CN114250910B - Rising wave type steel concrete composite beam - Google Patents
Rising wave type steel concrete composite beam Download PDFInfo
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- CN114250910B CN114250910B CN202011018648.3A CN202011018648A CN114250910B CN 114250910 B CN114250910 B CN 114250910B CN 202011018648 A CN202011018648 A CN 202011018648A CN 114250910 B CN114250910 B CN 114250910B
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- 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
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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Abstract
The invention belongs to the related technical field of constructional engineering, and discloses a rising type steel concrete composite beam which comprises a concrete body, I-shaped steel, a plurality of trapezoid connecting seats, a plurality of trapezoid fixing seats and a plurality of trapezoid waves, wherein the I-shaped steel is partially contained in the concrete body, and the trapezoid connecting seats, the trapezoid fixing seats and the trapezoid waves are respectively contained in the concrete body; the I-shaped steel comprises an upper flange plate, a web plate and a lower flange plate, wherein the opposite ends of the web plate are respectively spliced with the upper flange plate and the lower flange plate; two groups of trapezoidal fixing seats are respectively arranged on two sides of the web plate; two groups of trapezoidal waves are respectively arranged on two opposite surfaces of the upper flange plate and the lower flange plate, and the two groups of trapezoidal waves are arranged in a staggered manner; the surfaces of the upper flange plate and the lower flange plate, which are far away from the web plate, are respectively provided with a plurality of groups of trapezoidal connecting seats. The invention improves the connection fixity and ensures the normal use and bearing capacity of the composite beam.
Description
Technical Field
The invention belongs to the related technical field of constructional engineering, and particularly relates to a rising wave type steel-concrete composite beam.
Background
The steel concrete composite beam is a steel concrete composite beam composed of I-shaped steel or H-shaped steel and concrete filled in flanges at two sides, and the combination mode can give full play to the material performance of steel and concrete, effectively improves the bearing capacity, ductility and earthquake resistance of the composite beam, so the steel concrete composite beam is widely applied to large-span structures, high-rise buildings and super high-rise buildings.
Some researches have been made by those skilled in the art, for example, in patent CN107023114A, a connector of a steel and concrete composite structure and a composite beam formed by the connector are disclosed, which includes a bottom plate and a rebar positioning mechanism, the rebar positioning mechanism includes a web, a flange plate and a rebar supporting block, the bottom plate is horizontally disposed, the web is vertically disposed, and the lower end of the web is fixed on the upper end surface of the bottom plate, the flange plate is disposed above the bottom plate and is parallel to the bottom plate, one end of the flange plate is fixedly connected to the side wall of the web, a positioning notch is formed at the bottom of the flange plate, the rebar supporting block is embedded into the positioning notch, and one end of the rebar supporting block is fixedly connected to the flange plate, a rebar embedding opening is formed between the other end of the rebar supporting block and the side wall of the positioning notch, the area between the rebar supporting block and the bottom plate is a first rebar resting area, and the area in the positioning notch above the rebar supporting block is a second rebar resting area.
Disclosure of Invention
Aiming at the defects or the improvement requirements of the prior art, the invention provides the rising wave type steel-concrete composite beam, the bonding of four interfaces is increased by the mode that the trapezoidal connecting seat is additionally arranged on the upper flange plate and the lower flange plate and the trapezoidal fixing seat is additionally arranged on the trapezoidal wave web plate, and the bonding of the concrete and the I-shaped steel is firmer due to the connection of a plurality of interfaces, so that the possibility of separation of the concrete and the I-shaped steel under transverse stress is reduced, the joint work of the concrete and the concrete is ensured, and the normal use and the bearing capacity of the composite beam are ensured.
