CN110541511B - Space chord support steel-concrete combined floor system - Google Patents
Space chord support steel-concrete combined floor system Download PDFInfo
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- CN110541511B CN110541511B CN201910759335.4A CN201910759335A CN110541511B CN 110541511 B CN110541511 B CN 110541511B CN 201910759335 A CN201910759335 A CN 201910759335A CN 110541511 B CN110541511 B CN 110541511B
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- 239000004567 concrete Substances 0.000 title claims abstract description 74
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- 230000008093 supporting effect Effects 0.000 claims abstract description 33
- 239000002131 composite material Substances 0.000 claims description 12
- 238000010276 construction Methods 0.000 abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 235000014121 butter Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Abstract
The invention provides a space chord support steel-concrete combined floor system, which belongs to the technical field of building floor system construction, wherein a cable rod system is arranged in a three-dimensional space, and a stay rod and a stay rope are arranged simply, so that the space chord support steel-concrete combined floor system has the characteristics of space force transmission and has stronger spanning capacity. The space chord support steel-concrete combined floor comprises a concrete cover plate, a steel beam grid and a cable rod supporting component which are arranged from top to bottom, wherein the steel beam grid is attached to and fixedly connected with the bottom surface of the concrete cover plate, and the cable rod supporting component comprises a stay rod, a rectangular circumferential cable and an oblique cable; the rectangular circumferential cables are arranged into a plurality of circles, and the plurality of circles of rectangular circumferential cables are coplanar and concentrically arranged; the top end of the brace rod is connected with the nodes of the steel beam grid, and the bottom end of the brace rod is connected with the vertexes of the rectangular circumferential ropes; the oblique cables comprise a first oblique cable and a second oblique cable, the first oblique cable is connected between two supporting rods arranged at opposite vertexes of two adjacent rectangular circumferential cables, and the second oblique cable is connected between the supporting rod positioned at the outermost ring and the steel beam grid vertexes close to the supporting rod.
Description
Technical Field
The invention belongs to the technical field of building floor construction, and particularly relates to a space chord support steel-concrete combined floor.
Background
With the rapid development of economic, social, cultural and sports industries in China, large-scale public buildings are built on a large scale, and meanwhile, higher demands are put forward for large-span floor structures. The existing large-span floor system has fewer structural forms and mainly comprises a traditional prestressed reinforced concrete floor system, a steel-concrete combined floor system, a steel net frame-concrete slab combined floor system and a novel hollow grid floor system and a chord support steel-concrete combined floor system.
The chord support steel-concrete combined floor system combines a concrete floor system, a steel beam, a stay bar and a inhaul cable, belongs to a composite structure, realizes 'hardness and softness and combination', can fully exert the advantages of high compression strength of concrete materials and high tensile strength of steel materials and inhaul cable materials, can reduce the dead weight of the structure to a greater extent, has higher structural efficiency and has wide application prospect. At present, the chord support steel-concrete combined floor system only has a form of a one-way chord support floor system structure, the main bearing unit of the one-way chord support floor system structure is a planar structure system, the cable rod system is arranged more singly and is easy to deform out of plane, and in order to prevent the cable rod system from deforming out of plane, the out-of-plane stable inhaul cable is required to be arranged, so that the bracing rods and inhaul cables are arranged more.
Therefore, how to provide a chord steel-concrete combined floor system with a simple structure and a three-dimensional space structure system and how to improve the structural efficiency and the crossing capacity of the chord steel-concrete combined floor system are all technical problems which are needed to be solved currently.
