CN114775427B - Method for installing assembled type stiff framework for block reinforced bar part - Google Patents
Method for installing assembled type stiff framework for block reinforced bar part Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 72
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 64
- 238000009434 installation Methods 0.000 claims abstract description 37
- 238000010276 construction Methods 0.000 claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 87
- 239000010959 steel Substances 0.000 claims description 87
- 238000005452 bending Methods 0.000 claims description 17
- 230000002787 reinforcement Effects 0.000 claims description 7
- 208000037170 Delayed Emergence from Anesthesia Diseases 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 description 19
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009439 industrial construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention relates to the technical field of bridge construction, in particular to an assembly type stiff skeleton installation method for block reinforced bar parts. The method comprises the following steps: step one, splitting the stiffness framework into a plurality of block stiffness frameworks, and lifting the horizontal truss sheets and the reinforcing steel bar meshes into an assembly space of an assembly jig frame; inserting the vertical truss sheets into the stacked reinforcing steel mesh sheets and the horizontal truss sheets according to the set positions; step three, adjusting the vertical positions of the reinforcing steel mesh and the horizontal truss sheets, and fixedly connecting the vertical truss sheets and the horizontal truss sheets to form a required block stiffness framework; step four, manufacturing a block stiffness framework in a factory according to the step one, the step two and the step three, and transporting to a construction site; and fifthly, assembling and folding the block stiffness frameworks in sequence, and installing connecting truss sheets between adjacent block stiffness frameworks to connect the adjacent block stiffness frameworks into a whole after the assembling is completed. The method for installing the stiff framework is simple, and ensures the installation precision of the stiff framework.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to an assembly type stiff skeleton installation method for block reinforced bar parts.
Background
The cable tower steel bar generally adopts a field loose binding construction process, the steel bar construction precision is poor, the high-altitude hoisting and operation risks are high, along with the development of modern technology, in order to further improve the industrial construction level of the cable tower, more and more cable tower steel bars adopt a steel bar part construction process, for the cable tower with larger gradient of tower limbs, the steel bar part is integrally deformed greatly when being connected on the steel bar part tower, in order to improve the rigidity of the connecting working condition part on the steel bar part tower, a stiffness framework is required to be arranged in the part, for the interlocking type stirrup reinforcement form, the steel bar part adopts a reinforcing bar block forming process, stirrups are processed into reinforcing bar meshes in factories, the reinforcing bar meshes are assembled into the reinforcing bar part and are transported to a main tower, the whole assembly and hoisting are carried out below the tower to form a bridge tower reinforcing bar framework, and then the subsequent template construction, concrete pouring and the like are carried out. For the construction process of scattered binding of the steel bars, the construction of the stiff skeleton is carried out firstly and then the steel bars are constructed, the construction of the steel bars does not affect the construction of the stiff skeleton, the steel bar net sheet of the steel bar part is firstly molded, the construction of the steel bar net sheet and the main steel bar produces interference to the installation of the stiff skeleton, and the construction of the stiff skeleton of the steel bar part is difficult.
Disclosure of Invention
The invention aims to solve the defects of the background technology and provides an assembly type stiff skeleton installation method for a block steel bar part.
The technical scheme of the invention is as follows: an assembly type stiff skeleton installation method for block reinforced bar parts comprises the following steps:
step one, splitting a stiffness framework into a plurality of block stiffness frameworks according to the structural shape of a segment steel bar part, manufacturing horizontal truss sheets, vertical truss sheets and connecting truss sheets contained in the block stiffness frameworks in a factory, building an assembly jig, lifting the horizontal truss sheets and forming steel bar meshes of the block steel bar part into an assembly space of the assembly jig;
step two, lifting the vertical truss sheets to an assembling space of an assembling jig frame, inserting the vertical truss sheets into the stacked reinforcing steel bar net sheets and the horizontal truss sheets according to a set position, and positioning the vertical truss sheets;
thirdly, adjusting the vertical position and the horizontal position of the reinforcing steel bar net sheet and the horizontal truss sheet by utilizing the assembly jig frame, fixedly connecting the vertical truss sheet and the horizontal truss sheet to form a required block stiffness framework, and connecting the reinforcing steel bar net sheet and the block stiffness framework into a whole;
step four, manufacturing residual block stiffness frameworks in factories according to the step one, the step two and the step three, and sequentially transporting the residual block stiffness frameworks to a construction site;
and fifthly, assembling and folding the block stiffness frameworks in sequence, and installing connecting truss sheets between adjacent block stiffness frameworks to connect the adjacent block stiffness frameworks into a whole after the assembling is completed.
