CN111321894A - Assembly type construction method for parking and charging intensive complex with multi-layer steel frame structure - Google Patents
Assembly type construction method for parking and charging intensive complex with multi-layer steel frame structure Download PDFInfo
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- CN111321894A CN111321894A CN202010127198.5A CN202010127198A CN111321894A CN 111321894 A CN111321894 A CN 111321894A CN 202010127198 A CN202010127198 A CN 202010127198A CN 111321894 A CN111321894 A CN 111321894A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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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
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
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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
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
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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
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H6/00—Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
- E04H6/08—Garages for many vehicles
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Abstract
The invention discloses a parking charging intensive complex assembly type construction method of a multilayer steel frame structure, which comprises the following steps of constructing a foundation and a foundation, deeply designing a steel frame supporting assembly type structure, processing in a factory, transporting to a construction site, hoisting an underground layer of solid-web rectangular steel column, and constructing an underground layer of common reinforced concrete floor and a concrete beam; hoisting a first layer of box type steel column; hoisting a first layer of steel beam; installing a first-layer steel bar truss floor bearing plate; and by analogy to eight layers in turn, the parking and charging intensive complex assembly type construction of the multilayer steel frame structure is completed. According to the parking charging intensive complex assembly type construction method for the multilayer steel frame structure, the reasonable air holes are formed in the box-type steel column, so that the problems of segregation of concrete in the box-type steel column, deformation of the steel column and the like are solved, measures are taken for the lane floor bearing plate, the thickness and the flatness of the lane slope concrete are effectively controlled, the quality of the concrete is guaranteed, and the method has wide popularization and application prospects.
Description
Technical Field
The invention relates to the technical field of building construction engineering, in particular to a parking charging intensive complex assembly type construction method of a multi-layer steel frame structure.
Background
In order to accelerate the development of the new energy automobile industry in China, governments in China and all parts have issued new energy automobile infrastructure construction and operation reward policies. According to electric vehicle network statistics, in the first half of 2017, provinces and cities such as Shanghai, Shenzhen, Hangzhou and Anhui have already clarified the subsidy standards of charging facilities, and almost all cities have set subsidy upper limit amounts. Wherein Shenzhen, dormitory city, Anhui province and the like subsidize according to the power of the charging pile, and Shanghai, Chengdu, Wenzhou and the like subsidize according to 30% or 20% of the actual investment amount. In 2016 + 2020, China continues to give financial compensation for the construction and operation of charging infrastructures.
In order to give full play to the leverage of power price, promote energy conservation and emission reduction of high-energy-consumption industries, eliminate the energy, guide power resource optimization configuration and promote optimization and upgrade of industrial structures and energy structures, the technology responds to the call of China to build a new-energy green charging pile building, so that the long-distance automobile adopts multiple functions of intensive charging, parking and the like. Therefore, the trend of building a parking charging intensive complex fabricated building with a multi-layer steel frame structure is present, and research on the technology becomes an urgent issue to be solved.
Disclosure of Invention
Based on the defects of the prior art, the technical problem to be solved by the invention is to provide the parking and charging intensive complex assembly type construction method for the multilayer steel frame structure, solve the problems of segregation of concrete in a box-type steel column, deformation of the steel column and the like, effectively control the thickness and the flatness of the concrete on the inclined surface of the lane, ensure the quality of the concrete and ensure the completion of the assembly of the complex.
In order to solve the technical problem, the invention provides a parking charging intensive comprehensive body assembly type construction method with a multilayer steel frame structure, which comprises the following steps:
firstly, hoisting an underground layer of solid-web rectangular steel column, and constructing an underground layer of common reinforced concrete floor and a concrete beam;
secondly, hoisting the first layer of box type steel column;
thirdly, hoisting the first layer of steel beam;
fourthly, installing a first layer of steel bar truss floor bearing plate (including a lane steel bar truss floor bearing plate);
and fifthly, analogizing to eight layers in sequence, and finishing the parking charging intensive complex assembly type construction of the multilayer steel frame structure.
