A pre-embedded section of a through-panel bridge, a water retaining sill mold, and a method for pouring a water retaining sill

Abstract

The present invention relates to the technical field of bridge construction, and provides a pre-embedded section for a through-panel bridge, a water stop sill mold, and a water stop sill pouring method. The pre-embedded section for the through-panel bridge includes a steel plate frame. At least one row of through holes is provided on each of the two shorter sides of the rectangular steel plate frame. Channels are welded on the outer sides of the sides where the through holes are located, and the openings of the channels correspond to the through holes. The through holes are connected to a bridge connection piece through a first connecting piece and then connected to the bridge. A second connecting piece for connecting the template of the body to be poured is welded to the lower part of the rectangular steel plate frame. This pre-embedded section for the through-panel bridge is installed before the installation of the bridge. When installing the bridge, no holes need to be reserved. After the concrete is poured, the pre-embedded section for the through-panel bridge does not need to be removed, and no filling is required for the remaining gap after the bridge is installed. Thereby, the installation steps of the bridge are simplified, the effect of fireproof sealing is improved, and the outside of the bridge is also smoother.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge construction, in particular to a pre-embedded section for a bridge passing through a plate, a water retaining sill mold and a water retaining sill pouring method. Background Art

[0002] In engineering residential buildings and office buildings, there is a distribution well on each floor. There are several busbars and bridges in the distribution well. Since the distribution well needs to pass through the floor slab for laying, it is necessary to pass through the slab for the installation of the bridge. After installing the bridge, some owners also require a water retaining sill to be set around the hole. The water retaining sill can not only play a role in blocking water, but also prevent objects from falling into the electrical well. Moreover, in the project of creating a national award, it is a mandatory practice to set a water retaining sill around the bridge.

[0003] The existing technology is as follows: When pouring the floor slab, holes are reserved in advance. After the bridge passes through the hole, the remaining gaps need to be filled. The construction of the water retaining platform is carried out separately from the ground construction. Before the ground construction, the hole of the electrical well is blocked by a template all around, and then the floor concrete is poured. Later, concrete or mortar is used to make a water retaining sill around the hole.

[0004] The above methods for installing the bridge and making the water retaining sill mainly have the following deficiencies:

[0005] 1. When reserving the hole for the bridge, since the workers will consider the verticality adjustment allowance for the installation of the bridge, the length and width of the hole are usually 50-100 mm larger than the bridge. After the bridge passes through the reserved hole for installation, the gaps of the hole need to be filled with fireproof packs, fireproof mud and fireproof boards. However, this construction method is cumbersome in operation, and the fireproof sealing effect and the visual effect are not satisfactory.

[0006] 2. First, the ground construction is carried out and then the water retaining sill construction is carried out. It requires secondary construction. The connection between the water retaining sill and the ground is not good, the stability is poor, the construction difficulty is relatively high, and it is difficult to control the forming effect of the water retaining sill. Summary of the Invention

[0007] The purpose of the present invention is to overcome the problem in the prior art that when constructing a bridge, holes need to be reserved and the holes need to be filled after the construction is completed, and to provide a pre-embedded section for a bridge passing through a plate, a water retaining sill mold and a water retaining sill pouring method.

[0008] In order to achieve the above-mentioned invention purpose, the present invention provides the following technical solutions:

[0009] A pre-embedded section for a bridge passing through a plate, including a steel plate rectangular frame. At least one row of through holes is respectively provided on the two shorter sides of the steel plate rectangular frame. Channels are welded on the outer sides of the sides where the through holes are located, and the openings of the channels correspond to the through holes. The through holes are connected to a bridge connection piece through a first connecting piece and then connected to the bridge. A second connecting piece for connecting the template of the body to be poured is welded at the lower part of the steel plate rectangular frame.

