A hopper support beam and a method of manufacturing a hopper support beam

Abstract

This invention discloses a hopper support beam and its manufacturing method, belonging to the field of large silos and hoppers, and is mainly used for the installation of large hoppers. The technical problem to be solved by this invention is to provide a hopper support beam and its manufacturing method, comprising a first transverse steel plate, a second transverse steel plate, a first vertical steel plate, and a second vertical steel plate; the first vertical steel plate is positioned between the first and second transverse steel plates, forming an "I" shape; two second vertical steel plates are respectively positioned at the left and right ends of the second transverse steel plate, forming an "H" shape; second stirrups are positioned between the first transverse steel plate and the second vertical steel plate; the first transverse steel plate, the first stirrup, the second vertical steel plate, and the second stirrup enclose a frame structure; the frame structure is filled with concrete. The hopper support beam provided by this invention can improve the load-bearing capacity and stability of the hopper support beam, and enhance its bending, torsional, and shear stiffness.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of large-scale silos and hoppers, in particular to a hopper support beam and a manufacturing method thereof. BACKGROUND

[0002] In industrial buildings, large-scale silos and hoppers are often encountered. Silos, including steel structure silos and reinforced concrete silos, are generally set on the ground due to their heavy weight. Hoppers are usually made of steel structure, and the lower part needs to be connected with the process system, so they are often supported on or suspended from the structural floor. For example, steel coal hoppers, steel aggregate hoppers, and steel ash hoppers all need to be set on or suspended from the structural floor through hopper support beams.

[0003] Due to the large size and heavy weight of steel hoppers, concrete beams as shown in Figure 1 or steel beams as shown in Figure 2 are often used as support beams. When a concrete structure hopper support beam as shown in Figure 1 is used, the concrete hopper support beam uses a concrete beam 11 as a bending member, with the lower part in tension and the upper part in compression. Due to the large load of the hopper, the bending moment at the center of the concrete beam 11 is large, and in order to ensure that the hopper does not deform or reduces the deformation during use, the height of the concrete beam 11 is large. In the connection between the hopper and the concrete beam 11, a large number of tension anchor bolts 12 need to be pre-buried when the concrete beam 11 is cast on site. The force transmission between the steel hopper and the concrete beam is completed by the tension anchor bolts 12. However, due to the large cross-section and heavy weight of the concrete beam 11, the height of the beam cross-section is high, which requires a high installation height for the steel hopper, otherwise the installation cannot be completed. At the same time, the construction quality of the connection between the steel hopper and the concrete beam 11 is not easy to guarantee, and in actual engineering, the steel structure and the concrete structure are two materials of different properties, and the construction quality of the tensile connection between the two materials is not easy to guarantee, which leads to weak points at the connection between the steel hopper and the concrete beam 11, resulting in engineering accidents. When a steel structure hopper support beam as shown in Figure 2 is used, the steel structure hopper support beam uses a steel beam 21 as a bending member, as shown in Figure 2As shown in the figure, the H-shaped steel is used as the steel beam, the lower flange of the beam is in tension, and the upper flange of the beam is in compression. Due to the large load of the hopper, the bending moment of the steel beam 21 at the middle span is large. In order to ensure that the hopper does not deform or reduce the deformation amount during use, the required steel structure hopper beam height is large and the flange plate is thick. When installing the steel hopper, a high height is required, otherwise the installation cannot be completed. Since the steel beam 21 is an open section and the torsional stiffness of the steel beam 21 is small, more steel stiffening plates 22 and steel sealing plates 23 need to be added to the hopper steel beam 21. Since the steel support beam of the steel structure generally uses welded H-shaped steel, which is an open section, the overall stability is poorer than that of the concrete structure beam, and the torsional bearing capacity of the steel support beam of the steel structure is poor. The side of the beam cannot be used as part of the coal hopper, and additional sealing plates 23 are required. At the same time, when the material in the hopper is offset, the steel structure beam is prone to torsional damage, and the steel structure support beam has a large amount of steel and high cost, which is poor in economy. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a hopper support beam and a manufacturing method thereof, mainly used for the installation of large hoppers, to achieve high bearing capacity, tight connection between the steel hopper, and large bending, torsional and shear stiffness.

