Concrete and steel hybrid structure sealed silo

Abstract

The utility model discloses a kind of concrete and steel mixed structure sealing silo, belong to building construction technical field, including the silo wall and steel structure storehouse top poured by concrete, steel structure storehouse top is set in the top of silo wall, and concrete is poured at the connecting place of steel structure storehouse top and silo wall, forms sealed storehouse body, ring beam is equipped in the top of silo wall and first installation slot being set on the top side wall of silo wall, steel structure storehouse top includes main beam and lap joint, lap joint is set in the end of main beam, first installation hole is equipped on the bottom surface of lap joint, anchor bolt assembly is pre-buried in first installation slot, anchor bolt assembly includes anchor rod, backing plate and fastener, one end of anchor rod is pre-buried into silo wall, the other end is exposed, backing plate is sleeved on the exposed part of anchor rod, and backing plate is set on the bottom surface of first installation slot, lap joint is installed into first installation slot, by staggering concrete pouring gap and the gap of main beam and first installation slot, the sealing of silo is improved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a sealed silo with a concrete and steel hybrid structure. Background Technology

[0002] In existing large silo construction, the connection between the concrete silo wall and the steel structure silo roof is usually achieved using the following methods: First, a concrete pier is set on the ring beam at the top of the silo wall. The steel beam is then directly hoisted and placed inside the pier. The bottom of the steel beam is welded and fixed to the embedded parts of the pier, and the longitudinal reinforcement of the ring beam is connected to the stiffening plate of the steel beam using high-strength bolts. Subsequently, formwork is erected on the outside of the steel beam, and a second layer of concrete is poured to wrap around the base of the steel beam, making the steel beam and the silo roof ring beam an integral whole. Another method is to use precast concrete-encased steel beams. Stirrups and longitudinal reinforcing bars are welded to the outside of the H-shaped steel beam, and studs are set on the flanges. After the precast concrete is used to wrap the beam, it is fixed to the ring beam using chemical bolts and concrete supports. In addition, for large-diameter conical shell silo roofs, a lifting frame needs to be erected for high-altitude steel reinforcement binding before pouring concrete. However, these methods have the following drawbacks: First, construction joints easily form at the interface between the newly poured concrete and the existing wall pier concrete, leading to weak bonding, frequent cracks and hollow areas, severely weakening the overall structural integrity. Cracks can further cause grout leakage, directly damaging the silo's sealing and airtightness, thus affecting its use. Second, the precast concrete-encased steel beams are complex and costly to manufacture, and the installation of reinforcing steel in areas such as parapet walls is difficult. Third, the enclosed nature of the silo structure makes it extremely difficult to detect and repair internal cracks or grout leakage points after the roof panel construction is completed. High-altitude operations pose significant risks and are difficult to completely eliminate potential hazards, resulting in high maintenance costs in the later stages. Therefore, a silo structure that can guarantee structural integrity, ease of construction, and excellent sealing performance is needed. Utility Model Content

[0003] The purpose of this invention is to provide a sealed silo with a concrete and steel hybrid structure, which solves the problems of poor overall structure, poor sealing performance, and difficulties in construction and maintenance of existing silos.

[0004] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0005] A sealed silo with a concrete and steel hybrid structure includes a concrete silo wall and a steel structure silo roof. The steel structure silo roof is installed on top of the silo wall. Concrete is poured at the connection between the steel structure silo roof and the silo wall to form a sealed silo body. A ring beam and a first mounting groove are provided on the top side wall of the silo wall. The steel structure silo roof includes a main beam and an overlapping portion. The overlapping portion is located at the end of the main beam. A first mounting hole is provided on the bottom surface of the overlapping portion. An anchor bolt assembly is pre-embedded in the first mounting groove. The anchor bolt assembly includes an anchor rod, a pad, and fasteners. One end of the anchor rod is pre-embedded in the silo wall, and the other end is exposed. The pad is fitted onto the exposed portion of the anchor rod and is located on the bottom surface of the first mounting groove. The overlapping portion is installed into the first mounting groove. The anchor rod passes through the first mounting hole and is fixed as a whole by the fasteners. By staggering the concrete pouring gaps and the gaps between the main beam and the first mounting groove, cracks and grout leakage are prevented, and the silo's sealing performance is improved.

[0006] Furthermore, the first installation groove is configured as an upper and lower half-groove. The lower half-groove is cast and formed synchronously with the silo wall, and the upper half-groove is cast and formed integrally with the main beam after the main beam is overlapped. This provides a large space for hoisting the main beam and avoids stress concentration caused by overlapping gaps.

