CN114892683A - Fabricated frame beam and construction method thereof - Google Patents

Abstract

The invention discloses an assembled frame beam and a construction method thereof, wherein the frame beam comprises a prefabricated node beam and a body, wherein the body is provided with a through anchoring hole, and the body protrudes outwards to form at least one anchoring end; and two ends of the connecting beam are respectively connected with the anchoring end of one prefabricated node beam, the connecting beam is made of resin materials, and the stress strength of the connecting beam is smaller than that of the prefabricated node beam. Through the arrangement, the prefabricated node beams and the connecting beams are prefabricated workpieces, cast operation of site concrete is completely replaced, the construction period of the frame beams is shortened, complete assembly type construction is realized, transportation and disassembly are convenient and flexible, and the quality of the members can be guaranteed sufficiently. In addition, because the connecting beams are made of light materials, on the basis of meeting the supporting stress requirement, the weight of the whole supporting system component is greatly reduced, the cost is reduced, and the construction and the transportation are more convenient.

Description

Fabricated frame beam and construction method thereof

Technical Field

The invention relates to the technical field of slope support, in particular to an assembled frame beam and a construction method thereof.

Background

The frame beam anchor rod (cable) support system is mainly used in slope support, and integrates a steel wire rope concrete frame beam and a prestressed anchor rod together to form a novel reinforcement system, and through the interaction among anchor rods (cables), frame beams and slope rock-soil mass, the rock-soil mass downward sliding force generated when an unstable rock-soil mass slides downward is borne, so that the stability of the slope rock-soil mass is maintained. And the frame beam is of a grid type frame structure integrally, and can be fully combined with technologies such as side slope greening and the like, and a multidirectional comprehensive effect of supporting and greening is provided for the side slope, so that the frame beam supporting system is more widely applied.

However, in many cases, due to the high and steep supporting slopes or uneven distribution of rock and soil quality, a severe construction environment, the quality and the attractiveness of the frame beam are difficult to ensure, and the construction period is relatively long, so that the construction mode of the assembled frame beam appears in recent years to replace cast-in-place construction as much as possible.

In one prior art, there is a fabricated frame beam structure, which includes a cross beam member, a cross beam and a longitudinal beam, wherein an anchor hole matched with an anchor rod is formed in the middle of the cross beam member, and four ends of each cross beam are connected with the cross beam or the longitudinal beam to form a whole slope supporting system. The technical scheme has the advantages that only the cross beam structure is in-situ pouring construction, and the rest cross beams and the rest longitudinal beams are prefabricated, so that batch processing can be performed in a factory, the in-situ pouring workload is reduced, the construction period is shortened, and the quality is improved.

However, when the scheme is applied to actual engineering, the method is still troublesome: the hoisting process of the batch of the cross beams and the longitudinal beams is complicated; the cross beam has higher requirements for the installation and fixation of the transverse and longitudinal beams during the pouring. In actual construction, it is still difficult to improve construction quality and efficiency, and there is still room for improvement.

Disclosure of Invention

In order to solve the defects in the prior art, the invention provides an assembled frame beam and a construction method thereof.

In a first aspect, the present invention adopts the technical solution that the fabricated frame beam includes:

the prefabricated node beam comprises a body, wherein the body is provided with a through anchoring hole, and the body protrudes outwards to form at least one anchoring end;

and two ends of the connecting beam are respectively connected with the anchoring end of one prefabricated node beam, the connecting beam is made of resin materials, and the stress strength of the connecting beam is smaller than that of the prefabricated node beam.

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

Preferably, the cross section of the connecting beam is rectangular, and the cross section of the connecting beam is matched with the cross section of the anchoring end in size.

Preferably, at least one through lightweight cavity is formed in the connecting beam along the length direction.

Preferably, an installation cavity penetrating through the anchoring end and the body is formed in the prefabricated node beam, a penetrating cavity penetrating through is formed in the connecting beam, when the connecting beam is connected and aligned with the anchoring end, the penetrating cavity is communicated with the installation cavity, and a steel strand/steel wire rope is arranged in the penetrating cavity and the installation cavity in a penetrating mode.

