Recyclable auxiliary fixing structure for temporary installation of steel structure frame beam

Abstract

The utility model belongs to the technical field of steel frame structure installation, and aims to solve the problems that a connecting plate type beam column joint is difficult and complex to install, and the in-place period of a frame beam is long. According to the turnover auxiliary fixing structure for temporary installation of the steel structure frame beam, a steel column embracing frame is tightly embraced on a frame column and located above a connecting plate on the frame column; the flange plate clamp is clamped at one end of the frame beam, the upper end of the flange plate clamp extends outwards to form a lap joint plate, and the end of the lap joint plate is in threaded connection with a vertical adjusting bolt; the lap joint plate can be in lap joint with the upper end of the steel column embracing frame, and the height of the frame beam and the flatness of the flange can be adjusted through the adjusting bolts so that the bolt holes of the web of the frame beam can directly face the bolt holes of the connecting plate. According to the device, the steel frame beam can be rapidly placed between the steel frame columns, the falling speed is increased, and then the lifting hook or the clamping ring is unfastened for next lifting.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel frame structure installation, and in particular relates to a temporary installation auxiliary fixing structure for a rotatable steel structure frame beam. Background Art

[0002] As a structural form that is manufactured in a factory and assembled on site, steel structure naturally has the characteristics of "assembly". Steel frame structure has a high degree of factory prefabrication and fast on-site installation speed. It is mostly suitable for public building structural systems such as office buildings, schools, and commercial buildings. Typical beam-column nodes often use bolt-welded rigid connection nodes with connecting plates or cantilever short beams. In practice, the connection sequence should be to weld the upper and lower flanges after the initial tightening of high-strength bolts, and finally tighten the bolts. Therefore, whether the bolts can pass through the node holes smoothly directly affects the speed and installation accuracy of the steel components.

[0003] The cantilever short beam bolt-welded spliced ​​beam-column node is adopted. When the steel beam is in place, the cantilever section can provide a straddling position for the installer. The overall operating posture is comfortable, and the position can be fine-tuned by holding the steel beam.

[0004] However, for the connecting plate-type beam-column nodes, installers have no reliable foothold and can usually only climb temporary ladders fixed on the steel columns. The operating space and posture are limited, and they can often only passively align the connecting bolt holes through fine-tuning of the lifting equipment. This process can only be completed under the command of a signalman, and the lifting equipment can only be unloaded and unhooked after the bolts at some nodes have been inserted and the steel beams are firmly fixed. Therefore, the installation period is relatively long. Utility Model Content

[0005] In order to solve at least one of the above technical problems existing in the prior art, the utility model provides a temporary installation auxiliary fixing structure for a rotatable steel structure frame beam.

[0006] The utility model is implemented by the following technical solutions: a temporary installation auxiliary fixing structure of a rotatable steel structure frame beam, including a steel column holding frame and a flange plate clamp;

[0007] The steel column holding frame is tightly held at the frame column and is located above the connecting plate on the frame column;

[0008] The flange plate clamp is mounted on one end of the frame beam, and a lap plate is extended outward from the upper end of the flange plate clamp, and a vertical adjusting bolt is threadedly connected to the end of the lap plate;

[0009] The lap plate can be overlapped on the upper end of the steel column frame, and the height and flange flatness of the frame beam can be adjusted by adjusting the bolts so that the bolt holes of the web of the frame beam are aligned with the bolt holes of the connecting plate.

[0010] Preferably, the steel column frame includes a U-shaped plate, a flexible anti-slip rubber pad, fastening bolts and an end plate;

[0011] A flexible anti-skid rubber pad is placed on the inner side of the U-shaped plate and fixed by rivets. The two U-shaped plates are surrounded by a shape that matches the cross-section of the frame column. The ends of the U-shaped plates are fixedly connected with end plates. The end plates at the connection of the two U-shaped plates are butt-jointed and tightened and fixed by fastening bolts, so that the steel column frame is fixed on the frame column.

[0012] Preferably, the flange plate clip comprises a lap plate, a hook plate clip and a connecting bolt;

[0013] A long strip groove matching the upper flange of the frame beam is provided in the middle of one side of the hook-shaped plate card. A lap plate is connected to the upper end of the hook-shaped plate card away from the groove through a vertical plate. The vertical plate and the lap plate form an L-shaped structure. The two hook-shaped plate cards are respectively inserted from both sides of the web of the frame beam and connected by connecting bolts.

[0014] Preferably, the length of the side above the slot of the hook-shaped plate is greater than the side below the slot, and the bottom of the slot abuts against the upper flange plate of the frame beam.

[0015] Preferably, the hook-shaped plate is positioned away from the bolt holes of the web of the frame beam; the outer end of the lap plate is flush with the adjacent end of the frame beam; and a rib is provided at the inner corner connection between the vertical plate and the lap plate.

