CN114960731A - Embedded and nested combined tower crane section foundation and construction method - Google Patents
Embedded and nested combined tower crane section foundation and construction method Download PDFInfo
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- CN114960731A CN114960731A CN202210363177.2A CN202210363177A CN114960731A CN 114960731 A CN114960731 A CN 114960731A CN 202210363177 A CN202210363177 A CN 202210363177A CN 114960731 A CN114960731 A CN 114960731A
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- 238000010276 construction Methods 0.000 title claims abstract description 35
- 238000009434 installation Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 112
- 239000010959 steel Substances 0.000 claims description 112
- 230000000712 assembly Effects 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 13
- 238000011065 in-situ storage Methods 0.000 claims description 7
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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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
- 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
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
Abstract
The invention relates to a pre-embedded nested combined tower crane section foundation, which comprises: a tower crane foundation bearing platform is nested with the combined tower crane section; the tower crane foundation bearing platform comprises an upper foundation bearing platform and a lower foundation bearing platform which supports the upper foundation bearing platform; the lower part of the nested combined tower crane joint is embedded in the upper foundation bearing platform; the nested combined tower crane section comprises: the large lattice tower crane section is nested in the small lattice tower crane section in the large lattice tower crane section and is used for connecting a connecting member of the large lattice tower crane section and the small lattice tower crane section; the upper end of the small lattice tower crane section is higher than the upper end of the large lattice tower crane section. The embedded and nested combined tower crane section foundation and the construction method can realize replacement installation of a small-size tower crane or a large-size tower crane without modifying a tower crane foundation bearing platform, have better safety, reduce cost and shorten construction period.
Description
Technical Field
The invention relates to the technical field of foundation structures of construction machinery, in particular to an embedded and nested combined type tower crane section foundation and a construction method.
Background
With the gradual popularization and application of building industrialization, the prefabricated concrete structure develops rapidly, and large-scale hoisting equipment such as a tower crane and the like is urgently needed to be matched for construction; the construction of underground part only needs small-sized tower cranes, and the construction of overground part needs large-sized tower cranes; the lattice tower crane section of the tower crane is used for installing the tower crane, and the lower part of the lattice tower crane section is embedded in a tower crane foundation bearing platform; when the underground part is constructed, a small-lattice tower crane section for mounting a small-size tower crane is pre-embedded in a tower crane foundation bearing platform; after the underground part is finished, the small-lattice tower crane sections need to be dismantled, a tower crane foundation bearing platform needs to be modified, and large-lattice tower crane sections for mounting large-size tower cranes are pre-embedded in the tower crane foundation bearing platform, so that the cost is increased, the construction period is prolonged, and potential safety hazards exist; if the underground part and the overground part are constructed by large-scale tower cranes, the construction of the underground part is not convenient enough, and the tower cranes cannot fully utilize the hoisting performance; therefore, the pre-embedded and nested combined tower crane section foundation and the construction method are designed, which can realize replacement installation of a small-size tower crane or a large-size tower crane without modifying a tower crane foundation bearing platform, have better safety, reduce cost and shorten construction period, and are a problem to be solved urgently.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the embedded and nested combined type tower crane section foundation and the construction method, which can realize replacement installation of a small-size tower crane or a large-size tower crane without modifying a tower crane foundation bearing platform, have better safety, reduce cost and shorten construction period.
The specific technical scheme of the invention is as follows:
a pre-buried nested combined tower crane section foundation comprises: a tower crane foundation bearing platform is nested with the combined tower crane section; the tower crane foundation bearing platform comprises an upper foundation bearing platform and a lower foundation bearing platform which supports the upper foundation bearing platform; the lower part of the nested combined tower crane joint is embedded in the upper foundation bearing platform; the nested combined tower crane section comprises: the large lattice tower crane section is nested in the small lattice tower crane section in the large lattice tower crane section and is used for connecting a connecting member of the large lattice tower crane section and the small lattice tower crane section; the upper end of the small lattice tower crane section is higher than the upper end of the large lattice tower crane section.
