CN112551395A - Tower crane installation structure and correction method for installation inclination caused by foundation inclination - Google Patents
Tower crane installation structure and correction method for installation inclination caused by foundation inclination Download PDFInfo
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- CN112551395A CN112551395A CN202011373235.7A CN202011373235A CN112551395A CN 112551395 A CN112551395 A CN 112551395A CN 202011373235 A CN202011373235 A CN 202011373235A CN 112551395 A CN112551395 A CN 112551395A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
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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
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D35/00—Straightening, lifting, or lowering of foundation structures or of constructions erected on foundations
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Abstract
The invention discloses a tower crane mounting structure and a method for correcting the mounting inclination of a standard joint caused by the inclination of a foundation, wherein the tower crane structure comprises a standard reinforced joint main limb and a lengthened steel main limb, the lower end of the tower crane structure is provided with a foundation joint support, and the lower end of the foundation joint support is embedded on a concrete bearing platform; the correcting method comprises the steps of measuring the top surface level of a concrete bearing platform of the tower crane; measuring the elevation of the base section support; keeping the size of a standard reinforced joint steel main limb unchanged, taking the other three steel main limbs as lengthened steel main limbs, and lengthening according to a height difference value measured at the corresponding position of a foundation joint supporting leg and an elevation datum plane, so that the lengthening values of the other steel main limbs are the same as the measured height difference value; welding reinforcing joints on the same horizontal plane on the top surfaces of the four steel main limbs; installing a reinforcing section according to the corresponding position of the base section support and the main limb of the reinforcing section; the construction is convenient, and the horizontal installation of the standard section of the tower crane is ensured; the weak point of the main limb caused by uneven stress of the reinforced joint is avoided; the mounting precision is high; and the cost for rebuilding the tower crane foundation is reduced.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a tower crane installation structure and a correction method for installation inclination caused by foundation inclination.
Background
At present, the tower crane foundations of most projects are in a rectangular concrete bearing platform or a rectangular concrete bearing platform and pile foundation form, and the tower crane foundations and the tower crane are connected with a tower crane standard section through foundation section pre-embedding or foundation bolts embedding. The installation perpendicularity of the upper tower crane standard knot is directly influenced after the tower crane foundation or the foundation embedded knot is inclined, namely, the constructed tower crane foundation part cannot be guaranteed to be horizontal, the perpendicularity deviation can occur in the installation of the upper tower crane standard knot, and the inclination degree can be larger and larger along with the increase of the height, so that the safe use of the tower crane is influenced.
The first standard section which is pre-embedded in the tower crane concrete bearing platform and connected with the foundation is usually a reinforcing section. Under the general condition, a tower crane assembling and disassembling unit can continuously correct the inclination of a tower body by increasing a steel gasket between each section of standard joint on one bent side, so that the perpendicularity of the tower body is gradually corrected to be within an error allowable range, but the method cannot timely correct the inclination condition of a first reinforcing joint at the bottom of the tower crane, the stress load of a weak point at the bottom is increased, and a main limb steel structure frame of the reinforcing joint is easy to bend, twist and shear damage.
Disclosure of Invention
The invention provides a tower crane installation structure and a method for correcting installation inclination of the tower crane installation structure caused by foundation inclination, which are used for solving the problems in the prior art and avoiding the situation that a tower crane standard knot cannot be horizontally installed due to inclination of a tower crane foundation or a pre-buried knot of the tower crane foundation.
The utility model provides a tower crane mounting structure, includes the tower crane structure, the tower crane structure includes that standard dimension's standard is strengthened festival main limb (2) and is lengthened main limb of steel (3), the lower extreme of tower crane structure sets up to base festival support (1), and the lower extreme installation of base festival support (1) is buried underground on tower crane concrete cushion cap (4).
In the above scheme, preferably, the lower end of the foundation section support (1) is provided with a support leg, and the lower end of the support leg is embedded in the concrete bearing platform (4) to form a foundation embedded section.
