CN105220705A - A kind of spring vibration-isolated foundation column cap construction levelling device and construction method thereof - Google Patents
A kind of spring vibration-isolated foundation column cap construction levelling device and construction method thereof Download PDFInfo
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- CN105220705A CN105220705A CN201510554492.3A CN201510554492A CN105220705A CN 105220705 A CN105220705 A CN 105220705A CN 201510554492 A CN201510554492 A CN 201510554492A CN 105220705 A CN105220705 A CN 105220705A
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- angle frame
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Abstract
The present invention discloses a kind of spring vibration-isolated foundation column cap construction levelling device and construction method thereof, be included in the circle angle frame that foundation columns head die head is arranged, the one side of described angle frame is arranged in parallel along the sidewall of described die head, another side described template end face capital absolute altitude place's horizontal arrangement and point to the inner side of described template; During to described foundation columns head mould plate concreting, described concrete end face flushes with the horizontal top surface of described angle frame, by using floating rule along the planeness of the described basic column cap of the effect that strikes off guarantee of described angle frame horizontal sides.The present invention substantially increases the planeness of foundation columns head surface, improves spring vibration isolation installation quality, for the steady safe operation of equipment lays the first stone, avoids the secondary that planeness do not reach requirement and does over again, be improved in engineering economy and on the construction period.
Description
Technical field
The present invention relates to spring vibration-isolated foundation technical field of construction, a kind of spring vibration-isolated foundation column cap construction levelling device of specific design and construction method thereof.
Background technology
At present, for the industrial premises main equipment using high-rating generator, extensively spring vibration-isolated foundation is adopted.This base form mainly arranges the Vertical Spring vibration isolator of some on generator between basic top platen and lower support structure, vibration major part when generating set is run is isolated by spring vibration-isolator, is unlikely to have an impact to surrounding structure.The work progress of spring vibration-isolated foundation is, first perform the basic column cap of substructure, basic column cap is placed the initial spring vibration-isolator in contraction state, and around spring vibration-isolator, perform the temporary support framework contour with spring vibration-isolator, steel plate is set up afterwards on temporary support framework, and upper basic platform template, and concreting performs basic platform.When corresponding construction all reaches design strength, and after the upper loads such as all motors are all applied to basic platform, discharge all spring vibration-isolator, make spring vibration-isolator bear the load on top, and remove temporary support framework.
In this process, the installation accuracy of code requirement spring vibration isolation system is not more than 1mm/1000mm.In order to reach this standard, the planeness of basic column cap also should reach identical standard.Traditional construction method is, adopts common template to build basic column cap, after basic column cap reaches setting intensity, adopts sander floating.Due to its surface of basic column cap very out-of-flatness that common templates is built, error, generally at about 5mm/1000mm, therefore requiring a great deal of time by using sander to carry out floating, incuring loss through delay the construction period, bringing heavy losses to engineering economy.
Summary of the invention
For solving the problem, the invention provides a kind of spring vibration-isolated foundation column cap construction levelling device and construction method thereof, this device can ensure that the basic column cap after building has higher planeness, reduces and uses sander to carry out the floating engineering time.
For achieving the above object, the present invention adopts following technical scheme:
A kind of spring vibration-isolated foundation column cap construction levelling device, be included in the circle angle frame that foundation columns head die head is arranged, the one side of described angle frame is arranged in parallel along the sidewall of described die head, another side described template end face capital absolute altitude place's horizontal arrangement and point to the inner side of described template; During to described foundation columns head mould plate concreting, described concrete end face flushes with the horizontal top surface of described angle frame, by using floating rule along the planeness of the described basic column cap of the effect that strikes off guarantee of described angle frame horizontal sides.
