Fabricated frame beam and construction method thereof

Abstract

The application discloses a fabricated frame beam and a construction method thereof. The frame beam comprises a prefabricated node beam, a body of which is provided with a through anchoring hole, and at least one anchoring end is formed by the outward protrusion of the body; and a connecting beam, the two ends of which are connected with the anchoring ends of the prefabricated node beams respectively, the connecting beam is made of resin material, and the stress intensity of the connecting beam is less than that of the prefabricated node beam. Through the above arrangement, the prefabricated node beam and the connecting beam are both prefabricated parts, which completely replace the on-site concrete pouring operation, shorten the construction period of the frame beam, and also realize the complete fabricated construction, which is convenient and flexible in transportation and disassembly, and the quality of the components can be guaranteed. In addition, the connecting beam is made of light material, which greatly reduces the weight of the entire supporting system component on the basis of meeting the supporting stress requirement, reduces the cost, and is more convenient for construction and transportation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of slope support, in particular to an assembled frame beam and a construction method thereof. BACKGROUND

[0002] The frame beam anchor rod (cable) support system is mainly applied in slope support, is a new type of reinforcing system formed by integrating the steel wire rope concrete frame beam and the prestressed anchor rod, bears the rock-soil body sliding force generated when the unstable rock-soil body slides, and thus maintains the stability of the rock-soil body of the slope. Moreover, the frame beam can be fully combined with the slope greening technology and the like due to the overall grid type frame structure, and provides multi-directional comprehensive action of support + greening for the slope, so that the frame beam support system is applied more and more widely.

[0003] However, in many cases, due to the high and steep slope support or uneven distribution of rock-soil, the poor construction environment, it is difficult to ensure the quality and appearance of the frame beam, and the construction period is relatively long, so in recent years, the construction method of the assembled frame beam has appeared to replace the site pouring construction as much as possible.

[0004] In one prior art, there is a kind of assembled frame beam structure, which includes cross beam components and cross beams and longitudinal beams, the middle of the cross beam component is provided with an anchoring hole matched with the anchor rod, and the four end portions of each cross beam are connected with the cross beam or the longitudinal beam to form the whole slope support system. The advantage of this scheme is that only the cross beam structure is site pouring construction, and the rest of the cross beam and the longitudinal beam are prefabricated, which can be processed in batches in the factory, reduces the pouring operation amount on site, and is beneficial to shorten the construction period and improve the quality.

[0005] However, when the above scheme is applied to actual engineering, it is still relatively troublesome: the hoisting process of the batch cross beams and longitudinal beams is complicated; the installation and fixation of the cross beams during pouring require higher. Various problems lead to that it is still difficult to improve the construction quality and construction efficiency in actual construction, and there is still room for improvement. SUMMARY

[0006] In order to solve the defects in the prior art, the present application proposes an assembled frame beam and a construction method thereof.

[0007] In a first aspect, the technical scheme adopted by the present application is that the assembled frame beam comprises:

[0008] The prefabricated node beam comprises a body, the body is provided with a through anchoring hole, and the body protrudes outward to form at least one anchoring end;

[0009] A connecting beam, two ends of which are connected with the anchoring end of one of the prefabricated node beams respectively, the connecting beam is made of resin material, and the stress strength of the connecting beam is less than that of the prefabricated node beam.

[0010] Preferably, the connecting beam is made of at least one of PE, PVC, PP or PET.

[0011] Preferably, the connecting beam has a rectangular cross section, and the cross section of the connecting beam matches the cross section size of the anchoring end.

[0012] Preferably, at least one light cavity is formed in the connecting beam along the length direction.

[0013] Preferably, the prefabricated node beam is provided with a mounting cavity penetrating the anchoring end and the body, the connecting beam is provided with a penetrating cavity, the penetrating cavity is in communication with the mounting cavity when the connecting beam is connected with the anchoring end in alignment, and a steel strand / rope is arranged in the penetrating cavity and the mounting cavity.

