A staggered double-row different-column-supported diamond-shaped compression rod parallel steel roof and construction method thereof

Abstract

A staggered double-row special column supported diamond-shaped compression rod parallel steel roof and its construction method, the bottom of which stands on the main structure, the main structure includes various frame columns and frame beams, and the steel roof includes V-shaped columns, tree-shaped columns, diamond-shaped compression rod prestressed string structure and cantilever curtain wall structure around the exterior. The present invention utilizes the characteristics of unequal height frame column structures on the front and rear sides, and the rear frame column as a supporting support has a larger reverse bending moment than the front frame column, to design the special-shaped support column of the string-beam structure, the front low end is designed to be located in the same vertical plane to achieve the front support of the string-beam structure, the rear high end is designed to be a three-dimensional tree-shaped special column to achieve the rear support of the string-beam structure, and the characteristics of unequal reverse bending moments of the supports on both sides are balanced. At the same time, the main beam of the roof is formed by designing the traditional symmetrical string-beam structure into an asymmetrical string-beam diamond-shaped compression rod structure between the special columns on both sides, so as to meet the requirements of the super-dangerous large project of the roof steel structure.

Description

Technical Field

[0001] The invention belongs to the field of steel structure roofs, in particular to a staggered double-row different-column supported diamond-shaped compression rod parallel steel roof and a construction method thereof. Background Art

[0002] Steel structure installation projects with a span of 36m or more, or grid and cable membrane structure installation projects with a span of 60m or more are super-dangerous steel structure projects. Traditional steel roof structures are supported by a single form of frame columns, and the grid structure between the columns is a front-to-back symmetrical string structure. The string structure is a flexible structural form that can be expanded in various forms and includes a variety of independent structural forms. Its performance in bending performance, material selection experiments, and structural optimization is very outstanding, but its performance in structural modeling and space is relatively imperfect. This structure cannot be directly used in super-dangerous steel structure projects, especially when the main structure is a steel-concrete structure with unequal heights on the front and back sides. The existing steel roof overall structure force design and steel structure construction are both very difficult. Therefore, there is an urgent need for a steel roof structure that can improve the support columns and string structure while meeting the construction requirements of super-dangerous steel structure projects. Summary of the invention

[0003] The purpose of the present invention is to provide a staggered double-row diamond-shaped compression rod parallel steel roof and a construction method thereof, in order to solve the technical problem that the existing supporting columns and symmetrical beam-string structures cannot be directly spanned for use in super-dangerous large steel structure projects; and to solve the technical problem that when the main structure is a steel-concrete structure with unequal heights on the front and rear sides, there are great difficulties in the overall structural force design of the steel roof and the construction of the steel structure.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] A staggered double-row diamond-shaped compression rod parallel steel roof, the bottom of which stands on a main structure, the main structure is a steel-concrete structure, including frame columns, namely front side columns, rear side columns, rear middle columns and side columns on the left and right sides, wherein the front side columns and rear side columns are respectively located on the corresponding front and rear longitudinal edge column axes of the main structure, the side columns are located on the corresponding left and right transverse edge column axes of the main structure, and the rear middle column is located on the rear longitudinal adjacent column axis adjacent to the rear side columns. The column tops of the main structure are staggered, and the elevations are from low to high, namely the front side columns, the rear middle columns and the rear side columns.

[0006] The main structure also includes frame beams, including column top frame beams and column body frame beams, wherein the column top frame beams are connected between the column tops of each frame column, and the column body frame beams are connected between the column bodies of each frame column.

[0007] The steel roof includes V-shaped columns, tree-shaped columns, diamond-shaped compression rod prestressed string structure and cantilevered curtain wall structure around the perimeter.

[0008] The V-shaped column comprises a group of V-shaped column units which are continuously arranged and connected as one on the front longitudinal edge column axis, the column foot nodes of the V-shaped column units are hinged to the column tops of the front row side columns one by one, each V-shaped column unit comprises two left-right symmetrical oblique column rods, the bottom ends of the two oblique column rods are fixedly connected to the same column foot node, the top ends of the oblique column rods of two adjacent V-shaped column units are fixedly connected to the column top node of the same oblique column rod, and the column top node is the V-shaped column connection node,

[0009] The tree-shaped column comprises a group of tree-shaped column units which are continuously arranged and connected as one on the rear side adjacent to the column axis in the longitudinal direction. The column foot nodes of the tree-shaped column units are hinged to the column tops of the rear middle columns one by one. The tree-shaped column is an inverted quadrangular pyramid as a whole, and the top surface forms a rectangular frame. The connection nodes at the two front corners of the rectangular frame are the front nodes of the tree-shaped column.

[0010] The V-shaped column connection nodes and the tree-shaped column connection front nodes correspond to each other front to back and are located on the same horizontal straight line.

