Prefabricated frame beam and prefabricated rectangular slope protection structure

Abstract

The present invention discloses an assembled lattice beam and an assembled rectangular slope protection structure, which relates to the field of slope engineering and solves the problems of cast-in-place reinforced concrete lattice beams with many construction steps, complex process flow, many quality control points, and difficulty in ensuring engineering quality. The technical solution adopted by the present invention is: an assembled lattice beam, including five modules, namely a middle assembly module, a top assembly module, a bottom assembly module, a side assembly module and a corner assembly module, and the crossbeam and longitudinal beam of each module form at least one rectangular frame; the five modules are respectively reserved with joints. The five modules can be spliced ​​on the slope to form a rectangular slope protection structure. The present invention converts the cast-in-place lattice beam into an assembled structure, and the five modules are prefabricated and processed in the project and maintained, reducing the on-site formwork support and steel bar binding work; the five modules are embedded on the stable slope surface, reducing the amount of foundation trench excavation and improving product quality.

Description

Technical Field

[0001] The invention relates to the field of slope engineering, in particular to an assembled lattice beam for slope protection, and a slope protection structure arranged in a rectangular shape by the lattice beam. Background Art

[0002] Frame beam slope protection is mostly used for stable soil slopes. Its main function is to protect the slope surface, prevent the soil on the slope surface from loosening and loss, enhance the integrity of the slope, and ensure the integrity of the slope surface. The frame beams used in the existing projects for frame beam slope protection are various in form. Rectangular frame beams are widely used, usually cast-in-place reinforced concrete structures. The main process flow of cast-in-place reinforced concrete frame beam slope protection structure is: excavation of foundation trench, support formwork, tying steel bars, concrete pouring, concrete demolding and curing. The entire construction has many steps, complex process flow, and many quality control points, and the quality of engineering products is difficult to guarantee.

[0003] The shortcomings of cast-in-place reinforced concrete frame beam slope protection structure are as follows: (1) Before the construction of cast-in-place reinforced concrete frame beam slope protection structure, it is necessary to excavate the foundation trench, which is time-consuming and labor-intensive. After manual excavation, the size and accuracy deviations are large. Moreover, if the loose soil in the foundation trench is not cleaned up, the cast-in-place frame beam and the slope surface will become loose, affecting the frame beam slope protection effect. (2) There are many processes such as formwork support, steel bar binding, concrete pouring and maintenance, which takes a long time and is time-consuming and labor-intensive. (3) During the on-site construction of formwork support and steel bar binding, due to the influence of environmental and human factors, the size of the frame beam and the internal steel bar spacing and arrangement accuracy are difficult to control, and the quality assurance rate of steel bar joint construction is low. (4) During the on-site pouring and maintenance of concrete, the vibration is often not dense, and the maintenance is not in place, resulting in quality defects of the frame beam structure; after the on-site frame beam is cast and formed, the cross-sectional size has deviations, and it is easy to crack if the later maintenance is not in place. (5) The overall on-site factors lead to the decline of the quality of the final structural product or even fail to meet the structural design requirements, resulting in high overall project costs. Summary of the invention

[0004] The invention transforms the cast-in-place reinforced concrete rectangular lattice beam into an assembled structure, thereby solving the problems of many construction steps, complicated process flow, many quality control points and difficult to ensure engineering quality of the cast-in-place reinforced concrete lattice beam.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: an assembled lattice beam includes five modules, namely a middle assembly module, a top assembly module, a bottom assembly module, a side assembly module and a corner assembly module; each module includes a crossbeam and a longitudinal beam, each module has at least two crossbeams and at least two longitudinal beams, and the crossbeams and the longitudinal beams are arranged vertically and crosswise, and the crossbeams and the longitudinal beams of each module form at least one rectangular lattice; joints are reserved on all sides of the middle assembly module, joints are reserved on the left and right sides and the bottom of the top assembly module, joints are reserved on the left and right sides and the top of the bottom assembly module, joints are reserved on the upper and lower sides, left or right sides of the side assembly module, and joints are reserved on the upper or lower side, left or right sides of the corner assembly module.

