A caisson foundation structure for a stereo garage

Abstract

The invention discloses a caisson foundation structure of a stereo garage, belonging to the technical field of stereo garages, comprising an underground wall, the underground wall is divided into several layers up and down along the height direction, the thickness of the underground wall located in the upper layer is less than the thickness of the underground wall located in the lower layer, each layer of the underground wall comprises several steel boxes connected together, the steel box comprises a box structure consisting of a front panel, a rear panel, a top plate and a bottom plate, the left and right sides of the front panel and the rear panel are provided with bending parts, the bending parts of two adjacent steel boxes in each layer are connected together by bolt assemblies, a plurality of pouring holes are provided on the top plate, concrete is poured in the steel box, and the top plate of the steel box located in the lower layer is connected to the bottom plate of the corresponding steel box located in the upper layer by fasteners. The invention solves the technical problems of high production cost of the caisson foundation and poor connection effect between adjacent steel boxes after installation, and is widely used in the caisson construction of stereo garages.

Description

Technical Field

[0001] The invention belongs to the technical field of stereo garages, and in particular relates to a caisson foundation structure of a stereo garage. Background Art

[0002] With the continuous improvement of people's living standards, more and more people have bought private cars, which has a significant impact on urban traffic and environment. The emergence of parking difficulties has also brought huge business opportunities and a broad market to the mechanical parking equipment industry. At this time when business opportunities and competition coexist, my country's mechanical parking equipment industry will also enter a stable development stage from a rapid development stage. The future market is huge, but the demand for products will develop towards two extremes: one extreme is the extreme of price. The market needs a large number of low-priced mechanical parking equipment. As long as it can achieve the purpose of increasing parking spaces and can guarantee the most basic performance, it can occupy the market with price advantages. The market share of this part is expected to reach 70%-80%; the other extreme is the extreme of technology and performance, requiring parking equipment to have superior performance, convenient operation, and fast access speed. Through the summary of the use experience of mechanical parking equipment at home and abroad, it can be found that when people use mechanical parking equipment to access cars, the first thing they pursue is the access speed, waiting time and convenience. In addition, the future mechanical parking equipment market will pay more attention to a complete after-sales service system, and remote monitoring systems and remote fault guidance systems will be the goals pursued by users. With the sustained and rapid development of my country's economy and the improvement of urban planning, the mechanical parking equipment industry will become a vibrant sunrise industry, and the technology of mechanical parking equipment will also be rapidly developed.

[0003] With the rapid economic development today, the ground buildings and green areas are gradually increasing, resulting in a serious shortage of ground parking spaces. Therefore, underground stereo garages have become a development trend, and how to construct underground stereo garages is also a topic that technicians in this field have consistently studied.

[0004] Chinese invention patent 2019202725738 discloses a caisson structure for the foundation of a three-dimensional parking garage, including an underground wall, which is divided into several layers up and down along the height direction, the thickness of the upper underground wall is less than the thickness of the lower underground wall, the blade-foot layer underground wall is divided into several blade-foot steel foundation units along the circumferential direction, and a first connecting mechanism is provided between two circumferentially adjacent blade-foot steel foundation units, and the module layer underground wall is divided into several module steel foundation units along the circumferential direction, and a first connecting mechanism is provided between two circumferentially adjacent module steel foundation units, and the upper and lower adjacent module steel foundation units and the adjacent module steel foundation units and the blade-foot steel foundation units. A second connecting mechanism is provided between them. Although this invention solves the technical problems of long production cycle, insufficient strength and easy damage of the current standard layer, the following disadvantages still exist in the actual construction process: (1) The steel box needs to have sufficient strength, so the plate thickness is relatively large, the overall weight is large, the consumables are high, and the cost is high; (2) The steel box is welded around the periphery, the welding amount is large, and weld leakage is easy to occur; (3) The gap between adjacent steel boxes is large, and concrete needs to be poured. These poured concretes do not have steel shells, and become relatively weak stress points, which are easy to be damaged, resulting in poor connection between adjacent steel boxes, affecting the quality of the caisson structure of the three-dimensional parking garage.

[0005] Therefore, in the field of stereo garage technology, there is still a need for research and improvement on the foundation structure of the stereo garage caisson, which is also a research hotspot and focus in the field of stereo garage technology, and is the starting point for the completion of the present invention. Summary of the invention

[0006] Therefore, the technical problem to be solved by the present invention is to provide a caisson foundation structure for a stereo garage to solve the current technical problems of high caisson foundation manufacturing cost and poor connection effect between adjacent steel boxes after installation.