According to the method for installing the assembled stiff skeleton of the block steel bar part, in the first step, the method for lifting the steel bar net sheet and the horizontal truss sheet into the assembly space of the assembly jig comprises the following steps: lifting the reinforcing steel bar meshes and the horizontal truss sheets into an assembling space of the assembling jig frame, and stacking the reinforcing steel bar meshes according to the mode that the reinforcing steel bar meshes with set layers are arranged between two adjacent horizontal truss sheets.
According to the method for installing the assembled stiff skeleton of the block steel bar part, in the second step, the method for inserting the vertical truss sheet into the horizontal truss sheet comprises the following steps: the horizontal truss sheet comprises a square frame, a first diagonal rod is welded between two long rods of the square frame, and a gap is reserved between the first diagonal rod and two short rods of the square frame;
and lifting the two groups of vertical truss sheets, and penetrating the two groups of vertical truss sheets into gaps at two ends of the first diagonal rod respectively.
According to the method for installing the assembled type stiff skeleton of the block steel bar part, in the third step, the method for adjusting the vertical positions of the steel bar net sheet and the horizontal truss sheet comprises the following steps: the assembly jig frame is used for lifting the steel bar meshes and the horizontal truss sheets, so that the steel bar meshes are distributed on the vertical truss sheets at equal intervals, and the horizontal truss sheets are distributed on the vertical truss sheets according to the set positions.
According to the method for installing the assembled stiff skeleton of the block steel bar part provided by the invention, the method for lifting the steel bar net sheet and the horizontal truss sheet by using the assembly jig comprises the following steps of: the horizontal truss sheet comprises a plurality of cantilever beams which are arranged along the width direction of the square frame; the cantilever beams are arranged on the square frame at intervals along the length direction of the square frame, and a plurality of angle steels arranged along the length direction of the square frame are distributed on the beam body of the cantilever beams, which exceeds the square frame;
when the horizontal truss sheet is lifted by utilizing the assembly jig frame, the horizontal truss sheet and the adjacent steel bar meshes are welded and fixed into a whole, and the steel bar meshes are lifted by utilizing the assembly jig frame to vertically lift the horizontal truss sheet
According to the method for installing the assembled stiff framework for the block steel bar part, in the fifth step, the method for assembling and folding the block stiff framework sequentially comprises the following steps: sequentially numbering the block stiffness skeletons to be folded according to the assembling positions, folding the block stiffness skeletons corresponding to the odd numbers in place, and folding the block stiffness skeletons corresponding to the even numbers in place; or the even numbered corresponding block stiffness skeletons are folded in place, and then the odd numbered corresponding block stiffness skeletons are folded in place.
According to the method for installing the assembled type stiff frameworks for the block reinforcing steel bar parts, in the fifth step, the method for installing the connecting truss sheets between the adjacent block stiff frameworks comprises the following steps: and arranging connection truss sheets between two adjacent block stiffness skeletons, and connecting two ends of the connection truss sheets with two groups of adjacent horizontal truss sheets at the same horizontal height respectively.
According to the method for installing the assembled stiff framework for the block steel bar part, provided by the invention, two ends of the connecting truss sheet are respectively connected with two groups of adjacent horizontal truss sheets at the same horizontal height, and the method comprises the following steps: the connecting truss sheet is of a plane truss sheet structure and comprises two bending rods corresponding to the corners of the stiff framework; a connecting rod for connecting inflection points of the two bending rods is arranged between the two bending rods, and the second inclined rods are respectively arranged at two sides of the connecting rod and are used for connecting the two bending rods;
and respectively welding and fixing the end parts of the two bending rods in the connecting truss sheet to the short rods on two sides of the square frame of the horizontal truss sheet to finish the connection of the connecting truss sheet and the horizontal truss sheet.
According to the method for installing the assembled type stiff skeleton of the block reinforcing steel bar part, in the first step, the method for manufacturing the vertical truss sheet contained in the block stiff skeleton in a factory comprises the following steps: the vertical inclination angle of the two vertical rods is adjusted, so that the two vertical rods meet the inclination angle requirement required by the stiff framework of the block body, a plurality of cross rods are welded between the two vertical rods, a third inclined rod is arranged between the two adjacent cross rods, two ends of the third inclined rod are respectively welded on the two vertical rods on two sides, and the manufacture of the vertical truss sheet is completed.
According to the method for installing the assembled type stiff frameworks for the block reinforced bar parts, in the first step, the method for splitting the stiff frameworks into a plurality of block stiff frameworks according to the structural shape of the segment reinforced bar parts comprises the following steps: splitting the stiff framework into a plurality of straight-line section block stiff frameworks according to the sectional shape of the section steel bar parts where the stiff framework is located.
