CN113737967A - Connecting structure of section steel reinforced concrete column and concrete beam and construction method - Google Patents
Connecting structure of section steel reinforced concrete column and concrete beam and construction method Download PDFInfo
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- CN113737967A CN113737967A CN202111097375.0A CN202111097375A CN113737967A CN 113737967 A CN113737967 A CN 113737967A CN 202111097375 A CN202111097375 A CN 202111097375A CN 113737967 A CN113737967 A CN 113737967A
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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
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
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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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Abstract
The invention relates to the technical field of section steel concrete, in particular to a connection structure of a section steel reinforced concrete column and a concrete beam and a construction method. The lower part of the whole profile steel concrete column adopts a cross column, the upper part adopts a hollow box type column, and the outer wall of the profile steel concrete column is provided with a rivet, so that the combination with concrete can be increased, the steel column and the concrete are ensured to be preferentially integrated, the overall anti-seismic performance of the profile steel concrete column is improved, and the overall rigidity and the reliable strength of the profile steel concrete column can be ensured by binding vertical reinforcing bars outside the profile steel concrete column; the profile steel concrete beam is welded and connected with the profile steel upper section column through a special bracket rib plate serving as a connecting node, and the size of the bracket rib plate is matched with the size of the section of the profile steel concrete beam, so that the connection between the profile steel concrete beam and the column can be more stable; meanwhile, the steel concrete column adopts a structure with a large upper section and a small lower section, so that the steel consumption can be saved to a certain extent.
Description
Technical Field
The invention relates to the technical field of section steel concrete, in particular to a connection structure of a section steel reinforced concrete column and a concrete beam and a construction method.
Background
The steel reinforced concrete technology is an independent structural type for embedding section steel into reinforced concrete, and because the section steel has very high strength and ductility, after the section steel is added into the reinforced concrete, compared with the traditional single steel structure, the steel reinforced concrete structure has the advantages of good fireproof performance, good structure local and overall stability and steel saving. Has extremely important significance for the development, optimization and improvement of the earthquake-resistant performance of the multi-story and high-rise buildings in China.
The existing steel reinforced concrete structure can be generally divided into two types of a steel reinforced concrete beam and a steel reinforced concrete column, the steel reinforced concrete beam and the steel reinforced concrete column are often required to be matched in actual use, the steel reinforced concrete beam and the steel reinforced concrete column are generally and directly welded and used in the prior art, the construction cost is high, the construction process is complex, the construction difficulty is high, and the seismic capacity and the strength of the structure are limited.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a shaped steel reinforced concrete column and concrete beam connection structure and construction method, this structure can improve shaped steel reinforced concrete column and the holistic shock resistance and the intensity of concrete beam, and this construction method can save construction cost, and construction convenience.
In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a shaped steel reinforced concrete column and concrete beam connection structure, sets up on basis 13, including linking shaped steel concrete column and the 10 two parts of shaped steel concrete beam together, its characterized in that: the section steel concrete column comprises a section steel lower section column 1 and a section steel upper section column 5 which are connected together, the section steel lower section column 1 is a cross column, the upper part of the section steel upper section column 5 is a hollow box column, the lower part of the section steel upper section column 5 is a hollow quadrangular frustum column, and the bottom of the hollow quadrangular frustum column at the lower part of the section steel upper section column 5 is connected with the top of the section steel lower section column 1 into a whole;
rivets 2 are arranged on the outer walls of the section steel lower section column 1 and the section steel upper section column 5, vertical reinforcing steel bars 3 are bound on the outer sides of the section steel lower section column 1 and the section steel upper section column 5, concrete layers I4 are poured on the outer sides of the section steel lower section column 1 and the section steel upper section column 5, upper transverse through-length reinforcing steel bars 7 and lower transverse through-length reinforcing steel bars 8 are arranged on the inner upper side and the outer side of the section steel concrete beam 10 respectively, and concrete layers II 9 are poured on the outer sides of the upper transverse through-length reinforcing steel bars 7 and the lower transverse through-length reinforcing steel bars 8;
the bottom of the section steel lower section column 1 is connected with a foundation 13 through a connecting piece 12, and the section steel concrete beam 10 is connected with the section steel upper section column 5 through a bracket rib plate 6 as a connecting node.
Further, the sectional area of the hollow box-shaped column at the upper part of the section steel upper section column 5 is larger than that of the section steel lower section column 1.
