Structure beneficial to hollow slab hinge joint pouring and shear connection

Abstract

The utility model relates to the technical field of bridge design and construction, and provides a structure beneficial to hollow slab hinge joint pouring and shear connection. The hinge joints are formed by a plurality of hollow slabs at certain intervals in the width direction. The hinge joint distance of a traditional hollow slab is increased, the hinge joint participates in shear resistance within the full height range, the U-shaped steel plate is arranged at the position of the bottom plate of the hollow slab, and the steel plate is squeezed into a notch reserved in the bottom plate through elasticity of the steel plate to serve as a bottom die for pouring hinge joint concrete and plays a role of a dripping eave in the operation period. Shear-resistant assemblies which are arranged in a staggered mode are embedded in webs, facing the hinge joints, of the hollow slabs, and each shear-resistant assembly is composed of a perforated steel plate embedded in the corresponding hollow slab, a connecting steel plate and an outwards-extending shear nail. By means of the measures, the shear-resistant area, the pouring quality, the shear-resistant strength and the attractiveness of the hollow slab hinge joint are improved; the technical problems that in the prior art, a gap of only 1 cm exists between every two adjacent hollow plate bottom plates, hinge joint concrete is difficult to pour, the connection strength is poor, and water seepage is prone to occurring are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge design and construction, and specifically refers to a structure that is beneficial to hollow slab hinge joint casting and shear connection. Background Art

[0002] Hollow slab bridges are widely used in highways of all levels in my country due to their simple structure and convenient construction. The traditional hollow slab hinge joint is designed with deep hinge joints, which are prone to unreliable connection problems during operation. Traditional hollow slab bridges are too focused on the simplicity of prefabrication and erection. Their typical structural characteristics are that the gap between the bottom plates of adjacent hollow slabs is small. After splicing two by two, only a 1cm narrow gap is left in the bottom plate. The height of the narrow gap generally accounts for 15% to 20% of the total height of the web. Since the concrete in the narrow gap area cannot be effectively bonded, it directly causes the hollow slab section to lose 10% to 15% of its shear resistance. Since the size of the hinge joint at the web is also relatively narrow, it also causes problems such as difficulty in positioning and connecting the steel bars in the hinge joint and poor concrete pouring quality.

[0003] Common defects of hinged joints include: the 1cm thick mortar between the bottom plates falls off first and water seepage at the hinged joints. Water seepage causes the steel bars in the hinged joints to rust and expand, as well as the concrete to break and fall off, resulting in large-scale water stains and alkali blooming on the bottom plate of the hollow slab, which is not conducive to the landscape. In the operating environment where deicing salt is used in winter, the damage process of the hinged joints and the bottom plate will be greatly accelerated. The effective connection of the hinged joint is the basis for the hollow slabs to jointly bear the vehicle load. After the hinged joint connection gradually fails, the hollow slabs gradually change from the joint stress state to the single plate stress state, and the load of the bridge is greatly increased, which seriously endangers the safe operation of the bridge. In short, the hinged joint structure is the main bottleneck restricting the development of hollow slabs. Utility Model Content

[0004] The utility model aims at the deficiencies of the prior art and provides a structure which is conducive to the casting of hinged joints and shear connection of hollow slabs, so as to solve the technical problems in the prior art such as the poor connection strength of the bottom plates between two adjacent hollow slabs, the inconvenience in installing hinged joint steel bars, the inconvenience in vibrating concrete and the poor connection strength of the hinged joints due to the hinged joints being too narrow.

[0005] The utility model provides a structure that is conducive to the pouring of hinged joints and shear connection of hollow slabs, comprising: a plurality of hollow slabs, wherein the plurality of hollow slabs are spaced apart along the width direction of the hollow slabs to form hinged joints for pouring concrete; wherein the spacing between any two adjacent hollow slabs is 3 cm to 5 cm.

[0006] Preferably, it also includes a bottom sealing assembly, which is located at the bottom of the hinged joint and covers the hinged joint. In two adjacent hollow panels, the bottom edge of one hollow panel is connected to the bottom edge of another hollow panel through the bottom sealing assembly, and the bottom sealing assembly is used to seal the bottom of the hinged joint.