[0014] Preferably, the steel strand / rope is arranged in the length direction, and sequentially penetrates the prefabricated node beams and the connecting beams arranged in rows / lines and adjacent to each other, and the penetrating cavity and the mounting cavity are both provided with a grouting sealing structure for fixing the steel strand / rope.

[0015] Preferably, the steel strand / rope is arranged in the penetrating cavity, and the two ends of the steel strand / rope extend out of the penetrating cavity, the part of the steel strand / rope penetrating out of the penetrating cavity is inserted into the mounting cavity, and the penetrating cavity and the mounting cavity are both provided with a grouting sealing structure for fixing the steel strand / rope.

[0016] Preferably, the application further comprises a connecting pipe, the connecting pipe is sleeved at the connecting position between the anchoring end of the prefabricated node beam and the connecting beam, and a grouting sealing structure is formed between the connecting pipe and the connecting position.

[0017] Preferably, the anchoring hole is formed along the anchoring stress direction of the body, and an insertion protrusion is formed on one side of the body along the anchoring stress direction and outwardly extending, and the insertion protrusion protrudes from the body.

[0018] Preferably, the insertion protrusion is located at the center position of the side of the body, and the anchoring hole penetrates the insertion protrusion.

[0019] Preferably, a plurality of insertion protrusions are arranged, and the plurality of insertion protrusions are arranged circumferentially around the anchoring hole.

[0020] In the second aspect, the application further provides a prefabricated frame beam construction method, comprising the following steps:

[0021] Step one, preparing prefabricated node beam and curing to the specified strength;

[0022] Step two, leveling the slope and excavating a groove matching the upper plug-in protrusion of the prefabricated node beam;

[0023] Step three, installing the prefabricated node beam to the groove and anchoring and pre-tensioning construction;

[0024] Step four, installing the connecting beam, then grouting to form a frame beam support system.

[0025] Preferably, in step four, the connecting beam is installed, specifically: moving the connecting beam to the installation position, and then the steel strand / steel wire rope is sequentially threaded through the prefabricated node beam and the connecting beam placed at intervals to form an overall support structure, and then grouting is performed.

[0026] Preferably, in step four, the connecting beam is installed, specifically: moving the connecting beam to the installation position, and then the steel strand / steel wire rope is sequentially threaded through the prefabricated node beam and the connecting beam placed at intervals to form an overall support structure, and then grouting is performed.

[0027] Preferably, in step four, the connecting beam is installed, specifically: moving the connecting beam to the installation position, and then the steel strand / steel wire rope is sequentially threaded through the prefabricated node beam and the connecting beam placed at intervals to form an overall support structure, and then grouting is performed.

[0028] Compared with the prior art, the present application has the following beneficial effects:

[0029] 1. The prefabricated node beam and the connecting beam are both prefabricated parts, completely replacing the on-site concrete pouring operation, shortening the construction period of the frame beam, and also realizing complete assembly construction, which is convenient and flexible for transportation and disassembly, and the quality of the components can be adequately guaranteed.

[0030] 2. The inventor has long-term engineering construction experience, and through observation of the prefabricated assembly frame beam structure in recent years, it is found that the whole structure uses concrete as the raw material, and the stress strength at each place is the same, but it also leads to certain inconvenience in transportation and installation of each component due to the heavy weight of the concrete components. Moreover, the inventor found during the stress calculation of the frame beam that due to the force exertion characteristics of the anchor rod (cable) structure, only the node beam in the frame beam structure is the most concentrated and largest in stress, that is, the stress strength of the node beam should be the largest, and other places such as the connecting beam will not be subjected to such a large stress, and the corresponding stress strength can also be correspondingly reduced.

[0031] Based on this, the node beam in the application is made of prefabricated concrete, and the connecting beam is made of light material such as resin, although the stress strength of the connecting beam is less than that of the prefabricated node beam, but the supporting stress requirement of the connecting beam can still be met, the weight of the whole supporting system component is greatly reduced, the cost is reduced, and the construction and transportation are more convenient.