Further, in the first step, the connection between the concrete beam of the basement and the solid-web rectangular steel column includes: arranging a steel bracket connecting plate on the solid-web type steel column, and respectively welding two ends of the concrete beam with the steel bracket connecting plate; the interlude of the end muscle of concrete beam, gluten, stria is with straight thread muffjoint, and the setting of staggering of the segmentation mouth of the end muscle of concrete beam, gluten, stria is not at same section.
Optionally, the box-type steel column is welded by adopting a Q345B steel plate, four partition plates are arranged in each layer of steel column, and the partition plates are respectively arranged at the position 150mm away from the bottom end of the column, the top end of the column and the connecting positions of the steel beams and the connecting brackets at the two ends of the box-type steel column;
a central hole is formed in the partition plate, and the diameter of the central hole is 250 mm; 4 or 6 first air holes are formed in the partition board around the central hole; the diameter of the first air hole is 25 mm; four corners in the partition board are provided with 4 second air holes with the size of 1/4, and the diameter of each second air hole is 125 mm.
Optionally, in the second step, the box-type steel column has four side surfaces, each side surface is provided with an upper and a lower third air hole with a diameter of 3cm, and the third air holes are respectively located at a position 500mm below the center point of each side edge at the top end of the column and 500mm above the center point of each side edge at the bottom end of the column;
the pouring height of the box type steel column is 11.3 meters and 10.8 meters, and the two sections of columns are both adopted; and (5) pouring once after the hoisting of the two layers of steel columns is finished, and pouring concrete in the steel columns by adopting a guiding-in method.
Furthermore, in the fourth step, the thickness of the steel bar truss floor bearing plate is 150mm, the width of the steel bar truss floor bearing plate is 1.2m, and the length of the steel bar truss floor bearing plate is determined according to different spans of the steel column; the bottom die of the steel bar truss floor bearing plate is galvanized steel plates with the thickness of 0.5mm, the galvanized steel plates are connected by fillet welds, and the distance between the steel bar truss nodes is 200 mm;
the diameters of the upper chord steel bar and the lower chord steel bar of the steel bar truss floor support plate are 10mm, and the diameter of the web member steel bar is 5 mm;
support vertical bars and support horizontal steel bars are established to the support at steel bar truss building carrier plate both ends, it is fixed with the blind rivet between steel bar truss building carrier plate and the girder steel, and the interval between the blind rivet is 200mm, adopt the plug welding to be connected between galvanized steel sheet and the girder steel, after steel bar truss building carrier plate installation is accomplished, install horizontal reinforcing bar again, concrete is pour at last.
Further, lane steel bar truss floor carrier plate adopts the fixed type of angle steel frame layering, adopts L75 × 5 mm's angle steel to support, interval between the angle steel is 1000 mm.
Optionally, in the third step, the steel beams include a main steel beam and a secondary steel beam, the main steel beam and the secondary steel beam are processed into H-shaped steel by adopting a Q345B steel plate, and after forming, an anti-rust primer and an intermediate paint are brushed in a factory, and a fireproof paint and a finish paint are brushed on site; the steel column and the main steel beam as well as the secondary steel beam and the main steel beam are connected by adopting 10.9 high-strength bolts.
Optionally, in the step one, the cross-sectional dimension of the solid-web rectangular steel column is 900 × 900, 68 solid-web rectangular steel columns are provided, C40 concrete is poured into the solid-web rectangular steel columns, outer-coated C40 concrete is provided around the solid-web rectangular steel columns, the thickness of the outer-coated concrete is 200mm, and longitudinal steel bars and transverse steel bars are provided in the outer-coated concrete.
Optionally, in the second step, the section sizes of the box-type steel columns are respectively 500 × 600mm, 600 × 800mm, 700 × 900 mm and 500 × 700mm, C35 concrete is poured into the box-type steel columns, the main spans of the box-type steel columns are 9.2 m, 12m and 15m, splayed-shaped section steel struts are arranged between the steel columns with the spans of 12m and 15m, and the section steel column struts are hoisted in three sections.
