CN114525877B - Stadium combined roof based on large cantilever inclined triangular truss and construction method - Google Patents
Stadium combined roof based on large cantilever inclined triangular truss and construction method Download PDFInfo
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- CN114525877B CN114525877B CN202210338038.4A CN202210338038A CN114525877B CN 114525877 B CN114525877 B CN 114525877B CN 202210338038 A CN202210338038 A CN 202210338038A CN 114525877 B CN114525877 B CN 114525877B
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- 238000010276 construction Methods 0.000 title claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims description 12
- 239000002131 composite material Substances 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
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- 238000009435 building construction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/08—Vaulted roofs
- E04B7/10—Shell structures, e.g. of hyperbolic-parabolic shape; Grid-like formations acting as shell structures; Folded structures
- E04B7/105—Grid-like structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
- E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
- E04H3/14—Gymnasiums; Other sporting buildings
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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- Y02B10/10—Photovoltaic [PV]
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Abstract
The invention discloses a stadium combined roof based on large cantilever inclined triangular trusses and a construction method thereof, wherein the stadium combined roof comprises a plurality of main trusses and a plurality of elevation trusses, an arch structure is arranged between two adjacent main trusses, and a wall frame is arranged between two adjacent elevation trusses; the main truss and the elevation truss are triangular trusses, the upper chord member of the main truss and the lower chord member of the main truss are variable cross-section members, and an inclined included angle alpha is formed between the upper chord member and the lower chord member; the arch structure comprises an arch and a plurality of purlines; the construction method comprises the following steps: 1. hoisting the vertical truss; 2. hoisting the lower ring truss section; 3. hoisting a main truss; 4. hoisting the upper ring truss section; 5. assembling and hoisting an arch structure; and assembling and hoisting the six-wall frame. The invention solves the problems of difficult positioning and large deformation of the large cantilever steel pipe truss, and ensures the engineering quality and the construction efficiency.
Description
Technical Field
The invention belongs to the technical field of stadium building construction, and particularly relates to a stadium combined roof based on a large cantilever inclined type triangular truss and a construction method.
Background
Stadium is generally by stadium, stadium and big stand three parts are constituteed, and stadium class building is large-span, because steel construction has light in weight, shock resistance is good, environmental protection, building style advantage such as nimble, consequently, wide application in stadium class building, stadium roof is space truss structure mostly. The room cover around the large stand of the stadium is a space steel pipe truss ceiling, the structural system of the space steel pipe truss steel awning is complex, and the steel structure is deepened and difficult to manufacture and install. The heaviest main truss of the space circular tube truss steel awning is as heavy as tens of hundred tons, the lifting capacity of the general tower crane is insufficient, the whole lifting can not be carried out, the conventional method only comprises the step of erecting a bearing scaffold overhead assembly, but the step of erecting a full framing scaffold overhead assembly is that the scaffold amount is large, the high-altitude workload is large, the construction period is not easy to guarantee, and the safety management is a difficult point; in general, when the overhanging length of the steel pipe truss exceeds 20m, the steel pipe truss is called as a large overhanging steel pipe truss, and when in actual construction, the large overhanging steel pipe truss is difficult to position and position, and the single steel pipe truss is large in hoisting deformation, so that the engineering quality and the construction efficiency are seriously affected; therefore, a stadium combined roof based on a large cantilever inclined type triangular truss and a construction method thereof should be provided.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the stadium combined roof based on the large cantilever inclined type triangular truss, which has simple structure and reasonable design, solves the technical problems of difficult positioning and positioning of the large cantilever steel pipe truss and large deformation of the steel pipe truss hoisting, and ensures engineering quality and construction efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme: stadium combination roof based on big inclined type triangular truss encorbelments, its characterized in that: the vertical face truss comprises a plurality of main trusses which are circumferentially distributed at intervals and a plurality of vertical face trusses which are connected with the main trusses in a one-to-one correspondence manner, wherein the outer sides of two adjacent main trusses are connected through an upper ring truss section, the bottom ends of two adjacent vertical face trusses are connected through a lower ring truss section, an arch structure is arranged between two adjacent main trusses, and a wall frame is arranged between two adjacent vertical face trusses; the main truss and the elevation truss are triangular trusses, an upper chord member of the main truss and a lower chord member of the main truss are variable cross section rods, an inclined included angle alpha is formed between the upper chord member and the lower chord member, the value range of the inclined included angle alpha is 4-6 degrees, the main truss is arranged at the top end of the upright post, and the value range of the horizontal distance between the overhanging end of the main truss and the inner side surface of the upright post is 20-30 m; the arch structure comprises an arch and a plurality of purlines which are arranged in parallel and installed at the top of the arch, and the arch comprises a support frame, a first arch unit which is installed on the support frame and is close to the fixed end of the main truss, and a second arch unit which is close to the overhanging end of the main truss.