[0011] The diamond-shaped compression rod prestressed string structure comprises a group of diamond-shaped compression rod units which are laterally fixedly connected between the V-shaped column connection node and the tree-shaped column front connection node.

[0012] The front connection node of the rhombus pressure rod unit is hinged with the V-shaped column connection node, and the rear connection node of the rhombus pressure rod unit pressure rod is fixedly connected with the front connection node of the tree-shaped column.

[0013] The diamond pressure rod unit also includes a cable support rod and a cable. The cable is arranged in a one-to-one correspondence with the diamond pressure rod. The two ends of the cable are respectively connected to the bottom of the front end connection node and the bottom of the rear end connection node of the unit, and the middle part of the cable is supported on the bottom end of the cable support rod.

[0014] The two ends of the column frame beam on the front side of the main structure are fixedly connected to the column bodies of adjacent inclined column rods respectively. The V-shaped column also includes a column connecting beam, which is also located between the rod sides of the inclined column rod and is hinged to the column bodies of adjacent inclined column rods at both ends. The column connecting beam is located directly above the column frame beam.

[0015] Each tree-shaped column unit includes a cross rib plate, a tree main beam, a tree connecting beam, a tree radial brace and a tree cross brace.

[0016] The two tree main beams are horizontally parallel and located in the same plane, the two tree connecting beams are vertically perpendicular to the tree main beams and located in the plane, and the two ends of the tree connecting beams are respectively fixedly connected to the ends of the tree main beams on the left and right sides to form a rectangular frame.

[0017] There are four tree radial struts in total, the bottom ends of which are fixedly connected to the same column foot node, cross ribs are fixedly connected between the tree radial struts, and the top ends are radially fixedly connected to the bottoms of the four corner connection positions of the rectangular frame to form the sides of an inverted quadrangular pyramid.

[0018] The tree cross support rod and the rectangular frame are located in the same plane, and the four ends of the tree cross support rod are respectively fixedly connected to the four corner connection position nodes of the rectangular frame.

[0019] Two adjacent tree-shaped column units share a tree main beam, and the tree connecting beam is divided into a front tree connecting beam and a rear tree connecting beam, wherein the rear tree connecting beam is located on the rear longitudinal edge column axis, and the middle part of the bottom of the rear tree connecting beam is fixedly connected to the top of the rear row of side columns, and the rear tree connecting beam forms the column top frame beam on the rear side of the main structure.

[0020] The diamond pressure rod unit includes a diamond pressure rod and a diamond connecting rod. The diamond pressure rod is composed of four pressure rods. The two ends of the front column top frame beam of the main structure are respectively fixedly connected to the front end connection nodes of the adjacent pressure rods. The front end connection node of the pressure rod is hinged to the V-shaped column connection node, and the rear end connection node of the pressure rod is fixedly connected to the front node of the tree-shaped column connection. The diamond connecting rod is longitudinally arranged, and its two ends are hinged between the middle connection nodes of the pressure rod, with the diamond connecting rod as the dividing line. The front two rods of the diamond pressure rod are located in the same front plane, and the rear two rods of the diamond pressure rod are located in the same rear plane.

[0021] The cable strut is arranged directly below the corresponding diamond connecting rod. The cable strut is in a V-shape of equal length. The two top ends of the cable strut are respectively hinged to the middle connecting nodes of the pressure rods on both sides. The diamond connecting rod and the cable strut are in an isosceles triangle. The two ends of the cable are respectively connected to the bottom of the front connecting node and the bottom of the rear connecting node of the pressure rod.

[0022] The column foot node of the V-shaped column unit is a cast steel column foot, which is hinged to the column top of the front row side column through a self-stabilizing basin-type ball joint support, and the front row side column is a steel concrete column or a reinforced concrete column.

[0023] The column foot node of the tree-shaped column unit is a cast steel column foot, which is hinged to the column top of the rear middle column through a self-stabilizing basin-type ball joint support, and the rear middle column is a steel-concrete column or a reinforced concrete column.

[0024] The self-stabilizing basin-type ball joint support is fixedly connected to the top surface of the embedded plate embedded in the center of the column top plane, and the top surface of the embedded plate is flush with the column top plane. The self-stabilizing basin-type ball joint support includes a support body and a surrounding self-stabilizing fixed group plate. The surrounding self-stabilizing fixed group plate is a total of six pieces, which are evenly distributed on the surrounding surfaces of the support body. The surrounding self-stabilizing fixed group plate is a rectangular group plate, whose top surface is flush with the top surface of the support body, whose bottom surface is fixedly connected to the embedded plate, and whose inner surface is fixedly connected to the outer surface of the support body.