[0006] Furthermore, any two of the three modules of the top assembly module, the bottom assembly module and the side assembly module have the same structure or the structures of the three modules are the same.

[0007] Furthermore, the joints of each module have the same structure, and the distance between the joint and the adjacent intersection of the cross beam and the longitudinal beam is half of the distance between two adjacent intersections of the cross beam and the longitudinal beam.

[0008] Furthermore, the bottoms of the cross beam and the longitudinal beam are both in a pointed cone shape, and the direction of the pointed cone is perpendicular to the plane where the cross beam and the longitudinal beam are located and is arranged downward.

[0009] Specifically: both the horizontal beams and longitudinal beams are reinforced concrete, steel formwork is set on the outside of the reinforced concrete, and longitudinal reinforcement is reserved at the joints of the horizontal beams and longitudinal beams; the upper part of the longitudinal section of the horizontal beams and longitudinal beams is rectangular and the lower part is inverted triangle, and angle steel is placed at the bottom of the horizontal beams and longitudinal beams, and the angle steel is fixedly connected to the steel formwork.

[0010] Furthermore, at least one of the two side surfaces of the cross beam and the longitudinal beam is provided with an anti-slip structure continuously or at intervals.

[0011] Specifically: the anti-skid structure is that the vertical surfaces on both sides of the cross beam and the longitudinal beam are wavy, concave-convex or serrated, or the vertical surfaces of the cross beam and the longitudinal beam are provided with anti-skid piles, and the anti-skid piles are reinforced concrete and are cast integrally with the cross beam or the longitudinal beam.

[0012] More specifically: the intersection of the cross beam and the longitudinal beam is a node section, a flat section is arranged in the middle of two adjacent node sections, and a tooth section is between the node section and the flat section; flat sections are arranged at the joints of the five modules, and a tooth section is arranged between the node section and the flat section at the joint; the teeth of the tooth section are formed by the alternating arrangement of wave crests and wave troughs, annular stirrups are arranged in the wave crests, and the wave crests and wave troughs are arranged vertically to form an anti-slip structure.

[0013] The present invention also provides an assembled rectangular slope protection structure, which also solves the problems of many construction steps, complicated process flow, many quality control points, and difficult to ensure engineering quality of cast-in-place reinforced concrete frame beams. The technical solution adopted by the present invention is: an assembled rectangular slope protection structure, a rectangular slope protection structure is formed on the slope by any of the above-mentioned assembled frame beams, wherein a middle assembly module or a plurality of middle assembly modules are connected by joints to form a rectangular overall structure arranged in the middle of the slope, a top assembly module is arranged on the top of the middle assembly module, and the top assembly module is located at the top of the slope, a bottom assembly module is arranged on the bottom of the middle assembly module, and the bottom assembly module is located at the bottom of the slope, side assembly modules are respectively arranged on the left and right sides of the middle assembly module, and the side assembly modules are located on both sides of the slope, and four corner assembly modules are respectively arranged at the four corners of the middle assembly module; any two modules of the five modules are connected to each other through joints, and the same modules are also connected to each other through joints.

[0014] Furthermore, the cross beams and longitudinal beams of the five modules are all reinforced concrete, longitudinal reinforcement is reserved at the joints of each module, the joints are connected by lap plates, sleeves are arranged on both sides of the lap plates, the longitudinal reinforcement on both sides of the connection position are respectively located in the sleeves and welded and fixed, concrete is poured at the lap plates and connected as a whole.

[0015] The beneficial effects of the present invention are as follows: the prefabricated frame beam transforms the cast-in-place frame beam into a prefabricated structure, and the five modules are prefabricated and processed in the project and maintained, with a high quality assurance rate; and the on-site formwork support and steel bar binding work are significantly reduced, which is conducive to the close control of the frame beam size and steel bar arrangement. The prefabricated rectangular arrangement slope protection structure adopts embedded installation on the stable slope surface, which reduces the amount of foundation trench excavation and improves the product molding quality.

