crown beam

Abstract

The utility model discloses a crown beam, specifically relates to the technical field of foundation pit maintenance, through setting up bottom plate, partition and precast beam, the jack plug for installing the external steel sheet pile is formed on the bottom plate, the steel sheet pile is inserted in the jack plug, the partition is installed on the top of bottom plate, the top of precast beam forms and pours the groove, and the reinforcement cage is placed in the pouring groove, and the pouring groove can pour the concrete to form the crown beam, so that the utility model discloses when using through adopting the method of assembly type construction, realizes the assembly construction of crown beam, and ensures the construction efficiency of crown beam.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit maintenance technology, and in particular to capping beams. Background Technology

[0002] The capping beam is typically a cast-in-place concrete structure formed on top of steel sheet piles during construction. The specific forming process involves installing a formwork on top of the steel sheet piles, installing a reinforcing cage inside the formwork after the formwork is installed, and then pouring concrete to form the capping beam.

[0003] In the existing technology, the construction efficiency of the cap beam is affected and reduced because the manufacturing process requires formwork and in-situ casting. Utility Model Content

[0004] The main purpose of this utility model is to propose a cap beam, which aims to solve the technical problem that the construction efficiency of cap beams is affected and reduced due to the need for formwork and cast-in-place operations during the manufacturing process.

[0005] To achieve the above objectives, this utility model proposes a crown beam, comprising:

[0006] A base plate having insertion holes for installing external steel sheet piles, wherein steel sheet piles are inserted into the insertion holes;

[0007] A partition plate, said partition plate being mounted on top of the base plate; and,

[0008] A precast beam, the top of which has a casting groove, a steel cage is placed in the casting groove, and concrete can be poured into the casting groove to form the cap beam.

[0009] In one embodiment, the bottom wall of the casting trough is formed with a plurality of spaced-apart reinforcing bar extension holes, and an extension reinforcing bar is inserted into each of the reinforcing bar extension holes. All the extension reinforcing bars are connected to the reinforcing bar cage.

[0010] In one embodiment, the partition plate has a reinforcing bar hole at the position corresponding to the reinforcing bar extension hole, and each of the extending reinforcing bars can extend downward to the corresponding reinforcing bar hole.

[0011] In one embodiment, the system further includes connecting holes that pass sequentially through the precast beam, the central diaphragm, and the bottom plate, with a connector installed in the connecting holes.

[0012] In one embodiment, the connector includes:

[0013] Bolts, wherein the bolts are disposed through the connecting holes; and,

[0014] A connecting sleeve is threadedly engaged with the bolt, and the connecting sleeve is installed on the side of the base plate away from the middle partition. The bolt can deform the connecting sleeve and fasten the base plate, the middle partition, and the precast beam.

[0015] In one embodiment, the connecting sleeve includes:

[0016] A threaded sleeve, wherein the threaded sleeve is threadedly engaged with the bolt, and one end of the threaded sleeve is connected to the end of the base plate opposite to the middle partition plate; and,

[0017] Multiple protrusions are distributed circumferentially around the outer periphery of the threaded sleeve. The bolt can deform the threaded sleeve and move the protrusions to abut against the base plate.

[0018] In one embodiment, the connectors are multiple and spaced apart.

[0019] In one embodiment, the precast beam has two slots at one end along its length and a snap-fit ​​block at the other end that matches the number of slots.

[0020] In one embodiment, the precast beam is a reinforced concrete precast beam.

[0021] In one embodiment, both the base plate and the partition plate are steel plates.

[0022] The technical solution of this utility model involves setting up a base plate, a middle partition plate, and a precast beam. The base plate has insertion holes for installing external steel sheet piles, and steel sheet piles are inserted into the insertion holes. The middle partition plate is installed on the top of the base plate, and a casting groove is formed on the top of the precast beam. A reinforcing cage is placed in the casting groove, and concrete can be poured into the casting groove to form a cap beam. This utility model achieves the prefabricated construction of the cap beam by adopting a prefabricated construction method, thus ensuring the construction efficiency of the cap beam. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the crown beam as an example of this utility model;

[0025] Figure 2 for Figure 1A schematic diagram of the heat dissipation structure in the example;

[0026] Figure 3 for Figure 1 A schematic diagram of the heat dissipation structure from another perspective in the example.