Foretell stadium combination room lid based on big inclined type triangular truss that encorbelments, its characterized in that: the facade truss includes three main chords and is used for connecting three the facade truss web member of main chords, three the bottom of main chords all be provided with spherical node and with the connecting rod that spherical node is connected, three the connecting rod forms a link that is the triangular pyramid structure, the bottom of link is provided with hemispherical node, hemispherical node fixed mounting is in the outside of stand, the top of facade truss with the stiff end fixed connection of main truss.
Foretell stadium combination room lid based on big inclined type triangular truss that encorbelments, its characterized in that: the utility model discloses a post, including the top of post, the top of post is provided with the embedded bar of platform support and two levels layout and be located platform support top, the top surface of platform support with pre-buried right angle shape steel sheet between the lateral surface of post, hemisphere node fixed mounting is in on the right angle shape steel sheet, be close to two of post one side spherical node respectively with two pre-buried pole fixed connection, the top of post is provided with two sets of respectively be used for with two down chord member fixed connection's post top pre-buried subassembly, post top pre-buried subassembly includes first post top built-in fitting and second post top built-in fitting.
Foretell stadium combination room lid based on big inclined type triangular truss that encorbelments, its characterized in that: the first arch centering unit comprises two bottom radial rods parallel to the arrangement direction of the main truss and a plurality of arc rods which are arranged in parallel and are arranged on the two bottom radial rods, and the second arch centering unit comprises a plurality of arc frames which are arranged in parallel and a connecting frame for connecting the adjacent two arc frames.
Foretell stadium combination room lid based on big inclined type triangular truss that encorbelments, its characterized in that: the support frame includes two parallel first top radial pole that just lie in respectively of arc pole both ends top and install in a plurality of the radial pole in second top at arc pole middle part, be provided with a plurality of landing leg groups of laying along its length direction equidistant on the radial pole in first top, the landing leg group is including three landing leg that is regular triangular pyramid and lay, and three the equal fixed mounting in top of landing leg is in on the radial pole in first top, wherein two the bottom of landing leg is connected respectively in adjacent two the bottom of arc pole, another the bottom of landing leg is connected on the radial pole in bottom, the radial pole in second top with be connected through a plurality of diagonal braces between the radial pole in bottom.
Foretell stadium combination room lid based on big inclined type triangular truss that encorbelments, its characterized in that: the purlines are arranged in parallel and are fixedly connected with the first top radial rod and the second top radial rod.
The invention also provides a construction method of the stadium combined roof based on the large cantilever inclined triangular truss, which is characterized in that: the construction method comprises the following steps:
step one, hoisting a vertical truss:
sequentially hoisting a plurality of vertical face trusses, and respectively connecting the plurality of vertical face trusses to the outer sides of a plurality of upright posts which are distributed in a circumferential equidistant manner;
step two, hoisting the lower ring truss section:
sequentially hoisting a plurality of lower ring truss sections, and fixedly connecting the bottom ends of any two adjacent vertical face trusses through the lower ring truss sections;
step three, hoisting a main truss:
sequentially hoisting a plurality of main trusses, respectively connecting the plurality of main trusses to a plurality of vertical face trusses, and completing the fixed connection between the plurality of main trusses and a plurality of upright posts;
hoisting the upper ring truss section:
sequentially hoisting a plurality of upper ring truss sections, so that the top ends of any two adjacent vertical face trusses are fixedly connected through the upper ring truss sections;
step five, assembling and hoisting an arch structure:
the assembling and hoisting methods of a plurality of arch structures are the same, and the assembling and hoisting method of any arch structure comprises the following steps:
step 501, assembling the arch frame structure to form four independent arch frame lifting units, wherein the four arch frame lifting units are respectively a first arch frame lifting unit, a second arch frame lifting unit, a third arch frame lifting unit and a fourth arch frame lifting unit which are sequentially connected from the outer side to the inner side of a stadium;
step 502, sequentially hoisting a first arch hoisting unit, a second arch hoisting unit, a third arch hoisting unit and a fourth arch hoisting unit according to the sequence of sequentially connecting the outer side to the inner side of the stadium, and completing the fixed connection between two adjacent arch hoisting units;
step six, assembling and hoisting the wall frame:
the assembly and hoisting methods of a plurality of wall frames are the same, and any one of the assembly and hoisting methods of the wall frames comprises the following steps:
step 601, splicing any one of the wall frames to form four wall frame hoisting units, wherein the four wall frame hoisting units are respectively a first wall frame hoisting unit, a second wall frame hoisting unit, a third wall frame hoisting unit and a fourth wall frame hoisting unit which are sequentially distributed along the circumferential direction of a stadium;
step 602, sequentially lifting a first wall frame lifting unit, a second wall frame lifting unit, a third wall frame lifting unit and a fourth wall frame lifting unit, and completing any one of the fixed connection between the top end of the wall frame lifting unit and the upper ring truss section, and any one of the fixed connection between the bottom end of the wall frame lifting unit and the lower ring truss section.