Preferably, the large-lattice tower crane section is in a rectangular lattice structure which is a stable system; big lattice tower crane festival includes: the four angle steel upright posts are distributed at four corners of the rectangle in a one-to-one correspondence manner, the four lower ends of the angle steel upright posts are provided with positioning steel pipes, the upper ends of the supporting plates are connected with the lower ends of the four angle steel upright posts in a one-to-one correspondence manner, the four outer mounting assemblies and the four supporting plate groups are in one-to-one correspondence with the four angle steel upright posts, and the four outer fixing assemblies are distributed between the two adjacent angle steel upright posts in a one-to-one correspondence manner; the outer mounting assembly includes: the two upper ends of the two mounting lugs are provided with outer mounting through holes, the lower ends of the two mounting lugs are in one-to-one correspondence connection with the upper parts of the outer sides of the two side edges of the angle steel upright rod, the lower ends of the two mounting lugs are in L-shaped mounting plates connected with the upper parts of the inner sides of the angle steel upright rod, and the two inner mounting through holes which are in one-to-one correspondence with the two side edges of the L-shaped mounting plates and are in one-to-one correspondence with the outer mounting through holes arranged on the two mounting lugs are opposite to each other; the external fixation assembly includes: the two ends of the outer upper chord, the two ends of the outer lower chord and the two ends of the outer web rods are correspondingly connected with the inner sides of the opposite sides of the two adjacent angle steel vertical rods one by one; the support plate group includes: two supporting plates which are correspondingly connected with the outer sides of two side edges of the angle steel upright rods one by one; the lower end of the supporting plate is connected with the upper end of the supporting plate.
Preferably, the small lattice tower crane section is in a rectangular lattice structure which is a stable system; little lattice tower crane festival includes: the four inner mounting assemblies are in one-to-one correspondence with the four square steel pipe vertical rods, the four inner fixing assemblies are distributed between the two adjacent square steel pipe vertical rods in one-to-one correspondence, and the four support rod groups are composed of four inner web members; the interior installation component includes: two to four mounting sleeves; each mounting sleeve is connected with the upper part of one side end of the square steel pipe upright; the internal fixation assembly includes: the two ends of the inner upper chord, the two ends of the inner middle chord, the two ends of the inner lower chord and the two ends of the inner lower chord are connected with the opposite side ends of the two adjacent square steel pipe vertical rods in a one-to-one correspondence mode; one ends of the two inner web members are connected with the lower end of the inner upper chord member, and the other ends of the two inner web members are correspondingly connected with the upper end of the inner middle chord member and the opposite side ends of the two adjacent square steel pipe upright rods one by one; one ends of the other two inner web members are connected with the lower end of the inner middle chord member, and the other ends of the other two inner web members are correspondingly connected with the upper end of the inner lower chord member and the opposite side ends of the two adjacent square steel pipe vertical rods one to one.
Preferably, the connecting member comprises four connecting components which are in one-to-one correspondence with the four square steel pipe vertical rods; the connecting assembly comprises two section steel groups which are in one-to-one correspondence with two side edges of the angle steel upright stanchion and two adjacent outer side ends of the square steel pipe upright stanchion; the section steel group consists of two section steels which are arranged up and down; two opposite side edges of the section steel of one section steel group are correspondingly connected with the inner side of one side edge of the angle steel upright stanchion and one outer side end of the square steel pipe upright stanchion one by one, and two side edges of the section steel of the other section steel group are correspondingly connected with the inner side of the other side edge of the angle steel upright stanchion and the other outer side end of the square steel pipe upright stanchion one by one; the section steel is channel steel.
Preferably, four lattice columns which are correspondingly positioned at the outer sides of the four angle steel upright rods one by one are arranged in the lower foundation bearing platform, and four lattice stabilizing members which are correspondingly distributed between two adjacent lattice columns one by one are arranged in the lower foundation bearing platform; the lattice stabilizing piece comprises two diagonal braces of which the high ends are correspondingly connected with the opposite ends of two adjacent lattice columns one by one, and the other ends of the two diagonal braces are connected; the upper end of the lattice column extends out of the upper end of the lower foundation bearing platform and is arranged in the upper foundation bearing platform.
Preferably, four cast-in-situ bored piles which are coated on the peripheries of the four lattice columns in a one-to-one correspondence mode are arranged in the lower foundation bearing platform. The distance between piles is 2.8 m.
As preferred, the upper end of little lattice tower crane festival be higher than the upper end 350mm to 500mm of big lattice tower crane festival, on the plane, the width of big lattice tower crane festival is greater than the width 100mm to 200mm of little lattice tower crane festival, convenience and security when guaranteeing large-scale tower crane and small-size tower crane to change.