[0016] The structures of any two modules of the top assembly module, the bottom assembly module and the side assembly module are the same, or the structures of the three modules are the same, which can further simplify the five modules into four or three specifications, simplifying the requirements for prefabrication of the five modules. The bottoms of the crossbeams and longitudinal beams are both pointed cone-shaped, and the slope does not need to be excavated on a large scale. After a small excavation, the assembled frame beams can be directly driven in, and the degree of integration between the assembled frame beams and the slope surface is increased. Anti-slip structures are set on the sides of the crossbeams and longitudinal beams, so that the assembled frame beams can be better integrated with the slope to avoid slippage. The joints are connected by lap plates, which can reduce the lap length of the longitudinal reinforcement and simplify the construction difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic plan view of an embodiment of the assembled lattice beam of the present invention.

[0018] Figure 2 yes Figure 13D structural diagram of the middle assembly module.

[0019] Figure 3 It is a plan view of the middle assembly module of the assembled lattice beam of the present invention.

[0020] Figure 4 It is a plan view of the side assembly module of the assembled lattice beam of the present invention.

[0021] Figure 5 It is a plan view of the top assembly module of the assembled lattice beam of the present invention.

[0022] Figure 6 It is a plan view of the corner assembly module of the assembled lattice beam of the present invention.

[0023] Figure 7 It is a partial structural composition diagram of the assembled lattice beam of the present invention.

[0024] Figure 8 yes Figure 7 A three-dimensional structural diagram of the node segment shown.

[0025] Fig. 9 yes Figure 7 The three-dimensional structure diagram of the tooth mouth segment shown.

[0026] Fig.10 yes Figure 7 The three-dimensional structural diagram of the flattened section shown.

[0027] Fig.11 It is a schematic diagram of a reinforcement arrangement method of the assembled frame of the present invention.

[0028] Fig.12 yes Figure 7 Schematic diagram of reinforcement of the longitudinal section of the flat section, node section and tooth section at the trough.

[0029] Fig.13 yes Figure 7 Schematic diagram of reinforcement of the longitudinal section of the tooth section at the wave crest.

[0030] Fig.14 It is a schematic diagram of joints in the assembled rectangular slope protection structure of the present invention being connected by lap plates.

[0031] Fig.15 yes Fig.14 Enlarged view of the middle lap plate.

[0032] Figure numerals: middle assembly module I, top assembly module II, bottom assembly module III, side assembly module IV, corner assembly module V; node segment a, tooth segment b, flat segment c; steel formwork 1, angle steel 2; top longitudinal reinforcement 31, upper structural longitudinal reinforcement 32, waist longitudinal reinforcement 33, lower structural longitudinal reinforcement 34, bottom longitudinal reinforcement 35, annular stirrups 36, upper structural reinforcement 37, lower structural reinforcement 38; lap plate 4, sleeve 41. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings.

[0034] The assembled frame beam of the present invention is used to be arranged on the slope to form a slope protection structure. Figure 1 As shown in the figure, the assembled frame beam includes five modules, which are the middle assembly module I, the top assembly module II, the bottom assembly module III, the side assembly module IV and the corner assembly module V according to the position of each module after the slope construction. The middle assembly module I is surrounded by reserved joints for arrangement in the middle of the slope, as shown in the figure. Figure 1 and Figure 2 As shown. The left and right sides and the bottom of the top assembly module II are reserved with joints, and the top of the top assembly module II does not need to be reserved with joints, so it is arranged at the top of the slope. The left and right sides and the top of the bottom assembly module III are reserved with joints, and the bottom of the bottom assembly module III does not need to be reserved with joints, so it is arranged at the bottom of the slope. The upper and lower sides of the side assembly module IV are reserved with joints, and the left or right side is reserved with joints, so it is arranged on the left and right sides of the slope. The upper or lower side of the corner assembly module V is reserved with joints, and the left or right side is reserved with joints, so it is arranged at the four corners of the slope.