The rigidity of common templates and planeness are all lower, cannot bear corresponding pressure, easily produce inhomogeneous deformation, and do not reach the effect struck off when using floating rule to strike off.The angle frame that one circle has enough rigidity is set at die head, inhomogeneous deformation can not be produced because of the pressure by floating rule, and the planeness of angle frame is better, also can reach the ideal effect struck off.The planeness of common templates being built to face, the rear foundation columns crown is about 5mm/1000mm, occur that the area at uneven place is very large, and for occurring that the process of recess is more difficult, workmanship is difficult to reach guarantee.And after using this device, the planeness in face, the foundation columns crown is 2mm/1000mm, and occur the area at uneven place be greatly less than common templates under uneven area, almost there is no recess, saving a large amount of engineering time using sander floating, while reduction of erection time, ensure construction quality.
On the sidewall of described angle frame, be provided with vertical bending reinforcing steel bar at spacing intervals, the side edge being fixed on described angle frame of described vertical bending reinforcing steel bar, the end of another side is provided with time hook of 180 degree, and both sides are at right angles arranged and are in same perpendicular.
In the horizontal sides of described angle frame, be provided with horizontal buckling reinforcing bar at spacing intervals, described horizontal buckling reinforcing bar while be fixed on described angle frame horizontal sides inside, another side points to the inner side of described foundation columns head mould plate, has the obtuse angle of 165 degree and be in same perpendicular between both sides.
The design of bending reinforcing steel bar, be convenient to fix with the reinforcing bar in foundation columns head mould plate on the one hand, increase the overall performance of structure, increase stressed stability, bending reinforcing steel bar plays anchorage effect on the other hand, angle frame is avoided to be separated with concrete, to meet the shock effect of upper motor group to the mechanical requirements of foundation columns header structure.The structure design of vertical bending reinforcing steel bar and horizontal buckling reinforcing bar, corresponding with the structural requirement of specification to concrete reinforcement, be convenient to the connection of reinforcing bar, and together form the embedded bar of structure, increase the stress performance of structure.
Described horizontal buckling reinforcing bar and described vertical bending reinforcing steel bar are in same plane, and one_to_one corresponding.
The diameter of described horizontal buckling reinforcing bar is greater than described vertical bending reinforcing steel bar.
The end face of basis column cap is direct stress surface, adopts the larger reinforcing bar of diameter more to meet the loading characteristic of structure, vertical bending reinforcing steel bar stressed less, therefore adopts the reinforcing bar that diameter is less, to reach quality and the economic coordinating and unifying.
A described determining deviation is 200mm.
A construction method for spring vibration-isolated foundation column cap construction levelling device, comprises the following steps:
Step 1: by the corresponding angle frame of dimensioned of foundation columns head mould plate top surface;
Step 2: after the installation of foundation columns head mould sheet frame, arrange the described angle frame of a circle in the relevant position at described foundation columns head mould sheet frame top, the horizontal top surface of described angle frame is positioned at column cap absolute altitude place;
Step 3: concreting, before described concrete initial set, forces the end face of described angle frame to be struck off by described concrete with floating rule;
Step 4: use the concrete of sander to the region of placing spring vibration-isolator to carry out levelling.
In described step 1, weld bending reinforcing steel bar at the desired location of angle frame by arrangement requirement, in described step 2, described bending reinforcing steel bar is connected with concrete reinforcement after having arranged by described angle frame.
In described step 2, use the absolute altitude of level gauge to described angle frame to position, use spirit level to carry out levelling to the levelness of described angle frame.
In described step 4, be some grids by described Region dividing, each little lattice use the planeness of level gauge to check, for the little lattice that planeness exceeds standard, use the independent grinding process of sander.
In traditional levelling work of basic column cap, the rough phenomenon of concrete ubiquity of column cap end face, needs to carry out large-area grinding process, wastes a large amount of engineering times.Greatly improve according to the foundation columns crown surface evenness after this method construction, most areas meets the requirement of planeness, therefore being grid by Region dividing, for meeting the region of planeness without the need to grinding process, only carrying out polishing for respective regions.Greatly save the working time, increase work efficiency.