[0032] In addition, a through light cavity is also opened in the connecting beam, which further reduces the weight of the connecting beam and the manufacturing cost, and due to the supporting effect of the cavity, the stress strength of the connecting beam can be improved to a certain extent.

[0033] 3, the cross section of the connecting beam and the cross section of the anchoring end are matched, which ensures that the whole frame beam can still form a grid structure after assembly, and the slope re-greening operation can be carried out in each grid hole, which provides a protection area for the planting and maintenance of vegetation.

[0034] 4, the steel strand / steel wire rope is arranged in the connecting beam and the prefabricated node beam, which can improve the stress strength, and after tensioning, a prestressed stress system can be formed, which can improve the integrity and stress strength of the frame beam, and the installation and connection mode of the steel strand / steel wire rope between the connecting beam and the prefabricated node beam can adopt the two forms of full length and segmented insertion, which can adapt to different construction environment and construction requirements.

[0035] 5, the prefabricated node beam is provided with an insertion protrusion on one side, which can be inserted into the slope during installation, which not only has the effect of pre-positioning, but also is convenient for the installation of the connecting beam, and also has a certain fixing effect on the prefabricated node beam, which maintains the structural stability of the frame beam.

[0036] 6, the connecting pipe wraps the connecting part of the connecting beam and the anchoring end, and forms a grouting sealing structure through grouting, which improves the sealing property of the connecting part, reduces the adverse effects of external factors on the internal structure of the connecting beam and the prefabricated node beam, especially reduces the corrosion of the steel strand / steel wire rope, and prolongs the service life of the whole frame beam. BRIEF DESCRIPTION OF DRAWINGS

[0037] The application will be described in detail below in combination with embodiments and drawings, in which:

[0038] Figure 1 It is a schematic view of the local structure of the frame beam in an embodiment;

[0039] Figure 2 It is a construction process flow chart of the application;

[0040] Figure 3 It is a schematic view of the structure of the prefabricated node beam installed at the anchoring rod;

[0041] Figure 4 Fig. 1 is a schematic view of the start of assembly of the connecting beam in an embodiment;

[0042] Figure 5 Fig. 2 is a schematic view of the frame beam structure after completion of assembly of the connecting beam in an embodiment;

[0043] Figure 6 Fig. 3 is a schematic view of the overall structure of the frame beam after anchoring in an embodiment;

[0044] Figure 7 Fig. 4 is a schematic view of the connection relationship between the prefabricated node beam, the connecting beam and the anchor rod in an embodiment;

[0045] Figure 8 Fig. 5 is a schematic view of the connection structure between the prefabricated node beam and the anchor rod in an embodiment;

[0046] Figure 9 Fig. 6 is a schematic view of the frame beam structure in an embodiment.

[0047] 1, prefabricated node beam; 2, connecting beam; 3, steel strand; 4, anchoring end; 5, anchor rod; 6, mounting cavity; 7, anchoring hole; 8, through cavity; 9, first lightweight cavity; 10, second lightweight cavity; 11, connecting steel bar; 12, connector; 13, plug-in protrusion. DETAILED DESCRIPTION

[0048] The assembled frame beam is mainly combined with the anchor rod or anchor cable and applied in slope support, is a reinforcing system formed by integrating the steel wire rope concrete frame beam and the prestressed anchor rod 5, and bears the rock-soil body sliding force generated when the unstable rock-soil body slides, so as to maintain the stability of the rock-soil body of the slope.

[0049] The application provides an assembled frame beam, as shown in the accompanying drawings, which comprises a prefabricated node beam 1 and a connecting beam 2. Figure 1 The prefabricated node beam 1 is made of concrete, the connecting beam 2 is made of resin material, and the stress intensity of the connecting beam 2 is less than that of the prefabricated node beam 1. Each prefabricated node beam 1 comprises a body, and the body is provided with a through anchoring hole 7, and each body is outwardly protruded to form at least one anchoring end 4, that is, when four anchoring ends 4 are formed on one body, the body is similar to a cross shape.