Furthermore, if the section steel column support is supported on a concrete slab, the section steel column support is connected with a steel plate which is × long, × wide and 1200mm, × 400mm, × mm and × 30mm thick, the steel plate is uniformly distributed with 12 open holes with the diameter of 12mm, 12 steel pipes which are 800mm long and are provided with right-angle hooks are reserved on the concrete slab, and after the section steel column support is connected with the concrete slab, the open holes and the section steel column support are connected by plug welding;
if the section steel column supports are supported on the steel beam and the steel column, the section steel column supports are respectively supported on the partition plates of the steel column and the steel beam, the thickness of the partition plate of the steel column is equal to the thickness of the supporting wall of the section steel column support, the thickness of the partition plate of the steel beam is equal to the thickness of the flange of the steel beam, and the thickness of the partition plate of the steel column is more than or equal to 16 mm; the supporting point that shaped steel column props and is connected with the baffle of steel column height apart from the girder steel face 500mm, and the supporting point that shaped steel column props and is connected with the girder steel is apart from the steel column 800 mm.
By the aid of the method, the problems of segregation of concrete in the box-type steel column, deformation of the steel column and the like are solved by arranging the reasonable air holes in the box-type steel column, measures are taken by the lane floor bearing plate, the thickness and the flatness of the lane slope concrete are effectively controlled, the quality of concrete is guaranteed, and the method has wide popularization and application prospects and at least has the following beneficial effects:
1. the box-type steel column is square, the square column is different from a cylinder, the lateral pressure of concrete grout at four corners of the square column is more obvious and is easy to deform, and in addition, the part of the steel column between the partition plate and the partition plate is easy to bulge, and the bulge is mainly caused by the lateral pressure of the concrete grout at the lower part, so that air holes at different positions are adopted, and a conduit construction pouring method is adopted to control concrete segregation, thereby ensuring the pouring quality of the concrete in the steel column.
2. The lane board adopts steel bar truss building carrier plate, how to control inclined plane, thickness and the roughness of lane board, takes the measure: the floor support plate adopts the angle steel frame layering fixed form, has effectively ensured the quality of pouring of lane board concrete.
3. Basement concrete beam and real abdomen formula rectangle steel column connection, through effectual connected mode, at first be concrete beam base muscle, gluten and the straight threaded connection between the waist muscle stagger, can not concentrate on same position, the reinforcing bar both ends can weld with steel column ox foot connecting plate in advance in addition, ensure the construction quality of basement concrete beam and real abdomen formula rectangle steel column.
4. Temporary support is not established in the construction of steel bar truss building carrier plate, belongs to a exempt from support system, has reduced the intensity of labour, and the die block is direct with galvanized steel sheet, does not demolish, and the roughness can be guaranteed after the floor construction is accomplished. The galvanized steel sheets at the lower part of the floor bearing plate are connected by adopting fillet welding seams, so that the galvanized steel sheets are prevented from being separated or moved.