[0027] Explanation of icon numbers:

[0028] 100, base plate; 200, diaphragm plate; 300, precast beam; 110, insertion hole; 400, sheet pile; 310, casting trench; 320, rebar extension hole; 210, rebar hole; 330, connecting hole; 500, bolt; 600, connecting sleeve; 610, threaded sleeve; 620, protrusion; 340, slot; 350, snap-fit ​​block.

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0031] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] This utility model proposes a crown beam.

[0034] Please see Figures 1 to 3 In one embodiment of this utility model, the crown beam includes a base plate 100, a middle partition plate 200, and a precast beam 300. The base plate 100 has a hole 110 for installing an external steel sheet pile 400. The steel sheet pile 400 is inserted into the hole 110. The middle partition plate 200 is installed on the top of the base plate 100. The top of the precast beam 300 has a casting groove 310. A steel cage is placed in the casting groove 310, and concrete can be poured into the casting groove 310 to form the crown beam.

[0035] In this embodiment, by setting a base plate 100, a middle partition plate 200, and a precast beam 300, the base plate 100 has a hole 110 for installing an external steel sheet pile 400, and the steel sheet pile 400 is inserted into the hole 110. The middle partition plate 200 is installed on the top of the base plate 100, and a casting groove 310 is formed on the top of the precast beam 300. A steel cage is placed in the casting groove 310, and concrete can be poured into the casting groove 310 to form a cap beam. This utility model achieves the prefabricated construction of the cap beam by adopting a prefabricated construction method, thus ensuring the construction efficiency of the cap beam.

[0036] Specifically, in the manufacturing process of the capping beam of this application, firstly, insertion holes 110 are formed on the base plate 100. Insertion holes 110 are used to install external steel sheet piles 400. By inserting the steel sheet piles 400 into the insertion holes 110, a fixed connection between the steel sheet piles 400 and the base plate 100 is achieved, thereby ensuring the stability of the capping beam. Secondly, a diaphragm plate 200 is installed on the top of the base plate 100. The diaphragm plate 200 enhances the overall strength of the capping beam. Then, a precast beam 300 is installed on top of the diaphragm plate 200. A casting groove 310 is opened on the top of the precast beam 300. A reinforcing cage is placed in the casting groove 310, and concrete is poured into it, forming the capping beam through concrete pouring.

[0037] In one embodiment, the bottom wall of the casting trough 310 is formed with a plurality of spaced rebar extension holes 320, and an extension rebar is inserted into each rebar extension hole 320. All extension rebars are connected to the rebar cage.

[0038] Specifically, a casting groove 310 is provided at the top of the precast beam 300, and a reinforcing cage is placed inside the casting groove 310. Multiple reinforcing bar extension holes 320 are provided on the bottom wall of the casting groove 310. The reinforcing bar extension holes 320 penetrate the bottom wall of the groove, and each extension hole 320 contains an extension reinforcing bar. One end of the extension reinforcing bar extends into the casting groove 310 and connects to the reinforcing cage, while the other end extends into the interior of the precast beam 300. The reinforcing cage and the precast beam 300 are connected as a whole by the extension reinforcing bars. When concrete is poured into the casting groove 310, the concrete can encapsulate the reinforcing cage and the extension reinforcing bars, forming a cap beam structure with higher strength.

[0039] The reinforcing cage is placed in the casting trench 310, and the extended reinforcing bars are inserted into the casting trench 310 through the reinforcing bar extension holes 320. The extended reinforcing bars are connected to the reinforcing cage by welding or binding. The other end of the extended reinforcing bars extends into the interior of the precast beam 300 and connects with the reinforcing structure inside the precast beam 300, thereby realizing the reinforcing connection between the reinforcing cage and the precast beam 300. This allows the concrete poured in the casting trench 310 to form an integral structure with the precast beam 300 through the reinforcing cage and the extended reinforcing bars, improving the overall strength and stability of the cap beam. The structural connection is firm and reasonable.