The invention has the advantages that: 1. the method comprises the steps of splitting the stiffness framework into a plurality of block stiffness frameworks, manufacturing component parts of the block stiffness frameworks in a factory, assembling the component parts into the block stiffness frameworks in the block steel bar part product forming process by means of an assembling jig, conveying the block stiffness frameworks to a construction site for folding and assembling, solving the problem of steel bar interference during the installation and construction of the stiffness frameworks in a narrow environment, and being high in assembly degree, capable of being rapidly installed, and relatively to the traditional method, on one hand, firstly assembling a steel bar net sheet, a horizontal truss sheet and a vertical truss sheet, finally conveying the steel bar net sheet and the horizontal truss sheet to the site for assembly, and finally connecting the truss sheets through the connection, so that the interference of the steel bar on the installation of the stiffness frameworks is avoided, and the construction is more convenient; on the other hand, by assembly installation in a factory, the on-site integral hoisting is realized, the on-site construction workload and the safety risk of high-altitude operation are reduced, and the construction efficiency is improved;
2. the method for installing the stiff framework can effectively solve the problem that the installation of the reinforcing steel bars and the stiff framework in the conventional reinforcing steel bar part with the stiff framework is mutually interfered, improves the installation efficiency and the installation precision of the reinforcing steel bar part, reduces the installation difficulty and has great popularization value;
3. according to the invention, when the block stiffness framework is manufactured, the horizontal truss sheets forming the block stiffness framework and the steel bar meshes of the steel bar parts are directly stacked together, and are stacked and placed according to a set sequence, and finally are lifted and fixed layer by layer in a lifting manner, so that the manufacturing efficiency of the block stiffness framework is greatly improved, and the transportation difficulty of the steel bar meshes and the horizontal truss sheets is reduced;
4. the horizontal truss sheet has a simple structure, the square frame of the horizontal truss sheet is internally reserved with the gap through which the vertical truss sheet passes, and when the horizontal truss sheet is installed, the vertical truss sheet is inserted into the gap of the square frame, so that the connection limit between the vertical truss sheet and the horizontal truss sheet can be completed, the assembly efficiency of the block stiffness framework is greatly improved, and the assembly of the block stiffness framework is greatly facilitated;
5. according to the invention, the vertical positions of the reinforcing steel bar net pieces and the horizontal truss pieces are regulated by utilizing the assembly jig in the assembly jig, so that the reinforcing steel bar net pieces and the horizontal truss pieces are uniformly distributed on the vertical truss pieces according to the set interval, the regulation arrangement mode is extremely simple, the manufacturing difficulty of the block stiffness framework is reduced, and the manufacturing efficiency is greatly improved;
6. according to the invention, the horizontal truss sheets are welded and fixed on adjacent steel bar meshes in advance, and when the vertical position is adjusted by utilizing the assembly jig, the vertical position of the horizontal truss sheets can be conveniently adjusted by adjusting the steel bar meshes by the assembly jig;
7. the method is carried out in a space folding mode in the folding process of the block stiffness frameworks, and interference between adjacent block stiffness frameworks in the folding process is avoided, so that folding precision is affected;
8. according to the invention, after the block stiffness framework is folded in place, the connecting truss sheets are installed, so that the connecting truss sheets are installed without interference influence on the installation of the steel bar parts, and enough space is reserved at the installation position of the connecting truss sheets, so that the connecting truss sheets are convenient to install, the connecting truss sheets are of a planar structure, and the adjacent block stiffness frameworks can be quickly connected into a whole;
9. the connecting truss sheets are of a plane truss structure, and the ends of the two bending rods of the connecting truss sheets are directly welded on the square frame short rods of the two horizontal truss sheets adjacent to the same plane, so that two adjacent groups of block stiffness frameworks can be conveniently and fixedly connected into a whole, the installation and connection modes are simple, and the installation of other structures is not influenced;
10. the vertical truss sheet is simple in installation structure, and the vertical truss sheet which meets the inclination angle requirement of the section steel bar part product is manufactured in a factory in advance, so that the subsequent precision control is greatly facilitated;
11. according to the invention, the stiffness framework is split into a plurality of linear side block stiffness frameworks according to the sectional shape of the section steel bar part, the manufacturing difficulty of the linear side block stiffness frameworks is greatly reduced, the requirement on the assembly jig frame is small, and the manufacturing is easier.
The method for installing the stiff framework is simple, solves the problem of interference of reinforcing mesh and main reinforcement construction on the installation of the stiff framework in the installation process of the reinforcing part with the stiff framework in the prior art, ensures the installation precision of the stiff framework, reduces the installation difficulty, improves the installation and construction efficiency, and has great popularization value.