The construction method of the stadium combined roof based on the large cantilever inclined type triangular truss is characterized by comprising the following steps of: and thirdly, hoisting the main truss by a 630t crawler crane in a hoisting mode of four-point hoisting, and adjusting by a guide chain.
The construction method of the stadium combined roof based on the large cantilever inclined type triangular truss is characterized by comprising the following steps of: in step 502, a 300t crawler crane arranged outside a stadium is used for hoisting a first arch lifting unit and a second arch lifting unit, a 230t crawler crane arranged inside the stadium is used for hoisting a third arch lifting unit and a fourth arch lifting unit, and after the hoisting of two adjacent arch lifting units is completed, the fixed connection is performed on the break point in time.
The construction method of the stadium combined roof based on the large cantilever inclined type triangular truss is characterized by comprising the following steps of: in step 602, a 260t crawler crane and a 130t crawler crane are adopted for hoisting simultaneously, and the 260t crawler crane and the 130t crawler crane are arranged outside a stadium; when the first wall frame lifting unit, the second wall frame lifting unit, the third wall frame lifting unit and the fourth wall frame lifting unit are sequentially lifted, any one wall frame lifting unit is required to be lifted to a two-layer platform of a stadium by adopting 130t crawler cranes, then a lifting hook of a 260t crawler crane penetrates through an upper ring truss section to continuously lift any one wall frame lifting unit, and a guide chain is adopted to be matched with the 260t crawler crane to pull any one wall frame lifting unit into the position between the upper ring truss section and a lower ring truss section.
Compared with the prior art, the invention has the following advantages:
1. the invention forms a radial and annular combined roof by constructing a plurality of main trusses, a plurality of vertical face trusses, a plurality of upper ring truss sections, a plurality of lower ring truss sections, a plurality of arch structures and a plurality of wall frames together.
2. The main truss comprises an upper chord member, a lower chord member and a main truss web member, wherein the upper chord member and the lower chord member are variable-section rods, an inclined included angle is formed between the upper chord member and the lower chord member, and in actual construction, the upper chord member, the lower chord member and the main truss web member are steel pipe members, the connecting nodes of the steel pipe members are intersecting nodes, the variable-section rods comprise large-diameter rod sections positioned in the middle and small-diameter rod sections connected with the two ends of the large-diameter rod sections, the top ends of the large-diameter rod sections and the upright posts are provided with an inclined included angle between the upper chord member and the lower chord member, and the inclined included angle alpha is 4-6 degrees.
3. The arch structure is formed by combining the arch frame and the purlines, the arch frame comprises the supporting frame, the first arch frame unit and the second arch frame unit, the arch frame is not a simple triangular arch frame, but is a single-tube arch frame without a lower chord member, the weight is light, the rigidity is good, and the steel tube consumable is saved.
4. When the assembling and hoisting of the arch structure are carried out in the construction method, the arch structure is assembled into four independent arch hoisting units on the ground, and then the four independent arch hoisting units are hoisted in sequence, so that the assembling accuracy of the arch structure is improved and controlled, and the accuracy of the installation position of the arch structure can be ensured.
In summary, the invention provides a stadium combined roof based on a large cantilever inclined triangular truss, which solves the technical problems of difficult positioning and positioning of the large cantilever steel pipe truss and large deformation of the steel pipe truss in hoisting, and ensures engineering quality and construction efficiency.
The invention is described in further detail below with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic view of the structure of the assembled roof of the present invention.
FIG. 2 is a schematic illustration of the connection of the main truss, the elevation truss, the upper ring truss section, the lower ring truss section, the arch structure and the wall frame of the composite roof of the present invention.
Fig. 3 is a schematic structural view of the main truss and its hanging point layout according to the present invention.
FIG. 4 is a schematic diagram of the connection of the main truss, the elevation truss and the upright post according to the present invention.
Fig. 5 is a schematic structural view of an arch structure according to the present invention.
Fig. 6 is a schematic structural diagram of a first arch lifting unit and a lifting point layout of the first arch lifting unit.
Fig. 7 is a schematic structural diagram of a second arch lifting unit and a lifting point layout of the second arch lifting unit.
Fig. 8 is a schematic structural view of a third arch lifting unit and a lifting point layout of the third arch lifting unit.
Fig. 9 is a schematic structural view of a fourth arch lifting unit and a lifting point layout of the fourth arch lifting unit.
Fig. 10 is a flow chart of the construction method of the present invention.
