CN115030195A

CN115030195A - Prefabricated UHPC anchor rope frame roof beam

Info

Publication number: CN115030195A
Application number: CN202210643798.6A
Authority: CN
Inventors: 卢才金; 林镇; 张帆; 张登
Original assignee: Fujian Transportation Planning And Design Institute Co ltd
Current assignee: Fujian Transportation Planning And Design Institute Co ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-09-09

Abstract

The invention discloses a prefabricated UHPC anchor cable frame beam which comprises a cross beam, a longitudinal beam, a cross beam component and an anchor cable, wherein the cross beam is a cross beam; the cross beam component comprises an upper half part and a lower half part which are rotationally and symmetrically arranged at 90 degrees; the first cushion block is provided with a first assembling groove, the second cushion block is provided with a first avoidance groove, and the first clamping plate is provided with a second avoidance groove; the second cushion block and the first clamping plate are arranged in the first assembling groove in a spanning mode in sequence; the second clamping plate is placed on the end face, far away from the second cushion block, of the first clamping plate in the midspan and is parallel to the first cushion block; the two ends of the cross beam and the longitudinal beam are clamped between the second clamping plate and the first clamping plate; this scheme has disassembled the crossbeam of frame roof beam, has erected roof beam and cross beam component, and it all adopts UHPC ultra high performance concrete to prefabricate, makes its structural dimension reduce greatly, and the weight of every part is not more than 180 kilograms, and every part can both be carried out the manual work and assembled to solved the difficult problem that transportation, large-scale lifting device in mountain area are difficult to get into.

Description

Prefabricated UHPC anchor rope frame roof beam

Technical Field

The invention relates to the technical field of rock-soil anchoring engineering, in particular to a prefabricated UHPC anchor cable frame beam.

Background

At present, anchor rods (or anchor cables) are largely used for reinforcement engineering of excavation slopes; the anchor rods (or anchor cables) generally employ a frame as a slope-suppressing member and a reaction member to which a prestress is applied.

The frame generally adopts cast-in-place reinforced concrete, and cast-in-place construction needs processes such as formwork erection, reinforcing steel bar binding, concrete vibrating and the like, has the defects of more construction processes, long construction period and the like, and the processes of reinforcing steel bar binding, formwork erection and concrete vibrating all need aerial work, so that the quality and the safety are risky.

The main reasons are that the weight of the prefabricated frame structure is heavy, most slopes in China are high, the road condition of the treated slope area is poor, transportation is difficult, the hoisting capacity is difficult to meet the hoisting of the high slopes, and in practice, large hoisting equipment is difficult to reach the site because the slope section basically passes through narrow sidewalks and is transported in the construction process of railways, highways and the like.

Therefore, an anchor cable frame beam with low cost, rapid construction, safety and reliability needs to be provided to solve the above difficult problem of building slope protection engineering in the hard mountainous area.

Disclosure of Invention

In the prior art, the invention aims to provide a frame beam which is convenient to mount and reasonable in structure.

In order to achieve the purpose, the invention provides the following technical scheme:

a prefabricated UHPC anchor cable frame beam comprises cross beams arranged along a slope surface at intervals in the longitudinal direction, longitudinal beams arranged along the slope surface at intervals in the transverse direction, cross beam members positioned at the intersection of the cross beams and the longitudinal beams and anchor cables connected with the cross beam members in an anchoring manner; one end of the anchor cable, which is far away from the cross beam component, is in anchoring connection with the stable rock-soil layer under the slope surface, and the cross beam and the longitudinal beam are connected into a whole through the cross beam component;

the cross beam component comprises an upper half part and a lower half part which are rotationally and symmetrically arranged at 90 degrees, and the close ends of the upper half part and the lower half part are mutually abutted; the upper half part and the lower half part respectively comprise a first cushion block, a second cushion block, a first clamping plate and a second clamping plate which are sequentially arranged from inside to outside, and the lengths of the first clamping plate and the second clamping plate are both greater than the lengths of the first cushion block and the second cushion block;

