House building pile foundation reinforcement cage framework

Abstract

The utility model discloses a house building pile foundation reinforcement cage framework which comprises a reinforcement cage mechanism, the reinforcement cage mechanism comprises an annular steel base, and the top of the annular steel base is fixedly connected with a reinforcement cage. The house building pile foundation reinforcement cage framework further comprises an anti-deformation pulling and anchoring mechanism fixedly connected into the reinforcement cage. The anti-deformation pulling and anchoring mechanism comprises a plurality of I-shaped plate pulling and fixing pieces fixed to the reinforcement cage. The I-shaped plate pulling and fixing piece comprises I-shaped steel, the I-shaped steel comprises end steel parts arranged on the two sides at intervals and a connecting steel part integrally formed between the end steel parts, and a plurality of first pulling and anchoring bars are fixedly connected to the connecting steel part. The first pull anchor bars are fixed on the reinforcement cage, and the end steel parts are fixedly connected with a plurality of second pull anchor bars; and the second pull anchor bar is fixed on the reinforcement cage. According to the device, the compressive load resistance and the deformation resistance under the high-voltage load of the pile foundation are greatly improved, so that the safety and the stability of a building system are improved, and the device can be used for the pile foundation of a high-rise building system.

Description

Technical Field

[0001] The utility model belongs to the technical field of building pile foundation, in particular to a building pile foundation steel cage frame. Background Art

[0002] The pile foundation of a building is composed of load-bearing piles formed by a steel cage frame and a cap cast on the ground. The pile foundation can penetrate the soft soil layer and support the building system on the hard soil layer, thereby maintaining the stability of the building structure.

[0003] During the construction process, the prefabricated pile foundation steel cage is first placed in the pre-excavated pile hole at the pile foundation driving position, and concrete is poured randomly. The pile foundation steel cage can bear high loads to realize the pile foundation as the load-bearing structure of the building system.

[0004] During the prefabrication of the steel cage structure of the pile foundation, vertical bars with large height are used to tie the circular stirrups together, and then the steel cage is lowered vertically into the pile hole by a crane, and then concrete is poured to form the pile foundation. However, the pile foundation skeleton of the steel cage is mostly suitable for building systems with ordinary storey heights, and its load-bearing capacity is limited. When the load-bearing capacity of the building system is relatively large, such as high-rise buildings, this type of pile foundation has insufficient load-bearing capacity. During its use as a load-bearing system for high-rise building systems, its stability and safety are not high. This is reflected in the fact that when the load-bearing time is long or it is affected by earthquakes, the steel skeleton of the pile foundation system is prone to bending and deformation, resulting in a significant reduction in the load-bearing stability.

[0005] The specific reason is that as a conventional building system, the steel cage pile foundation skeleton does not require a reinforced design of the skeleton. However, for high-rise buildings, the building system is subjected to a large load and the pile foundation bears a very large load. As a result, the steel cage skeleton cannot bear a large load without effectively strengthening the pile foundation, which has a great impact on the safety, service life and seismic resistance of the building system. Utility Model Content

[0006] Based on the above background, the purpose of the utility model is to provide a steel cage framework for pile foundation of building construction.

[0007] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0008] A steel cage skeleton for a pile foundation of a building, comprising a steel cage mechanism, wherein the steel cage mechanism comprises an annular steel base, and a steel cage is fixedly connected to the top of the annular steel base;

[0009] The building pile foundation steel cage skeleton also includes an anti-deformation anchor mechanism fixedly connected to the steel cage, and the anti-deformation anchor mechanism includes a plurality of I-shaped plate anchors fixed to the steel cage;

[0010] The I-shaped plate fastening member comprises an I-shaped steel, the I-shaped steel comprises end steel portions spaced apart on both sides and a connecting steel portion integrally formed between the end steel portions, and a plurality of first anchor bars are fixedly connected to the connecting steel portion;

[0011] The first anchor bars are fixed on the steel cage, and a plurality of second anchor bars are fixedly connected to the end steel parts; the second anchor bars are fixed on the steel cage.

[0012] Preferably, the steel cage comprises a plurality of vertical ribs welded to the top position of the annular steel base;

[0013] The vertical bars are distributed in a circular array, and the steel cage further comprises a plurality of circular stirrups, which are tied to the outside of the vertical bars.

[0014] Preferably, the first anchor bar and the second anchor bar penetrate the vertical bar;

[0015] The ends of the first anchor bar and the second anchor bar are integrally formed with hook bars provided with bent hooks.