Preferably, the steel strand wires/steel wire ropes are arranged in a full length mode, sequentially penetrate through the prefabricated node beams and the connecting beams which are arranged in rows/columns and adjacently, and a grouting sealing structure for fixing the steel strand wires/steel wire ropes is formed in the penetrating cavities and the mounting cavities.

Preferably, the steel strand/steel wire rope is arranged in the penetrating cavity in a penetrating mode, two ends of the steel strand/steel wire rope extend out of the penetrating cavity and extend outwards, the part, penetrating out of the penetrating cavity, of the steel strand/steel wire rope is inserted into the installation cavity, and a grouting sealing structure for fixing the steel strand/steel wire rope is formed in the penetrating cavity and the installation cavity.

Preferably, the prefabricated node beam comprises a connecting beam and a prefabricated node beam, wherein the prefabricated node beam comprises an anchoring end and a connecting beam, the prefabricated node beam comprises a prefabricated node beam, the prefabricated node beam is connected with the connecting beam through the connecting beam, and a grouting sealing structure is formed between the connecting beam and the connecting beam.

Preferably, the anchoring hole is formed along the anchoring stress direction of the body, and one side of the body extends outwards along the anchoring stress direction to form an inserting protrusion protruding out of the body.

Preferably, the insertion protrusion is located in the center of the side face of the body, and the anchoring hole penetrates through the insertion protrusion.

Preferably, the inserting protrusions are arranged in a plurality and are circumferentially arranged around the anchoring holes.

In a second aspect, the invention further provides a construction method of the assembled frame beam, which comprises the following steps:

firstly, preparing a prefabricated node beam and maintaining the prefabricated node beam to a specified strength;

leveling the side slope, and excavating a groove matched with the splicing bulge on the prefabricated node beam;

step three, mounting the prefabricated node beam to the groove, and performing anchoring pretensioning construction;

and step four, mounting the connecting beam, and then grouting to form a frame beam supporting system.

Preferably, the connection beam is installed in the fourth step, which specifically comprises: and moving the connecting beam to the mounting position, enabling the steel strand/steel wire rope to sequentially penetrate through the prefabricated node beams and the connecting beam which are arranged at intervals to form an integral supporting structure, and grouting.

Preferably, the connection beam is installed in the fourth step, which specifically comprises: and moving the connecting beam to the mounting position, respectively inserting the steel strands/steel wire ropes extending out of the two ends of the connecting beam into the corresponding prefabricated node beams, and grouting.

Preferably, when the connecting beam is installed in the fourth step, two ends of the connecting beam respectively penetrate through the connecting pipes and then are connected with the anchoring end of the prefabricated node beam, the connecting pipes are sleeved at the connecting positions of the connecting beam and the anchoring end, and grouting operation is performed in the connecting pipes after the connecting beam is installed in place.

Compared with the prior art, the invention has the following beneficial effects:

1. the prefabricated node beam and the connecting beam are prefabricated workpieces, cast operation of site concrete is completely replaced, the construction period of the frame beam is shortened, complete assembly type construction is realized, transportation and disassembly are convenient and flexible, and the quality of the member can be sufficiently guaranteed.

2. The inventor has long-term engineering construction experience, and through observation of a prefabricated frame beam structure appearing in recent years, the inventor finds that concrete is adopted as a raw material in the whole, the stress strength of each part is the same, but the concrete member is heavy when each part is transported and installed, and certain inconvenience exists. In addition, the inventor discovers that only the node beam is most concentrated and maximum in stress in the frame beam structure due to the force application characteristic of the anchor rod (cable) structure in the stress calculation process of the whole frame beam, namely the stress strength of the node beam is maximum, other places such as a connecting beam cannot be subjected to the large stress, and the corresponding stress strength can be correspondingly reduced.