5. If the support that the shaped steel column propped with girder steel, steel column connection, the support that the shaped steel column propped is respectively on the baffle of steel column and steel beam, the baffle thickness of steel column equals the support wall thickness that the shaped steel column propped, and the baffle thickness of girder steel equals girder steel edge of a wing thickness, and steel column baffle thickness is more than or equal to 16mm, and such benefit is that the stress point concentrates on same position, and the structure is more firm.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following detailed description is given in conjunction with the preferred embodiments, together with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
FIG. 1 is a flow chart of the assembled construction method of the parking charging intensive complex with a multi-layer steel frame structure;
FIG. 2 is a plan view of a solid web rectangular steel column of the present invention;
FIG. 3 is a drawing of the solid web rectangular steel columns of the present invention in connection with concrete beams;
FIG. 4 is a view of the location of the vent holes in the steel column spacer of the present invention;
FIG. 5 is a view showing the positions of the vent holes in the side of the steel column of the present invention;
FIG. 6 is a view of the layered fixing pattern of the angle steel frame of the steel bar truss floor deck of the present invention;
fig. 7 is a structural view of a steel bar truss floor deck of the present invention;
fig. 8 is a view showing the arrangement of the steel-bar truss floor deck of the present invention perpendicular to the beams;
fig. 9 is a view showing the arrangement of the steel-bar truss floor deck of the present invention parallel to the beams;
FIG. 10 is a pictorial view of the connection of the section steel stud of the present invention to a concrete slab;
FIG. 11 is a schematic structural view of a steel plate between a section steel stud and a concrete slab of the present invention;
FIG. 12 is a schematic view showing the connection of the section steel braces, steel beams and steel columns according to the present invention;
FIG. 13 is a structural view of a section steel stud of the present invention.
Detailed Description
Other aspects, features and advantages of the present invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the invention and, together with the description, further serve to explain the principles of the invention. In the referenced drawings, the same or similar components in different drawings are denoted by the same reference numerals.
Examples
The embodiment of the invention is a key project of Guangzhou public transportation group company Limited, namely a Guangzhou Yanling public transportation three-dimensional charging pile parking lot project;
engineering site: yanling road 171, 173 in Tianhe district of Guangzhou city, Guangdong province;
a construction unit: guangzhou Long haul group, Inc.;
designing a unit: zhongjiao fourth aviation engineering research design institute company, ltd;
supervision unit: guangzhou architecture engineering proctor, Inc.;
a construction unit: hengsheng construction engineering, Inc. of Guangzhou city.
The construction purpose is as follows: the stereo parking and charging integrated comprehensive building for the long-distance bus has the underground layer and the first layer as the vehicle maintaining area; 2-8 layers and the top surface are a public transport parking area and a charging area; the south of 1 ~ 8 layers of parking building sets up the back service and uses the room.
The total land area is 22670 square meters, the total constructable land area is 17174 square meters, and the total building area is 64787 square meters.
Scale: the height of the basement is 5.1 meters on one floor, eight floors on the ground, 6.2 meters on the first floor, 5.4 meters on two to eight floors, the total height of the building is 48.5 meters, and the amount of steel used in the engineering is 7600 tons.
Eight floor and the lane board all adopt steel bar truss building carrier plate support system on ground, and the building carrier plate width is 1.2 meters, and length is confirmed according to the different spans of steel column, and the packing uses 8 to 12 as a set of, and every group weight is not more than 500KG, and construction area 6800 square meters are laid on every layer, and floor thickness is 150mm (each layer lane board), 130mm (each layer floor) two kinds. And (5) marking plate identification numbers before leaving the factory, and unloading the plate identification numbers to an installation area on site according to the relevant identification numbers.
Specifically, as shown in fig. 1 to 13, the method for constructing a parking charging intensive complex assembly with a multi-layer steel frame structure according to the present invention includes the following steps:
firstly, hoisting an underground layer of solid-web rectangular steel column 10, and constructing an underground layer of common reinforced concrete floor and a concrete beam 20, wherein the section size of the solid-web rectangular steel column 10 is 900 × 900, 68 solid-web rectangular steel columns are arranged, C40 concrete is poured into the solid-web rectangular steel column 10, outer concrete 11 is arranged around the solid-web rectangular steel column 10, the thickness of the outer concrete 11 is 200mm, and longitudinal steel bars and transverse steel bars are arranged in the outer concrete 11.
The connection between the concrete beam 20 of the basement and the solid-web rectangular steel column 10 comprises: and a steel bracket connecting plate 12 is arranged on the solid-web type steel column 10, and two ends of the concrete beam 20 are respectively welded with the steel bracket connecting plate 12. The middle section of the bottom rib 22, the gluten 23 and the waist rib 24 of the concrete beam is connected by the straight thread sleeve 21, and the subsection openings of the bottom rib 22, the gluten 23 and the waist rib 24 of the concrete beam are staggered and arranged and are not on the same section.