[0016] Preferably, both hook-shaped plate clips are provided with oblong holes, and the oblong holes correspond to the positions of the connecting bolts.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] This device can quickly place the steel frame beam between the steel frame columns, increase the placement speed, and then release the hook or clamp for the next lift. It can improve the turnover efficiency of vertical lifting equipment, not only shorten the on-site installation period of the steel frame structure, but also save the rental period of the vertical lifting equipment, bringing great benefits to saving construction costs. This temporary installation system can be further promoted to the temporary fixation of components that require long vertical transportation equipment and high installation accuracy during the installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 1 is a top view of the steel column frame of this embodiment;

[0021] Figure 2is a side view of the steel column frame of this embodiment;

[0022] Figure 3 is a three-dimensional schematic diagram of the flange board of this embodiment (first viewing angle);

[0023] Figure 4 is a three-dimensional schematic diagram of the flange board of this embodiment (second viewing angle);

[0024] Figure 5 is a front view of the hook-shaped board of this embodiment;

[0025] Figure 6 Schematic diagram of the installation position of the steel column frame of this embodiment;

[0026] Figure 7 Schematic diagram of the installation steps of the flange board of this embodiment;

[0027] Figure 8 Schematic diagram of the installation of the adjusting bolt of this embodiment;

[0028] Fig. 9 It is a schematic diagram of the initial lifting and positioning of the steel beams of this embodiment.

[0029] In the figure: 1.1-U-shaped plate; 1.2-flexible anti-skid rubber pad; 1.3-fastening bolts; 1.4-end plate; 1.5-rivet; 2.1-lap plate; 2.2-hook-shaped plate; 2.3-connecting bolts; 2.4-vertical plate; 3.1-adjusting bolts; 4-frame column; 5-frame beam; 6-connecting plate. DETAILED DESCRIPTION

[0030] Combined with the drawings in the embodiments of the utility model, the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented, so they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention. It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0032] The utility model provides an embodiment:

[0033] A temporary installation auxiliary fixing structure for a revolving steel structure frame beam, comprising a steel column frame and a flange plate clamp;

[0034] The steel column holding frame is tightly held at the frame column and is located above the connecting plate on the frame column;

[0035] The flange plate is clamped at one end of the frame beam, and a lap plate 2.1 is extended outward from the upper end of the flange plate, and a vertical adjustment bolt 3.1 is threadedly connected to the end of the lap plate 2.1;

[0036] The lap plate 2.1 can be overlapped on the upper end of the steel column frame, and the height and flange flatness of the frame beam can be adjusted by adjusting the bolts 3.1 so that the bolt holes of the web of the frame beam are aligned with the bolt holes of the connecting plate.

[0037] In this embodiment, the steel column frame includes a U-shaped plate 1.1, a flexible anti-skid rubber pad 1.2, a fastening bolt 1.3 and an end plate 1.4; the flexible anti-skid rubber pad 1.2 is arranged on the inner side of the U-shaped plate 1.1 and fixed by a rivet 1.5, and the two U-shaped plates 1.1 are surrounded by a shape matching the cross-section of the frame column, and the end of the U-shaped plate 1.1 is fixedly connected with an end plate 1.4, and the end plates 1.4 at the connection of the two U-shaped plates 1.1 are butt-jointed and fixed by fastening bolts 1.3, so that the steel column frame is fixed on the frame column.

[0038] The frame column is a steel column, and the U-shaped plate 1.1 is connected by 10# channel steel. The width and specifications of the steel column frame are determined comprehensively according to the cross-sectional size of the steel column involved in the actual project. The cross-sectional design of the steel column is generally between 300mm and 800mm, and the width of the frame can be cut according to the 100mm modulus. The 1#0 channel steel is welded into a U shape, and the end plates are welded at the ends of the two short sides. The contact surface between the inner side of the channel steel and the steel column is fixed with a non-slip flexible rubber pad with rivets, which increases the friction between the steel column frame and the steel column on the one hand, and avoids scratching the paint film of the steel column on the other hand.

[0039] In this embodiment, the flange plate clip includes a lap plate 2.1, a hook-shaped plate clip 2.2 and a connecting bolt 2.3; a long strip groove matching the upper flange of the frame beam is provided in the middle of one side of the hook-shaped plate clip 2.2, and the lap plate 2.1 is connected to the upper end of the hook-shaped plate clip 2.2 away from the groove through a vertical plate 2.4, and the vertical plate 2.4 and the lap plate 2.1 form an L-shaped structure. The two hook-shaped plate clips 2.2 are respectively inserted from both sides of the web of the frame beam and are connected by connecting bolts 2.3.

[0040] The length of the side above the notch of the hook-shaped plate 2.2 is greater than the side below the notch, and the bottom of the notch abuts against the upper flange plate of the frame beam; the width of the notch is determined according to the upper flange of the frame beam, and the calculation formula is: the thickest thickness of the upper flange of the frame beam + 2mm, and the length of the lap plate 2.1 is determined according to the width of the connecting plate;

[0041] The position of the hook-shaped plate clip 2.2 is set to avoid the position of the bolt hole of the web plate of the frame beam; the outer end of the lap plate 2.1 is flush with the end of the adjacent frame beam; a rib is set at the inner corner connection between the vertical plate 2.4 and the lap plate 2.1. Both hook-shaped plate clips 2.2 are provided with oblong holes, which correspond to the positions of the connecting bolts 2.3.