Based on the structure, the node beams are prefabricated by concrete, the connecting beams are made of light materials such as resin, and although the stress strength of the connecting beams is smaller than that of the prefabricated node beams, the supporting stress requirement of the connecting beams can be still met, meanwhile, the weight of the whole supporting system component is greatly reduced, the cost is reduced, and the construction and the transportation are more convenient.

In addition, the through light-weight cavity is formed in the connecting beam, so that the weight of the connecting beam is further reduced, the manufacturing cost is reduced, and meanwhile, the stress strength of the connecting beam can be improved to a certain extent due to the supporting effect of the cavity.

3. The cross section of the connecting beam is matched with that of the anchoring end, so that the whole frame beam can form a grid type structure after being assembled, slope re-greening operation can be performed in each grid hole, and a containment area is provided for planting and maintaining of vegetation.

4. The steel strand wires/steel wire ropes are arranged in the connecting beam and the prefabricated node beam in a penetrating mode, the stress strength can be improved, a prestress stress system can be formed after tensioning, the integrity and the stress strength of the frame beam are improved, the steel strand wires/steel wire ropes can be installed and connected between the connecting beam and the prefabricated node beam in a full-length and segmented inserting mode, and different construction environments and construction requirements can be met.

5. Because one side of the prefabricated node beam is protrudingly formed with the inserting protrusion, the inserting protrusion can be inserted into the side slope when being installed, so that the pre-positioning effect can be achieved, the subsequent connection beam can be conveniently installed, a certain fixing effect can be achieved on the prefabricated node beam, and the integral structure stability of the frame beam is maintained.

6. The connecting pipe wraps the connecting part of the connecting beam and the anchoring end, and a grouting sealing structure is formed through grouting, so that the sealing performance of the connecting part is improved, the adverse effect of external factors on the internal structures of the connecting beam and the prefabricated node beam can be reduced, particularly, the corrosion to steel strands/steel wire ropes is reduced, and the service life of the whole frame beam is prolonged.

Drawings

The invention is described in detail below with reference to examples and figures, in which:

FIG. 1 is a partial structural view of a frame beam according to an embodiment;

FIG. 2 is a flow chart of the construction process of the present invention;

FIG. 3 is a schematic structural view of the prefabricated node beam installed at the anchor rods;

FIG. 4 is a schematic view of an embodiment of the connection beam as it is initially assembled;

FIG. 5 is a schematic illustration of a frame beam structure with a completed tie beam assembly in one embodiment;

FIG. 6 is a schematic diagram of the overall structure of a frame beam after anchoring in one embodiment;

FIG. 7 is a schematic view showing a connection relationship between a prefabricated node beam, a connection beam and an anchor rod in one embodiment;

FIG. 8 is a view showing a connection structure of a precast node beam and an anchor in one embodiment;

figure 9 is a schematic view of a frame beam structure in one embodiment.

1. Prefabricating a node beam; 2. a connecting beam; 3. steel strand wires; 4. an anchoring end; 5. an anchor rod; 6. a mounting cavity; 7. an anchoring hole; 8. the cavity is penetrated; 9. a first lightweight cavity; 10. a second lightweight cavity; 11. connecting reinforcing steel bars; 12. a connector; 13. and (4) inserting and connecting the bulges.

Detailed Description

The assembled frame beam is mainly combined with an anchor rod or an anchor cable and applied to slope support, the steel wire rope concrete frame beam and the prestressed anchor rod 5 are integrated together to form a reinforcing system, and the downward sliding force of the rock-soil body generated when the unstable rock-soil body slides downward is borne through the interaction among the anchor rod 5 (cable), the frame beam and the slope rock-soil body, so that the stability of the slope rock-soil body is maintained.

The invention provides an assembled frame beam, which comprises a prefabricated node beam 1 and a connecting beam 2, wherein the prefabricated node beam 1 is prefabricated by concrete, the connecting beam 2 is made of resin materials, and the stress strength of the connecting beam 2 is smaller than that of the prefabricated node beam 1. Every prefabricated node roof beam 1 all includes the body, and sets up the anchor hole 7 that link up on the body, and simultaneously, every body all outwards bulges and is formed with at least one anchor end 4, when being formed with four anchor ends 4 on a body promptly, this body is similar cross.