Further, bracket gusset 6 is located shaped steel upper segment post 5, its size and shaped steel concrete beam 10 cross-sectional dimension looks adaptation, go up horizontal logical long reinforcing bar 7 and horizontal logical long reinforcing bar 8 down and carry out two-sided being connected with the upper and lower flange board of bracket gusset 6 respectively, waist muscle 11 of shaped steel concrete beam 10 carries out two-sided being connected with the web of bracket gusset 6.
Further, the connecting length of the upper transverse through long steel bar 7 and an upper flange plate of the bracket rib plate 6 is 5L, wherein L is the diameter of the upper transverse through long steel bar 7; the connecting length of the lower transverse through long steel bar 8 and the lower flange plate of the bracket rib plate 6 is 5M, wherein M is the diameter of the lower transverse through long steel bar 8; the connecting length of the waist rib 11 and the web plate of the bracket rib plate 6 is 5N, wherein N is the diameter of the waist rib 11.
Further, the connection mode of the section steel lower section column 1 and the section steel upper section column 5 is specifically welding, the connecting piece 12 is a connecting bolt, the connection mode of the section steel lower section column 1 and the foundation 13 is specifically bolt fixed connection, and the connection mode of the bracket rib plate 6 and the section steel upper section column 5 is specifically welding.
Further, the upper transverse through long steel bar 7 and the lower transverse through long steel bar 8 are respectively in double-face welding with the upper flange plate and the lower flange plate of the bracket rib plate 6, and the waist rib 11 is in double-face welding with the web plate of the bracket rib plate 6.
A construction method of a connecting structure of a section steel reinforced concrete column and a concrete beam comprises the following steps:
s1, checking the position and the elevation size of the connecting piece 12 pre-embedded in the foundation 13, fixing the section steel lower section column 1 on the foundation 13 through the connecting piece 12, and rechecking the axis and the elevation size of the section steel lower section column 1;
s2, binding vertical steel bars 3 on the outer side of the section steel lower column 1, and binding the vertical steel bars 3 to the top position of the section steel lower column 1;
s3, hanging the section steel upper section column 5 to a proper position on the top of the section steel lower section column 1, and welding the section steel upper section column 5 and the section steel lower section column 1 into a whole;
s4, after confirming that the steps 1, 2 and 3 are finished, continuously binding the vertical steel bars 3 to the top of the section steel upper section column 5;
s5, after checking and accepting the vertical steel bars 3, performing die sealing and reinforcing on the section steel lower section column 1 and the section steel upper section column 5;
s6, pouring a concrete layer I4 outside the section steel concrete column to the position 300mm from the bottom of the section steel concrete beam 10, respectively forming square holes at four corners of a hollow quadrangular frustum pyramid at the lower part of the section steel upper section column 5 in the pouring process, inserting vibrating rods from the square holes for vibrating, and arranging a specially-assigned person at the outer side of a template of the section steel concrete column for knocking;
s7, after the formwork support frame is erected, binding an upper transverse through long steel bar 7, a lower transverse through long steel bar 8 and a waist bar 11 of the steel reinforced concrete beam 10;
s8, welding the upper transverse through long steel bar 7, the lower transverse through long steel bar 8 and the waist bar 11 with the bracket rib plate 6 on the section steel upper section column 5 to ensure that the welding length meets the requirement;
s9, after the acceptance-type steel concrete beam 10 and the section steel upper section column 5 are welded to be correct, a concrete layer II 9 outside the section steel concrete beam 10 is poured;
and S10, checking and accepting that the concrete layer I4 and the concrete layer II 9 are poured, and pouring high-throwing self-compacting concrete from top to bottom from the top of the hollow box-type column on the upper part of the section steel upper section column 5 after the strength reaches 75% of the design strength.
Further, the section steel lower section column 1 and the section steel upper section column 5 are processed and manufactured in a factory in advance and then are directly installed on site.
Further, the size of bracket gusset 6 and the cross-sectional dimension looks adaptation of shaped steel concrete beam 10, go up horizontal through long reinforcing bar 7 and horizontal through long reinforcing bar 8 down carry out double-sided welding with the upper and lower flange board of bracket gusset 6 respectively, waist muscle 11 carries out double-sided welding with the web of bracket gusset 6.
Further, the high-throwing self-compacting concrete is micro-expansion shrinkage-free fine aggregate concrete.