the middle part of the side surface of the first cushion block, which is close to the second cushion block, is provided with a first assembling groove matched with the width of the second cushion block, the middle part of the side surface of the second cushion block, which is close to the first cushion block, is provided with a first avoidance groove matched with the width of the first cushion block, and the middle parts of two sides of the first clamping plate in the width direction are provided with second avoidance grooves matched with the width of the first cushion block; the second cushion block and the first clamping plate are arranged in the first assembling groove of the first cushion block in a spanning mode in sequence, and the second cushion block and the first clamping plate are connected with the first cushion block to form a cross-shaped structure; the second clamping plate is placed on the end face, far away from the second cushion block, of the first clamping plate in the midspan and is parallel to the first cushion block;

the two ends of the cross beam and the two ends of the longitudinal beam are abutted against the cushion blocks arranged on the two adjacent cross beam members, the two ends of the cross beam are clamped between the second clamping plate on the upper half portion and the first clamping plate on the lower half portion, and the two ends of the longitudinal beam are clamped between the first clamping plate on the upper half portion and the second clamping plate on the lower half portion;

furthermore, the width and the length of the first cushion block are the same as those of the second cushion block, and the length of the first clamping plate is the same as that of the second clamping plate; the length of the first clamping plate is the sum of the length of the first cushion block and the length of the cross beam, and the thickness of the cross beam is the sum of the thickness of the first cushion block and the thickness of the second cushion block; the length of the cross beam is the same as that of the longitudinal beam.

Furthermore, the side surface of the first cushion block, which is far away from the second clamping plate, is flush with the side surface of the second cushion block, which is far away from the second clamping plate, and the side surface of the first cushion block, which is close to the second clamping plate, is abutted against the end surface of the second clamping plate, which is close to the second cushion block.

Furthermore, a second assembling groove matched with the width of the second clamping plate is formed in the middle of the end face, far away from the second cushion block, of the first clamping plate, and the second clamping plate is placed in the second assembling groove of the first clamping plate in a midspan mode and connected with the first clamping plate to form a cross-shaped structure; the end face of the first clamping plate, which is far away from the second cushion block, is flush with the end face of the second clamping plate, which is far away from the second cushion block.

Furthermore, the first cushion block is provided with two first limiting strips along the length direction, and the two first limiting strips are symmetrically arranged at two sides of the end surface of the first cushion block, which is far away from the second clamping plate; and a first limiting groove matched with the first limiting strip is formed in the end face, far away from the first clamping plate, of the second cushion block, and the first limiting strip of the first cushion block is clamped in the first limiting groove of the second cushion block arranged in parallel with the first cushion block.

Furthermore, one side of the first clamping plate, which is abutted against the cross beam or the longitudinal beam, is provided with a second limiting groove arranged along the length direction of the first clamping plate, and one side of the second clamping plate, which is abutted against the cross beam or the longitudinal beam, is provided with a second limiting strip arranged along the length direction of the second clamping plate;

the side surfaces of the cross beam and the longitudinal beam, which are close to the first clamping plate, are provided with third limiting strips matched with the second limiting grooves, and the side surfaces of the cross beam and the longitudinal beam, which are close to the second clamping plate, are provided with third limiting grooves matched with the second limiting strips;

the third limiting strips of the cross beam and the longitudinal beam are clamped in the second limiting groove of the first clamping plate, and the second limiting strips of the second clamping plate are clamped in the third limiting grooves of the cross beam and the longitudinal beam.

Furthermore, the cross sections of the first limiting strip, the second limiting strip and the third limiting strip along the length direction are semicircular, trapezoidal or triangular with rounded corners.

Furthermore, the anchor cable comprises a cable body, a backing plate, an anchor and an anchor pier, wherein one end of the cable body is in anchoring connection with the stable rock-soil layer below the slope surface, the other end of the cable body penetrates through the cross beam member and the backing plate in sequence, the anchor is used for abutting the cross beam member on the slope surface and clamping a cross beam and a longitudinal beam which are connected with the cross beam member, and the anchor is embedded in the anchor pier; the right middle of the first cushion block, the second cushion block, the first clamping plate and the second clamping plate is provided with a through hole for penetrating the cable body.