The method for correcting the standard knot installation inclination caused by the foundation inclination of the tower crane installation structure comprises the following steps,
horizontally measuring the top surface of the tower crane concrete bearing platform (4) which is constructed, reaches the design strength and has a stable foundation structure;
measuring the elevation of the foundation section support (1) to obtain a support horizontal elevation control line (5);
according to height difference data measured by a tower crane foundation on a construction site, a steel pipe truss main limb with a standard size is reserved as a standard reinforcing joint main limb (2), so that the size of the steel pipe truss main limb is kept unchanged, and the steel pipe truss main limb is arranged on a base part with the highest elevation; the other three steel pipe main limbs are used as lengthened steel main limbs (3) and are lengthened according to the corresponding position relation with the elevation reference base and the measured height difference (6), so that the lengthening values of the other steel pipe main limbs are the same as the measured height difference (6);
marking after blanking of each steel member of the reinforcing section is finished, and measuring and rechecking the size of each steel member of the reinforcing section, so that the reinforcing section formed by welding and processing can be matched with the tower crane foundation section, and the butt joint error is controlled within the range of the preset standard requirement;
except that the size of the main lengthened steel limb (3) is changed, the welding connection mode of the rest truss steel pipes for reinforcing and connecting the four main limbs is the same as that of a standard tower crane reinforcing joint.
In the above scheme, it is preferable that when the elevation of the foundation section support (1) is measured, the elevation of the top surface of the upper support leg of the foundation section support (1) is measured in a tower crane foundation form adopting a foundation embedded section.
More preferably, when the elevation of the top surface of the supporting leg is measured on the foundation section support (1), the inclination condition of the foundation section support (1) is measured by using a horizontal ruler or a level gauge, the supporting leg with the highest exposed elevation of the foundation section is found, the elevation is highest, the supporting leg is used as a horizontal plane reference, and the height difference value (6) of the top surface of the supporting leg is measured.
It can also be preferred that, when measuring the elevation of the foundation section support (1), to the tower crane foundation form that adopts the pre-buried festival of basis, the elevation of the top surface of the upper connection lug ring of foundation section support (1) is measured.
More preferably, when measuring the elevation that exposes on basic festival support (1) and connect earring top surface, earlier with the slope condition of level bar or spirit level measurement basic festival support (1), find the elevation is highest connect earring, with the elevation is highest connect earring be the horizontal plane benchmark, measure remaining the difference in height (6) of the top surface of connect earring.
It can also be preferred that, when measuring the elevation of basic festival support (1), to adopting pre-buried rag bolt (101) to connect the tower crane foundation form of strengthening the festival, measure every the elevation of the pre-buried rag bolt (101) central point of landing leg puts.
It can also be preferred, measure every when the elevation of the pre-buried rag bolt (101) central point of landing leg puts, measure the slope condition or the elevation value of tower crane concrete cushion cap (4) top surface at every rag bolt (101) place with levelling rod or spirit level earlier, find rag bolt (101) elevation is the highest the landing leg is regarded as with this elevation the horizontal reference face of landing leg measures all the other rag bolt (101) basis altitude difference (6) of landing leg.
Preferably, after the welding connection mode of the other reinforced connection truss steel pipes and the standard reinforcing section main limb (2) with the standard size is the same as the welding mode of the standard reinforcing section of the tower crane except for the change of the size of the lengthened steel main limb (3), the lengthened steel main limb (3) of the processed tower crane reinforcing section is installed according to the position corresponding to the angular point of the on-site foundation section support (1), and after the lengthened steel main limb (3) of the reinforcing section is installed, the levelness of the top surfaces of all the main limbs on the upper part of the tower crane foundation is measured; if deviation exists, the deviation is adjusted through a deviation rectifying steel gasket (8) plugged between the connection node of the reinforcing node and the standard node (9).