[0007] Furthermore, the steel structure silo roof also includes a secondary beam, which is spaced apart on the side of the main beam. The secondary beam is provided with a second mounting hole and a pad, with the pad located near the end of the secondary beam. The second mounting hole penetrates laterally through the secondary beam and the pad to improve the support strength and reduce the installation difficulty.

[0008] Preferably, the side wall of the silo is further provided with a second mounting groove, and the sub-beam overlaps in the second mounting groove for installation of the sub-beam.

[0009] Preferably, the second mounting groove has the same structure as the first mounting groove to prevent cracks and grout leakage from appearing on the silo wall.

[0010] Preferably, the assembly also includes a panel, which is disposed on the main beam, and multiple panels are assembled into a conical shape for easy assembly.

[0011] Preferably, a reinforcing mesh is also included, which is laid on the upper surface of the main beam for equipment installation and to facilitate personnel maintenance.

[0012] Furthermore, the overlapping portion is provided with a support member, which is arranged axially along the first mounting hole. The upper end of the support member is connected to the top surface of the overlapping portion, and the lower end of the support member is connected to the bottom surface of the overlapping portion, thereby improving the strength of the main beam connection and preventing deformation under stress.

[0013] More preferably, the cross-section of the main beam is set in an "I" shape, which makes it easy to obtain materials and reduces construction costs.

[0014] More preferably, the lap joint is connected to the main beam with a slope transition, and the height of the lap joint is less than the height of the main beam, which conforms to the mechanical distribution structure and reduces the overall weight.

[0015] The beneficial effects of this utility model are as follows:

[0016] (1) The concrete and steel hybrid structure sealed silo achieves rigid mechanical anchoring between the steel beam and the concrete silo wall by pre-embedding anchor bolt components in the first installation groove at the top of the silo wall and precisely embedding the overlapping part of the steel structure silo top into the installation groove. The anchor rod passes through the installation hole and is locked by fasteners. Then, a second concrete is poured at the connection to completely wrap the interface between the steel beam and the concrete. The first installation groove is divided into upper and lower parts for pouring, which effectively eliminates the construction joints that are easy to be generated at the interface between the old and new concrete in the traditional way. This fundamentally avoids the problem of grout leakage caused by cracks and hollows, and ensures the airtightness and waterproof performance of the silo.

[0017] (2) The installation groove on the concrete and steel hybrid sealed silo adopts a split structure. The lower half of the groove is poured simultaneously with the silo wall, and the upper half of the groove is poured after overlapping with the steel beam. This simplifies the positioning and installation steps of the steel beam and avoids the cumbersome process of traditional wall pier formwork. The pre-embedded structure of the anchor bolt assembly enables the steel beam to be quickly positioned and tightened after hoisting, reducing the adjustment time during hoisting. At the same time, if maintenance is required, local maintenance can be carried out by disassembling the fasteners. Compared with the traditional integral cast structure, it is easier to check and repair potential defects, which greatly reduces the maintenance risks and costs in the later operation. Attached Figure Description

[0018] Figure 1 A top structural diagram of a concrete and steel hybrid sealed silo provided for this utility model;

[0019] Figure 2 This utility model provides a structural diagram of the connection point between the main beam and the warehouse wall.

[0020] Figure 3 This is a structural diagram of the connection point between the sub-beam and the warehouse wall provided by this utility model;

[0021] Figure 4 This is a structural diagram of the steel mesh laid inside the warehouse wall provided by this utility model.

[0022] Figure label:

[0023] 1. Ring beam; 2. Silo wall; 21. First mounting slot; 22. Protrusion; 23. Second mounting slot; 24. Rebar frame; 3. Panel; 4. Steel structure silo roof; 41. Main beam; 42. Overlap; 43. First mounting hole; 44. Spacer block; 45. Second mounting hole; 46. Sub-beam; 47. Support component; 5. Anchor bolt assembly; 51. Anchor bolt; 52. Pad; 53. Fastener; 6. Rebar mesh. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] like Figures 1-4 As shown, this embodiment discloses a sealed silo with a concrete and steel hybrid structure, including a silo wall 2 made of concrete and a steel structure silo roof 4. The steel structure silo roof 4 is installed on top of the silo wall 2. Concrete is poured at the connection between the steel structure silo roof 4 and the silo wall 2 to form a sealed silo body. A ring beam 1 and a first mounting groove 21 are provided on the top side wall of the silo wall 2. The steel structure silo roof 4 includes a main beam 41 and an overlapping part 42. The overlapping part 42 is located at the end of the main beam 41. A first mounting hole 43 is provided on the bottom surface of the overlapping part 42. An anchor bolt assembly 5 is pre-embedded in the first mounting groove 21. The anchor bolt assembly 5 includes an anchor rod 51, a pad 52, and a fastener 5. 3. One end of the anchor rod 51 is pre-embedded in the silo wall 2, and the other end is exposed. The pad 52 is fitted on the exposed part of the anchor rod 51 and is set on the bottom surface of the first mounting groove 21. The overlap part 42 is installed in the first mounting groove 21. After the anchor rod 51 passes through the first mounting hole 43, it is fixed as a whole by the fastener 53. After the first mounting groove 21 is partially cast, the anchor bolt assembly 5 is pre-embedded. Then the main beam 41 is hoisted into the first mounting groove 21 and connected to the anchor bolt assembly 5. Then it is cast as a whole, so that there will be no casting gap at the connection between the main beam 41 and the silo wall 2. By staggering the casting gap and structural connection joint, cracks and voids are prevented, and the sealing performance of the silo is improved.

[0026] Furthermore, the first installation groove 21 is configured as an upper and lower half-groove. The lower half-groove is cast and formed simultaneously with the silo wall 2, and the upper half-groove is cast and formed integrally with the main beam 41 after the main beam 41 is overlapped. By casting the first installation groove 21 separately, excessive stress is prevented from being generated by the overlap of the structural component connection joints and the casting gaps, which would cause cracks and grout leakage in the silo wall 2. The space for installing the main beam 41 is larger, reducing the difficulty of hoisting.

[0027] Furthermore, a steel reinforcement frame 24 is provided in the side wall of the first mounting groove 21. The steel reinforcement frame 24 is arranged around the first mounting groove 21, and a part of the steel reinforcement frame 24 is prefabricated in the lower half of the first mounting groove 21, while the other part is cast in concrete at the same time as the upper half of the first mounting groove 21 and the main beam 41. The steel reinforcement frame 24 is a cage-shaped structure woven from steel bars.

[0028] Furthermore, the steel structure silo top 4 also includes a secondary beam 46, which is spaced apart on the side of the main beam 41. The secondary beam 46 is provided with a second mounting hole 45 and a pad 44. The pad 44 is located near the end of the secondary beam 46. The second mounting hole 45 penetrates the secondary beam 46 and the pad 44 laterally. The secondary beam 46 is connected to the main beam 41. The secondary beam 46 is used to increase the support density between multiple main beams 41. The weight of the secondary beam 46 is less than that of the main beam 41, which plays a role in increasing the load-bearing capacity and reducing the overall mass.

[0029] Furthermore, a second mounting groove 23 is provided on the side wall of the warehouse wall 2, and the sub-beam 46 overlaps in the second mounting groove 23.

[0030] Preferably, the second mounting groove 23 has the same structure and construction method as the first mounting groove 21. The second mounting groove 23 also has a structure in which the upper and lower halves of the groove are cast separately, which serves to stagger the structural gaps and casting gaps.

[0031] Preferably, it also includes a panel 3, which is disposed on the main beam 41. Multiple panels 3 are assembled into a cone shape, and multiple panels 3 are laid on the main beam 41 in a splicing manner, which is convenient for installation.

[0032] Preferably, it also includes a steel mesh 6, which is laid on the upper surface of the main beam 41. The steel mesh 6 is used to increase the structural density of the silo top, facilitate the hanging of other equipment, and facilitate the movement of construction personnel and future maintenance after the steel mesh 6 is laid.

[0033] Preferably, the overlapping part 42 is provided with a support member 47, which is arranged along the axial direction of the first mounting hole 43. The upper end of the support member 47 is connected to the top surface of the overlapping part 42, and the lower end of the support member 47 is connected to the bottom surface of the overlapping part 42. The support member 47 is used to improve the load-bearing capacity of the main beam 41 and prevent local deformation at the connection of the main beam 41.

[0034] More preferably, the cross-section of the main beam 41 is set in an "I" shape, which has strong load-bearing capacity and is easy to obtain materials.

[0035] More preferably, the lap joint 42 is connected to the main beam 41 with a slope transition, and the height of the lap joint 42 is less than the height of the main beam 41, which facilitates installation.