Disclosure of Invention
Aiming at the defects that the cable rod system of the chord support steel-concrete combined floor system of the traditional planar structure system is easy to deform out of plane and the stay cable arrangement of stay cables is complicated, the invention provides the spatial chord support steel-concrete combined floor system, wherein the cable rod system is arranged in a three-dimensional space, the out-of-plane deformation condition in the planar structure system can not occur, and the stay cable arrangement are concise, have the spatial force transmission characteristic and have stronger spanning capacity.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The space chord support steel-concrete combined floor comprises a concrete cover plate, a steel beam grid and a cable rod support assembly which are sequentially arranged from top to bottom, wherein the steel beam grid is attached to and fixedly connected with the bottom surface of the concrete cover plate, and the cable rod support assembly comprises a stay rod which is perpendicular to the bottom surface of the concrete cover plate, a rectangular circumferential cable which is parallel to the bottom surface of the concrete cover plate and an oblique cable which is arranged at an angle with the bottom surface of the concrete cover plate; the rectangular circumferential cables are arranged in a plurality of circles, the rectangular circumferential cables are coplanar and concentrically arranged, and the rectangular circumferential cables and the bottom surface of the concrete cover plate are coaxially arranged; the top end of the stay bar is connected with the nodes of the steel beam grid, the bottom end of the stay bar is connected with the top points of the rectangular circumferential cables, and each circle of the top points of the rectangular circumferential cables is provided with one stay bar; the oblique rope comprises a first oblique rope and a second oblique rope; the first oblique rope is connected between two supporting rods arranged at opposite vertexes of two adjacent rectangular circumferential ropes, one end of the first oblique rope is connected to the bottom end of the supporting rod positioned at the inner ring, and the other end of the first oblique rope is connected to the top end of the supporting rod positioned at the outer ring; one end of the second oblique rope is connected to the bottom end of the stay bar positioned at the outermost ring, and the other end of the second oblique rope is connected to a node close to the top point of the steel beam grid of the stay bar.
Preferably, the stay bar comprises a bar body, the top end of the bar body is provided with a universal steering piece capable of rotating universally relative to the top end of the bar body, the top end of the universal steering piece is fixedly connected with a node of the steel beam grid, the bottom end of the bar body is provided with a cable clamp used for connecting the rectangular circumferential cable, and the universal steering piece and the cable clamp are both provided with a first lug plate used for connecting the oblique cable.
Preferably, the top end of the rod body is provided with a connector which is in a shape of a sphere segment larger than a hemisphere; the universal steering piece comprises a connecting rod, the top end of the connecting rod is fixedly connected with the grid nodes of the steel beam, the bottom end of the connecting rod is connected with a connecting sleeve, the connecting sleeve is provided with a ball socket matched with the connector in shape, and the opening of the ball socket is downward; the connector of the rod body is sleeved in the ball socket, and the rest part of the rod body extends out of the opening of the ball socket.
Preferably, the top surface of the cable clamp is provided with a connecting groove for accommodating the top angle part of the rectangular circumferential cable, and the cable clamp is detachably connected to the bottom of the stay bar through a bolt.
Preferably, a second lug plate for connecting the second oblique cable is connected to a node at the vertex of the steel beam grid.
Preferably, a plurality of circles of the rectangular circumferential cables are sequentially arranged at equal intervals from inside to outside.
Preferably, the first diagonal cable and the second diagonal cable connected to the same stay are disposed parallel to each other.
Compared with the prior art, the invention has the advantages that:
1. The upper part of the spatial chord support steel-concrete combined floor system is provided with the concrete cover plate and the steel beam grid, the concrete cover plate and the steel beam grid form a rigid structure system together, the lower part of the spatial chord support steel-concrete combined floor system is supported by the cable rod supporting component, the supporting rods can play a supporting role in the vertical direction, the supporting rods arranged in the same circle are connected into a whole through the rectangular circumferential cables, the rectangular circumferential cables can provide prestress in the circumferential direction, simultaneously, the oblique cables arranged among the supporting rods can apply oblique prestress, the supporting rods, the rectangular circumferential cables and the oblique cables jointly form a three-dimensional spatial supporting structure system, and the spatial chord support steel-concrete combined floor system has the effect of reducing the stress span of the upper rigid structure as the elastic support of the upper rigid structure system, has higher structural efficiency and higher spanning capacity, and can fully play the material advantages of good compression performance of concrete materials and good tensile performance of steel materials and inhaul cable materials, so that the dead weight of the structure is reduced to a great extent;
2. The spatial chord support steel-concrete combined floor system provided by the invention has the advantages that the structural composition is simple, the force transmission is definite, and the cable rod system is arranged in a three-dimensional space, so that on one hand, the problem of out-of-plane instability of the cable rod system in a planar system is solved; on the other hand, the stay bars and the stay ropes are arranged simply, the indoor appearance is neat and simple, and a good visual effect is achieved;
3. according to the space chord support steel-concrete combined floor system, the universal rotation of the support rod is realized by the universal steering piece arranged at the top end of the rod body, so that the prestress loss of the rectangular circumferential cable in the tensioning construction stage can be effectively reduced, the actual value of the rectangular circumferential cable force is ensured to be consistent with the design value, and the construction quality is ensured.