[0050] The anchor rod 5 or anchor cable is pre-constructed in the slope body, and the end of the anchor rod 5 or anchor cable penetrates out of the slope body and is located on the slope surface. For the convenience of description, the anchor rod 5 is taken as the description object in the following. During assembly construction, the anchor hole 7 formed in the prefabricated node beam 1 is inserted and matched with the anchor rod 5, and the anchoring end 4 extends outward along the circumferential side of the body. The two ends of each connecting beam 2 are connected with the anchoring end 4 of one body, that is, the opening direction of the anchor hole 7 is perpendicular or close to perpendicular to the connecting beam 2. Of course, according to the actual anchoring requirements, the included angle between the anchor hole and the connecting beam can also be a larger obtuse angle or a smaller acute angle, and the specific angle is subject to the design requirements.

[0051] Through the above setting, the anchor rod 5, the node beam and the connecting beam 2 form the anchor rod 5 frame beam system, which forms a three-dimensional protection system in the slope surface and the soil body of the slope, and can better maintain the stability of the slope. Moreover, the prefabricated node beam 1 and the connecting beam 2 are pre-prepared components, which can be directly assembled on the construction site, reducing the pouring construction on the site, saving a large number of formwork processes on the site, shortening the construction period on the site, and effectively guaranteeing the quality of each component.

[0052] The connecting beam 2 is made of polymeric resin material, and the stress intensity thereof is less than that of the prefabricated node beam 1. However, due to the stress characteristics between the frame beam and the anchor rod 5 system, the connecting beam 2 made of light material can still guarantee the overall stress requirement of the frame beam. In an embodiment, the connecting beam 2 is made of at least one of PE, PVC, PP or PET, for example, the connecting beam 2 is made of PVC polymer into a cuboid. The connecting beam 2 obtained in this way has excellent anti-aging ability and can withstand a certain strength impact, but the overall weight is extremely light, the cost is low, the size accuracy is high, and the product quality is easy to control. Through the frame beam structural mechanics analysis, the inventor calculates the shear force, bending moment and displacement distribution of the prefabricated frame beam anchor rod 5 node after applying a standard anchoring design tension. It is found that the strength design meets the bending moment and bearing capacity requirements, the connecting frame beam node steel wire rope anchoring length meets the pulling requirement, and the maximum tension of the steel rope is less than the minimum breaking force.

[0053] It should be noted that the connecting beam in the embodiment is made of resin material, for example, the connecting beam is made of PVC into a hollow rectangular structure. However, the resin material is not the only limitation for the connecting beam. The resin material can be understood as taking at least one of PE, PVC, PP or PET as the main material, and further combining with other necessary components, such as impact modifier, active calcium carbonate, lubricant, titanium dioxide and carbon black pigment, etc. Even according to different application environments, necessary special additives such as anti-freezing agent and anti-ultraviolet agent can also be added. In actual proportioning, adaptive changes are made according to design requirements, and in the embodiment, the specific components and their proportions are not limited.

[0054] In another embodiment, the connecting beam 2 can also be made of other light building materials, such as various alloys, aluminum profiles, etc., and the specific material can be selected according to the actual supporting stress requirements to meet the actual supporting requirements.

[0055] The connecting beam 2 is provided with at least one through light cavity in the length direction. In one embodiment, the connecting beam 2 is provided with two light cavities, i.e., the connecting beam 2 is designed as a separate cavity to achieve the effect of lightening the connecting beam 2, and the separate cavity structure can also effectively improve the stress strength of the connecting beam 2.