[0025] A staggered double-row different-column-supported diamond-shaped compression rod parallel steel roof, the construction steps are as follows: the cantilever curtain wall structure includes a front cantilever structure, a rear cantilever structure, and left and right cantilever structures, wherein the front cantilever structure is a double-layer frame, including a front low frame and a front high frame, the rear cantilever structure is a double-layer frame, including a rear low frame and a rear high frame, and the left and right cantilever structures are double-layer frames, including two side low frames and two side high frames,

[0026] The lower halves of the rear side columns and the side side columns are steel-concrete columns or reinforced concrete columns, and the upper halves of the two are steel columns within the height range of the cantilever curtain wall structure.

[0027] Step 1: construct the main structure;

[0028] Step 2: construct the column foot node of the V-shaped column unit on the front side column;

[0029] Step 3: construct the steel columns of the rear side columns within the height range of the rear low frame and the rear low frame;

[0030] Step 4: construct the steel columns within the height range of the low frames on both sides and the low frames on both sides;

[0031] Step 5, constructing V-shaped column units at the column foot nodes of the V-shaped column units and connecting them longitudinally into one;

[0032] Step 6: construct the steel columns of the rear side columns within the height range of the rear elevated frame;

[0033] Step 7: construct the column foot nodes of the tree-shaped column units on the rear middle columns;

[0034] Step 8: construct tree-shaped columns on the rear middle columns and rear side columns;

[0035] Step nine, constructing a diamond strut of the diamond strut unit between the V-shaped column unit and the tree-shaped column unit;

[0036] Step 10, construct the steel columns of the side columns within the height range of the elevated structures on both sides;

[0037] Step 11: construct the front low frame, the front elevated frame, the rear elevated frame and the elevated frames on both sides;

[0038] Step 12: construct diamond-shaped tie rods and cable stays;

[0039] Step 13: construct the cables.

[0040] Compared with the prior art, the present invention has the following characteristics and beneficial effects:

[0041] The present invention utilizes the structure of frame columns with unequal heights on the front and rear sides, and the characteristic that the reverse bending moment of the rear frame column as a supporting bearing is larger than that of the front frame column, to design special-shaped support columns for the beam string structure. The front low end is designed with a V-shaped special column located in the same vertical plane to support the front side of the beam string structure, and the rear high end is designed with a three-dimensional tree-shaped special column to support the rear side of the beam string structure, balancing the characteristic of unequal reverse bending moments of the bearings on both sides. At the same time, between the special columns on both sides, the traditional symmetrical beam string structure is designed into an asymmetrical beam string diamond strut structure to form the main beam of the roof, thereby meeting the requirements of the super-dangerous large project of the roof steel structure.

[0042] For special structural forms such as large-span steel structure lattice shell support frames, different forms of support columns can be set to meet the structural force requirements according to different loads and force characteristics. In order to increase the overall force-bearing area of ​​the front bottom frame column, the present invention adopts a V-shaped column as a support column. After the V-shaped column is set, the inclination of the inclined column rod will cause an asymmetric load, so that the column foot of the V-shaped column is subjected to greater force, so the column foot position is reinforced. The V-shaped columns are connected as a whole to form a surface, forming a force wave that cooperates with each other to increase the vertical bearing capacity and horizontal lateral resistance of the overall frame column on this side.

[0043] The present invention utilizes the structure of frame columns with unequal heights on the front and rear sides. The rear frame columns as supporting seats have a larger reverse bending moment than the front frame columns. Two rows of columns are designed on the rear side. The top structure of the middle column is designed as a three-dimensional tree-shaped column. The entire structure of the tree-shaped column is subjected to relatively uniform force. The branch structure of the tree-shaped column can increase its force-bearing area, so that it can bear a larger load, increase the vertical bearing capacity and horizontal lateral resistance of the overall frame column on this side, realize the rear support of the tension-beam structure, balance the larger reverse bending moment of the rear support, and meet the requirements of super-dangerous large projects of roof steel structures.

[0044] The steel structure of the swimming pool of the present invention adopts a design scheme that a rhombus-shaped compression rod cooperates with a strut and a prestressed cable to form a string structure unit. The string structure is very flexible in form and can realize a variety of spatial forms to meet various different architectural requirements. At the same time, the cross-section of the rhombus-shaped compression rod is box-shaped, with a large internal space, which can carry a larger load.

[0045] The present invention designs the pressure rod into a diamond shape. The diamond-shaped pressure rod is a special pressure member with good bearing capacity. The diamond-shaped pressure rod has a larger internal space and can bear a larger load. The four edges of the diamond can bear loads. Under the same size, the diamond-shaped pressure rod can withstand higher pressure and torque, thereby effectively increasing its bearing capacity.

[0046] The diamond shape can form a larger resistance surface under the action of wind, improving the stability and wind resistance of the structure. This is because the four corners of the diamond pressure bar can become force arms to resist wind force, thus forming a larger resistance surface. The diamond pressure bar can effectively reduce the force of the structure under the action of wind, improving its stability and wind resistance.