Drawings
FIG. 1 is a schematic structural view of a spatial chord steel-concrete composite floor system according to an embodiment of the present invention;
FIG. 2 is an exploded view of FIG. 1;
Fig. 3 is a schematic structural view of a brace in a spatial chord steel-concrete composite floor system according to an embodiment of the present invention;
FIG. 4 is an exploded view of FIG. 3;
fig. 5 is a schematic diagram of connection between a brace and a steel beam grid in a space chord steel-concrete composite floor system according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a universal steering member in a space chord steel-concrete composite floor system according to an embodiment of the present invention;
FIG. 7 is an assembly diagram of a top end of a pole and a universal steering member in a space chord steel-concrete composite floor provided by an embodiment of the invention;
FIG. 8 is an assembly diagram of a bottom end of a rod, a cable clamp and a rectangular circumferential cable in a space chord steel-concrete composite floor system provided by an embodiment of the invention;
FIG. 9 is a schematic diagram of connection between a second diagonal cable and a node at the grid vertex of a steel beam in a space chord steel-concrete composite floor system according to an embodiment of the present invention;
In the above figures: 1. a concrete cover plate; 2. a steel beam grid; 21. a steel main beam; 22. a steel secondary beam; 23. a second ear plate; 3. a cable support assembly; 31. a brace rod; 311. a rod body; 3111. a connector; 312. a universal steering member; 3121. a connecting rod; 3122. connecting sleeves; 31221. a half connecting sleeve; 3123. a ball socket; 313. a cable clip; 3131. a connecting groove; 314. a first ear plate; 315. a bolt; 32. rectangular circumferential cables; 33. a diagonal cable; 331. a first diagonal cable; 332. and a second oblique cable.
Detailed Description
The present invention will be specifically described below by way of exemplary embodiments. It is to be understood that elements, structures, and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms such as "inner", "outer", "upper", "lower", "top", "bottom", etc. are based on the positional relationship shown in fig. 2, are merely for convenience of 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 constructed 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 relative importance.
As shown in fig. 1 and 2, the embodiment of the invention relates to a space chord support steel-concrete combined floor system, which comprises a concrete cover plate 1, a steel beam grid 2 and a cable support assembly 3 which are sequentially arranged from top to bottom, wherein the steel beam grid 2 is attached to and fixedly connected with the bottom surface of the concrete cover plate 1, the cable support assembly 3 comprises a supporting rod 31 which is perpendicular to the bottom surface of the concrete cover plate 1, a rectangular circumferential cable 32 which is parallel to the bottom surface of the concrete cover plate 1, and an oblique cable 33 which is arranged at an angle with the bottom surface of the concrete cover plate 1; the rectangular circumferential cable 32 is formed by a plurality of circles, the plurality of circles of rectangular circumferential cables 32 are arranged concentrically in a coplanar manner, and the rectangular circumferential cable 32 and the bottom surface of the concrete cover plate 1 are arranged coaxially; the top end of each supporting rod 31 is connected with a node of the steel beam grid 2, the bottom end of each supporting rod 31 is connected with the top point of each rectangular circumferential cable 32, and each top point of each circle of rectangular circumferential cable 32 is provided with one supporting rod 31; the diagonal cable 33 includes a first diagonal cable 331 and a second diagonal cable 332; the first oblique cable 331 is connected between two stay bars 31 arranged at opposite vertexes of two adjacent rectangular circumferential cables 32, one end of the first oblique cable 331 is connected to the bottom end of the stay bar 31 positioned at the inner ring, and the other end is connected to the top end of the stay bar 31 positioned at the outer ring; one end of the second diagonal cable 332 is connected to the bottom end of the stay 31 located at the outermost ring, and the other end is connected to a node near the vertex of the steel beam grid 2 of the stay 31.
