CN114457919A - Construction method capable of improving truss installation precision - Google Patents

Construction method capable of improving truss installation precision Download PDF

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Publication number
CN114457919A
CN114457919A CN202210110043.XA CN202210110043A CN114457919A CN 114457919 A CN114457919 A CN 114457919A CN 202210110043 A CN202210110043 A CN 202210110043A CN 114457919 A CN114457919 A CN 114457919A
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China
Prior art keywords
truss
distance
delta
construction method
method capable
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Pending
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CN202210110043.XA
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Chinese (zh)
Inventor
黎健
刘欢云
李保园
唐元斌
许帅
王耀周
华一豪
刘振宇
辛燃
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China Construction Steel Structure Wuhan Corp Ltd
China Construction Steel Structure Engineering Co Ltd
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China Construction Steel Structure Wuhan Corp Ltd
China Construction Steel Structure Engineering Co Ltd
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Priority to CN202210110043.XA priority Critical patent/CN114457919A/en
Publication of CN114457919A publication Critical patent/CN114457919A/en
Pending legal-status Critical Current

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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
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/32—Arched structures; Vaulted structures; Folded structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
    • E04B1/3511—Lift-slab; characterised by a purely vertical lifting of floors or roofs or parts thereof
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/32—Arched structures; Vaulted structures; Folded structures
    • E04B2001/3229—Arched structures; Vaulted structures; Folded structures constructed using a boom
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/32—Arched structures; Vaulted structures; Folded structures
    • E04B2001/3235—Arched structures; Vaulted structures; Folded structures having a grid frame
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
    • E04B2001/3588—Extraordinary methods of construction, e.g. lift-slab, jack-block using special lifting or handling devices, e.g. gantries, overhead conveying rails

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The invention discloses a construction method capable of improving truss installation precision, which comprises the following steps: step 1: constructing a base frame, wherein a plurality of support columns are arranged in the base frame, and the positions of the support columns in the base frame are absolute positions; and 2, step: pouring concrete into the base frame to form a concrete base, wherein the support columns in the concrete base are subjected to position deviation, deviation errors are generated relative to the absolute positions, and the positions of the support columns after deviation in the concrete base are relative positions; and step 3: adjusting the distribution among the trusses and the trusses which are arranged in parallel, wherein the offset error comprises an error delta X along the length direction of the trusses and an error delta Y along the distribution direction among the trusses which are arranged in parallel, the relative position is the truss installation reference point, the trusses are adjusted according to the delta X, and the distribution among the trusses which are arranged in parallel is adjusted according to the delta Y.

Description

Construction method capable of improving truss installation precision
Technical Field
The invention relates to the technical field of truss installation, in particular to a construction method capable of improving truss installation precision.
Background
In the antidetonation structural system, concrete structure can produce certain shrink when concrete placement is accomplished, also can be when the temperature variation contraction of concrete each point inconsistent, and the steel construction support system that leads to takes place relative displacement, and each point displacement inconsistent, leads to the distance between the post to increase or reduce, the off normal appears even. The longer the seismic isolation layer structure is, the larger the temperature difference is, the larger the relative offset is, so that the steel column is offset along with the change of factors such as temperature, the relative position of the steel column is different at different time points, the processing and installation of the truss needs to consume longer time, and the truss can be processed only according to an original coordinate system in the deepening design and processing. When the truss body system is connected with the steel support node, the column walls of the truss cannot be aligned, large length change or misalignment is formed, and the installation accuracy is too low.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a construction method capable of improving the installation precision of the truss, which can improve the installation precision of the truss and further improve the overall quality of a building.
The technical scheme adopted by the embodiment of the invention is as follows: a construction method capable of improving truss installation accuracy comprises the following steps: step 1: constructing and building a base frame, wherein a plurality of supporting column groups are arranged in the base frame, each supporting column group comprises two supporting columns, the two supporting columns are arranged along the X-axis direction, a truss is arranged between the two supporting columns, the distance between the two supporting columns is L1, the supporting column groups are arranged in parallel along the Y-axis direction, and the distance between two adjacent supporting column groups is K1; step 2: pouring concrete into the base frame to form a concrete base, wherein the support columns in the concrete base are subjected to position deviation along the X-axis direction and the Y-axis direction, the distance between two support columns after the deviation along the X-axis direction is L2, and the distance between two adjacent support column groups after the deviation along the Y-axis direction is K2; and step 3: adjusting the length of the truss so that the adjusted installation length of the truss is equal to L2; and adjusting the distance between a plurality of trusses arranged side by side so that the adjusted installation distance is equal to K2.