Furthermore, the transverse beams and the longitudinal beams are I-shaped beams or hollow beams.

By adopting the technical scheme, compared with the prior art, the invention has the beneficial effects that:

this scheme has disassembled crossbeam, perpendicular roof beam and the cross beam component of frame roof beam, and it all adopts UHPC ultra high performance concrete to prefabricate, makes its structural dimension reduce greatly, and the weight of every part is not more than 180 kilograms, and every part can both carry out the manual work and assemble to solved the difficult problem that transportation, large-scale hoisting equipment in mountain area are difficult to get into.

The scheme is characterized in that the device comprises six parts, namely a first cushion block, a second cushion block, a first clamping plate, a second clamping plate, a cross beam and a vertical beam, wherein each part is made into a standard part; all the parts are placed in a certain sequence and mutually meshed, and meanwhile, the cushion block, the cross beam and the vertical beam are clamped between the first clamping plate and the second clamping plate, so that the cross beam component forms an integral superposed component; wherein, the anchor cable penetrates through the cushion block and the clamping plate, and the anchorage device is arranged at the intersection point of the first clamping plate and the second clamping plate; the anchor cable compresses the first cushion block, the second cushion block, the first clamping plate and the second clamping plate through the cushion plate, and simultaneously compresses the cross beam and the vertical beam through the first clamping plate and the second clamping plate; therefore, the cross beam members, the cross beams, and the vertical beams form a laminated structure to transmit the prestress to the rock-soil mass.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the frame beam of the present invention.

FIG. 2 is a schematic view of the combination structure of the cross beam, the longitudinal beam and the cross beam member of the present invention.

Fig. 3 is a schematic view of the internal structure of the frame beam according to the present invention.

Fig. 4 is an exploded view of the structure of the cross beam member of the present invention.

FIG. 5 is a schematic view of the first spacer of the present invention.

FIG. 6 is a schematic view of a second block according to the present invention.

Fig. 7 is a schematic structural view of the first splint of the present invention.

Fig. 8 is a schematic structural view of a second splint of the present invention.

Fig. 9 is a schematic structural view of the cross beam and the longitudinal beam of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in one of fig. 1 to 9, the present disclosure provides a prefabricated UHPC anchor cable frame beam, which includes cross beams 4 longitudinally spaced along a slope surface 1, longitudinal beams 5 transversely spaced along the slope surface 1, cross beam members 2 located at the intersections of the cross beams 4 and the longitudinal beams 5, and anchor cables 3 anchored and connected to the cross beam members 2; one end of the anchor cable 3, which is far away from the cross beam component 2, is in anchoring connection with the stable rock-soil layer below the slope surface 1, and the cross beam 4 and the longitudinal beam 5 are connected into a whole through the cross beam component 2;

referring to fig. 4-8, the cross beam member 2 includes an upper half portion and a lower half portion which are rotationally symmetrical at 90 °, and the ends of the upper half portion and the lower half portion which are close to each other are abutted to each other; the upper half part and the lower half part respectively comprise a first cushion block 23, a second cushion block 24, a first clamping plate 22 and a second clamping plate 21 which are sequentially arranged from inside to outside, and the lengths of the first clamping plate 22 and the second clamping plate 21 are larger than the lengths of the first cushion block 23 and the second cushion block 24;

the crossbeam 4, the vertical beam 5 and the cross beam member 2 of frame roof beam have been disassembled to this scheme, and it all adopts UHPC ultra high performance concrete to prefabricate, makes its structural dimension reduce greatly, and the weight of every part has alleviateed weight greatly, makes every part can both carry out the manual work and assemble to solved the difficult problem that transportation, large-scale hoisting equipment in mountain area are difficult to get into.