Drawings
Fig. 1: the horizontal truss sheet structure schematic diagram of the invention;
fig. 2: the vertical truss sheet structure schematic diagram of the invention;
fig. 3: the structure of the contact truss sheet is schematically shown in the invention;
fig. 4: the structural schematic diagram of the reinforcing mesh sheet is provided by the invention;
fig. 5: the horizontal truss sheet and reinforcing steel bar mesh stacking arrangement structure is schematically shown;
fig. 6: the vertical truss sheet, the horizontal truss sheet and the reinforcing steel bar net sheet are installed in a schematic view;
fig. 7: the block stiffness skeleton folding schematic diagram of the invention;
fig. 8: the connecting truss sheet connecting structure of the invention is schematically shown;
wherein: 1-reinforcing steel bar meshes; 2-horizontal truss sheets; 21-square frame; 22-cantilever beam; 23-angle steel; 24-a first diagonal; 3-vertical truss sheets; 31-a vertical rod; 32-a cross bar; 33-a third diagonal; 4-linking truss sheets; 41-bending the rod; 42-connecting rod; 43-a second diagonal; .
Detailed Description
Embodiments of the present invention are described in detail below, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
The invention will now be described in further detail with reference to the drawings and to specific examples.
The present embodiment relates to an assembly type stiffness skeleton installation method for a block reinforcement part, wherein the stiffness skeleton is a skeleton part in the block reinforcement part, and is used for improving the structural rigidity of the block reinforcement part. The stiff skeleton of this embodiment is a skeleton structure formed by combining and assembling a horizontal truss sheet 2, a vertical truss sheet 3 and a connecting truss sheet 4. In the installation process of the block steel bar part in the prior art, the installation efficiency of the whole block steel bar part is extremely low and the installation difficulty is extremely high due to the interference problem of the steel bar structure and the stiff framework. In order to eliminate the problem, the installation sequence and the assembled installation of the stiff framework are adjusted, so that the installation efficiency of the whole block reinforcing steel bar part is greatly improved, and the installation difficulty is reduced.
The concrete method for installing the stiffness skeleton of the embodiment is carried out by referring to the following steps:
step one, splitting the stiffness framework into a plurality of block stiffness frameworks according to the structural shape of the segment reinforcing steel bar part, analyzing the structure of the segment reinforcing steel bar part, splitting the stiffness framework corresponding to the segment reinforcing steel bar part into a plurality of block stiffness frameworks, and splitting according to the special structure of the segment reinforcing steel bar part in view of easy manufacture, folding and assembly.
The block stiffness skeleton after the split decomposes according to the structure, and the block stiffness skeleton of this embodiment includes three part, is horizontal truss piece 2, vertical truss piece 3 and contact truss piece 4 respectively, and every block stiffness skeleton includes two vertical truss pieces 3, a plurality of horizontal truss pieces 2 and a plurality of contact truss pieces 4, can carry out adjustment on the quantity as required during practical application.
The horizontal truss sheet 2, the vertical truss sheet 3 and the connecting truss sheet 4 contained in the block stiffness skeleton are manufactured in a factory, the steel bar net sheet 1 (shown in fig. 4) required for installing the block steel bar part is built, the assembly jig can refer to the assembly structure disclosed in the Chinese patent application with the name of 202011157127.6, namely, the steel bar net sheet rapid positioning and segment steel bar part accurate forming assembly method, and after the assembly jig is built, the horizontal truss sheet 2 and the steel bar net sheet 1 are lifted into the assembly space of the assembly jig, as shown in fig. 5.
And secondly, lifting the vertical truss sheets 3 to an assembling space of an assembling jig frame, wherein the vertical truss sheets 3 are vertical members in the block stiffness framework and are vertical supporting framework parts in the block stiffness framework and are used for connecting the horizontal truss sheets 2 and the reinforcing steel bar net sheets 1 together in the vertical direction.
Specifically, the vertical truss sheet 3 needs to be inserted into the reinforcing steel bar net sheet 1 and the horizontal truss sheet 2 which are stacked together according to the set positions, the vertical truss sheet 3 is initially positioned, the positions of the vertical truss sheet 3 in the block stiffness framework are not completely arranged along the vertical direction, the corresponding setting needs to be carried out according to the structure of the block reinforcing steel bar part, the vertical truss sheet 3 can be initially positioned through the assembly jig frame, and the subsequent installation of the vertical truss sheet 3, the horizontal truss sheet 2 and the reinforcing steel bar net sheet 1 is facilitated.
Step three, the reinforcing steel bar net sheet 1 and the horizontal truss sheet 2 in the assembly jig frame are stacked together, in the actual block reinforcing steel bar part, the reinforcing steel bar net sheet 1 and the horizontal truss sheet 2 are arranged along the vertical interval, in addition, the reinforcing steel bar net sheet 1 and the horizontal truss sheet 2 are required in the horizontal direction in consideration of the structure of the bridge tower, so that the vertical interval distance and the horizontal position of the reinforcing steel bar net sheet 1 and the horizontal truss sheet 2 need to be adjusted in the step, the reinforcing steel bar net sheet 1 and the horizontal truss sheet 2 can be lifted based on the lifting device on the assembly jig frame, the reinforcing steel bar net sheet 1 and the horizontal truss sheet 2 are uniformly distributed on the vertical truss sheet 3 according to the set vertical interval, and then the horizontal positions of the reinforcing steel bar net sheet 1 and the horizontal truss sheet 2 are adjusted, as shown in fig. 6.
