CN102535525A - Structure and method utilizing anti-floating anchor rods to support underground raft plates - Google Patents

Abstract

The invention discloses a structure for supporting underground raft slabs by using anti-floating anchor rods, comprising an upper row of raft slab reinforcement frames, a lower row of raft slab reinforcement frames laid on the ground, and a supporting structure for supporting the upper row of raft slab reinforcement frames, It is characterized in that: the support structure includes multiple groups of anti-floating anchor rods and multiple support rods, each group of anti-floating anchor rods is buried on the ground at fixed intervals, and the top is tightly connected with the support rods; the upper The raft slab reinforcement frame is erected on the support rod. Due to the adoption of a structure and method for supporting underground rafts by using anti-floating anchor rods of the present invention, the use of basement raft anti-floating anchor rods to anchor parts instead of horse stool bars has been realized, which has the advantages of convenient construction, safety and reliability, green energy saving, and convenient construction. The advantage of low cost.

Description

Structure and method of supporting underground raft with anti-floating anchor

technical field

The invention relates to a supporting structure and a method, in particular to a structure and a method for supporting an underground raft by using an anti-floating anchor rod.

Background technique

Referring to Fig. 3, the structure of the underground raft mainly includes an upper row of raft reinforcement frames 1 and a lower row of raft reinforcement frames 2. When erecting, support is provided to the upper row of raft reinforcement frames 1 through horse stool bars 6 to keep both The interval distance is that after the erection of the upper row of raft reinforcement frames 1 and the lower row of raft reinforcement frames 2 is completed, concrete is poured to form a complete underground raft structure. When the comprehensive load generated by the building's own weight and other external factors is not enough to balance the buoyancy generated by the groundwater, a certain vertical external force must be applied to the foundation floor to balance the buoyancy. The lower end of the floating anchor rod 3 is buried on the ground, and the upper end extends between the upper row of raft steel frame 1 and the lower row of raft steel frame 2. After the concrete pouring of the underground raft is completed, the upper end of the anti-floating anchor rod 3 is fastened to the Between the upper row of raft steel frame 1 and the lower row of raft steel frame 2, the tensile force generated by the tensile strength of the anchor itself and the pullout force generated by the friction between the anchor and the soil layer are used. Restrain the floating trend of the foundation floor, and play a role in resisting the floating of the foundation.

However, in the above-mentioned construction process, the horse stool bars 6 that support the upper row of raft reinforcement frames 1 are made of large-scale steel bars, and the spacing is small, so more steel bars need to be used for production, and the material consumption is large. There are many manual processing, and there are problems such as unstable steel support and easy bending deformation, inconvenient use during construction, and difficult adjustment. Therefore, it is really necessary to further improve.

Contents of the invention

The purpose of the present invention is to overcome the defects of the prior art, and provide a structure and method for supporting underground rafts by using anti-floating anchor rods, which realizes the use of basement raft anti-floating anchor rods instead of horse stool bars, and has the advantages of convenient and safe construction. The advantages of reliability, green energy saving and low construction cost.

The technical scheme for realizing the above-mentioned purpose is:

A structure of the present invention that utilizes anti-floating anchor rods to support underground rafts,

It includes an upper row of raft reinforcement frames, a lower row of raft reinforcement frames laid on the ground, and a supporting structure supporting the upper row of raft reinforcement frames. The set of anti-floating anchor rods is buried on the ground at fixed intervals, and the top is tightly connected with the support rods; the upper row of raft reinforcement frames is erected on the support rods.

Each group of above-mentioned anti-floating anchor rods includes three anti-floating anchor rods.

The tops of the three anti-floating anchor rods are welded to the support rods.

The tops of the above three anti-floating anchor rods are tied to the support rods.

The invention relates to a method for supporting a raft steel bar frame on an underground raft by using an anti-floating anchor rod.

Include steps:

The anti-floating anchor rods are divided into multiple groups, and the anti-floating anchor rods of each group are buried on the ground at fixed intervals;

affixing support rods at the top of the plurality of sets of anti-floating anchor rods;

Erection of the upper row of raft reinforcement frames on the support rods.

Each set of anti-floating anchor rods includes three anti-floating anchor rods; the tops of the three anti-floating anchor rods are welded to the support rods.

Each set of above-mentioned anti-floating anchor rods includes three anti-floating anchor rods; the tops of the three anti-floating anchor rods are tied to the support rods.

The present invention has the following beneficial effects due to the adoption of the above technical scheme:

The top of the anti-floating anchor is tightly connected with the support rod, and the connection part of the top of the anti-floating anchor is used as a support, so that the anti-floating anchor maintains the original function of preventing the floating of the underground raft and at the same time acts as an anti-floating anchor instead of the raft The role of the board stool bar is to save the amount of steel bars used, reduce labor costs, reduce costs, save energy, and is not easy to be damaged and deformed by trampling.

