CN211472510U

CN211472510U - GFRP reinforcing bar combination is strutted

Info

Publication number: CN211472510U
Application number: CN201921785719.5U
Authority: CN
Inventors: 金以超; 王云鹏
Original assignee: Jiangsu Xingsha Construction Engineering Group Co ltd
Current assignee: Jiangsu Xingsha Construction Engineering Group Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-09-11
Anticipated expiration: 2029-10-23

Abstract

The utility model discloses a GFRP props up stake, by concrete placement's pile body, including GFRP muscle cage and reinforcing bar, GFRP muscle cage includes GFRP muscle and stirrup, and GFRP muscle cage is surrounded by a plurality of GFRP muscle and connects to form, GFRP muscle hoop is along GFRP muscle axial interval arrangement, reinforcement is on every GFRP muscle on muscle cage top. The utility model adopts GFRP ribs with high tensile strength to replace steel bars, thereby saving energy, protecting environment and saving construction engineering investment; the GFRP rib is easy to break, and potential safety hazards to underground pipelines or building construction can be avoided; the GFRP reinforcement and the reinforcement are bound, so that the advantages of good tensile property of the GFRP reinforcement are brought into play, the defect of poor shearing resistance of the GFRP reinforcement is overcome, the GFRP reinforcement cage is not easy to deform, and the stability is good.

Description

GFRP reinforcing bar combination is strutted

Technical Field

The utility model relates to a GFRP reinforcing bar combination is strutted belongs to building technical field.

Background

With the progress of society and the development of economy, high-rise buildings are increasing day by day. At present, national economy of China is increasingly developed, modern buildings are rapidly developed towards large-scale and high-rise buildings, and a large number of large-scale buildings and high-rise buildings are pulled out of the ground and are increasingly increased. With the continuous construction of modern buildings, the importance of the supporting construction technology of foundation pits of modern buildings is increasingly highlighted.

In daily building deep foundation pit soil nail supporting construction, soil nails often touch the situation that the soil nails exceed a planned red line of a building, and the traditional steel bars, steel pipes and steel cable soil nails bring serious hidden dangers to future underground pipelines or underground building construction. Meanwhile, the metal soil nails are not easy to cut and remove, sparks are easy to generate when the metal soil nails are cut, and particularly, the metal soil nails have great danger to underground natural gas pipelines.

In order to respond to the energy policy of national construction of energy-saving, environment-friendly and conservation-oriented society, corresponding technical innovation is required.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a GFRP steel bar combination is strutted.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a GFRP reinforcing bar combination is strutted, this combination is strutted and is set up in the lower terminal surface on slope, including hat roof beam and a plurality of bored concrete pile, the lower terminal surface on slope is laid to hat roof beam level, the bored concrete pile is poured for the vertical downward drilling on the lower terminal surface on slope and is formed, hat roof beam is located the top of pouring the stake, every hat roof beam connects one row of bored concrete pile, the lateral part of bored concrete pile is provided with the stock that the slope inserted in basic unit's soil, hat roof beam level sets up interior support, interior support is relative with the domatic perpendicular on slope.

Furthermore, a concrete slope protection is sprayed on the slope surface, a plurality of GFRP reinforced soil nails are inserted into the slope, the GFRP reinforced soil nails are perpendicular to the plane where the concrete slope protection is located, and the upper ends of the GFRP reinforced soil nails are fixedly poured with the concrete slope protection.

Further, the cast-in-place pile comprises a GFRP reinforcement cage vertically inserted in the drill hole and concrete poured in the drill hole, the GFRP reinforcement cage is circumferentially arranged by a plurality of GFRP main reinforcements and is spirally wound around the outside of the GFRP reinforcement cage through stirrups, the stirrups are spirally wound from the bottom to the top of the GFRP reinforcement cage, and the GFRP main reinforcements and the stirrups are solidified and fixed by the concrete of the building.

Furthermore, the top of the GFRP reinforcement cage extends into the crown beam, a plurality of horizontally distributed reinforcements are arranged in the crown beam, the reinforcements are distributed in a row in the crown beam close to the top surface of the crown beam, the reinforcements are respectively distributed in a row on the left side surface and the right side surface of the crown beam close to the top surface, and the top of the GFRP main reinforcement is inserted into the reinforcement close to the row in the crown beam close to the top surface.

Further, the lower part of the cast-in-place pile is located below the bottom of the foundation pit.

Has the advantages that:

1. the utility model adopts GFRP ribs with high tensile strength to replace most of the steel bars, thereby saving energy, protecting environment and saving construction engineering investment;

2. the GFRP rib adopted by the utility model is easy to break, and can not bring potential safety hazard to underground pipelines or building construction;

3. the utility model combines GFRP bars and steel bars, so that the GFRP bar cage is not easy to deform and has good stability;

4. the utility model discloses a GFRP reinforcing bar combination is strutted, and GFRP muscle soil nail and stock are fixed, and it is simple to strut the construction, and supporting construction is firm, and the support effect is good.

