CN107143088B - Anti die-cut concrete ten-shaped column plate node and concrete slab node - Google Patents
Anti die-cut concrete ten-shaped column plate node and concrete slab node Download PDFInfo
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- CN107143088B CN107143088B CN201710559315.3A CN201710559315A CN107143088B CN 107143088 B CN107143088 B CN 107143088B CN 201710559315 A CN201710559315 A CN 201710559315A CN 107143088 B CN107143088 B CN 107143088B
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- 239000004567 concrete Substances 0.000 title claims abstract description 94
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 214
- 239000010959 steel Substances 0.000 claims abstract description 214
- 238000009415 formwork Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 abstract description 10
- 238000004080 punching Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 230000003993 interaction Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 8
- 239000011150 reinforced concrete Substances 0.000 description 7
- 238000003466 welding Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000003351 stiffener Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 229920002582 Polyethylene Glycol 600 Polymers 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000005265 energy consumption Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/36—Columns; Pillars; Struts of materials not covered by groups E04C3/32 or E04C3/34; of a combination of two or more materials
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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
- E04B1/38—Connections for building structures in general
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Abstract
The invention relates to the field of constructional engineering, in particular to an anti-cutting concrete cross-shaped column plate node and a concrete slab node, wherein the concrete slab node is formed by connecting a concrete floor and the anti-cutting concrete cross-shaped column plate node; the profile steel structure can increase the contact area in a floor slab and reduce the stress concentration phenomenon; under the effect of punching load, the first profile steel module is extruded with the interaction mode between the floor slab, and the bearing capacity of concrete can be improved.
Description
Technical Field
The invention relates to the field of constructional engineering, in particular to an anti-shear concrete cross-shaped column plate node and a concrete plate node.
Background
Modern civilization has brought about the transformation of people to the aesthetic concept of things, and as a vertical bearing member in a frame structure, namely a column, the traditional form is a rectangular section, and the effect of building function and visual sense discomfort are influenced by the fact that the column edge protrudes out of the wall surface. The special-shaped column structure has the characteristic of equal thickness with a filler wall, so that the column ribs are prevented from protruding out of the wall surface, the actual use area of a room is increased, the room rate is improved, and the special-shaped column structure is deeply favored by industry owners and users. With the continuous development of commercial buildings such as houses, offices and the like towards high-rise and super high-rise, the width of the column limb of the special-shaped column structure is necessarily increased, so that the contradiction between the use function of the special-shaped column structure and the use function of the buildings is generated, and the popularization and the use of the special-shaped column structure are limited. Compared with the traditional Reinforced Concrete (RC) rectangular column, the reinforced concrete special-shaped column has the advantage that the seismic capacity is weakened due to the special-shaped section, so that how to improve the seismic performance of the special-shaped column structure is also a great subject.
In order to meet the requirements of structural bearing capacity and seismic performance, steel and concrete composite structures are increasingly receiving attention in the industry because of the consideration of the two factors. The Steel Reinforced Concrete (SRC) composite structure is a type of steel and concrete composite structure, and has the common advantages of the composite structure, namely high bearing capacity and good anti-seismic performance, and compared with a steel structure and a steel pipe concrete structure, the durability and the fire resistance of internal steel are improved by the externally-coated concrete. The research shows that: the section steel concrete special-shaped column is provided with more steel in the section, so that the steel content is greatly increased, and the bearing capacity and the earthquake resistance index are enhanced compared with those of an RC special-shaped column.
The section steel concrete special-shaped column not only has higher bearing capacity and rigidity and good earthquake ductility and energy consumption capability, but also meets the requirements on building functions, and is suitable for popularization and application in high-rise buildings. In addition, people urgently need higher building indoor headroom to meet the requirements of vision viewing, building functions, fire fighting functions, traditional building geomantic omen and the like, and therefore a flat slab system is produced at the same time. The slab-column structure is used as a type of flat slab system, and the good integrity, the wide building space and the considerable economic benefit of the slab-column structure are more and more concerned by people. However, when such a structure is subjected to a strong earthquake, the additional stress caused by unbalanced bending moment can produce an amplification effect at the periphery of the column, and when the shear stress is too large and an effective shearing resisting measure is lacked, the punching damage at the node of the plate column is very likely to occur, and even the continuous collapse of the structure is caused. Compared with a beam-plate-column structure system, the existence of the beam can effectively adjust the bending moment and the shearing force at the node, and meanwhile, certain rigid constraint is provided for the node. Therefore, the seismic performance of the slab-column joint is inferior to that of the beam-slab-column joint. In fact, the anti-shear problem of the plate column joint is a weak link in the whole system. In general, extending the contact area between the posts and the plates by placing caps or attaching pallets on top of the posts can be used to mitigate the post-to-plate punching action, but in most cases it is not appropriate to place caps or pallets, which are unsightly, for example in apartment buildings. In addition, the cap or pallet also causes inconvenience to the binding of the reinforcing bars and the formwork. Therefore, in the prior art, a method of configuring a bent reinforcing bar is mostly adopted to solve the anti-cutting problem of a plate column node in a plate column structure.