Referring to fig. 1 to 8, a first assembly groove 232 adapted to the width of the second cushion block 24 is formed in the middle of the side surface of the first cushion block 23 close to the second cushion block 24, a first avoidance groove 242 adapted to the width of the first cushion block 23 is formed in the middle of the side surface of the second cushion block 24 close to the first cushion block 23, and second avoidance grooves 221 adapted to the width of the first cushion block 23 are formed in the middle of both sides of the first clamping plate 22 in the width direction; the second cushion block 24 and the first clamping plate 22 are arranged in the first assembling groove 232 of the first cushion block 23 in a spanning manner in sequence, and the second cushion block 24 and the first clamping plate 22 are connected with the first cushion block 23 to form a cross structure; the second clamping plate 21 is placed on the end face, far away from the second cushion block 24, of the first clamping plate 22 in a midspan mode, and is arranged in parallel with the first cushion block 23.

The two ends of the cross beam 4 and the longitudinal beam 5 are abutted to the cushion blocks arranged on the two adjacent cross beam members 2, the two ends of the cross beam 4 are clamped between the second clamping plate 21 on the upper half portion and the first clamping plate 22 on the lower half portion, and the two ends of the longitudinal beam 5 are clamped between the first clamping plate 22 on the upper half portion and the second clamping plate 21 on the lower half portion; meanwhile, the length of the first clamping plate 22 is the sum of the length of the first cushion block 23 and the length of the cross beam 4, and the thickness of the cross beam 4 is the sum of the thickness of the first cushion block 23 and the thickness of the second cushion block 24; meanwhile, the cross beam 4 and the longitudinal beam 5 have the same length.

The scheme is characterized in that the device comprises six parts, namely a first cushion block 23, a second cushion block 24, a first clamping plate 22, a second clamping plate 21, a cross beam 4 and a vertical beam 5, wherein each part is made into a standard part; the parts are placed in a sequence and engaged with each other while sandwiching the spacer blocks, cross beams 4 and vertical beams 5 between a first clamping plate 22 and a second clamping plate 21, so that the cross beam member 2 forms an integral, superimposed member.

The cross beam member 2 is composed of four parts, namely a first cushion block 23, a second cushion block 24, a first clamping plate 22 and a second clamping plate 21, so that the structure, specification and configuration of the cross beam member directly influence the installation convenience and the flexibility of prefabricated outward transportation of the cross beam member 2; therefore, its thickness, length and weight are also one of the keys;

the thickness of the first clamping plate 22 and the second clamping plate 21 influences the height of the center of gravity of the cross beam member 2 to some extent and influences the prestress for clamping the cross beam 4 and the longitudinal beam 5; therefore, in the present embodiment, the thickness of the first clamping plate 22 and the second clamping plate 21 may be 4-8 cm, and preferably 6 cm;

the span lengths of the first clamping plate 22 and the second clamping plate 21 directly influence whether the transportation of the slope is convenient to stack or not, and whether the slope is installed on the slope surface 1 can restrain soil on the slope in a large area or not, so that the span lengths of the two opposite ends of the first clamping plate 22 and the second clamping plate 21 can be 200-400 cm, and are preferably 300 cm;

the span lengths of the first cushion block 23 and the second cushion block 24 directly influence whether the stacking is convenient during transportation, and influence the span lengths of the cross beam 4 and the longitudinal beam 5, so that in the embodiment, the span lengths of the two opposite ends of the first cushion block 23 and the second cushion block 24 can be 100-200 cm, preferably 150 cm;

the thickness of the first and

second spacers

23, 24 affects to some extent the height of the center of gravity of the cross beam member 2 and also affects to some extent the bending strength of the cross beam 4 and the longitudinal beam 5; therefore, in the embodiment, the thickness of the first cushion block 23 and the second cushion block 24 may be 10-30 cm, and preferably 20 cm;

in addition, the weight of the first cushion block 23, the second cushion block 24, the first clamping plate 22 and the second clamping plate 21 on the counterweight can be 80-180 Kg, and is preferably 150 Kg; because weight directly influences the exerted pressure of cross beam component 2 to domatic 1, also decided its structural strength and anti skew ability simultaneously to a certain extent, and in order to compromise the transportation of being convenient for, consequently, every part weight of cross beam component 2 all does not exceed 180Kg, has guaranteed to adopt manual fit to install, has avoided the whole problem of supplementary hoist and mount of needs main equipment, has improved the installation flexibility.