The construction method capable of improving the truss installation accuracy provided by the embodiment of the invention at least has the following beneficial effects:
1. during installation, the truss is adjusted according to the offset distance between the two support columns, so that the truss can adapt to the offset distance between the two support columns, the error of the connection position of the truss and the support columns during installation is reduced, and the installation accuracy is improved;
2. the two trusses arranged in parallel can be adjusted according to the distance between two adjacent supporting column groups, so that the distance between the two trusses arranged in parallel is more reasonable, and the mounting accuracy is improved;
3. when the truss is connected with the support column, the less time is needed for installation, and the construction time is saved.
According to some embodiments of the present invention, the truss comprises a plurality of truss units uniformly distributed along a length direction thereof, the truss units have a length L, an offset distance between two supporting columns along an X-axis direction after the offset is Δ X, and Δ X is L2-L1, and the length L is adjusted by an equal-share method to equally share the Δ X into each of the lengths L.
According to some embodiments of the present invention, when a plurality of the trusses arranged in parallel are sequentially and uniformly arranged between two of the supporting columns at intervals in the width direction thereof, the distance between two adjacent trusses is K, the offset amount of the distance between two of the supporting column groups in the Y-axis direction after the offset is Δ Y, and Δ Y is K2-K1, the distance K is adjusted by an equal-share method so as to equally share the Δ Y into each of the distances K.
According to some embodiments of the invention, the concrete base is an anti-seismic base, and the concrete base is provided with a pile foundation, a bearing platform, a bottom plate, a lower buttress, an anti-seismic support and an anti-seismic upper buttress from bottom to top in sequence.
According to some embodiments of the invention, further comprising step 4: and carrying out civil engineering on the concrete base, wherein the support columns are stacked at the shifted positions along with the progress of the civil engineering.
According to some embodiments of the invention, the civil engineering comprises a plurality of floors, and each floor is formed by splicing a structural column and a structural beam.
According to some embodiments of the invention, further comprising step 5: and after the civil engineering is completed, building the adjusted truss.
According to some embodiments of the invention, the truss is provided with adjusting sections at two ends, and the adjusting sections are used for smoothly mounting the truss on the supporting column.
According to some embodiments of the invention, the top end of the support column is provided with a connecting frame and a lifting device, the lifting device can lift the truss between the two connecting frames, adjusting spaces are respectively reserved between two ends of the truss and the two connecting frames, the adjusting spaces are adjusting sections, and connecting members are arranged in the adjusting sections to connect the truss and the two connecting frames.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a base frame according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of the deflection of four steel columns according to an embodiment of the present invention;
FIG. 3 is a schematic illustration of an installation location for a truss design according to an embodiment of the present invention;
FIG. 4 is a schematic view of the hoisting of a truss according to an embodiment of the invention;
FIG. 5 is a schematic diagram of the embodiment of the invention after the truss is hoisted;
FIG. 6 is a schematic view of the embodiment of the invention after the trusses are hoisted and connected by the adjusting sections;
FIG. 7 is a top view of a truss of an embodiment of the invention as it is being installed;
fig. 8 is a top view of the embodiment of the invention after the trusses are hoisted and connected by the adjusting sections.
Reference numerals: 100-a base frame; 110-support column; 111-a connecting frame; 112-a hoisting device; 200-truss; 210-a truss unit; 220-a conditioning section; 300-concrete foundation; 400-floor.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, 2 and 3, in some embodiments of the present invention, a construction method capable of improving truss installation accuracy includes:
step 1: constructing and building a base frame 100, wherein a plurality of supporting column groups are arranged in the base frame 100, each supporting column group comprises two supporting columns 110, the two supporting columns 110 are arranged along the X-axis direction, a truss 200 is arranged between the two supporting columns 110, the distance between the two supporting columns 110 is L1, the supporting column groups are arranged in parallel along the Y-axis direction, and the distance between two adjacent supporting column groups is K1;
step 2: pouring concrete into the base frame 100 to form a concrete base 300, wherein the support columns 110 in the concrete base 300 are offset in position along the X-axis direction and the Y-axis direction, the distance between the two support columns 110 after the offset along the X-axis direction is L2, and the distance between two adjacent support column groups after the offset along the Y-axis direction is K2;
and step 3: adjusting the length of truss 200 such that the adjusted installation length of truss 200 is equal to L2; the interval between the plurality of trusses 200 arranged in parallel is adjusted such that the adjusted installation interval is equal to K2.