Drawings

Figure 1 is a schematic view of the present invention,

figure 2 is a cross-sectional view of the present invention,

the concrete foundation comprises 1-GFRP reinforced soil nails, 2-anchor rods, 3-cast-in-place piles, 4-foundation pit bottom surfaces, 5-crown beams, 6-inner supports, 7-concrete revetments, 8-reinforcing steel bars, 9-stirrups and 10-GFRP steel bars.

Detailed Description

The present invention will be further clarified by the following description with reference to the attached drawings and specific examples, which should be understood as being merely illustrative of the present invention and not limiting the scope of the present invention, and modifications of various equivalent forms of the present invention by those skilled in the art after reading the present invention, all fall within the scope defined by the appended claims of the present application.

GFRP steel bar combination is strutted, should strut and set up in the lower terminal surface on slope, including a plurality of bored concrete pile 3 around the foundation ditch lateral wall, the bottom of bored concrete pile 3 inserts foundation ditch bottom surface 4, the top of bored concrete pile 3 extends to the bottom of slope, the bottom of slope is pour and is had hat roof beam 5, hat roof beam 5 presses the top at a plurality of bored concrete pile 3, it has concrete bank protection 7 to spray on the slope, it has a plurality of GFRP muscle soil nail 1 to insert perpendicularly with the slope plane in the slope, the upper end and the concrete bank protection 7 of GFRP muscle soil nail 1 are pour fixedly. Wherein, bored concrete pile 3 forms for reinforced concrete pouring, arrange by GFRP main muscle circumference and form the muscle cage through stirrup spiral winding, at GFRP muscle cage top ligature reinforcing bar 8, every GFRP muscle ligature HRB400 level reinforcing bar 8 of a same diameter, the bottom of reinforcing bar 8 should be 2000mm below the effective pile top, because GFRP muscle cage length is longer, the connection of the upper and lower section adopts steel fastener on the GFRP muscle 10 is indulged, every joint adopts and is no less than 2 steel fastener, avoid GFRP muscle cage to take place to warp, the muscle cage is placed in boring 3 holes of bored concrete pile, then carry out concrete pouring and form. When a large number of steel bars 8 are replaced by GFRP bars 10, the weight of the GFRP bar cage becomes light, and a measure of hanging a heavy object at the bottom of the GFRP bar cage should be taken if necessary to prevent the GFRP bar cage from floating upwards.

The utility model adopts GFRP ribs with high tensile strength to replace steel bars, thereby saving energy, protecting environment and saving construction engineering investment; the GFRP rib is easy to break, and potential safety hazards to underground pipelines or building construction can be avoided; the GFRP reinforcement and the reinforcement are bound, so that the advantages of good tensile property of the GFRP reinforcement are brought into play, the defect of poor shearing resistance of the GFRP reinforcement is overcome, the GFRP reinforcement cage is not easy to deform, and the stability is good.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a GFRP reinforcing bar combination is strutted, this combination is strutted and is set up in the lower terminal surface on slope, its characterized in that: including hat roof beam (5) and a plurality of bored concrete pile (3), the lower terminal surface on the slope is laid to hat roof beam (5) level, bored concrete pile (3) are pour for the vertical drilling downwards of lower terminal surface on the slope and are formed, hat roof beam (5) are located the top of bored concrete pile (3), every hat roof beam (5) are connected one row of bored concrete pile (3), the lateral part of bored concrete pile (3) is provided with anchor rod (2) that the slope inserted in basic unit's soil, hat roof beam (5) level sets up interior support (6), interior support (6) are relative with the domatic perpendicular on slope.

2. The GFRP reinforced combination support of claim 1, wherein: concrete protection slope (7) is sprayed on the slope surface, a plurality of GFRP (glass fiber reinforced plastics) soil nails (1) are inserted into the slope, the GFRP soil nails (1) are perpendicular to the plane where the concrete protection slope (7) is located, and the upper ends of the GFRP soil nails (1) are fixedly poured with the concrete protection slope (7).

3. The GFRP reinforced combination support of claim 1, wherein: the bored pile (3) comprises a GFRP reinforcement cage vertically inserted in a drill hole and concrete poured in the drill hole, the GFRP reinforcement cage is circumferentially arrayed by a plurality of GFRP main reinforcements and is spirally wound around the outside of the GFRP reinforcement cage through stirrups (9), the stirrups (9) spirally rise from the bottom of the GFRP reinforcement cage to the top of the GFRP reinforcement cage, and the GFRP main reinforcements and the stirrups (9) are both solidified and fixed by the concrete of a building.

4. The GFRP steel bar combined support of claim 3, wherein: the top of the GFRP reinforcement cage extends into the crown beam (5), a plurality of horizontally distributed reinforcements (8) are arranged in the crown beam (5), the reinforcements (8) are distributed in a row in the crown beam (5) close to the top surface of the crown beam, the reinforcements are respectively distributed in a row on the left side surface and the right side surface of the crown beam close to the top surface, and the top of the GFRP reinforcement (10) is inserted into the reinforcements (8) close to the top surface of the crown beam (5) in a row.

5. The GFRP reinforced combination support of claim 1, wherein: the lower part of the cast-in-place pile (3) is positioned below the bottom surface (4) of the foundation pit.