Secondly, hoisting the first layer of box-type steel column, welding the box-type steel column by adopting Q345B steel plates, arranging four partition plates 30 in each layer of steel column, arranging the partition plates 30 at the position 150mm away from the bottom end of the column, the top end of the column and the connection position of the steel beam and a connecting bracket at the two ends of the box-type steel column respectively, arranging a central hole 31 in each partition plate 30, wherein the diameter of each central hole 31 is 250mm, arranging 4 or 6 first air holes 32 (4 or 6 are arranged around the central hole 31 in each partition plate according to the sectional dimension of the steel column, 4 are arranged at the position 500 × 600mm, 6 are arranged at the position 600 × 800mm, 700 × 900 and 500 × 700 mm), arranging 4 second air holes 33 with the size of 1/4 at the four corners in each partition plate, and enabling the diameter of each second air hole 33 to be 125 mm.
The box type steel column has four sides, each side is provided with an upper third air hole 34 and a lower third air hole 34, the diameters of the upper third air holes and the lower third air holes are 3cm, and the third air holes 34 are respectively located at the positions 500mm below the center point of each side edge of the top end of the column and 500mm above the center point of each side edge of the bottom end of the column. The pouring height of the box-type steel column is 11.3 m and 10.8 m (both are two-section columns), the two-layer steel column is poured at one time after the hoisting of the two-layer steel column is finished, concrete in the steel column is poured by adopting a guiding-in method, and the vibrating rod is poured from a central hole of a partition plate of the steel column.
Thirdly, hoisting the first layer of steel beam: the steel beam comprises a main steel beam and a secondary steel beam, the main steel beam and the secondary steel beam are processed into H-shaped steel by adopting a Q345B steel plate, and after the H-shaped steel is formed, an anti-rust primer and an intermediate paint are brushed in a factory, and an anti-fire paint and a finish paint are brushed on site. The steel column and the main steel beam as well as the secondary steel beam and the main steel beam are connected by adopting 10.9 high-strength bolts.
Fourthly, installing a first-layer steel bar truss floor bearing plate, wherein the thickness of the steel bar truss floor bearing plate is 150mm, the width of the steel bar truss floor bearing plate is 1.2m, 8-12 steel bars are packaged as one group, the weight of each group is not more than 500KG, the length is determined according to different spans of steel columns, the span is 7.6 and 7.8m in the embodiment, a bottom die 41 of the steel bar truss floor bearing plate is a galvanized steel plate with the thickness of 0.5mm, the galvanized steel plates are connected through angle welding joints, the distance between steel bar truss joints is 200mm, the diameter of an upper chord steel bar 42 and the diameter of a lower chord steel bar 43 of the steel bar truss floor bearing plate are 10mm, the diameter of a web member 44 of the steel bar truss floor bearing plate is 5mm, support vertical bars 45 and support horizontal steel bars 46 are arranged on supports at two ends of the steel bar truss floor bearing plate, the steel bar truss floor bearing plate and a steel beam are fixed through bolts 47, the distance between the bolts 47 mm, the galvanized steel bar truss floor bearing plate and the steel bar bearing plate are connected through plug welding, after the installation of the steel bar truss floor bearing plate is completed, the concrete is finally, the distance of a 75 × mm is 1000mm, and the angle steel bar truss floor bearing.
And fifthly, analogizing to eight layers in sequence, and finishing the parking charging intensive complex assembly type construction of the multilayer steel frame structure.