[0047] The invention has clear force transmission, and the connection positions of various structures are designed to be hinged as much as possible. The force relationship of the overall structure of the roof is met through the ingenious design of the hinge points, thereby achieving simplification in the subsequent construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0049] Figure 1 It is a schematic diagram of the overall front three-dimensional structure of the present invention.

[0050] Figure 2 It is a schematic diagram of the overall rear three-dimensional structure of the present invention.

[0051] Figure 3 It is a schematic diagram of the three-dimensional structure of several local units of the present invention.

[0052] Figure 4 It is an overall plan view of the present invention.

[0053] Figure 5 It is a schematic side view of a local unit of the present invention.

[0054] Figure 6 It is a schematic diagram of the three-dimensional structure of a local unit of the present invention.

[0055] Figure 7 It is a schematic diagram of the three-dimensional structure of the V-shaped column of the present invention.

[0056] Figure 8 It is a schematic diagram of the three-dimensional structure of the tree-shaped column of the present invention.

[0057] Fig. 9 It is a schematic diagram of the self-stabilizing fixed reinforcement structure of the column base.

[0058] Fig.10 yes Fig. 9 Schematic diagram of the plan structure.

[0059] Fig.11It is a schematic diagram of completing step 2 of the construction method of the present invention.

[0060] Fig.12 It is a schematic diagram showing the completion of step three of the construction method of the present invention.

[0061] Fig.13 It is a schematic diagram showing the completion of step 4 of the construction method of the present invention.

[0062] Fig.14 It is a schematic diagram showing the completion of step five of the construction method of the present invention.

[0063] Fig.15 It is a schematic diagram of completing step six of the construction method of the present invention.

[0064] Fig.16 It is a schematic diagram of completing step eight of the construction method of the present invention.

[0065] Fig.17 It is a schematic diagram of the beginning of step nine of the construction method of the present invention.

[0066] Fig.18 It is a schematic diagram of step nine of the construction method of the present invention.

[0067] Fig.19 It is a schematic diagram of completing step nine of the construction method of the present invention.

[0068] Fig. 20 It is a schematic diagram showing the completion of step eleven of the construction method of the present invention.

[0069] Fig.21 It is a schematic diagram showing the completion of step twelve of the construction method of the present invention.

[0070] Figure numbers: 1-front side column, 2-rear side column, 3-rear middle column, 4-side column, 5-column top frame beam, 6-column body frame beam, 7-V-shaped column, 71-oblique column rod, 72-column body connecting beam, 8-tree-shaped column, 81-cross rib plate, 82-tree main beam, 83-tree connecting beam, 84-tree radial support rod, 85-tree cross support rod, 831-front tree connecting beam, 832-rear tree connecting beam, 9-diamond compression rod prestressed string structure, 91-cable support rod, 92-cable, 93-diamond compression rod, 94-diamond connecting rod, 10-cantilever Curtain wall structure, 101-front cantilever structure, 1011-front low frame, 1012-front elevated frame, 1021-rear low frame, 1022-rear elevated frame, 102-rear cantilever structure, 103-left and right cantilever structures, 1031-low frames on both sides, 1032-elevated frames on both sides, 11-V-shaped column connection node, 12-tree-shaped column front connection node, 13-front connection node, 14-rear connection node, 15-middle connection node, 16-embedded plate, 17-support body, 18-surrounding self-stabilizing fixed panel, 19-column foot node. DETAILED DESCRIPTION

[0071] See the examples Figure 1-2 As shown, a staggered double-row diamond-shaped compression rod parallel steel roof with different columns, the steel structure roof system is a 74.24m span beam structure system, which belongs to the scope of demonstration of super-dangerous large projects. The bottom stands on the main structure, which is a steel concrete structure, including frame columns, namely the front side column 1, the rear side column 2, the rear middle column 3 and the side columns 4 on the left and right sides, wherein the front side column 1 and the rear side column 2 are respectively located on the corresponding front and rear longitudinal edge column axes of the main structure, the side column 4 is located on the corresponding left and right transverse edge column axes of the main structure, and the rear middle column 3 is located on the rear longitudinal adjacent column axis adjacent to the rear side column 2. The column tops of the main structure are staggered, and the elevations from low to high are the front side column 1, the rear middle column 3 and the rear side column 2.

[0072] The main structure also includes frame beams, including column top frame beams 5 and column body frame beams 6, wherein the column top frame beams 5 are connected between the column tops of each frame column, and the column body frame beams 6 are connected between the column bodies of each frame column.

[0073] See also Figure 1-6 The steel roof comprises V-shaped columns 7, tree-shaped columns 8, diamond-shaped compression rod prestressed string structure 9 and cantilevered curtain wall structure 10 around the periphery.