A construction method of an embedded and nested combined type tower crane section foundation is characterized in that the embedded and nested combined type tower crane section foundation is the embedded and nested combined type tower crane section foundation, firstly, a small-size tower crane is designed and determined according to the requirement of the construction load capacity of the underground part, and a large-size tower crane, a nested and combined type tower crane section, a lower foundation bearing platform and an upper foundation bearing platform are designed and determined according to the requirement of the construction load capacity of the overground part; step two, manufacturing a nested combined tower crane section; step three, constructing a lower foundation bearing platform, placing the lower part of the lattice column in a drill hole after drilling, and pouring concrete in the drill hole to form a cast-in-situ bored pile; paying off the lower foundation bearing platform, placing the nested combined type tower crane section on the lower foundation bearing platform for positioning, and leveling the nested combined type tower crane section; step five, constructing an upper foundation bearing platform, pouring concrete, and embedding the lower part of the nested combined type tower crane section in the upper foundation bearing platform; step six, mounting the small-sized tower crane on a small-lattice tower crane section of the nested combined tower crane section, and connecting the small-sized tower crane section with a mounting sleeve of the inner mounting assembly through a bolt to carry out underground part construction; and seventhly, removing the small-size tower crane after the underground part is constructed, replacing the large-size tower crane to be arranged on the large lattice tower crane section of the nested combined tower crane section and to be connected with the mounting lug of the outer mounting assembly and the L-shaped mounting plate through the pin shaft, and carrying out the construction of the above-ground part.
Compared with the prior art, the invention has the beneficial effects that: the embedded and nested combined tower crane section foundation and the construction method share one embedded and nested combined tower crane section of the tower crane foundation bearing platform, replacement and installation of a small-size tower crane or a large-size tower crane can be realized without modifying the tower crane foundation bearing platform, the safety is good, the cost is reduced, and the construction period is shortened. The small lattice tower crane section and the large lattice tower crane section of the tower crane foundation bearing platform are both rectangular lattices of a stable system, and the nested combined tower crane section formed by the large lattice tower crane section and the small lattice tower crane section through connecting members is a self-stable system, so that the strength and the rigidity are high. The positioning steel pipe is beneficial to the time-saving positioning of the embedded and nested combined tower crane, and the construction quality is ensured. When the underground part is constructed, the small-sized tower crane is arranged on the small-lattice tower crane section of the nested combined tower crane section and is connected with the mounting sleeve of the inner mounting assembly through the bolt, so that the connection is stable; when the construction of the overground part is carried out, the large tower crane is arranged on the large lattice tower crane section of the nested combined tower crane section and is connected with the mounting lug of the outer mounting component and the L-shaped mounting plate through the pin shaft, so that the connection is stable. The upper end of small lattice tower crane section is higher than the upper end 350mm to 500mm of large lattice tower crane section, and on the plane, the width of large lattice tower crane section is greater than the width 100mm to 200mm of small lattice tower crane section, guarantees convenience and security when large-scale tower crane and small-size tower crane are changed. Four latticed columns which are located outside the four angle steel vertical rods in one-to-one correspondence are arranged in the lower foundation bearing platform, the upper ends of the latticed columns extend out of the upper end of the lower foundation bearing platform and are arranged in the upper foundation bearing platform, four cast-in-situ bored piles which are coated on the peripheries of the four latticed columns in one-to-one correspondence are arranged in the lower foundation bearing platform, and therefore the integral strength and the bearing capacity of the tower crane foundation bearing platform are improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a top view of the present invention;
fig. 3 is a schematic structural diagram of an angle steel upright, a support plate, a square steel pipe upright and a channel steel.
In the figure: the structure comprises an upper foundation bearing platform 1, a lower foundation bearing platform 2, a large lattice tower crane section 3, a small lattice tower crane section 4, an angle steel upright rod 5, a positioning steel pipe 6, a bearing plate 7, an outer mounting through hole 8, a mounting lug 9, an L-shaped mounting plate 10, an inner mounting through hole 11, an outer upper chord 12, an outer lower chord 13, an outer web member 14, a supporting plate 15, a square steel pipe upright rod 16, a mounting sleeve 17, an inner upper chord 18, an inner middle chord 19, an inner lower chord 20, an inner web member 21, channel steel 22, a lattice column 23, an inclined stay bar 24 and a cast-in-situ bored pile 25.