[0056] In one embodiment, as shown in Figure 1 The cross section of the connecting beam 2 is rectangular, and the cross section of the connecting beam 2 matches the cross section size of the anchoring end 4. After the prefabricated node beam 1 and the connecting beam 2 are assembled, the frame beam as a whole presents a grid structure, and each grid hole can be used for slope re-greening. A plurality of connecting beams 2 provide a surrounding area for planting vegetation and other greening, which makes the frame beam anchoring system and the slope re-greening technology well combined, and further expands the application range of the frame beam supporting system. In one embodiment, the cross section of the connecting beam 2 can also be other shapes, such as pentagon, triangle, trapezoid, etc.

[0057] If the frame beam is cancelled or replaced by a rod, the above effects cannot be achieved: on the one hand, the frame beam still exerts pressure on the slope soil, which plays an irreplaceable role in maintaining soil stability. Moreover, only under the connection of the frame beam, the single-point prefabricated node beam 1 can be connected into the whole supporting system, which greatly improves the stress stability of the slope support. Therefore, the connecting beam 2 cannot be cancelled. On the other hand, the frame beam provides space for the planting of re-greening vegetation by virtue of its structural characteristics, which is also an effect that cannot be achieved by connecting members such as rods and steel wires. Similarly, in the slope supporting system, it is not suitable to use metals such as I-beams that are prone to rust, which are heavy, inconvenient to install, prone to rust, have poor anti-aging ability, and are not suitable as a carrier for slope re-greening. If additional anti-rust measures are taken, it will lead to more procedures, longer cycle, and pollution to the slope, which is also not suitable.

[0058] In one embodiment, the prefabricated node beam 1 is provided with a mounting cavity 6 penetrating the anchoring end 4 and the body, and the connecting beam 2 is provided with a penetrating cavity 8. When the connecting beam 2 is connected and aligned with the anchoring end 4, the penetrating cavity 8 is opposite and communicates with the mounting cavity 6. Steel strands 3 / steel wires are penetrated in the penetrating cavity 8 and the mounting cavity 6. For the sake of description, the steel strands 3 are taken as an example for description hereinafter.

[0059] By threading steel strands 3 through the connecting beam 2 and the precast node beam 1, the frame beam support system can be further integrated, and the overall load-bearing strength is improved. The connecting beam 2 has a rectangular cross-section, and a first lightweight cavity 9 is opened in the middle along the length direction of the connecting beam 2. A second lightweight cavity 10 is opened on the left and right sides of the first lightweight cavity 9. A through cavity 8 is opened directly below each second lightweight cavity 10. The through cavity 8 and the second lightweight cavity are arranged in two pairs, one above the other. The sum of the heights of each pair of through cavities 8 and the second lightweight cavity 10 is equal to the height of the first lightweight cavity 9. That is, the connecting beam 2 has five cavities inside, with the first lightweight cavity 9 in the middle, and a pair of through cavities 8 and second lightweight cavities 10 distributed vertically on its left and right sides. Of course, the number of through cavities 8 corresponds to the number of steel strands 3. In different designs, there are different numbers of steel strands 3 or bundles of steel strands 3, which requires opening different numbers of through cavities 8.

[0060] In one embodiment, such as Figure 1 As shown, the wire rope / steel strand 3 / steel wire rope is continuous in length, passing sequentially through rows / columns of adjacent precast node beams 1 and connecting beams 2. Both the insertion cavity 8 and the installation cavity 6 contain grouting sealing structures to fix the steel strand 3 / steel wire rope. This grouting sealing structure fixes the steel strand 3 to the connecting beams 2 and the precast node beams 1 as a single unit, allowing for the mutual transfer of forces between them, forming a force-bearing system. Furthermore, because the steel strand 3 is continuous in length, it can connect multiple precast node beams 1 and multiple connecting beams 2 into a unified whole when under stress, achieving the effect of distributing and sharing the load.