In order to achieve the above object, the present invention provides a rising wave type steel concrete composite beam, which comprises a concrete body, an i-steel, a plurality of trapezoidal connecting seats, a plurality of trapezoidal fixing seats and a plurality of trapezoidal waves, wherein the i-steel is partially contained in the concrete body, and the trapezoidal connecting seats, the trapezoidal fixing seats and the trapezoidal waves are respectively contained in the concrete body;
the I-shaped steel comprises an upper flange plate, a web plate and a lower flange plate, wherein two ends of the web plate, which are opposite to each other, are respectively spliced with the upper flange plate and the lower flange plate; two groups of trapezoidal fixing seats are respectively arranged on two sides of the web plate; two groups of trapezoidal waves are respectively arranged on two opposite surfaces of the upper flange plate and the lower flange plate, and the two groups of trapezoidal waves are arranged in a staggered manner; the surfaces of the upper flange plate and the lower flange plate, which are far away from the web plate, are respectively provided with a plurality of groups of trapezoidal connecting seats.
Furthermore, a T-shaped bulge is formed in the middle of the lower flange plate, and a T-shaped bulge is also formed in the middle of the upper flange plate; two opposite ends of the web plate are respectively provided with a T-shaped groove; the T-shaped protrusions are inserted into the T-shaped grooves, so that the upper flange plate and the lower flange plate are respectively inserted into two ends of the web plate, which are opposite to each other.
Furthermore, arc-shaped stress bulges are respectively formed on two sides of the vertical section back of the T-shaped bulge; arc stress grooves are formed in two sides of the vertical section of the T-shaped groove respectively, and the arc stress bulges are inserted in the arc stress grooves.
Further, the trapezoidal wave is arranged between two adjacent trapezoidal fixing seats; a groove is formed among the trapezoidal wave, the corresponding two adjacent trapezoidal fixing seats and the web.
Furthermore, the cross section of the trapezoidal wave perpendicular to the length direction of the trapezoidal wave is trapezoidal, and the trapezoidal wave comprises two side surfaces and a top surface which is positioned between the two side surfaces and is connected with the two side surfaces; the top surface is also provided with an arc-shaped groove.
Further, trapezoidal type ripples still include with the bottom surface that the top surface is relative, trapezoidal type ripples is seted up the filling cavity that link up, filling cavity runs through the bottom surface, and its intussuseption is filled with polyurethane foam or phenolic foam.
Furthermore, the trapezoidal connecting seats in each group of trapezoidal connecting seats are arranged at intervals in a direction perpendicular to the length direction of the web plate, and the groups of trapezoidal connecting seats on the upper flange plate are arranged at intervals along the length of the upper flange plate; the trapezoid connecting seats positioned on the lower flange plate are arranged at intervals along the length direction of the lower flange plate.
Furthermore, two sides of the trapezoid connecting seat are respectively provided with a second mounting groove, and the surface of the trapezoid connecting seat away from the web plate is provided with two first mounting grooves which are arranged at intervals; the first mounting groove and the second mounting groove are used for allowing reinforcing steel bars to pass through.
Furthermore, the two second mounting grooves are arranged in a staggered mode.
Furthermore, the arc bottom edge of the second mounting groove positioned on one side of the trapezoid connecting seat and the arc top edge of the second mounting groove positioned on the other side of the trapezoid connecting seat are positioned on the same tangent line.
Generally, compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1. the combination beam is added through upper flange plate, lower flange plate and establishes trapezoidal connecting seat and trapezoidal type ripples and web and add the form of establishing trapezoidal fixing base in order to increase the bonding at four interfaces, and the connection at a plurality of interfaces makes concrete and I-steel bond more firmly to receive the possibility of transverse stress separation between concrete and the I-steel, guaranteed to work with the concrete jointly, ensured combination beam's normal use and bearing capacity.
2. The first mounting groove and the second mounting groove on the trapezoidal connecting seat fix the reinforcing steel bars at different heights, so that the reinforcing steel bars can be conveniently stacked on one hand, and the reinforcing steel bars can be conveniently fixed on the other hand, thereby enhancing the anti-seismic performance of the combined beam, meanwhile, the concrete is partially wrapped by the I-shaped steel and is in a multidirectional stress state, a certain constraint effect is achieved, the occurrence of local buckling or integral instability of the combined beam can be effectively inhibited, and the anti-seismic performance of the combined beam is improved.