Detailed Description
The invention will be further described with reference to the drawings.
As shown in the attached figures 1, 2 and 3: a pre-buried nested combined tower crane section foundation comprises: a tower crane foundation bearing platform is nested with the combined tower crane section; the tower crane foundation bearing platform comprises an upper foundation bearing platform 1 and a lower foundation bearing platform 2 for supporting the upper foundation bearing platform 1; the lower part of the nested combined tower crane joint is embedded in the upper foundation bearing platform 1; the nested combined tower crane section comprises: the large lattice tower crane section 3 is nested in the small lattice tower crane section 4 in the large lattice tower crane section 3 and is used for connecting a connecting member of the large lattice tower crane section 3 and the small lattice tower crane section 4; the upper end of the small lattice tower crane section 4 is higher than the upper end of the large lattice tower crane section 3.
The large lattice tower crane section 3 is in a rectangular lattice structure which is a stable system; big lattice tower crane festival 3 includes: the steel angle fixing device comprises four angle steel upright posts 5 which are distributed at four corners of a rectangle in a one-to-one correspondence manner, four bearing plates 7 which are provided with positioning steel pipes 6 at the lower ends and are welded with the lower ends of the four angle steel upright posts 5 in a one-to-one correspondence manner, four outer mounting assemblies and four bearing plate groups which are in one-to-one correspondence with the four angle steel upright posts 5, and four outer fixing assemblies which are distributed between two adjacent angle steel upright posts 5 in a one-to-one correspondence manner; the outer mounting assembly includes: two mounting lugs 9 with outer mounting through holes 8 at the upper ends and lower ends welded with the upper parts of the outer sides of the two side edges of the angle steel upright 5 in a one-to-one correspondence manner, two L-shaped mounting plates 10 with lower ends welded with the upper parts of the inner sides of the angle steel upright 5, and two inner mounting through holes 11 which are arranged on the two side edges of the L-shaped mounting plates 10 in a one-to-one correspondence manner and are opposite to the outer mounting through holes 8 arranged on the two mounting lugs 9 in a one-to-one correspondence manner; the external fixation assembly includes: the two ends of the upper chord 12, the lower chord 13 and the web members 14 are correspondingly welded with the inner sides of the opposite sides of the two adjacent angle steel vertical rods 5; the support plate group includes: two supporting plates 15 which are welded with the outer sides of two side edges of the angle steel upright stanchions 5 in a one-to-one correspondence way; the lower end of the supporting plate 15 is welded with the upper end of the supporting plate 7.
The small lattice tower crane section 4 is in a rectangular lattice structure which is a stable system; little lattice tower crane festival 4 includes: four square steel tube vertical rods 16 which are positioned at the inner sides of the four angle steel vertical rods 5 in a one-to-one correspondence manner, the lower ends of the square steel tube vertical rods 16 are welded with the upper ends of the four bearing plates 7 in a one-to-one correspondence manner, four inner mounting assemblies which are in one-to-one correspondence with the four square steel tube vertical rods 16, four inner fixing assemblies which are distributed between the two adjacent square steel tube vertical rods 16 in a one-to-one correspondence manner, and four supporting rod groups which are formed by four inner web members; the interior installation component includes: three mounting sleeves 17; each mounting sleeve 17 is welded with the upper part of one side end of the square steel pipe upright post 16; the internal fixation assembly includes: the two ends of the inner upper chord 18, the inner middle chord 19, the inner lower chord 20 and the four inner web members 21 are correspondingly welded with the opposite side ends of the two adjacent square steel pipe vertical rods 16 one by one; one end of each of the two inner web members 21 is welded with the lower end of the inner upper chord 18, and the other end of each of the two inner web members 21 is welded with the upper end of the inner middle chord 19 and the opposite ends of the two adjacent square steel pipe upright posts 16 in a one-to-one correspondence manner; one ends of the other two inner web members 21 are welded with the lower end of the inner middle chord 19, and the other ends of the other two inner web members 21 are welded with the upper ends of the inner lower chord 20 and the opposite side ends of the two adjacent square steel pipe vertical rods 16 in a one-to-one correspondence manner.
