Composite steel-concrete frame column and reinforced concrete frame column combined assembly structure system

Abstract

The invention discloses a prefabricated structural system of a steel-concrete composite frame column and a reinforced concrete frame column, comprising a plurality of vertically arranged steel-concrete composite frame columns and reinforced concrete frame columns, wherein the steel-concrete composite frame columns and the reinforced concrete frame columns are arranged in a rectangular array, and frame beams are horizontally arranged between two adjacent steel-concrete composite frame columns, two adjacent reinforced concrete frame columns, and the upper ends of adjacent steel-concrete composite frame columns and reinforced concrete frame columns; a secondary structural wall is filled between two adjacent steel-concrete composite frame columns below the frame beam; the invention has a scientific principle, a novel design, and a simple structure, and the steel-concrete composite prefabrication plus cast-in-place internal concrete columns have high structural strength, good earthquake resistance, shortened construction period, reduced construction cost, and good fire resistance.

Description

Technical Field

[0001] The present invention belongs to the technical field of prefabricated building system construction, and specifically relates to a prefabricated structural system composed of steel-concrete composite frame columns and reinforced concrete frame columns. Background Art

[0002] In recent years, due to the increasing requirements of energy-saving and emission-reduction policies, the sharp increase in labor prices, and the widespread promotion of advanced technologies in prefabricated structures, the application of prefabricated structures has begun to get rid of the trough and show a rapid upward trend. Prefabricated buildings are currently mainly suitable for non-seismic design and various types of civil buildings of Class B and below in seismic design areas with seismic fortification intensity of 6-8 degrees. In the process of promoting and applying prefabricated building systems, frame columns are generally still cast on site to form steel-reinforced concrete columns. This construction method not only requires the employment of a large number of workers, but also has high costs and long construction periods. The on-site management is relatively chaotic, and the prefabrication rate, assembly rate and industrialization level are all low. There is still a big gap from the country's advocacy of vigorously developing green buildings and giving priority to industrialized construction methods. In addition, the existing cast frame column and frame beam system has the disadvantages of poor fire resistance and poor seismic effect. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides a composite steel-concrete frame column and reinforced concrete frame column combined assembled structural system which is prefabricated in batches in a factory, has low cost, short construction period and good fire resistance.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: a steel-concrete composite frame column and a reinforced concrete frame column combined assembled structural system, comprising a plurality of steel-concrete composite frame columns and reinforced concrete frame columns arranged vertically, the steel-concrete composite frame columns and the reinforced concrete frame columns are arranged in a rectangular array, frame beams are horizontally arranged between two adjacent steel-concrete composite frame columns, two adjacent reinforced concrete frame columns, and the upper ends of adjacent steel-concrete composite frame columns and reinforced concrete frame columns; a secondary structural wall is filled between two adjacent steel-concrete composite frame columns below the frame beams;

[0005] The steel-concrete composite frame column includes a steel cylinder formed by bending steel plates, the center line of the steel cylinder is set vertically, and several layers of steel skeletons are arranged in the height direction of the steel cylinder, each layer of steel skeleton includes several staggered and cross-arranged steel sections, steel bars or bolt rods, both ends of each steel section, steel bar or bolt rod pass through the steel cylinder, wherein the bolt rod and the steel cylinder are connected by a threaded buckle, and both ends of all the steel sections, steel bars or bolt rods are connected with steel bars or wire mesh surrounding the steel cylinder, and a concrete layer with steel bars or wire mesh embedded therein is cast on the outside of the steel cylinder, and the cross-sectional outer contour shape of the concrete layer and the cross-sectional shape of the steel bars or wire mesh are similar to the cross-sectional shape of the steel cylinder.

[0006] Calcium silicate boards are provided on the outer wall surfaces of the concrete layer and the frame beams.

[0007] The thickness of the concrete layer is 10-80 mm.

[0008] The steel plate bent to form the steel cylinder body is a patterned steel plate, and the pattern of the patterned steel plate is arranged outwards.

[0009] The cross-sectional shape of the steel cylinder is circular.