3. Trapezoidal wave on the upper flange plate and trapezoidal wave on the lower flange plate are arranged in a staggered mode, and trapezoidal wave on the upper flange plate is located between two adjacent trapezoidal waves on the lower flange plate, so that a U-shaped wavy bulge can be formed between the upper flange plate and the lower flange plate, the U-shaped wavy bulge can be greatly deformed in the process of straightening under load, the longitudinal shearing force of the combined beam under the gravity environment is weakened, the deformation capacity of the combined beam under the action of an earthquake is greatly improved, and the possibility of separation among concrete, the upper flange plate and the lower flange plate is reduced.
4. The combination beam is installed through the cooperation of the T-shaped bulge and the T-shaped groove, the installation between the upper flange plate and the lower flange plate and the web plate can be conveniently fixed, the installation stability is improved, the arc stress bulge on the T-shaped bulge and the arc stress groove on the T-shaped groove are installed in a matched mode, the stress deformation degree between the T-shaped bulge and the T-shaped groove can be improved, the possibility that the joint between the upper flange plate and the lower flange plate and the web plate is broken is reduced, the shock resistance of the combination beam under the major earthquake is greatly enhanced, meanwhile, the filling cavity is filled with polyurethane foam materials or phenolic foam materials, the filling cavity cannot extrude concrete in the straightening process, and the deformation capacity of the combination beam under the vibration state is further increased.
Drawings
FIG. 1 is a schematic structural view of a rising wave type steel reinforced concrete composite beam provided by the present invention with concrete bodies removed;
FIG. 2 is a schematic plan view of the rising steel concrete composite beam of FIG. 1;
FIG. 3 is a schematic view of the wave steel and concrete composite beam of FIG. 1 with the concrete body, the upper flange plate and a portion of the trapezoidal connector base removed;
FIG. 4 is a partial schematic view of trapezoidal shaped connecting seats of the rising wave type steel reinforced concrete composite beam of FIG. 1;
fig. 5 is a schematic structural view of a trapezoidal shaped wave of the rising type steel-concrete composite girder of fig. 1;
fig. 6 is an enlarged schematic view of a portion a of the rising type steel concrete composite girder of fig. 2.
The same reference numbers will be used throughout the drawings to refer to the same elements or structures, wherein: 1-concrete body, 2-I-steel, 21-upper flange plate, 22-web plate, 23-lower flange plate, 3-trapezoidal connecting seat, 31-second mounting groove, 32-first mounting groove, 4-trapezoidal fixing seat, 5-trapezoidal wave, 51-side surface, 52-top surface, 53-arc groove, 54-filling cavity, 6-groove, 7-T groove, 8-T protrusion, 9-arc stress groove and 10-arc stress protrusion.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the respective embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, 2, 3 and 6, the rising wave type steel reinforced concrete composite beam provided by the present invention includes a concrete body 1, an i-steel 2, a plurality of trapezoidal connecting seats 3, a plurality of trapezoidal fixing seats 4 and a plurality of trapezoidal waves 5. The trapezoidal connecting seat 3, the trapezoidal fixing seat 4 and the trapezoidal wave 5 are respectively arranged on the I-shaped steel 2. The I-shaped steel 2 is partially accommodated in the concrete body 1, and the trapezoidal connecting seat 3, the trapezoidal fixing seat 4 and the trapezoidal wave 5 are respectively accommodated in the concrete body 1.
The I-steel 2 comprises an upper flange plate 21, a web plate 22 and a lower flange plate 23, wherein two ends of the web plate 22, which are opposite to each other, are respectively spliced with the upper flange plate 21 and the lower flange plate 23. A T-shaped protrusion 8 is formed in the middle of the lower flange plate 23, and a T-shaped protrusion 8 is also formed in the middle of the upper flange plate 21. Arc-shaped stress bulges 10 are also respectively formed on two sides of the vertical section back of the T-shaped bulge 8.