As shown in fig. 6, the vertical position of the reinforcing mesh 1 and the horizontal truss sheet 2 which are lifted in place can be adjusted by the lifting device on the assembly jig, a plurality of supporting hooks are arranged on the lifting chain of the lifting device, each reinforcing mesh 1 corresponds to one supporting hook, the supporting hooks are lifted by the lifting chain in the vertical lifting process, the reinforcing mesh 1 is hooked on the supporting hooks, and the lifting device vertically lifts the reinforcing mesh 1 and the horizontal truss sheet which are overlapped together. The horizontal truss sheet 2 is welded and fixed on the reinforcing mesh sheet 1, the vertical position of the reinforcing mesh sheet 1 is adjusted, and the vertical position of the horizontal truss sheet 2 connected with the vertical position is also adjusted. By the mode, the reinforcement mesh sheet 1 and the horizontal truss sheet 2 are arranged in the vertical direction according to the set interval sequence, so that the subsequent connection with the vertical truss sheet 2 is facilitated.
After the positions of the reinforcing mesh sheet 1 and the horizontal truss sheet 2 are adjusted, the vertical truss sheet 3 and the horizontal truss sheet 2 are fixedly connected to form a required block stiffness framework, the reinforcing mesh sheet 1 and the block stiffness framework are connected into a whole, and the block stiffness framework manufactured in a factory is partially completed.
And step four, manufacturing residual block stiffness frameworks in a factory according to the step one, the step two and the step three, wherein the stiffness frameworks corresponding to the reinforced bar parts of one section comprise a plurality of block stiffness frameworks, and after the block stiffness frameworks are manufactured, transporting the block stiffness frameworks to a construction site in sequence.
Step five, assembling and folding the block stiffness frameworks according to the sequence, and considering site construction and the structure of the stiffness frameworks, the block stiffness frameworks are required to be folded according to a certain sequence, as shown in fig. 7, and after all the block stiffness frameworks forming the stiffness frameworks are completely assembled, connecting truss sheets 4 are installed between adjacent block stiffness frameworks to integrally connect the adjacent block stiffness frameworks to form a stiffness framework whole, as shown in fig. 8.
According to the embodiment, the stiffness framework is split into a plurality of block stiffness frameworks, so that the manufacturing and the transportation are greatly facilitated, and the subsequent assembly and closure construction is also facilitated. In the preparation process of the block stiffness framework, the reinforcing steel mesh sheet 1, the horizontal truss sheet 2 and the vertical truss sheet 3 are firstly installed, and finally the connecting truss sheet 4 is installed, so that the interference between the reinforcing steel installation of the block reinforcing steel part and the stiffness framework is avoided, and the installation efficiency of the stiffness framework and the block reinforcing steel part is greatly improved.
In a further embodiment, the present embodiment further optimizes the step one, in which the method for lifting the reinforcing mesh sheet 1 and the horizontal truss sheet 2 into the assembly space of the assembly jig comprises: lifting the reinforcing steel bar meshes 1 and the horizontal truss sheets 2 into an assembling space of the assembling jig frame, and stacking the reinforcing steel bar meshes 1 with set layers between two adjacent horizontal truss sheets 2, wherein the reinforcing steel bar meshes are shown in fig. 5.
In the structure of the block reinforcing steel bar part, the number of the reinforcing steel bar meshes 1 forming the block reinforcing steel bar part and the number of the horizontal truss sheets 2 forming the block stiffness framework are set, the relative position relation between the reinforcing steel bar meshes 1 and the horizontal truss sheets 2 is also required by the setting, the reinforcing steel bar meshes 1 and the horizontal truss sheets 2 can be stacked together according to the setting requirement at the initial stage of lifting, and the positions of the reinforcing steel bar meshes 1 and the horizontal truss sheets 2 can be adjusted vertically layer by layer without adjusting the relative positions of the reinforcing steel bar meshes 1 and the horizontal truss sheets 2. The operation method can greatly improve the assembly efficiency of the block stiffness framework.