[0061] In one embodiment, the steel strand 3 / wire rope is threaded through the threading cavity 8, with both ends extending outwards from the threading cavity 8. The portion of the steel strand 3 / wire rope extending out of the threading cavity 8 is inserted into the installation cavity 6. Both the threading cavity 8 and the installation cavity 6 have grouting sealing structures to fix the steel strand 3 / wire rope. During installation, the steel strand 3 is pre-threaded into the connecting beam 2. During installation, both ends of the steel strand 3 are inserted into the two prefabricated node beams 1 at both ends. Finally, grouting is used to form a grouting sealing structure. In this way, through the action of the steel strand 3, the originally relatively independent prefabricated node beam 1 and the connecting beam 2 can become a whole under stress. Since the steel strand 3 is pre-installed in the connecting beam 2, when assembling the connecting beam 2 and the precast node beam 1, the subsequent step of separately threading the steel strand 3 through multiple precast node beams 1 and connecting beam 2 can be omitted, which can save construction time and reduce construction difficulty. Decomposing the steel strand 3 into segments can not only meet the stress requirements, but also make construction more convenient and flexible.

[0062] In one embodiment, considering that a connecting joint will exist at the connecting position of the prefabricated node beam 1 and the connecting beam 2, and external rainwater, dust and other impurities will enter the internal structure through the connecting joint, thereby reducing the service life of the internal structure, the frame beam in this embodiment further comprises a connecting pipe, which is sleeved at the connecting position of the anchoring end 4 of the prefabricated node beam 1 and the connecting beam 2, and a grouting sealing structure is formed between the connecting pipe and the connecting position. That is, after the connecting pipe is sleeved, the grouting sealing structure is formed by grouting to improve the sealing performance of the structure.

[0063] In one embodiment, the anchoring hole 7 is formed along the anchoring force direction of the body, and one side of the body further extends outward along the anchoring force direction to form a plug-in protrusion which protrudes from the body. Since one side of the prefabricated node beam 1 protrudes to form a plug-in protrusion, the plug-in protrusion can be inserted into the slope during installation, which not only has the effect of positioning, but also facilitates the installation of the connecting beam 2, and also has the effect of fixing the prefabricated node beam 1 to maintain the stability of the overall structure of the frame beam.

[0064] Specifically, the plug-in protrusion is located at the center position of the side surface of the body, and the anchoring hole 7 penetrates the plug-in protrusion. During actual installation, the prefabricated node beam 1 is positioned at the installation point, and the plug-in protrusion is inserted into the soil body to achieve the effect of positioning or fixing.

[0065] In another embodiment, a plurality of plug-in protrusions are provided, and the plurality of plug-in protrusions are arranged circumferentially around the anchoring hole 7, so that the plurality of plug-in protrusions are inserted into the soil body to also achieve the effect of positioning or fixing. Of course, the number, distribution mode and protrusion shape of the plug-in protrusions can be changed according to actual construction requirements or production conditions, and the present embodiment does not make specific limitations thereon, and there can be various forms of changes, as long as the plug-in protrusions can achieve the effects of pre-positioning and limiting the prefabricated node beam 1.

[0066] As shown in Figures 7-9 Another assembled frame beam is shown, each prefabricated node beam 1 has four anchoring ends 4 extending outward in the circumferential direction, and the upper surface of the anchoring end 4 away from the end of the anchoring hole 7 is designed as a downwardly inclined surface, and the connecting beam 2 is in the form of a flat plate, and the two ends thereof are respectively inserted into one anchoring end 4 and finally fixedly connected by grouting.

[0067] Specifically, the anchoring hole 7 inside the prefabricated node beam 1 is divided into two sections, the lower half is a cavity surrounded by a round steel pipe or a square steel pipe, and the upper half is designed with an enlarged head, that is, the diameter of the cavity in the upper half is larger than that in the lower half. During actual installation or grouting, a connecting steel bar 11, such as a finished rolled threaded steel, is inserted into the anchoring hole in advance, and the upper end of the connecting steel bar 11 is located in the enlarged head of the upper half of the anchoring hole 7, and the lower end of the connecting steel bar 11 passes through the lower half of the anchoring hole 7 and is located outside the prefabricated node beam 1, so that the upper end of the connecting steel bar 11 is fixed by a gasket and a nut installed in the enlarged head of the upper half of the anchoring hole 7, and the lower end of the connecting steel bar 11 can be connected with the anchor rod 5 through a connector 12, thereby realizing the connection and installation between the anchor rod 5 and the prefabricated node beam 1.