Reference numerals illustrate:
1-a main truss; 1-upper chord; 1-2-bottom chords;
1-3-main truss web members; 2-a facade truss; 2-1-main chord;
2-facade truss web members; 2-3-spherical nodes; 2-4-connecting rod;
2-5-hemispherical nodes; 3-upper ring truss segments; 4-lower ring truss segments;
5-wall frame; 6, an arch frame; 6-1-a first top radial bar;
6-1-2-a second top radial bar; 6-1-3-supporting legs; 6-2-1-bottom radial bars;
6-2-arc rods; 6-3-1-arc frames; 6-3-2-connecting frames;
6-4, a circumferential support rod; 7, stand columns; 7-1, a platform support;
7-2, embedding bars; 7-3, a first column top embedded part;
7-4, second post embedded parts; 8-purlin; 9-guide chain.
Detailed Description
As shown in fig. 1 to 5, the stadium combined roof based on the large cantilever inclined triangular truss comprises a plurality of main trusses 1 which are distributed in a circumferential direction at intervals and a plurality of elevation trusses 2 which are connected with the main trusses 1 in a one-to-one correspondence manner, wherein the outer sides of two adjacent main trusses 1 are connected through upper ring truss sections 3, the bottom ends of the two adjacent elevation trusses 2 are connected through lower ring truss sections 4, an arch structure is arranged between the two adjacent main trusses 1, and a wall frame 5 is arranged between the two adjacent elevation trusses 2; the main trusses 1 and the elevation trusses 2 are triangular trusses, the main trusses 1 are arranged at the top ends of the upright posts 7, one end, close to the outer side of a stadium, of each main truss 1 is a fixed end of each main truss 1, each upper ring truss section 3 is connected to the fixed ends of two adjacent main trusses 1, one end, close to the inner side of the stadium, of each main truss 1 is a overhanging end of each main truss 1, the value range of the horizontal distance between the overhanging end of each main truss 1 and the inner side surface of each upright post 7 is 20-30 m, the upper chord member 1-1 of each main truss 1 and the lower chord member 1-2 of each main truss 1 are variable cross section rods, and an inclined included angle is formed between each upper chord member 1-1 and each lower chord member 1-2; the arch structure comprises an arch 6 and a plurality of purlines 8 which are arranged in parallel and installed at the top of the arch 6, and the arch 6 comprises a support frame, a first arch unit which is installed on the support frame and is close to the fixed end of the main truss 1, and a second arch unit which is close to the overhanging end of the main truss 1.
In this embodiment, as shown in fig. 1, by arranging a plurality of main trusses 1 and a plurality of elevation trusses 2, the plurality of main trusses 1 and the plurality of elevation trusses 2 are all distributed in a circumferential direction at intervals, the plurality of main trusses 1 are connected with the plurality of elevation trusses 2 in a one-to-one correspondence manner, the fixed ends of two adjacent main trusses 1 are connected through upper ring truss sections 3, the bottom ends of two adjacent elevation trusses 2 are connected through lower ring truss sections 4, the plurality of upper ring truss sections 3 jointly form an upper ring truss, the plurality of lower ring truss sections 4 jointly form a lower ring truss, at this time, the plurality of main trusses 1, the plurality of elevation trusses 2, an upper ring truss, a lower ring truss, a plurality of arch structures and a plurality of wall frames 5 jointly construct a roof which integrates the radial direction and the circumferential direction, because the main truss 1 and the elevation truss 2 are triangular trusses, an inclined included angle is formed between the upper chord member 1-1 and the lower chord member 1-2, namely the main truss 1 is inclined, and the horizontal distance between the overhanging end of the main truss 1 and the inner side surface of the upright post 7 is 20-30 m, namely the stadium combined roof is based on the large overhanging inclined triangular trusses, the technical problems that the large overhanging steel pipe truss is difficult to position and the deformation of the steel pipe truss is large are solved, the engineering quality and the construction efficiency are ensured, the stadium combined roof is combined with the large stand, the body quantity of the stadium is increased, the structure is stable, the weight is light, the shock resistance is good, and the environmental protection performance is good.
As shown in fig. 2, two adjacent main trusses 1, two adjacent facade trusses 2, one upper ring truss section 3, one lower ring truss section 4, one arch structure and one wall frame 5 together form a roof unit; in this embodiment, the number of main trusses 1 and the number of facade trusses 2 are both 30 truss, and by arranging two cross structural joints on the annular large stand, the two cross structural joints divide the combined roof into four independent parts, so that the number of upper ring truss sections 3 and the number of lower ring truss sections 4 are both 26 truss sections.
In this embodiment, the upper ring truss section 3 and the lower ring truss section 4 are also triangular trusses, and the three main chords of the upper ring truss section 3 and the three main chords of the lower ring truss section 4 are parallel to each other.
As shown in fig. 3 and 4, the main truss 1 includes an upper chord member 1-1, a lower chord member 1-2, and a main truss web member 1-3, where the upper chord member 1-1 and the lower chord member 1-2 are variable cross-section members, an inclined angle α is formed between the upper chord member 1-1 and the lower chord member 1-2, and the value range of the inclined angle α is 4 ° to 6 °, during actual construction, the upper chord member 1-1, the lower chord member 1-2, and the main truss web member 1-3 are all steel pipe members, and the connection nodes of the steel pipe members are intersecting nodes, and the variable cross-section members include a large-diameter member section located in the middle and a small-diameter member section connected to two ends of the large-diameter member section, and the top ends of the upright posts 7.