[0074] See also Figure 7 As shown, the V-shaped column 7 includes a group of V-shaped column units which are continuously arranged and connected as a whole on the front longitudinal edge column axis, and the column foot nodes of the V-shaped column units are hinged to the column tops of the front row side columns 1 one by one, and each V-shaped column unit includes two left-right symmetrical inclined column rods 71, and the bottom ends of the two inclined column rods 71 ​​are fixedly connected to the same column foot node, and the top ends of the inclined column rods 71 ​​of two adjacent V-shaped column units are fixedly connected to the column top node of the same inclined column rod 71, and the column top node is the V-shaped column connection node 11.

[0075] The two ends of the column frame beam 6 on the front side of the main structure are respectively fixedly connected to the column bodies of the adjacent inclined column rods 71. The V-shaped column 7 also includes a column connecting beam 72. The column connecting beam 72 is located between the rod sides of the inclined column rods 71 ​​and is hinged to the column bodies of the adjacent inclined column rods 71 ​​at both ends. The column connecting beam 72 is located directly above the column frame beam 6.

[0076] See also Figure 8 As shown, the tree-shaped column 8 includes a group of tree-shaped column units which are continuously arranged and connected as a whole on the rear side adjacent to the column axis in the longitudinal direction. The column foot nodes of the tree-shaped column units are hinged one by one on the column tops of the rear row middle columns 3. The tree-shaped column as a whole is an inverted quadrangular pyramid, and the top surface forms a rectangular frame. The front two corner connection nodes of the rectangular frame are the front nodes 12 of the tree-shaped column.

[0077] See also Figure 8 As shown, each tree column unit includes a cross rib plate 81, a tree main beam 82, a tree connecting beam 83, a tree radial support rod 84 and a tree cross support rod 85. The tree main beam 82 has two horizontal parallel beams located in the same plane, and the tree connecting beam 83 has two longitudinal beams perpendicular to the tree main beam 82 and located in the plane. The two ends of the tree connecting beam 83 are respectively fixedly connected to the ends of the tree main beams 82 on the left and right sides to form a rectangular frame.

[0078] There are four tree radial struts 84, the bottom ends of which are fixedly connected to the same column foot node, cross ribs 81 are fixedly connected between the tree radial struts 84, and the top ends are radially fixedly connected to the bottoms of the four corner connection positions of the rectangular frame to form the sides of an inverted quadrangular pyramid.

[0079] The tree cross support rod 85 and the rectangular frame are located in the same plane, and the four ends of the tree cross support rod 85 are fixedly connected to the four corner connection position nodes of the rectangular frame respectively.

[0080] Two adjacent tree-shaped column units share a tree main beam 82, and the tree connecting beam 83 is divided into a front tree connecting beam 831 and a rear tree connecting beam 832, wherein the rear tree connecting beam 832 is located on the rear longitudinal edge column axis, and the middle part of the bottom of the rear tree connecting beam 832 is fixedly connected to the top of the rear row of side columns 2, and the rear tree connecting beam 832 forms the column top frame beam 5 on the rear side of the main structure.

[0081] The V-shaped column connection nodes 11 and the tree-shaped column front connection nodes 12 correspond to each other front to back and are located on the same horizontal straight line.

[0082] See also Figure 3-6 As shown, the diamond strut prestressed tensioned structure 9 includes a group of diamond strut units that are laterally fixedly connected between the V-shaped column connection node 11 and the tree-shaped column front connection node 12.

[0083] The front end connection node 13 of the rhombus pressure rod unit is hinged to the V-shaped column connection node 11, and the rear end connection node 14 of the pressure rod of the rhombus pressure rod unit is fixedly connected to the tree-shaped column front connection node 12.

[0084] The diamond-shaped pressure rod unit also includes a cable strut 91 and a cable 92. The cable 92 is arranged in a one-to-one correspondence with the diamond-shaped pressure rod unit. The two ends of the cable 92 are respectively connected to the bottom of the front end connection node 13 and the bottom of the rear end connection node 14 of the unit, and the middle part of the cable 92 is supported on the bottom end of the cable strut 91.

[0085] The diamond compression rod unit includes a diamond compression rod 93 and a diamond connecting rod 94. The diamond compression rod 93 is composed of four compression rods. The two ends of the front column top frame beam 5 of the main structure are respectively fixedly connected to the front end connection node 13 of the adjacent compression rod. The front end connection node 13 of the compression rod is hinged to the V-shaped column connection node 11, and the rear end connection node 14 of the compression rod is fixedly connected to the tree-shaped column front connection node 12. The diamond connecting rod 94 is longitudinally arranged and its two ends are hinged between the middle connection nodes 15 of the compression rod. The diamond connecting rod 94 is used as the dividing line. The front two rods of the diamond compression rod 93 are located in the same front plane, and the rear two rods of the diamond compression rod 93 are located in the same rear plane.

