CN110805134B - Stay bar structure connecting node serving as light guide pipe and installation method thereof - Google Patents
Stay bar structure connecting node serving as light guide pipe and installation method thereof Download PDFInfo
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- CN110805134B CN110805134B CN201911163932.7A CN201911163932A CN110805134B CN 110805134 B CN110805134 B CN 110805134B CN 201911163932 A CN201911163932 A CN 201911163932A CN 110805134 B CN110805134 B CN 110805134B
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- stay bar
- chord
- joint bearing
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a stay bar structure connecting node used as a light guide pipe and an installation method thereof, wherein the stay bar structure connecting node comprises a stay bar structure, a chord structure and a joint bearing node; the strut structure is divided into an upper half strut and a lower half strut at the lower surface of the chord structure in a breaking way, wherein the upper half strut penetrates through the middle part of the chord structure and is welded with the chord structure into a whole; the stay bar at the lower half part is connected with the chord structure into a whole through two joint bearing nodes, the stay bar realizes rotation along the length direction of the cable through the joint bearing nodes, and meanwhile, the stay bar structure is free of shielding in the hollow part in the vertical direction. The invention aims to overcome the technical problem of the integrated design of the existing light guide pipe and the string structure stay bar.
Description
Technical Field
The invention belongs to the technical field of constructional engineering, and particularly relates to a stay bar structure connecting node serving as a light guide pipe and an installation method thereof.
Background
With the development of large-span space structures, the space building modeling becomes more and more complex, and the structure and building integrated design is one of the design targets pursued by structural engineers. The integrated design of the light guide pipe and the string structure support rod is a good product, so that the steel quantity for engineering is saved, meanwhile, the light guide pipe is prevented from occupying the building space, and the indoor space is more concise and ordered.
Because the stay bar structure which is also used as the light guide pipe needs to be hollow and free of shielding, the existing designed engineering adopts the stay bar as a main through component, and the chord members of the string structure are rigidly connected and penetrated through the side surfaces of the stay bar. This approach presents three problems:
1. the upper part is rigidly connected, and the lower part cable force can generate larger additional bending moment in the stay bar in the using process, so that the section specification of the stay bar is required to be large; meanwhile, the section specification of the stay bar is not less than the specification of the chord member, so that the rigid connection requirement of the chord member is ensured; in addition, the stiffening plate cannot be arranged inside the light guide pipe, and the node rigidity is weak.
2. When the prestressed structure is tensioned, the lower part of the support rod needs to be pre-biased to meet the tensioning requirement, the upper part of the support rod is just connected and cannot be pre-biased, a cable clamp at the lower part of the support rod is needed to be used as a sliding node, and the prestressed structure is fixed when tensioned to a designed position, so that the process is complex and the construction is complicated.
3. During structural construction, when the brace rods and the chord member ground are assembled and hoisted together, a turnover procedure needs to be added in the hoisting process, and meanwhile, when the height of the brace rods is large, an additional crane is needed to assist in turnover; when vaulting pole and chord member separately hoist and mount, vaulting pole position department needs set up the support frame, increases the construction measure volume, and the welding seam of vaulting pole and chord member needs high altitude welding simultaneously, and the low safe risk of efficiency of construction is high. The above three problems greatly limit the application of the integrated design of the light guide pipe and the bracing strut with the string structure.
Disclosure of Invention
The invention aims to provide a stay bar structure connecting node doubling as a light guide pipe and an installation method thereof, and overcomes the defect of the integrated design of the traditional light guide pipe and a string structure stay bar.
In order to achieve the purpose, the invention specifically provides the following technical scheme: a stay bar structure connecting node used as a light guide pipe comprises a stay bar structure, a chord member structure and a joint bearing node. The strut structure is divided into two parts at the lower surface of the chord structure, wherein the upper half part of the strut penetrates through the middle part of the chord structure and is welded with the chord structure into a whole; the chord structure is in a variable cross-section form with an enlarged width at the position of the stay bar in order to ensure that the bearing performance is not reduced; the stay bar at the lower half part is connected with the chord structure into a whole through two joint bearing nodes, the stay bar can rotate along the length direction of the cable through the joint bearing nodes, and meanwhile, the inside hollow of the stay bar structure in the vertical direction does not have the shielding function requirement.