Compared with the prior art, the invention has the following main advantages:
1. because the lower part of the whole profile steel concrete column adopts the cross column, the upper part adopts the hollow box-type column, and the profile steel concrete column is installed and fixed in sections, the lower section of the profile steel concrete column can be fixed more stably and reliably, and the upper section can be conveniently installed and connected;
2. the rivets are arranged on the outer wall of the profile steel concrete column, so that the combination with concrete can be increased, the steel column and the concrete are ensured to be preferentially integrated, the overall anti-seismic performance of the profile steel concrete column is improved, and the overall rigidity and the strength of the profile steel concrete column are ensured to be reliable by binding vertical reinforcing bars outside the profile steel concrete column;
3. the profile steel concrete beam is welded and connected with the profile steel upper section column through a special bracket rib plate serving as a connecting node, and the size of the bracket rib plate is matched with the size of the section of the profile steel concrete beam, so that the connection between the profile steel concrete beam and the column can be more stable;
4. because the steel reinforced concrete column adopts a structure with a large upper section and a small lower section, the steel consumption can be saved to a certain extent.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a cross-sectional view of a structure A-A of the present invention;
FIG. 3 is a cross-sectional view of structure B-B of the present invention;
FIG. 4 is a cross-sectional view of structure C-C of the present invention;
fig. 5 is an enlarged schematic view of the portion D of the structure of the present invention.
In the figure: 1. a lower section column of the section steel; 2. riveting; 3. vertical reinforcing steel bars; 4. a concrete layer I; 5. the section steel is provided with a column; 6. a bracket gusset plate; 7. an upper transverse through-length reinforcing steel bar; 8. a lower transverse through-length steel bar; 9. a concrete layer II; 10. a steel reinforced concrete beam; 11. waist tendon; 12. a connecting member; 13. and (4) a foundation.
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 embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
It should be noted that, according to the implementation requirement, each step/component described in the present application can be divided into more steps/components, and two or more steps/components or partial operations of the steps/components can be combined into new steps/components to achieve the purpose of the present invention.
In an embodiment of the present invention, as shown in fig. 1 to 5, a structural steel reinforced concrete column and concrete beam connection structure is disposed on a foundation 13, and includes two parts, namely, a structural steel reinforced concrete column and a structural steel reinforced concrete beam 10, which are connected together, and is characterized in that: the section steel concrete column comprises a section steel lower section column 1 and a section steel upper section column 5 which are connected together, the section steel lower section column 1 is a cross column, the upper part of the section steel upper section column 5 is a hollow box column, the lower part of the section steel upper section column 5 is a hollow quadrangular frustum column, the bottom of the hollow quadrangular frustum column at the lower part of the section steel upper section column 5 is connected with the top of the section steel lower section column 1 into a whole, and the section steel lower section column and the top of the section steel lower section column 1 can be welded specifically;
rivets 2 are arranged on the outer walls of the section steel lower section column 1 and the section steel upper section column 5, vertical reinforcing steel bars 3 are bound on the outer sides of the section steel lower section column 1 and the section steel upper section column 5, concrete layers I4 are poured on the outer sides of the section steel lower section column 1 and the section steel upper section column 5, upper transverse through-length reinforcing steel bars 7 and lower transverse through-length reinforcing steel bars 8 are arranged on the inner upper side and the outer lower side of the section steel concrete beam 10 respectively (the upper transverse through-length reinforcing steel bars 7 and the lower transverse through-length reinforcing steel bars 8 are blanked according to the size in advance to ensure accuracy), and concrete layers II 9 are poured on the outer sides of the upper transverse through-length reinforcing steel bars 7 and the lower transverse through-length reinforcing steel bars 8;
the bottom of the lower section steel column 1 is connected with a foundation 13 through a connecting piece 12, the connecting piece 12 can be a connecting bolt, and the lower section steel column 1 and the foundation 13 can be fixedly connected through the bolt; the section steel concrete beam 10 is connected with the section steel upper section column 5 through a bracket rib plate 6 as a connecting node, and can be welded specifically.
The sectional area of the hollow box column at the upper part of the section steel upper section column 5 is larger than that of the section steel lower section column 1, and the structure with the large upper section and the small lower section saves the steel consumption to a certain extent.
Further, the bracket rib plate 6 is positioned on the section steel upper section column 5, is arranged according to the section size and elevation of the section steel concrete beam 10, and is reserved with enough length; go up horizontal logical long reinforcing bar 7 and horizontal logical long reinforcing bar 8 down and carry out double-sided welding with the upper and lower flange board of bracket gusset 6 respectively, the waist muscle 11 of shaped steel concrete beam 10 carries out double-sided welding with the web of bracket gusset 6.