[0010] The steel plate rectangular frame can be assembled from folded steel plates or multiple plates. Its size is consistent with the connected bridge frame, and its height is adapted to the sum of the floor thickness and the thickness of the decorative surface layer. If a water retaining sill is to be set, the height of the steel plate rectangular frame is adapted to the sum of the floor thickness, the thickness of the decorative surface layer and the height of the water retaining sill. The thickness of the embedded section of the through-plate bridge frame is determined according to the size of the bridge frame, its own rigidity and welding requirements.

[0011] The through holes are located at the shorter sides to facilitate connection of the two side plates of the bridge through the bridge connecting pieces, and the positions of the through holes are adapted to the mounting holes of the bridge connecting pieces.

[0012] The opening of the channel steel corresponds to the through hole, which seals the through hole and prevents concrete from seeping in.

[0013] The steel plate rectangular frame is fixed to the formwork of the body to be cast through the lower connecting parts, and acts as an inner mold when pouring concrete. After pouring, it is naturally close to the reserved holes. Therefore, it does not need to be removed after concrete pouring. There is no need to reserve holes in advance when installing the bridge, and there is no need to fill the remaining gaps after the bridge is installed. The construction is more convenient, the fireproof sealing effect is better, and the exterior of the bridge is smoother and more beautiful.

[0014] Preferably, the channel steel is a cold-bent member, and the notch of the channel steel has an inner curling edge, which is welded to the rectangular frame of the steel plate.

[0015] The inner curling of the channel steel increases the contact surface, which makes it more stable when welded together.

[0016] Preferably, the second connecting member is an angle iron.

[0017] There are fixed circular holes on the angle irons, and the size of the fixed circular holes is determined according to the size and weight of the embedded section of the through-plate bridge. The fixed nails are connected to the formwork of the body to be cast through the fixed circular holes, which can further ensure the verticality of the holes and improve the installation accuracy and qualified rate of the bridge.

[0018] When the angle iron and the channel steel are on the same side, the angle iron needs to be opened, and the size of the opening is determined by the size of the channel steel.

[0019] Preferably, there is a steel spring nut inside the channel steel, and the fixing bolt passes through the bridge frame connecting plate and is connected to the steel spring nut, and the bridge frame connecting plate is connected to the bridge frame through the connecting bolt B.

[0020] The fixing bolts may be hexagon socket head or hexagon socket head. The thread specifications involved may be M8, M10 and M12, and the length is selected according to actual needs.

[0021] Preferably, the through hole is a strip-shaped hole.

[0022] The size of the through hole is determined according to the size of the channel steel. Setting the through hole as a long hole facilitates the smooth adjustment of the fixing bolt and the connecting bolt B in the channel steel, and the section steel spring nut can also move along the direction of the through hole in the channel steel, facilitating the adjustment of the position of the bridge connecting piece.

[0023] Preferably, when the thickness of the bridge is greater than or equal to 100 mm, two rows of through holes are set.

[0024] When two rows of through holes are set, the distance between the two rows of through holes is the same as the hole pitch of the bridge connecting piece; the width of the channel steel is increased accordingly, and the size of the section steel spring nut is determined according to the size of the channel steel, and its bolt hole and spring should also be increased accordingly.

[0025] A water retaining sill mold includes a through-plate bridge embedded section and a water retaining sill shaping frame. The water retaining sill shaping frame is connected to the through-plate bridge embedded section through a bracket.

[0026] The water retaining sill shaping frame is a rectangular frame, the length and width of which are adapted to the length and width of the bridge, the thickness is determined according to its own rigidity and welding requirements, and the height of itself is determined according to the height of the water retaining sill.

[0027] The height difference between the through-plate bridge embedded section and the water retaining sill shaping frame is determined according to the sum of the height of the water retaining sill and the thickness of the floor slab, and the spacing is determined according to the length and width of the cross-section of the water retaining sill body.

[0028] Adopting a water retaining sill mold of the present invention enables the forming effect of the water retaining sill to be controllable and facilitates the installation of the bridge connecting piece more. And during pouring, the water retaining sill and the floor slab can be poured together, and the connectivity and stability of the water retaining sill are also better.