Referring to fig. 1, in order to make the overlapped members of the cross member 2 more compact, the first spacer 23 has the same width and length as the second spacer 24, and the first clamping plate 22 has the same length as the second clamping plate 21; the side surface of the first cushion block 23 far from the second clamping plate 21 is flush with the side surface of the second cushion block 24 far from the second clamping plate 21, and the side surface of the first cushion block 23 close to the second clamping plate 21 is abutted with the end surface of the second clamping plate 21 close to the second cushion block 24.

Further, a second assembling groove 222 matched with the width of the second clamping plate 21 is formed in the middle of the end face, away from the second cushion block 24, of the first clamping plate 22, and the second clamping plate 21 is placed in the second assembling groove 222 of the first clamping plate 22 in a midspan mode and connected with the first clamping plate 22 to form a cross-shaped structure; the end surface of the first clamping plate 22 far away from the second cushion block 24 is flush with the end surface of the second clamping plate 21 far away from the second cushion block 24.

In addition, the first cushion block 23 is provided with two first limiting strips 231 along the length direction thereof, and the two first limiting strips 231 are arranged on two sides of the end surface of the first cushion block 23 far away from the second clamping plate 21 in a bilateral symmetry manner; the end face of the second cushion block 24 far from the first clamping plate 22 is provided with a first limiting groove 241 matched with the first limiting strip 231, and the first limiting strip 231 of the first cushion block 23 is clamped in the first limiting groove 241 of the second cushion block 24 arranged in parallel with the first cushion block 23.

The four components of the first cushion block 23, the second cushion block 24, the first clamping plate 22 and the second clamping plate 21 are placed in a certain sequence and mutually meshed; the assembling efficiency of the cross beam member 2 can be greatly improved, and meanwhile, the fitting degree between adjacent parts is ensured, so that the prestress conduction between every two parts is greatly enhanced, and the cross beam member 2 is formed into a whole overlapped member.

Referring to fig. 2 and 4, in order to facilitate the installation of the cross beam member 2 and the cross beam 4 and the longitudinal beam 5, a second limiting groove 223 arranged along the length direction of the first clamping plate 22 is arranged on one side of the first clamping plate 22 abutting against the cross beam 4 or the longitudinal beam 5, and a second limiting strip 211 arranged along the length direction of the second clamping plate 21 is arranged on one side of the second clamping plate 21 abutting against the cross beam 4 or the longitudinal beam 5; the side surfaces of the cross beam 4 and the longitudinal beam 5 close to the first clamping plate 22 are respectively provided with a third limiting strip 42 matched with the second limiting groove 223, and the side surfaces of the cross beam 4 and the longitudinal beam 5 close to the second clamping plate 21 are respectively provided with a third limiting groove 41 matched with the second limiting strip 211;

the third limiting strips 42 of the cross beam 4 and the longitudinal beam 5 are clamped in the second limiting groove 223 of the first clamping plate 22, and the second limiting strip 211 of the second clamping plate 21 is clamped in the third limiting grooves 41 of the cross beam 4 and the longitudinal beam 5.

Therefore, the cross beam 4 and the vertical beam 5 are respectively clamped in the second limiting groove 223 and the third limiting groove 41 for limiting through the second limiting strip 211 and the third limiting strip 42, so that the cross beam 4 and the vertical beam 5 can be rapidly assembled; simultaneously, crossbeam 4 all coheres fixedly through the mortar with the contact surface who erects roof beam 5 to make crossbeam 4 and erect roof beam 5 and improved joint strength greatly, and made things convenient for anchor rope 3 to carry out the operation of applying prestressing force.