T-shaped grooves 7 are formed in the two opposite ends of the web plate 22 respectively, and arc-shaped stress grooves 9 are formed in the two sides of the vertical section of each T-shaped groove 7 respectively. The T-shaped protrusion 8 and the arc-shaped stress protrusion 10 are respectively inserted into the T-shaped groove 7 and the arc-shaped stress groove 9, so that the upper flange plate 21 and the lower flange plate 23 are respectively inserted into two ends of the web plate 22, which are opposite to each other, thereby facilitating the installation and fixation of the upper flange plate 21, the lower flange plate 23 and the web plate 22, improving the installation stability, improving the stress deformation degree between the T-shaped protrusion 8 and the T-shaped groove 7, reducing the possibility of fracture of the joint between the upper flange plate 21 and the lower flange plate 23 and the web plate 22, and further greatly enhancing the shock resistance of the composite beam under a large earthquake.
In this embodiment, the shape and size of the arc stress protrusion 10 correspond to those of the arc stress groove 9, respectively; the shape and the size of the T-shaped bulge 8 correspond to the shape and the size of the T-shaped groove 7 respectively.
Two sets of trapezoidal fixing bases 4 are respectively arranged on two sides of the web plate 22, a plurality of trapezoidal fixing bases 4 in each set of trapezoidal fixing bases 4 are arranged at intervals along the length direction of the web plate 22, and the trapezoidal fixing bases 4 in the two sets of trapezoidal fixing bases 4 are respectively arranged oppositely in pairs.
Go up flange plate 21 and two relative surfaces of lower flange plate 23 are provided with two sets of trapezoidal type ripples 5 respectively, and are two sets of trapezoidal type ripples 5 sets up in a staggered manner, just trapezoidal type ripples 5 sets up adjacent two between the trapezoidal fixing base 4. A groove 6 is formed among the trapezoidal wave 5, the two corresponding adjacent trapezoidal fixing seats 4 and the web 22, and the groove 6 is used for accommodating part of the concrete body 1.
In this embodiment, the trapezoidal waves 5 on the upper flange plate 21 and the trapezoidal waves 5 on the lower flange plate 23 are arranged in a staggered manner, and the trapezoidal waves 5 on the upper flange plate 21 are located between two adjacent trapezoidal waves 5 on the lower flange plate 23, so that a U-shaped wavy protrusion can be formed between the upper flange plate 21 and the lower flange plate 23, and the U-shaped wavy protrusion can deform greatly in the process of straightening under load, thereby greatly increasing the deformation capability of the composite beam under the action of an earthquake.
Referring to fig. 5, the cross section of the trapezoidal wave 5 perpendicular to the length direction thereof is a trapezoid, and includes two side surfaces 51 and a top surface 52 located between the two side surfaces 51 and connecting the two side surfaces 51, wherein the two side surfaces 51 are disposed obliquely, and the two side surfaces are disposed symmetrically with respect to the top surface 52. The trapezoidal wave 5 further comprises a bottom surface opposite to the top surface 52, the trapezoidal wave 5 is provided with a through filling cavity 54, the filling cavity 54 penetrates through the bottom surface, and polyurethane foam material or phenolic foam material is filled in the filling cavity, so that the filling cavity 54 cannot extrude the concrete body 1 in the straightening process, and the deformation capacity of the composite beam in a vibration state is further improved.
In this embodiment, the cross section of the filling cavity 54 perpendicular to its longitudinal direction is trapezoidal. The top surface 52 is further provided with an arc-shaped groove 53, the length direction of the arc-shaped groove 53 is the same as that of the trapezoidal wave 5, and the length of the arc-shaped groove 53 is smaller than that of the top surface 52, so that the concrete body 1 can be conveniently adhered to the I-shaped steel 2, meanwhile, the arc-shaped groove 53 can also improve the deformation degree of the trapezoidal wave 5, and the anti-seismic tensile strength of the combined beam is further improved.