The connecting members comprise four connecting components which are in one-to-one correspondence with the four square steel pipe upright posts 16; the connecting assembly comprises two section steel groups which correspond to two side edges of the angle steel upright rod 5 and two adjacent outer side ends of the square steel pipe upright rod 16 one by one; the section steel group consists of two section steels which are arranged up and down; two opposite side edges of the section steel of one section steel group are correspondingly welded with the inner side of one side edge of the angle steel upright 5 and one outer side end of the square steel pipe upright 16 one by one, and two side edges of the section steel of the other section steel group are correspondingly welded with the inner side of the other side edge of the angle steel upright 5 and the other outer side end of the square steel pipe upright 16 one by one; the section steel is channel steel 22.
Four lattice columns 23 which are positioned at the outer sides of the four angle steel upright rods 5 in a one-to-one correspondence manner are arranged in the lower foundation bearing platform 2, and four lattice stabilizing members which are distributed between two adjacent lattice columns 23 in a one-to-one correspondence manner; the lattice stabilizing part comprises two diagonal support rods 24 with high ends welded with opposite ends of two adjacent lattice columns 23 in one-to-one correspondence, and the other ends of the two diagonal support rods 24 are welded and connected; the upper ends of the lattice columns 23 extend out of the upper end of the lower foundation bearing platform 2 and are placed in the upper foundation bearing platform 1.
Four cast-in-situ bored piles 25 which are correspondingly coated on the peripheries of the four lattice columns 23 one by one are arranged in the lower foundation bearing platform 2.
The upper end of small lattice tower crane section 4 be higher than 360mm in the upper end of large lattice tower crane section 3, on the plane, the width of large lattice tower crane section 3 is greater than the width 200mm of small lattice tower crane section 4, convenience and security when guaranteeing large-scale tower crane and small-size tower crane to change.
A construction method of an embedded and nested combined type tower crane section foundation is characterized in that the embedded and nested combined type tower crane section foundation is the embedded and nested combined type tower crane section foundation, firstly, a small-size tower crane is designed and determined according to the requirement of the construction load capacity of the underground part, and a large-size tower crane, a nested and combined type tower crane section, a lower foundation bearing platform 2 and an upper foundation bearing platform 1 are designed and determined according to the requirement of the construction load capacity of the overground part; step two, manufacturing a nested combined tower crane section; step three, constructing the lower foundation bearing platform 2, placing the lower part of the lattice column 23 in a drilled hole after drilling, and pouring concrete in the drilled hole to form a cast-in-situ bored pile 25; paying off the lower foundation bearing platform 2, placing the nested combined type tower crane section on the lower foundation bearing platform 2 for positioning, and leveling the nested combined type tower crane section; step five, constructing the upper foundation bearing platform 1, pouring concrete, and embedding the lower part of the nested combined type tower crane section in the upper foundation bearing platform 1; step six, the small-sized tower crane is arranged on the small-lattice tower crane section 4 of the nested combined tower crane section and connected with the mounting sleeve 17 of the inner mounting component through a bolt, and underground part construction is carried out; and seventhly, after the underground part is constructed, the small-size tower crane is detached, the large-size tower crane is replaced and arranged on the large lattice tower crane section 3 of the nested combined tower crane section and connected with the mounting lug 9 of the outer mounting assembly and the L-shaped mounting plate 10 through the pin shaft, and the construction of the overground part is carried out.
In addition to the above embodiments, the technical features or technical data of the present invention may be reselected and combined to form new embodiments within the scope of the claims and the specification of the present invention, which are all realized by those skilled in the art without creative efforts, and thus, the embodiments of the present invention not described in detail should be regarded as specific embodiments of the present invention and are within the protection scope of the present invention.
Claims (8)
1. A pre-buried nested combined tower crane section foundation comprises: tower crane foundation cushion cap, characterized by, pre-buried nested combination formula tower crane festival basis still include: nesting the combined tower crane sections; the tower crane foundation bearing platform comprises an upper foundation bearing platform and a lower foundation bearing platform which supports the upper foundation bearing platform; the lower part of the nested combined tower crane joint is embedded in the upper foundation bearing platform; the nested combined tower crane section comprises: the large lattice tower crane section is nested in the small lattice tower crane section in the large lattice tower crane section and is used for connecting a connecting member of the large lattice tower crane section and the small lattice tower crane section; the upper end of the small lattice tower crane section is higher than the upper end of the large lattice tower crane section.