[0007] To solve the above technical problems, the technical solution of the present invention is: a caisson foundation structure of a three-dimensional parking garage, including an underground wall, which is divided into several layers up and down along the height direction, the thickness of the underground wall located in the upper layer is less than the thickness of the underground wall located in the lower layer, and each layer of the underground wall includes several steel boxes connected together, the steel box includes a box structure consisting of a front panel, a rear panel, a top plate and a bottom plate, the left and right sides of the steel box are open, the front panel and the rear panel are both corrugated plates, and the left and right sides of the front panel and the rear panel are provided with bending parts, the bending parts of two adjacent steel boxes in each layer are connected together by bolt assemblies, the inner cavities of the steel boxes in each layer are interconnected, a plurality of pouring holes are provided on the top plate, concrete is poured in the steel box, and the top plate of the steel box in the lower layer is connected to the bottom plate of the corresponding steel box in the upper layer by fasteners.

[0008] As an improvement, a reinforcing plate arranged parallel to the top plate is provided in the steel box body, and a plurality of leakage holes are provided on the reinforcing plate.

[0009] As a further improvement, connecting ribs are provided on the left and right sides of the reinforcing plate. The connecting rib on the left side of the reinforcing plate extends out of the left side of the steel box body, and the connecting rib on the right side of the reinforcing plate extends out of the right side of the steel box body. The connecting rib on the left side of the reinforcing plate and the connecting rib on the right side of the reinforcing plate are arranged alternately.

[0010] As a further improvement, the cross-sectional area of ​​the top plate of the steel box located at the lower layer is larger than the cross-sectional area of ​​the bottom plate of the corresponding steel box located at the upper layer, and a step is formed between the top plate of the steel box located at the lower layer and the bottom plate of the corresponding steel box located at the upper layer.

[0011] As a further improvement, a weld is provided at the step.

[0012] As a further improvement, the outer surface of the front panel is provided with a crossbeam for connecting to the steel structure frame of the stereo garage.

[0013] As a further improvement, the crossbeam is a concave structure formed by bending a plate.

[0014] As a further improvement, an operating hole is provided on the crossbeam near the bending portion.

[0015] After adopting the above technical solution, the beneficial effects of the present invention are:

[0016] (1) The caisson foundation structure of the multi-story parking garage provided by the present invention has open left and right sides of the steel box, which reduces the steel plates on the left and right sides, saves the steel plates, reduces the manufacturing cost, and reduces the welding between the left and right steel plates, thereby reducing the welding amount; in particular, all the steel boxes on the same layer are connected together in sequence by bolts, and the bolts are used in a tensile manner, so that the force is more reasonable and the connection is more firm. The inner cavities of all the steel boxes on the same layer are interconnected and cast uniformly, and all the poured concrete is inside the steel box, avoiding exposure of the cast concrete, thereby improving the quality of the caisson structure of the multi-story parking garage.

[0017] (2) Since the steel box is provided with a reinforcing plate, it not only stabilizes the steel box, but also effectively improves the structural strength of the concrete after pouring the concrete.

[0018] (3) Since connecting ribs are provided on the left and right sides of the reinforcing plate, the concrete in the adjacent steel boxes is firmly combined into one, further improving the overall structural strength of the caisson structure after it is formed.

[0019] (4) Since a step is formed between the top plate of the steel box located at the lower layer and the bottom plate of the corresponding steel box located at the upper layer, a weld is provided at the step. Welding at this location can not only increase the connection strength between the upper and lower steel boxes, but also effectively prevent leakage between the upper and lower steel boxes, so as to avoid leakage caused by concrete overflowing from the pouring hole when the fasteners are not firm enough, thereby further improving the quality of the caisson structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0022] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0023] Figure 2 is a structural schematic diagram of a steel box body in an embodiment of the present invention;

[0024] Figure 3 yes Figure 2 Schematic diagram of the left view structure;

[0025] Figure 4 yes Figure 2 A schematic diagram of a top view structure;

[0026] Figure 5 yes Figure 2 Schematic diagram of the structure in the middle AA direction;

[0027] Figure 6 yes Figure 5 A schematic diagram of the partially enlarged structure of B in the middle;

[0028] Figure 7 is a schematic diagram of the three-dimensional structure of a steel box body in an embodiment of the present invention;

[0029] Figure 8 is a schematic diagram of the connection structure of left and right adjacent steel boxes in an embodiment of the present invention;

[0030] Fig. 9 Schematic diagram of the connection structure of upper and lower adjacent steel boxes in an embodiment of the present invention;

[0031] In the figure: 1, front panel, 2, rear panel, 3, top plate, 301, pouring hole, 4, bottom plate, 5, bending part, 501, connecting hole, 6, reinforcing plate, 601, leakage hole, 7, connecting rib, 701 hook, 8, cross beam, 801, operation hole. DETAILED DESCRIPTION