[0029] Preferably, the bracket includes a rectangular tube. The bracket includes a rectangular tube. The bracket includes a first vertical rod, a connecting rod and a second vertical rod. The first vertical rod is connected to the outer side surface of the water retaining sill shaping frame. The connecting rod connects the first vertical rod and the second vertical rod. The second vertical rod is connected to the section steel spring nut in the channel steel through a connecting bolt A passing through the through hole.

[0030] The size of the bracket is determined according to the strength and operating space. When two rows of through holes are set in the steel plate rectangular frame, the width of the bracket can be increased and the fixing of the connecting bolt A can be increased to meet the requirements of the water retaining sill mold.

[0031] Preferably, a first reinforcing member is welded to the bottom of the outer side of the water retaining sill shaping frame, and a second reinforcing member is welded to the connecting rod.

[0032] The first reinforcing member is welded outside the water retaining sill shaping frame to strengthen the rigidity of the water retaining sill shaping frame. At the same time, it is also welded to the bracket and supported by the bracket. The size of the first reinforcing member is determined according to its own rigidity and welding requirements.

[0033] The second reinforcing member is welded between the connecting rod and the water retaining sill shaping frame to strengthen the structure of the bracket to resist the impact during concrete pouring.

[0034] A method for pouring a water retaining sill, comprising the following steps:

[0035] S1. Install the embedded section of the through-plate bridge: Determine the position on the formwork of the to-be-poured body according to the design, and fix the embedded section of the through-plate bridge on the formwork of the to-be-poured body;

[0036] S2. Install the water retaining sill shaping frame: Weld the support on the outside of the water retaining sill shaping frame, place the water retaining sill shaping frame and the support above the embedded section of the through-plate bridge, and connect the connecting bolt A through the second vertical rod and the through-hole to the profiled steel spring nut inside the channel steel to complete the installation of the water retaining sill shaping frame;

[0037] S3. Pour the concrete;

[0038] S4. Remove the water retaining sill shaping frame and the support to complete the pouring of the water retaining sill.

[0039] Before pouring the concrete, the upper opening of the embedded section of the through-plate bridge should be sealed with tape or filled with sawdust, etc. By using such a method, the pouring of concrete can be avoided.

[0040] During the process of pouring the concrete, the water retaining sill is initially leveled.

[0041] By using this pouring method, the water retaining sill can be formed in one time, simplifying the construction process, and the water retaining sill has good connectivity with the ground and is more stable.

[0042] Compared with the prior art, the beneficial effects of the present invention:

[0043] By using the above-mentioned embedded section of the through-plate bridge, no holes need to be reserved during the construction of the bridge, simplifying the construction steps. The bridge can be installed once the holes are formed in one time, reducing the losses of labor, materials and working hours caused by the process of removing the formwork after using the mold to reserve holes in the past. And during the installation process, fireproof filler is stuffed in the embedded section of the through-plate bridge, and there is no need to stuff the holes outside the bridge again, making the fireproof effect more effective and the appearance more beautiful; when using the above-mentioned water retaining sill mold, the water retaining sill shaping frame can be stably fixed above the embedded section of the through-plate bridge, ensuring the level of the water retaining sill during pouring and also ensuring the fitting connection between the water retaining sill and the bridge; when using the above-mentioned water retaining sill mold to pour the water retaining sill, the construction steps are simplified, the construction process is simple, reducing various construction losses caused by separate construction in the past, also reducing the construction difficulty, and the one-time forming of the water retaining sill enables the forming effect of the water retaining sill to be controlled, the connectivity between the water retaining sill and the ground is good, and the stability of the water retaining sill is also good. Description of the drawings:

[0044] Figure 1 It is a structural diagram of an embedded section of a through-plate bridge in Embodiment 1;