As shown in fig. 4, in this embodiment, by combining the arch 6 and the purlins 8 to form an arch structure, the arch 6 includes a support frame, a first arch unit and a second arch unit, and the arch 6 is not a simple triangle arch, but a single-tube arch without a lower chord, which is light in weight and good in rigidity, and saves material consumed by steel tubes.
In this embodiment, as shown in fig. 4, the elevation truss 2 includes three main chords 2-1 and an elevation truss web member 2-2 for connecting the three main chords 2-1, the bottom ends of the three main chords 2-1 are all provided with spherical nodes 2-3 and connecting rods 2-4 connected with the spherical nodes 2-3, the three connecting rods 2-4 form a connecting frame with a triangular pyramid structure, the bottom end of the connecting frame is provided with hemispherical nodes 2-5, the hemispherical nodes 2-5 are fixedly mounted on the outer side of the upright post 7, and the top end of the elevation truss 2 is fixedly connected with the fixed end of the main truss 1.
In this embodiment, the outside of stand 7 is provided with platform support 7-1 and two levels are laid and are located platform support 7-1 top's buried pole 7-2, platform support 7-1's top surface with pre-buried right angle shaped steel sheet between the lateral surface of stand 7, hemisphere node 2-5 fixed mounting is in on the right angle shaped steel sheet, be close to two spherical node 2-3 of stand 7 one side respectively with two buried pole 7-2 fixed connection.
In this embodiment, two sets of post top embedded components respectively used for being fixedly connected with the two lower chords 1-2 are arranged at the top end of the upright post 7, and each post top embedded component comprises a first post top embedded part 7-3 and a second post top embedded part 7-4.
In this embodiment, the large-diameter rod section of the variable-section rod is fixedly connected with the first post-top embedded part 7-3 and the second post-top embedded part 7-4 at the same time.
In this embodiment, as shown in fig. 5, the first arch unit includes two bottom radial bars 6-2-1 parallel to the arrangement direction of the main truss 1 and a plurality of arc bars 6-2-2 parallel to the bottom radial bars 6-2-1, and the second arch unit includes a plurality of arc frames 6-3-1 parallel to each other and a connection frame 6-3-2 for connecting the adjacent two arc frames 6-3-1.
In this embodiment, the support frame includes two first top radial rods 6-1-1 arranged in parallel and respectively located above two ends of the arc rods 6-2-2, and a second top radial rod 6-1-2 installed in the middle of the plurality of arc rods 6-2-2, where a plurality of leg groups distributed at equal intervals along the length direction of the first top radial rod 6-1 are disposed on the first top radial rod 6-1, the leg groups include three legs 6-1-3 distributed in a regular triangular pyramid, top ends of the three legs 6-1-3 are fixedly installed on the first top radial rod 6-1-1, bottom ends of two legs 6-1-3 are respectively connected to bottom ends of two adjacent arc rods 6-2-2, bottom ends of the other legs 6-1-3 are connected to the bottom radial rod 6-2-1, and the second top radial rod 6-1-2 and the bottom radial rod 6-1 are connected through a plurality of diagonal tie rods 6-1-4.
In this embodiment, a plurality of purlins 8 are arranged in parallel and are fixedly connected to the first top radial rod 6-1-1 and the second top radial rod 6-1-2.
In this embodiment, one end of the first top radial rod 6-1-1 and one end of the second top radial rod 6-1-2, which is close to the outside of the stadium, are fixedly provided with an annular supporting rod 6-4 parallel to the purline 8, and both ends of the annular supporting rod 6-4 and both ends of the purline 8 are fixedly connected with the upper chords 1-1 of the two adjacent main trusses 1 respectively.
