Steel structure frame for building

Abstract

The invention relates to the technical field of building steel structures, and discloses a steel structure frame for buildings, which comprises two symmetrical support steel frames, vertical slide rails are fixedly arranged on the inner sides of the support steel frames, a plurality of moving cross beams are arranged between the two vertical slide rails, vertical moving slide seats are symmetrically and fixedly arranged at the two ends of the two moving cross beams, and the vertical moving slide seats are fixedly arranged on the support steel frames. The two vertical sliding rails and the vertical moving sliding seats are fixed through two sets of symmetrical first fixing screws, sliding grooves are formed in the opposite faces of the two moving cross beams, telescopic moving vertical beams are arranged in the two sliding grooves in a sliding mode, and transverse moving sliding seats are fixedly arranged at the upper ends and the lower ends of the telescopic moving vertical beams through first fixing angle steel. The height of the symmetrical moving cross beam is adjusted through the first fixing screws, the horizontal position of the telescopic moving vertical beam is adjusted through the first fixing angle steel, the door and window position can be flexibly adjusted according to door and window function change, daylighting adjustment and other requirements, and the overall strength and stability of the steel structure frame are not affected.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building steel structure, and particularly relates to a steel structure frame for buildings. BACKGROUND

[0002] In the process of continuous development of the modern construction industry, steel structure frames have become the core structural system supporting various building forms due to their unique performance advantages. From urban landmark super high-rise buildings to large-scale workshops required by industrial production, to large-span public buildings such as stadiums and exhibition centers, steel structure frames play a crucial role and provide a solid guarantee for the safety, stability and functionality of buildings.

[0003] In terms of collaborative adaptation with other building systems, the existing steel structure frame has obvious deficiencies. Specifically, in terms of door and window design, the traditional steel structure frame door and window generally adopt a fixed connection mode, and the door and window frame is directly fastened with the steel structure body through welding or rigid bolts. Once the installation is completed, the size and position are permanently fixed. This design mode is derived from the single consideration of structural stability in early buildings, but it ignores the functional adjustment needs that may occur in the whole life cycle of the building: when the building use changes, for example, an office space is converted into a commercial display area, if the lighting area needs to be expanded or the passage needs to be widened, the fixed-size door and window cannot adapt to the new functional positioning; in the residential building scene, even if the homeowner wants to optimize the size or position of the door and window due to changes in family structure, lighting preference adjustment and other needs, the rigid connection characteristics of the traditional steel structure frame will make such adjustments difficult to implement.

[0004] Therefore, the applicant proposes a steel structure frame for buildings. SUMMARY

[0005] The purpose of the present application is to provide a steel structure frame for buildings, which solves the following technical problems: in terms of collaborative adaptation with other building systems, the existing steel structure frame has obvious deficiencies. Specifically, in terms of door and window design, the traditional steel structure frame door and window generally adopt a fixed connection mode, and the door and window frame is directly fastened with the steel structure body through welding or rigid bolts. Once the installation is completed, the size and position are permanently fixed. This design mode is derived from the single consideration of structural stability in early buildings, but it ignores the functional adjustment needs that may occur in the whole life cycle of the building: when the building use changes, for example, an office space is converted into a commercial display area, if the lighting area needs to be expanded or the passage needs to be widened, the fixed-size door and window cannot adapt to the new functional positioning; in the residential building scene, even if the homeowner wants to optimize the size or position of the door and window due to changes in family structure, lighting preference adjustment and other needs, the rigid connection characteristics of the traditional steel structure frame will make such adjustments difficult to implement.

[0006] The purpose of the present application can be achieved by the following technical solutions: A steel structure frame for building, comprising two symmetrical support steel frames, characterized in that the inner side of the support steel frame is fixedly connected with vertical sliding rails, a plurality of movable cross beams are arranged between the two vertical sliding rails, vertical moving sliding seats are symmetrically fixed at the two ends of the two movable cross beams, the two vertical sliding rails and the vertical moving sliding seats are fixed through two symmetrical first fixing screws, a plurality of first screw holes matched with the first fixing screws are formed at the inner side of the two vertical sliding rails at equal intervals, a reinforcing assembly is arranged between the movable cross beam and the vertical sliding rail, and the reinforcing assembly is used for fixing the movable cross beam and the vertical sliding rail. The opposite surfaces of the two movable cross beams are provided with sliding grooves, and telescopic movable vertical beams are symmetrically arranged in the two sliding grooves, horizontal moving sliding seats are fixedly arranged at the upper and lower ends of the two telescopic movable vertical beams, first fixed angle steels are fixedly arranged at the upper and lower ends of the horizontal moving sliding seats, and the first fixed angle steels are fixedly connected with the movable cross beam and the telescopic movable vertical beam through a plurality of second fixing screws.