[0086] The cable support rod 91 is arranged directly below the diamond connecting rod 94. The cable support rod 91 is in a V-shape of equal length. The two top ends of the cable support rod 91 are respectively hinged to the middle connecting nodes 15 of the pressure rods on both sides. The diamond connecting rod 94 and the cable support rod 91 are in an isosceles triangle. The two ends of the cable 92 are respectively connected to the bottom of the front end connecting node 13 and the bottom of the rear end connecting node 14 of the pressure rod.

[0087] The column foot node of the V-shaped column unit is a cast steel column foot, which is hinged to the column top of the front row side column 1 through a self-stabilizing pot-type ball joint support, and the front row side column 1 is a steel concrete column or a reinforced concrete column. The column foot node of the tree-shaped column unit is a cast steel column foot, which is hinged to the column top of the rear row center column 3 through a self-stabilizing pot-type ball joint support, and the rear row center column 3 is a steel concrete column or a reinforced concrete column.

[0088] See also Figure 9-10 As shown, the self-stabilizing basin-type ball-joint support is fixedly connected to the top surface of the embedded plate 16 embedded in the center of the column top plane, and the top surface of the embedded plate 16 is flush with the column top plane. The self-stabilizing basin-type ball-joint support includes a support body 17 and a surrounding self-stabilizing fixed group plate 18. The surrounding self-stabilizing fixed group plate 18 has a total of six pieces, which are evenly distributed on the surrounding surface of the support body 17. The surrounding self-stabilizing fixed group plate 18 is a rectangular group plate, and its top surface is flush with the top surface of the support body, its bottom surface is fixedly connected to the embedded plate 16, and its inner surface is fixedly connected to the outer surface of the support body 17. In actual construction, the surrounding self-stabilizing fixed group plate 18 can be cut off after the installation of the support upper structure is completed.

[0089] See also Figure 1-4As shown, the staggered double-row diamond-shaped compression rod parallel steel roof has the following construction steps: the cantilever curtain wall structure 10 includes a front cantilever structure 101, a rear cantilever structure 102 and left and right cantilever structures 103, wherein the front cantilever structure 101 is a double-layer frame, including a front low frame 1011 and a front high frame 1012, the rear cantilever structure is a double-layer frame, including a rear low frame 1021 and a rear high frame 1022, and the left and right cantilever structures are double-layer frames, including two side low frames 1031 and two side high frames 1032.

[0090] The lower halves of the rear side columns 2 and the side side columns 4 are steel-concrete columns or reinforced concrete columns, and the upper halves of both are steel columns within the height range of the cantilever curtain wall structure 10 .

[0091] Step 1: Construct the main structure.

[0092] Step 2: construct the column base node of the V-shaped column unit on the front side column 1.

[0093] Step three, corresponding to the rear side column 2, construct the steel column of the rear side column 2 within the height range of the rear low frame 1021 and the rear low frame 1021.

[0094] Step 4, corresponding to the side column 4, construct the steel column of the side column 4 within the height range of the low frames 1031 on both sides and the low frames 1031 on both sides.

[0095] Step 5: construct V-shaped column units on the column base nodes of the V-shaped column units and connect them longitudinally into one.

[0096] Step six, construct the steel columns of the rear side columns 2 within the height range of the rear elevated frame 1022.

[0097] Step seven, construct the column base node of the tree-shaped column unit on the rear middle column 3.

[0098] Step eight, construct tree-shaped columns on the rear middle columns 3 and the rear side columns 2.

[0099] Step nine: construct the diamond strut 93 of the diamond strut unit between the V-shaped column unit and the tree-shaped column unit.

[0100] Step ten, corresponding to the side column 4, construct the steel column of the side column within the height range of the elevated 1032 on both sides.

[0101] Step eleven, construct the front low frame 1011, the front elevated frame 1012, the rear elevated frame 1022 and the elevated frames 1032 on both sides.

[0102] Step 12: construct the diamond-shaped connecting rods 94 and the cable support rods 91.

[0103] Step thirteen, construct the cable 92.