[0005] The hopper support beam disclosed by the present application comprises a steel beam framework and concrete. The steel beam framework comprises a first horizontal steel plate, a second horizontal steel plate, a first vertical steel plate and a second vertical steel plate. The first horizontal steel plate is arranged at the upper end of the first vertical steel plate, and the second horizontal steel plate is arranged at the lower end of the first vertical steel plate and parallel to the first horizontal steel plate. The first horizontal steel plate, the second horizontal steel plate and the first vertical steel plate form an I-shaped structure. Two second vertical steel plates are arranged at the left and right ends of the second horizontal steel plate respectively, and the two second vertical steel plates and the second horizontal steel plate form an H-shaped structure. First stirrups perpendicular to the first horizontal steel plate are arranged below the left and right ends of the first horizontal steel plate. One end of each first stirrup is connected to the lower end of the first horizontal steel plate, and the other end is connected to the inner side of the upper end of the second vertical steel plate. Second stirrups parallel to the second horizontal steel plate are arranged between the two second vertical steel plates below the second horizontal steel plate. The first horizontal steel plate, the first stirrups, the second vertical steel plates and the second stirrups form a frame structure. A formwork is arranged outside the frame structure, and the formwork is filled with concrete.

[0006] Further, the first vertical steel plate is arranged at the midpoint position of the first horizontal steel plate and the second horizontal steel plate, and the second horizontal steel plate is arranged at the midpoint position of the two second vertical steel plates.

[0007] Further, the two second vertical steel plates and the second horizontal steel plate can be replaced by H-shaped steel.

[0008] Further, the first vertical steel plate is provided with first shear keys; a plurality of the first shear keys are arranged at intervals along the vertical direction of the first vertical steel plate; the second horizontal steel plate is provided with second shear keys; a plurality of the second shear keys are arranged at intervals along the horizontal direction of the second horizontal steel plate.

[0009] Further, the first stirrup is provided with waist stirrups; a plurality of the waist stirrups are arranged at intervals along the vertical direction of the first stirrup.

[0010] Further, the second stirrup is provided with longitudinal stirrups; a plurality of the longitudinal stirrups are arranged at intervals along the horizontal direction of the second stirrup.

[0011] Further, the second vertical steel plate is connected with a steel hopper wall outside.

[0012] The application further provides a manufacturing method of the hopper support beam, comprising

[0013] Step one: welding a steel beam framework; the steel beam framework comprises a first horizontal steel plate, a second horizontal steel plate, a first vertical steel plate and a second vertical steel plate; the first horizontal steel plate is arranged at the upper end of the first vertical steel plate, the second horizontal steel plate is arranged at the lower end of the first vertical steel plate and is parallel to the first horizontal steel plate, and the first horizontal steel plate, the second horizontal steel plate and the first vertical steel plate form an I shape; two second vertical steel plates are respectively arranged at the left and right ends of the second horizontal steel plate, and the two second vertical steel plates and the second horizontal steel plate form an H shape;

[0014] Step two: arranging stirrups; the stirrups comprise a first stirrup and a second stirrup; the first stirrup is arranged vertically at the left and right ends of the first horizontal steel plate, one end of the first stirrup is connected with the lower end of the first horizontal steel plate, and the other end is connected with the inner side of the upper end of the second vertical steel plate; the second stirrup is arranged between the two second vertical steel plates and below the second horizontal steel plate and is parallel to the second horizontal steel plate;

[0015] Step three: manufacturing a formwork; the formwork is manufactured based on the model of the frame structure enclosed by the first horizontal steel plate, the first stirrup, the second vertical steel plate and the second stirrup;

[0016] Step four: pouring concrete; the steel beam framework with the manufactured formwork is poured with concrete;

[0017] Step five: hoisting and installing.

[0018] Further, the step one and the step two further comprise welding shear keys; the shear keys comprise first shear keys and second shear keys; the first shear keys are arranged at intervals along the vertical direction of the first vertical steel plate; and the second shear keys are arranged at intervals along the horizontal direction of the second horizontal steel plate.

[0019] Furthermore, between step two and step three, longitudinal reinforcement and web reinforcement are also arranged. The web reinforcement is arranged at intervals along the vertical direction of the first stirrup, and the longitudinal reinforcement is arranged at intervals along the horizontal direction of the second stirrup.