[0035] Each of the five modules includes a crossbeam and a longitudinal beam, and the structures of the crossbeam and the longitudinal beam may be the same or different, for example, the crossbeam and the longitudinal beam are both reinforced concrete structures and have the same structure. Each module has at least two crossbeams and at least two longitudinal beams, and the crossbeams and the longitudinal beams are arranged vertically and crosswise, and the crossbeams and the longitudinal beams of each module form at least one rectangular frame. The frame may be rectangular or square, preferably square. The five modules may be of five different specifications. In order to reduce the specifications of the five modules and simplify the process of factory production of assembled frame beams, the structures of any two modules of the top assembly module II, the bottom assembly module III and the side assembly module IV are the same, or the structures of the three modules are the same, so that the specifications of the five modules can be simplified to four or three. The reserved joints of the five modules are connected on site during construction, and the joints are used to connect between the same modules and also for connecting between two modules. In order to facilitate the production of the five modules and on-site construction, the joints of the five modules are exactly the same. For example, the same longitudinal reinforcement joints are reserved for the joints of the five modules. During construction, the longitudinal reinforcement joints are connected on site, and the formwork is supported and concrete is poured to achieve the connection. In order to make the frame formed by connecting two modules of the same or different types the same size as the frame of the module, the distance between the joint and the adjacent intersection of the horizontal beam and the longitudinal beam is half the distance between the two adjacent intersections of the horizontal beam and the longitudinal beam.

[0036] After the foundation trench is excavated for the slope, the five modules need to be placed in the foundation trench respectively. In order to facilitate the insertion of the five modules into the foundation trench and increase the integration of the frame beam and the slope surface, the bottom of the crossbeam and the longitudinal beam are both in a pointed cone shape, and the direction of the pointed cone is perpendicular to the plane where the crossbeam and the longitudinal beam are located and arranged downward. For example, the crossbeam and the longitudinal beam are both reinforced concrete, and the upper part of the longitudinal section of the crossbeam and the longitudinal beam is rectangular and the lower part is inverted triangle. In order to enhance the strength of the pointed cone part at the bottom of the crossbeam and the longitudinal beam, angle steel is set at the bottom of the crossbeam and the longitudinal beam. The inner side of the angle steel can be directly fixedly connected to the structural steel bars of the crossbeam and the longitudinal beam, or as Fig.11 As shown, a steel formwork 1 is arranged on the outside of the reinforced concrete, and angle steels 2 are arranged at the bottom of the cross beam and the longitudinal beam, and the angle steels 2 are fixedly connected to the steel formwork 1, for example, by welding or bolting. The steel formwork 1 is a formwork for casting the cross beam and the longitudinal beam, and does not need to be demoulded after casting; the steel formwork 1 can be arranged on the entire side of both sides of the cross beam and the longitudinal beam, or only on the lower inverted triangle portion.

[0037] In order to make the assembled frame beam better integrated with the slope and avoid slipping, at least one of the two sides of the cross beam and the longitudinal beam is continuously or intermittently provided with an anti-skid structure. The anti-skid structure is used to make the frame beam more stably embedded in the slope. The vertical surfaces on both sides of the cross beam and the longitudinal beam are wavy, concave-convex or toothed, or the vertical surfaces of the cross beam and the longitudinal beam are provided with anti-skid piles. The anti-skid piles are reinforced concrete and are integrally cast with the cross beam or the longitudinal beam.

[0038] The five modules are described in detail below.

[0039] The middle assembly module I is used to form the middle part of the rectangular frame beam slope protection structure. Figure 3 As shown, the length and width of a single frame in the middle assembly module I are recorded as L1 and L2 respectively. The number of frames in the length direction of the middle assembly module I is n, where n is a positive integer. L1 / 2 is extended from each side of the left and right sides as a reserved joint, and the total length is: 2×L1 / 2+n×L1=(n+1)L1. The number of frames in the width direction of the middle assembly module I is m, where m is a positive integer. L2 / 2 is extended from each side of the upper and lower sides as a reserved joint, and the total width is: 2×L2 / 2+m×L2=(m+1)L2. The middle assembly module I is prefabricated in the factory as a whole, and the structure is not provided with a split seam, and a connection joint is reserved at the joint.