[0040] In one embodiment, the partition plate 200 has a reinforcing bar hole 210 at the position corresponding to the reinforcing bar extension hole 320, and each extending reinforcing bar can extend downward to the corresponding reinforcing bar hole 210.

[0041] Specifically, the diaphragm 200 is installed on top of the base slab 100, and the precast beam 300 is installed on top of the diaphragm 200. The diaphragm 200 and the precast beam 300 are connected by reinforcing bars through reinforcing bar holes 210. The reinforcing bar holes 210 on the diaphragm 200 correspond to the reinforcing bar extension holes 320 on the bottom wall of the casting trough 310, and the reinforcing bar holes 210 penetrate the upper and lower surfaces of the diaphragm 200. The extension reinforcing bars extend downward from inside the casting trough 310, passing through the reinforcing bar extension holes 320 and 210 in sequence. The lower end of the extension reinforcing bars can extend into the interior of the base slab 100 or connect with the reinforcing bar structure on the base slab 100, thereby achieving reinforcing bar connectivity between the reinforcing cage, the precast beam 300, the diaphragm 200, and the base slab 100.

[0042] A reinforcing cage is placed inside the casting trench 310. Extending reinforcing bars are connected to the cage and pass through the precast beam 300 via extension holes 320. They then extend downwards through reinforcing bar holes 210 on the diaphragm 200. The extension reinforcing bars are connected to the diaphragm 200 via the reinforcing bar holes 210. The lower end of the extension reinforcing bars can also connect to the reinforcing structure within the base slab 100, allowing the reinforcing cage to form a continuous reinforcing structure with the diaphragm 200 and the base slab 100 via the extension reinforcing bars. When concrete is poured into the casting trench 310, the concrete integrates with the entire reinforcing structure, significantly improving the overall strength and stability of the cap beam.

[0043] In one embodiment, it also includes a connecting hole 330 that passes through the precast beam 300, the middle diaphragm 200 and the bottom plate 100 in sequence, and a connector is installed in the connecting hole 330.

[0044] Specifically, the precast beam 300, the diaphragm 200, and the base plate 100 are all provided with connecting holes 330. The connecting holes 330 on each component correspond to each other and are interconnected, forming a connecting channel that runs through the entire cap beam structure. Connectors are installed in the connecting holes 330. The length of the connector is greater than the total length of the connecting hole 330, allowing it to pass through the precast beam 300, the diaphragm 200, and the base plate 100 simultaneously, thus fixing the three components together as a whole. The lower end of the connector can be fixedly connected to the lower surface of the base plate 100, and the upper end can be fixedly connected to the upper surface of the precast beam 300, achieving a reliable connection between the precast beam 300, the diaphragm 200, and the base plate 100.

[0045] The precast beam 300 is installed on top of the diaphragm 200, which in turn is installed on top of the base plate 100. Connectors pass through connection holes 330 to connect and fix the three components. The connectors can be fixed to the connection holes 330 by threaded connections or welding to form a stable connection structure between the precast beam 300, the diaphragm 200, and the base plate 100. Understandably, the connectors enhance the connection strength between the precast beam 300, the diaphragm 200, and the base plate 100. When concrete is poured in the casting groove 310, the connectors work together with the concrete to further improve the overall strength of the cap beam.

[0046] In one embodiment, the connector includes a bolt 500 and a connecting sleeve 600. The bolt 500 passes through the connecting hole 330 and is threadedly engaged with the bolt 500. The connecting sleeve 600 is installed on the side of the base plate 100 away from the middle partition 200. The bolt 500 can deform the connecting sleeve 600 and fasten the base plate 100, the middle partition 200 and the precast beam 300.