When the brace rod structure is installed, the brace rod structure and the chord rod structure are assembled together on the ground; in order to ensure that the installation of the brace rod structure does not influence the height of an assembling jig frame of the chord structure, the brace rod structure is horizontally vertical to the chord structure and is placed below the chord structure, and only one joint bearing node between the brace rod structure and the chord structure is connected; then, hoisting the chord structure, and lifting the chord structure, wherein the strut structure is driven by rotating around the installed joint bearing node under the gravity load, lifted together with the chord structure and finally separated from the ground; after the chord member structure is hoisted to the designed position and fixed, the brace rod structure can be finely adjusted to the designed position through the chain block, the joint bearing node which is not fixedly connected is welded and fixed with the brace rod structure, and then the installation of the brace rod structure is completed.
A plurality of technical characteristics in the above technical scheme are optimized respectively:
the upper half part and the lower half part of the brace structure have the same specification, and meanwhile, the center line of the brace of the upper half part is superposed with the center line of the chord structure.
The upper half part of the brace rod structure is welded and fixed at the upper and lower wing edges of the chord rod structure.
Above-mentioned chord member structure adopts the stiffening plate to carry out the cross-section transition in variable cross section department, and for the influence of reinforcing vaulting pole trompil, it is fixed to set up four stiffening plates welded connection along first half vaulting pole a week symmetry simultaneously, strengthens the wholeness of chord member structure and first half vaulting pole.
Above-mentioned chord member structure, accessible increase node district flange plate thickness mode, the size of adjustment width direction.
The two joint bearing nodes are symmetrically arranged along the width direction of the chord structure.
Above-mentioned joint bearing node, two otic placodes and chord member structural weld, well otic placode and the vaulting pole welding of latter half.
In the joint bearing joint, the lug plate plane is parallel to the width direction of the chord structure.
The size of the out-of-plane corner of the joint bearing node is determined according to the pre-biased size of the cable clamp at the lower part of the stay bar structure.
A method for installing a connecting node of a stay bar structure serving as a light guide pipe comprises the following steps:
the assembling jig frame is arranged, the chord structure is assembled, 2 joint bearing nodes are assembled at corresponding positions of the chord structure, and double lug plates of the joint bearing nodes are welded and fixed with the chord structure.
And secondly, horizontally and vertically placing the lower half supporting rod on the cushion block support, placing the upper end at a joint bearing node under the chord structure, and welding and fixing a middle ear plate of one joint bearing node on the supporting rod structure.
Thirdly, slowly hoisting the chord structure, wherein the stay bar at the lower half part is driven by rotating around the installed joint bearing node under the gravity load, rises together with the chord structure, and finally breaks away from the ground; in the lifting process of the stay bar structure, a sliding shoe is placed at the lower port of the stay bar structure, so that the soft contact between the stay bar structure and the ground in the lifting process is ensured.
Fourthly, after the chord member structure is hoisted to the designed position and fixed, the rope connected to the lower end of the support rod structure is tensioned through the chain block, the support rod structure is adjusted to the designed position, and the lug plate in the joint bearing node which is not fixedly connected is welded and fixed with the support rod structure.
And fifthly, after the joint bearing node and the brace rod structure are welded and fixed, removing the rope and the chain block to complete the installation of the brace rod structure.
The joint bearing joint needs to be assembled on the ground or assembled in a factory along with the chord structure, so that the joint bearing joint is not suitable for being assembled at high altitude, and the problem of difficult high-altitude installation caused by high-precision design of a joint bearing assembly is solved.
The invention has the beneficial effects that:
the invention has the following technical advantages: (1) according to the invention, the support rod is hinged with the chord structure, the chord structure is a continuous member and is consistent with a tension chord structure stress system, and the support rod specification is more excellent; (2) according to the invention, the lower cable clamp node of the strut bar does not need to be provided with a sliding measure, so that the construction of a cable structure at the later stage is more convenient; (3) the joint bearing connecting joint disclosed by the invention is simple in structure, clear in force transmission and low in cost; (4) the supporting rod structure can be hoisted together with the chord structure for construction, extra mechanical hoisting and construction measures are not needed, construction is convenient and efficient, and economical efficiency is good.
Drawings
FIG. 1 is a top view of a brace bar structure connection node according to the present invention; FIG. 2 is a cross-sectional view of a brace bar structure connection node according to the present invention; FIG. 3 is a side view of a brace bar structure connecting node according to the present invention; FIG. 4 is a schematic view of the strut structure of the present invention; fig. 5 is a flow chart of a method for installing the brace rod structure according to the invention.