The anchor rod 5 or the anchor cable is constructed in advance in a slope body, the end part of the anchor rod 5 or the anchor cable penetrates out of the slope body to be located on the slope surface, and for convenience of explanation, the anchor rod 5 is taken as a description object hereinafter. During the assembly construction, anchor hole 7 and the cooperation of pegging graft of stock 5 of seting up in the prefabricated node roof beam 1, anchor end 4 is along the week side of body outwards extension, and the both ends of every tie-beam 2 are connected with the anchor end 4 of a body respectively, and anchor hole 7 sets up the direction promptly and tie-beam 2 is vertically or is close perpendicular setting, and of course according to actual anchor requirement, the contained angle between anchor hole and the tie-beam also can be great obtuse angle or less acute angle, specifically uses the design requirement as the standard.

Through the arrangement, the anchor rod 5, the node beam and the connecting beam 2 form an anchor rod 5 frame beam system, a three-dimensional protection system is formed in the slope surface and the soil body of the side slope, and the stability of the side slope can be well maintained. In addition, the prefabricated node beam 1 and the connecting beam 2 are prefabricated components, and can be directly assembled on a construction site, so that the cast-in-place construction is reduced, a large number of formwork supporting processes in the site construction can be omitted, the construction period on the site is shortened, and the quality of each component can be effectively guaranteed.

After the connecting beam 2 is made of the polymer resin material, the stress strength of the connecting beam is smaller than that of the prefabricated node beam 1, but due to the stress characteristic between the frame beam and the anchor rod 5 system, the connecting beam 2 made of the light material can still ensure the integral stress requirement of the frame beam. In one embodiment, the connecting beam 2 is made of at least one of PE, PVC, PP or PET, for example, a PVC polymer is used to prepare the rectangular connecting beam 2, so that the obtained connecting beam 2 has excellent aging resistance and can bear impact with certain strength, but the overall weight is extremely light, the cost is low, the dimensional accuracy is high, and the production quality of the product is easy to control. The inventor calculates the distribution of shearing force, bending moment and displacement after applying standard anchoring design tension to the 5 nodes of the anchor rods of the prefabricated frame beams through the structural mechanics analysis of the frame beams, finds that the strength design meets the requirements of the bending moment and the bearing capacity, the anchoring length of the steel wire ropes connecting the nodes of the frame beams meets the drawing requirement, and the maximum tension of the steel wire ropes is smaller than the minimum breaking force of the steel wire ropes.

It should be noted that, in this embodiment, the connection beam is made of a resin material, for example, the connection beam having a rectangular hollow structure is made of PVC, but the resin material is not limited to the connection beam only, and the resin material may be understood as a material mainly made of at least one of PE, PVC, PP, and PET, and further compounded with other necessary components, such as an impact modifier, activated calcium carbonate, a lubricant, titanium dioxide, carbon black pigment, and the like, and even according to different application environments, necessary special additives, such as an antifreeze agent, an ultraviolet resistant agent, and the like, may also be added. In actual proportioning, the design requirements are adaptively changed, and the specific components and the proportioning thereof are not limited in this embodiment.

In another embodiment, the connecting beam 2 may also be made of other lightweight building materials, such as various alloys, aluminum profiles, etc., and specific materials may be selected according to actual supporting stress requirements, so as to mainly meet the actual supporting requirements.

At least one light weight cavity that link up has been seted up along length direction in the tie-beam 2, in an embodiment, has opened two upper and lower light weight cavities in the tie-beam 2, and the tie-beam 2 is inside to separate the design of chamber, lets whole tie-beam 2 reach the effect of lightweight, separates the chamber structure moreover and also can effectively improve the stress intensity of tie-beam 2.