[0042] Installation steps:

[0043] Before lifting the steel column, according to the node position, the two parts of the frame are first connected by fastening the end plates with M20 high-strength bolts, and then clamped on the steel column. The steel column frame is set about 250mm above the node plate.

[0044] The frame beam is a steel beam. Before lifting the steel beam, install the left and right flange plates on the upper flange of the steel beam on the ground. Since the hook-shaped plate has an oblong hole, the left and right positions of the plate can be adjusted to ensure that the root of the groove is tightly attached to the side of the flange and the flange is clamped. Insert the fastening bolts and tighten them. During installation, control the tip edge of the lap plate to align with the end of the steel beam. At the same time, the clamping point of the flange plate should avoid the connecting plate to ensure that the steel beam does not collide with the connecting plate during the process of being lifted and put into place.

[0045] Screw the M16 adjusting bolt into the screw hole on the lap plate, and extend the screw rod about 10mm out of the bottom of the lap plate in advance;

[0046] After the steel beam is lifted, when the height of the lap plate exceeds the upper surface of the frame, the steel beam is slowly moved into place from the side of the steel column and fits with the connecting plate. At this time, the top of the lap plate is supported on the upper surface of the steel column frame. The steel beam is initially in place, the lifting machinery is unloaded and the hook is removed to proceed to the next lifting process.

[0047] Subsequently, the height of the steel beam end and the flatness of the flange are adjusted by tightening the adjusting bolts, and the bolt holes of the steel beam web and the connecting plate are aligned to allow the bolts to be inserted smoothly. After all the node bolts are installed and initially tightened, loosen the adjusting bolts and the connecting bolts of the flange plate, withdraw the fastening bolts of the steel column frame, and remove the device.

[0048] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A temporary installation auxiliary fixing structure for a recyclable steel structure frame beam, characterized in that: Including steel column frame and flange plate; The steel column holding frame is tightly held at the frame column and is located above the connecting plate on the frame column; The flange plate clamp is mounted on one end of the frame beam, and a lap plate (2.1) extends outward from the upper end of the flange plate clamp, and a vertical adjustment bolt (3.1) is threadedly connected to the end of the lap plate (2.1); The lap plate (2.1) can be overlapped on the upper end of the steel column frame, and the height and flange flatness of the frame beam can be adjusted by adjusting the bolts (3.1) so that the bolt holes of the web of the frame beam are aligned with the bolt holes of the connection plate.

2. The temporary installation auxiliary fixing structure of a rotatable steel structure frame beam according to claim 1 is characterized in that: The steel column frame includes a U-shaped plate (1.1), a flexible anti-skid rubber pad (1.2), a fastening bolt (1.3) and an end plate (1.4); A flexible anti-skid rubber pad (1.2) is placed on the inner side of the U-shaped plate card (1.1) and fixed by a rivet (1.5); the two U-shaped plate cards (1.1) are surrounded by a shape matching the cross section of the frame column; the ends of the U-shaped plate cards (1.1) are fixedly connected with end plates (1.4); the end plates (1.4) at the connection of the two U-shaped plate cards (1.1) are butt-jointed and are compressed and fixed by tightening bolts (1.3), so that the steel column frame is fixed on the frame column.

3. The temporary installation auxiliary fixing structure of a rotatable steel structure frame beam according to claim 1 is characterized in that: The flange plate clamp comprises a lap plate (2.1), a hook plate clamp (2.2) and a connecting bolt (2.3); A long strip notch matching the upper flange of the frame beam is arranged in the middle of one side of the hook-shaped plate clip (2.2); a lap plate (2.1) is connected to the upper side of one end of the hook-shaped plate clip (2.2) away from the notch via a vertical plate (2.4); the vertical plate (2.4) and the lap plate (2.1) form an L-shaped structure; two hook-shaped plate clips (2.2) are respectively inserted from both sides of the web of the frame beam and are connected via connecting bolts (2.3).

4. The temporary installation auxiliary fixing structure of a rotatable steel structure frame beam according to claim 3 is characterized in that: The length of the side above the notch of the hook-shaped plate clamp (2.2) is greater than the side below the notch, and the bottom of the notch abuts against the upper flange plate of the frame beam.

5. The temporary installation auxiliary fixing structure of a rotatable steel structure frame beam according to claim 3 is characterized in that: The hook-shaped plate clamp (2.2) is arranged to avoid the bolt hole of the web of the frame beam; the outer end of the lap plate (2.1) is flush with the adjacent end of the frame beam; and a rib is arranged at the inner corner connection between the vertical plate (2.4) and the lap plate (2.1).

6. The temporary installation auxiliary fixing structure of a rotatable steel structure frame beam according to claim 3 is characterized in that: The two hook-shaped plate clamps (2.2) are both provided with oblong holes, and the oblong holes correspond to the positions of the connecting bolts (2.3).

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