[0036] Preferably, the inner side of the silo wall 2 extends to form a protrusion 22, and the first mounting groove 21 is provided on the protrusion 22. By increasing the wall thickness, the strength at the connection with the main beam 41 is improved, and the cracking and settlement of the first mounting groove 21 are prevented.

[0037] The silo was constructed as follows:

[0038] First, the foundation is built, and then the silo wall 2 mold is built layer by layer on the foundation. The construction is carried out by pouring concrete layer by layer until it is close to the top of the silo. The ring beam 1 is hoisted to the top of the silo wall 2 and the anchor bolt assembly 5 is embedded in the silo wall 2. After the embedding is completed, the silo wall 2 is poured again to form the lower half of the first installation groove 21. After the forming is completed, the main beam 41 is hoisted into the first installation groove 21, so that the anchor rod 51 is inserted into the first installation hole 43 on the main beam 41. After the hoisting is completed, concrete is poured again so that the upper half of the first installation hole 43 is integrated with the connection of the main beam 41. After the pouring is completed, the panel 3 is installed on the main beam 41 to complete the sealing of the silo.

[0039] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and any modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A sealed silo with a concrete and steel hybrid structure, comprising a silo wall (2) made of concrete and a silo roof (4) made of steel structure, wherein the steel structure silo roof (4) is disposed on top of the silo wall (2), and concrete is poured at the connection between the steel structure silo roof (4) and the silo wall (2) to form a sealed silo body, characterized in that: A ring beam (1) and a first mounting groove (21) are provided on the top side wall of the warehouse wall (2). The steel structure warehouse roof (4) includes a main beam (41) and an overlapping part (42). The overlapping part (42) is located at the end of the main beam (41). A first mounting hole (43) is provided on the bottom surface of the overlapping part (42). An anchor bolt assembly (5) is pre-embedded in the first mounting groove (21). The anchor bolt assembly (5) includes an anchor rod (51). The anchor rod (51) consists of a pad (52) and a fastener (53). One end of the anchor rod (51) is embedded in the silo wall (2), and the other end is exposed. The pad (52) is fitted onto the exposed part of the anchor rod (51) and is set on the bottom surface of the first mounting groove (21). The overlapping part (42) is installed in the first mounting groove (21). The anchor rod (51) passes through the first mounting hole (43) and is fixed as a whole by the fastener (53).

2. The sealed silo with a concrete and steel hybrid structure according to claim 1, characterized in that: The first installation groove (21) is configured as an upper and lower half-groove. The lower half-groove is cast and formed synchronously with the warehouse wall (2). The upper half-groove is cast and formed integrally with the main beam (41) after the main beam (41) is overlapped.

3. The concrete and steel hybrid structure sealed silo according to claim 2, characterized in that: The steel structure silo top (4) also includes a secondary beam (46), which is spaced apart on the side of the main beam (41). The secondary beam (46) is provided with a second mounting hole (45) and a pad (44). The pad (44) is provided near the end of the secondary beam (46), and the second mounting hole (45) penetrates the secondary beam (46) and the pad (44) laterally.

4. The concrete and steel hybrid structure sealed silo according to claim 3, characterized in that: The side wall of the warehouse wall (2) is also provided with a second mounting groove (23), and the sub-beam (46) overlaps in the second mounting groove (23).

5. The concrete and steel hybrid structure sealed silo according to claim 4, characterized in that: The second mounting slot (23) has the same structure as the first mounting slot (21).

6. The concrete and steel hybrid structure sealed silo according to claim 1, characterized in that: It also includes a panel (3) which is disposed on the main beam (41), and a plurality of the panels (3) are assembled into a cone shape.

7. The concrete and steel hybrid structure sealed silo according to claim 1, characterized in that: It also includes a steel mesh (6), which is laid on the upper surface of the main beam (41).

8. The concrete and steel hybrid structure sealed silo according to claim 1, characterized in that: The overlapping part (42) is provided with a support member (47), which is arranged along the axial direction of the first mounting hole (43). The upper end of the support member (47) is connected to the top surface of the overlapping part (42), and the lower end of the support member (47) is connected to the bottom surface of the overlapping part (42).

9. The sealed silo with a concrete and steel hybrid structure according to claim 1, characterized in that: The cross-section of the main beam (41) is set in the shape of an "I".

10. The concrete and steel hybrid structure sealed silo according to claim 1, characterized in that: The lap joint (42) is connected to the main beam (41) with a slope transition, and the height of the lap joint (42) is less than the height of the main beam (41).

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