[0032] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] The terms such as "front", "back", "left", "right", "inside", "outside", "middle", etc. cited in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as within the scope of implementation of the present invention without substantially changing the technical content.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 As shown together, the present invention provides a caisson foundation structure of a three-dimensional parking garage, including an underground wall, which is divided into several layers up and down along the height direction, the thickness of the underground wall located in the upper layer is less than the thickness of the underground wall located in the lower layer, and each layer of the underground wall includes several steel boxes connected together, and the steel box includes a box structure composed of a front panel 1, a rear panel 2, a top plate 3 and a bottom plate 4. Here, the side close to the steel structure frame of the three-dimensional parking garage is defined as the front, and the side close to the civil engineering is defined as the rear. The front panel 1 is opposite to the rear panel 2, and the top plate 3 is opposite to the bottom plate 4. The left and right sides of the steel box are open, and the front panel 1 and the rear panel 2 are both corrugated plates. Compared with flat plates, the use of corrugated plates, the corrugated plates of the same strength save about 40% of the plate weight compared with flat plates, thereby reducing the manufacturing cost. Figure 5 and Figure 6As shown, the left and right sides of the front panel 1 and the rear panel 2 are provided with bending parts 5, and the bending parts 5 are usually formed by bending outward perpendicular to the surface of the front panel 1 or the rear panel 2. The bending parts 5 of the two adjacent steel boxes on each layer are connected together by bolt assemblies, and usually a plurality of connecting holes 501 for installing bolts are provided on the bending parts 5. The steel boxes adjacent to the left and right are connected together by components such as bolts, nuts and gaskets, so that the inner cavities of all steel boxes on the same layer are connected together, which is convenient for centralized and unified pouring. A plurality of pouring holes 301 are provided on the top plate 3. After the connection of the circumferentially adjacent steel boxes is completed, concrete is poured in the steel boxes, and then the caisson can be excavated. If there is a leakage at the bending part 5, such as Figure 8 As shown, welding is performed outside two adjacent bending parts 5 to form a vertical leakproof weld. After sinking one layer, a steel box located above is installed. During installation, the top plate of the steel box located at the lower layer is connected to the bottom plate of the corresponding steel box located at the upper layer through fasteners. Here, the fasteners are usually a combination of bolts, nuts and gaskets. The steel box of this structure is open on both the left and right sides, which reduces the steel plates on the left and right sides, saves the amount of steel plates used, reduces the manufacturing cost, and reduces the welding between the left and right steel plates, thereby reducing the amount of welding; in particular, all steel boxes on the same layer are connected together in sequence by bolts. The bolts are used in a tensile manner, the force is more reasonable, and the connection is more firm. The inner cavities of all steel boxes on the same layer are interconnected and poured uniformly. All poured concrete is in the steel box, avoiding the exposure of poured concrete and improving the quality of the caisson structure of the three-dimensional parking garage.

[0035] like Figure 4 As shown, a reinforcing plate 6 arranged parallel to the top plate 3 is provided in the steel box body. The reinforcing plate 6 is usually welded to the inner wall of the steel box body, which not only stabilizes the steel box body, but also effectively improves the structural strength of the concrete after pouring the concrete. The number of reinforcing plates 6 is not limited here, and those skilled in the art can reasonably arrange them according to the volume of the steel box body. A plurality of leakage holes 601 are provided on the reinforcing plate 6, which can make the inner cavity of the steel box body be filled more smoothly when pouring concrete.

[0036] The left and right sides of the reinforcing plate 6 are both provided with connecting ribs 7, which are usually made of threaded steel. The connecting ribs 7 on the left side of the reinforcing plate 6 extend out of the left side of the steel box, and the connecting ribs 7 on the right side of the reinforcing plate 6 extend out of the right side of the steel box. The connecting ribs 7 on the left side of the reinforcing plate 6 and the connecting ribs 7 on the right side of the reinforcing plate 6 are arranged alternately, which avoids the mutual interference of the connecting ribs 7 when the steel boxes are connected. The setting of the connecting ribs 7 makes the concrete in the adjacent steel boxes firmly combined into one, further improving the overall structural strength of the caisson structure after forming. In order to enhance the connection effect, the end of the connecting rib 7 is provided with a hook 701, which is usually at a 90-degree angle with the connecting rib 7, which can better grasp the concrete and improve the connection strength between adjacent concrete modules.

[0037] Based on this concept, those skilled in the art may also set connecting ribs 7 on the lower surface of the top plate 3 and the upper surface of the bottom to further improve the connection strength between the concrete blocks in the adjacent steel boxes, which will not be elaborated here.