[0020] The beneficial effects of this invention are as follows: Using the hopper support beam provided by this invention, the steel beam frame, stirrups, longitudinal reinforcement, and web reinforcement are integrated into a single structure through concrete pouring. This allows the hopper support beam to fully utilize the H-shaped steel frame composed of the second transverse steel plate and the second vertical steel plate on the lower flange of the steel beam frame under tension, and the first transverse steel plate, the first vertical steel plate, the second transverse steel plate, and the upper concrete under compression. This improves the load-bearing capacity, stability, seismic performance, and ductility of the hopper support beam, strengthens its bending, torsional, and shear stiffness, and because the concrete filling integrates the steel beam frame and other structures, the sides of the hopper support beam can be directly used as part of the steel hopper without the need for additional sealing plates, saving costs. Furthermore, the manufacturing method of the hopper support beam provided by this invention allows it to be prefabricated in a factory or cast on-site. Prefabrication in the factory better ensures the quality of component forming, speeds up construction, and saves labor costs. Attached Figure Description

[0021] Figure 1 Schematic diagram of a traditional concrete hopper support beam structure;

[0022] Figure 2 Schematic diagram of a traditional steel hopper support beam structure;

[0023] Figure 3 : A schematic diagram of the hopper support beam structure of this application;

[0024] Reference numerals: 11-Concrete beam; 12-Tension anchor bolt; 21-Steel beam; 22-Stiffening plate; 23-Sealing plate; 3-Steel hopper wall; 4-Concrete; 5-Steel beam frame; 51-First transverse steel plate; 52-Second transverse steel plate; 53-First vertical steel plate; 54-Second vertical steel plate; 61-First stirrup; 62-Second stirrup; 63-First shear key; 64-Second shear key; 65-Web reinforcement; 66-Longitudinal reinforcement; 7-Formwork. Detailed Implementation

[0025] The present invention will be further described below.

[0026] The application provides a hopper support beam, which is mainly used for installation of a large steel hopper and comprises a steel beam framework 5 and concrete 4, wherein the steel beam framework 5 comprises a first horizontal steel plate 51, a second horizontal steel plate 52, a first vertical steel plate 53 and a second vertical steel plate 54; the first horizontal steel plate 51 is arranged at the upper end of the first vertical steel plate 53, the second horizontal steel plate 52 is arranged at the lower end of the first vertical steel plate 53 and is parallel to the first horizontal steel plate 51, and the first horizontal steel plate 51, the second horizontal steel plate 52 and the first vertical steel plate 53 form a I-shaped structure; two second vertical steel plates 54 are arranged at the left and right ends of the second horizontal steel plate 52 respectively, and the two second vertical steel plates 54 and the second horizontal steel plate 52 form an H-shaped structure; a first stirrup 61 which is perpendicular to the first horizontal steel plate 51 is further arranged below the left and right ends of the first horizontal steel plate 51, one end of the first stirrup 61 is connected with the lower end of the first horizontal steel plate 51, and the other end is connected with the inner side of the upper end of the second vertical steel plate 54; a second stirrup 62 which is below the second horizontal steel plate 52 and parallel to the second horizontal steel plate 52 is arranged between the two second vertical steel plates 54; the first horizontal steel plate 51, the first stirrup 61, the second vertical steel plate 54 and the second stirrup 62 form a frame structure; a formwork 7 is arranged outside the frame structure, and the formwork 7 is filled with the concrete 4.