Detailed Description
As shown in fig. 1-3, a brace rod structure connection node doubling as a light pipe includes a brace rod structure 1, a chord member structure 2, and a joint bearing node 3.
The strut structure 1 is divided into two parts at the lower surface of the chord structure 2 in a breaking way, wherein the upper half strut 11 penetrates through the middle part of the chord structure 2, and meanwhile, the central line of the upper half strut 11 is superposed with the central line of the chord structure 2; the upper half stay 11 is welded and fixed with the upper and lower wing edges of the chord member structure 2 into a whole.
The chord structure 2 adopts a variable cross section form with enlarged width at the position of the brace structure 1, and simultaneously adopts a stiffening plate 4 at the position of the variable cross section for cross section transition; in addition, in order to strengthen the influence of the holes of the upper half stay bar 11, four stiffening plates 4 are symmetrically arranged around the upper half stay bar 11 and welded and fixed, so that the integrity of the chord structure 2 and the upper half stay bar 11 is enhanced.
The two joint bearing nodes 3 are symmetrically arranged along the width direction of the chord structure 2; two ends of the knuckle bearing joint are respectively connected to the chord structure 2 and the lower half stay 12, wherein the knuckle bearing joint double-lug plate 31 is welded with the chord structure 2, and the knuckle bearing joint middle-lug plate 32 is welded with the lower half stay 12; the lug plate plane of the joint bearing node 3 is parallel to the width direction of the chord structure 2; the lower stay 12 can rotate along the length direction of the cable through the joint bearing node 3.
Referring to fig. 4-5, a method for installing a connection node of a brace rod structure doubling as a light pipe includes the following steps:
firstly, the assembling jig frame 51 is arranged, the chord member structure 2 is assembled, 2 joint bearing nodes 3 are assembled at corresponding positions of the chord member structure 2, and the double lug plates 31 of the joint bearing nodes are welded and fixed with the chord member structure 2.
And secondly, horizontally and vertically placing the lower half stay bar 12 on the cushion block support 52 in the chord structure 2, simultaneously placing the upper end of the lower half stay bar at the joint bearing node 3 right below the chord structure 2, and welding and fixing the middle ear plate 32 of one joint bearing node 3 on the lower half stay bar 12.
Thirdly, slowly hoisting the chord member structure 2, wherein the stay bar 12 at the lower half part is driven by rotating around the installed joint bearing node 3 under the gravity load, rises together with the chord member structure 2, and finally breaks away from the ground; in the hoisting process of the lower half stay bar 12, the sliding shoe 6 is placed at the lower port position, so that the soft contact between the lower half stay bar 12 and the ground in the hoisting process is ensured.
Fourthly, the chord member structure 2 is hoisted to the fixed back of design position, through 7 stretch-draw ropes 8 of connecting in the lower extreme of the lower half vaulting pole of chain block, adjusts the lower half vaulting pole 12 to the design position, and with the fixed joint bearing node 3 well otic placode 32 of not connecting, with lower half vaulting pole 12 welded fastening.
Fifthly, after the joint bearing node 3 and the lower half stay bar 12 are welded and fixed, the rope 8 and the chain block 7 are removed, and the stay bar structure 1 is installed.
Claims (6)
1. The utility model provides a stay bar structure connected node who does light pipe concurrently which characterized in that: the device comprises a strut structure, a chord structure and a joint bearing node; the strut structure is divided into an upper half strut and a lower half strut at the lower surface of the chord structure in a breaking way, wherein the upper half strut penetrates through the middle part of the chord structure and is welded with the chord structure into a whole; the stay bar at the lower half part is connected with the chord structure into a whole through two joint bearing nodes, the stay bar realizes rotation along the length direction of the cable through the joint bearing nodes, and meanwhile, the stay bar structure is hollow and free of shielding in the vertical direction;
the chord structure adopts stiffening plates for section transition at the variable section, and four stiffening plates are symmetrically arranged around the upper half part of the stay bar and welded and fixed;
the installation method of the stay bar structure connecting node which is also used as the light guide pipe comprises the following steps,
firstly, arranging an assembling jig frame, assembling a chord structure, and assembling two joint bearing nodes at corresponding positions of the chord structure, wherein the double lug plates of the joint bearing nodes are welded and fixed with the chord structure;
secondly, horizontally and vertically arranging the stay bar at the lower half part on the cushion block support, arranging the upper end at a joint bearing node right below the chord structure, and welding and fixing a middle ear plate of one joint bearing node on the stay bar structure;
thirdly, slowly hoisting the chord structure, wherein the stay bar at the lower half part is driven by rotating around the installed joint bearing node under the gravity load, rises together with the chord structure, and finally breaks away from the ground; in the hoisting process of the stay bar structure, a sliding shoe is placed at the lower port position of the stay bar structure, so that the soft contact between the stay bar structure and the ground in the hoisting process is ensured;
fourthly, after the chord member structure is hoisted to the designed position and fixed, a rope connected to the lower end of the support rod structure is tensioned through a chain block, the support rod structure is adjusted to the designed position, and the lug plate in the joint bearing node which is not fixedly connected is welded and fixed with the support rod structure;
and fifthly, after the joint bearing node and the brace rod structure are welded and fixed, removing the rope and the chain block to complete the installation of the brace rod structure.