2. The embedded and nested combined tower crane section foundation of claim 1, wherein the large lattice tower crane section is a rectangular lattice which is a stable system; big lattice tower crane festival includes: the four angle steel upright posts are distributed at four corners of the rectangle in a one-to-one correspondence manner, the four lower ends of the angle steel upright posts are provided with positioning steel pipes, the upper ends of the supporting plates are connected with the lower ends of the four angle steel upright posts in a one-to-one correspondence manner, the four outer mounting assemblies and the four supporting plate groups are in one-to-one correspondence with the four angle steel upright posts, and the four outer fixing assemblies are distributed between the two adjacent angle steel upright posts in a one-to-one correspondence manner; the outer mounting assembly includes: the two upper ends of the two mounting lugs are provided with outer mounting through holes, the lower ends of the mounting lugs are connected with the outer sides of the two side edges of the angle steel upright in a one-to-one correspondence manner, the lower ends of the mounting lugs are connected with the inner side of the angle steel upright in an L-shaped manner, and the two inner mounting through holes which are arranged on the two side edges of the L-shaped mounting plate in a one-to-one correspondence manner and are opposite to the two outer mounting through holes in a one-to-one correspondence manner are formed in the L-shaped mounting plate; the external fixation assembly includes: the two ends of the outer upper chord, the two ends of the outer lower chord and the two ends of the outer web rods are correspondingly connected with the inner sides of the opposite sides of the two adjacent angle steel vertical rods one by one; the support plate group includes: two supporting plates which are correspondingly connected with the outer sides of two side edges of the angle steel upright stanchion one by one; the lower end of the supporting plate is connected with the upper end of the supporting plate.
3. The embedded and nested combined tower crane section foundation of claim 2, wherein the small lattice tower crane section is in a rectangular lattice structure which is a stable system; little lattice tower crane festival includes: the steel tube support comprises four square steel tube vertical rods which are positioned on the inner sides of the four angle steel vertical rods in a one-to-one correspondence manner, four inner mounting assemblies which are in one-to-one correspondence with the four square steel tube vertical rods, four inner fixing assemblies which are distributed between two adjacent square steel tube vertical rods in a one-to-one correspondence manner, and four support rod groups which are formed by four inner web members; the interior installation component includes: two to four mounting sleeves; each mounting sleeve is connected with the upper part of one side end of the square steel pipe upright; the internal fixation assembly includes: the two ends of the inner upper chord, the two ends of the inner middle chord, the two ends of the inner lower chord and the two ends of the inner lower chord are connected with the opposite side ends of the two adjacent square steel pipe vertical rods in a one-to-one correspondence mode; one ends of the two inner web members are connected with the lower end of the inner upper chord member, and the other ends of the two inner web members are correspondingly connected with the upper end of the inner middle chord member and the opposite side ends of the two adjacent square steel pipe upright rods one by one; one ends of the other two inner web members are connected with the lower end of the inner middle chord member, and the other ends of the other two inner web members are correspondingly connected with the upper end of the inner lower chord member and the opposite side ends of the two adjacent square steel pipe vertical rods one to one.
4. The embedded and nested combined tower crane section foundation of claim 3, wherein the connecting members comprise four connecting assemblies in one-to-one correspondence with four square steel pipe vertical rods; the connecting assembly comprises two section steel groups which are in one-to-one correspondence with two side edges of the angle steel upright stanchion and two adjacent outer side ends of the square steel pipe upright stanchion; the section steel group consists of two section steels which are arranged up and down; two opposite side edges of the section steel of one section steel group are correspondingly connected with the inner side of one side edge of the angle steel vertical rod and the outer side end of the square steel pipe vertical rod one by one, and two side edges of the section steel of the other section steel group are correspondingly connected with the inner side of the other side edge of the angle steel vertical rod and the other outer side end of the square steel pipe vertical rod one by one.