In another preferred embodiment, the present embodiment further optimizes step two, in which the method of inserting the vertical truss sheet into the horizontal truss sheet includes: as shown in fig. 1, the horizontal truss sheet 2 of the present embodiment includes a square frame 21, a first diagonal 24 is welded between two long bars of the square frame 21, and a gap is left between the first diagonal 24 and two short bars of the square frame 21. When the relative positions of the vertical truss sheets 3 and the horizontal truss sheets 2 are required to be arranged, the two groups of vertical truss sheets 3 are lifted, and the two groups of vertical truss sheets 3 penetrate into gaps at two ends of the first diagonal rods 24 respectively. In this way, the vertical truss sheet 3 and the horizontal truss sheet 2 can be conveniently connected into a whole.
In another embodiment, the present embodiment optimizes the third step, in which the method for adjusting the vertical positions of the reinforcing mesh sheet 1 and the horizontal truss sheet 2 includes: the steel bar net sheet 1 and the horizontal truss sheet 2 are lifted by the assembly jig frame, so that the steel bar net sheets 1 are distributed on the vertical truss sheet 3 at equal intervals, and the horizontal truss sheets 2 are distributed on the vertical truss sheet 3 according to a set position.
When in actual use, the reinforcing steel bar meshes 1 are sequentially lifted from top to bottom, the plurality of reinforcing steel bar meshes 1 are distributed on the vertical truss sheets 3 in an equidistant and spaced mode, the plurality of horizontal truss sheets 2 are arranged on the vertical truss sheets 3 according to the set positions, and the arrangement of the reinforcing steel bar meshes 1 and the horizontal truss sheets 2 is set according to the structural requirements of block reinforcing steel bar parts.
In a further embodiment, the method of using the assembly jig to lift the reinforcing mesh 1 and the horizontal truss sheet 2 includes: as shown in fig. 1, the horizontal truss sheet 2 includes a plurality of cantilever beams 22 arranged along the width direction of the square frame 21, the plurality of cantilever beams 22 are arranged on the square frame 21 at intervals along the length direction of the square frame 21, a plurality of angle steels 23 arranged along the length direction of the square frame 21 are distributed on the beam body of the cantilever beams 22, which exceeds the square frame 21, and the square frame 21, the cantilever beams 22, the angle steels 23 and the first diagonal rods 24 form a planar truss structure.
In another alternative embodiment, the present embodiment further optimizes step five, in which the method for assembling and folding the block stiffness skeleton sequentially includes: sequentially numbering the block stiffness skeletons to be folded according to the assembling positions, as shown in fig. 7, folding the block stiffness skeletons corresponding to the odd numbers in place, and folding the block stiffness skeletons corresponding to the even numbers in place; or the even numbered corresponding block stiffness skeletons are folded in place, and then the odd numbered corresponding block stiffness skeletons are folded in place.
In short, the space folding has the advantages that: the two sides of the block stiffness framework which is folded at first have enough space, so that the position can be conveniently adjusted, after accurate alignment, the subsequent block stiffness framework is folded, and the block stiffness framework which is folded before can be used for positioning by virtue of the block stiffness framework which is folded before, so that the installation of the stiffness framework is greatly facilitated.
The folding and assembling construction of the embodiment is completed through the folding and assembling jig frame, the folding and assembling jig frame comprises an inner ring platform and an outer ring platform, the inner ring platform is a support structure fixed on the inner ring, a sliding rail is built between the inner ring platform and the outer ring platform, the outer ring platform is connected to the sliding rail in a sliding manner, and the sliding rail is a linear guide rail extending along the radial direction of the block steel bar part. The outer ring platform is pushed to move on the sliding rail through an oil cylinder on the sliding rail.
When the block stiffness framework is folded, the block stiffness framework is fixed to the inner side of the outer ring platform, then the outer ring platform and the unit reinforcing steel bar part blocks are driven to move to one side of the inner ring platform on the sliding rail through the oil cylinders until the inner side of the block stiffness framework reaches the outer side of the inner ring platform, and after the position adjustment of the block stiffness framework reaches the set requirement, the block stiffness framework is fixed through the inner ring platform, and the block stiffness framework is folded in place.
In one embodiment, the present embodiment is further optimized for step five, where the method of installing tie stringers between adjacent block stiffness skeletons includes: the connecting truss sheets 4 are arranged between two adjacent block stiffness skeletons, and two ends of the connecting truss sheets 4 are respectively connected with two groups of adjacent horizontal truss sheets 2 at the same horizontal height, as shown in fig. 8.
The connecting truss sheet 4 is of a plane truss structure, the connecting truss sheet 4 is of a connecting structure corresponding to the corner of the stiffness framework, two ends of the connecting truss sheet 4 are respectively connected with two adjacent water skin truss sheets 2 at the same horizontal height, and the connecting truss sheet 4 is equivalent to connecting the stiffness frameworks of adjacent blocks into a whole. The connection truss sheet 4 is installed and arranged at the moment, so that the installation of the steel bar structure in the block steel bar part is not affected, and the interference to the installation of the steel bars in the block steel bar part is avoided.