The structural form after the combination of the flat slab and the special-shaped column structure not only increases the indoor clearance of the building, but also avoids the frame column from protruding the wall surface, and the effective exertion of the building function is dually ensured. Therefore, the steel reinforced concrete special-shaped column-plate structure can be used as a preferred form of a high-rise large bay structure. Considering that more section steel is arranged in the section steel concrete special-shaped column, and the section steel in the conventional steel distribution mode has a longer flange and is arranged in parallel with the side of the column limb in the thickness direction, it is difficult to penetrate bent steel bars into the column by adopting a conventional means, so that it is particularly necessary to find an anti-cutting component which is simple in structure, convenient to construct and reasonable in force transmission.
Disclosure of Invention
The invention aims to provide an anti-shear concrete cross-shaped column plate node which can increase the contact area with a floor slab and reduce the stress concentration phenomenon; the bearing capacity can be improved, the tie effect can be increased and the like.
Another object of the present invention is to provide a concrete slab node which has a simple structure, is convenient and fast to construct, has a low cost, has a reasonable force transmission, and can enhance the anti-shear capability between a concrete floor slab and an anti-shear concrete cross-shaped column slab node.
The embodiment of the invention is realized by the following steps:
a cross-shaped column plate node for anti-cutting concrete comprises a section steel structure and a cross-shaped concrete column, wherein the section steel structure comprises a section steel column, four steel plates and four annular steel plates, every two adjacent steel plates are connected with one annular steel plate, the section steel column comprises a first web plate and a second web plate, the first web plate and the second web plate are arranged in a crossed mode, flanges are arranged at two ends of the first web plate and two ends of the second web plate, and each flange is connected with one steel plate; the cross-shaped concrete column is connected to the section steel column.
In a preferred embodiment of the present invention, the steel plates include a first steel plate and a second steel plate, the annular steel plate connects two adjacent first steel plates, the second steel plate connects the side walls of the first steel plates facing the height direction of the section steel column, and the cross sections of the steel plates form a "T" shape.
In a preferred embodiment of the invention, at least one peg is provided along the length of the second steel plate.
In a preferred embodiment of the present invention, a stiffening rib is disposed at a connection portion of the first steel plate and the flange, and the stiffening rib is disposed on a side of the first steel plate away from the second steel plate.
In a preferred embodiment of the invention, the thickness of the first steel plate is equal to the thickness of the annular steel plate.
In a preferred embodiment of the present invention, a formwork supporting space is reserved between one side of the annular steel plate close to the section steel column and the section steel column.
In a preferred embodiment of the present invention, the width of the flange is greater than or equal to the width of the steel plate.
In a preferred embodiment of the present invention, the first web is perpendicular to the second web.
In the preferred embodiment of the invention, the oppositely disposed flanges are parallel.
A concrete slab node comprises a concrete floor and the anti-punching concrete cross-shaped column slab node, wherein the concrete floor is connected with the steel plate.
The anti-cutting concrete cross-shaped column plate node and the concrete slab node have the beneficial effects that: after the steel plate spliced by the annular steel plates is connected with the profile steel structure, the contact area of the column in the floor slab is equivalently expanded, and the stress concentration phenomenon is reduced; the steel plate spliced by the annular steel plates is extruded with the floor slab in an interaction mode under the action of punching load, so that the characteristic of good bearing capacity of concrete is well exerted; the method has the advantages that the trouble that the bent steel bar needs to pass through a web plate in the section steel concrete special-shaped column is avoided only through simple structural measures such as welding, steel plate extension and the like, meanwhile, the method is more definite in stress relative to the bent steel bar, and the advantages of mechanical properties of materials can be fully played.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a concrete slab node according to a first embodiment of the present invention;
FIG. 2 is a first structural schematic view of a section steel structure according to a first embodiment of the present invention;
FIG. 3 is a second structural schematic view of a section steel structure according to a first embodiment of the present invention;
fig. 4 is a schematic structural view of a concrete slab node according to a second embodiment of the present invention;
FIG. 5 is a schematic structural view of a section steel structure according to a second embodiment of the present invention.
