-06-10 | Whole pre -buried major diameter bolt crowd structure of raft board basis high accuracy |
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| CN201520397896.1U CN204780983U (en) | 2015-06-10 | 2015-06-10 | Whole pre -buried major diameter bolt crowd structure of raft board basis high accuracy |
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| CN204780983U true CN204780983U (en) | 2015-11-18 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297769A (en) * | 2015-12-02 | 2016-02-03 | 国电大渡河流域水电开发有限公司 | Screeder used for installation of foundation |
| CN105525625A (en) * | 2016-01-19 | 2016-04-27 | 中建八局第三建设有限公司 | Construction method and device of pre-embedded bolts of fixed steel column base |
| CN105750798A (en) * | 2016-03-28 | 2016-07-13 | 国网浙江省电力公司金华供电公司 | Foundation bolt pre-burying auxiliary welding device |
| CN108532773A (en) * | 2018-07-06 | 2018-09-14 | 中国人民解放军63926部队 | A kind of device pre-buried suitable for vertical shaft bar shaped keel high-precision（Monoblock type）And localization method |
| CN110409854A (en) * | 2019-08-30 | 2019-11-05 | 山西五建集团有限公司 | A kind of foundation bolt is clustered to assembling installation mold and method |
| CN110939830A (en) * | 2019-10-25 | 2020-03-31 | 上海宝冶冶金工程有限公司 | Device and method for quickly prefabricating and fixing embedded bolt |
| CN114934413A (en) * | 2022-06-29 | 2022-08-23 | 中核华辰建筑工程有限公司 | Group ground steel rail construction method |
| CN115506397A (en) * | 2022-09-23 | 2022-12-23 | 中国化学工程第六建设有限公司 | Construction method for accurately positioning foundation bolt box |
-
2015
- 2015-06-10 CN CN201520397896.1U patent/CN204780983U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297769A (en) * | 2015-12-02 | 2016-02-03 | 国电大渡河流域水电开发有限公司 | Screeder used for installation of foundation |
| CN105525625A (en) * | 2016-01-19 | 2016-04-27 | 中建八局第三建设有限公司 | Construction method and device of pre-embedded bolts of fixed steel column base |
| CN105750798A (en) * | 2016-03-28 | 2016-07-13 | 国网浙江省电力公司金华供电公司 | Foundation bolt pre-burying auxiliary welding device |
| CN105750798B (en) * | 2016-03-28 | 2017-07-21 | 国网浙江省电力公司金华供电公司 | Embedding anchor bolts auxiliary welding equipment |
| CN108532773A (en) * | 2018-07-06 | 2018-09-14 | 中国人民解放军63926部队 | A kind of device pre-buried suitable for vertical shaft bar shaped keel high-precision（Monoblock type）And localization method |
| CN108532773B (en) * | 2018-07-06 | 2023-08-15 | 中国人民解放军63926部队 | Device (integral type) suitable for high-precision pre-embedding of vertical shaft bar-shaped keels and positioning method |
| CN110409854A (en) * | 2019-08-30 | 2019-11-05 | 山西五建集团有限公司 | A kind of foundation bolt is clustered to assembling installation mold and method |
| CN110939830A (en) * | 2019-10-25 | 2020-03-31 | 上海宝冶冶金工程有限公司 | Device and method for quickly prefabricating and fixing embedded bolt |
| CN114934413A (en) * | 2022-06-29 | 2022-08-23 | 中核华辰建筑工程有限公司 | Group ground steel rail construction method |
| CN115506397A (en) * | 2022-09-23 | 2022-12-23 | 中国化学工程第六建设有限公司 | Construction method for accurately positioning foundation bolt box |
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