The section sizes of the box-type steel column 10 are respectively 500 × 600, 600 × 800, 700 × 900 and 500 × 700mm, C35 concrete is poured into the box-type steel column, the main spans of the box-type steel column are 9.2, 12 and 15m, 60 splayed steel column supports are arranged between steel columns with the spans of 12 and 15m, the steel column supports 60 are hoisted in three sections, if the steel column supports 60 are supported on a concrete slab, the steel column supports are connected with steel plates 61 with the lengths of ×, the widths of × and the thicknesses of 1200mm, × 400, 400mm and × 30mm, the steel plates 61 are uniformly distributed with 12 open holes 62 with the diameters of 12mm, 12 steel pipes 63 with the lengths of 800mm and hooks are reserved on the concrete slab, and after the steel column supports 60 are connected with the concrete slab, the open holes are connected with the steel column supports by plug welding;
if the section steel column supports 60 are supported on the steel beams and the steel columns, the section steel column supports are respectively supported on the partition plates of the steel columns and the steel beams, the thickness of the partition plate of the steel column is equal to the thickness of the supporting wall of the section steel column support, the thickness of the partition plate of the steel beam is equal to the thickness of the flange of the steel beam, and the thickness of the partition plate of the steel column is more than or equal to 16 mm; the supporting point height that shaped steel column props 60 and the baffle of steel column is connected is 500mm apart from the girder steel face, and the supporting point that shaped steel column props 60 and girder steel are connected is 800mm apart from the steel column.
While the foregoing is directed to the preferred embodiment of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (10)
1. The assembly type construction method of the parking charging intensive complex with the multi-layer steel frame structure is characterized by comprising the following steps of:
firstly, hoisting an underground layer of solid-web rectangular steel column, and constructing an underground layer of common reinforced concrete floor and a concrete beam;
secondly, hoisting the first layer of box type steel column;
thirdly, hoisting the first layer of steel beam;
fourthly, installing a first-layer steel bar truss floor bearing plate which comprises a lane steel bar truss floor bearing plate;
and fifthly, analogizing to eight layers in sequence, and finishing the parking charging intensive complex assembly type construction of the multilayer steel frame structure.
2. The assembly type construction method of parking, charging and intensive complex with multi-layer steel frame structure according to claim 1, characterized in that: in the first step, the connection between the concrete beam of the basement and the solid-web rectangular steel column comprises: arranging a steel bracket connecting plate on the solid-web type steel column, and respectively welding two ends of the concrete beam with the steel bracket connecting plate; the interlude of the end muscle of concrete beam, gluten, stria is with straight thread muffjoint, and the setting of staggering of the segmentation mouth of the end muscle of concrete beam, gluten, stria is not at same section.
3. The assembly type construction method of parking, charging and intensive complex with multi-layer steel frame structure according to claim 1, characterized in that: in the second step, the box-type steel columns are welded by adopting Q345B steel plates, four partition plates are arranged in each layer of steel column, and the partition plates are respectively arranged at the positions 150mm away from the bottom ends of the columns, the top ends of the columns and the two ends of the box-type steel columns at the connecting positions of the steel beams and the connecting brackets;
a central hole is formed in the partition plate, and the diameter of the central hole is 250 mm; 4 or 6 first air holes are formed in the partition board around the central hole; the diameter of the first air hole is 25 mm; four corners in the partition plate are provided with 4 second air holes with the size of 1/4, and the diameter of each second air hole is 125 mm.
4. The assembly type construction method of parking, charging and intensive complex with multi-layer steel frame structure according to claim 1, characterized in that: in the second step, the box-type steel column has four side surfaces, each side surface is provided with an upper air hole and a lower air hole, the diameter of each air hole is 3cm, and the third air holes are respectively positioned at the position 500mm below the center point of each side edge at the top end of the column and 500mm above the center point of each side edge at the bottom end of the column;
the pouring height of the box type steel column is 11.3 meters and 10.8 meters, and the two sections of columns are both adopted; and (5) pouring once after the hoisting of the two layers of steel columns is finished, and pouring concrete in the steel columns by adopting a guiding-in method.