Icon: 10 a-a concrete slab node; 10 b-a concrete slab node; 100-anti-shear concrete cross-shaped column plate node; 200-section steel structure; 300 a-section steel column; 300 b-section steel column; 310-a first web; 320-a second web; 330 a-flange; 330 b-flanges; 400 a-steel plate; 400 b-steel plate; 410 a-a first steel plate; 410 b-a first steel plate; 420 a-a second steel plate; 420 b-a second steel plate; 500-ring-shaped steel plate; 600-studs; 700-a stiffener; 800-connecting plate; 810-a cross-shaped concrete column; 820-concrete floor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the terms "upper", "lower", "vertical", "inner", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged in use of products of the present invention, which are merely for convenience of description and simplification of description, but do not indicate or imply that the referred devices or elements must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be further noted that the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Referring to fig. 1, the present embodiment provides a concrete slab node 10a, which includes a concrete slab 820 and an anti-cut concrete cross slab node 100, wherein the concrete slab 820 is connected with the anti-cut concrete cross slab node 100.
The anti-punching concrete cross-shaped column plate node 100 comprises a cross-shaped concrete column 810 and a profile steel structure 200, wherein the cross-shaped concrete column 810 is connected to the profile steel structure 200, specifically, the cross-shaped concrete column 810 can be arranged at one end or two ends of the profile steel structure 200, and the cross-shaped concrete column 810 is arranged at one end only in the embodiment.
Specifically, referring to fig. 2, the section steel structure 200 includes a section steel column 300a, four steel plates 400a, and four annular steel plates 500, wherein one annular steel plate 500 is connected between two adjacent steel plates 400 a; the section steel column 300a includes a first web 310 and a second web 320, the first web 310 and the second web 320 are arranged in an intersecting manner, the intersecting position may be the middle of the first web 310 and the second web 320, flanges 330a are arranged at both ends of the first web 310 and the second web 320, and each flange 330a is connected with one steel plate 400 a. The number of the steel plates 400a is 4 and the number of the ring-shaped steel plates 500 is 4 in this embodiment, but not limited thereto, and the number of the steel plates 400a and the ring-shaped steel plates 500 may be 2 in other embodiments.
Further, the first web 310 and the second web 320 may be vertically crossed, that is, the included angle at the connection position of the first web 310 and the second web 320 is 90 °, and the section center of the section steel column 300a is in a cross shape. The flanges 330a at the two ends of the first web 310 and the second web 320 are perpendicular to the first web 310 and the second web 320, respectively, and it can be known that the flanges 330a at the two ends of the first web 310 are arranged in parallel, and similarly, the flanges 330a at the two ends of the second web 320 are also arranged in parallel. The section steel column 300a may be welded from steel plates of corresponding specifications, and the specific shape of the section thereof may be a cross with a flange 330 a.
The steel plate 400a includes a first steel plate 410a and a second steel plate 420a, the annular steel plate 500 connects the adjacent first steel plates 410a, the second steel plate 420a is connected to the first steel plate 410a on a plane facing the height direction of the section bar 300a, and preferably, the second steel plate 420a is disposed perpendicular to the first steel plate 410a, that is, the section of the steel plate 400a composed of the first steel plate 410a and the second steel plate 420a is T-shaped. The width of the first steel plate 410a may be less than or equal to the width of the flange 330a, so as to ensure the pouring quality of the slab node concrete. The connection between the T-shaped steel plate 400a and the flange 330a may be welding, but is not limited thereto, and may be other connection methods such as bolting.
At least one peg 600 is disposed along the length direction of the second steel plate 420a, and the number of pegs 600 on each second steel plate 420a is 9 in this embodiment, but not limited thereto, and the number of pegs 600 may also be 5, 6, 12, etc. in other embodiments. The predetermined studs 600 may strengthen the connection between the steel structure 200 and the concrete floor.
Referring to fig. 3, a stiffener 700 (a triangular steel plate) is further disposed at a connection portion between the first steel plate 410a and the flange 330a, and the stiffener 700 is disposed on a side of the first steel plate 410a away from the second steel plate 420a to enhance reliable connection between the steel plate 400a and the central section steel column 300 a; the joint between the first steel plate 410a and the flange 330a refers to a right angle at which the first steel plate 410a and the flange 330a are connected. It should be noted that the number of the stiffening ribs 700 disposed below each first steel plate 410a may be 1, 2, 3, and the like, which is not limited herein, and the number of the stiffening ribs 700 below each first steel plate 410a is 2 in this embodiment.