In a further embodiment, the method for connecting two ends of the contact truss sheet 4 with two sets of adjacent horizontal truss sheets 2 at the same level comprises: the structure of the linking truss sheet 4 in this embodiment is shown in fig. 2, and the linking truss sheet 4 is a planar truss sheet structure, and includes two bending rods 41 corresponding to corners of the stiff skeleton, a connecting rod 42 connecting inflection points of the two bending rods 41 and second diagonal rods 43 disposed on two sides of the connecting rod 42 and used for connecting the two bending rods 41. The bending bar 41, the connecting bar 42 and the second diagonal bar 43 are fixedly connected to form a planar truss structure.
In actual installation, the ends of the two bending rods 41 in the connecting truss sheet 4 are welded and fixed on the short rods on the two sides of the square frame 21 of the horizontal truss sheet 2 respectively, so that the connection of the connecting truss sheet 4 and the horizontal truss sheet 2 is completed. The welding and fixing mode of the connecting truss sheet 4 and the horizontal truss sheet 2 is simple, the space requirement is small, and the operation is convenient.
In another embodiment, the present embodiment optimizes step one, in which a method of making vertical stringers 3 comprised by a block stiffness skeleton in a factory comprises: as shown in fig. 3, the vertical truss sheet 3 of the present embodiment includes two vertical bars 31, a plurality of cross bars 32 disposed between the two vertical bars 31, and a third diagonal bar 33 disposed between the cross bars 32 and the vertical bars 31. In the process of actually manufacturing the vertical truss sheet 3, firstly, the vertical inclination angles of the two vertical rods 31 are adjusted, so that the two vertical rods 31 meet the inclination angle requirement required by the block stiffness framework (the inclination angle requirement is actually the block steel bar part design inclination angle requirement), a plurality of cross rods 32 are welded between the two vertical rods 31, a third inclined rod 33 is arranged between the two adjacent cross rods 32, and two ends of the third inclined rod 33 are welded on the two vertical rods 31 on two sides respectively, so that the manufacture of the vertical truss sheet 3 is completed.
In a further embodiment, the present embodiment optimizes step one in which a method of splitting a stiff skeleton into a plurality of block stiff skeletons in accordance with the structural shape of a segmented rebar article comprises: splitting the stiff framework into a plurality of straight-line section block stiff frameworks according to the sectional shape of the section steel bar parts where the stiff framework is located. The difficulty of preparation, transportation, folding and assembly of the block stiffness framework at the straight line side is reduced, the construction of the stiffness framework is facilitated, and the construction efficiency is improved.
As shown in fig. 7, the radial direction of the present invention means the direction of the inner ring platform in fig. 7, which diverges around the center point of the inner ring platform, and the vertical direction of the present invention means the up-down direction in fig. 5 to 6.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An assembly type stiff skeleton installation method for block steel bar parts is characterized in that: the method comprises the following steps:
step one, splitting a stiffness framework into a plurality of block stiffness frameworks according to the structural shape of a segment steel bar part, manufacturing horizontal truss sheets, vertical truss sheets and connecting truss sheets contained in the block stiffness frameworks in a factory, building an assembly jig, lifting the horizontal truss sheets and forming steel bar meshes of the block steel bar part into an assembly space of the assembly jig;
step two, lifting the vertical truss sheets to an assembling space of an assembling jig frame, inserting the vertical truss sheets into the stacked reinforcing steel bar net sheets and the horizontal truss sheets according to a set position, and positioning the vertical truss sheets;
thirdly, adjusting the vertical position and the horizontal position of the reinforcing steel bar net sheet and the horizontal truss sheet by utilizing the assembly jig frame, fixedly connecting the vertical truss sheet and the horizontal truss sheet to form a required block stiffness framework, and connecting the reinforcing steel bar net sheet and the block stiffness framework into a whole;
step four, manufacturing residual block stiffness frameworks in factories according to the step one, the step two and the step three, and sequentially transporting the residual block stiffness frameworks to a construction site;
and fifthly, assembling and folding the block stiffness frameworks in sequence, and installing connecting truss sheets between adjacent block stiffness frameworks to connect the adjacent block stiffness frameworks into a whole after the assembling is completed.
2. A method of installing a fabricated stiff skeleton for a section of steel bar as recited in claim 1, wherein: in the first step, the method for lifting the reinforcing steel bar net sheet (1) and the horizontal truss sheet (2) into the assembly space of the assembly jig comprises the following steps: lifting the reinforcing steel bar meshes (1) and the horizontal truss sheets (2) into an assembling space of an assembling jig frame, and stacking the reinforcing steel bar meshes (1) with set layers according to the mode of arranging the reinforcing steel bar meshes (1) with set layers between two adjacent horizontal truss sheets (2).