[0007] As a further scheme of the present application, a plurality of second screw holes matched with the second fixing screws are formed in the surfaces of the horizontal moving sliding seat and the movable cross beam.

[0008] As a further scheme of the present application, the reinforcing assembly comprises a mounting plate fixedly arranged at the inner side of the two vertical sliding rails, an L-shaped angle steel is arranged at the outer side of the mounting plate, a first screw rod and a second screw rod are symmetrically arranged between the L-shaped angle steel and the vertical sliding rail and the movable cross beam, nuts are threadedly connected with the outer sides of the first screw rod and the second screw rod, and a limiting assembly is arranged in the first screw rod and the second screw rod.

[0009] As a further scheme of the present application, the limiting assembly comprises a through hole formed in the first screw rod and the second screw rod, a plurality of limiting grooves are symmetrically formed in the inner side of the nut, limiting blocks are symmetrically arranged at the two ends of the inner side wall of the through hole, and a return spring is arranged between the two limiting blocks.

[0010] As a further scheme of the present application, the limiting blocks are matched with the limiting grooves.

[0011] As a further scheme of the present application, the sliding groove is a dovetail groove, and the two horizontal moving sliding seats are slidably arranged in the inner side of the sliding groove.

[0012] As a further scheme of the present application: the inner side of the upper and lower ends of the two support steel frames is provided with a clamping groove, the upper and lower ends of the two support steel frames are provided with a support bottom beam and a support top beam, the two ends of the support bottom beam and the support top beam are fixedly provided with a clamping block matched with the clamping groove, and the inner side of the two support steel frames is symmetrically provided with a mounting hole, and the support steel frame and the support bottom beam and the support top beam are respectively provided with a fixing bolt matched with the mounting hole.

[0013] As a further scheme of the present application: the bottom end and the top end of the two support steel frames are fixedly provided with a second fixed angle steel corresponding to the support bottom beam and the support top beam through a plurality of fourth fixing screws.

[0014] As a further scheme of the present application: the support steel frame, the support bottom beam and the support top beam are all I-shaped steel.

[0015] As a further scheme of the present application: the telescopic movable vertical beam comprises two mutually sleeved movable rods, one side surface of one of the movable rods is provided with a plurality of third threaded holes, and the surface of the other movable rod is provided with a third fixing screw threadedly connected with the third threaded holes.

[0016] The beneficial effects of the present application are: (1) The first fixed screw of the present application cooperates with the first threaded hole to flexibly adjust the height of the two symmetric movable cross beams, and the horizontal position of the two symmetric telescopic movable vertical beams is clamped through the sliding groove, the first fixed angle steel cooperates with a plurality of second fixed screws to realize the fixation of the movable cross beam and the telescopic movable vertical beam, the size and specification of the door and window can be flexibly adjusted according to the use demand (such as function change, lighting adjustment, facade reconstruction, etc.), the operation difficulty, construction cost and period are reduced, and the overall strength and stability of the steel structure frame are not affected; (2) The present application forms a clamping structure for the nut by driving the limiting block and the limiting groove in cooperation, when the nut is screwed and fixed, the clamping effect of the limiting assembly can directly limit the rotation of the nut, which can effectively prevent the nut from loosening due to vibration, impact or long-term use. Compared with the traditional locking method which simply relies on friction force, the stability of this structure is significantly improved, thereby improving the overall stability of the steel structure frame.

[0017] Additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described below in combination with the drawings.