[0007] Preferably, the bottom of the side wall of the hollow plate has a groove filled with asphalt waterproof paste; the bottom sealing assembly includes an elastic baffle, a first insertion component and a second insertion component; the elastic baffle is "U"-shaped, located below the hinged joint and covers the hinged joint; the first insertion component is connected to an open end of the "U"-shaped elastic baffle, and the first insertion component is arranged in the asphalt waterproof paste of the groove of one of the hollow plates between two adjacent hollow plates; the second insertion component is arranged in the asphalt waterproof paste of the groove of the other hollow plate between two adjacent hollow plates.

[0008] Preferably, it further comprises a plurality of anti-shear components, and the side wall of each hollow plate facing the hinged seam is provided with at least one anti-shear component.

[0009] Preferably, the shear-resistant component includes a perforated steel plate, a connecting steel plate and at least one shear nail; the perforated steel plate is vertically arranged in the hollow plate and extends along the width direction of the hollow plate, and the perforated steel plate has a steel bar penetration hole; the connecting steel plate is located in the hinged seam and connected to the perforated steel plate, and extends along the length direction of the hinged seam; the shear nail is located in the hinged seam and connected to the connecting steel plate.

[0010] Preferably, there are multiple shear nails, and the multiple shear nails are arranged at intervals along the height direction of the hinged joint.

[0011] Preferably, the interior of the hollow slab includes at least one main web reinforcement, and the main web reinforcement is penetrated into the perforated steel plate through the reinforcement penetration hole, so that the perforated steel plate is arranged in the hollow slab.

[0012] Preferably, there are multiple main web reinforcements, and one main web reinforcement corresponds to one reinforcement through hole.

[0013] Preferably, in each hinged joint, along the width direction of the hollow slab, the shear resistant components on adjacent hollow slabs are staggered.

[0014] The advantages of the utility model are:

[0015] By optimizing the design, the spacing between two adjacent hollow slabs is adjusted to 3 cm to 5 cm, for example, 5 cm, which effectively solves a series of technical problems caused by the too narrow hinge joint in the prior art.

[0016] Firstly, the appropriate increase in the spacing increases the thickness of the concrete poured in the hinged joint, significantly enhancing the connection strength between two adjacent hollow slabs, allowing the entire cross-sectional height of the hollow slab to participate in shear resistance, thereby improving the shear resistance of the overall structure; moreover, this improved design provides more sufficient operating space, facilitating the installation of hinged joint steel bars, allowing them to be easily placed in the preset position, avoiding technical problems caused by the inability to correctly install the hinged joint steel bars due to space limitations. In addition, the larger spacing also makes it easier for construction workers to vibrate the concrete.

[0017] Secondly, in conjunction with increasing the beam spacing, U-shaped steel plates are installed in the reserved notches on the bottom plate. The U-shaped steel plates can be used as the bottom formwork for the hinged joint concrete. The U-shaped steel plates have a good sealing effect and can prevent concrete leakage during vibration. At the same time, they can be used as drip eaves during operation to prevent large-area water stains and alkali efflux on the bottom plate of the hollow slab after water seepage from the hinged joints.

[0018] Thirdly, the staggered shear components can be conveniently embedded in the web during the prefabrication of the hollow slab, with the shear nails facing the hinge joint. The steel bar arrangement in the hinge joint can be consistent with the conventional hollow slab design, and no additional connecting steel bars are needed. The connection between the shear nails and the hinge joint concrete alone is sufficient to provide the required shear bearing capacity. In addition, the designed shear keys solve the connection and positioning problems of the reinforcement steel bars (web main bars) and the perforated steel plates in the prefabrication plant, greatly improving the reliability of the construction. The staggered shear keys also greatly improve the simplicity and speed of construction after the beam is erected.

[0019] In summary, by increasing the distance between the hinged joints and increasing the bottom cover components and shear components of the U-shaped steel plate, the shear area of ​​the hinged joint of the hollow slab can be increased under the joint effect, ensuring the pouring quality, shear strength and aesthetics of the hinged joint concrete, and ensuring the safety, stability and durability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is an elevation view of the structure of the utility model which is beneficial to the pouring of hinged joints and shear connection of hollow slabs.

[0022] Figure 2 It is a schematic diagram of the structure of the utility model which is beneficial to the pouring of hinged joints and shear connection of hollow slabs.

[0023] Figure 3 It is a schematic diagram of the hollow slab and the shear-resistant component of the utility model.

[0024] Figure 4 It is a schematic diagram of the back cover assembly of the utility model.