The invention can achieve the following beneficial effects:
the invention relates to a tower crane installation structure and a method for correcting installation inclination caused by foundation inclination, which are used for solving the problems in the prior art, can avoid the situation that a tower crane standard knot cannot be horizontally installed due to inclination of a tower crane foundation or a tower crane foundation embedded knot, and have the following advantages: has the following advantages: (1) the construction method is convenient and fast, and is suitable for tower cranes of various models; (2) the condition that the installed tower crane is inclined due to uneven foundation is eliminated and corrected; (3) the installation inclination degree of the tower crane can be corrected from the first section of reinforcing section above the tower crane foundation, and all tower crane standard sections above the first section can be horizontally installed; (4) the situation that the main limb weak point is generated due to uneven stress of a main limb steel structure of the reinforcing section caused by the installation inclination of the first reinforcing section of the tower crane is avoided; (5) the installation accuracy of the tower crane reinforcing section is higher after the tower crane reinforcing section is deeply designed and processed according to the inclination degree; (6) the finished tower crane foundation with inclination deviation or the pre-buried section of the tower crane foundation can be utilized, so that the cost for re-constructing the tower crane foundation is reduced; (7) after the tower crane is used, the deepened reinforcing section can be recycled or reused, so that the cost is saved; (8) the tower crane can meet the requirements of the specifications and the tower crane operating specifications.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of one embodiment of a tower crane installation structure of the present invention.
Fig. 2 is a front view of the embodiment shown in fig. 1.
Fig. 3 is a top view of the embodiment shown in fig. 1.
Fig. 4 is a schematic structural view of another embodiment of the tower crane installation structure of the present invention.
Fig. 5 is a front view of the embodiment shown in fig. 4.
Fig. 6 is a top view of the embodiment shown in fig. 4.
FIG. 7 is a schematic structural diagram of a steel gasket for plugging and deviation rectifying between the standard joint connection nodes in the embodiment shown in FIG. 1.
FIG. 8 is a partial enlarged view of a position where a deviation-correcting steel gasket is added between standard knot connecting nodes.
FIG. 9 is a schematic structural diagram of a steel gasket for plugging and deviation rectifying between the standard joint connection nodes of the embodiment shown in FIG. 4.
In the figure, 1 is the basic festival support, and 101 is rag bolt, and 2 is standard and strengthens a main limb, and 3 is extension steel main limb, and 4 is tower crane concrete cushion cap, and 5 is the horizontal elevation control line of support, and 6 is the difference in height, and 7 is the slope directive line, and 8 is the steel gasket that rectifies, and 9 is the standard festival.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Example 1
The utility model provides a tower crane mounting structure, like FIG. 1 to FIG. 3, includes the tower crane structure, the tower crane structure includes that standard dimension's standard is strengthened festival main limb 2 and is lengthened main limb 3 of steel, the lower extreme of tower crane structure sets up to the base and saves support 1, and the lower extreme installation of base festival support 1 is buried underground on tower crane concrete cushion cap 4.
Example 2
The utility model provides a tower crane mounting structure, is similar with embodiment 1, and the difference is, if fig. 1 to fig. 3, the lower extreme of basic festival support 1 is provided with the landing leg, the lower extreme of landing leg is pre-buried constitutes basic pre-buried festival in concrete cushion cap 4.
In some embodiments, the number of the legs is four. Namely, the tower crane structure is rectangular.
In a further specific embodiment, four of the legs are uniformly distributed at four corners of the rectangle.
Or the lower end of the foundation section support 1 is provided with a connecting ear ring, and the lower end of the connecting ear ring is embedded in the concrete bearing platform 4 to form a foundation embedded section.
In some embodiments, the number of the connecting earrings is four.
In some embodiments, the four connecting earrings are uniformly distributed at four corners of the rectangle.
Example 3
A tower crane mounting structure is similar to embodiment 1, the difference is, as shown in fig. 4-6, the landing leg lower extreme is connected on concrete cushion cap 4 through pre-buried rag bolt 101.
Specifically, the number of the anchor bolts 101 embedded in each of the legs is four.
It may also be specific that four anchor bolts 101 are evenly distributed at four corner positions of the rectangle.
The standard reinforced joint main limb 2 and the lengthened steel main limb 3 are preferably steel tube structures.