As shown in fig. 6 to 10, the present invention also provides a construction method of a stadium combined roof based on a large cantilever inclined type triangular truss, the construction method comprising the steps of:
step one, hoisting a vertical truss:
sequentially hoisting a plurality of vertical face trusses 2, and respectively connecting the plurality of vertical face trusses 2 to the outer sides of a plurality of upright posts 7 which are distributed at equal intervals in the circumferential direction;
step two, hoisting the lower ring truss section:
sequentially hoisting a plurality of lower ring truss sections 4, so that the bottom ends of any two adjacent vertical face trusses 2 are fixedly connected through the lower ring truss sections 4;
step three, hoisting a main truss:
sequentially hoisting a plurality of main trusses 1, respectively connecting the plurality of main trusses 1 to a plurality of vertical face trusses 2, and completing the fixed connection between the plurality of main trusses 1 and a plurality of upright posts 7;
hoisting the upper ring truss section:
sequentially hoisting a plurality of upper ring truss sections 3, so that the top ends of any two adjacent vertical face trusses 2 are fixedly connected through the upper ring truss sections 3;
step five, assembling and hoisting an arch structure:
the assembling and hoisting methods of a plurality of arch structures are the same, and the assembling and hoisting method of any arch structure comprises the following steps:
step 501, assembling the arch frame structure to form four independent arch frame lifting units, wherein the four arch frame lifting units are respectively a first arch frame lifting unit, a second arch frame lifting unit, a third arch frame lifting unit and a fourth arch frame lifting unit which are sequentially connected from the outer side to the inner side of a stadium;
step 502, sequentially hoisting a first arch hoisting unit, a second arch hoisting unit, a third arch hoisting unit and a fourth arch hoisting unit according to the sequence of sequentially connecting the outer side to the inner side of the stadium, and completing the fixed connection between two adjacent arch hoisting units;
in this embodiment, through assembling the bow member structure into four independent bow member hoist and mount units subaerial earlier, afterwards, hoist four independent bow member hoist and mount units in proper order, be convenient for improve and control the accuracy that the bow member structure was assembled, can guarantee the accuracy of bow member structure mounted position.
In actual construction, before hoisting four independent arch centering hoisting units in sequence, marking the node positions on the main truss 1, and polishing and cleaning paint; and the space coordinate value of the node position is measured, the error is confirmed, if the deviation is too large, the reason is found out, and the adjustment is carried out when the ground is assembled as much as possible, so that four independent arch centering hoisting units are smoothly hoisted; meanwhile, an operation platform and a channel for installing the bulk rod pieces are arranged on the four independent arch hoisting units, a safety net is stretched below the hoisting positions, and two ends of the four independent arch hoisting units are directly penetrated and welded with the main truss 1.
Step six, assembling and hoisting the wall frame:
the assembly and hoisting methods of a plurality of wall frames are the same, and any one of the assembly and hoisting methods of the wall frames comprises the following steps:
step 601, splicing any one of the wall frames to form four wall frame hoisting units, wherein the four wall frame hoisting units are respectively a first wall frame hoisting unit, a second wall frame hoisting unit, a third wall frame hoisting unit and a fourth wall frame hoisting unit which are sequentially distributed along the circumferential direction of a stadium;
step 602, sequentially lifting a first wall frame lifting unit, a second wall frame lifting unit, a third wall frame lifting unit and a fourth wall frame lifting unit, and completing the fixed connection between the top end of any wall frame lifting unit and the upper ring truss section 3, and the fixed connection between the bottom end of any wall frame lifting unit and the lower ring truss section 4.
In the third embodiment, in the third step, a 630t crawler crane adopts a hoisting mode of hoisting at four points to hoist the main truss 1, and adopts a guide chain 9 to adjust.
In this embodiment, the guide chain 9 has a 20t chain.
In this embodiment, in step 502, a 300t crawler crane disposed outside a stadium is used to hoist a first arch lifting unit and a second arch lifting unit, and a 230t crawler crane disposed inside the stadium is used to hoist a third arch lifting unit and a fourth arch lifting unit, and after the hoisting of two adjacent arch lifting units is completed, the breakpoint is fixedly connected in time.
As shown in fig. 6 to 9, in actual construction, the weight of the four independent arch lifting units is in the range of 13 t-33 t, and the first arch lifting unit, the second arch lifting unit, the third arch lifting unit and the fourth arch lifting unit all need to be provided with different lifting point positions, are adjusted by adopting one guide chain 9 and are provided with safety ropes; it should be noted that, before hoisting, the four independent arch hoisting units all need to be lifted on the ground in advance, and then lifted after the hoisting angle is adjusted.
In the embodiment, in step 602, a 260t crawler crane and a 130t crawler crane are used for hoisting simultaneously, wherein the 260t crawler crane and the 130t crawler crane are both arranged outside a stadium; when the first wall frame lifting unit, the second wall frame lifting unit, the third wall frame lifting unit and the fourth wall frame lifting unit are sequentially lifted, 130t crawler cranes are needed to be used for lifting any one wall frame lifting unit to a two-layer platform of a stadium, then lifting hooks of 260t crawler cranes penetrate through the upper ring truss section 3 to continuously lift any one wall frame lifting unit, and a guide chain 9 is used for matching with the 260t crawler cranes to pull any one wall frame lifting unit into the space between the upper ring truss section 3 and the lower ring truss section 4 to be in place.