[0045] Figure 2Structural decomposition diagram of a pre-embedded section of a through-panel bridge frame in Embodiment 1;

[0046] Figure 3 Schematic diagram of the connection between the pre-embedded section of the through-panel bridge frame and the bridge frame in Embodiment 1;

[0047] Figure 4 Schematic diagram of a pre-embedded section of a through-panel bridge frame in Embodiment 2;

[0048] Figure 5 Schematic diagram of the structure of a water retaining sill mold in Embodiment 3;

[0049] Figure 6 Schematic diagram of the connection between the water retaining sill shaping frame and the support in Embodiment 3;

[0050] Figure 7 Flowchart of a method for pouring a water retaining sill according to the present invention;

[0051] Figure 8 Schematic diagram of the water retaining sill before form removal during pouring;

[0052] Figure 9 Schematic diagram of the water retaining sill after form removal after pouring is completed;

[0053] Figure 10 Schematic diagram after the bridge frame installation is completed.

[0054] Markings in the figure: 1 - Pre-embedded section of the through-panel bridge frame, 101 - Steel plate rectangular frame, 102 - Channel steel, 103 - Open fixing angle iron, 104 - Fixing round hole, 105 - Section steel spring nut, 106 - Fixing bolt, 107 - Fixing angle iron, 108 - Through hole, 109 - Template of the body to be poured, 110 - First connecting piece, 111 - Second connecting piece, 2 - Water retaining sill mold, 201 - Support, 2011 - First vertical rod, 2012 - Connecting rod, 2013 - Second vertical rod, 202 - Water retaining sill shaping frame, 203 - First reinforcing piece, 204 - Second reinforcing piece, 205 - Connecting bolt A, 3 - Bridge frame, 301 - Bridge frame connecting piece, 302 - Installation hole for the bridge frame grounding wire, 303 - Connecting bolt B, 4 - Water retaining sill. Detailed implementation manners

[0055] The present invention will be further described in detail below in combination with test examples and specific implementation manners. However, it should not be understood that the scope of the above-mentioned subject matter of the present invention is limited to the following embodiments. All technologies implemented based on the content of the present invention belong to the scope of the present invention.

[0056] Embodiment 1

[0057] As Figure 1-3 And Figure 5As shown in the figure, this embodiment provides a pre-embedded section of a through-panel cable tray, which includes a steel plate rectangular frame 101. At least one row of through-holes 108 are provided on each of the two shorter sides of the steel plate rectangular frame 101. Channels 102 are welded on the outer sides of the sides where the through-holes 108 are located. The openings of the channels 102 correspond to the through-holes 108. The through-holes 108 are connected to the cable tray connection piece 301 through the first connecting piece 110 and then connected to the cable tray 3. A second connecting piece 111 for connecting the template 109 of the to-be-poured body is welded to the lower part of the steel plate rectangular frame 101.

[0058] As Figure 2 shown, the inside of the steel plate rectangular frame 101 is hollow, without a cover on the top and a bottom on the bottom. The steel plate rectangular frame 101 is formed by folding a steel plate. In other embodiments, it can also be formed by welding four rectangular steel plates. The length and width of the steel plate rectangular frame 101 are the same as those of the cable tray connection piece 301. Its steel plate thickness is determined according to the size of the cable tray 3, its own rigidity and welding requirements, generally 1.5 mm to 3.0 mm.

[0059] The channel 102 is a cold-formed member. The channel opening of the channel 102 has an inward curling edge, and the inward curling edge is welded to the steel plate rectangular frame 101. Therefore, the inward curling edge part is parallel to the welding surface. The length of the channel 102 is equal to the height of the steel plate rectangular frame 101.

[0060] The position of the through-hole 108 is determined according to the cable tray connection piece 301. As Figure 2-3 shown, the through-holes of the cable tray connection piece 301 and the through-holes 108 are both centered. The through-hole 108 is a strip-shaped hole, and its size is determined according to the channel 102, which allows the first connecting piece 110 to smoothly move along the direction of the through-hole 108 inside the channel 102, facilitating the adjustment of the position of the cable tray connection piece 301.