Referring to fig. 2 and 4, the cross sections of the first limiting strip 231, the second limiting strip 211 and the third limiting strip 42 along the length direction thereof are all in the shape of a semicircle, a trapezoid or a rounded triangle; the first limiting strip 231, the second limiting strip 211 and the third limiting strip 42 are used for limiting, so that the cross beam member 2, the cross beam 4 and the vertical beam 5 are convenient to assemble; meanwhile, the first limiting strip 231, the second limiting strip 211 and the third limiting strip 42 can also be used as structural reinforcing ribs, so that the bending strength of each part along the length direction of each part is greatly enhanced.

Referring to fig. 2 and 9, the cross beam 4 and the longitudinal beam 5 are both i-shaped beams or hollow beams; the cross beam 4 and the longitudinal beam 5 are I-shaped beams, so that the weight of the cross beam 4 and the longitudinal beam 5 is reduced, and meanwhile, the bending strength of the cross beam 4 and the longitudinal beam 5 is not reduced, so that the cross beam 4 and the longitudinal beam 5 can effectively transmit prestress; in addition, the cross beam 4 and the longitudinal beam 5 can also be hollow beams which can be formed by splicing two channel beams which are symmetrically arranged left and right; the third limiting grooves 41 and the third limiting strips 42 are arranged on the side plates on the two sides of the two channel beams, so that the structural strength of the cross beam 4 and the longitudinal beam 5 can not be affected, and the weight of the cross beam 4 and the longitudinal beam 5 is further reduced.

Referring to fig. 2 and 4, the anchor cable 3 comprises a cable body 31, a backing plate 32, an anchor and an anchor pier 33, wherein one end of the cable body 31 is connected with a stable rock-soil layer below the slope surface 1 in an anchoring manner, the other end of the cable body 31 penetrates through the cross beam member 2 and the backing plate 32 in sequence, the anchor is used for abutting the cross beam member 2 on the slope surface 1 and clamping the cross beam 4 and the longitudinal beam 5 connected with the cross beam member 2, and the anchor is embedded in the anchor pier 33;

the through holes 34 for the cable bodies 31 to penetrate are formed in the middles of the first cushion block 23, the second cushion block 24, the first clamping plate 22 and the second clamping plate 21, so that on one hand, the gravity centers can be relatively positioned on a middle vertical line, and on the other hand, good relative joint surfaces can be ensured among all parts of the cross beam member 2, and the reliability of relative fixation is improved.

Wherein the anchor cable 3 is penetrated from the cushion block and the clamping plate, and the anchorage is arranged at the intersection of the first clamping plate 22 and the second clamping plate 21; the anchor cables tightly press the first cushion block 23, the second cushion block 24, the first clamping plate 22 and the second clamping plate 21 through the cushion plates, and simultaneously the cross beam 4 and the vertical beam 5 are also tightly pressed through the first clamping plate 22 and the second clamping plate 21; thus, the cross beam members 2, the cross beams 4 and the vertical beams 5 form a laminated structure to transmit the prestress to the rock-soil mass.

The mounting method of the frame beam comprises the following steps:

(1) six components of the first and second head blocks 23 and 24, the first and

second clamp plates

22 and 21, the cross member 4, and the vertical beam 5 are prefabricated using UHPC ultra high performance concrete in a factory, and the above materials are transported to a construction site using a small machine such as a hoist or the like, or manually.

(2) Performing slope digging on the corresponding slope 1 area of the constructed anchor cable 3 according to the outline of the frame beam, and then leveling to form an installation surface;

(3) placing the cross beam member 2, the cross beam 4 and the vertical beam 5 on a mounting surface according to the structural sequence; the first cushion block 23, the second cushion block 24, the first clamping plate 22 and the second clamping plate 21 sequentially penetrate the cable body 31 through the through hole 34, and mortar is smeared on a contact surface between each component (the thickness of the mortar does not exceed 1/4 of the depth of the limiting groove).