3. A method of installing a fabricated stiff skeleton for a section of steel bar as recited in claim 1, wherein: in the second step, the method for inserting the vertical truss sheet into the horizontal truss sheet comprises the following steps: the horizontal truss sheet comprises a square frame, a first diagonal rod is welded between two long rods of the square frame, and a gap is reserved between the first diagonal rod and two short rods of the square frame;
and lifting the two groups of vertical truss sheets, and penetrating the two groups of vertical truss sheets into gaps at two ends of the first diagonal rod respectively.
4. A method of installing a fabricated stiff skeleton for a section of steel bar as recited in claim 3, wherein: in the third step, the method for adjusting the vertical positions of the reinforcing steel mesh sheet and the horizontal truss sheet comprises the following steps: the assembly jig frame is used for lifting the steel bar meshes and the horizontal truss sheets, so that the steel bar meshes are distributed on the vertical truss sheets at equal intervals, and the horizontal truss sheets are distributed on the vertical truss sheets according to the set positions.
5. A method of installing a fabricated stiff skeleton for a section of steel bar as recited in claim 4, wherein: the method for lifting the reinforcing steel mesh and the horizontal truss sheet by using the assembly jig comprises the following steps: the horizontal truss sheet comprises a plurality of cantilever beams which are arranged along the width direction of the square frame; the cantilever beams are arranged on the square frame at intervals along the length direction of the square frame, and a plurality of angle steels arranged along the length direction of the square frame are distributed on the beam body of the cantilever beams, which exceeds the square frame;
and (3) welding and fixing the horizontal truss sheet and the adjacent steel bar meshes into a whole, and lifting the steel bar meshes by utilizing the assembly jig frame to vertically lift the horizontal truss sheet.
6. A method of installing a fabricated stiff skeleton for a section of steel bar as recited in claim 3, wherein: in the fifth step, the method for assembling and folding the block stiffness framework in sequence comprises the following steps: sequentially numbering the block stiffness skeletons to be folded according to the assembling positions, folding the block stiffness skeletons corresponding to the odd numbers in place, and folding the block stiffness skeletons corresponding to the even numbers in place; or the even numbered corresponding block stiffness skeletons are folded in place, and then the odd numbered corresponding block stiffness skeletons are folded in place.
7. A method of installing a fabricated stiff skeleton for a section of steel bar as recited in claim 3, wherein: in the fifth step, the method for installing the connecting truss sheet between the adjacent block stiffness skeletons comprises the following steps: and arranging connecting truss sheets (4) between two adjacent block stiffness skeletons, and connecting two ends of the connecting truss sheets (4) with two groups of adjacent horizontal truss sheets (2) at the same horizontal height respectively.
8. A method of installing a fabricated stiff skeleton for a section of steel bar as recited in claim 7, wherein: the method for connecting the two ends of the connecting truss sheet (4) with two groups of adjacent horizontal truss sheets (2) at the same horizontal height comprises the following steps: the connecting truss sheet is of a plane truss sheet structure and comprises two bending rods corresponding to the corners of the stiff framework; a connecting rod for connecting inflection points of the two bending rods is arranged between the two bending rods, and the second inclined rods are respectively arranged at two sides of the connecting rod and are used for connecting the two bending rods;
and respectively welding and fixing the end parts of the two bending rods in the connecting truss sheet to the short rods on two sides of the square frame of the horizontal truss sheet to finish the connection of the connecting truss sheet and the horizontal truss sheet.
9. A method of installing a fabricated stiff skeleton for a section of steel bar as recited in claim 1, wherein: in the first step, the method for manufacturing the vertical truss sheet contained in the block stiffness framework in a factory comprises the following steps: the vertical inclination angle of the two vertical rods is adjusted, so that the two vertical rods meet the inclination angle requirement required by the stiff framework of the block body, a plurality of cross rods are welded between the two vertical rods, a third inclined rod is arranged between the two adjacent cross rods, two ends of the third inclined rod are respectively welded on the two vertical rods on two sides, and the manufacture of the vertical truss sheet is completed.
10. A method of installing a fabricated stiff skeleton for a section of steel bar as recited in claim 1, wherein: in the first step, the method for splitting the stiffness framework into a plurality of block stiffness frameworks according to the structural shape of the segmental reinforcement parts comprises the following steps: splitting the stiff framework into a plurality of straight-line section block stiff frameworks according to the sectional shape of the section steel bar parts where the stiff framework is located.
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| CN115452349B (en) * | 2022-09-16 | 2025-05-23 | 中交第二航务工程局有限公司 | Test base and test method for reinforced bar part |
| CN116623542A (en) * | 2023-05-11 | 2023-08-22 | 中铁大桥局第七工程有限公司 | A tire frame structure and construction method of variable cross-section tower column steel bar positioning parts |
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