Example 4
The method for correcting the installation inclination of the standard knot of the tower crane installation structure caused by the foundation inclination comprises the following steps,
as shown in fig. 1 to 3, the top surface of the tower crane concrete bearing platform 4 which is constructed and reaches the design strength and has a stable foundation structure is measured horizontally;
measuring the elevation of the foundation section support 1 to obtain a support horizontal elevation control line 5;
according to height difference data measured by a tower crane foundation on a construction site, a steel pipe truss main limb with a standard size is reserved as a standard reinforcing joint main limb 2, so that the size of the steel pipe truss main limb is kept unchanged, and the steel pipe truss main limb is arranged on a base part with the highest elevation; the other three steel pipe main limbs are used as lengthened steel main limbs 3, and the lengthened steel main limbs are lengthened according to the corresponding position relation with the elevation reference base and the measured height difference 6, so that the lengthening values of the other steel pipe main limbs are the same as the measured height difference 6;
marking after blanking of each steel member of the reinforcing section is finished, and measuring and rechecking the size of each steel member of the reinforcing section, so that the reinforcing section formed by welding and processing can be matched with the tower crane foundation section, and the butt joint error is controlled within the range of the preset standard requirement;
except that the size of the main lengthened steel limb 3 is changed, the welding connection mode of the rest truss steel pipes for reinforcing and connecting the four main limbs is the same as that of a standard tower crane reinforcing joint.
The lengths of the four main limbs of the reinforcing section can be adjusted according to the deflection condition of the tower crane foundation and the deflection degree of a concrete bearing platform 4 of the tower crane or a pre-embedded section of the foundation, so that the vertical deflection of the tower crane foundation can be corrected, and the top surfaces of the four main limbs of the steel pipe are ensured to be welded and processed on the reinforcing section steel members on the same horizontal plane; installing the reinforcing section according to the corresponding position relation of the base section support and the four main limbs of the adjusted reinforcing section; and each standard joint 9 on the upper part of the tower crane can be installed without adding a deviation-rectifying steel gasket, so that the safe use of the tower crane can be ensured.
Example 5
The utility model provides a method of correcting of tower crane mounting structure because of base skew leads to standard festival installation slope, is similar with embodiment 4, and the difference is, as shown in figure 1 to 3, when measuring the elevation of basic festival support 1, to adopting the tower crane foundation form of the pre-buried festival of basis, measure the elevation of foundation festival support 1 upper leg top surface.
More specifically, measure basic festival support 1 on the elevation of landing leg top surface, earlier with the slope condition of horizontal ruler or spirit level measurement basic festival support 1, find that basic festival exposes the elevation highest the landing leg, with the elevation is the highest the landing leg is the horizontal plane benchmark, measures all the other the difference in height 6 of the top surface of landing leg.
More specifically, the number of the supporting legs on the base section support 1 is four.
More specifically, four of the support legs are uniformly distributed at four corners of the rectangle.
Then measure on basic festival support 1 during the elevation of landing leg top surface, earlier with the slope condition of horizontal ruler or spirit level measurement basic festival support 1, find the elevation is the highest the landing leg to the elevation is the horizontal plane benchmark, measures all the other three the difference in height 6 of the top surface of landing leg.
Or, when measuring the elevation of the foundation section support 1, the elevation of the top surface of the connecting lug ring on the foundation section support 1 is measured in the tower crane foundation form adopting the foundation embedded section.
More specifically, when measuring the elevation that exposes the engaging lug ring top surface on the basis festival support 1, earlier with the slope condition of level bar or surveyor's level measurement basis festival support 1, find the elevation is highest the engaging lug ring, it is highest with the elevation the engaging lug ring is the horizontal plane benchmark, measures all the other the difference in height 6 of the top surface of engaging lug ring.
More specifically, the number of the connecting earrings on the base section support 1 is four.
More specifically, four of the connecting earrings are uniformly distributed at four corners of the rectangle.
Then measure basic festival support 1 on the elevation of engaging lug ring top surface, earlier with the slope condition of level bar or surveyor's level measurement basic festival support 1, find the elevation is the highest engaging lug ring, with the elevation is the highest engaging lug ring is the horizontal plane benchmark, measures all the other three the difference in height 6 of the top surface of engaging lug ring.
Example 6
The utility model provides a tower crane mounting structure leads to correction method of standard festival installation slope because of basic incline, is similar with embodiment 4, and the difference is, as figure 4 to figure 6, when measuring the elevation of basic festival support 1, to adopting pre-buried rag bolt 101 to connect the tower crane foundation form of strengthening the festival, measure every the elevation of the pre-buried rag bolt 101 central point of landing leg puts.