The surfaces of the upper flange plate 21 and the lower flange plate 23, which are far away from the web plate 22, are respectively provided with a plurality of groups of trapezoidal connecting seats 3, the trapezoidal connecting seats 3 in each group of trapezoidal connecting seats 3 are arranged at intervals in a direction perpendicular to the length direction of the web plate 22, and the plurality of groups of trapezoidal connecting seats 3 on the upper flange plate 21 are arranged at intervals along the length of the upper flange plate 21; the trapezoidal connecting seats 3 on the lower flange plate 23 are arranged at intervals along the length direction of the lower flange plate 23.
Referring to fig. 4, two sides of the trapezoidal connection seat 3 are respectively provided with second mounting grooves 31, and the surface of the trapezoidal connection seat 3 away from the web 22 is provided with two first mounting grooves 32 arranged at an interval. Two the second mounting groove 31 sets up in a staggered way, and is located trapezoidal connecting seat one side the circular arc base of second mounting groove 31 with trapezoidal connecting seat opposite side the circular arc topside of second mounting groove 31 is on same tangent line, can be convenient for the fixed of reinforcing bar on the different positions like this to the tensile strength of composite beam has been improved. The first installation groove 32 and the second installation groove 31 are used for passing through the reinforcing steel bars.
When the combined beam is installed, the upper flange plate 21 and the lower flange plate 23 are respectively inserted at two ends of the web plate 22 to form the i-shaped steel 2, the T-shaped bulge 8 and the T-shaped groove 7 are installed in a matched mode, so that the upper flange plate 21, the lower flange plate 23 and the web plate 22 can be conveniently installed and fixed, the installation stability is improved, the arc-shaped stress bulge 10 and the arc-shaped stress groove 9 are installed in a matched mode, the stress deformation degree between the T-shaped bulge 8 and the T-shaped groove 7 can be improved, the possibility that the joint between the upper flange plate 21 and the lower flange plate 23 and the web plate 22 is broken is reduced, the seismic resistance of the combined beam under heavy earthquake is greatly enhanced, reinforcing steel bars are laid in the second installation groove 31 and the first installation groove 32 on the trapezoidal connecting base 3, the reinforcing steel bars are laid into a net shape, and the position of the reinforcing steel bars is detected without errors, the concrete body 1 can be poured, after the concrete body 1 reaches the age, the effective connection between the concrete body 1 and the I-steel 2 is formed, the I-steel 2 is surrounded and partially embedded in the concrete body 1, the I-steel 2 of the concrete body 1 is in a multidirectional stress state, a certain constraint effect is achieved, the occurrence of local buckling or overall instability of the I-steel 2 can be effectively inhibited, the anti-seismic performance of the combination beam is improved, the trapezoidal connecting seat 3 and the trapezoidal wave 5 are additionally arranged on the upper flange plate 21 and the lower flange plate 23, and the trapezoidal fixing seat 4 is additionally arranged on the web plate 22 to increase the bonding of four interfaces, the bonding of the concrete body 1 and the I-steel 2 is firmer due to the connection of the interfaces, so that the possibility of separation of the concrete body 1 and the I-steel 2 under transverse stress is reduced, the I-shaped steel 2 and the concrete body 1 work together, normal use and bearing capacity of the combined beam are guaranteed, the U-shaped wavy protrusions are formed between the upper flange plate 21 and the lower flange plate 23, the U-shaped wavy protrusions can deform greatly in the process of being stressed and straightened, longitudinal shearing force of the combined beam in a gravity environment is weakened, the deformation capacity of the combined beam under the action of an earthquake is greatly improved, adhesion between the web plate 22 and the concrete body 1 is further strengthened by the grooves 6, a transition protection effect is achieved, and meanwhile the possibility of separation among the concrete body 1, the upper flange plate 21 and the lower flange plate 23 is reduced.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a wave-forming type steel concrete composite beam which characterized in that:
the combined beam comprises a concrete body, I-shaped steel, a plurality of trapezoid connecting seats, a plurality of trapezoid fixing seats and a plurality of trapezoid-shaped waves, wherein the I-shaped steel is partially accommodated in the concrete body, and the trapezoid connecting seats, the trapezoid fixing seats and the trapezoid-shaped waves are respectively accommodated in the concrete body;
the I-shaped steel comprises an upper flange plate, a web plate and a lower flange plate, wherein two ends of the web plate, which are opposite to each other, are respectively spliced with the upper flange plate and the lower flange plate; two groups of trapezoidal fixing seats are respectively arranged on two sides of the web plate; two groups of trapezoidal waves are respectively arranged on two opposite surfaces of the upper flange plate and the lower flange plate, and the two groups of trapezoidal waves are arranged in a staggered manner; the surfaces of the upper flange plate and the lower flange plate, which are far away from the web plate, are respectively provided with a plurality of groups of trapezoidal connecting seats;
the cross section of the trapezoidal wave perpendicular to the length direction of the trapezoidal wave is trapezoidal and comprises two side surfaces and a top surface which is positioned between the two side surfaces and is connected with the two side surfaces; the top surface is also provided with an arc-shaped groove; the trapezoidal wave further comprises a bottom surface opposite to the top surface, the trapezoidal wave is provided with a through filling cavity, the filling cavity penetrates through the bottom surface, and polyurethane foam material or phenolic foam material is filled in the filling cavity.