[0027] As Figure 3As shown, the steel beam skeleton 5 comprises a first transverse steel plate 51, a second transverse steel plate 52, a first vertical steel plate 53 and a second vertical steel plate 54, the first transverse steel plate 51 and the second transverse steel plate 52 are arranged in parallel, the first vertical steel plate 53 is arranged vertically between the first transverse steel plate 51 and the second transverse steel plate 52, so that the first transverse steel plate 51, the second transverse steel plate 52 and the first vertical steel plate 53 form an I shape, the upper flange of the steel beam skeleton 5 is I-shaped, because the lower part of the first vertical steel plate 53 is provided with the second transverse steel plate 52, the pressure borne by the first transverse steel plate 51 can be transmitted to the second transverse steel plate 52, which is shared by the second transverse steel plate 52, so that the compressive capacity of the upper flange of the steel beam skeleton 5 is higher, the left and right ends of the second transverse steel plate 52 are provided with two second vertical steel plates 54 which are parallel to each other, so that the two second vertical steel plates 54 and the second transverse steel plate 52 form an H shape, the lower flange of the steel beam skeleton 5 is H-shaped, by adding the second vertical steel plates 54 at the left and right ends of the second transverse steel plate 52, the tension borne by the second transverse steel plate 52 can be shared by the two second vertical steel plates 54, and because the second vertical steel plate 54 is vertically arranged, it has good tensile strength, so that the bending capacity of the lower flange of the steel beam skeleton 5 is higher, and the bending and torsional stiffness is better; a first stirrup 61 is arranged between the first transverse steel plate 51 and the second vertical steel plate 54, the first stirrup 61 connects the upper part of the first transverse steel plate 51 and the second vertical steel plate 54, so that the compression zone and the tension zone work together, the compressive and tensile strength of the first transverse steel plate 51 and the second vertical steel plate 54 is strengthened, the deformation of the left and right ends of the upper part of the first transverse steel plate 51 due to excessive compression is reduced, and the first stirrup 61 also provides mounting points for the later added waist stirrup 65, and supports the two sides of the hopper support beam, ensures that the relative position of the first transverse steel plate 51 and the second vertical steel plate 54 does not deviate after pouring the concrete 4, and improves the stiffness of the hopper support beam; a second stirrup 62 is arranged between the two second vertical steel plates 54; the lower ends of the two second vertical steel plates 54 are connected together by the second stirrup 62, which can not only strengthen the tensile capacity of the lower part of the second vertical steel plate 54 and reduce the deformation of the lower ends of the two second vertical steel plates 54 due to excessive tension, but also ensure the installation position of the second vertical steel plate 54, and the position of the second vertical steel plate 54 will not deviate after pouring the concrete 4, and also provides mounting points for the later added longitudinal reinforcement 66;The first stirrup 61 and the second stirrup 62 are arranged in this way, so that the first transverse steel plate 51, the first stirrup 61, the second vertical steel plate 54 and the second stirrup 62 form a frame structure, the frame structure is provided with a formwork 7 matched with the size of the frame structure, the formwork 7 completely contains the steel beam framework 5, the first stirrup 61 and the second stirrup 62, the formwork 7 is filled with the concrete 4, the concrete 4 fills the entire formwork 7, and the steel beam framework 5, the first stirrup 61 and the second stirrup 62 are completely located in the concrete 4, which improves the strength of the concrete 4 and the connection tightness of the steel beam framework 5, the first stirrup 61 and the second stirrup 62.

[0028] The steel beam framework 5, the stirrup and other structures are formed into an integrated structure by pouring the concrete 4, so that the hopper support beam can fully utilize the H-shaped steel frame composed of the lower flange second transverse steel plate 52 and the second vertical steel plate 54 of the steel beam framework 5 and the lower concrete 4 in tension, and the upper flange first transverse steel plate 51, the first vertical steel plate 53, the second transverse steel plate 52 and the upper concrete 4 in compression, thereby improving the carrying capacity, stability, anti-seismic performance and ductility of the hopper support beam, strengthening the bending resistance, torsional resistance and shearing stiffness of the hopper support beam, and directly using the side of the hopper support beam as a part of the steel hopper without additional sealing plates, thereby saving costs.

[0029] In order to avoid deformation of the steel beam framework 5 due to uneven stress on the left and right sides of the hopper support beam after the steel hopper is installed, affecting the normal use of the hopper support beam, as shown in Figure 3 The first vertical steel plate 53 is arranged at the midpoint position of the first transverse steel plate 51 and the second transverse steel plate 52, and the second transverse steel plate 52 is arranged at the midpoint position of the two second vertical steel plates 54, and the steel material framework is connected in a symmetrical arrangement, so that the hopper support beam is uniformly stressed on the left and right sides when the steel hopper is arranged on both sides of the hopper support beam, thereby ensuring the service life.

[0030] In order to ensure the bending performance of the steel beam framework 5 below and avoid instability of the connection between the second vertical steel plate 54 and the second transverse steel plate 52 due to excessive weight of the steel hopper, as shown in Figure 3 The two second vertical steel plates 54 and the second transverse steel plate 52 can be replaced by H-shaped steel, and the inverted H-shaped steel is arranged below the first vertical steel plate, which has the same effect as the second vertical steel plate 54 and the second transverse steel plate 52, and the bending carrying capacity of the H-shaped steel is higher, and the bending and torsional stiffness is better.