[0019] Figure 1 is a structural schematic diagram of the whole application; Figure 2is a structural schematic diagram of the reinforcing assembly of the present application; Figure 3 is a structural schematic diagram of the limiting assembly of the present application; Figure 4 is a structural schematic diagram of the reinforcing assembly as a whole of the present application; Figure 5 is a structural schematic diagram of the telescopic movable vertical beam of the present application; Figure 6 is a structural schematic diagram of the first fixed angle steel and the second fixed screw of the present application; Figure 7 is a structural schematic diagram of the clamping block and other components of the present application; Figure 8 is a structural schematic diagram of the clamping groove and other components of the present application.

[0020] In the figure: 1, support steel frame; 2, vertical slide rail; 3, movable cross beam; 4, vertical movable slide; 5, first fixed screw; 6, first threaded hole; 7, reinforcing assembly; 71, mounting plate; 72, L-shaped angle steel; 73, first screw rod; 74, second screw rod; 75, nut; 76, limiting assembly; 761, through hole; 762, limiting groove; 763, limiting block; 764, return spring; 765, lever; 9, sliding groove; 10, telescopic movable vertical beam; 1001, movable rod; 1002, third threaded hole; 1003, third fixed screw; 11, transverse movable slide; 12, first fixed angle steel; 13, second fixed screw; 14, second threaded hole; 15, clamping groove; 16, support bottom beam; 17, support top beam; 18, clamping block; 19, mounting hole; 20, fixed bolt; 21, second fixed angle steel; 22, fourth fixed screw. DETAILED DESCRIPTION

[0021] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar symbols represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation on the present application.

[0022] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0023] In the field of building steel structure technology, the dimensions of doors and windows corresponding to the main body of a steel structure frame used in buildings are difficult to adjust flexibly during actual use. Specifically, due to the relatively fixed connection nodes and spatial size limitations formed in the design, processing, and installation stages of the steel structure frame, when it is necessary to adjust the size and specifications of doors and windows according to usage needs (such as functional changes, lighting adjustments, facade renovations, etc.), it will be constrained by the rigidity of the frame itself. Not only is the adjustment operation extremely difficult, but it often requires large-scale modifications to the original steel structure (such as cutting, re-welding nodes, etc.), which increases construction costs and time, and may also adversely affect the overall stability and safety of the steel structure. In view of this, the present invention develops a steel structure frame for buildings that achieves flexible adjustment of door and window positions through a series of innovative designs. The specific implementation method is as follows: Example 1: As Figure 1 As shown, a steel structure frame for building includes two symmetrically arranged supporting steel frames 1. Vertical slide rails 2 are fixedly connected to the inner sides of both supporting steel frames 1. Multiple movable crossbeams 3 are arranged between the two vertical slide rails 2. In this embodiment, there are two movable crossbeams 3. Vertical movable slide blocks 4 are symmetrically fixed to both ends of each movable crossbeam 3. The two vertical movable slide blocks 4 are fixed to the two vertical slide rails 2 and the vertical movable slide blocks 4 by two sets of symmetrical first fixing screws 5. Multiple first threaded holes 6, which are adapted to the first fixing screws 5, are equally spaced on the inner sides of the two symmetrical vertical slide rails 2. By adjusting the first fixing screws 5 within the first threaded holes 6 at different heights, the height of the two symmetrical vertical movable slide blocks 4 can be quickly adjusted, thereby achieving rapid adjustment of the height of the movable crossbeams 3, and ultimately realizing the installation of steel structure frame doors and windows. The rapid and flexible adaptation of vertical height greatly improves the convenience and efficiency of door and window height adjustment. The first fixing screw 5 is set in the first threaded hole 6 to fix the vertical slide rail 2 and the moving crossbeam 3. A reinforcing component 7 is set between the moving crossbeam 3 and the vertical slide rail 2. The reinforcing component 7 is used to support and fix the moving crossbeam 3 and the vertical slide rail 2, making the connection between the two tighter and improving the overall stability of the steel structure frame. A fixing plate is set between the first fixing screw 5 and the supporting steel frame 1. The fixing plate is used to distribute the bolt force and protect the supporting steel frame 1. The supporting steel frame 1 is usually a metal component (such as section steel, steel plate, etc.). If the first fixing screw 5 is directly connected to the surface of the steel frame, the pressure when the first fixing screw 5 is tightened may be concentrated in the local area where the bolt head contacts the steel frame, causing the steel frame surface to deform, dent, or even damage the steel frame material. According to the specific height of the door and window during installation, the height of the two symmetrical moving cross beams 3 is adjusted, so that the center of the two symmetrical moving cross beams 3 coincides with the center of the door and window, and the upper and lower widths of the two symmetrical moving cross beams 3 are adapted to the upper and lower widths of the door and window. After the height is determined, a mark is made, the vertical moving slide 4 is slid to the specified height, and the first fixing screw 5 and the first threaded hole 6 are matched to realize the quick fixing of the position of the moving cross beam 3. When the steel structure frame needs to be changed in function, the lighting needs to be adjusted, the facade needs to be transformed, and the position of the door and window needs to be adjusted, the first fixing screw 5 is loosened, the height of the two symmetrical moving cross beams 3 is adjusted, and then the first fixing screw 5 is used to fix the moving cross beam 3 after the height adjustment.