2. The connection node of a stay bar structure doubling as a light pipe as claimed in claim 1, wherein: the specifications of the upper half stay bar and the lower half stay bar are the same, and the center line of the upper half stay bar is superposed with the center line of the chord structure.
3. The connection node of a stay bar structure doubling as a light pipe as claimed in claim 1, wherein: and the upper half part of the stay bar is welded and fixed at the upper and lower flanges of the chord structure.
4. The connection node of a stay bar structure doubling as a light pipe as claimed in claim 1, wherein: the joint bearing nodes are symmetrically arranged along the width direction of the chord structure.
5. The connection node of a stay bar structure doubling as a light pipe as claimed in claim 1, wherein: the knuckle bearing joint comprises a double-lug plate and a middle-lug plate, the double-lug plate is welded with the chord structure, the middle-lug plate is welded with the lower half supporting rod, and the plane of the lug plate is parallel to the width direction of the chord structure.
6. The connection node of a stay bar structure doubling as a light pipe as claimed in claim 1, wherein: and the size of a corner outside the joint plane of the joint bearing is determined according to the pre-biased size of the cable clamp at the lower part of the stay bar structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911163932.7A CN110805134B (en) | 2019-11-25 | 2019-11-25 | Stay bar structure connecting node serving as light guide pipe and installation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911163932.7A CN110805134B (en) | 2019-11-25 | 2019-11-25 | Stay bar structure connecting node serving as light guide pipe and installation method thereof |
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| CN110805134A CN110805134A (en) | 2020-02-18 |
| CN110805134B true CN110805134B (en) | 2021-12-03 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3968808A (en) * | 1974-11-06 | 1976-07-13 | Zeigler Theodore Richard | Collapsible self-supporting structure |
| CN206941834U (en) * | 2017-05-23 | 2018-01-30 | 同济大学建筑设计研究院(集团)有限公司 | A kind of steel structure node for preventing lateral bucking |
| CN107965058A (en) * | 2017-12-06 | 2018-04-27 | 浙江精工钢结构集团有限公司 | A kind of device for improving ball hinged support node resistance to plucking load-carrying properties |
| CN110145028A (en) * | 2019-05-07 | 2019-08-20 | 天津大学 | The centripetal double rustling sounds in top for beam-string structure support joint system |
-
2019
- 2019-11-25 CN CN201911163932.7A patent/CN110805134B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3968808A (en) * | 1974-11-06 | 1976-07-13 | Zeigler Theodore Richard | Collapsible self-supporting structure |
| CN206941834U (en) * | 2017-05-23 | 2018-01-30 | 同济大学建筑设计研究院(集团)有限公司 | A kind of steel structure node for preventing lateral bucking |
| CN107965058A (en) * | 2017-12-06 | 2018-04-27 | 浙江精工钢结构集团有限公司 | A kind of device for improving ball hinged support node resistance to plucking load-carrying properties |
| CN110145028A (en) * | 2019-05-07 | 2019-08-20 | 天津大学 | The centripetal double rustling sounds in top for beam-string structure support joint system |
Non-Patent Citations (2)
| Title |
|---|
| 大跨度张弦结构体系的应用创新和一体化设计研究;丁浩民;《创新与实践》;20150420;第80-81页 * |
| 张弦结构中撑杆上节点与拉索端部节点概述;刘琦;《第十九届全国现代结构工程学术研讨会》;20190719;第157-162页 * |
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