[0025] Reference numerals:

[0026] 100, hollow slab; 110, hinged joint; 120, groove; 200, shear-resistant component; 210, perforated steel plate; 211, steel bar insertion hole; 220, connecting steel plate; 230, shear nail; 300, bottom cover component; 310, elastic baffle; 320, first insert component; 330, second insert component; 400, first hinged joint steel bar; 500, second hinged joint steel bar; W, width direction of hollow slab; L, length direction of hinged joint; H, height direction of hinged joint. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present embodiment and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present embodiment.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this embodiment, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this embodiment, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0031] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] Figures 1 to 4 The figure shows a structure that is conducive to the casting of hinged joints and shear connections of hollow slabs provided by the present invention. As can be seen from the figure, the structure that is conducive to the casting of hinged joints and shear connections of hollow slabs provided by the present invention includes a plurality of hollow slabs 100, and the plurality of hollow slabs 100 are arranged at intervals along the width direction W of the hollow slabs 100 to form hinged joints 110 for casting concrete; wherein the spacing between any two adjacent hollow slabs 100 is 3 cm to 5 cm.

[0033] In specific implementation, the spacing between two adjacent hollow slabs 100 is adjusted to 3 cm to 5 cm, for example, 5 cm, which effectively solves a series of technical problems in the prior art caused by the hinge joint 110 being too narrow. By appropriately increasing the spacing, the thickness of the concrete poured in the hinge joint 110 is increased, which significantly enhances the connection strength between two adjacent hollow slabs 100, so that the entire cross-sectional height of the hollow slab 100 participates in shear resistance, thereby improving the shear resistance of the overall structure; and this improved design provides more sufficient operating space, which is convenient for installing hinge joint steel bars, so that they can be easily placed in the preset position, avoiding the technical problem of being unable to correctly install hinge joint steel bars due to space limitations. In addition, the larger spacing also facilitates the construction personnel to vibrate the concrete.

[0034] According to one embodiment of the utility model, a bottom cover assembly 300 may also be included, which is located at the bottom of the hinged joint 110 and covers the hinged joint 110. In the hollow panels 100 adjacent to each other, the bottom edge of one hollow panel 100 is connected to the bottom edge of another hollow panel 100 through the bottom cover assembly 300, and the bottom cover assembly 300 is used to seal the bottom of the hinged joint 110. Among them, the bottom of the side wall of the hollow plate 100 has a groove 120, and the groove 120 is filled with asphalt waterproof paste; the bottom cover assembly 300 includes an elastic baffle 310, a first insertion component 320 and a second insertion component 330; the elastic baffle 310 is "U"-shaped, located below the hinged joint 110, and covers the hinged joint 110; the first insertion component 320 is connected to an open end of the "U"-shaped elastic baffle 310, and the first insertion component 320 is arranged in the asphalt waterproof paste of the groove 120 of one of the hollow plates 100 adjacent to each other; the second insertion component 330 is arranged in the asphalt waterproof paste of the groove 120 of the other hollow plate 100 adjacent to each other.

[0035] In the specific implementation, in conjunction with increasing the beam spacing, a U-shaped steel plate is installed at the reserved notch position of the bottom plate. The U-shaped steel plate is the elastic baffle 310. The U-shaped steel plate can be used as a bottom mold for the hinged joint concrete. The U-shaped steel plate has a good sealing effect and can prevent concrete leakage during vibration. At the same time, it can be used as a drip eave during operation to prevent large-area water stains and alkali efflorescence from forming on the bottom plate of the hollow slab 100 after water seepage from the hinged joint 110.

[0036] It is understandable that as the distance is increased, the shear resistance can be fully protected. Then, the U-shaped steel plate can be installed after the distance is increased. The U-shaped steel plate is used as the bottom mold. Compared with the mortar and wooden board bottom sealing, the U-shaped steel plate can adapt to the situation of inconsistent seam width. Because there will generally be errors during construction, for example, in a hinged joint, the left side may be 3.2 cm wide and the other side may be 4.1 cm wide. Because the U-shaped steel plate itself is elastic, it can ensure that there is no leakage. It is made into a U-shape instead of a rectangle, which can facilitate dripping after water seepage in the hinged joint in the later stage. That is, it can be used as a drip eaves during operation.

[0037] According to an embodiment of the present invention, a plurality of shear resistant components 200 may be included, and at least one shear resistant component 200 is disposed on the side wall of each hollow slab 100 facing the hinged seam 110 .

[0038] In specific implementation, the above structural setting enhances the shear resistance between the hollow slabs 100. The shear resistance assembly 200 can further stabilize the connection between adjacent hollow slabs 100, prevent relative slippage when subjected to force, and improve the safety and stability of the entire structure.