[0024] Further, as shown in Figures 2-4 , the reinforcing assembly 7 includes a mounting plate 71 fixedly arranged on the inner side surface of the two vertical sliding rails 2. The outer side of the mounting plate 71 is provided with an L-shaped angle steel 72. The L-shaped angle steel 72 is used to fix the moving cross beam 3 and the vertical sliding rail 2. The upper and lower end surfaces of the L-shaped angle steel 72 are tightly attached to the moving cross beam 3 and the vertical sliding rail 2, respectively. First and second screws 73 and 74 are arranged between the L-shaped angle steel 72 and the vertical sliding rail 2 and the moving cross beam 3, respectively. The first and second screws 73 and 74 are threadedly connected with a nut 75 on the outer side of the L-shaped angle steel 72. Anti-loose washers are sleeved on the surfaces of the first and second screws 73 and 74. The anti-loose washers are designed in structure or have material properties to offset the risk of thread loosening caused by factors such as vibration, impact and temperature change, so as to ensure the stability and reliability of the connection. Limiting assemblies 76 are arranged in the interiors of the first and second screws 73 and 74. The limiting assemblies 76 are used to limit the nut 75 to prevent the nut 75 from loosening. The upper and lower end surfaces of the L-shaped angle steel 72 are tightly attached to the moving cross beam 3 and the vertical sliding rail 2, respectively. The first and second screws 73 and 74 are used in cooperation with the nut 75 to fix the L-shaped angle steel 72, so that the moving cross beam 3 and the vertical sliding rail 2 are more closely connected, and the overall stability of the steel structure frame is improved.

[0025] Further, as shown in Figure 3 , the limiting assemblies 76 include through holes 761 opened in the interiors of the first and second screws 73 and 74. A plurality of limiting grooves 762 are symmetrically opened in the interior of the nut 75. Limiting blocks 763 are symmetrically and slidably arranged at both ends of the inner side wall of the through hole 761. The limiting blocks 763 are adapted to the limiting grooves 762. A return spring 764 is arranged between the two limiting blocks 763. A push rod 765 is fixedly arranged on one side of the two limiting blocks 763 and penetrates to the outer side of the through hole 761. Pull two pairs of symmetrical lever 765 drive two pairs of symmetrical limit block 763 move towards, extrude reset spring 764, reset spring 764 drive two limit block 763 move, remove the clamping and fixing of limit block 763 and limit slot 762, nut 75 can be free rotation, after the nut 75 fixed, loosen the lever 765, reset spring 764 drive limit block 763 and limit slot 762 clamping, effectively limit the loosening of nut 75 due to vibration, impact or long-term use, compared with the simple locking mode depending on friction, the stability is better; In the embodiment one, as shown in Figure 5 , Figure 6 The opposite surface of the two moving cross beams 3 is provided with a sliding groove 9, the sliding groove 9 is a dovetail groove, the telescopic movable vertical beam 10 is fixed by clamping the dovetail groove, the two sliding grooves 9 are symmetrically provided with the telescopic movable vertical beam 10, the upper and lower ends of the telescopic movable vertical beam 10 are fixedly provided with a horizontal moving sliding seat 11, the horizontal moving sliding seat 11 is slidingly clamped in the sliding groove 9, the upper and lower ends of the horizontal moving sliding seat 11 are fixedly provided with a first fixed angle steel 12, the first fixed angle steel 12 is fixedly connected with the moving cross beam 3 and the telescopic movable vertical beam 10 by a plurality of second fixed screws 13 respectively, a plurality of second screw holes 14 matched with the second fixed screws 13 are formed in the surface of the horizontal moving sliding seat 11 and the moving cross beam 3; By adjusting the cooperation connection between the second fixed screw 13 and the second screw hole 14 at different positions, the position of the two symmetrically arranged telescopic movable vertical beams 10 can be quickly adjusted, according to the horizontal position of the door and window during installation, the positions of the two symmetric telescopic movable vertical beams 10 are adjusted, so that the center of the telescopic movable vertical beam 10 coincides with the center of the door and window, after the position is determined, the upper and lower ends of the two symmetric first fixed angle steels 12 are respectively attached to the outer sides of the moving cross beam 3 and the telescopic movable vertical beam 10, and then the second fixed screw 13 is matched with the second screw hole 14 to realize the fixed connection between the telescopic movable vertical beam 10 and the moving cross beam 3, the length of the telescopic movable vertical beam 10 can be freely adjusted to meet the installation requirements of doors and windows of different heights.

