Connecting structure of basement top plate and steel structure column

Abstract

The utility model belongs to the technical field of building connecting structures, and discloses a basement top plate and steel structure column connecting structure, which comprises an independent foundation arranged on a basement top plate, a plurality of anchor plates are embedded in the independent foundation, a bottom plate is arranged at the top of the independent foundation, and the bottom ends of anchor bolts are fixed with the anchor plates. The top ends of the anchor bolts penetrate through the bottom plate and then are locked through nuts, a square structure column is fixed to the bottom plate, three reinforcing rib plates are welded between each outer side face of the square structure column and the bottom plate, a concrete outer wrapping layer is poured at the bottom of the square structure column, and the multiple reinforcing rib plates and the multiple rectangular hoops are all arranged in the concrete outer wrapping layer. By means of the independent foundation with the built-in steel structure columns, the load of a building externally connected with the top is effectively borne, deep transformation of the basement top plate is not needed, stress analysis is met, steel is saved, and construction cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of building connection structure technology, and specifically discloses a connection structure between the basement roof slab and the steel structure column. Background Technology

[0002] With the increasing diversity of building functional requirements, various landscape designs for basement rooftops are emerging, such as landscape curtain walls and landscape pavilions. Taking pavilions as an example, their placement on the basement rooftop is usually flexible, with a light and transparent style required. Most are single-layer steel structures, which have relatively low strength. The most common structural form for basements is a reinforced concrete frame structure. Relying solely on the reinforced concrete columns of the rising basement or using the basement column grid to position the upper pavilion is prone to displacement, and the installation strength and stability are insufficient.

[0003] Currently, there are three common methods for connecting the bases of reinforced concrete columns: external, embedded, and exposed. Theoretically, all three methods are acceptable. However, when the soil cover of the reservoir roof is thin, external and embedded column bases have large structural size requirements. After meeting the structural requirements, the height of the structural components usually far exceeds the soil cover thickness, which cannot meet the requirements of the building and landscape. Exposed column bases are not conducive to the corrosion protection of steel structures. Therefore, none of the three connection methods are suitable for the construction needs of buildings and landscapes. Utility Model Content

[0004] To address the technical problems existing in the prior art, this utility model provides a connection structure between the basement roof slab and the steel structure column. The pavilion adopts a steel structure, and the steel structure is placed on the basement roof slab with an independent reinforced concrete foundation, resulting in high structural strength.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a connection structure between a basement roof slab and a steel structure column, including an independent foundation set on the basement roof slab, multiple anchor plates pre-embedded in the independent foundation, the multiple anchor plates being arranged at the same height, a base plate being provided on the top of the independent foundation, the bottom end of an anchor bolt being fixed to the anchor plate, the top end of the anchor bolt passing through the base plate and extending upward, the top end of the anchor bolt being provided with an external thread, the top thread of the anchor bolt being connected to a nut, and a washer being press-fitted between the nut and the base plate.

[0006] A square structural column is fixed to the base plate. Three reinforcing ribs are welded between each outer side of the square structural column and the base plate. The three reinforcing ribs on the same side are arranged at equal intervals. One of the reinforcing ribs on the same side of the square structural column is fixed to the middle of the outer side, and the other two reinforcing ribs on the same side of the square structural column are fixed to the edge of the outer side. The top of the reinforcing ribs is cut with a bevel.

[0007] The outer side of the square structural column is bound with multiple rectangular hoops by wire.

[0008] The bottom of the square structural column is encased in a concrete outer layer, and multiple reinforcing ribs and rectangular hoops are placed inside the concrete outer layer.

[0009] The top of the basement roof slab is covered with a soil layer, and the concrete outer layer and independent foundation are both placed inside the soil layer.

[0010] The bottom of the base plate is fixed with a shear key, which is a hot-rolled ordinary I-beam and is placed within the independent foundation.

[0011] The system consists of 12 anchor bolts, with the top of each anchor bolt positioned between adjacent reinforcing ribs.

[0012] Multiple anchor plates placed on the same side are arranged at equal intervals to ensure stress stability.

[0013] Compared with the prior art, the specific beneficial effects of this utility model are reflected in the following aspects:

[0014] I. This utility model reduces the anchoring length and foundation thickness by arranging an independent foundation on the top of the basement roof slab, rationally arranging the diameter and number of anchor bolts, and selecting a combination of small-diameter anchor bolts and large-diameter anchor plates.

[0015] Second, this utility model, through its independent foundation with built-in steel structure, can effectively bear the load of the external building on top without the need for deep modification of the basement roof. It satisfies the stress analysis, saves steel, and reduces construction costs. In addition, while reducing the height of the foundation components, this invention effectively protects the steel structure components buried in the soil, avoiding the tedious maintenance work of digging up the soil and painting later.

[0016] Third, the components above the top surface of the column base of this utility model can be effectively protected from corrosion by setting a concrete outer layer to isolate soil and water. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the internal installation structure of this utility model.