[0010] The cross-sectional shape of the steel cylinder is square.

[0011] The cross-sectional shape of the steel cylinder is a regular N-gon, where N is a natural number greater than or equal to 5.

[0012] Secondary structural walls include aerated block walls or partition walls.

[0013] Concrete columns are cast inside the steel cylinder, and the steel skeleton is cast into the concrete columns. An embedded opening corresponding to the adjacent steel-concrete composite frame column is opened at the upper end of the steel cylinder, and a first embedded connecting frame with an inner end embedded in the concrete column is arranged in the embedded opening. The outer end of the first embedded connecting frame protrudes from the concrete layer, and a second embedded connecting frame is embedded in the upper part of the reinforced concrete frame column. The heights of the first embedded connecting frame and the second embedded connecting frame are equal, and the bottoms of both ends of the frame beam are supported on two adjacent first embedded connecting frames, two adjacent second embedded connecting frames, or adjacent first embedded connecting frames and second embedded connecting frames. The two ends of the frame beam are connected to the first embedded connecting frame and the second embedded connecting frame through bolt structures corresponding to the long holes.

[0014] By adopting the above technical scheme, the present invention is prefabricated in a factory, and then transported to a construction site for installation. Concrete is poured on site inside the steel cylinder to form a concrete column. The steel skeleton is poured into the concrete column, so that the steel skeleton, the concrete column, the first embedded connecting frame and the concrete layer outside the steel cylinder are firmly connected as one. The steel cylinder is directly used as a template for pouring the concrete column, thus eliminating the construction process of on-site formwork and shortening the construction period. After the pouring is completed, the calcium silicate board is buckled and installed on the outer wall of the concrete layer to avoid damage during transportation or pouring of the concrete column after installation in the factory.

[0015] The reinforced concrete frame column is a steel frame and a second embedded connecting frame set on site. The concrete is poured after supporting the formwork. After solidification, a reinforced concrete frame column is formed. Its structure is different from that of the steel-concrete composite frame column.

[0016] Calcium silicate board (English: calcium silicate) as a new green environmental protection building material, in addition to the functions of traditional gypsum board, has the advantages of superior fire resistance and moisture resistance, long service life, and is widely used in industrial and commercial engineering buildings, ceilings and partitions, home decoration, furniture lining, billboard lining, warehouse shed, network floor and tunnel and other indoor engineering wall panels. Therefore, calcium silicate board has good flame retardant and fireproof properties.

[0017] The patterns of the patterned steel plate face outwards, which can enhance the connection strength between the steel cylinder and the concrete layer.

[0018] Both ends of the steel section, steel bar or bolt rod extend out of the steel cylinder to provide support for the steel bar or wire mesh, and the steel bar or wire mesh is poured into the concrete layer to ensure that no cracks will appear in the concrete layer.

[0019] According to the design drawings, the cross-sectional shape of the steel cylinder can be circular, square, rectangular or a regular N-gon (N is a natural number greater than or equal to 5), that is, the cross-sectional shape of the frame column is also one of the above shapes to suit the needs of different occasions.

[0020] The bottom ends of the frame beams are supported on the embedded connecting frames and connected to the embedded connecting frames through corresponding bolt structures through long holes. This connection has a certain amount of mobility in the horizontal and vertical directions, and can play a good buffering and shock-absorbing effect during earthquakes.

[0021] In summary, the present invention has a scientific principle, novel design, simple structure, steel-concrete composite prefabrication and cast-in-place internal concrete columns, high structural strength, good earthquake resistance, shortened construction period, reduced construction costs and good fire resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a plan layout diagram of the present invention;

[0023] Figure 2 It is a cross-sectional schematic diagram of a first embodiment of a steel-concrete composite frame column in the present invention;

[0024] Figure 3 It is a cross-sectional schematic diagram of the second embodiment of the steel-concrete composite frame column of the present invention;

[0025] Figure 4 It is a schematic cross-sectional view of Embodiment 3 of the steel-concrete composite frame column in the present invention. DETAILED DESCRIPTION