5. The assembly type construction method of parking, charging and intensive complex with multi-layer steel frame structure according to claim 1, characterized in that: in the fourth step, the thickness of the steel bar truss floor bearing plate is 150mm, the width of the steel bar truss floor bearing plate is 1.2m, and the length of the steel bar truss floor bearing plate is determined according to different spans of the steel column; the bottom die of the steel bar truss floor support plate is galvanized steel plates with the thickness of 0.5mm, the galvanized steel plates are connected through fillet welding joints, and the node distance of the steel bar truss is 200 mm;
the diameters of the upper chord steel bar and the lower chord steel bar of the steel bar truss floor support plate are 10mm, and the diameter of the web member steel bar is 5 mm;
support vertical bar and support horizontal reinforcement are established to the support at steel bar truss building carrier plate both ends, it is fixed with the blind rivet between steel bar truss building carrier plate and the girder steel, and the interval between the blind rivet is 200mm, adopt the plug welding to be connected between galvanized steel sheet and the girder steel, after steel bar truss building carrier plate installation is accomplished, install horizontal reinforcing bar again, concrete is pour at last.
6. The assembly type construction method of the parking charging intensive complex with the multi-layer steel frame structure according to claim 5, wherein the floor bearing plate of the lane steel bar truss is in a layered fixing type by adopting an angle steel frame, is supported by L75 × 5mm angle steel, and the distance between the angle steel is 1000 mm.
7. The assembly type construction method of parking, charging and intensive complex with multi-layer steel frame structure according to claim 1, characterized in that: in the third step, the steel beams comprise a main steel beam and a secondary steel beam, the main steel beam and the secondary steel beam are processed into H-shaped steel by adopting a Q345B steel plate, and after the H-shaped steel is formed, an anti-rust primer and an intermediate paint are brushed in a factory, and a fireproof paint and a finish paint are brushed on site; the steel column and the main steel beam as well as the secondary steel beam and the main steel beam are connected by adopting 10.9 high-strength bolts.
8. The assembly type construction method of parking, charging and intensive complex of multi-layer steel frame structure according to claim 1, wherein in the first step, the cross-sectional dimension of the solid rectangular steel column is 900 × 900, 68 solid rectangular steel columns are provided, C40 concrete is poured into the solid rectangular steel columns, C40 concrete is wrapped around the solid rectangular steel columns, the thickness of the wrapped concrete is 200mm, and longitudinal steel bars and transverse steel bars are arranged in the wrapped concrete.
9. The assembly type construction method for parking, charging and intensive complex of multi-layer steel frame structure as claimed in claim 1, wherein in the second step, the section sizes of the box type steel columns are 500 × 600mm, 600 × 800mm, 700 × 900 mm and 500 × 700mm respectively, C35 concrete is poured into the box type steel columns, the main spans of the box type steel columns are 9.2 m, 12m and 15m, splayed steel column supports are arranged between the steel columns with the spans of 12m and 15m, and the steel column supports are hoisted in three sections.
10. The fabricated construction method of parking, charging and intensive complex of multi-layer steel frame structure according to claim 9, wherein the section steel column support, if supported on a concrete slab, is connected with a steel plate having a length of ×, a width of × and a thickness of 1200mm, × 400, × 30 and 30mm, the steel plate is uniformly provided with 12 openings having a diameter of 12mm, the concrete slab is reserved with 12 steel pipes having a length of 800mm and provided with right angle hooks, and after the section steel column support is connected with the concrete slab, the openings are connected with the section steel column support by plug welding;
if the section steel column supports are supported on the steel beam and the steel column, the section steel column supports are respectively supported on the partition plates of the steel column and the steel beam, the thickness of the partition plate of the steel column is equal to the thickness of the supporting wall of the section steel column support, the thickness of the partition plate of the steel beam is equal to the thickness of the flange of the steel beam, and the thickness of the partition plate of the steel column is more than or equal to 16 mm; the supporting point height that shaped steel column props and is connected with the baffle of steel column is 500mm apart from the girder steel face, and the supporting point that shaped steel column props and is connected with the girder steel is 800mm apart from the steel column.
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