In one embodiment, as shown in fig. 1, the cross section of the connecting beam 2 is rectangular, and the cross section of the connecting beam 2 is matched with the cross section of the anchoring end 4 in size, so that after the prefabricated node beam 1 and the connecting beam 2 are assembled, the whole frame beam is of a grid structure, each grid hole can be used for side slope re-greening, the plurality of connecting beams 2 provide a containment area for planting vegetation and other greening, the frame beam anchoring system and the side slope re-greening technology are well combined, and the application range of the frame beam supporting system is further expanded. In one embodiment, the cross-section of the connecting beam 2 may also be other shapes, such as pentagonal, triangular, trapezoidal, etc.

If the frame beam is cancelled or replaced by the rod piece, the above effects can not be obtained: on one hand, the frame beams still apply pressure to the side slope soil body, so that irreplaceable effect on maintaining the soil body stability is achieved, and the single-point prefabricated node beams 1 can be connected into a whole supporting system under the connection of the frame beams, so that the stress stability of the side slope support is greatly improved, and the connection beams 2 cannot be cancelled; on the other hand, the frame beam provides a space for planting the complex green vegetation by means of the structural characteristics of the frame beam, and the space is also an effect which cannot be realized by connecting pieces such as rod pieces, steel wire ropes and the like. Similarly, in a slope supporting system, the slope supporting system is not suitable for adopting metal materials which are easy to rust, such as I-steel and the like, has heavier weight, is inconvenient to install, is easy to rust, has poorer ageing resistance and is not suitable to be used as a carrier for slope regreening. If rust prevention measures are additionally adopted, the process is more, the period is longer, and the side slope is polluted, so that the method is not suitable.

In an embodiment, an installation cavity 6 penetrating through the anchoring end 4 and the body is formed in the prefabricated node beam 1, a penetrating cavity 8 penetrating through is formed in the connecting beam 2, when the connecting beam 2 is connected and aligned with the anchoring end 4, the penetrating cavity 8 is just communicated with the installation cavity 6, steel strands 3/steel wire ropes penetrate through the penetrating cavity 8 and the installation cavity 6, and for the purpose of description, the steel strands 3 are taken as an example hereinafter.

Through wear to establish steel strand wires 3 in tie-beam 2 and prefabricated node roof beam 1 inside, can let the frame roof beam strut the system and further form wholly, also improved holistic atress intensity. The 2 cross-sections of tie-beam are the rectangle, and tie-beam 2 opens along length direction and has the first light weight cavity 9 that is located the intermediate position one way, it has a second light weight cavity 10 to open respectively in the left and right sides of first light weight cavity 9, it wears to establish chamber 8 then to have seted up under every second light weight cavity 10, wherein wear to establish chamber 8 and second light weight space and arrange for making two pairs from top to bottom, each pair wears to establish the height of chamber 8 and second light weight cavity 10 and highly sum equals the height of first light weight cavity 9, be promptly this 2 inside formation of tie-beam has five cavitys, it is first light weight cavity 9 between two parties, its left and right sides distributes respectively a pair of wearing to establish chamber 8 and second light weight cavity 10 that distribute from top to bottom. Of course, the number of the through cavities 8 corresponds to the number of the steel strands 3, and in different designs, different numbers of steel strands 3 or steel strand bundles 3 exist, so that different numbers of through cavities 8 need to be formed.

In one embodiment, as shown in fig. 1, the wire rope/steel strand 3/steel wire rope is arranged in a full length mode, and sequentially passes through the prefabricated node beams 1 and the connecting beams 2 which are arranged in rows/columns and adjacently, and a grouting sealing structure for fixing the steel strand 3/steel wire rope is formed in each of the penetrating cavity 8 and the installation cavity 6, so that the steel strand 3, the connecting beams 2 and the prefabricated node beams 1 are fixed into a whole through the grouting sealing structure formed by grouting, and the stress between the two can be mutually transmitted to form a stress system. And because the steel strand wires 3 are arranged in full length, a plurality of prefabricated node beams 1 and a plurality of connecting beams 2 can be connected into a whole when stressed, and the effects of dispersing stress and jointly stressing are achieved.