[0039] In this embodiment, the shear-resistant component 200 includes a perforated steel plate 210, a connecting steel plate 220 and at least one shear nail 230; the perforated steel plate 210 is vertically arranged in the hollow plate 100 and extends along the width direction W of the hollow plate 100, and the perforated steel plate 210 has a steel bar penetration hole 211; the connecting steel plate 220 is located in the hinged joint 110, connected to the perforated steel plate 210, and extends along the length direction L of the hinged joint 110; the shear nail 230 is located in the hinged joint 110 and connected to the connecting steel plate 220.

[0040] During specific implementation, the shear force is transmitted by the shear nails 230 , so as to strengthen the mechanical transmission between the concrete at the hinge joint 110 and the hollow slab 100 and between the hollow slab 100 , thereby enhancing the integrity of the structure.

[0041] According to an embodiment of the present invention, there are a plurality of shear nails 230 , and the plurality of shear nails 230 are arranged at intervals along the height direction H of the hinged joint 110 .

[0042] In specific implementation, there are multiple shear studs 230 and they are arranged at intervals along the height direction H of the hinged joint 110, which increases the effective area of ​​shear force transmission, makes the shear bearing capacity between the hollow plates 100 more evenly distributed, and improves the bearing capacity and anti-destructiveness of the structure.

[0043] According to one embodiment of the present invention, the interior of the hollow slab 100 includes at least one main web reinforcement, which is passed through the perforated steel plate 210 through the reinforcement passing hole 211 so that the perforated steel plate 210 is arranged in the hollow slab 100 .

[0044] During specific implementation, the main reinforcement of the web is passed through the reinforcement passing holes 211 of the perforated steel plate 210 and is inserted into the hollow slab 100, thereby achieving effective connection between the main reinforcement of the web and the perforated steel plate 210, thereby closely matching the main reinforcement system inside the hollow slab 100 with the shear resistance component 200, and further enhancing the structural stability of the hollow slab 100.

[0045] According to an embodiment of the present invention, there are multiple main web reinforcements, and one main web reinforcement corresponds to one reinforcement through hole 211 .

[0046] In a specific implementation, one main web reinforcement corresponds to one reinforcement through hole 211 , which ensures a reliable connection between the main web reinforcement and the perforated steel plate 210 and improves the structural strength of the hollow slab 100 .

[0047] According to an embodiment of the present invention, in each hinged joint 110 , along the width direction W of the hollow slab 100 , the shear resistant components 200 on adjacent hollow slabs 100 are staggered.

[0048] In specific implementation, the shear assemblies 200 on adjacent hollow slabs 100 are staggered, which helps to disperse the load, reduce stress concentration, and improve the overall durability and crack resistance of the structure.

[0049] According to one embodiment of the utility model, it also includes a first hinged joint steel bar 400 and a second hinged joint steel bar 500, which can be arranged in the hinged joint 110; the first hinged joint steel bar 400 and the second hinged joint steel bar 500 can belong to two hollow slabs during prefabrication, and when placed on the bridge, the two can be welded together after overlapping, wherein the first hinged joint steel bar 400 is an N1 steel bar; the second hinged joint steel bar 500 is an N2 steel bar.

[0050] In summary, the utility model has at least the following characteristics and advantages:

[0051] Firstly, appropriately increasing the spacing increases the thickness of the concrete poured in the hinged joint 110, significantly enhancing the connection strength between the two adjacent hollow slabs 100, allowing the entire cross-sectional height of the hollow slab 100 to participate in shear resistance, thereby improving the shear resistance of the overall structure; and, this improved design provides more sufficient operating space, facilitating the installation of hinged joint steel bars, allowing them to be easily placed in a preset position, avoiding technical problems caused by the inability to correctly install the hinged joint steel bars due to space limitations. In addition, the larger spacing also makes it easier for construction workers to vibrate the concrete.

[0052] Secondly, in conjunction with increasing the beam spacing, a U-shaped steel plate is installed at the reserved notch position of the bottom plate. The U-shaped steel plate can be used as a bottom formwork for hinged joint concrete. The U-shaped steel plate has a good sealing effect and can prevent concrete leakage during vibration. At the same time, it can be used as a drip eave during operation to prevent large-area water stains and alkali efflux on the bottom plate of the hollow slab 100 after water seepage from the hinged joint 110.