Description of drawings

Fig. 1 is the system structure schematic diagram of the structure and method of the present invention utilizing anti-floating anchor rods to support underground rafts;

Fig. 2 is a schematic diagram of the connection structure between the anti-floating anchor rod and the support rod of the structure and method of utilizing the anti-floating anchor rod to support the underground raft in the present invention;

Fig. 3 is a schematic diagram of the system structure of an underground raft supporting structure in the prior art.

Detailed ways

The present invention will be further described below in conjunction with specific examples.

Please refer to Fig. 1, a kind of structure that utilizes anti-floating anchor rods to support underground rafts of the present invention includes an upper row of raft reinforcement frames 1, a lower row of raft reinforcement frames 2 laid on the ground 4 and a support upper row of raft reinforcement The support structure of the frame 1, the support structure includes a plurality of groups of anti-floating anchor rods 3 and a plurality of support rods 5, each group of anti-floating anchor rods 3 is buried in the ground 4 at fixed intervals, and the top is firmly connected with the support rods 5; the upper row of rafts The plate reinforcement frame 1 is erected on the support rod 5 . The distance between adjacent anti-floating anchor rods 3 is 1800mm, and the distance between the upper row of raft reinforcement frames 1 and the lower row of raft reinforcement frames 2 is 1000mm.

Please refer to FIG. 2 , each group of anti-floating anchor rods 3 includes three anti-floating anchor rods 3 ; the tops of the three anti-floating anchor rods 3 are welded or tied to the support rods 5 .

The top of the anti-floating anchor rod 3 is tightly connected with the support rod 5, and the connection part at the top of the anti-floating anchor rod 3 is used as a support, so that the present invention can remove the horse stool in the prior art, and the anti-floating anchor rod 3 maintains the original prevention At the same time as the floating effect of the underground raft, it also plays the role of anti-floating anchor rod 3 replacing the raft horse stool bar to support the upper row of raft steel frame 1, thereby greatly reducing the number of steel bars required in the construction process and saving the use of steel bars Quantity, reducing labor costs, and the structure is not easily damaged and deformed by trampling.

The following methods can be used to support the reinforcement frame of the raft on the underground raft.

Use the anti-floating anchor rod 3 to support the raft reinforcement frame 1 on the underground raft;

Include steps:

The anti-floating anchor rods 3 are divided into multiple groups, and each group of anti-floating anchor rods 3 is buried on the ground 4 at fixed intervals;

Affix the support rod 5 at the top of the plurality of sets of anti-floating anchor rods 3;

The upper row of raft reinforcement frame 1 is erected on the support rod 5 .

Each group of anti-floating anchor rods 3 includes three anti-floating anchor rods 3; the tops of the three anti-floating anchor rods 3 are welded or tied to the support rods 5.

The use of the anti-floating anchor rod 3 of the basement raft to replace the horse stool bar has the advantages of convenient construction, safety and reliability, green energy saving, and low construction cost.

The present invention has been described in detail above with reference to the embodiments of the accompanying drawings, and those skilled in the art can make various changes to the present invention according to the above description. Therefore, some details in the embodiments should not be construed as limiting the present invention, and the present invention will take the scope defined by the appended claims as the protection scope of the present invention.

Claims (8)

1. A structure utilizing anti-floating anchor rods to support underground rafts, comprising an upper row of raft reinforcement frames, a lower row of raft reinforcement frames laid on the ground and a supporting structure supporting said upper row of raft reinforcement frames, characterized in In that: the support structure includes a plurality of groups of anti-floating anchor rods and a plurality of support rods, each group of anti-floating anchor rods is buried on the ground at fixed intervals, and the top is firmly connected with the support rods; the upper row of rafts The reinforcement frame is erected on the support rod. 2. The structure for supporting underground rafts with anti-floating anchors according to claim 1, wherein each set of anti-floating anchors includes three anti-floating anchors. 3. The structure for supporting underground rafts with anti-floating anchor rods according to claim 2, characterized in that the tops of the three anti-floating anchor rods are welded to the support rods. 4. The structure for supporting underground rafts with anti-floating anchor rods according to claim 2, characterized in that the tops of the three anti-floating anchor rods are tied to the support rods. 5. A method of utilizing anti-floating anchor rods to support underground raft slab reinforcement frames. 6. The method according to claim 5, characterized in that, comprising the steps of: The anti-floating anchor rods are divided into multiple groups, and the anti-floating anchor rods of each group are buried on the ground at fixed intervals; affixing support rods at the top of the plurality of sets of anti-floating anchor rods; Erection of the upper row of raft reinforcement frames on the support rods. 7. The method according to claim 6, wherein each set of anti-floating anchor rods includes three anti-floating anchor rods; tops of the three anti-floating anchor rods are welded to the support rods. 8 . The method according to claim 6 , wherein each group of the anti-floating anchors includes three anti-floating anchors; the tops of the three anti-floating anchors are tied to the support rods.

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