The supporting column 110 may be a steel column, a concrete column, or a reinforced concrete column.
Specifically, when the installation space is left between both ends of the truss 200 and the two support columns 110, the length of the truss 200 itself is V1, and after the length of the truss 200 is adjusted, the length of the truss 200 is V2, and theoretically, when V2 ═ V1+ (L2-L1), the truss is in the most ideal state after adjustment, but in actual use, V2 can fluctuate within a certain range near V1+ (L2-L1), and it is only necessary that the distance between V2 and the installation space is equal to L2, and the installation length of the truss 200 after adjustment is the distance between V2 and the installation space.
During installation, the truss 200 is adjusted according to the offset distance between the two support columns 110, so that the truss 200 can adapt to the offset distance between the two support columns 110, the error of the connection position of the truss 200 and the support columns 110 during installation is reduced, and the installation accuracy is improved; the trusses 200 arranged in parallel can be adjusted according to the distance between the two adjacent supporting column groups, so that the distance between the trusses 200 arranged in parallel is more reasonable, and the installation accuracy is improved.
When the truss is connected with the support column, the less time is needed for installation, and the construction time is saved.
After the deviation calculation is finished by one truss 200, the deviation can be outwards diffused to the whole truss system from the truss 200, and the influence of factors such as a seismic isolation layer on the installation accuracy of the truss 200 can be effectively solved.
Referring to fig. 4, in some embodiments of the present invention, when the truss 200 is disposed between two support columns 110 along the length direction thereof, the truss 200 includes a plurality of truss units 210 uniformly distributed along the length direction thereof, the length of the truss unit 210 is L, the distance between the two support columns 110 after the offset along the X-axis direction is Δ X, and the length L is adjusted by an equal-share method so as to equally share the Δ X into each length L.
Specifically, when the supporting columns 110 are shifted, which is equivalent to moving in a plane, the height of the supporting columns does not change, the distance between the two supporting columns 110 changes, an error Δ X is generated, and when the truss 200 is placed between the two supporting columns 110 along the length direction of the truss, the error Δ X is added to the original length of the truss 200, so that the error Δ X is absorbed by the truss 200, and the truss 200 is more convenient to install.
Wherein, the truss 200 itself includes a plurality of truss units 210 uniformly arranged, the number of the truss units 210 is N, so the length of the truss unit 210 after adjustment is LRegulating deviceL + Δ X/N, and the total length L of the truss 200General assemblyN × L + Δ X. The length of each truss unit 210 of the truss 200 is still the same, so that the stress of each truss unit 210 in the truss 200 is more uniform, and the structural performance is better.
Referring to fig. 7 and 8, in some embodiments of the present invention, when a plurality of trusses 200 arranged in parallel are sequentially and uniformly spaced between two support columns 110 in a width direction thereof, a distance between two adjacent trusses 200 is K, an offset amount of the distance between two support column groups in a Y-axis direction after the offset is Δ Y, and Δ Y is K2-K1, the distance K is adjusted by an equal-share method to equally divide Δ Y into each distance K.
Specifically, when the supporting columns 110 are shifted, which is equivalent to moving in a plane, the height of the supporting columns does not change, the distance between the two supporting columns 110 changes, an error Δ Y is generated, and when the plurality of trusses 200 are sequentially and uniformly arranged between the two supporting columns 110 at intervals in the width direction, the error Δ Y is added to the total distance between the plurality of trusses 200, so that the error Δ Y is absorbed by the total distance between the plurality of trusses 200, and the trusses 200 are more convenient to install.
Wherein, the number of the trusses 200 between the two supporting columns 110 is M, so the distance between two adjacent trusses 200 after adjustment is KRegulating deviceK +. Δ Y/(M-1), and the total distance between the trusses 200 is KGeneral assembly(M-1) × K +. Δ Y. The distance between the two trusses 200 is still the same after adjustment, so that the stress of each truss 200 is more uniform, and the structural performance of the truss is better.