(4) Sequentially installing a backing plate 32 and an anchorage device on the upper end face of the second clamping plate 21 of the upper half part, and then tensioning the tail end of the cable body 31 by a jack to apply pre-pressure;

(5) and after tensioning to a preset pre-pressure, locking the cable body 31, then cutting off the exposed cable body 31 according to a preset requirement, and performing anchor sealing treatment, namely setting the anchor pier 34.

In conclusion, the traditional frame beam structure is ingeniously split into a plurality of prefabricated anchoring parts which can be stacked and installed, and then the prefabricated anchoring parts are molded by UHPC materials, so that the prefabricated anchoring parts can be directly stacked and assembled into a whole on site after grooving and leveling are completed on the construction site; each part is the standard component, can adopt artifical installation on domatic, has improved domatic anchor's efficiency greatly.

In addition, the invention adopts a smart frame beam structure to reduce the weight of the beam and simultaneously strengthen the structural strength of the frame beam; the slope protection structure of large-span can have been realized to the frame roof beam to reduce anchor rope 3's installation density, and then reduced slope protection structure's expense.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A prefabricated UHPC anchor cable frame beam comprises cross beams (4) longitudinally arranged along a slope surface (1) at intervals, longitudinal beams (5) transversely arranged along the slope surface (1) at intervals, cross beam members (2) positioned at the intersection of the cross beams (4) and the longitudinal beams (5) and anchor cables (3) connected with the cross beam members (2) in an anchoring manner; one end of the anchor cable (3) far away from the cross beam component (2) is in anchoring connection with a stable rock-soil layer below the slope surface (1), and the cross beam (4) and the longitudinal beam (5) are connected into a whole through the cross beam component (2); the method is characterized in that:

the cross beam component (2) comprises an upper half part and a lower half part which are rotationally and symmetrically arranged at 90 degrees, and the close ends of the upper half part and the lower half part are mutually abutted; the upper half part and the lower half part respectively comprise a first cushion block (23), a second cushion block (24), a first clamping plate (22) and a second clamping plate (21) which are sequentially arranged from inside to outside, and the lengths of the first clamping plate (22) and the second clamping plate (21) are larger than those of the first cushion block (23) and the second cushion block (24);

a first assembling groove (232) matched with the second cushion block (24) in width is formed in the middle of the side face, close to the second cushion block (24), of the first cushion block (23), a first avoiding groove (242) matched with the first cushion block (23) in width is formed in the middle of the side face, close to the first cushion block (23), of the second cushion block (24), and second avoiding grooves (221) matched with the first cushion block (23) in width are formed in the middle of two sides of the first clamping plate (22) in the width direction; the second cushion block (24) and the first clamping plate (22) are placed in the first assembling groove (232) of the first cushion block (23) in a spanning mode in sequence, and the second cushion block (24) and the first clamping plate (22) are connected with the first cushion block (23) to form a cross-shaped structure; the second clamping plate (21) is placed on the end face, far away from the second cushion block (24), of the first clamping plate (22) in a midspan manner and is arranged in parallel with the first cushion block (23);

the two ends of the cross beam (4) and the two ends of the longitudinal beam (5) are abutted to the cushion blocks arranged on the two adjacent cross beam members (2), the two ends of the cross beam (4) are clamped between the second clamping plate (21) of the upper half portion and the first clamping plate (22) of the lower half portion, and the two ends of the longitudinal beam (5) are clamped between the first clamping plate (22) of the upper half portion and the second clamping plate (21) of the lower half portion.

2. The prefabricated UHPC anchor cable frame beam of claim 1, wherein: the width and the length of the first cushion block (23) are the same as those of the second cushion block (24), and the lengths of the first clamping plate (22) and the second clamping plate (21) are the same; the length of the first clamping plate (22) is the sum of the length of the first cushion block (23) and the length of the cross beam (4), and the thickness of the cross beam (4) is the sum of the thickness of the first cushion block (23) and the thickness of the second cushion block (24); the length of the cross beam (4) is the same as that of the longitudinal beam (5).