Furthermore, the welding length of the upper transverse through-length steel bar 7 and an upper flange plate of the bracket rib plate 6 is 5L, wherein L is the diameter of the upper transverse through-length steel bar 7; the welding length of the lower transverse through long steel bar 8 and the lower flange plate of the bracket rib plate 6 is 5M, wherein M is the diameter of the lower transverse through long steel bar 8; the welding length of the web plate of the waist rib 11 and the bracket rib plate 6 is 5N, wherein N is the diameter of the waist rib 11, so that the welding length can meet the requirement.
Based on the same invention concept, the embodiment of the application also provides a construction method of the connection structure of the section steel reinforced concrete column and the concrete beam, which comprises the following steps:
s1, checking the position and the elevation size of the connecting piece 12 pre-embedded in the foundation 13, fixing the section steel lower section column 1 on the foundation 13 through the connecting piece 12, and rechecking the axis and the elevation size of the section steel lower section column 1;
s2, binding vertical steel bars 3 on the outer side of the section steel lower column 1, and binding the vertical steel bars 3 to the top position of the section steel lower column 1;
s3, hanging the section steel upper section column 5 to a proper position on the top of the section steel lower section column 1, and welding the section steel upper section column 5 and the section steel lower section column 1 into a whole;
s4, after confirming that the steps 1, 2 and 3 are finished, continuously binding the vertical steel bars 3 to the top of the section steel upper section column 5;
s5, after checking and accepting the vertical steel bars 3, performing die sealing and reinforcing on the section steel lower section column 1 and the section steel upper section column 5;
s6, pouring a concrete layer I4 outside the steel reinforced concrete column to the position 300mm from the bottom of the steel reinforced concrete beam 10, in the pouring process, respectively forming square holes (due to small space, a vibrating rod is conveniently and smoothly inserted) at four corners of a hollow quadrangular frustum at the lower part of the steel reinforced concrete upper section column 5, inserting the vibrating rod into the square holes for vibrating (the vibrating rod is required to be inserted into the bottom), arranging a specially-assigned person outside a template of the steel reinforced concrete column for knocking, and ensuring that the steel reinforced concrete is poured compactly and reaches strength;
s7, after the formwork support frame is erected, binding an upper transverse through long steel bar 7, a lower transverse through long steel bar 8 and a waist bar 11 of the steel reinforced concrete beam 10;
s8, welding the upper transverse through long steel bar 7, the lower transverse through long steel bar 8 and the waist bar 11 with the bracket rib plate 6 on the section steel upper section column 5 to ensure that the welding length meets the requirement;
s9, after the acceptance-type steel concrete beam 10 and the section steel upper section column 5 are welded to be correct, a concrete layer II 9 outside the section steel concrete beam 10 is poured;
and S10, after the pouring of the concrete layer I4 and the concrete layer II 9 is checked and accepted and the strength reaches 75% of the design strength, pouring high-throwing self-compacting concrete from the top to the bottom of the hollow box column top on the upper part of the section steel upper section column 5 to ensure that the interior of the section steel upper section column is compact.
Further, the section steel lower section column 1 and the section steel upper section column 5 are processed and manufactured in a factory in advance, and then are directly installed on site, so that the accuracy of on-site installation is ensured to meet the requirement.
Further, the size of bracket gusset 6 and the cross-sectional dimension looks adaptation of shaped steel concrete beam 10, go up horizontal through long reinforcing bar 7 and horizontal through long reinforcing bar 8 down carry out double-sided welding with the upper and lower flange board of bracket gusset 6 respectively, waist muscle 11 carries out double-sided welding with the web of bracket gusset 6.
Further, the high-throwing self-compacting concrete is micro-expansion shrinkage-free fine aggregate concrete.
The second embodiment is basically the same as the first embodiment in principle and technical scheme, and the difference is as follows: and step S2, after the vertical steel bars 3 are bound to the top position of the lower section column 1 of the section steel, pouring a concrete layer I4 to the joint of the lower section column 1 of the section steel and the upper section column 5 of the section steel, hoisting and welding the upper section column 5 of the section steel, continuously binding the vertical steel bars 3 to the top position of the upper section column 5 of the section steel, and finally continuously pouring a concrete layer I4 to the position 300mm away from the bottom of the section steel concrete beam 10.
Wherein, pour a section concrete layer I4 and be for making shaped steel hypomere post 1 reliable and stable, because 5 heavy in weight on the shaped steel section post, the butt joint process probably causes the axis skew.