[0038] like Fig. 9 As shown, the cross-sectional area of ​​the top plate 3 of the steel box at the lower layer is larger than the cross-sectional area of ​​the bottom plate 4 of the corresponding steel box at the upper layer, and a step is formed between the top plate 3 of the steel box at the lower layer and the bottom plate 4 of the corresponding steel box at the upper layer. A weld is provided at the step. Welding at this point can not only increase the connection strength of the upper and lower steel boxes, but also effectively prevent leakage between the upper and lower steel boxes, so as to avoid leakage of concrete overflowing from the pouring hole 301 when the fasteners are not strong enough, thereby further improving the quality of the caisson structure. This structure cleverly utilizes the size between the top plate 3 of the lower steel box and the bottom plate 4 of the upper steel box to form a step, which is just right for welding without the need for beveling, thereby optimizing the process and improving the manufacturing efficiency.

[0039] The outer surface of the front panel 1 is provided with a crossbeam 8 for connecting to the steel structure frame of the multi-story parking garage. The crossbeam 8 is made of steel material and can be welded or bolted to the steel structure frame of the multi-story parking garage. The crossbeam 8 is a concave structure formed by bending a plate. The end face of the crossbeam 8 is usually made with a corrugated groove that matches the front panel 1, so that the crossbeam 8 and the front panel 1 are better combined. In order to prevent the crossbeam 8 from hindering the fastener connection operation of the bending portion 5, an operating hole 801 is provided on the crossbeam 8 near the bending portion 5, and the operator can insert a tool through the operating hole 801 to operate the bolts of the bending portion 5.

[0040] The steel box is usually produced in a modular manner in a factory and then cast on site. To be suitable for caisson construction, a blade foot is provided outside the bottom plate 4 of the steel box, which can be used as a blade foot layer during caisson construction. These changes based on this concept are within the scope of protection of the present invention.

[0041] Compared with the traditional technical solution, the present invention has a more reasonable structure, reduces the manufacturing difficulty and manufacturing cost, improves the overall quality of the caisson structure, and has the value of popularization and use.

[0042] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A caisson foundation structure for a three-dimensional parking garage, comprising an underground wall, wherein the underground wall is divided into several layers in the vertical direction, and the thickness of the underground wall located in the upper layer is less than the thickness of the underground wall located in the lower layer, characterized in that: Each layer of underground wall includes several steel boxes connected together, and the steel box includes a box structure consisting of a front panel, a rear panel, a top panel and a bottom panel. The left and right sides of the steel box are open, and the front panel and the rear panel are corrugated panels. The left and right sides of the front panel and the rear panel are provided with bending parts, and the bending parts of two adjacent steel boxes on each layer are connected together by bolt assemblies. The inner cavities of the steel boxes on each layer are interconnected, and several pouring holes are provided on the top plate. Concrete is poured in the steel box. The top plate of the steel box on the lower layer is connected to the bottom plate of the corresponding steel box on the upper layer through fasteners.

2. The caisson foundation structure of the three-dimensional parking garage according to claim 1 is characterized in that: The steel box body is provided with a reinforcing plate arranged parallel to the top plate, and the reinforcing plate is provided with a plurality of material leakage holes.

3. The caisson foundation structure of the three-dimensional car park according to claim 2 is characterized in that: The left and right sides of the reinforcing plate are provided with connecting ribs. The connecting rib on the left side of the reinforcing plate extends out of the left side of the steel box body, and the connecting rib on the right side of the reinforcing plate extends out of the right side of the steel box body. The connecting rib on the left side of the reinforcing plate is alternately arranged with the connecting rib on the right side of the reinforcing plate.

4. The caisson foundation structure of the three-dimensional parking garage according to claim 1 is characterized in that: The cross-sectional area of ​​the top plate of the steel box located at the lower layer is larger than the cross-sectional area of ​​the bottom plate of the corresponding steel box located at the upper layer, and a step is formed between the top plate of the steel box located at the lower layer and the bottom plate of the corresponding steel box located at the upper layer.

5. The caisson foundation structure of the three-dimensional parking garage according to claim 4 is characterized in that: A weld is provided at the step.

6. The caisson foundation structure of the three-dimensional parking garage according to any one of claims 1 to 5, characterized in that: The outer surface of the front panel is provided with a crossbeam for connecting the steel structure frame of the stereo garage.

7. The caisson foundation structure of the three-dimensional car park according to claim 6 is characterized in that: The crossbeam is a concave structure formed by bending a plate.

8. The caisson foundation structure of the three-dimensional parking garage according to claim 7 is characterized in that: An operating hole is provided on the crossbeam near the bending portion.

Images