3. The prefabricated UHPC anchor cable frame beam of claim 1, wherein: the side face, far away from the second clamping plate (21), of the first cushion block (23) is flush with the side face, far away from the second clamping plate (21), of the second cushion block (24), and the side face, close to the second clamping plate (21), of the first cushion block (23) is abutted to the end face, close to the second cushion block (24), of the second clamping plate (21).

4. The prefabricated UHPC anchor cable frame beam of claim 1, wherein: a second assembling groove (222) matched with the width of the second clamping plate (21) is formed in the middle of the end face, far away from the second cushion block (24), of the first clamping plate (22), the second clamping plate (21) is placed in the second assembling groove (222) of the first clamping plate (22) in a midspan mode and is connected with the first clamping plate (22) to form a cross-shaped structure; the end face, far away from the second cushion block (24), of the first clamping plate (22) is flush with the end face, far away from the second cushion block (24), of the second clamping plate (21).

5. The prefabricated UHPC anchor cable frame beam of claim 1, wherein: the first cushion block (23) is provided with two first limiting strips (231) along the length direction, and the two first limiting strips (231) are arranged on two sides of the end surface, far away from the second clamping plate (21), of the first cushion block (23) in a bilateral symmetry manner; the end face, far away from the first clamping plate (22), of the second cushion block (24) is provided with a first limiting groove (241) matched with the first limiting strip (231), and the first limiting strip (231) of the first cushion block (23) is clamped in the first limiting groove (241) of the second cushion block (24) which is parallel to the first cushion block (23).

6. The prefabricated UHPC anchor cable frame beam of claim 1, wherein: one side, abutted against the cross beam (4) or the longitudinal beam (5), of the first clamping plate (22) is provided with a second limiting groove (223) arranged along the length direction of the first clamping plate (22), and one side, abutted against the cross beam (4) or the longitudinal beam (5), of the second clamping plate (21) is provided with a second limiting strip (211) arranged along the length direction of the second clamping plate (21);

the lateral surfaces of the cross beam (4) and the longitudinal beam (5) close to the first clamping plate (22) are respectively provided with a third limiting strip (42) matched with the second limiting groove (223), and the lateral surfaces of the cross beam (4) and the longitudinal beam (5) close to the second clamping plate (21) are respectively provided with a third limiting groove (41) matched with the second limiting strip (211);

the cross beam (4) and a third limiting strip (42) of the longitudinal beam (5) are clamped in a second limiting groove (223) of the first clamping plate (22), and a second limiting strip (211) of the second clamping plate (21) is clamped in a third limiting groove (41) of the cross beam (4) and the longitudinal beam (5).

7. The prefabricated UHPC anchor cable frame beam as claimed in claims 5-6, wherein: the cross sections of the first limiting strip (231), the second limiting strip (211) and the third limiting strip (42) along the length direction are semicircular, trapezoidal or rounded triangle.

8. The prefabricated UHPC anchor cable frame beam of claim 1, wherein: the anchor cable (3) comprises a cable body (31), a backing plate (32), an anchor and an anchor pier (33), one end of the cable body (31) is connected with a stable rock-soil layer below the slope surface (1) in an anchoring mode, the other end of the cable body (31) penetrates through the cross beam member (2) and the backing plate (32) in sequence, the anchor is used for enabling the cross beam member (2) to abut against the slope surface (1) and clamping a cross beam (4) and a longitudinal beam (5) connected with the cross beam member (2), and the anchor is embedded in the anchor pier (33); the right middle parts of the first cushion block (23), the second cushion block (24), the first clamping plate (22) and the second clamping plate (21) are provided with through holes (34) for the cable bodies (31) to penetrate through.

9. The prefabricated UHPC anchor cable frame beam of claim 1, wherein: the cross beam (4) and the longitudinal beam (5) are both I-shaped beams or hollow beams.