[0061] As Figure 1-2 shown, the second connecting piece 111 is an angle iron. The length of the second connecting piece 111 is equal to the length and width of the corresponding side of the steel plate rectangular frame 101. The upper part of the second connecting piece 110 is parallel to the welding surface of the steel plate rectangular frame 101, and the lower part extends outward from the steel plate rectangular frame 101. The folded corner is parallel welded to the bottom of the steel plate rectangular frame 101. There are 2 fixing round holes 104 on the wide side and 3 on the long side at the bottom of the fixing angle iron 107. In other embodiments, it can be determined according to the size of the pre-embedded section 1 of the through-panel cable tray. Fixing nails can be passed through the fixing round holes 104 and nailed to the template to fix the pre-embedded section 1 of the through-panel cable tray.

[0062] As Figure 1-2As shown, when there is an overlapping part between the position where the second connecting piece 111 is to be welded and the channel steel 102, the overlapping part of the second connecting piece 111 with the channel steel 102 is removed to form an open fixed angle iron 103, and then the open fixed angle iron 103 is welded on the shorter sides of the channel steel 102 and the steel plate rectangular frame 101, so that the open fixed angle iron 103 does not block the notch of the channel steel 102 after welding and fits tightly with the outside of the channel steel 102, and its welding height is the same as that of the fixed angle iron 107 on the other side.

[0063] There is a profiled steel spring nut 105 inside the channel steel 102. The fixing bolt 106 passes through the bridge connecting piece 301 and is connected to the profiled steel spring nut 105. The bridge connecting piece 301 is connected to the bridge 3 through the connecting bolt B303.

[0064] As Figure 3 shown, when the bridge 3 is grounded by a jumper wire, the jumper wire can pass through the gap inside the channel steel 102 and be fixed with bolts to the bridge grounding wire installation holes 302 on the upper and lower sections of the bridge 3 on the floor slab.

[0065] In the present invention, the fixing bolt 106 can be a bolt with an internal hexagonal head or an external hexagonal head. The thread specifications involved may be M8, M10, and M12, and the length is selected according to actual requirements.

[0066] Embodiment 2

[0067] A through-board bridge embedded section of the present invention has a structure substantially the same as that of Embodiment 1, except that when the thickness of the bridge is greater than 100 mm, multiple rows of through holes 108 can be provided. As Figure 4 shown, two rows of through holes 108 are provided respectively, and the widths of the channel steels 102 provided on both sides of the through-board bridge embedded section 1 are also increased accordingly. The distance between the two rows of through holes 108 needs to be determined according to the hole pitch on the bridge connecting piece 301. In addition, there may be deviations from the above 100 mm according to the actual production conditions of each manufacturer.

[0068] Embodiment 3

[0069] A water retaining sill mold of the present embodiment, as Figure 5-6 shown, includes the through-board bridge embedded section 1 of Embodiment 1 or 2 and a water retaining sill shaping frame 202. The water retaining sill shaping frame 202 is connected to the through-board bridge embedded section 1 through a bracket 201.

[0070] As Figure 5-6 shown, the water retaining sill shaping frame 202 is folded from a steel plate and can also be welded by 4 steel plates in other implementation manners. The water retaining sill shaping frame 202 has no cover and no bottom and is hollow inside. The water retaining sill shaping frame 202 is a rectangular frame, and its height itself is determined according to the height of the water retaining sill 4. As Figure 8As shown in the figure. The height difference between the embedded section 1 of the through-panel bridge and the formwork fixing frame 202 of the water retaining sill is determined according to the sum of the height of the water retaining sill 4 and the floor slab thickness, and the distance between the two is determined according to the length and width of the cross-section of the water retaining sill 4. The distance between the bottom edge of the formwork fixing frame 202 of the water retaining sill and the formwork 109 of the to-be-poured body is determined according to the floor slab thickness. The steel plate thickness of the formwork fixing frame 202 of the water retaining sill is determined according to its own rigidity and welding requirements, usually 2.0mm - 3.0mm.