[0031] In order to strengthen the shearing resistance of the hopper support beam and avoid deformation or failure to use due to excessive weight of the installed steel hopper, as shown in Figure 3As shown, the first vertical steel plate 53 is provided with a first shear key 63; a plurality of first shear keys 63 are arranged in the vertical direction of the first vertical steel plate 53; the second horizontal steel plate 52 is provided with a second shear key, and a plurality of second shear keys are arranged in the horizontal direction of the second horizontal steel plate 52; by arranging a plurality of first shear keys 63 perpendicular to the first vertical steel plate 53 in the vertical direction of the first vertical steel plate 53, the shear resistance of the first vertical steel plate 53 is strengthened, so that the first vertical steel plate 53 does not shear due to excessive length and excessive compression at the upper part, and the hopper support beam upper part is not unstable, cannot continue to be used, and has a safety hazard; by arranging a plurality of second shear keys perpendicular to the second horizontal steel plate 52 in the horizontal direction below the second horizontal steel plate 52, the shear resistance of the second horizontal steel plate 52 is strengthened, so that the second horizontal steel plate 52 does not deform due to excessive stress on the two sides of the second vertical steel plate 54, and the hopper support beam lower part is not unstable, cannot continue to be used, and has a safety hazard; the above-mentioned shear key can be a thicker channel steel or I-beam welded vertically at the corresponding position, and as a preferred mode, anchor shear is used in the present application, which is fast and convenient to install and has low cost.

[0032] In order to avoid the hopper support beam being too high and the steel beam skeleton 5 being under excessive pressure, causing the steel beam skeleton 5 to displace, the installation size to deviate, the bonding force between the steel beam skeleton 5 and the concrete 4 to be affected, and the durability of the hopper support beam to be affected, such as Figure 3 As shown, the first stirrup 61 is provided with a waist muscle 65, and a plurality of waist muscles 65 are arranged in the vertical direction of the first stirrup 61; by arranging the waist muscle 65, the stiffness of the steel beam skeleton 5 can be enhanced, and the shrinkage cracks of the concrete 4 caused by temperature changes can be constrained, and the development of the upper tensile zone cracks of the hopper support beam can be reduced, and the carrying capacity of the hopper support beam can be improved; it should be noted that the waist muscles 65 on the two first stirrups 61 are symmetrically arranged to ensure that the hopper support beam is under average stress.

[0033] In order to ensure that the second stirrup 62 does not deform greatly when the lower part of the hopper support beam is in tension, so that cracks are generated in the lower part of the hopper support beam concrete 4, thereby affecting the stress performance of the hopper support beam compression zone concrete 4; as Figure 3 As shown, the second stirrup 62 is provided with a longitudinal muscle 66, and a plurality of longitudinal muscles 66 are arranged in the horizontal direction of the second stirrup 62; the longitudinal muscle 66 can not only reduce the deformation amount of the second stirrup 62 caused by external stress, but also improve the tensile performance of the lower part of the hopper support beam, and at the same time constrain the lower part of the hopper support beam concrete 4 to avoid generating too many cracks and affecting the normal use and carrying capacity of the hopper support beam.

[0034] To ensure normal use of the steel hopper after installation, the steel hopper will not cause the support beam of the hopper to be damaged due to excessive weight of the steel hopper, as shown in Figure 3 The second vertical steel plate 54 is connected with a steel hopper wall outside, the steel hopper wall is provided with a hole, the steel hopper wall and the second vertical steel plate 54 are continuously welded, and the hole in the steel hopper wall is welded with the hole in the second vertical steel plate 54 to ensure the stability of the connection; in addition, the steel hopper wall and the second vertical steel plate 54 can also be connected by high-strength bolts, so that the steel hopper is stably installed on the support beam of the hopper.

[0035] The application also provides a manufacturing method of the support beam of the hopper, which is used to manufacture the support beam of the hopper, and comprises the following steps:

[0036] Step one: welding the steel beam skeleton 5; the steel beam skeleton 5 comprises a first horizontal steel plate 51, a second horizontal steel plate 52, a first vertical steel plate 53 and a second vertical steel plate 54; the first horizontal steel plate 51 is arranged at the upper end of the first vertical steel plate 53, the second horizontal steel plate 52 is arranged at the lower end of the first vertical steel plate 53 and is parallel to the first horizontal steel plate 51, and the first horizontal steel plate 51, the second horizontal steel plate 52 and the first vertical steel plate 53 form a I-shaped structure; two second vertical steel plates 54 are arranged at the left and right ends of the second horizontal steel plate 52 respectively, and the two second vertical steel plates 54 and the second horizontal steel plate 52 form an H-shaped structure.