[0026] Embodiment 1: Figure 1 and 2As shown, the steel-concrete composite frame column and reinforced concrete frame column combined assembled structural system of the present invention comprises a plurality of steel-concrete composite frame columns 6 and reinforced concrete frame columns 7 arranged vertically, the steel-concrete composite frame columns 6 and reinforced concrete frame columns 7 are arranged in a rectangular array, frame beams 8 are horizontally arranged between two adjacent steel-concrete composite frame columns 6, two adjacent reinforced concrete frame columns 7, and the upper ends of adjacent steel-concrete composite frame columns 6 and reinforced concrete frame columns 7; and a secondary structural wall is filled between two adjacent steel-concrete composite frame columns 6 below the frame beams 8;

[0027] The steel-concrete composite frame column 6 includes a steel cylinder 1 formed by bending steel plates, the center line of the steel cylinder 1 is set vertically, and several layers of steel skeletons 2 are arranged in the height direction of the steel cylinder 1. Each layer of steel skeleton 2 includes several staggered and cross-arranged steel sections, steel bars or bolt rods. Both ends of each steel section, steel bar or bolt rod pass through the steel cylinder 1, wherein the bolt rod is connected to the steel cylinder 1 by a threaded connection, and both ends of all the steel sections, steel bars or bolt rods are connected with steel bars or wire mesh 3 surrounding the steel cylinder 1. A concrete layer 4 with the steel bars or wire mesh 3 embedded therein is cast on the outside of the steel cylinder 1, and the cross-sectional outer contour shape of the concrete layer 4 and the cross-sectional shape of the steel bars or wire mesh 3 are similar to the cross-sectional shape of the steel cylinder 1.

[0028] Calcium silicate boards 5 are provided on the outer wall surfaces of the concrete layer 4 and the frame beam 8 .

[0029] The thickness of the concrete layer 4 is 10-80 mm, preferably 80 mm.

[0030] The steel plate bent to form the steel cylinder 1 is a patterned steel plate, and the pattern of the patterned steel plate is arranged outward.

[0031] The cross-sectional shape of the steel cylinder 1 is a square.

[0032] Secondary structural walls include aerated block walls or partition walls.

[0033] Concrete columns are cast inside the steel cylinder, and the steel skeleton is cast into the concrete columns. The upper end of the steel cylinder is provided with an embedded opening corresponding to the adjacent steel-concrete composite frame column 6. The embedded opening is provided with a first embedded connection frame whose inner end is embedded in the concrete column. The outer end of the first embedded connection frame protrudes from the concrete layer. A second embedded connection frame is embedded in the upper part of the reinforced concrete frame column 7. The heights of the first embedded connection frame and the second embedded connection frame are equal. The bottoms of both ends of the frame beam 8 are supported on two adjacent first embedded connection frames, two adjacent second embedded connection frames, or adjacent first embedded connection frames and second embedded connection frames. Both ends of the frame beam 8 are connected to the first embedded connection frame and the second embedded connection frame through bolt structures corresponding to the long holes. The concrete column, the first embedded connection frame, the second embedded connection frame, and the bolt structures corresponding to the long holes are not shown in the figure.

[0034] The present invention is prefabricated in a factory and then transported to a construction site for installation. Concrete is poured on site inside the steel cylinder 1 to form a concrete column. The steel skeleton 2 is poured into the concrete column so that the steel skeleton 2, the concrete column, the first embedded connection frame and the concrete layer 4 outside the steel cylinder 1 are firmly connected as one. The steel cylinder 1 is directly used as a template for pouring the concrete column, thus eliminating the construction process of on-site formwork and shortening the construction period. After pouring is completed, the calcium silicate board 5 is buckled and installed on the outer wall of the concrete layer 4 to avoid damage during transportation or pouring of the concrete column after installation in the factory.

[0035] The reinforced concrete frame column 7 is a reinforced skeleton and a second embedded connection frame set on site. After the formwork is supported, concrete is poured. After solidification, the reinforced concrete frame column 7 is formed. Its structure is different from that of the steel-concrete composite frame column 6.