[0068] In addition, in this embodiment, as shown in Figure 7 , the upper surface of the connecting beam 2 is aligned with the upper surface of the anchoring end 4, and the overall height of the connecting beam 2 is less than the height of the anchoring end 4, thereby forming a step between the bottom surface of the connecting beam 2 and the bottom surface of the anchoring end 4. As shown in Figure 8 , since steps are formed between the four connecting beams 2 and the four anchoring ends 4, the structure formed by the prefabricated node beam and the four anchoring ends is protruding downward as a whole, that is, a downward protruding insertion protrusion 13 is formed. In this embodiment, the insertion protrusion 13 is formed by the bottom of the prefabricated node beam 1 and the plurality of anchoring ends, that is, the insertion protrusion 13 is part of the prefabricated node beam 1 and the plurality of anchoring ends 4, and does not need to be additionally manufactured on the prefabricated node beam.

[0069] During construction and installation, a groove is excavated on the slope, and the shape and depth of the groove match the shape of the bottom surface of the structure formed by the prefabricated node beam and the four anchoring ends, that is, the insertion protrusion, so that the prefabricated node beam 1 can be directly inserted into the excavated groove through the insertion protrusion 13 to complete the positioning, and at the same time, it does not affect the insertion and fixation between the connecting beam 2 and each anchoring end 4, and the bottom surface of the connecting beam 2 can also be well fitted on the slope soil, and each can play a corresponding role.

[0070] In another embodiment, a construction method of an assembled frame beam is also disclosed, as shown in Figure 2 , comprising the following steps:

[0071] Step 1, prepare the prefabricated node beam 1 and maintain it to the specified strength, and the actual concrete strength is based on the design value;

[0072] Step 2, level the slope and excavate a groove matching the insertion protrusion on the prefabricated node beam 1, and the position and number of the groove are also based on the actual arrangement of the insertion protrusion;

[0073] Step 3, as shown in Figure 3As shown, the prefabricated node beam 1 is installed at the groove, the plug-in protrusion is plugged into the groove, the positioning and limiting of the prefabricated node beam 1 are completed, and the anchoring pre-tensioning construction is performed, that is, the end of the anchor rod 5 passes through the anchoring hole 7, and then the anchor rod 5 is anchored on the prefabricated node beam 1 by tightening the nut or anchoring pre-tensioning.

[0074] Step four, as shown in Figures 4-5 , the connecting beam 2 is installed, and then grouting is performed to form a frame beam support system.

[0075] In one embodiment, for the installation of the connecting beam 2 in step four, the connecting beam 2 is moved to the installation position, and the steel strands 3 / steel wires on both ends of the connecting beam 2 are respectively inserted into the corresponding prefabricated node beams 1, and then grouting is performed.

[0076] In another embodiment, for the installation of the connecting beam 2 in step four, the connecting beam 2 is moved to the installation position, and the steel strands 3 / steel wires on both ends of the connecting beam 2 are respectively inserted into the corresponding prefabricated node beams 1, and then grouting is performed.

[0077] In the above two embodiments, when the connecting beam 2 is installed in step four, the two ends of the connecting beam 2 pass through the connecting pipe and are connected to the anchoring end 4 of the prefabricated node beam 1, the connecting pipe is sleeved at the connection between the connecting beam 2 and the anchoring end 4, and after the connecting beam 2 is installed in place, grouting is performed in the connecting pipe.

[0078] Finally, as shown in Figure 6 , after the grouting and tensioning of step four are completed, step five of sealing the anchoring structure end of the prefabricated node beam 1 needs to be performed.