The upper part of the space chord support steel-concrete combined floor system is provided with the concrete cover plate 1 and the steel beam grid 2, the concrete cover plate 1 and the steel beam grid 2 form a rigid structure system together, the lower part of the space chord support steel-concrete combined floor system is supported by the cable rod support assembly 3, the cable rod support assembly 3 has the supporting effect that the supporting rods 31 can play a role in supporting in the vertical direction, the supporting rods 31 arranged in the same circle are connected into a whole through the rectangular circumferential cables 32, the rectangular circumferential cables 32 can provide prestress in the circumferential direction, meanwhile, the oblique cables 33 arranged between the supporting rods 31 can apply oblique prestress, the supporting rods 31, the rectangular circumferential cables 32 and the oblique cables 33 form a three-dimensional space support structure system together, and the space chord support steel-concrete combined floor system has the effect of reducing the stress span of the upper rigid structure as the elastic support of the upper rigid structure system, has higher structural efficiency and stronger spanning capacity, and can fully exert the material advantages of good compression performance of concrete materials and good tensile performance of steel materials and inhaul cable materials, so that the dead weight of the structure is reduced to a great extent. Meanwhile, the spatial chord support steel-concrete combined floor system is simple in structure composition, definite in force transmission, and the cable rod system is arranged in a three-dimensional space, so that on one hand, the problem of out-of-plane instability of the cable rod system in a planar system is solved; on the other hand, the stay bars and the stay ropes are arranged simply, the indoor appearance is neat and simple, and the visual effect is good.
In the above-mentioned space chord steel-concrete composite floor, it should be noted that the steel girder mesh 2 is a common building member, which is formed by orthogonally intersecting and welding a plurality of parallel steel main girders 21 and a plurality of parallel steel sub girders 22, and the node of the steel girder mesh 2 refers to the intersection point of the steel main girders 21 and the steel sub girders 22.
As shown in fig. 3-5, the stay bar 31 includes a rod body 311, a universal steering member 312 capable of universally rotating relative to the top end of the rod body 311 is mounted at the top end of the rod body 311, the top end of the universal steering member 312 is fixedly connected to a node of the steel beam grid 2, a cable clip 313 for connecting the rectangular circumferential cable 32 is arranged at the bottom end of the rod body 311, and first lugs 314 for connecting the oblique cable 33 are arranged on the universal steering member 312 and the cable clip 313. During installation, after the universal steering piece 312 is fixedly connected to the nodes of the steel beam grid 2 in a welding mode or the like, the rectangular circumferential cable 32 is installed to the bottom end of the rod body 311 of the supporting rod 31 through the cable clamp 313, the inclined cable 33 is installed in place through the first lug plate 314, then the rectangular circumferential cable 32 or the inclined cable 33 is pretensioned by a tensioning device, and the prestress loss of the rectangular circumferential cable 32 during tensioning can be reduced through rotation of the rod body 311 of the supporting rod 31 relative to the universal steering piece 312 during tensioning. In this embodiment, the supporting rod 31 adopted realizes universal rotation by using the universal steering member 312 installed at the top end of the rod body 311, so that the prestress loss of the rectangular circumferential cable 32 in the tensioning construction stage can be effectively reduced, the actual value of the cable force of the rectangular circumferential cable 32 is ensured to be consistent with the design value, and the construction quality is ensured.
In this embodiment, as shown in fig. 6 and 7, the universal rotation connection between the top end of the rod 311 and the universal steering member 312 is that the top end of the rod 311 is provided with a connector 3111, and the connector 3111 is in a shape of a segment larger than a hemisphere; the universal steering member 312 comprises a connecting rod 3121 with the top end fixedly connected to the node of the steel beam grid 2, the bottom end of the connecting rod 3121 is connected with a connecting sleeve 3122, the connecting sleeve 3122 is provided with a ball socket 3123 matched with the shape of the connecting head 3111, and the opening of the ball socket 3123 is downward; the connector 3111 of the rod 311 is sleeved in the ball socket 3123, and the rest of the rod 311 extends out of the opening of the ball socket 3123. By the rotational fit between the coupling head 3111 and the ball socket 3123 of the coupling sleeve 3122, the lever body 311 can be rotated 360 ° about its axis, and at the same time, the lever body 311 can be deflected within the opening range of the ball socket 3123. It should be noted that, when the universal steering member 312 and the rod body 311 are assembled, the two connecting sleeve halves 31221 are fastened on the surface of the connecting head 3111, the two connecting sleeve halves 31221 are welded to form a complete connecting sleeve 3122, the connecting rod 3121 is welded at the top end of the connecting sleeve 3122, and after cooling, butter is introduced between the connecting head 3111 of the rod body 311 and the assembled connecting sleeve 3122.