[0036] Embodiment 2: Figure 3 As shown, the difference between this embodiment and the first embodiment is that the cross-sectional shape of the steel cylinder 1 is circular.

[0037] Embodiment 3: Figure 4 As shown, the difference between this embodiment and the first embodiment is that the cross-sectional shape of the steel cylinder 1 is a regular N-gon, where N is equal to 6.

[0038] This embodiment does not impose any formal limitation on the shape, material, structure, etc. of the present invention. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. The assembled structural system of steel-concrete composite frame columns and reinforced concrete frame columns is characterized by: It comprises a plurality of steel-concrete composite frame columns and reinforced concrete frame columns arranged vertically, the steel-concrete composite frame columns and the reinforced concrete frame columns are arranged in a rectangular array, frame beams are horizontally arranged between two adjacent steel-concrete composite frame columns, two adjacent reinforced concrete frame columns, and the upper ends of adjacent steel-concrete composite frame columns and reinforced concrete frame columns; a secondary structure wall is filled between two adjacent steel-concrete composite frame columns below the frame beam; The steel-concrete composite frame column includes a steel cylinder formed by bending steel plates, the center line of the steel cylinder is vertically arranged, and a plurality of layers of steel skeletons are arranged in the height direction of the steel cylinder, each layer of the steel skeleton includes a plurality of staggered and cross-arranged steel sections, steel bars or bolt rods, both ends of each steel section, steel bar or bolt rod pass through the steel cylinder, wherein the bolt rod is connected to the steel cylinder by a threaded connection, both ends of all the steel sections, steel bars or bolt rods are connected to steel bars or steel wire mesh surrounding the steel cylinder, a concrete layer with steel bars or steel wire mesh embedded therein is cast on the outside of the steel cylinder, and the cross-sectional outer contour shape of the concrete layer, the cross-sectional shape of the steel bars or steel wire mesh and the cross-sectional shape of the steel cylinder are similar; Calcium silicate boards are provided on the outer wall surfaces of the concrete layer and the frame beams; Concrete columns are cast inside the steel cylinder, and the steel skeleton is cast into the concrete columns. An embedded opening corresponding to the adjacent steel-concrete composite frame column is opened at the upper end of the steel cylinder, and a first embedded connecting frame whose inner end is embedded in the concrete column is arranged in the embedded opening, and the outer end of the first embedded connecting frame protrudes from the concrete layer. A second embedded connecting frame is embedded in the upper part of the reinforced concrete frame column, and the heights of the first embedded connecting frame and the second embedded connecting frame are equal. The bottoms of both ends of the frame beam are supported on two adjacent first embedded connecting frames, two adjacent second embedded connecting frames, or adjacent first embedded connecting frames and second embedded connecting frames, and the two ends of the frame beam are connected to the first embedded connecting frame and the second embedded connecting frame through bolt structures corresponding to the long holes; Secondary structural walls include aerated block walls or partition walls.

2. The assembled structural system of steel concrete composite frame columns and reinforced concrete frame columns according to claim 1 is characterized in that: The thickness of the concrete layer is 10-80 mm.

3. The assembled structural system of steel concrete composite frame columns and reinforced concrete frame columns according to claim 1 is characterized in that: The steel plate bent to form the steel cylinder body is a patterned steel plate, and the pattern of the patterned steel plate is arranged outwards.

4. The assembled structural system of steel concrete composite frame columns and reinforced concrete frame columns according to any one of claims 1 to 3, characterized in that: The cross-sectional shape of the steel cylinder is circular.

5. The assembled structural system of steel concrete composite frame columns and reinforced concrete frame columns according to any one of claims 1 to 3, characterized in that: The cross-sectional shape of the steel cylinder is square.

6. The assembled structural system of steel concrete composite frame columns and reinforced concrete frame columns according to any one of claims 1 to 3, characterized in that: The cross-sectional shape of the steel cylinder is a regular N-gon, where N is a natural number greater than or equal to 5.

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