Claims

1. A staggered double-row column-supported diamond-shaped compression rod parallel steel roof, with the bottom standing on the main structure. Features: The main structure is a steel-concrete structure, comprising frame columns, namely, front side columns (1), rear side columns (2), rear middle columns (3), and side columns (4) on the left and right sides, wherein the front side columns (1) and the rear side columns (2) are respectively located on the corresponding front and rear longitudinal edge column axes of the main structure, the side columns (4) are located on the corresponding left and right transverse edge column axes of the main structure, and the rear middle column (3) is located on the rear longitudinal adjacent column axis adjacent to the rear side column (2). The column tops of the main structure are arranged in a staggered manner, and the elevations are, from low to high, the front side columns (1), the rear middle columns (3), and the rear side columns (2). The main structure also includes frame beams, including column top frame beams (5) and column body frame beams (6), wherein the column top frame beams (5) are connected between the column tops of the frame columns, and the column body frame beams (6) are connected between the column bodies of the frame columns. The steel roof comprises a V-shaped column (7), a tree-shaped column (8), a diamond-shaped compression rod prestressed string structure (9), and a cantilevered curtain wall structure (10) surrounding the exterior. The V-shaped column (7) comprises a group of V-shaped column units which are continuously arranged on the front longitudinal edge column axis and connected as one body, the column foot nodes of the V-shaped column units are hinged to the column tops of the front row side columns (1) in a one-to-one correspondence, each V-shaped column unit comprises two left-right symmetrical inclined column rods (71), the bottom ends of the two inclined column rods (71) are fixedly connected to the same column foot node, the top ends of the inclined column rods (71) of two adjacent V-shaped column units are fixedly connected to the column top node of the same inclined column rod (71), and the column top node is the V-shaped column connection node (11). The tree-shaped column (8) comprises a group of tree-shaped column units which are continuously arranged on the rear side and adjacent to the column axis in the longitudinal direction and connected as a whole. The column foot nodes of the tree-shaped column units are hinged to the column tops of the rear middle columns (3) one by one. The tree-shaped column is in the form of an inverted quadrangular pyramid as a whole, and the top surface forms a rectangular frame. The connection nodes at the two front corners of the rectangular frame are the front connection nodes (12) of the tree-shaped column. The V-shaped column connection node (11) and the tree-shaped column front connection node (12) correspond to each other front to back and are located on the same horizontal straight line. The diamond-shaped compression rod prestressed string structure (9) comprises a group of diamond-shaped compression rod units which are laterally fixedly connected between a V-shaped column connection node (11) and a tree-shaped column front connection node (12). The front end connection node (13) of the rhombus pressure rod unit is hinged to the V-shaped column connection node (11), and the rear end connection node (14) of the pressure rod of the rhombus pressure rod unit is fixedly connected to the tree-shaped column front connection node (12). The diamond-shaped pressure rod unit further comprises a cable support rod (91) and a cable (92), wherein the cable (92) is arranged in a one-to-one correspondence with the diamond-shaped pressure rod unit, and the two ends of the cable (92) are respectively connected to the bottom of the front end connection node (13) and the bottom of the rear end connection node (14) of the unit, and the middle part of the cable (92) is supported on the bottom end of the cable support rod (91).

2. According to the staggered double-row different-column supported diamond-shaped compression rod parallel steel roof of claim 1, Features: The two ends of the column frame beam (6) on the front side of the main structure are respectively fixedly connected to the column of the adjacent inclined column rod (71); the V-shaped column (7) further comprises a column connecting beam (72); the column connecting beam (72) is located between the rod sides of the inclined column rod (71); the two ends of the column connecting beam (72) are respectively hinged to the column of the adjacent inclined column rod (71); the column connecting beam (72) is located directly above the column frame beam (6).

3. According to claim 1, the staggered double-row different-column-supported diamond-shaped compression rod parallel steel roof, Features: Each tree-shaped column unit includes a cross rib plate (81), a tree main beam (82), a tree connecting beam (83), a tree radial support rod (84) and a tree cross support rod (85). The tree main beams (82) are two in total and are parallel to each other in the same plane, and the tree connecting beams (83) are two in total and are perpendicular to the tree main beams (82) in the same plane. The two ends of the tree connecting beams (83) are respectively fixedly connected to the ends of the tree main beams (82) on the left and right sides to form a rectangular frame. There are four tree radial struts (84) in total, the bottom ends of which are fixedly connected to the same column foot node, cross ribs (81) are fixedly connected between the tree radial struts (84), and the top ends are radially fixedly connected to the bottoms of the four corner connection positions of the rectangular frame to form the sides of an inverted quadrangular pyramid. The tree cross support rod (85) and the rectangular frame are located in the same plane, and the four ends of the tree cross support rod (85) are respectively fixedly connected to the four corner connection position nodes of the rectangular frame.

4. According to claim 3, the staggered double-row different-column-supported diamond-shaped compression rod parallel steel roof, Features: Two adjacent tree-shaped column units share a tree main beam (82), and the tree connecting beam (83) is divided into a front tree connecting beam (831) and a rear tree connecting beam (832), wherein the rear tree connecting beam (832) is located on the rear longitudinal edge column axis, and the middle part of the bottom of the rear tree connecting beam (832) is fixedly connected to the column top of the rear row side column (2), and the rear tree connecting beam (832) forms the column top frame beam (5) on the rear side of the main structure.