In one embodiment, the steel strand 3/steel wire rope is inserted into the insertion cavity 8, and two ends of the steel strand 3/steel wire rope extend out of the insertion cavity 8 and extend outwards, the part of the steel strand 3/steel wire rope, which penetrates out of the insertion cavity 8, is inserted into the installation cavity 6, and a grouting sealing structure for fixing the steel strand 3/steel wire rope is formed in each of the insertion cavity 8 and the installation cavity 6. During the installation, wear to locate steel strand wires 3 in tie-beam 2 in advance, insert two prefabricated node roof beams 1 at both ends with steel strand wires 3's both ends during the installation, form slip casting seal structure through slip casting at last, through steel strand wires 3's effect like this, also can become a whole with comparatively independent prefabricated node roof beam 1 originally with tie-beam 2 when the atress. Because the steel strand wires 3 are pre-arranged in the connecting beam 2 in a penetrating manner, when the connecting beam 2 and the prefabricated node beams 1 are assembled, the subsequent independent step of enabling the steel strand wires 3 to penetrate through the prefabricated node beams 1 and the connecting beam 2 can be omitted, the construction time can be saved, the construction difficulty can be reduced, the steel strand wires 3 are decomposed into segmented forms, the stress requirement can be met, and the construction is more convenient and flexible.

In one embodiment, considering that there is a connecting seam at the joint of the prefabricated node beam 1 and the connecting beam 2, and external impurities such as rainwater and dust can enter the structure through the connecting seam, which results in a reduction in the service life of the internal structure, the frame beam in this embodiment further includes a connecting pipe, the connecting pipe is sleeved at the joint 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 joint. Namely, after the connecting pipe is sleeved, a grouting sealing structure is formed through grouting so as to improve the sealing performance of the structure.

In one embodiment, the anchoring hole 7 is formed along the anchoring force-receiving direction of the body, and one side of the body further extends outward along the anchoring force-receiving direction to form an insertion protrusion protruding out of the body. Because one side of the prefabricated node beam 1 protrudes to form the inserting protrusion, the inserting protrusion can be inserted into a side slope when being installed, so that the pre-positioning effect can be achieved, the subsequent installation of the connecting beam 2 is facilitated, a certain fixing effect is achieved on the prefabricated node beam 1, and the integral structural stability of the frame beam is maintained.

Specifically, the inserting protrusion is located in the center of the side face of the body, the anchoring hole 7 penetrates through the inserting protrusion, when actual installation is conducted, the prefabricated node beam 1 is located at the installation point, and the inserting protrusion is inserted into a soil body, so that the locating or fixing effect is achieved.

In another embodiment, a plurality of inserting protrusions are arranged and circumferentially arranged around the anchoring hole 7, so that the inserting protrusions are inserted into the soil body to achieve the positioning or fixing effect. Of course, the number, distribution mode, shape of the insertion protrusions and other characteristics may be changed according to actual construction requirements or production conditions, and the embodiment does not specifically limit the insertion protrusions, and may have various variations as long as the insertion protrusions can achieve the effect of pre-positioning and limiting the precast node beam 1.

As shown in fig. 7-9, another fabricated frame beam is shown, each prefabricated node beam 1 has four anchoring ends 4 extending outwards along the circumferential direction, the end of the upper surface of each anchoring end 4 far away from the anchoring hole 7 is designed as a downward slope, the connecting beam 2 is in the shape of a flat plate, and the two ends of the connecting beam are respectively inserted into one anchoring end 4 and are finally fixedly connected through grouting.

Specifically, the anchoring hole 7 formed in the prefabricated node beam 1 is divided into an upper section and a lower section, the lower section is a cavity formed by a round steel pipe or a square steel pipe in a surrounding mode, the upper section is designed as an amplifying head, and the diameter of the cavity of the upper section is larger than that of the cavity of the lower section. During actual installation or grouting, a connecting steel bar 11, such as finish-rolled deformed steel bar, is inserted into the anchoring hole in advance, the upper end of the connecting steel bar 11 is located in the amplifying head of the upper half of the anchoring hole 7, the lower end of the connecting steel bar 11 penetrates out of the lower half of the anchoring hole 7 and is located outside the prefabricated node beam 1, in this way, the upper end of the connecting steel bar 11 is fixed through a gasket and a nut which are installed in the amplifying 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, so that connection and installation between the anchor rod 5 and the prefabricated node beam 1 are achieved.