By adopting the connecting structure and the construction method for the section steel reinforced concrete column and the concrete beam, the lower part of the whole section steel reinforced concrete column adopts the cross column, the upper part adopts the hollow box-shaped column, and the section steel reinforced concrete column is installed and fixed in sections, so that the lower section of the section steel reinforced concrete column can be fixed more stably and reliably, and the upper section of the section steel reinforced concrete column can be conveniently installed and connected; the rivets are arranged on the outer wall of the profile steel concrete column, so that the combination with concrete can be increased, the steel column and the concrete are ensured to be preferentially integrated, the overall anti-seismic performance of the profile steel concrete column is improved, and the overall rigidity and the strength of the profile steel concrete column are ensured to be reliable by binding vertical reinforcing bars outside the profile steel concrete column; the profile steel concrete beam is welded and connected with the profile steel upper section column through a special bracket rib plate serving as a connecting node, and the size of the bracket rib plate is matched with the size of the section of the profile steel concrete beam, so that the connection between the profile steel concrete beam and the column can be more stable; meanwhile, the steel concrete column adopts a structure with a large upper section and a small lower section, so that the steel consumption can be saved to a certain extent.
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 (10)
1. The utility model provides a shaped steel reinforced concrete column and concrete beam connection structure, sets up on basis (13), including linking shaped steel concrete column and shaped steel concrete beam (10) two parts together, its characterized in that: the section steel concrete column comprises a section steel lower section column (1) and a section steel upper section column (5) which are connected together, the section steel lower section column (1) is a cross column, the upper part of the section steel upper section column (5) is a hollow box column, the lower part of the section steel upper section column (5) is a hollow quadrangular frustum column, and the bottom of the hollow quadrangular frustum column at the lower part of the section steel upper section column (5) is connected with the top of the section steel lower section column (1) into a whole;
rivets (2) are arranged on the outer walls of the section steel lower section column (1) and the section steel upper section column (5), vertical reinforcing steel bars (3) are bound on the outer sides of the section steel lower section column (1) and the section steel upper section column (5), a concrete layer I (4) is poured on the outer sides of the section steel lower section column (1) and the section steel upper section column (5), an upper transverse through long reinforcing steel bar (7) and a lower transverse through long reinforcing steel bar (8) are respectively arranged on the inner upper side and the lower side of the section steel concrete beam (10), and a concrete layer II (9) is poured on the outer sides of the upper transverse through long reinforcing steel bar (7) and the lower transverse through long reinforcing steel bar (8);
the bottom of the section steel lower section column (1) is connected with a foundation (13) through a connecting piece (12), and the section steel concrete beam (10) is connected with the section steel upper section column (5) through a bracket rib plate (6) as a connecting node.
2. A shaped steel reinforced concrete column and concrete beam connection structure according to claim 1, characterized in that: the sectional area of the hollow box column at the upper part of the section steel upper section column (5) is larger than that of the section steel lower section column (1).
3. A shaped steel reinforced concrete column and concrete beam connection structure according to claim 1, characterized in that: bracket gusset (6) are located shaped steel upper segment post (5), its size and shaped steel concrete beam (10) cross-sectional dimension looks adaptation, go up horizontal logical long reinforcement (7) and horizontal logical long reinforcement (8) down and carry out two-sided connection with the upper and lower flange board of bracket gusset (6) respectively, waist muscle (11) of shaped steel concrete beam (10) carry out two-sided connection with the web of bracket gusset (6).
4. A shaped steel reinforced concrete column and concrete beam connection structure according to claim 3, characterized in that: the connecting length of the upper transverse through long steel bar (7) and an upper flange plate of the bracket rib plate (6) is 5L, wherein L is the diameter of the upper transverse through long steel bar (7); the connecting length of the lower transverse through long steel bar (8) and a lower flange plate of the bracket rib plate (6) is 5M, wherein M is the diameter of the lower transverse through long steel bar (8); the connecting length of the waist rib (11) and the web plate of the bracket rib plate (6) is 5N, wherein N is the diameter of the waist rib (11).
5. A shaped steel reinforced concrete column and concrete beam connection structure according to claim 1, characterized in that: the connecting mode of shaped steel hypomere post (1) and shaped steel upper segment post (5) specifically is the welding, connecting piece (12) are connecting bolt, the connecting mode of shaped steel hypomere post (1) and basis (13) specifically is bolt fixed connection, the connecting mode of bracket gusset (6) and shaped steel upper segment post (5) specifically is the welding.