[0079] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0080] It should be noted that, in the present application, the relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0081] The foregoing is considered as illustrative only of the principles of the application. Numerous modifications and changes will readily occur to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Accordingly, the scope of the application is intended to be defined only as set forth in the claims.

Claims

1. A prefabricated frame beam, characterized in that, include: A precast node beam includes a body, the body having a through anchor hole, and the body protruding outward to form at least one anchor end; A connecting beam, the two ends of which are respectively connected to the anchorage end of a precast node beam, the connecting beam is made of resin material, and the stress strength of the connecting beam is less than that of the precast node beam; A connecting pipe is sleeved at the connection between the anchoring end of the precast node beam and the connecting beam, and a grouting sealing structure is formed between the connecting pipe and the connection. The anchoring hole is opened along the anchoring force direction of the body, and one side of the body also extends outward along the anchoring force direction to form an insertion protrusion, which protrudes from the body. The connecting beam has a rectangular cross-section. A first lightweight cavity is opened in the middle of the connecting beam along its length. A second lightweight cavity is opened on the left and right sides of the first lightweight cavity. A through cavity is opened directly below each of the second lightweight cavities. The precast node beam has an installation cavity that runs through the anchor end and the body. When the connecting beam is connected and aligned with the anchor end, the through cavity and the installation cavity are directly connected. Steel strands / wire ropes are threaded through both the through cavity and the installation cavity.

2. The prefabricated frame beam according to claim 1, characterized in that, The connecting beam is made of at least one of PE, PVC, PP or PET.

3. The prefabricated frame beam according to claim 1, characterized in that, The connecting beam has a rectangular cross-section, and the cross-section of the connecting beam matches the dimensions of the anchoring end cross-section.

4. The prefabricated frame beam according to claim 1, characterized in that, The steel strand / wire rope is continuous in length and passes through rows / columns of precast node beams and connecting beams in sequence. Both the passage cavity and the installation cavity have grouting sealing structures to fix the steel strand / wire rope.

5. The prefabricated frame beam according to claim 1, characterized in that, The steel strand / wire rope is threaded through the threading cavity, with both ends extending outward from the threading cavity. The portion of the steel strand / wire rope that extends out of the threading cavity is inserted into the installation cavity. Both the threading cavity and the installation cavity have grouting sealing structures to fix the steel strand / wire rope.

6. The prefabricated frame beam according to any one of claims 1-5, characterized in that, The insertion protrusion is located at the center of the side of the body, and the anchoring hole passes through the insertion protrusion.

7. The prefabricated frame beam according to any one of claims 1-5, characterized in that, The insertion protrusions are provided in multiple ways, and the multiple insertion protrusions are arranged circumferentially around the anchoring hole.

8. A construction method for a prefabricated frame beam as described in any one of claims 1-7, characterized in that, Includes the following steps: Step 1: Prepare precast node beams and cure them to the specified strength; Step 2: Level the slope and excavate grooves that match the insertion protrusions on the precast node beams; Step 3: Install the precast node beam into the groove and carry out anchoring pre-tensioning construction; Step 4: Install the connecting beams, followed by grouting to form the frame beam support system.

9. The construction method according to claim 8, characterized in that, The installation of the connecting beam in step four specifically involves: moving the connecting beam to the installation position, allowing the steel strands / wire ropes to pass sequentially through the precast node beams and connecting beams placed at intervals to form an overall support structure, and then grouting.

10. The construction method according to claim 8, characterized in that, The fourth step, installing the connecting beam, specifically involves: moving the connecting beam to the installation position, inserting the steel strands / wire ropes extending from both ends of the connecting beam into the corresponding precast node beams, and then grouting.

11. The construction method according to any one of claims 8-10, characterized in that, When installing the connecting beam in step four, both ends of the connecting beam pass through the connecting pipe and are then connected to the anchorage end of the precast node beam. The connecting pipe is sleeved at the connection between the connecting beam and the anchorage end. After the connecting beam is installed in place, grouting is then performed inside the connecting pipe.

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