Beneficial effect of the present invention is:
Substantially increase the planeness of foundation columns head surface, improve spring vibration isolation installation quality, for the steady safe operation of equipment lays the first stone, avoid the secondary that planeness do not reach requirement and do over again, be improved in engineering economy and on the construction period.
Accompanying drawing explanation
Fig. 1 is levelling device sectional drawing;
Fig. 2 is levelling device elevation;
Fig. 3 is the levelling device top view of installation;
Fig. 4 is the levelling device elevation of installation;
In figure, 1, vertically bending reinforcing steel bar, 2, horizontal buckling reinforcing bar, 3, angle frame, 4, levelling device, 5, basic column cap.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
As shown in Figure 1 to Figure 4, a kind of spring vibration-isolated foundation column cap construction levelling device:
Arrange a circle angle frame 3 at basic column cap 5 die head, angle frame 3 adopts angle steel ∠ 75, and the one side of angle frame 3 is arranged in parallel along the sidewall of die head, another side template end face capital absolute altitude place's horizontal arrangement and point to the inner side of template; During to basic column cap 5 template concreting, concrete end face flushes with the horizontal plane of angle frame 3, by using floating rule along the planeness of the basic column cap 5 of the effect that strikes off guarantee of angle frame 3 horizontal sides.
On the sidewall and horizontal sides of angle frame 3, be provided with vertical bending reinforcing steel bar 1 and horizontal buckling reinforcing bar 2 every 200mm, vertical bending reinforcing steel bar 1 adopts
round steel, it is fixed on the side edge of angle frame 3, and length is 80mm, the end of another side be provided with 180 degree return hook, length is 120mm, and both sides are at right angles arranged and are in same perpendicular.Horizontal buckling reinforcing bar 2 adopts
round steel, it is fixed on inside the horizontal sides of angle frame 3, and length is 60mm, and another side points to the inner side of basic column cap 5 template, and length is 280mm, has the obtuse angle of 165 degree and be in same perpendicular between both sides.
Horizontal buckling reinforcing bar 2 and vertical bending reinforcing steel bar 1 are in same plane, and one_to_one corresponding.
Angle frame 3, vertically bending reinforcing steel bar 1 and horizontal buckling reinforcing bar 2 form levelling device 4 jointly.
The construction method of spring vibration-isolated foundation column cap construction levelling device 4 is:
(1) requirement is intercepted by design
with
reinforcing bar, is processed into vertical bending reinforcing steel bar 1 and the horizontal buckling reinforcing bar 2 of shape as shown in the figure, is welded to connect, longitudinally spacing 200mm with angle steel.
(2) as shown in Figure 3, according to spring vibration-isolated foundation column cap 5 perimeter dimension welding levelling device 4, the surface finish after levelling device 4 has welded is not more than 1mm/1000mm.
(3) levelling device 4 is placed to basic column cap 5 tip position, device surrounding and basic column cap 5 exterior sheathing are close to, and are welded and fixed.Use the absolute altitude of level gauge to levelling device 4 to position, make the horizontal top surface of angle frame 3 be positioned at column cap absolute altitude place.The levelness of spirit level to described angle frame 3 is used to carry out levelling.
(4) before basic column cap 5 concrete initial set, according to the accurate levelling basic column cap 5 end face absolute altitude of levelling device 4 absolute altitude Horizontal scrapping rule.
(5) concrete of sander to the region of placing spring vibration-isolator is used to carry out levelling.Leveling method is: be some small grid by described Region dividing, and each small grid uses level gauge to check planeness, for the little lattice that planeness exceeds standard, uses the independent grinding process of sander.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (10)
1. a spring vibration-isolated foundation column cap construction levelling device, it is characterized in that: be included in the circle angle frame that foundation columns head die head is arranged, the one side of described angle frame is arranged in parallel along the sidewall of described die head, another side described template end face capital absolute altitude place's horizontal arrangement and point to the inner side of described template; During to described foundation columns head mould plate concreting, described concrete end face flushes with the horizontal top surface of described angle frame, by using floating rule along the planeness of the described basic column cap of the effect that strikes off guarantee of described angle frame horizontal sides.