6. A shaped steel reinforced concrete column and concrete beam connection structure according to claim 3 or 4, characterized in that: go up horizontal logical long reinforcing bar (7) and go up horizontal logical long reinforcing bar (8) down and carry out double-sided welding with the upper and lower flange board of bracket gusset (6) respectively, web of waist muscle (11) and bracket gusset (6) carries out double-sided welding.
7. A construction method of a connection structure of a section steel reinforced concrete column and a concrete beam is characterized by comprising the following steps:
s1, checking the position and the elevation size of the connecting piece (12) pre-embedded in the foundation (13), fixing the section steel lower section column (1) on the foundation (13) through the connecting piece (12), and rechecking the axis and the elevation size of the section steel lower section column (1);
s2, binding vertical steel bars (3) on the outer side of the lower section column (1) of the section steel, and binding the vertical steel bars (3) to the top position of the lower section column (1) of the section steel;
s3, hoisting the section steel upper section column (5) to a proper position on the top of the section steel lower section column (1), and welding the section steel upper section column (5) and the section steel lower section column (1) into a whole;
s4, after confirming that the steps 1, 2 and 3 are finished, continuously binding the vertical steel bars (3) to the top of the section steel upper section column (5);
s5, after checking and accepting the vertical steel bars (3) and binding the vertical steel bars without errors, performing die sealing and reinforcing on the lower section column (1) and the upper section column (5) of the section steel;
s6, pouring a concrete layer I (4) outside the section steel concrete column to the position 300mm from the bottom of the section steel concrete beam (10), in the pouring process, respectively forming square holes at four corners of a hollow quadrangular frustum pyramid at the lower part of the section steel upper section column (5), inserting vibrating rods from the square holes for vibrating, and arranging a specially-assigned person outside a template of the section steel concrete column for knocking;
s7, after the formwork support frame is erected, binding an upper transverse through long steel bar (7), a lower transverse through long steel bar (8) and a waist bar (11) of the steel reinforced concrete beam (10);
s8, welding the upper transverse through long steel bar (7), the lower transverse through long steel bar (8) and the waist bar (11) with a bracket rib plate (6) on the section steel upper section column (5) to ensure that the welding length meets the requirement;
s9, after the acceptance inspection type steel concrete beam (10) and the section steel upper section column (5) are welded without errors, a concrete layer II (9) outside the section steel concrete beam (10) is poured;
and S10, checking and accepting that the concrete layer I (4) and the concrete layer II (9) are poured, and pouring high-throwing self-compacting concrete from top to bottom from the top of the hollow box-type column on the upper part of the section steel upper section column (5) after the strength reaches 75% of the design strength.
8. The construction method of the connection structure of the section steel reinforced concrete column and the concrete beam as claimed in claim 7, wherein: the section steel lower section column (1) and the section steel upper section column (5) are processed and manufactured in a factory in advance and then are directly installed on site.
9. The construction method of the connection structure of the section steel reinforced concrete column and the concrete beam as claimed in claim 7, wherein: the size of bracket gusset (6) and shaped steel concrete beam (10) cross-sectional dimension looks adaptation, go up horizontal logical long reinforcing bar (7) and down horizontal logical long reinforcing bar (8) carry out two-sided welding with the upper and lower flange board of bracket gusset (6) respectively, waist muscle (11) carry out two-sided welding with the web of bracket gusset (6).
10. The construction method of the connection structure of the section steel reinforced concrete column and the concrete beam as claimed in claim 7, wherein: the high-throwing self-compacting concrete is micro-expansion shrinkage-free fine aggregate concrete.
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| CN210369562U (en) * | 2019-06-05 | 2020-04-21 | 浙江绿筑集成科技有限公司 | Steel column inserts basement variable cross section node |
| CN111962688A (en) * | 2020-08-31 | 2020-11-20 | 同济大学建筑设计研究院(集团)有限公司 | Rigid connection node between box steel column and steel reinforced concrete column |
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| JP2017115500A (en) * | 2015-12-25 | 2017-06-29 | 株式会社竹中工務店 | Column joint structure |
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| CN210369562U (en) * | 2019-06-05 | 2020-04-21 | 浙江绿筑集成科技有限公司 | Steel column inserts basement variable cross section node |
| CN111962688A (en) * | 2020-08-31 | 2020-11-20 | 同济大学建筑设计研究院(集团)有限公司 | Rigid connection node between box steel column and steel reinforced concrete column |
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