In addition, in this embodiment, as shown in fig. 7, the upper surface of the connection beam 2 is aligned with the upper surface of the anchoring end 4, and the overall height of the connection beam 2 is smaller than the height of the anchoring end 4, so that a step is formed between the bottom surface of the connection beam 2 and the bottom surface of the anchoring end 4. As shown in fig. 8, since steps are formed between the four connecting beams 2 and the four anchoring ends 4, the structure formed by the prefabricated node beams and the four anchoring ends is downward protruded as a whole, that is, a downward protruded insertion projection 13 is formed. In this embodiment, the insertion projection 13 is formed by the prefabricated node beam 1 and the bottom of the plurality of anchoring ends, i.e. the insertion projection 13 is a part of the prefabricated node beam 1 and the plurality of anchoring ends 4, without additional fabrication on the prefabricated node beam.

When the construction installation, excavate the recess in advance on the side slope, its shape and degree of depth then with prefabricated node roof beam and the structure that four anchor end formed, plug-in protrusion, bottom surface shape phase-match, prefabricated node roof beam 1 can be through grafting protruding 13 disect insertion to the recess of excavation like this, accomplish prepositioning, do not influence the grafting between follow-up tie-beam 2 and each anchor end 4 simultaneously yet and fix, the laminating that also can be fine of the bottom surface of tie-beam 2 is on the side slope soil body, corresponding effect can be played separately to the homoenergetic.

In another embodiment, a method for constructing a fabricated frame beam is further disclosed, as shown in fig. 2, including the steps of:

step one, preparing a prefabricated node beam 1, and curing to a specified strength, wherein the actual concrete strength is based on a design value;

leveling the side slope, excavating grooves matched with the splicing bulges on the prefabricated node beam 1, and taking the actual arrangement of the splicing bulges as the reference for the positions and the number of the grooves;

step three, as shown in fig. 3, the prefabricated node beam 1 is installed at the groove, the inserting protrusion is inserted into the groove, the positioning and limiting of the prefabricated node beam 1 are completed, and anchoring pretension construction is performed, namely, the end part of the anchor rod 5 penetrates through the anchoring hole 7, and then the anchor rod 5 is anchored on the prefabricated node beam 1 through screwing a nut or anchoring pretension;

and step four, as shown in figures 4-5, installing the connecting beam 2, and then grouting to form a frame beam supporting system.

In one embodiment, for the connecting beam 2 installed in step four, the following steps are specifically performed: and moving the connecting beam 2 to an installation position, respectively inserting the steel strands 3/steel wire ropes extending out of the two ends of the connecting beam 2 into the corresponding prefabricated node beams 1, and grouting.

In another embodiment, the connecting beam 2 is installed in the fourth step, specifically: and moving the connecting beam 2 to an installation position, respectively inserting the steel strands 3/steel wire ropes extending out of the two ends of the connecting beam 2 into the corresponding prefabricated node beams 1, and grouting.

In the two embodiments, when the connecting beam 2 is installed in the fourth step, two ends of the connecting beam 2 respectively penetrate through the connecting pipes and then are connected with the anchoring end 4 of the prefabricated node beam 1, the connecting pipes are sleeved at the connecting positions of the connecting beam 2 and the anchoring end 4, and after the connecting beam 2 is installed in place, grouting operation is performed in the connecting pipes.