Hereinafter, for convenience of understanding, a specific earthquake-resistant system unit is exemplified, and it should be understood that the following is only an exemplary illustration and does not constitute a specific limitation of the present invention, and specifically the following:
referring to fig. 1 and 2, the earthquake-resistant structural unit has 4 steel columns, A, B, C, D in sequence, and the coordinates of the origin of coordinates (0, 0,0) are a (X1, Y1, Z1), B (X2, Y2, Z2), C (X3, Y3, Z3), and D (X4, Y4, Z4), which are absolute positions.
Concrete is poured at base frame 100, and the concrete setting back, because of the concrete engineering time is longer, along with the concrete setting and the collision or the shrink that temperature variation arouses, will lead to the steel column to take place certain skew, the offset of each steel column is respectively: a (Δ X1, Δ Y1,0), B (Δ X2, Δ Y1,0), C (Δ X3, Δ Y3,0), D (Δ X4, Δ Y4,0), the positions of the steel columns after being offset are relative positions, and the relative positions are respectively: a (X1 +. DELTA.X 1, Y1 +. DELTA.Y 1,0), B (X2 +. DELTA.X 2, Y2 +. DELTA.Y 2,0), C (X3 +. DELTA.X 3, Y3 +. DELTA.Y 3,0), D (X4 +. DELTA.X 4, Y4 +. DELTA.Y 4, 0).
And after the relative position of each steel column is determined, carrying out civil engineering, wherein each steel column is subjected to civil engineering on the relative position during the civil engineering, and the verticality of the installation of the steel column is ensured.
After the position of the steel column shifts along with civil engineering, the installation of the truss 200 can not be assembled according to the original coordinate system, but in the structural system of the truss 200 and the steel column, the relative position relationship between the truss 200 and the steel column is unchanged, and in order to eliminate the influence caused by contraction or extension in the earthquake-proof system, the truss 200 is assembled by taking A (X1 +. DELTA.X 1, Y1 +. DELTA.Y 1, Z1), B (X2 +. DELTA.X 2, Y2 +. DELTA.Y 2, Z2), C (X3 +. DELTA.X 3, Y3 +. DELTA.Y 3, Z3), D (X4 +. DELTA.X 4, Y4 +. DELTA. 4, Z4) as relative reference points.
Assuming that the trusses 200 between the columns have E trusses, each truss 200 has F sections, the pitch of the trusses 200 is G, and the length of the truss 200 sections is H.
The displacement error value of the steel column A and the steel column B in the X direction is delta X1-delta X2; the displacement error value of the steel column C and the steel column D in the X direction is delta X3-delta X4; the displacement error values of the steel column A and the steel column D in the Y direction are delta Y1-delta Y4; the displacement error values of the steel column B and the steel column C in the Y direction are delta Y2-delta Y3.
Referring to fig. 7 and 8, the end points of the truss 200 closest to the steel columns are respectively N1, N2, N3 and N4, the positions of four points respectively correspond to the four steel columns one by one, the error offset values in the X direction and the Y direction are finely adjusted by an equal-share method when the rest of the trusses 200 are assembled, and the adjustment ranges in the X direction and the Y direction are (Δ X1- Δ X2)/F and (Δ X3- Δ X4)/F; (. DELTA.Y 1-. DELTA.Y 4)/(E-1), (. DELTA.Y 2-. DELTA.Y 3)/(E-1), so the lengths of X toward truss 200 at both ends are H + (. DELTA.X 1-. DELTA.X 2)/F, H + (. DELTA.X 3-. DELTA.X 4)/F, respectively; the Y-direction distances of two ends of each truss 200 are G + (. DELTA.Y 1-. DELTA.Y 4)/(E-1) and G + (. DELTA.Y 2-. DELTA.Y 3)/(E-1) respectively, and after the trusses 200 with 4 corner points are determined, errors are eliminated step by step along the truss 200 direction.
Referring to fig. 3, in some embodiments of the present invention, the concrete foundation 300 is an anti-seismic foundation, and the concrete foundation 300 is provided with a pile foundation, a bearing platform, a bottom plate, a lower buttress, an anti-seismic support and an anti-seismic upper buttress in sequence from bottom to top.
Specifically, the whole shock absorption of the building is increased through the shock absorption support and the shock-proof upper buttress, and the shock absorption effect of the building is improved.
