CN104358405A - Heavy load full formwork support system - Google Patents

Abstract

The invention provides a heavy-duty full hall formwork support system, which includes multiple vertical poles and multiple horizontal poles; the vertical poles are composed of steel pipes with a certain length modulus, circular end plates, reinforcing sleeves, fixed slots, and sliding slots , the circular end plate is fixed on both ends of the steel pipe, and there are bolt holes on the circular end plate; the reinforcing sleeve is welded at the joint between the vertical bar and the horizontal bar; the fixing slot is welded on one side of the reinforcing sleeve, and the sliding slot Located between the circular end plate and the fixed slot, it can slide along the pole; the fixed slot and the sliding slot both include four slots, the slots are evenly arranged along the ring and correspond up and down, and are used to connect the vertical and horizontal Four horizontal rods; each horizontal rod is composed of a steel pipe and an inserting plate at the end of the steel pipe, and the inserting plate is welded to both ends of the steel pipe. The slot fits into the clipboard at the end of the horizontal rod. The invention has the advantages of safety and reliability, convenient installation and high bearing capacity.

Description

A heavy-duty full hall formwork support system

Technical field

The invention relates to a temporary support structure for civil engineering construction, and more specifically relates to a novel heavy-duty full hall formwork support system.

Background technique

my country's infrastructure construction is in a period of rapid development, the scale of civil engineering is getting larger and larger, and more and more temporary support structures are used as auxiliary facilities, especially the heavy-duty temporary support structures used in subway and bridge construction. At present, there are three types of temporary support structures commonly used in engineering: fastener type, bowl button type and socket type. During the use of the above three supporting structures, some shortcomings are exposed:

1) Although the fastener-type steel pipes are flexible in erection and removal, the quality and tightening torque of the fasteners have a significant impact on the bearing capacity of the fastener-type steel pipe support structure, and it is difficult to control the torque and quality of the fasteners in the actual application process, resulting in erection defects. It reduces the structural bearing capacity and induces engineering accidents from time to time; secondly, the fastener nodes are easy to lose, which increases the construction cost;

2) The joint stiffness of the bowl-button and socket-type steel pipe support structures is much higher than that of the fastener type, but the joint stiffness is still weak, especially the bending bearing capacity of the joints is weak; heavy loads can easily lead to severe plasticity in the joint area Deformation and dents reduce the durability and safety of components.

Contents of the invention

The present invention aims at providing a heavy-duty formwork support structure that is safe, reliable, convenient to set up and high in bearing capacity, aiming at the deficiency of the current construction temporary support structure. Technical scheme of the present invention is:

A heavy-duty full hall formwork support system, including a plurality of vertical rods (1), a plurality of horizontal rods (2), an adjustable base (3), an adjustable jacking (4), an adjustable base (3) and a The vertical poles are connected, each vertical pole is connected by butt joint, the vertical pole and the horizontal pole (2) in different directions are connected at the intersection, and the adjustable jacking bracket (3) is connected with the vertical pole on the top floor, so that Form a heavy-duty formwork support system;

The vertical rod (1) is composed of a steel pipe with a certain length modulus, a circular end plate, a reinforcing sleeve, a fixed slot, and a sliding slot. The circular end plate is fixed on both ends of the steel pipe, and the circular end plate There are bolt holes; the reinforcing sleeve is welded at the connection between the vertical rod and the horizontal rod; the fixing slot is welded on one side of the reinforcing sleeve, and the sliding slot is located between the circular end plate and the fixing slot, and can slide along the vertical rod ; Both the fixed slot (13) and the sliding slot (14) include four slots (17), the slots are evenly arranged along the ring and correspond up and down, and are used to connect four vertical and horizontal horizontal bars (2);

Each horizontal bar is composed of a steel pipe and an inserting plate at the end of the steel pipe, and the inserting plate is welded to both ends of the steel pipe;

The slot fits with the board at the end of the horizontal bar. The top of the fixed slot is slightly wider than the bottom, while the bottom of the sliding slot is slightly wider than the top. The board is made into a shape that is narrow at both ends and wide in the middle , so that the board is locked vertically by the slot.

Among them, when the vertical pole is connected with the vertical pole, the circular end plates at the ends of the adjacent vertical poles are first butt-jointed, and then bolted together; when the vertical pole is connected with the horizontal pole, the ends of the horizontal pole are sequentially connected The inserting plate is inserted into the corresponding slot of the pole fixing slot, and then the sliding slot is aligned with the inserting plate, and the inserting plate is inserted into the sliding slot, so that the horizontal bar and the vertical bar are connected together to form a structural system.