2. The rising type steel reinforced concrete composite beam according to claim 1, wherein: a T-shaped bulge is formed in the middle of the lower flange plate, and a T-shaped bulge is also formed in the middle of the upper flange plate; t-shaped grooves are formed in two opposite ends of the web plate respectively; the T-shaped protrusions are inserted into the T-shaped grooves, so that the upper flange plate and the lower flange plate are respectively inserted into two ends of the web plate, which are opposite to each other.
3. The rising type steel reinforced concrete composite beam according to claim 2, wherein: arc-shaped stress bulges are respectively formed on two sides of the back of the vertical section of the T-shaped bulge; arc stress grooves are formed in two sides of the vertical section of the T-shaped groove respectively, and the arc stress bulges are inserted in the arc stress grooves.
4. The rising type steel reinforced concrete composite beam according to claim 1, wherein: the trapezoidal wave is arranged between two adjacent trapezoidal fixed seats; a groove is formed among the trapezoidal wave, the corresponding two adjacent trapezoidal fixing seats and the web.
5. The rising type steel reinforced concrete composite beam according to any one of claims 1 to 4, wherein: the trapezoidal connecting seats in each group of trapezoidal connecting seats are arranged at intervals in a direction perpendicular to the length direction of the web plate, and the multiple groups of trapezoidal connecting seats on the upper flange plate are arranged at intervals along the length of the upper flange plate; the trapezoid connecting seats positioned on the lower flange plate are arranged at intervals along the length direction of the lower flange plate.
6. The rising type steel reinforced concrete composite beam according to claim 5, wherein: two sides of the trapezoid connecting seat are respectively provided with a second mounting groove, and the surface of the trapezoid connecting seat, which is far away from the web plate, is provided with two first mounting grooves which are arranged at intervals; the first mounting groove and the second mounting groove are used for a reinforcing steel bar to pass through.
7. The rising type steel reinforced concrete composite beam according to claim 6, wherein: the two second mounting grooves are arranged in a staggered mode.
8. The rising type steel reinforced concrete composite beam according to claim 7, wherein: the arc bottom edge of the second mounting groove positioned on one side of the trapezoid connecting seat and the arc top edge of the second mounting groove positioned on the other side of the trapezoid connecting seat are positioned on the same tangent line.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011018648.3A CN114250910B (en) | 2020-09-24 | 2020-09-24 | Rising wave type steel concrete composite beam |
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| CN202011018648.3A CN114250910B (en) | 2020-09-24 | 2020-09-24 | Rising wave type steel concrete composite beam |
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| CN114250910B true CN114250910B (en) | 2022-11-01 |
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| 正弦波纹腹板工形截面悬臂钢梁的弹性整体稳定研究;鱼路焕等;《四川建筑科学研究》;20200831;第46卷(第4期);第34-40页 * |
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