In this embodiment, space pipe truss steel awning is the structure of exposing, and pipe wall thickness, node are many, and the biggest length of encorbelmenting of main truss 1 is 30m, and the arch structure need weld on main truss 1, and the installation location through-hole is many, and on-the-spot assembly and installation accuracy requirement are high, have reduced big pipe truss class stadium steel construction installation risk and degree of difficulty encorbelmenting, have reduced the use amount of super-large construction machinery, have reduced the overhead working risk, have obtained good economic benefits.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent structural changes made to the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (10)
1. Stadium combination roof based on big inclined type triangular truss encorbelments, its characterized in that: the vertical face truss structure comprises a plurality of main trusses (1) which are circumferentially distributed at intervals and a plurality of vertical face trusses (2) which are connected with the main trusses (1) in a one-to-one correspondence manner, wherein the outer sides of two adjacent main trusses (1) are connected through an upper ring truss section (3), the bottom ends of two adjacent vertical face trusses (2) are connected through a lower ring truss section (4), an arch structure is arranged between two adjacent main trusses (1), and a wall frame (5) is arranged between two adjacent vertical face trusses (2); the main truss (1) and the elevation truss (2) are triangular trusses, an upper chord member (1-1) of the main truss (1) and a lower chord member (1-2) of the main truss (1) are variable cross section rods, an inclined included angle alpha is formed between the upper chord member (1-1) and the lower chord member (1-2), the value range of the inclined included angle alpha is 4-6 degrees, the main truss (1) is arranged at the top end of the upright post (7), and the value range of the horizontal distance between the overhanging end of the main truss (1) and the inner side surface of the upright post (7) is 20-30 m; the arch structure comprises an arch (6) and a plurality of purlines (8) which are arranged in parallel and installed at the top of the arch (6), wherein the arch (6) comprises a support frame, a first arch unit installed on the support frame and close to the fixed end of the main truss (1) and a second arch unit close to the overhanging end of the main truss (1).
2. The large cantilever inclined delta truss based stadium composite roof according to claim 1, wherein: the vertical face truss (2) comprises three main chords (2-1) and vertical face truss web members (2-2) used for connecting the three main chords (2-1), spherical nodes (2-3) and connecting rods (2-4) connected with the spherical nodes (2-3) are arranged at the bottom ends of the three main chords (2-1), the three connecting rods (2-4) form a connecting frame in a triangular pyramid structure, hemispherical nodes (2-5) are arranged at the bottom ends of the connecting frame, the hemispherical nodes (2-5) are fixedly mounted on the outer sides of the upright posts (7), and the top ends of the vertical face truss (2) are fixedly connected with the fixed ends of the main truss (1).
3. The large cantilever inclined delta truss based stadium composite roof according to claim 2, wherein: the novel embedded type concrete column is characterized in that a platform support (7-1) and two embedded bars (7-2) which are horizontally arranged and located above the platform support (7-1) are arranged outside the upright (7), a right-angle steel plate is embedded between the top surface of the platform support (7-1) and the outer side surface of the upright (7), hemispherical nodes (2-5) are fixedly installed on the right-angle steel plate, two spherical nodes (2-3) close to one side of the upright (7) are fixedly connected with the two embedded bars (7-2) respectively, two groups of column top embedded assemblies which are fixedly connected with the two lower chords (1-2) are arranged at the top end of the upright (7), and each column top embedded assembly comprises a first column top embedded part (7-3) and a second column top embedded part (7-4).
4. The large cantilever inclined delta truss based stadium composite roof according to claim 1, wherein: the first arch unit comprises two bottom radial rods (6-2-1) parallel to the arrangement direction of the main truss (1) and a plurality of arc rods (6-2-2) which are arranged in parallel and are arranged on the two bottom radial rods (6-2-1), and the second arch unit comprises a plurality of arc frames (6-3-1) which are arranged in parallel and a connecting frame (6-3-2) for connecting two adjacent arc frames (6-3-1).
5. The large cantilever inclined type triangular truss based stadium combined roof according to claim 4, wherein: the support frame comprises two first top radial rods (6-1-1) which are arranged in parallel and are respectively positioned above two ends of the arc-shaped rods (6-2-2) and a second top radial rod (6-1-2) which is arranged in the middle of the arc-shaped rods (6-2-2), a plurality of support leg groups which are arranged at equal intervals along the length direction of the first top radial rods (6-1-1) are arranged on the first top radial rods (6-1-1), the top ends of the three support legs (6-1-3) are fixedly arranged on the first top radial rods (6-1-1), the bottom ends of two support legs (6-1-3) are respectively connected to the bottom ends of the adjacent two arc-shaped rods (6-2-1), the bottom ends of the other support legs (6-1-3) are connected to the bottom radial rods (6-2-1), and the second top radial rods (6-1-3) are connected with the bottom radial rods (6-1-1) through inclined rods (6-1).
6. The large cantilever inclined type triangular truss based stadium combined roof according to claim 5, wherein: the purlines (8) are arranged in parallel and are fixedly connected with the first top radial rod (6-1-1) and the second top radial rod (6-1-2).