[0037] Since the steel beam skeleton 5 adopted in the application is different from the conventional H-shaped steel beam, it can only be formed by welding a piece of steel plate, in order to ensure the welding tightness, the steel plate to be welded needs to be cut and polished before welding; as shown in Figure 3 The shape of the steel beam skeleton 5 is arranged in such a way that the lower flange of the steel beam skeleton 5 is H-shaped, so that the bending bearing capacity of the lower flange of the steel beam skeleton 5 is higher, and the bending and torsional stiffness is better; in addition to the above-mentioned H-shaped structure formed by the second vertical steel plate 54 and the second horizontal steel plate 52, in order to avoid that the weight of the hopper is too large and the welding points between various steel beams are unstable, causing the bending deformation of the support beam of the hopper, the above-mentioned H-shaped structure composed of the second vertical steel plate 54 and the second horizontal steel plate 52 can be an inverted integrally formed H-shaped steel, and the lower end of the first vertical steel plate 53 and the midpoint of the second horizontal steel plate 52 are welded to connect the H-shaped steel together to form the steel beam skeleton 5.

[0038] Step two: arranging the stirrups; the stirrups comprise first stirrups 61 and second stirrups 62, the first stirrups 61 are vertically arranged at the left and right ends of the first horizontal steel plate 51, one end of the first stirrup 61 is connected with the lower end of the first horizontal steel plate 51, and the other end is connected with the inner side of the upper end of the second vertical steel plate 54; the second stirrups 62 are arranged between the two second vertical steel plates 54 and below the second horizontal steel plate 52 and are parallel to the second horizontal steel plate 52.

[0039] In order to ensure the shear stiffness of the hopper support beam, a first stirrup 61 is arranged between the first transverse steel plate 51 and the second vertical steel bar, and a second stirrup 62 is arranged between the two second vertical steel plates 54; in order to avoid the upper part of the first transverse steel plate 51 from being deformed due to excessive compression and the upper part of the second vertical steel bar from being deformed due to excessive tension, the first stirrup 61 is arranged between the first transverse steel plate 51 and the second vertical steel bar, the first stirrup 61 connects the upper parts of the first transverse steel plate 51 and the second vertical steel plate 54, so that the compression zone and the tension zone work together to strengthen the compression and tension strength of the first transverse steel plate 51 and the second vertical steel plate 54, in addition, the arrangement of the first stirrup 61 also provides a mounting point for the later added waist bar 65, and at the same time supports the two sides of the hopper support beam, ensures that the relative positions of the first transverse steel plate 51 and the second vertical steel plate 54 do not deviate after the concrete 4 is poured, and can improve the strength of the hopper support beam; in order to avoid the lower ends of the two second vertical steel plates 54 from being deformed due to excessive tension, the second stirrup 62 is arranged at the lower ends of the two second vertical steel plates 54, and the lower ends of the two second vertical steel plates 54 are connected together through the second stirrup 62, which can not only strengthen the tension resistance of the lower part of the second vertical steel plate 54, but also ensure the installation position of the second vertical steel plate 54, and at the same time, the position of the second vertical steel plate 54 will not deviate after the concrete 4 is poured, and can also provide a mounting point for the later added longitudinal bar 66; the arrangement of the first stirrup 61 and the second stirrup 62 can make the first transverse steel plate 51, the first stirrup 61, the second vertical steel plate 54 and the second stirrup 62 form a frame structure, so that after the concrete 4 is poured, the steel beam skeleton 5 is completely located in the concrete 4, so as to ensure that all sides of the hopper support beam have steel bars or steel beams to improve the strength and bearing capacity of the concrete 4.

[0040] Step three: making a formwork 7; the formwork 7 is made as a model of the frame structure formed by the first transverse steel plate 51, the first stirrup 61, the second vertical steel plate 54 and the second stirrup 62; the steel beam skeleton 5, the first stirrup 61 and the second stirrup 62 are covered in the same space through the formwork 7, so as to form an integrated structure by pouring the concrete 4 later.

[0041] Step four: pouring the concrete 4; pouring the concrete 4 on the steel beam skeleton 5 with the made formwork 7. The steel beam skeleton 5, the stirrup and the like form an integrated structure by pouring the concrete 4, which not only ensures normal use, but also directly uses the side wall of the concrete 4 of the hopper support beam as the side wall of the steel hopper; in addition, since the concrete 4 is poured, it is not necessary to add a sealing plate to the steel beam structure as shown in the prior art, which increases the construction cost. Figure 2 The steel beam structure shown in the prior art has an empty web area, and a sealing plate is added, which increases the construction cost.

[0042] Step five: hoisting and installation. The prepared hopper support beam is transported to the construction site by hoisting for installation; the first four steps can be completed in batch production in the factory, and finally installed on site; if the construction conditions permit, all steps can also be welded and poured on site.