Referring to fig. 3, in some embodiments of the present invention, the method further comprises step 4: the concrete is built on the concrete foundation 300, and the support columns 110 are stacked in the shifted positions according to the progress of the building.
Specifically, the support columns 110 are stacked at opposite positions until reaching the height of the installation truss 200, and since the total support columns are directly stacked on the support columns 110 in the concrete base 300, the total support columns are not misaligned, and the overall load-bearing capacity is better. If the support columns 110 are stacked in an absolute position, the support columns 110 in the concrete base 300 will be offset from the absolute position due to the condensation of the concrete and will move to a relative position, resulting in the subsequent support columns 110 being stacked in an absolute position that will be misaligned with the support columns 110 in the concrete base 300 in a relative position, which may not be as well weighted as the total support columns stacked in a relative position.
Referring to fig. 3, in some embodiments of the present invention, the civil engineering includes a plurality of floors 400, and each floor 400 is formed by splicing structural columns and structural beams.
Specifically, the civil engineering refers to building a floor 400 structural column, a structural beam and the like on the concrete foundation 300 to build a building body, and improving the overall structural performance of the building through the support column 110.
Referring to fig. 4, 5 and 6, in some embodiments of the present invention, the method further includes step 5: after the civil work is completed, the adjusted truss 200 is built.
Specifically, after civil engineering, the truss 200 is built, so that the truss 200 is lapped, and the subsequent roof is convenient to manufacture.
Referring to fig. 4, 5 and 6, in some embodiments of the invention, the truss 200 is provided with adjustment segments 220 at both ends, and the adjustment segments 220 are used for smoothly mounting the truss 200 to the supporting column 110.
Specifically, the adjustment section 220 is arranged to enable a margin to be reserved between the truss 200 and the support column 110, and the positions of the truss 200 and the support column 110 can be adjusted through the margin during installation, so that construction is more convenient.
Referring to fig. 4, 5 and 6, in some embodiments of the present invention, the top end of the supporting column 110 is provided with the connecting frames 111 and the lifting device 112, the lifting device 112 can lift the truss 200 between the two connecting frames 111, and an adjusting space, that is, an adjusting section 220, is left between each of the two ends of the truss 200 and the two connecting frames 111, and the truss 200 is connected to the two connecting frames 111 by disposing a connecting member in the adjusting section 220.
Specifically, a welding position is reserved at the connecting end of the connecting frame 111, an adjusting section 220 is reserved at the connecting end of the truss 200, the connecting frame 111 is connected with the truss 200 by fitting the adjusting section 220 with the welding position, the connecting frame 111 is also of a truss 200 structure and is provided with a plurality of connecting truss units 210, the connecting truss units 210 can be just matched with the truss units 210 in the truss 200 to form a brand-new truss 200, and the overall structural performance of the roof is further enhanced.
Wherein, the adjusting section 220 between the connecting frame 111 on the supporting column 110 and the truss 200 is according to the theoretical length LTheory of thingsAnd +50mm processing, wherein the butt joint is a neat joint, and cutting is carried out at the intersecting end according to an intersecting line. Measuring the relative length between the actual column top attachment 111 and the truss 200, the site will beThe length of the adjustment section 220 is corrected, a certain welding gap amount is reserved, the adjustment section 220 is in smooth transition until installation is completed, so that the influence of structural deviation is minimized, and the relative installation accuracy of the truss 200 is guaranteed to meet design requirements as much as possible.
Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims (9)

1. A construction method capable of improving truss installation accuracy is characterized by comprising the following steps:
step 1: constructing and building a base frame (100), wherein a plurality of supporting column groups are arranged in the base frame (100), each supporting column group comprises two supporting columns (110), the two supporting columns (110) are arranged along the X-axis direction, a truss (200) is arranged between the two supporting columns (110), the distance between the two supporting columns (110) is L1, the supporting column groups are arranged in parallel along the Y-axis direction, and the distance between two adjacent supporting column groups is K1;
step 2: pouring concrete into the base frame (100) to form a concrete base (300), wherein the supporting columns (110) in the concrete base (300) are subjected to position deviation along the X-axis direction and the Y-axis direction, the distance between two adjacent supporting columns (110) after deviation along the X-axis direction is L2, and the distance between two adjacent supporting column groups after deviation along the Y-axis direction is K2;
and step 3: adjusting the length of the truss (200) so that the adjusted installation length of the truss (200) is equal to L2; adjusting the spacing between a plurality of said trusses (200) arranged side by side such that the adjusted installation spacing is equal to K2.