[0053] Thirdly, the staggered shear assemblies 200 can be conveniently embedded in the web when the hollow slab 100 is prefabricated, and the shear nails 230 thereof face the hinge joint 110. The arrangement of the steel bars in the hinge joint 110 can be consistent with the conventional hollow slab design, and no additional connecting steel bars are required. The connection between the shear nails 230 and the hinge joint concrete alone is sufficient to provide the bearing capacity required for shear resistance. In addition, the designed shear keys solve the connection and positioning problem of the reinforcing steel bars (web main bars) and the perforated steel plate 210 in the prefabrication plant, greatly improving the reliability of the construction. The staggered shear keys also greatly improve the simplicity and speed of construction after beam erection.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or modes described in this specification and the features of the different embodiments or modes, without contradiction.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A structure that is conducive to the casting of hollow slab hinge joints and shear connection, characterized in that: include: A plurality of hollow plates (100), wherein the plurality of hollow plates (100) are arranged at intervals along a width direction (W) of the hollow plates (100) to form hinged joints (110) for pouring concrete; Wherein, the spacing between two adjacent hollow plates (100) is 3 cm to 5 cm.

2. The structure facilitating the casting of hinged joints and shear connection of hollow slabs according to claim 1 is characterized in that: It also includes a bottom sealing component (300) located at the bottom of the hinged joint (110) and covering the hinged joint (110); in the hollow plates (100) adjacent to each other, the bottom edge of one of the hollow plates (100) is connected to the bottom edge of another hollow plate (100) through the bottom sealing component (300); the bottom sealing component (300) is used to seal the bottom of the hinged joint (110).

3. The structure facilitating the casting of hinged joints and shear connection of hollow slabs according to claim 2 is characterized in that: The bottom of the side wall of the hollow plate (100) is provided with a groove (120), and the groove (120) is filled with asphalt waterproof paste; The bottom cover assembly (300) comprises an elastic baffle (310), a first insert component (320) and a second insert component (330); The elastic baffle (310) is in a "U" shape, is located below the hinged slit (110), and covers the hinged slit (110); The first insertion component (320) is connected to an open end of the "U"-shaped elastic baffle (310), and the first insertion component (320) is arranged in the asphalt waterproof paste of the groove (120) of one of the hollow plates (100) of the two adjacent hollow plates (100); The second insertion component (330) is arranged in the asphalt waterproof paste of the groove (120) of another hollow plate (100) of the hollow plates (100) adjacent to each other.

4. The structure for facilitating hollow slab hinge joint casting and shear connection according to any one of claims 1 to 3, characterized in that: It also comprises a plurality of anti-shear components (200), and the side wall of each hollow plate (100) facing the hinged seam (110) is provided with at least one anti-shear component (200).

5. The structure facilitating hollow slab hinge joint casting and shear connection according to claim 4 is characterized in that: The shear-resistant assembly (200) comprises a perforated steel plate (210), a connecting steel plate (220) and at least one shear nail (230); The perforated steel plate (210) is vertically arranged in the hollow plate (100) and extends along the width direction (W) of the hollow plate (100), and the perforated steel plate (210) has steel bar penetration holes (211); The connecting steel plate (220) is located in the hinged slit (110), is connected to the perforated steel plate (210), and is extended along the length direction (L) of the hinged slit (110); The shear nail (230) is located in the hinge joint (110) and is connected to the connecting steel plate (220).

6. The structure facilitating the casting of hinged joints and shear connection of hollow slabs according to claim 5 is characterized in that: There are a plurality of shear pins (230), and the plurality of shear pins (230) are arranged at intervals along the height direction (H) of the hinged joint (110).

7. The structure facilitating the casting of hinged joints and shear connection of hollow slabs according to claim 6 is characterized in that: The hollow slab (100) comprises at least one main web reinforcement inside, and the main web reinforcement is penetrated into the perforated steel plate (210) through the reinforcement penetration hole (211), so that the perforated steel plate (210) is arranged inside the hollow slab (100).

8. The structure facilitating the casting of hinged joints and shear connection of hollow slabs according to claim 7 is characterized in that: There are multiple main web reinforcements, and one main web reinforcement corresponds to one reinforcement through hole (211).

9. The structure facilitating hollow slab hinge joint casting and shear connection according to claim 4, characterized in that: In each hinged joint (110), along the width direction (W) of the hollow slab (100), the shear resistant components (200) on adjacent hollow slabs (100) are staggered.

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