[0071] The support 201 is welded by square tubes, and its specification dimensions should fully consider the strength and operating space requirements. The support 201 includes a first vertical rod 2011, a connecting rod 2012 and a second vertical rod 2013.

[0072] The first vertical rod 2011 is parallel to the channel steel 102 and is welded to the outer side of the corresponding side of the formwork fixing frame 202 of the water retaining sill and the channel steel 102, and the first vertical rod 2011 is perpendicularly welded to the upper part of the first reinforcement 203.

[0073] The connecting rod 2012 connects the first vertical rod 2011 and the second vertical rod 2013, and the included angles between the first vertical rod 2011 and the connecting rod 2012, and between the connecting rod 2012 and the second vertical rod 2013 are both 90° and are in the same plane.

[0074] The second vertical rod 2013 is inside the formwork fixing frame 202 of the water retaining sill. There is a through hole on the second vertical rod 2013, and the connecting bolt A205 passes through the through hole to connect and fix the formwork fixing frame 202 of the water retaining sill and the embedded section 1 of the through-panel bridge.

[0075] The first reinforcement 203 is welded outside the formwork fixing frame 202 of the water retaining sill and is welded by square tubes. The size of the first reinforcement 203 is determined according to the size of the formwork fixing frame 202 of the water retaining sill and its own rigidity and welding requirements. If the self-strength of the formwork fixing frame 202 of the water retaining sill meets the requirements, the first reinforcement 203 can be not used.

[0076] The second reinforcement 204 is welded between the first vertical rod 2011 and the second vertical rod 2013 and is close to the connecting rod 2012. The second reinforcement 204 is welded by square tubes, and its size is determined according to the distance between the first vertical rod 2011 and the second vertical rod 2013.

[0077] Embodiment 4

[0078] As Figure 7 shown, a method for pouring a water retaining sill includes the following steps:

[0079] S1. Install the embedded section 1 of the through-panel bridge as in Embodiment 1 or 2: Determine the position on the formwork 109 of the to-be-poured body according to the design, and fix the embedded section 1 of the through-panel bridge on the formwork 109 of the to-be-poured body;

[0080] S2. Install the formwork fixing frame 202 of the water retaining sill:

[0081] As Figure 5-6 shown, weld the bracket 201 outside the water retaining sill shaping frame 202. After positioning the water retaining sill shaping frame 202 and the bracket 201, use an angle electric wrench to pass the connecting bolt A 205 through the second vertical rod 2013 and the through hole 108 to connect with the profiled steel spring nut 105 placed inside the channel steel 102, ensuring that the highest point of the water retaining sill shaping frame 202 is at the same height as the steel plate rectangular frame 101, and complete the installation of the water retaining sill shaping frame 202;

[0082] S3. Concrete pouring: Before concrete pouring, seal the upper opening of the through - plate bridge pre - embedded section 1 with tape or fill it with wood chips, etc., to avoid concrete pouring in. During pouring, conduct preliminary leveling of the water retaining sill 4;

[0083] S4. Remove the water retaining sill shaping frame 202 and the bracket 201 to complete the pouring of the water retaining sill 4: As Figure 8 shown, after initial setting, the water retaining sill shaping frame 202 and the bracket 201 should be removed in a timely manner.