[0043] The bending resistance of the hopper support beam made by this method is composed of the H-shaped steel frame composed of the second transverse steel plate 52 and the second vertical steel plate 54 in tension, the first transverse steel plate 51, the first vertical steel plate 53, the second transverse steel plate 52 and the upper concrete 4 in compression, which improves the bending resistance, seismic performance and ductility of the hopper support beam, and this method makes the hopper support beam can be prefabricated in the factory in advance, and can also be cast in place on site, which can better guarantee the forming quality of the component and speed up the construction speed.

[0044] As a preferred mode, the step one and the step two further comprise a welded shear key, the shear key comprises a first shear key 63 and a second shear key, the first shear key 63 is arranged in the vertical direction of the first vertical steel plate 53, and the second shear key is arranged in the horizontal direction of the second transverse steel plate 52; a plurality of first shear keys 63 perpendicular to the first vertical steel plate 53 are arranged in the vertical direction of the first vertical steel plate 53 to strengthen the shear resistance of the first vertical steel plate 53, prevent the first vertical steel plate 53 from being deformed or causing cracks between the first vertical steel plate 53 and the concrete 4 due to the length being too large and the upper compression being too large, resulting in the upper part of the hopper support beam being unstable and unable to continue to be used, and there is a safety hazard; a plurality of second shear keys perpendicular to the second transverse steel plate 52 are arranged in the horizontal direction below the second transverse steel plate 52 to strengthen the shear resistance of the second transverse steel plate 52, prevent the second transverse steel plate 52 from being deformed due to the second vertical steel plate 54 on both sides of the second transverse steel plate 52 being stressed too much, resulting in the lower part of the hopper support beam being unstable and unable to continue to be used, and there is a safety hazard; the above shear key can be a thicker channel steel or I-beam welded vertically at the corresponding position; as a preferred mode, anchor shear is used in the present application, which is fast and convenient to install, and has low cost.

[0045] The step two and step three also include arranging longitudinal reinforcement 66 and waist reinforcement 65, the waist reinforcement 65 is arranged along the vertical direction of the first hoop reinforcement 61, the longitudinal reinforcement 66 is arranged along the horizontal direction of the second hoop reinforcement 62. In order to avoid the height of the hopper support beam being too high, the bearing capacity of the steel beam skeleton 5 being too large, the displacement of the steel beam skeleton 5, the installation size deviation, the bond strength between the steel beam skeleton 5 and the concrete 4 being affected, and the durability of the hopper support beam being affected, a plurality of waist reinforcements 65 are arranged on the upper part of the first hoop reinforcement 61, which can not only enhance the stiffness of the steel beam skeleton 5, but also constrain the shrinkage cracks of the concrete 4 caused by temperature changes, reduce the crack development of the tensile zone of the hopper support beam, and improve the carrying capacity of the hopper support beam. It should be noted that the waist reinforcements 65 on the first hoop reinforcement 61 on both sides are symmetrically arranged to ensure that the stress of the hopper support beam is average. In order to ensure that the second hoop reinforcement 62 does not deform greatly when the lower part of the hopper support beam is in tension, so that the concrete 4 of the lower part of the hopper support beam produces cracks, thereby affecting the stress performance of the concrete 4 of the compression zone of the hopper support beam, a plurality of longitudinal reinforcements 66 are arranged on the second hoop reinforcement 62, which can not only reduce the deformation amount of the second hoop reinforcement 62 caused by external force, but also improve the tensile performance of the lower part of the hopper support beam, and at the same time, the concrete 4 of the lower part of the hopper support beam is constrained to avoid producing more cracks, affecting the normal use and carrying capacity of the hopper support beam.