[0040] The top assembly module II and the bottom assembly module III are used to be arranged at the top and foot of the slope. The top assembly module II and the bottom assembly module III can be the same or different. Figure 5 As shown, the length and width of a single frame of the top assembly module II are recorded as L1 and L2, the number of frames in the length direction of the top assembly module II is n, n is a positive integer, L1 / 2 is extended on both sides of the left and right sides as a reserved joint, and the total length is: 2×L1 / 2+n×L1=(n+1)L1. The number of frames in the width direction of the top assembly module II is m, m is a positive integer, m is preferably 1, L2 / 2 is extended on the lower side as a reserved joint, and the total width is: L2 / 2+m×L2=(m+0.5)L2. The top assembly module II and the bottom assembly module III are prefabricated and processed as a whole in the factory, the structure is not set with a split seam, and a connection joint is reserved at the joint.

[0041] The side assembly module IV is used to be arranged on both sides of the slope. Here, the arrangement on the left side of the slope is used as an example for explanation. Figure 4 As shown, the length and width of a single frame of the side assembly module IV are recorded as L1 and L2, the number of frames in the length direction of the side assembly module IV is n, n is a positive integer and preferably 1, L1 / 2 is extended on the right side as a reserved joint, and the total length is: L1 / 2+n×L1=(n+0.5)L1. The number of frames in the width direction of the side assembly module IV is m, m is a positive integer, L2 / 2 is extended on the upper and lower sides as reserved joints, and the total width is: 2×L2 / 2+m×L2=(m+1)L2. The side assembly module IV is prefabricated in the factory as a whole, the structure is not set with split seams, and connection joints are reserved at the joints.

[0042] Corner assembly module V is used to be arranged at the four corners of the slope. Figure 6As shown, the length and width of a single frame of the corner assembly module V are recorded as L1 and L2, and the corner assembly module V has at least one frame in the length direction and the width direction, preferably one, and the two adjacent sides of the corner assembly module V extend L2 / 2 or L1 / 2 respectively as a reserved joint. The corner assembly module V is prefabricated in the factory, and the structure is not provided with a split seam, and a connection joint is reserved at the joint.

[0043] The structures of the cross beams and longitudinal beams of the five modules are preferably the same. In order to facilitate the connection of the joints and at the same time make the cross beams and longitudinal beams have an anti-slip structure, a specific implementation plan for the cross beams and longitudinal beams is given below. Figure 7 As shown, the intersection of the cross beam and the longitudinal beam is the node segment a. The three-dimensional diagram of the node segment a is shown in Figure 8 A flattened section c is arranged in the middle of two adjacent node sections a, and a tooth opening section b is arranged between the node section a and the flattened section c. The node section a, the flattened section c and the tooth opening section b are a whole, wherein the three-dimensional structure of the flattened section c and the tooth opening section b is as shown in FIG. Fig.10 and Fig. 9 As shown. The side walls of the node segment a and the flat segment c are both flat. The upper side of the tooth segment b is serrated, and the lower part is flat. The tooth of the tooth segment b is formed by the arrangement of wave crests and wave troughs, and the cross section at the wave trough is exactly the same as the cross section of the flat segment c. The node segment a, the flat segment c and the tooth segment b are complete reinforced concrete, and the reinforcement can be as follows Fig.11 As shown, or as Fig.12 In order to ensure the strength of the tooth segment b at the wave crest, annular stirrups are set at the wave crest of the tooth segment b, and the wave crest and wave trough are arranged vertically to form an anti-slip structure. The reinforcement of the cross section of the tooth segment b at the wave crest and wave trough is shown as follows: Fig.13 and Fig.12 shown.