[0047] Specifically, the connecting hole 330 sequentially penetrates the precast beam 300, the diaphragm 200, and the base plate 100. The bolt 500 is inserted into the connecting hole 330 from the upper surface of the precast beam 300. The shank of the bolt 500 passes through the precast beam 300, the diaphragm 200, and the base plate 100, while the lower end of the bolt 500 extends beyond the lower surface of the base plate 100. The connecting sleeve 600 is installed on the lower surface of the base plate 100. The inner wall of the connecting sleeve 600 is threaded, and the lower end of the bolt 500 engages with the threaded connection of the connecting sleeve 600. When the bolt 500 rotates, it pulls the connecting sleeve 600 tight, causing the connecting sleeve 600 to deform and tighten upwards, thereby securely connecting the base plate 100, the diaphragm 200, and the precast beam 300 into a single unit.

[0048] The precast beam 300, diaphragm 200, and base plate 100 are aligned via connecting holes 330, and bolts 500 pass through the connecting holes 330 to connect the three components. The bolts 500 and connecting sleeves 600 are connected via threaded engagement. The head of the bolt 500 abuts against the upper surface of the precast beam 300, and the connecting sleeve 600 abuts against the lower surface of the base plate 100, allowing the bolts 500 to clamp and fix the precast beam 300, diaphragm 200, and base plate 100 through the connecting sleeves 600. Understandably, the connecting sleeve 600 deforms under the action of the bolts 500. This deformation increases the contact area with the base plate 100, improving the reliability of the connection. When concrete is poured in the casting trench 310, the bolts 500 and connecting sleeves 600 can share the load with the concrete, further enhancing the overall strength of the cap beam.

[0049] In one embodiment, the connecting sleeve 600 includes a threaded sleeve 610 and a plurality of protrusions 620. The threaded sleeve 610 is threadedly engaged with the bolt 500, and one end of the threaded sleeve 610 is connected to the end of the base plate 100 away from the middle partition 200. The plurality of protrusions 620 are distributed circumferentially around the outer periphery of the threaded sleeve 610. The bolt 500 can deform the threaded sleeve 610 and drive the protrusions 620 to move to abut against the base plate 100.

[0050] Specifically, bolt 500 passes through the connecting holes 330 of precast beam 300, diaphragm 200, and base plate 100, and the lower end of bolt 500 is threaded into threaded sleeve 610. The upper end of threaded sleeve 610 is adjacent to the lower surface of base plate 100, and the outer circumferential surface of threaded sleeve 610 is provided with multiple circumferentially evenly distributed protrusions 620. When bolt 500 rotates, bolt 500 can drive threaded sleeve 610 to move upward and deform. When threaded sleeve 610 deforms, protrusions 620 fold outward and abut against the lower surface of base plate 100, forming a multi-point supported connection structure.

[0051] The threaded sleeve 610 engages with the bolt 500 via threads on its inner wall. The protrusions 620 on the outer periphery of the threaded sleeve 610 initially slope downwards. As the bolt 500 rotates, causing the threaded sleeve 610 to move upwards, the protrusions 620 contact the lower surface of the base plate 100 and gradually fold outwards until they completely abut against the lower surface of the base plate 100, thus forming a stable connection between the threaded sleeve 610 and the base plate 100 through the multiple protrusions 620. Understandably, the number and spacing of the protrusions 620 can be adjusted according to actual needs; increasing the number of protrusions 620 provides a larger connection area and further enhances the reliability of the connection.

[0052] In one embodiment, there are multiple connectors, which are spaced apart.

[0053] Specifically, multiple connection holes 330 are provided on the precast beam 300, the diaphragm 200, and the base plate 100. These connection holes 330 correspond to and are interconnected, and each connection hole 330 contains a connector. These connectors are spaced apart along the length of the precast beam 300, the diaphragm 200, and the base plate 100, maintaining a preset spacing to form a multi-point connection structure. Each connector can independently connect and fix the precast beam 300, the diaphragm 200, and the base plate 100, and the combined action of these connectors ensures a reliable connection between the three components.

[0054] Multiple connectors are installed in corresponding connecting holes 330, and are connected to the connecting holes 330 by threaded engagement or other fixing methods. The spacing of the connectors is determined according to the length of the cap beam and the load-bearing requirements, so that the connectors can be evenly distributed throughout the entire cap beam structure, with each connector bearing a corresponding connection load. Understandably, the spaced distribution of multiple connectors can avoid stress concentration, and when the cap beam is subjected to external loads, the load can be evenly transferred through multiple connectors, improving the overall load-bearing capacity of the cap beam.