[0019] In the diagram, 1 is an independent foundation, 2 is an anchor plate, 3 is a base plate, 4 is an anchor bolt, 5 is a square structural column, 6 is a reinforcing rib, 7 is a rectangular hoop, 8 is a concrete outer layer, 9 is the soil cover layer of the basement roof, 10 is a shear key, 11 is a nut, and 12 is a washer. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] like Figure 1-2 As shown, a connection structure between a basement roof slab and a steel structure column is firstly constructed by welding and fixing multiple anchor plates 2 to the bottom of corresponding anchor bolts 4. The multiple anchor plates 2 and multiple anchor bolts 4 are then pre-embedded in a cast-in-place frame. The multiple anchor plates 2 are arranged at the same height. Concrete is poured into the cast-in-place frame, and after solidification, an independent foundation 1 is formed. The tops of the multiple anchor bolts 4 pass through the base slab 3 and extend to the outside of the base slab 3. A pad 12 is fitted on the anchor bolts 4 extending to the outside of the base slab 3. The exposed ends of the anchor bolts 4 are locked by nuts 11.

[0022] A square structural column 5 is welded onto the base plate 3. Three reinforcing ribs 6 are welded between each outer side of the square structural column 5 and the base plate 3. The top of the reinforcing ribs 6 is cut at an angle. The three reinforcing ribs 6 on the same side are arranged at equal intervals. The first reinforcing rib 6 is welded to one edge of the outer side, the second reinforcing rib 6 is welded to the middle of the outer side, and the third reinforcing rib 6 is welded to the other edge of the outer side.

[0023] Shear key 10 is welded to the bottom of base plate 3. Shear key 10 is hot-rolled ordinary I-beam. Shear key 10 is placed in independent foundation 1, which can effectively prevent the square structural column 5 from sliding laterally.

[0024] Multiple rectangular hoops 7 are tied to the outside of the square structural column 5. The square structural column 5 and multiple reinforcing ribs 6 are placed inside the rectangular hoops 7. After positioning, a casting frame is fixed at the bottom of the square structural column 5. Concrete is poured inside the casting frame. The pouring height of the concrete is higher than that of the reinforcing ribs. After the concrete solidifies, a concrete outer layer 8 is formed. The concrete outer layer 8 completely covers the top of multiple anchor bolts 4, multiple reinforcing ribs, multiple rectangular hoops 7 and the bottom of the square structural column 5. This effectively protects the steel structural components buried in the soil and avoids the tedious maintenance work of digging up the soil and painting in the future.

[0025] There are 12 anchor bolts 4, and the top of each anchor bolt 4 is placed between adjacent reinforcing ribs 6.

[0026] A top cover soil is laid on top of the basement roof slab to form a basement roof cover soil layer 9. The overall thickness of the basement roof cover soil layer 9 is greater than the sum of the heights of the independent foundation 1 and the concrete outer layer 8. The basement roof cover soil layer 9 completely covers the independent foundation 1 and the concrete outer layer 8, avoiding the tedious maintenance work of digging up soil and painting in the future.

[0027] This utility model effectively supports the load of the external building by arranging an independent foundation 1 on the top of the basement roof slab, without the need for deep modification of the basement roof slab. By reasonably arranging the diameter and number of anchor bolts 4 and selecting a combination of small-diameter anchor bolts 4 and large-diameter anchor plates 2, the anchorage length and foundation thickness are reduced, which satisfies the stress analysis, saves steel, and reduces construction costs.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model shall be included within the scope of the present utility model.

Claims

1. A connecting structure of a basement roof and a steel structure column, characterized by, It includes an independent foundation (1) set on the top slab of the basement, in which multiple anchor plates (2) are pre-embedded, and the multiple anchor plates (2) are arranged at the same height. The top of the independent foundation (1) is provided with a base plate (3), and the base plate (3) and the corresponding anchor plate (2) are connected by anchor bolts (4). A square structural column (5) is fixed on the base plate (3). Each outer side of the square structural column (5) is connected to the base plate (3) by three reinforcing ribs (6). The three reinforcing ribs (6) on the same side are arranged at equal intervals. Multiple rectangular hoops (7) are tied to the outside of the square structural column (5). The bottom of the square structural column (5) is filled with a concrete outer layer (8), and multiple reinforcing ribs (6) and multiple rectangular hoops (7) are placed inside the concrete outer layer (8). The top of the basement roof slab is provided with a basement roof cover layer (9), and the concrete outer layer (8) and the independent foundation (1) are both placed inside the basement roof cover layer (9).

2. The connecting structure of a basement roof and a steel structure column according to claim 1, characterized in that, The bottom of the base plate (3) is fixed with a shear key (10), which is placed inside the independent foundation (1).

3. The connection structure between the basement roof slab and the steel structure column according to claim 1, characterized in that, The number of anchor bolts (4) is 12. Each anchor bolt (4) extends upward after passing through the base plate (3). The top of the anchor bolt (4) is locked by a nut (11). A pad (12) is press-fitted between the nut (11) and the base plate (3). The top of each anchor bolt (4) is placed between adjacent reinforcing ribs (6).

4. The connecting structure of a basement roof and a steel structure column according to claim 1, characterized in that, Multiple anchor plates (2) placed on the same side are arranged at equal intervals.

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