5. According to claim 1, the staggered double-row different-column-supported diamond-shaped compression rod parallel steel roof, Features: The diamond pressure rod unit comprises a diamond pressure rod (93) and a diamond connecting rod (94), wherein the diamond pressure rod (93) is composed of four pressure rods, and the two ends of the front column top frame beam (5) of the main structure are respectively fixedly connected to the front end connection nodes (13) of the adjacent pressure rods, the front end connection node (13) of the pressure rod is hinged to the V-shaped column connection node (11), and the rear end connection node (14) of the pressure rod is fixedly connected to the tree-shaped column front connection node (12), and the diamond connecting rod (94) is longitudinally arranged, and its two ends are hinged between the middle connection nodes (15) of the pressure rod, wherein the diamond connecting rod (94) is used as a dividing line, the front two rods of the diamond pressure rod (93) are located in the same front plane, and the rear two rods of the diamond pressure rod (93) are located in the same rear plane.

6. According to claim 5, the staggered double-row different-column-supported diamond-shaped compression rod parallel steel roof, Features: The cable support rod (91) is arranged directly below the corresponding diamond-shaped connecting rod (94), and the cable support rod (91) is in a V-shape of equal length. The two top ends of the cable support rod (91) are respectively hinged to the middle connection nodes (15) of the pressure rods on both sides. The diamond-shaped connecting rod (94) and the cable support rod (91) are in the shape of an isosceles triangle. The two ends of the cable (92) are respectively connected to the bottom of the front connection node (13) and the bottom of the rear connection node (14) of the pressure rod.

7. According to claim 6, the staggered double-row different-column-supported diamond-shaped compression rod parallel steel roof, Features: The column foot node (19) of the V-shaped column unit is a cast steel column foot, and the cast steel column foot is hinged to the column top of the front row side column (1) via a self-stabilizing basin-type ball joint support, and the front row side column (1) is a steel concrete column or a reinforced concrete column.

8. According to claim 6, the staggered double-row different-column-supported diamond-shaped compression rod parallel steel roof, Features: The column foot node (19) of the tree-shaped column unit is a cast steel column foot, and the cast steel column foot is hinged to the column top of the rear middle column (3) via a self-stabilizing basin-type ball joint support, and the rear middle column (3) is a steel concrete column or a reinforced concrete column.

9. The staggered double-row different-column-supported diamond-shaped compression rod parallel steel roof according to claim 7 or 8, Features: The self-stabilizing basin-type ball-joint support is fixedly connected to the top surface of an embedded plate (16) embedded in the center of the column top plane, and the top surface of the embedded plate (16) is flush with the column top plane. The self-stabilizing basin-type ball-joint support comprises a support body (17) and a peripheral self-stabilizing fixed group plate (18). The peripheral self-stabilizing fixed group plate (18) has a total of six pieces, which are evenly distributed on the surrounding surfaces of the support body (17). The peripheral self-stabilizing fixed group plate (18) is a rectangular group plate, the top surface of which is flush with the top surface of the support body, the bottom surface of which is fixedly connected to the embedded plate (16), and the inner surface of which is fixedly connected to the outer surface of the support body (17).

10. A staggered double-row, different-column-supported, diamond-shaped compression rod parallel steel roof according to claim 9, It is characterized in that The construction steps are as follows: the cantilever curtain wall structure (10) comprises a front cantilever structure (101), a rear cantilever structure (102), and left and right cantilever structures (103), wherein the front cantilever structure (101) is a double-layer frame, comprising a front low frame (1011) and a front high frame (1012), the rear cantilever structure is a double-layer frame, comprising a rear low frame (1021) and a rear high frame (1022), and the left and right cantilever structures are double-layer frames, comprising two low frames (1031) and two high frames (1032). The lower halves of the rear side columns (2) and the side columns (4) are steel-concrete columns or reinforced concrete columns, and the upper halves of both are steel columns within the height range of the cantilever curtain wall structure (10). Step 1: construct the main structure; Step 2: constructing the column foot node (19) of the V-shaped column unit on the front side column (1); Step 3, constructing the steel columns of the rear side columns (2) within the height range of the rear low frame (1021) and the rear low frame (1021); Step 4: construct the steel columns of the side columns (4) within the height range of the low frames (1031) on both sides and the low frames (1031) on both sides; Step 5, constructing V-shaped column units at the column foot nodes of the V-shaped column units and connecting them longitudinally into one; Step 6, constructing the steel columns of the rear side columns (2) within the height range of the rear elevated frame (1022); Step 7: construct the column foot nodes of the tree-shaped column units on the rear middle columns (3); Step 8, constructing tree-shaped columns on the rear middle columns (3) and the rear side columns (2); Step nine, constructing a diamond strut (93) of the diamond strut unit between the V-shaped column unit and the tree-shaped column unit; Step 10, constructing steel columns of side columns within the height range of the elevated frames (1032) on both sides; Step 11, constructing the front low frame (1011), the front elevated frame (1012), the rear elevated frame (1022) and the elevated frames on both sides (1032); Step 12, constructing the diamond-shaped connecting rod (94) and the cable support rod (91); Step 13, construct the cable (92).

Images