[0084] After the water retaining sill shaping frame 202 and the bracket 201 are removed, install the bridge 3. When installing the bridge 3, first install the profiled steel spring nut 105 into the channel steel 102, and connect the bridge connecting piece 301 with the through - plate bridge pre - embedded section 1 through the fastening action of the fixing bolt 106 on the profiled steel spring nut 105. At this time, do not tighten the fixing bolt 106 to facilitate the up - and - down adjustment of the bridge connecting piece 301. Then place the bridge 3 in the installation position and connect the bridge 3 with the bridge connecting piece 301 using the connecting bolt B 303. After all the connecting bolts B 303 are installed and aligned, tighten all the connecting bolts B 303. At this time, the bridge 3 and the through - plate bridge pre - embedded section 1 have been connected, as Figure 3 shown.

[0085] The formwork removal effect after the water retaining sill pouring is as Figure 9 shown.

[0086] The final effect of the bridge installation is as Figure 10 shown.

[0087] The above - mentioned are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A water retaining sill mold, characterized in that: It includes a through-plate bridge support embedded section (1) and a water retaining sill shaping frame (202), and the water retaining sill shaping frame (202) is connected to the through-plate bridge support embedded section (1) through a bracket (201); The through-plate bridge support embedded section (1) includes a steel plate rectangular frame (101). At least one row of through holes (108) are respectively provided on the two shorter sides of the steel plate rectangular frame (101). Channels (102) are welded on the outer sides of the sides where the through holes (108) are located. The openings of the channels (102) are arranged corresponding to the through holes (108). The through holes (108) are connected to a bridge connecting piece (301) through a first connecting piece (110) and then connected to a bridge (3). A second connecting piece (111) for connecting a template (109) of the body to be poured is welded to the lower part of the steel plate rectangular frame (101); A profiled steel spring nut (105) is arranged inside the channel (102). A fixing bolt (106) passes through the bridge connecting piece (301) and is connected to the profiled steel spring nut (105). The bridge connecting piece (301) is connected to the bridge (3) through a connecting bolt B (303); The bracket (201) includes a rectangular tube. The bracket (201) includes a first vertical rod (2011), a connecting rod (2012), and a second vertical rod (2013). The first vertical rod (2011) is connected to the outer side surface of the water retaining sill shaping frame (202). The connecting rod (2012) connects the first vertical rod (2011) and the second vertical rod (2013). The second vertical rod (2013) is connected to the profiled steel spring nut (105) through a connecting bolt A (205) passing through the through hole (108); 2. The water retaining sill mold according to claim 1, characterized in that: The channel (102) is a cold-formed member, and the notch of the channel (102) has an inward-rolled edge, and the inward-rolled edge is welded to the steel plate rectangular frame (101); 3. The water retaining sill mold according to claim 1, characterized in that: The second connecting piece (111) is an angle iron; 4. A water retaining sill mold according to any one of claims 1-3, characterized in that: The through hole (108) is a strip-shaped hole; 5. The water retaining sill mold according to claim 4, characterized in that: When the thickness of the bridge (3) is greater than or equal to 100 mm, two rows of through holes (108) are provided; 6. The water retaining sill mold according to claim 1, characterized in that: A first reinforcing member (203) is welded to the outer bottom of the water retaining sill shaping frame (202), and a second reinforcing member (204) is welded to the connecting rod (2012); 7. A method for pouring a water retaining sill, characterized in that, Applied to a water retaining sill mold according to any one of claims 1-5, it includes the following steps: S1. Install the through-plate bridge support embedded section (1): Determine the position on the template (109) of the body to be poured according to the design, and fix the through-plate bridge support embedded section (1) on the template (109) of the body to be poured; S2. Install the water retaining sill shaping frame (202): Weld the bracket (201) to the outside of the water retaining sill shaping frame (202). Place the water retaining sill shaping frame (202) and the bracket (201) above the through-plate bridge support embedded section (1). Pass the connecting bolt A (205) through the second vertical rod (2013) and the through hole (108) and connect it to the profiled steel spring nut (105) inside the channel (102) to complete the installation of the water retaining sill shaping frame (202); S3. Pour concrete; S4. Demolish the water retaining sill shaping frame (202) and the support (201) to complete the casting of the water retaining sill (4).

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