The beneficial effects of the present invention are:

1. The rigidity of the connection node between the vertical pole and the horizontal pole in the present invention is relatively large, which effectively improves the overall stability of the structure, improves the utilization rate of materials, and reduces the construction cost;

2. The mechanical connection is adopted between the vertical rod and the horizontal rod in the present invention, and the erection quality is easy to check with the naked eye, which can ensure the erection quality of the structure and improve safety.

3. In the present invention, the main nodes are all used as a part of the component, which avoids the loss of loose parts and reduces the construction cost.

4. The rigidity of the connection between the vertical bar and the horizontal bar in the present invention is relatively large, which can ensure the overall stability of the structure, so there is no need to set up scissors, which reduces the erection workload and improves the erection speed.

Description of drawings

Fig. 1 is a pole of the present invention;

Fig. 2 is the horizontal bar of the present invention;

Fig. 3 is the connection schematic diagram of vertical bar and horizontal bar of the present invention;

Fig. 4 is the slot schematic diagram of the present invention

Fig. 5 is the schematic diagram of the flange connection between the pole and the pole of the invention

Fig. 6 is a schematic diagram of the adjustable base of the present invention;

Fig. 7 is a schematic diagram of the adjustable bracket of the present invention;

Fig. 8 is a schematic diagram of connecting the casing of the pole and the pole of the invention

Fig. 9 is a diagram of the basic structural unit of the present invention.

In the figure, 1 pole, 11: flange, 12: reinforced sleeve, 13: fixed slot, 14: movable slot, 15: bolt, 16: socket, 17: socket, 2: horizontal bar, 21: Two-way plug, 3: Adjustable base chute, 31: Handle, 32: Bottom plate, 4: Adjustable bracket, 9: Connecting sleeve.

Detailed ways

Components such as vertical rods, horizontal rods, adjustable jacking brackets and adjustable bases in the present invention are all produced in batches in factories. The steel pipes used in the present invention are mainly straight seam electric welded steel pipes or steel pipes, the material is Q235 steel, and the steel pipe specification is P48.3×3.6; the casing specification at the node of the vertical pole is P58.3×5; and slide slots are made of steel castings.

The manufacturing process of the slot is completed in the factory. The mold is made according to the designed slot size and shape, the metal is melted, the mold is poured and the component is cast, and finally the slot is processed to complete.

When the project is processing the pole, first process the circular end plate at the end of the pole. The thickness of the end plate is 10mm, the diameter is 80mm, and 4 bolt holes with a diameter of 10mm are evenly set at 15mm from the edge; then P48.3 ×3.6 steel pipes are cut according to a certain modulus and length; at the joint between the vertical bar and the horizontal bar, a P58.3×5 sleeve with a length of 120mm is placed, and the sleeve and the vertical bar are welded together through the weld seam; then Slide the fixing slot to the side of the sleeve, the edge of the sleeve is basically flat with the edge of the fixing slot, leaving a little space for the welding seam, and weld the fixing slot and the sleeve together through the welding seam; then slide the sliding slot to the other end of the casing; finally, the processed circular end plates are welded to both ends of the pole to form the pole of the heavy-duty formwork support structure.

As shown in FIG. 2 , plugs 21 are welded at both ends of the horizontal bar 2 . The plug 21 is rolled from a steel plate and can be inserted into two slots up and down. The plug 21 can be designed to be narrower at both sides, which is wide in the middle, so that it is easier to insert into the socket on the slot.