[0044] The reinforcement at the trough of the flat section c and the tooth section b is as follows Fig.12 The reinforcement of tooth section b at the wave crest is as follows Fig.13 As shown. The top longitudinal reinforcement 31 is evenly distributed, with at least two bars; the waist longitudinal reinforcement 33 is arranged on both sides, with two bars; the bottom longitudinal reinforcement 35 is arranged in the middle, with one bar; the upper structural longitudinal reinforcement 32 is arranged on both sides, with the number of rows m≥1, and two bars in each row; the lower structural longitudinal reinforcement 34 is arranged on both sides, with the number of rows m≥1, and two bars in each row. The annular hoop reinforcement 36 is composed of an annular hoop and the upper structural reinforcement 37 and the lower structural reinforcement 38. The reinforcement of the tooth mouth section b at the wave crest can be Fig.12 The annular stirrups 36 shown are expanded laterally so that the concrete corresponding to the wave crest contains steel bars, or an additional circle of annular stirrups 36 is added at the position corresponding to the wave crest, and the additional annular stirrups 36 extend into the concrete corresponding to the wave crest. Fig.12 and Fig.13In the embodiment, the top longitudinal reinforcement 31, the upper structural longitudinal reinforcement 32, the waist longitudinal reinforcement 33, the lower structural longitudinal reinforcement 34 and the bottom longitudinal reinforcement 35 respectively retain joints of a certain length at the reserved joints.

[0045] The second subject of the present invention is an assembled rectangular slope protection structure, in which a rectangular slope protection structure is formed on the slope by the above-mentioned assembled lattice beam. Among them, a middle assembly module I or a plurality of middle assembly modules I are connected by joints to form a rectangular overall structure arranged in the middle of the slope. A top assembly module II is arranged on the top of the middle assembly module I, and there are one or more top assembly modules II, and the top assembly module II is located at the top of the slope. A bottom assembly module III is arranged on the bottom of the middle assembly module I, and there are one or more bottom assembly modules III, and the bottom assembly module III is located at the bottom of the slope. Side assembly modules IV are respectively arranged on the left and right sides of the middle assembly module I, and there are one or more side assembly modules IV, and the side assembly modules IV are located on both sides of the slope. Four corner assembly modules V are respectively arranged at the four corners of the middle assembly module I.

[0046] Any two modules of the five types of modules are connected to each other through joints, and modules of the same type are also connected to each other through joints. Longitudinal reinforcement is reserved at the joint of each module. After the reserved longitudinal reinforcement is overlapped, the formwork is supported and concrete is poured. In order to reduce the overlap length, the joints are connected by overlap plates 4, such as Fig.14 As shown. Fig.15 , sleeves 41 are respectively arranged on both sides of the lap plate 4, and the number and position of the sleeves 41 match the longitudinal reinforcement at the joint. The longitudinal reinforcement at the joint of the two modules is respectively inserted into the sleeves 41 on both sides of the lap plate 4 and fixed by welding. The lap plate 4 is cast as a whole by fine stone concrete with a higher grade. The sleeve 41 can be fixedly connected to the lap plate 4, or the sleeve 41 can be rotatably connected to the lap plate 4. When the sleeve 41 is rotatably installed on the lap plate 4, a thread is arranged inside the sleeve 41, and a threaded joint is arranged on the longitudinal reinforcement, and the sleeve 41 and the longitudinal reinforcement are threadedly connected.

Claims

1. Assembled frame beam, characterized by: The invention comprises five modules, namely a middle assembly module (I), a top assembly module (II), a bottom assembly module (III), a side assembly module (IV) and a corner assembly module (V); each module comprises a crossbeam and a longitudinal beam, the bottoms of the crossbeam and the longitudinal beam are both in a pointed cone shape, the direction of the pointed cone is perpendicular to the plane where the crossbeam and the longitudinal beam are located and arranged downward, each module has at least two crossbeams and at least two longitudinal beams, and the crossbeams and the longitudinal beams are arranged vertically and crosswise, and the crossbeams and the longitudinal beams of each module form at least one rectangular frame; joints are reserved on all sides of the middle assembly module (I), joints are reserved on the left and right sides and the bottom of the top assembly module (II), joints are reserved on the left and right sides and the top of the bottom assembly module (III), joints are reserved on the upper and lower sides, the left side or the right side of the side assembly module (IV), and joints are reserved on the upper or lower side, the left side or the right side of the corner assembly module (V).