The annular steel plate 500 may be a circular arc steel plate, and in this embodiment, the circular arc annular steel plate 500 may be welded to the first steel plate 410a, but the present invention is not limited thereto, and in other embodiments, the circular arc annular steel plate 500 may also be a steel plate having another shape such as a triangle.
Referring to fig. 2, the thickness of the circular arc-shaped ring-shaped steel plate 500 is the same as that of the first steel plate 410a, and the thickness refers to the thickness of the first steel plate 410a in the axial direction of the steel structure 200 when the steel structure 200 is vertically placed.
The adjacent steel plates 400a are connected by circular arc-shaped annular steel plates 500 to form a space steel structure node system, the annular steel plates 500 surround corners of the section steel column 300a, and the annular steel plates 500 reserve the thickness of the formwork at the corners to ensure formwork supporting space. The width of the annular structure formed by connecting the annular steel plate 500 and the steel plate 400a may be one to two times of the width of the first web 310 or the second web 320 of the section steel column 300a, and the widths of the first web 310 and the second web 320 refer to: the distance between the flanges 330a at both ends of the first web 310 or the distance between the flanges 330a at both ends of the second web 320.
Specifically, the cross-shaped concrete column 810 refers to a concrete column having a cross-shaped section.
Further, the concrete floor 820 is connected to the steel plate 400a, and the lower surface of the concrete floor 820 and the lower surface of the first steel plate 410a can be disposed at the same horizontal plane (kept flush), and the second steel plate 420a is embedded inside the concrete floor 820, i.e. the steel plate 400a is disposed inside the concrete floor 820 in an inverted "T" shape; the purpose of the above arrangement mode is to exert the bearing capacity of the concrete to the maximum extent, that is, the concrete floor 820 is directly supported on the column, the bearing action of the T-shaped steel plates 400a spliced by the circular steel plates 500 after the load is transmitted to the column from the floor effectively delays the punching action, and the steel plates 400a spliced by the circular steel plates 500 have the tendency of mutual extrusion under the punching load action of the concrete floor 820. Specifically, the height of the section of the steel plate 400a in the height direction thereof is not more than half the thickness of the concrete floor 820, so as to ensure a concealing effect of laying pipes and the like in the plate.
It should be noted that, if the stressed steel bars at the bottom of the concrete floor 820 need to be disposed on the steel plate 400a, the stressed steel bars may be cut off and welded to the second steel plate 420a of the steel plate 400a, or the stressed steel bars may be disposed in the holes after the holes are formed in the second steel plate 420a of the steel plate 400 a.
It should be further noted that the concrete floor 820 may have a square shape, but is not limited thereto, and in other embodiments, may have other shapes such as a circular shape.
The beneficial effects of the concrete slab node 10a are: the concrete slab node 10a is connected with a steel plate 400a with a T-shaped section, a reinforced steel column 300a and a concrete floor 820 by the spliced circular arc-shaped annular steel plates 500, so that the anti-cutting capability between the anti-cutting concrete cross-shaped column plate node 100 and the concrete floor 820 can be enhanced on the basis of not changing the original design structure of the plate-column node; meanwhile, no matter the design and the manufacture or the construction of the supporting formwork are carried out, the T-shaped steel plate 400a spliced by the circular arc-shaped annular steel plate 500 and the section steel column 300a are very simple to connect, and the characteristic of good bearing capacity of concrete can be exerted to the maximum extent; the concrete slab node 10a can be applied to a center pillar node of a steel reinforced concrete special-shaped pillar frame flat slab system.
Example two
Referring to fig. 4, the present embodiment provides a concrete slab node 10b having a similar structure to the concrete slab node 10a provided in the first embodiment, and the same point as the first embodiment, except that the steel plates 400b are connected to the flanges 330b of the section steel columns 300b through connection plates 800 instead of welding, as follows.
One end of the steel plate 400b is welded to the connection plate 800, and the connection plate 800 is detachably connected to the flange 330b of the section steel column 300 b. The detachable connection may be a connection of the steel plate 400b to the section bar 300b by bolts or the like. The steel plates 400b are detachably connected, so that partial assembly type assembly of a combined structure can be realized, the construction progress is accelerated, and the quality of welding seams at the joints of the steel plates 400b is ensured, so that the requirements of building industrialization technology are met.
Please refer to fig. 5, the stiffening rib 700 in the present embodiment may be disposed at the welding position of the first steel plate 410b and the connecting plate 800, and specifically, may be disposed on a side of the first steel plate 410b away from the second steel plate 420 b. The stiffener 700 may make the connection of the steel plate 400b and the connection plate 800 more stable. It should be further noted that the number of the stiffening ribs 700 disposed below each first steel plate 410b may be 1, 2, 3, etc., and is not limited herein, and the number of the stiffening ribs 700 below each first steel plate 410b is 2 in this embodiment.