As shown in FIG. 3 , the connection between the vertical pole 1 and the horizontal pole 2 is realized through a plug 21 welded on the horizontal pole 2 and a fixed slot 14 and a sliding slot 13 welded on the vertical pole 1 . Four through sockets 17 are evenly distributed around the fixed slot 14, so that the horizontal bar can be connected with the vertical bar in four directions. The plug interface is wide at the top and narrow at the bottom, which is convenient for locking after the plug is inserted. The structure of the sliding slot 13 is the same as that of the fixed slot 14, but the sliding slot 13 is not welded and fixed on the pole 1, but can move up and down along the pole. During the connection of the horizontal bar and the vertical bar, at first the plug 21 welded on the end of the horizontal bar 2 is inserted downward into the socket 17 of the fixed slot 14, and is tapped tightly with a hammer. After inserting the plug 21 of the horizontal bar 2 in each direction into the socket 17 of the fixed slot 14, hit the sliding slot 13 with a hammer, and insert the plug 16 on the sliding slot 13 from the upper part into the plug 21, so that the plug 21 is fixed The slot 14 and the sliding slot 13 are tightly buckled up and down, which can better transmit force and bending moment, and the rigidity of the node is strengthened, thereby increasing the stability of the structure. The disassembly of the socket and the plug only needs to hit the part where the plug 21 runs through the sockets 16, 17 with a hammer, which is very simple.

As shown in Figure 4, when the vertical poles are butt-connected, the circular end plates 11 at the ends of the vertical poles are first aligned, and the two end plates are bolted together with four bolts 8 to realize the connection between the vertical poles. In addition, the connection between the pole and the pole can also be connected through the sleeve shown in FIG. 8 . The sleeve connection is to process straight threads at both ends of the vertical rod 1, and the inner side of the matching connecting sleeve 9 is also processed with threads, and the ends of the two vertical rods are respectively tightened to the connecting sleeve 9 to complete the two vertical rods. Connection. If the vertical rod is too long and is not easy to rotate, the connecting sleeve 9 can be screwed into the lengthening thread of a vertical rod in advance, and then screwed into another vertical rod.

As shown in FIG. 5 and FIG. 6 , the bottom and top of the pole 1 can be provided with an adjustable base 3 and an adjustable bracket 4 respectively. The adjustable base 3 is made up of a screw rod, a handle 31 and a bottom plate 32 . One end of the screw rod is inserted into the vertical rod, and the other end stands on the bottom plate, and the height is adjusted by the handle. Adjustable bracket 4 is made up of screw rod, handle and top plate. The lower end of the screw rod is inserted into the vertical rod, and the upper end is connected to the top plate. The connection between the bolt and the pole can be covered with a steel pipe to increase the strength of the connection.

A heavy-duty template support structure can be formed through the above-mentioned butt joints between vertical poles, horizontal poles and horizontal poles, connections between horizontal poles and vertical poles, vertical poles and adjustable jacking, vertical poles and adjustable bases. .

Claims (2)

1. A support system for a heavy-duty full hall formwork, including multiple vertical poles (1), multiple horizontal poles (2), adjustable bases (3), adjustable jacking brackets (4), adjustable bases (3) and The vertical poles on the bottom floor are connected, and the vertical poles are connected by butt joints. The vertical poles and horizontal poles (2) in different directions are connected at the intersection, and the adjustable jacking bracket (3) is connected to the vertical poles on the top floor. , so as to form a heavy-duty formwork support system; The vertical rod (1) is composed of a steel pipe with a certain length modulus, a circular end plate, a reinforcing sleeve, a fixed slot, and a sliding slot. The circular end plate is fixed on both ends of the steel pipe, and the circular end plate There are bolt holes; the reinforcing sleeve is welded at the connection between the vertical rod and the horizontal rod; the fixing slot is welded on one side of the reinforcing sleeve, and the sliding slot is located between the circular end plate and the fixing slot, and can slide along the vertical rod ; Both the fixed slot (13) and the sliding slot (14) include four slots (17), the slots are evenly arranged along the ring and correspond up and down, and are used to connect four vertical and horizontal horizontal bars (2); Each horizontal bar is composed of a steel pipe and an inserting plate at the end of the steel pipe, and the inserting plate is welded to both ends of the steel pipe; The slot fits with the board at the end of the horizontal bar. The top of the fixed slot is slightly wider than the bottom, while the bottom of the sliding slot is slightly wider than the top. The board is made into a shape that is narrow at both ends and wide in the middle , so that the board is locked vertically by the slot. 2. The heavy-duty full hall formwork support system according to claim 1, characterized in that, when the vertical rods are docked with the vertical rods, the circular end plates at the ends of the adjacent vertical rods are first butted, and then bolted to the together; when connecting the vertical pole and the horizontal pole, insert the insert plate at the end of the horizontal pole into the corresponding slot of the vertical pole fixing slot in turn, then align the slide slot with the insert plate, and insert the insert plate into the slide slot Inside, the horizontal rods and vertical rods are connected together to form a structural system.