[0026] Further, as shown in Figure 5 The telescopic movable vertical beam 10 includes two moving rods 1001 which are sleeved with each other, one end of one of the moving rods 1001 is fixedly provided with a limiting ring, the limiting ring is arranged to avoid the disconnection of the two moving rods 1001, a plurality of third screw holes 1002 are formed in the side surface of one of the moving rods 1001 at equal intervals, and a third fixed screw 1003 is arranged on the surface of the other moving rod 1001 and is threadedly connected with the third screw hole 1002; The fixing of the two sets of connecting movable rods 1001 is realized by matching the third fixing screw 1003 with the third threaded hole 1002. According to the actual size of the door and window, the exposed length of the two sets of connecting movable rods 1001 is adjusted, so that the internal space size of the telescopic movable vertical beam 10 is matched with the size of the door and window. After the size is determined, the fixing of the two sets of connecting movable rods 1001 is realized by the third fixing screw 1003.

[0027] Example three: on the basis of example one and example two, as shown in Figure 7 , Figure 8 The inner sides of the upper and lower ends of the two symmetrical support steel frames 1 are provided with clamping grooves 15, and the upper and lower ends of the two symmetrical support steel frames 1 are provided with support bottom beams 16 and support top beams 17. The two ends of the support bottom beams 16 and the support top beams 17 are fixedly provided with clamping blocks 18 matched with the clamping grooves 15. The inner sides of the two symmetrical support steel frames 1 are symmetrically provided with mounting holes 19. The support steel frames 1, the support bottom beams 16 and the support top beams 17 are respectively provided with fixing bolts 20 matched with the mounting holes 19. The fixing of the support steel frames 1 and the support bottom beams 16 is realized by the fixing bolts 20 matched with the nuts 75. The bottom ends and the top ends of the two symmetrical support steel frames 1 are fixedly provided with second fixed angle steels 21 corresponding to the support bottom beams 16 and the support top beams 17. The second fixed angle steels 21 connect the support steel frames 1, the support bottom beams 16 and the support top beams 17 by the fourth fixing screws 22. The clamping of the support steel frames 1, the support bottom beams 16 and the support top beams 17 is realized by matching the clamping blocks 18 with the clamping grooves 15, and then the fixing bolts 20 are used for fixing. After fixing, the second fixed angle steels 21 are attached to the side surfaces of the support steel frames 1, the support bottom beams 16 and the support top beams 17, and then the fourth fixing screws 22 are used for fixing. The scattered steel members are combined into an integral system, and the overall stability of the steel structure frame is improved.