The beneficial effects of the concrete slab node 10b are: the concrete slab node 10b can enhance the anti-cutting ability of the column and the floor slab, and exert the characteristic of good bearing capacity of concrete, and can also realize partial assembly type assembly of a combined structure, accelerate the construction progress and ensure the quality of welding seams at the joint of the steel plate 400b so as to meet the requirements of the building industrialization technology.
In conclusion, the anti-cutting concrete cross-shaped column plate node and the concrete slab node have the beneficial effects that:
(1) after the steel plate spliced by the annular steel plates is connected with the profile steel structure, the contact area of the column in the floor slab is equivalently expanded, and the stress concentration phenomenon is reduced;
(2) the steel plate spliced by the annular steel plates is extruded with the floor slab in an interaction mode under the action of punching load, so that the characteristic of good bearing capacity of concrete is well exerted;
(3) the stud arranged on the steel plate can enhance the connection between the steel plate and the concrete floor and increase the tie effect;
(4) the method has the advantages that the trouble that the bent steel bar needs to pass through a web plate in the section steel concrete special-shaped column is avoided only through simple structural measures such as welding, steel plate extension and the like, meanwhile, the method is more definite in stress relative to the bent steel bar, and the advantages of mechanical properties of materials can be fully played.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The cross-shaped column plate node is characterized by comprising a section steel structure and a cross-shaped concrete column, wherein the section steel structure comprises a section steel column, four steel plates and four annular steel plates, every two adjacent steel plates are connected with one annular steel plate, the section steel column comprises a first web plate and a second web plate, the first web plate and the second web plate are arranged in a crossed mode, flanges are arranged at two ends of the first web plate and two ends of the second web plate, and each flange is connected with one steel plate; the cross-shaped concrete column is connected to the section steel column;
a formwork supporting space is reserved between one side, close to the section steel column, of the annular steel plate and the section steel column;
the width of the flange is larger than or equal to that of the steel plate.
2. The cut-resistant concrete ten-column panel node according to claim 1, characterized in that the steel plates comprise a first steel plate and a second steel plate, the annular steel plate connects two adjacent first steel plates, the second steel plate connects the side wall of the first steel plate facing the height direction of the section steel column, and the steel plate cross section forms a T shape.
3. The cut-resistant concrete ten-column panel node of claim 2, characterized in that at least one peg is provided along the length of said second steel plate.
4. The cut-resistant concrete ten-column panel node of claim 2, characterized in that a stiffening rib is provided at the junction of said first steel plate and said flange, and said stiffening rib is provided on the side of said first steel plate remote from said second steel plate.
5. The cut-resistant concrete ten-column plate node of claim 2, wherein said first steel plate has a thickness equal to a thickness of said annular steel plate.
6. The cut-resistant concrete ten-column panel node of claim 1, wherein said first web is perpendicular to said second web.
7. The cut-resistant concrete ten-column panel joint of claim 1, wherein said flanges are parallel.
8. A concrete slab node comprising a concrete floor and the cut-resistant concrete cross slab node of any one of claims 1-7, said concrete floor being connected to said steel plates.
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| CN110747895A (en) * | 2019-10-12 | 2020-02-04 | 上海建工五建集团有限公司 | Detachable steel structure column cap used in reverse construction method and cross section size calculation method thereof |
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| US4569451A (en) * | 1984-04-06 | 1986-02-11 | Gower Corporation | Connector structure for tubular marginal constructions |
| JP2002115332A (en) * | 2000-10-11 | 2002-04-19 | Matsushita Electric Works Ltd | Structure for reinforcing composite beam and structure for connecting composite beam to wooden column |
| CN202416704U (en) * | 2012-02-23 | 2012-09-05 | 山东同圆设计集团有限公司 | Obliquely-arranged concrete cap |
| CN105863050A (en) * | 2016-04-17 | 2016-08-17 | 北京工业大学 | Function-restorable assembly type wave web beam-column composite joint connection device |
| CN106368332A (en) * | 2016-11-09 | 2017-02-01 | 福州大学 | Shock insulation structure of reinforced concrete beam column node and construction method thereof |
| CN206941967U (en) * | 2017-07-10 | 2018-01-30 | 南京工业大学 | Anti die-cut concrete ten-shaped column plate node and concrete slab node |
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| CN107143088A (en) | 2017-09-08 |
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