In this embodiment, as shown in fig. 8, the connection manner between the bottom end of the rod body 311 and the cable clip 313 and the rectangular circumferential cable 32 is that the top surface of the cable clip 313 is provided with a connection groove 3131 for accommodating the top corner portion of the rectangular circumferential cable 32, the connection groove 3131 is in a rounded shape, and the cable clip 313 is detachably connected to the bottom of the stay bar 31 through a bolt 315. When the rectangular circumferential cable 32 is assembled, the top corner portions of the rectangular circumferential cable 32 are clamped into the connecting grooves 3131 of the cable clamps 313, and the cable clamps 313 are initially screwed to the bottom ends of the rod bodies 311 through bolts 315. It will be appreciated by those skilled in the art that other configurations of cable clips 313 may be used, as long as the rectangular circumferential cable 32 is attached to the bottom end of the rod 311.
In this embodiment, as shown in fig. 9, the connection between the second oblique cable 332 and the node at the vertex of the steel beam grid 2 is shown, and the second lug plate 23 for connecting the second oblique cable 332 is connected to the node at the vertex of the steel beam grid 2. During assembly, the second oblique cable 332 is connected to the second ear plate 23, and it will be understood that those skilled in the art may also adopt other manners to connect the second oblique cable 332 to the node at the vertex of the steel beam grid 2, so long as the connection is ensured to be firm.
In addition, in order to make the structure of the cable support assembly 3 in the space chord steel-concrete combined floor system more stable and the support effect better, as shown in fig. 2, the plurality of circles of rectangular circumferential cables 32 are sequentially arranged at equal intervals from inside to outside. Further, as shown in fig. 2, the first diagonal cable 331 and the second diagonal cable 332 connected to the same stay 31 are disposed parallel to each other.
The construction process of the space chord support steel-concrete combined floor comprises a steel structure assembling stage, a guy cable tensioning stage and a concrete slab construction stage; the concrete construction method comprises the following steps:
(1) And (3) steel structure assembling: the steel main beams 21 and the steel secondary beams 22 are installed in place in two orthogonal directions and are connected by bolt welding, so that the steel beam grids 2 are spliced; according to the arrangement condition of the stay bars 31, the top ends of the pre-assembled stay bars 31 are welded on the nodes of the steel beam grid 2; four top angles of the rectangular circumferential cable 32 are connected to the bottom ends of rod bodies 311 of four stay bars 31 in the same circle through cable clamps 313; one end of the first oblique cable 331 is connected to the first lug plate 314 at the bottom end of the inner ring stay 31, the other end of the first oblique cable 331 is connected to the first lug plate 314 at the top end of the outer ring stay 31 corresponding to the inner ring stay 31, and the first oblique cable 331 is installed from inside to outside in turn until all the first oblique cables 331 are installed; one end of the second oblique cable 332 is connected to the first lug plate 314 at the bottom end of the outermost ring stay bar 31, the other end of the second oblique cable 332 is connected to the second lug plate 23 on the node at the top point of the steel beam grid 2 corresponding to the outermost ring stay bar 31, and the second oblique cables 332 are installed one by one until all the second oblique cables 332 are installed; the cable clamp 313 at the bottom of the rod body 311 is pre-clamped from inside to outside in turn;
(2) Stretching the inhaul cable: the rectangular circumferential cable 32 or the inclined cable 33 is pre-tensioned by a tensioning device, so that the structure has certain rigidity; after pretensioning is finished, the prestress application to the rectangular circumferential cable 32 or the oblique cable 33 is gradually finished from inside to outside in a staged tensioning mode; after all tensioning work is completed, all cable clamps 313 at the bottom of the rod body 311 are clamped;
(3) And (3) a concrete slab construction stage: installing a template for pouring the concrete cover plate 1 on the top surface of the steel beam grid 2, binding steel bars, and pouring concrete to obtain the concrete cover plate 1; and after the concrete curing is completed, removing the template to complete the whole construction of the floor structure.