It can also be specific, measure every during the elevation of the pre-buried rag bolt 101 central point of landing leg puts, earlier with horizontal ruler or spirit level measurement the slope condition or the elevation value of 4 top surfaces of tower crane concrete cushion caps at every rag bolt 101 place, find rag bolt 101 elevation is the highest the landing leg regards as with this elevation the horizontal reference surface of landing leg measures all the other the rag bolt 101 basis altitude difference 6 of landing leg.
Specifically, the number of the anchor bolts 101 embedded in each of the legs may be four.
It may also be specific to evenly distribute four anchor bolts 101 at four corner positions of the rectangle.
Then measure every during the elevation of the pre-buried rag bolt 101 central point of landing leg puts, earlier with horizontal ruler or spirit level measurement the slope condition or the elevation value of 4 top surfaces of tower crane concrete cushion caps at every rag bolt 101 place, find that rag bolt 101 elevation is the highest the landing leg regards as with this elevation the horizontal reference surface of landing leg measures all the other three the rag bolt 101 basis altitude difference 6 of landing leg.
And specifically, the lengthened steel main limb 3, the rest of the reinforced connecting truss steel pipes and the standard reinforcing joint main limb 2 with the standard size are welded in a horizontal or vertical state, so that the top surfaces of the four main limbs of the reinforcing joint are ensured to be on the same horizontal plane.
Specifically, except for the change of the size of the lengthened steel main limb 3, after the welding connection mode of the other reinforced connection truss steel pipes and the standard reinforcing section main limb 2 with the standard size is the same as that of the tower crane standard reinforcing section, the lengthened steel main limb 3 of the processed tower crane reinforcing section is installed according to the position corresponding to the angular point of the on-site foundation section support 1, and after the lengthened steel main limb 3 of the reinforcing section is installed, the levelness measurement is carried out on the top surfaces of all main limbs on the upper part of the tower crane foundation, for example, the levelness measurement is carried out on the top surfaces of four main limbs on the upper part of the tower crane foundation; if there is the deviation, especially little deviation, then the accessible adds the steel gasket 8 of rectifying of stopper between the connected node of strengthening festival and standard festival 9 and adjusts, if finely tune to ensure that tower crane standard festival 9 can install perpendicularly, correct the straightness deviation of hanging down to the minimum, guarantee tower crane safe in utilization.
According to the method for correcting the installation inclination of the standard knot due to the inclination of the foundation, the upper level of the first reinforcing knot installed on the tower crane foundation is guaranteed, all the standard knots 9 of the tower crane can be horizontally installed and jacked, and the situation that a certain connecting node of the foundation becomes a stressed weak point due to the installation inclination of the standard knot 9 of the first tower crane is influenced, so that the safe use of the tower crane is influenced is avoided.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. The utility model provides a tower crane mounting structure, includes the tower crane structure, its characterized in that, the tower crane structure includes that standard dimension's standard is strengthened festival main limb (2) and is lengthened steel main limb (3), the lower extreme of tower crane structure sets up to base festival support (1), and the lower extreme installation of base festival support (1) is buried underground on tower crane concrete cushion cap (4).
2. The tower crane installation structure of claim 1, characterized in that the lower end of the foundation section support (1) is provided with a support leg, and the lower end of the support leg is embedded in the concrete bearing platform (4) to form a foundation embedded section.
3. The method for correcting the installation inclination of the standard knot of the tower crane installation structure caused by the foundation inclination according to the claim 1 or 2, which is characterized by comprising the following steps,
horizontally measuring the top surface of the tower crane concrete bearing platform (4) which is constructed, reaches the design strength and has a stable foundation structure;
measuring the elevation of the foundation section support (1) to obtain a support horizontal elevation control line (5);
according to height difference data measured by a tower crane foundation on a construction site, a steel pipe truss main limb with a standard size is reserved as a standard reinforcing joint main limb (2), so that the size of the steel pipe truss main limb is kept unchanged, and the steel pipe truss main limb is arranged on a base part with the highest elevation; the other three steel pipe main limbs are used as lengthened steel main limbs (3) and are lengthened according to the corresponding position relation with the elevation reference base and the measured height difference (6), so that the lengthening values of the other steel pipe main limbs are the same as the measured height difference (6);
marking after blanking of each steel member of the reinforcing section is finished, and measuring and rechecking the size of each steel member of the reinforcing section, so that the reinforcing section formed by welding and processing can be matched with the tower crane foundation section, and the butt joint error is controlled within the range of the preset standard requirement;
except that the size of the main lengthened steel limb (3) is changed, the welding connection mode of the rest truss steel pipes for reinforcing and connecting the four main limbs is the same as that of a standard tower crane reinforcing joint.