7. The construction method of the stadium combined roof based on the large cantilever inclined type triangular truss as set forth in claim 1, wherein the construction method comprises the following steps: the construction method comprises the following steps:
step one, hoisting a vertical truss:
sequentially hoisting a plurality of vertical face trusses (2), and respectively connecting the plurality of vertical face trusses (2) to the outer sides of a plurality of upright posts (7) which are distributed at equal intervals in the circumferential direction;
step two, hoisting the lower ring truss section:
sequentially hoisting a plurality of lower ring truss sections (4), and fixedly connecting the bottom ends of any two adjacent vertical face trusses (2) through the lower ring truss sections (4);
step three, hoisting a main truss:
sequentially hoisting a plurality of main trusses (1), respectively connecting the plurality of main trusses (1) to a plurality of vertical face trusses (2), and completing the fixed connection between the plurality of main trusses (1) and a plurality of upright posts (7);
hoisting the upper ring truss section:
sequentially hoisting a plurality of upper ring truss sections (3), and fixedly connecting the top ends of any two adjacent vertical face trusses (2) through the upper ring truss sections (3);
step five, assembling and hoisting an arch structure:
the assembling and hoisting methods of a plurality of arch structures are the same, and the assembling and hoisting method of any arch structure comprises the following steps:
step 501, assembling the arch frame structure to form four independent arch frame lifting units, wherein the four arch frame lifting units are respectively a first arch frame lifting unit, a second arch frame lifting unit, a third arch frame lifting unit and a fourth arch frame lifting unit which are sequentially connected from the outer side to the inner side of a stadium;
step 502, sequentially hoisting a first arch hoisting unit, a second arch hoisting unit, a third arch hoisting unit and a fourth arch hoisting unit according to the sequence of sequentially connecting the outer side to the inner side of the stadium, and completing the fixed connection between two adjacent arch hoisting units;
step six, assembling and hoisting the wall frame:
the assembly and hoisting methods of a plurality of wall frames are the same, and any one of the assembly and hoisting methods of the wall frames comprises the following steps:
step 601, splicing any one of the wall frames to form four wall frame hoisting units, wherein the four wall frame hoisting units are respectively a first wall frame hoisting unit, a second wall frame hoisting unit, a third wall frame hoisting unit and a fourth wall frame hoisting unit which are sequentially distributed along the circumferential direction of a stadium;
step 602, sequentially lifting a first wall frame lifting unit, a second wall frame lifting unit, a third wall frame lifting unit and a fourth wall frame lifting unit, and completing the fixed connection between the top end of any wall frame lifting unit and the upper ring truss section (3), and the fixed connection between the bottom end of any wall frame lifting unit and the lower ring truss section (4).
8. The construction method of the stadium combined roof based on the large cantilever inclined type triangular truss, as set forth in claim 7, is characterized in that: in the third step, a 630t crawler crane adopts a hoisting mode of four-point hoisting to hoist the main truss (1), and a guide chain (9) is adopted for adjustment.
9. The construction method of the stadium combined roof based on the large cantilever inclined type triangular truss, as set forth in claim 7, is characterized in that: in step 502, a 300t crawler crane arranged outside a stadium is used for hoisting a first arch lifting unit and a second arch lifting unit, a 230t crawler crane arranged inside the stadium is used for hoisting a third arch lifting unit and a fourth arch lifting unit, and after the hoisting of two adjacent arch lifting units is completed, the fixed connection is performed on the break point in time.
10. The construction method of the stadium combined roof based on the large cantilever inclined type triangular truss, as set forth in claim 7, is characterized in that: in step 602, a 260t crawler crane and a 130t crawler crane are adopted for hoisting simultaneously, and the 260t crawler crane and the 130t crawler crane are arranged outside a stadium; when the first wall frame lifting unit, the second wall frame lifting unit, the third wall frame lifting unit and the fourth wall frame lifting unit are sequentially lifted, 130t crawler cranes are needed to lift any one wall frame lifting unit to a two-layer platform of a stadium, then lifting hooks of 260t crawler cranes penetrate through the upper ring truss section (3) to continuously lift any one wall frame lifting unit, and a guide chain (9) is used for matching with the 260t crawler cranes to pull any one wall frame lifting unit into the position between the upper ring truss section (3) and the lower ring truss section (4).
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| CN114703969B (en) * | 2022-03-11 | 2024-09-03 | 山西四建集团有限公司 | Inclined triangular pyramid truss type frame structure and construction method thereof |
| CN115199051B (en) * | 2022-07-22 | 2024-04-16 | 中建八局新型建造工程有限公司 | Construction method of football field large-span awning |
| CN116695869B (en) * | 2023-06-30 | 2025-05-13 | 中建铁路投资建设集团有限公司 | Unsupported installation method for cantilever triangular plane truss structure |
| CN117779630B (en) * | 2024-01-08 | 2024-09-24 | 中交一航局城市交通工程有限公司 | Construction method of construction platform structure for high-altitude steel structure installation |
| CN117627386B (en) * | 2024-01-25 | 2024-04-09 | 北京建工集团有限责任公司 | Cable curtain wall truss and construction method thereof |
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