5. The embedded and nested combined type tower crane section foundation according to claim 1, 2, 3 or 4, wherein four lattice columns which are located outside the four angle steel upright rods in a one-to-one correspondence manner are arranged in the lower foundation bearing platform, and four lattice stabilizing members which are distributed between two adjacent lattice columns in a one-to-one correspondence manner are arranged in the lower foundation bearing platform; the lattice stabilizing piece comprises two diagonal braces of which the high ends are correspondingly connected with the opposite ends of two adjacent lattice columns one by one, and the other ends of the two diagonal braces are connected; the upper ends of the lattice columns extend out of the upper end of the lower foundation bearing platform and are arranged in the upper foundation bearing platform.
6. The embedded and nested combined tower crane section foundation according to claim 5, wherein four cast-in-place piles which are coated on the peripheries of the four lattice columns in a one-to-one correspondence manner are arranged in the lower foundation bearing platform.
7. The embedded and nested combined tower crane section foundation of claim 1, 2, 3 or 4, wherein the upper end of the small lattice tower crane section is 350mm to 500mm higher than the upper end of the large lattice tower crane section, and the width of the large lattice tower crane section is 100mm to 200mm greater than that of the small lattice tower crane section on the plane.
8. A construction method of an embedded and nested combined type tower crane section foundation is characterized in that the embedded and nested combined type tower crane section foundation is the embedded and nested combined type tower crane section foundation according to any one of claims 1 to 7, and comprises the steps of firstly, designing and determining a small-size tower crane according to the requirement of the construction load capacity of underground parts, and designing and determining a large-size tower crane, a nested combined type tower crane section, a lower foundation bearing platform and an upper foundation bearing platform according to the requirement of the construction load capacity of overground parts; step two, manufacturing a nested combined tower crane section; step three, constructing a lower foundation bearing platform, placing the lower part of the lattice column in a drill hole after drilling, and pouring concrete in the drill hole to form a cast-in-situ bored pile; paying off the lower foundation bearing platform, placing the nested combined type tower crane section on the lower foundation bearing platform for positioning, and leveling the nested combined type tower crane section; step five, constructing an upper foundation bearing platform, pouring concrete, and embedding the lower part of the nested combined type tower crane section in the upper foundation bearing platform; step six, mounting the small-sized tower crane on a small-lattice tower crane section of the nested combined tower crane section, and connecting the small-sized tower crane section with a mounting sleeve of the inner mounting assembly through a bolt to carry out underground part construction; and seventhly, removing the small-size tower crane after the underground part construction is finished, replacing the large-size tower crane to be arranged on the large lattice tower crane section of the nested combined tower crane section and connected with the mounting lug of the outer mounting component and the L-shaped mounting plate through the pin shaft, and carrying out the above-ground part construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204590059U (en) * | 2015-01-23 | 2015-08-26 | 福建开辉机械工程有限公司 | A kind of combined type tower-crane foundation structure |
| CN107299643A (en) * | 2017-07-10 | 2017-10-27 | 杭州江润科技有限公司 | Steel lattice column combined type tower crane foundation structure in foundation pit and construction method |
| CN207659983U (en) * | 2017-12-20 | 2018-07-27 | 广东庞源工程机械有限公司 | A kind of steel-pipe pile steel construction cushion cap tower crane foundation structure |
| CN110700303A (en) * | 2019-10-12 | 2020-01-17 | 重庆建工建筑产业技术研究院有限公司 | Pile foundation profile steel combined tower crane foundation construction method |
| CN213508552U (en) * | 2020-08-14 | 2021-06-22 | 杭州通达集团有限公司 | Nested shared foundation of big and small tower cranes |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204590059U (en) * | 2015-01-23 | 2015-08-26 | 福建开辉机械工程有限公司 | A kind of combined type tower-crane foundation structure |
| CN107299643A (en) * | 2017-07-10 | 2017-10-27 | 杭州江润科技有限公司 | Steel lattice column combined type tower crane foundation structure in foundation pit and construction method |
| CN207659983U (en) * | 2017-12-20 | 2018-07-27 | 广东庞源工程机械有限公司 | A kind of steel-pipe pile steel construction cushion cap tower crane foundation structure |
| CN110700303A (en) * | 2019-10-12 | 2020-01-17 | 重庆建工建筑产业技术研究院有限公司 | Pile foundation profile steel combined tower crane foundation construction method |
| CN213508552U (en) * | 2020-08-14 | 2021-06-22 | 杭州通达集团有限公司 | Nested shared foundation of big and small tower cranes |
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