4. The tower crane installation structure correcting method for the standard section installation inclination caused by the foundation inclination according to claim 3, wherein when the elevation of the foundation section support (1) is measured, the elevation of the top surface of the upper leg of the foundation section support (1) is measured for the tower crane foundation form adopting the foundation embedded section.
5. The tower crane installation structure correcting method for the standard section installation inclination caused by the foundation inclination according to claim 4 is characterized in that when the elevation of the top surface of the supporting leg on the foundation section support (1) is measured, a horizontal ruler or a level gauge is used for measuring the inclination condition of the foundation section support (1) to find the supporting leg with the highest exposed elevation of the foundation section, and the supporting leg with the highest elevation is used as a horizontal plane reference to measure the height difference (6) of the top surfaces of the rest supporting legs.
6. The tower crane installation structure correcting method for the installation inclination of the standard joint caused by the foundation inclination according to claim 3, wherein when the elevation of the foundation joint support (1) is measured, the elevation of the top surface of the connecting lug ring on the foundation joint support (1) is measured for the tower crane foundation form adopting the foundation embedded joint.
7. The tower crane mounting structure of claim 6 is used for correcting the installation inclination of the standard joint caused by the foundation inclination, and is characterized in that when the elevation of the top surface of the exposed connecting lug ring on the foundation joint support (1) is measured, a horizontal ruler or a level gauge is used for measuring the inclination condition of the foundation joint support (1) to find the connecting lug ring with the highest elevation, and the connecting lug ring with the highest elevation is used as a horizontal reference to measure the height difference (6) of the top surfaces of the rest connecting lug rings.
8. The tower crane installation structure correcting method for the installation inclination of the standard section caused by the foundation inclination according to claim 4, wherein when the elevation of the foundation section support (1) is measured, the elevation of the center position of the foundation bolt (101) embedded in each supporting leg is measured for the tower crane foundation form adopting the embedded foundation bolts (101) to connect the reinforcing section.
9. The tower crane installation structure correcting method for the installation inclination of the standard section caused by the foundation inclination according to claim 8, wherein when the elevation of the center position of the anchor bolt (101) embedded in each landing leg is measured, a horizontal ruler or a leveling instrument is used for measuring the inclination condition or the elevation value of the top surface of the tower crane concrete bearing platform (4) where each anchor bolt (101) is located, the landing leg with the highest elevation of the anchor bolt (101) is found, the elevation is used as the horizontal reference surface of the landing leg, and the foundation height difference (6) of the anchor bolts (101) of the rest of the landing legs is measured.
10. The tower crane installation structure of any one of claims 3 to 9, which is a method for correcting the installation inclination of a standard joint caused by the deflection of a foundation, is characterized in that, except for the change of the size of the main lengthened steel limb (3), the welding connection mode of other steel pipes for reinforcing and connecting a truss and the main limb (2) of the standard reinforced joint with the standard size is the same as that of the standard reinforced joint of the tower crane, the main lengthened steel limb (3) of the processed tower crane reinforced joint is installed according to the position corresponding to each angular point of the on-site foundation joint support (1), and after the installation of the main lengthened steel limb (3) of the reinforced joint is finished, the levelness of the top surfaces of all main limbs on the upper part of the tower crane foundation is measured; if deviation exists, the deviation is adjusted through a deviation rectifying steel gasket (8) plugged between the connection node of the reinforcing node and the standard node (9).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107100A (en) * | 2021-04-14 | 2021-07-13 | 北京崇建工程有限公司 | Leveling method for tower crane embedded joint |
| CN114777732A (en) * | 2022-04-20 | 2022-07-22 | 中国三冶集团有限公司 | Mounting method of sintering cylinder type mixer |
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| CN114777732A (en) * | 2022-04-20 | 2022-07-22 | 中国三冶集团有限公司 | Mounting method of sintering cylinder type mixer |
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| CN112551395B (en) | 2023-03-31 |
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