Finally, as shown in fig. 6, after the grouting and tensioning in step four are completed, step five is also required to be performed: and (4) performing anchor sealing operation on the end of the anchor structure of the prefabricated node beam 1.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation 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 may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (15)

1. Assembled frame roof beam, its characterized in that includes:

the prefabricated node beam comprises a body, wherein the body is provided with a through anchoring hole, and the body protrudes outwards to form at least one anchoring end;

and two ends of the connecting beam are respectively connected with the anchoring end of one prefabricated node beam, the connecting beam is made of resin materials, and the stress strength of the connecting beam is smaller than that of the prefabricated node beam.

2. The fabricated frame beam of claim 1, wherein the connecting beam is made of at least one of PE, PVC, PP, or PET.

3. The fabricated frame beam of claim 1, wherein the tie beam cross-section is rectangular and the tie beam cross-section matches the anchor end cross-sectional dimension.

4. The fabricated frame beam of claim 1, wherein at least one through lightweight cavity is formed in the connecting beam along the length direction.

5. The fabricated frame beam of claim 1, wherein the prefabricated node beam is provided with a mounting cavity penetrating through the anchoring end and the body, the connection beam is provided with a penetrating cavity penetrating through the connection beam, when the connection beam is aligned with the anchoring end, the penetrating cavity is in direct communication with the mounting cavity, and a steel strand/steel wire rope is penetrated in the penetrating cavity and the mounting cavity.

6. The fabricated frame beam of claim 5, wherein the steel strands/steel cables are arranged in a full length, and sequentially pass through the prefabricated node beams and the connecting beams arranged in rows/columns and adjacently, and a grouting sealing structure for fixing the steel strands/steel cables is formed in each of the penetrating cavity and the mounting cavity.

7. The fabricated frame beam of claim 5, wherein the steel strand/steel wire rope is inserted into the insertion cavity, and both ends of the steel strand/steel wire rope extend out of the insertion cavity and extend outward, the part of the steel strand/steel wire rope penetrating out of the insertion cavity is inserted into the installation cavity, and a grouting sealing structure for fixing the steel strand/steel wire rope is formed in each of the insertion cavity and the installation cavity.

8. The fabricated frame beam of claim 1, further comprising a connecting pipe, wherein the connecting pipe is sleeved at a joint of 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 joint.

9. The fabricated frame beam of any one of claims 1-8, wherein the anchoring holes are opened along the anchoring force-receiving direction of the body, and one side of the body is further extended outward along the anchoring force-receiving direction to form insertion protrusions protruding from the body.

10. The fabricated frame beam of claim 9, wherein the insertion projection is centrally located on the side of the body, and the anchoring hole extends through the insertion projection.

11. The fabricated frame beam of claim 9, wherein the insertion projection is provided in plurality, and the plurality of insertion projections are arranged circumferentially around the anchoring hole.

12. The construction method of the assembled frame beam is characterized by comprising the following steps:

firstly, preparing a prefabricated node beam and maintaining the prefabricated node beam to a specified strength;

leveling the side slope, and excavating a groove matched with the splicing bulge on the prefabricated node beam;

step three, mounting the prefabricated node beam to the groove, and performing anchoring pretensioning construction;

and step four, mounting the connecting beam, and then grouting to form a frame beam supporting system.

13. The construction method according to claim 12, wherein the connection beam is installed in the fourth step, and specifically: and moving the connecting beam to the mounting position, enabling the steel strand/steel wire rope to sequentially penetrate through the prefabricated node beams and the connecting beam which are arranged at intervals to form an integral supporting structure, and grouting.

14. The construction method according to claim 12, wherein the connection beam is installed in the fourth step, and specifically: and moving the connecting beam to the mounting position, respectively inserting the steel strands/steel wire ropes extending out of the two ends of the connecting beam into the corresponding prefabricated node beams, and grouting.

15. The construction method according to any one of claims 12 to 14, wherein when the connection beam is installed in the fourth step, two ends of the connection beam respectively penetrate through the connection pipes and then are connected with the anchoring ends of the prefabricated node beams, the connection pipes are sleeved at the connection positions of the connection beams and the anchoring ends, and after the connection beam is installed in place, grouting operation is performed in the connection pipes.

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