[0055] In one embodiment, the precast beam 300 has two slots 340 at one end along its length and a snap-fit ​​block 350 at the other end that is the same number as the slots 340 and engages with them.

[0056] Specifically, one end of the precast beam 300 has two slots 340, which are spaced apart laterally along the precast beam 300. The other end of the precast beam 300 has two corresponding locking blocks 350, whose shape and size match the slots 340, enabling precise locking. When multiple precast beams 300 need to be connected, the locking block 350 at one end of a precast beam 300 can be inserted into the slot 340 at the end of an adjacent precast beam 300, forming a stable locking connection structure.

[0057] The precast beam 300 is connected at the end via a slot 340 and a snap-fit ​​block 350. After the snap-fit ​​block 350 is inserted into the slot 340, it restricts the relative vertical and lateral displacement of the precast beam 300. The arrangement of two slots 340 and snap-fit ​​blocks 350 provides dual protection for the connection of the precast beam 300, preventing loosening that may occur with a single-point connection. Understandably, the cooperation of the slots 340 and snap-fit ​​blocks 350 ensures the precise positioning of adjacent precast beams 300, guaranteeing the integrity of the precast beams 300 after connection. When concrete is poured into the casting groove 310, the snap-fit ​​structure can withstand the load generated during the pouring process, preventing displacement of the precast beam 300.

[0058] It should be specifically and clearly stated that the precast beam 300 is a reinforced concrete precast beam 300. The bottom slab 100 and the middle diaphragm 200 are both steel plates.

[0059] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A crown beam, characterized in that, include: A base plate having insertion holes for installing external steel sheet piles, wherein steel sheet piles are inserted into the insertion holes; A partition plate, said partition plate being mounted on top of the base plate; and, A precast beam, the top of which has a casting groove, a steel cage is placed in the casting groove, and concrete can be poured into the casting groove to form the cap beam.

2. The crown beam as described in claim 1, characterized in that, The bottom wall of the casting trough has multiple spaced rebar extension holes, each of which contains an extension rebar, and all the extension rebars are connected to the rebar cage.

3. The crown beam as described in claim 2, characterized in that, The partition plate has a reinforcing bar hole corresponding to the position of the reinforcing bar extension hole, and each of the extending reinforcing bars can extend downward to the corresponding reinforcing bar hole.

4. The crown beam as described in claim 3, characterized in that, It also includes connecting holes that pass through the precast beam, the diaphragm and the bottom plate in sequence, and connecting parts are installed in the connecting holes.

5. The crown beam as described in claim 4, characterized in that, The connector includes: Bolts, wherein the bolts are disposed through the connecting holes; and, A connecting sleeve is threadedly engaged with the bolt, and the connecting sleeve is installed on the side of the base plate away from the middle partition. The bolt can deform the connecting sleeve and fasten the base plate, the middle partition, and the precast beam.

6. The cap beam as described in claim 5, characterized in that, The connecting sleeve includes: A threaded sleeve, wherein the threaded sleeve is threadedly engaged with the bolt, and one end of the threaded sleeve is connected to the end of the base plate opposite to the middle partition plate; and, Multiple protrusions are distributed circumferentially around the outer periphery of the threaded sleeve. The bolt can deform the threaded sleeve and move the protrusions to abut against the base plate.

7. The crown beam as described in claim 4, characterized in that, The connector is a plurality of such connectors, which are spaced apart.

8. The crown beam as described in any one of claims 1 to 7, characterized in that, The precast beam has two slots at one end along its length and a snap-fit ​​block at the other end that matches the number of slots.

9. The crown beam as described in any one of claims 1 to 7, characterized in that, The precast beam is a reinforced concrete precast beam.

10. The crown beam as described in any one of claims 1 to 7, characterized in that, Both the base plate and the middle partition are made of steel plates.

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