2. a kind of spring vibration-isolated foundation column cap construction levelling device according to claim 1, it is characterized in that: on the sidewall of described angle frame, be provided with vertical bending reinforcing steel bar at spacing intervals, described vertical bending reinforcing steel bar while be fixed on the side edge of described angle frame, the end of another side is provided with time hook of 180 degree, and both sides are at right angles arranged and are in same perpendicular.
3. a kind of spring vibration-isolated foundation column cap construction levelling device according to claim 2, it is characterized in that: in the horizontal sides of described angle frame, be provided with horizontal buckling reinforcing bar at spacing intervals, described horizontal buckling reinforcing bar while be fixed on described angle frame horizontal sides inside, another side points to the inner side of described foundation columns head mould plate, has the obtuse angle of 165 degree and be in same perpendicular between both sides.
4. a kind of spring vibration-isolated foundation column cap construction levelling device according to claim 3, is characterized in that: described horizontal buckling reinforcing bar and described vertical bending reinforcing steel bar are in same plane, and one_to_one corresponding.
5. a kind of spring vibration-isolated foundation column cap construction levelling device according to claim 3, is characterized in that: the diameter of described horizontal buckling reinforcing bar is greater than described vertical bending reinforcing steel bar.
6. a kind of spring vibration-isolated foundation column cap construction levelling device according to claim 3, is characterized in that: a described determining deviation is 200mm.
7. a construction method for spring vibration-isolated foundation column cap construction levelling device, is characterized in that, comprise the following steps:
Step 1: by the corresponding angle frame of dimensioned of foundation columns head mould plate top surface;
Step 2: after the installation of foundation columns head mould sheet frame, arrange the described angle frame of a circle in the relevant position at described foundation columns head mould sheet frame top, the horizontal top surface of described angle frame is positioned at column cap absolute altitude place;
Step 3: concreting, before described concrete initial set, forces the end face of described angle frame to be struck off by described concrete with floating rule;
Step 4: use the concrete of sander to the region of placing spring vibration-isolator to carry out levelling.
8. the construction method of a kind of spring vibration-isolated foundation column cap construction levelling device according to claim 7, it is characterized in that: in described step 1, bending reinforcing steel bar is welded by arrangement requirement at the desired location of angle frame, in described step 2, after described angle frame has been arranged, described bending reinforcing steel bar is connected with concrete reinforcement.
9. the construction method of a kind of spring vibration-isolated foundation column cap construction levelling device according to claim 7, it is characterized in that: in described step 2, use the absolute altitude of level gauge to described angle frame to position, use spirit level to carry out levelling to the levelness of described angle frame.
10. the construction method of a kind of spring vibration-isolated foundation column cap construction levelling device according to claim 7, it is characterized in that: in described step 4, be some grids by described Region dividing, each little lattice use the planeness of level gauge to check, for the little lattice that planeness exceeds standard, use the independent grinding process of sander.
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| CN201510554492.3A CN105220705A (en) | 2015-09-01 | 2015-09-01 | A kind of spring vibration-isolated foundation column cap construction levelling device and construction method thereof |
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| CN201510554492.3A CN105220705A (en) | 2015-09-01 | 2015-09-01 | A kind of spring vibration-isolated foundation column cap construction levelling device and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113531034A (en) * | 2021-07-14 | 2021-10-22 | 哈尔滨电机厂有限责任公司 | Elastic device for upper frame of generator motor |
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| CN113531034A (en) * | 2021-07-14 | 2021-10-22 | 哈尔滨电机厂有限责任公司 | Elastic device for upper frame of generator motor |
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