Claims (4)
1. The space chord support steel-concrete combined floor system is characterized in that: the cable support assembly comprises a supporting rod perpendicular to the bottom surface of the concrete cover plate, a rectangular circumferential cable parallel to the bottom surface of the concrete cover plate and an oblique cable arranged at an angle with the bottom surface of the concrete cover plate; the rectangular circumferential cables are arranged in a plurality of circles, the plurality of circles of the rectangular circumferential cables are coplanar and concentrically arranged, the plurality of circles of the rectangular circumferential cables are sequentially arranged at equal intervals from inside to outside, and the rectangular circumferential cables and the bottom surface of the concrete cover plate are coaxially arranged; the top end of the stay bar is connected with the nodes of the steel beam grid, the bottom end of the stay bar is connected with the top points of the rectangular circumferential cables, and each circle of the top points of the rectangular circumferential cables is provided with one stay bar; the oblique rope comprises a first oblique rope and a second oblique rope; the first oblique rope is connected between two supporting rods arranged at opposite vertexes of two adjacent rectangular circumferential ropes, one end of the first oblique rope is connected to the bottom end of the supporting rod positioned at the inner ring, and the other end of the first oblique rope is connected to the top end of the supporting rod positioned at the outer ring; one end of the second oblique cable is connected to the bottom end of the stay bar positioned at the outermost ring, and the other end of the second oblique cable is connected to a node close to the top point of the steel beam grid of the stay bar; the first oblique rope and the second oblique rope which are connected to the same stay bar are arranged in parallel; the stay bar comprises a bar body, a universal steering piece capable of rotating universally relative to the top end of the bar body is arranged at the top end of the bar body, the top end of the universal steering piece is fixedly connected with a node of the steel beam grid, a cable clamp used for connecting the rectangular circumferential cable is arranged at the bottom end of the bar body, and first lug plates used for connecting the oblique cable are arranged on the universal steering piece and the cable clamp.
2. The space chord steel-concrete composite floor according to claim 1, wherein: the top end of the rod body is provided with a connector which is in a shape of a sphere segment larger than a hemisphere; the universal steering piece comprises a connecting rod, the top end of the connecting rod is fixedly connected with the grid nodes of the steel beam, the bottom end of the connecting rod is connected with a connecting sleeve, the connecting sleeve is provided with a ball socket matched with the connector in shape, and the opening of the ball socket is downward; the connector of the rod body is sleeved in the ball socket, and the rest part of the rod body extends out of the opening of the ball socket.
3. The space chord steel-concrete composite floor according to claim 1, wherein: the top surface of the cable clamp is provided with a connecting groove for accommodating the top angle part of the rectangular circumferential cable, and the cable clamp is detachably connected to the bottom of the supporting rod through bolts.
4. The space chord steel-concrete composite floor according to claim 1, wherein: and a second lug plate used for connecting the second oblique cable is connected to a node at the vertex of the steel beam grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910759335.4A CN110541511B (en) | 2019-08-16 | Space chord support steel-concrete combined floor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910759335.4A CN110541511B (en) | 2019-08-16 | Space chord support steel-concrete combined floor system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110541511A CN110541511A (en) | 2019-12-06 |
| CN110541511B true CN110541511B (en) | 2024-07-16 |
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|---|---|---|---|---|
| CN1851184A (en) * | 2006-05-12 | 2006-10-25 | 北京工业大学 | Prestress steel structure brace rod adjustable nodal connection device |
| CN102199931A (en) * | 2011-01-05 | 2011-09-28 | 中建国际（深圳）设计顾问有限公司 | Annular cable chord supported grid beam structure and method for applying prestressing force to same |
| CN102926494A (en) * | 2012-11-20 | 2013-02-13 | 天津大学 | Radial spherical plain cable-strut system for suspended dome structure |
| CN211007252U (en) * | 2019-08-16 | 2020-07-14 | 青岛理工大学 | Space chord steel-concrete composite floor |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1851184A (en) * | 2006-05-12 | 2006-10-25 | 北京工业大学 | Prestress steel structure brace rod adjustable nodal connection device |
| CN102199931A (en) * | 2011-01-05 | 2011-09-28 | 中建国际（深圳）设计顾问有限公司 | Annular cable chord supported grid beam structure and method for applying prestressing force to same |
| CN102926494A (en) * | 2012-11-20 | 2013-02-13 | 天津大学 | Radial spherical plain cable-strut system for suspended dome structure |
| CN211007252U (en) * | 2019-08-16 | 2020-07-14 | 青岛理工大学 | Space chord steel-concrete composite floor |
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