2. The assembled lattice beam according to claim 1, characterized in that: The structures of any two of the three modules, namely, the top assembly module (II), the bottom assembly module (III) and the side assembly module (IV), are the same, or the structures of all three modules are the same.

3. The assembled lattice beam according to claim 1, characterized in that: The structure of the joints of each module is the same, and the distance between the joint and the adjacent intersection of the cross beam and the longitudinal beam is half the distance between two adjacent intersections of the cross beam and the longitudinal beam.

4. The assembled lattice beam according to claim 1, characterized in that: The cross beam and the longitudinal beam are both reinforced concrete, a steel formwork (1) is arranged on the outer side of the reinforced concrete, and longitudinal reinforcement is reserved at the joints of the cross beam and the longitudinal beam; the upper part of the longitudinal section of the cross beam and the longitudinal beam is rectangular, and the lower part is inverted triangle, and angle steel (2) is arranged at the bottom of the cross beam and the longitudinal beam, and the angle steel (2) is fixedly connected to the steel formwork (1).

5. The assembled lattice beam according to any one of claims 1 to 4, characterized in that: At least one of the two side surfaces of the cross beam and the longitudinal beam is provided with an anti-slip structure continuously or at intervals.

6. The assembled lattice beam according to claim 5, characterized in that: The anti-skid structure is that the vertical surfaces on both sides of the cross beam and the longitudinal beam are wavy, concave-convex or serrated, or the vertical surfaces of the cross beam and the longitudinal beam are provided with anti-skid piles, and the anti-skid piles are reinforced concrete and cast integrally with the cross beam or the longitudinal beam.

7. The assembled lattice beam according to claim 6, characterized in that: The intersection of the transverse beam and the longitudinal beam is a node section (a), a flat section (c) is arranged in the middle of two adjacent node sections (a), and a tooth section (b) is arranged between the node section (a) and the flat section (c); the flat section (c) is arranged at the joints of the five modules, and a tooth section (b) is arranged between the node section (a) and the flat section (c) at the joint; the tooth of the tooth section (b) is formed by arranging wave crests and wave troughs at intervals, annular stirrups (36) are arranged in the wave crests, and the wave crests and wave troughs are arranged vertically to form an anti-slip structure.

8. Prefabricated rectangular slope protection structure, characterized by: A rectangular slope protection structure is formed on the slope by the assembled lattice beams described in any one of claims 1 to 7, wherein a middle assembly module (I) or a plurality of middle assembly modules (I) connected by joints to form a rectangular overall structure is arranged in the middle of the slope, a top assembly module (II) is arranged on the top of the middle assembly module (I), and the top assembly module (II) is located at the top of the slope, a bottom assembly module (III) is arranged on the bottom of the middle assembly module (I), and the bottom assembly module (III) is located at the bottom of the slope, side assembly modules (IV) are arranged on the left and right sides of the middle assembly module (I), and the side assembly modules (IV) are located on both sides of the slope, and four corner assembly modules (V) are arranged at the four corners of the middle assembly module (I); any two of the five modules are connected to each other by joints, and modules of the same type are also connected to each other by joints.

9. The assembled rectangular slope protection structure according to claim 8, characterized in that: The transverse beams and longitudinal beams of the five modules are all reinforced concrete. Longitudinal reinforcement is reserved at the joints of each module. The joints are connected by lap plates (4). Sleeves (41) are respectively arranged on both sides of the lap plates (4). The longitudinal reinforcements on both sides of the connection position are respectively located in the sleeves (41) and fixed by welding. Concrete is poured at the lap plates (4) and connected as a whole.

Images