Claims

1. A hopper support beam, characterized in that: The structure includes a steel beam frame (5) and concrete (4). The steel beam frame (5) includes a first transverse steel plate (51), a second transverse steel plate (52), a first vertical steel plate (53), and a second vertical steel plate (54). The first transverse steel plate (51) is located at the upper end of the first vertical steel plate (53), and the second transverse steel plate (52) is located at the lower end of the first vertical steel plate (53) and parallel to the first transverse steel plate (51). The first transverse steel plate (51), the second transverse steel plate (52), and the first vertical steel plate (53) form an I-shape. Two second vertical steel plates (54) are respectively located at the left and right ends of the second transverse steel plate (52). The two second vertical steel plates (54) and the second transverse steel plate (53) form an I-shape. 2) Forming an H shape; a first stirrup (61) perpendicular to the first horizontal steel plate (51) is provided below the left and right ends of the first horizontal steel plate (51), one end of the first stirrup (61) is connected to the lower end of the first horizontal steel plate (51), and the other end is connected to the inner side of the upper end of the second vertical steel plate (54); a second stirrup (62) located below the second horizontal steel plate (52) and parallel to the second horizontal steel plate (52) is provided between the two second vertical steel plates (54); the first horizontal steel plate (51), the first stirrup (61), the second vertical steel plate (54) and the second stirrup (62) enclose to form a frame structure; a template (7) is provided outside the frame structure, and the template (7) is filled with concrete (4).

2. The hopper support beam as described in claim 1, characterized in that: The first vertical steel plate (53) is located at the midpoint of the first horizontal steel plate (51) and the second horizontal steel plate (52), and the second horizontal steel plate (52) is located at the midpoint of the two second vertical steel plates (54).

3. A hopper support beam as described in claim 1, characterized in that: The two second vertical steel plates (54) and the second horizontal steel plate (52) can be replaced with H-beams.

4. A hopper support beam as described in claim 1, characterized in that: The first vertical steel plate (53) is provided with a first shear key (63); a plurality of the first shear keys (63) are arranged at intervals along the vertical direction of the first vertical steel plate (53); the second horizontal steel plate (52) is provided with a second shear key (64), and a plurality of the second shear keys (64) are arranged at intervals along the horizontal direction of the second horizontal steel plate (52).

5. A hopper support beam as described in claim 1, characterized in that: The first stirrup (61) is provided with a waist bar (65), and a plurality of the waist bars (65) are arranged at intervals along the vertical direction of the first stirrup (61).

6. A hopper support beam as described in claim 1, characterized in that: The second stirrup (62) is provided with longitudinal bars (66), and a plurality of the longitudinal bars (66) are arranged at intervals along the horizontal direction of the second stirrup (62).

7. A hopper support beam as described in claim 1, characterized in that: The outer side of the second vertical steel plate (54) is connected to the steel hopper wall.

8. A method for manufacturing a hopper support beam, characterized in that: include Step 1: Weld the steel beam frame (5); the steel beam frame (5) includes a first transverse steel plate (51), a second transverse steel plate (52), a first vertical steel plate (53), and a second vertical steel plate (54); the first transverse steel plate (51) is located at the upper end of the first vertical steel plate (53), the second transverse steel plate (52) is located at the lower end of the first vertical steel plate (53) and is parallel to the first transverse steel plate (51), the first transverse steel plate (51), the second transverse steel plate (52) and the first vertical steel plate (53) form an I-shape; the two second vertical steel plates (54) are respectively located at the left and right ends of the second transverse steel plate (52), the two second vertical steel plates (54) and the second transverse steel plate (52) form an H-shape; Step 2: Set up stirrups; the stirrups include a first stirrup (61) and a second stirrup (62). The first stirrup (61) is vertically set at the left and right ends of the first horizontal steel plate (51). One end of the first stirrup (61) is connected to the lower end of the first horizontal steel plate (51), and the other end is connected to the inner side of the upper end of the second vertical steel plate (54). The second stirrup (62) is set between the two second vertical steel plates (54), located below the second horizontal steel plate (52) and parallel to the second horizontal steel plate (52). Step 3: Make template (7); The template (7) is made using the first horizontal steel plate (51), the first stirrup (61), the second vertical steel plate (54) and the second stirrup (62) to form a frame structure as a model; Step 4: Pour concrete (4); Pour concrete (4) into the steel beam frame (5) with the template (7) made; Step 5: Hoisting and installation.

9. A method for manufacturing a hopper support beam as described in claim 8, characterized in that: Between step one and step two, a shear key is welded. The shear key includes a first shear key (63) and a second shear key (64). The first shear key (63) is arranged at intervals along the vertical direction of the first vertical steel plate (53), and the second shear key (64) is arranged at intervals along the horizontal direction of the second transverse steel plate (52).

10. A method for manufacturing a hopper support beam as described in claim 8, characterized in that: Between steps two and three, longitudinal reinforcement (66) and waist reinforcement (65) are arranged. The waist reinforcement (65) is arranged at intervals along the vertical direction of the first stirrup (61), and the longitudinal reinforcement (66) is arranged at intervals along the horizontal direction of the second stirrup (62).

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