[0028] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A steel structural frame for buildings, comprising two pairs of symmetrically arranged supporting steel frames (1), characterized in that, The inner side of the support steel frame (1) is fixedly connected with vertical sliding rails (2), a plurality of movable cross beams (3) are arranged between the two vertical sliding rails (2), vertical movable sliding seats (4) are symmetrically and fixedly arranged at the two ends of the two movable cross beams (3), the two vertical sliding rails (2) and the vertical movable sliding seat (4) are fixed through two groups of symmetric first fixing screws (5), a plurality of first screw holes (6) adapted to the first fixing screws (5) are formed at the inner side of the two vertical sliding rails (2) at equal intervals, a reinforcing assembly (7) is arranged between the movable cross beam (3) and the vertical sliding rail (2), and the reinforcing assembly (7) is used for fixing the movable cross beam (3) and the vertical sliding rail (2). The opposite surfaces of the two movable cross beams (3) are provided with sliding grooves (9), and the two sliding grooves (9) are symmetrically and slidably provided with telescopic movable vertical beams (10), horizontal movable sliding seats (11) are fixedly arranged at the upper and lower ends of the two telescopic movable vertical beams (10), first fixed angle steels (12) are fixedly arranged at the upper and lower ends of the horizontal movable sliding seat (11), and the first fixed angle steels (12) are fixedly connected with the movable cross beam (3) and the telescopic movable vertical beam (10) through a plurality of second fixing screws (13) respectively.

2. A steel structural frame for buildings according to claim 1, characterized in that, The surfaces of the horizontal movable sliding seat (11) and the movable cross beam (3) are provided with a plurality of second screw holes (14) adapted to the second fixing screws (13).

3. A steel structural frame for buildings according to claim 1, characterized in that, The reinforcing assembly (7) comprises a mounting plate (71) fixedly arranged on the inner side of the two vertical sliding rails (2), an L-shaped angle steel (72) is arranged on the outer side of the mounting plate (71), first screws (73) and second screws (74) are symmetrically arranged between the L-shaped angle steel (72), the vertical sliding rail (2) and the movable cross beam (3) respectively, nuts (75) are threadedly connected to the outer sides of the first screws (73) and the second screws (74), and limit assemblies (76) are arranged in the first screws (73) and the second screws (74).

4. A steel structural frame for buildings according to claim 3, characterized in that, The limit assembly (76) comprises a through hole (761) formed in the first screw (73) and the second screw (74), a plurality of limit grooves (762) are symmetrically formed in the inner side of the nut (75), limit blocks (763) are symmetrically and slidably arranged at the two ends of the inner side wall of the through hole (761), and a return spring (764) is arranged between the two limit blocks (763).

5. A steel structural frame for buildings according to claim 4, characterized in that, The limit block (763) is adapted to the limit groove (762).

6. A steel structural frame for buildings according to claim 1, characterized in that, The sliding groove (9) is a dovetail groove, and the two horizontal movable sliding seats (11) are slidably arranged in the sliding groove (9).

7. A steel structural frame for buildings according to claim 1, characterized in that, The inner side of the upper and lower ends of the two support steel frames (1) is provided with a clamping groove (15), and the upper and lower ends of the two support steel frames (1) are provided with a support bottom beam (16) and a support top beam (17), the two ends of the support bottom beam (16) and the support top beam (17) are fixedly provided with a clamping block (18) matched with the clamping groove (15), and the inner side of the two support steel frames (1) is symmetrically provided with a mounting hole (19), and the support steel frame (1), the support bottom beam (16) and the support top beam (17) are respectively provided with a fixing bolt (20) matched with the mounting hole (19).

8. A steel structural frame for buildings according to claim 1, characterized in that, The bottom end and the top end of the two support steel frames (1) are fixedly provided with a second fixed angle steel (21) corresponding to the support bottom beam (16) and the support top beam (17) through a plurality of fourth fixing screws (22).

9. A steel structural frame for buildings according to claim 7, characterized in that, The support steel frame (1), the support bottom beam (16) and the support top beam (17) are all I-shaped steel.

10. A steel structural frame for buildings according to claim 1, characterized in that, The telescopic movable vertical beam (10) comprises two movable rods (1001) which are sleeved with each other, a plurality of third threaded holes (1002) are formed in one side surface of one movable rod (1001), and the surface of the other movable rod (1001) is provided with a third fixing screw (1003) which is threadedly connected with the third threaded hole (1002).

Images