2. The construction method capable of improving the truss installation accuracy according to claim 1, wherein: the truss (200) comprises a plurality of truss units (210) which are uniformly distributed along the length direction of the truss units, the length of each truss unit (210) is L, the offset of the distance between two supporting columns (110) along the X-axis direction after offset is delta X, the delta X is L2-L1, and the length L is adjusted through an equal-share method so as to equally divide the delta X into each length L.
3. The construction method capable of improving the truss installation accuracy according to claim 1, wherein: the distance between two adjacent trusses (200) is K, the offset of the distance between the two supporting column groups along the Y-axis direction after the distance is offset is delta Y, the delta Y is K2-K1, and the distance K is adjusted through an equal-share method so that the delta Y can be equally divided into each distance K.
4. A construction method capable of improving truss installation accuracy according to any one of claims 1 to 3, wherein: the concrete base (300) is an anti-seismic base, and the concrete base (300) is sequentially provided with a pile foundation, a bearing platform, a bottom plate, a lower buttress, an anti-seismic support and an anti-seismic upper buttress from bottom to top.
5. A construction method capable of improving the truss installation accuracy according to any one of claims 1 to 3, wherein: further comprising the step 4: and carrying out civil work on the concrete base (300), wherein the supporting columns (110) are stacked at the shifted positions along with the progress of the civil work.
6. The construction method capable of improving the truss installation accuracy according to claim 5, wherein: the civil engineering comprises a plurality of floors (400), and each floor (400) is formed by splicing structural columns and structural beams.
7. The construction method capable of improving the truss installation accuracy according to claim 5, wherein: further comprising the step 5: and after the civil engineering is completed, building the adjusted truss (200).
8. The construction method capable of improving the truss installation accuracy according to claim 7, wherein: adjusting sections (220) are arranged at two ends of the truss (200), and the adjusting sections (220) are used for smoothly mounting the truss (200) to the supporting columns (110).
9. The construction method capable of improving the truss installation accuracy according to claim 8, wherein: the top end of the supporting column (110) is provided with a connecting frame (111) and a lifting device (112), the lifting device (112) can lift the truss (200) between the two connecting frames (111), adjusting spaces are reserved between the two ends of the truss (200) and the two connecting frames (111), the adjusting spaces are adjusting sections (220), and connecting pieces are arranged in the adjusting sections (220) to connect the truss (200) and the two connecting frames (111).
CN202210110043.XA 2022-01-29 2022-01-29 Construction method capable of improving truss installation precision Pending CN114457919A (en)

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Citations (5)

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Publication number Priority date Publication date Assignee Title
CN103410335A (en) * 2013-08-30 2013-11-27 南通八建集团有限公司 Front-supporting rear-pulling large cantilevered beam overall-embedded type hoisting construction method
CN205804794U (en) * 2016-07-21 2016-12-14 中铁二十四局集团有限公司 It is suitable for the awning improving petal type overhanging steel structure awning installation accuracy construction
WO2017121315A1 (en) * 2016-01-12 2017-07-20 广州机施建设集团有限公司 Construction method for building truss and floor slab
CN107338963A (en) * 2017-07-17 2017-11-10 中建三局第建设工程有限责任公司 A kind of super-span truss string structure construction method for hanging outside the venue
CN109487912A (en) * 2018-11-30 2019-03-19 北京市建筑工程研究院有限责任公司 A kind of construction method of super-span truss-string-structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103410335A (en) * 2013-08-30 2013-11-27 南通八建集团有限公司 Front-supporting rear-pulling large cantilevered beam overall-embedded type hoisting construction method
WO2017121315A1 (en) * 2016-01-12 2017-07-20 广州机施建设集团有限公司 Construction method for building truss and floor slab
CN205804794U (en) * 2016-07-21 2016-12-14 中铁二十四局集团有限公司 It is suitable for the awning improving petal type overhanging steel structure awning installation accuracy construction
CN107338963A (en) * 2017-07-17 2017-11-10 中建三局第建设工程有限责任公司 A kind of super-span truss string structure construction method for hanging outside the venue
CN109487912A (en) * 2018-11-30 2019-03-19 北京市建筑工程研究院有限责任公司 A kind of construction method of super-span truss-string-structure

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