[0016] Preferably, a bottom anchor fixing structure is provided on the annular steel base, and after the steel cage mechanism is cast, the bottom anchor fixing structure is anchored on the ground.

[0017] Preferably, the bottom anchor fixing structure comprises an annular groove opened at the bottom position of the annular steel base, and a plurality of vertically arranged anchor bolts are welded in the annular groove.

[0018] Preferably, a side anchor mechanism is fixedly connected to the top of the annular steel base.

[0019] Preferably, the side-pull anchor mechanism comprises a plurality of U-shaped anchor plates welded to the top edge of the annular steel base, and a plurality of side-pull anchor column heads are welded to the U-shaped anchor plates.

[0020] Preferably, the U-shaped anchor plate has anchoring parts spaced apart on both sides, and the side-pull anchor column heads are welded to the anchoring parts.

[0021] Preferably, a plurality of side-pull anchor stud heads spaced apart vertically are welded to the inner and outer side walls of the anchoring portion, respectively.

[0022] The utility model has the following beneficial effects:

[0023] 1. The I-shaped plate fastening fixture includes an I-shaped steel, which includes end steel parts spaced apart on both sides and a connecting steel part integrally formed between the end steel parts, and the connecting steel part is fixedly connected with a plurality of first anchor bars; the first anchor bars are fixed on the steel cage, and the end steel parts are fixedly connected with a plurality of second anchor bars; the second anchor bars are fixed on the steel cage. The first anchor bars are pulled at the left and right sides of the steel cage, and the second anchor bars are pulled at the front and rear sides of the vertical bars.

[0024] The entire cage structure is then reinforced by internal pulling, which improves the deformation resistance of the steel cage with a large height. For example, when one side of the steel cage is under greater pressure, it is pulled on the other side to keep it from being easily deformed.

[0025] 2. The ends of the first anchor bar and the second anchor bar are integrally formed with hook bars. After pouring, the hook bars are wrapped in the steel cage and form a gripping force with the concrete, thereby further increasing the stability of the steel cage and the entire load-bearing pile system.

[0026] 3. After pouring concrete, the side-pull anchor column head is wrapped in the concrete. At this time, due to the annular distribution of the U-shaped anchor plate, a circumferentially distributed side-pull anchor fixing force is formed in the lower layer of the steel cage. In this way, the stability of the lower layer of the pile foundation is greatly increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the utility model;

[0029] Figure 2 In the embodiment of the utility model Figure 1 A top view of the

[0030] Figure 3 This is a schematic diagram of the structure of the I-shaped plate fastening fixture in the embodiment of the utility model;

[0031] Figure 4 It is a structural schematic diagram of the side-pull anchor mechanism in the embodiment of the utility model;

[0032] Figure 5 It is a schematic structural diagram of the distribution mode of the I-shaped plate tensioning fixtures in the steel cage in the embodiment of the utility model.

[0033] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0037] Example 1

[0038] like Figure 1-5 As shown, a steel cage skeleton for a pile foundation of a building construction includes a steel cage mechanism, wherein the steel cage mechanism includes an annular steel base 2, and a steel cage 1 is fixedly connected to the top of the annular steel base 2. The structure of the steel cage 1 is:

[0039] The steel cage 1 includes a plurality of vertical ribs 11 welded to the top of the annular steel base 2 (same as the existing method, the upper end of the vertical ribs 11 is integrally formed with a hook portion); the vertical ribs 11 are distributed in an annular array, and the steel cage 1 also includes a plurality of annular stirrups 12, which are tied to the outside of the vertical ribs 11. The method of tying the annular stirrups 12 to the vertical ribs 11 is a conventional method disclosed in the prior art.

[0040] The above-mentioned building pile foundation steel cage 1 skeleton also includes an anti-deformation anchor mechanism fixedly connected to the steel cage 1. By installing the anti-deformation anchor mechanism in the cage cavity of the steel cage 1, the strength of the entire steel cage 1 is increased, and it remains unchanged for a long time during the high load bearing process.

[0041] Specifically, the anti-deformation anchor mechanism includes a plurality of I-shaped plate anchors 3 fixed on the steel cage 1 ; the I-shaped plate anchors 3 pull the entire steel cage 1 structure layer by layer in the cage cavity to reinforce the steel cage 1 .

[0042] Specifically, the I-shaped plate fastener 3 includes an I-shaped steel 31, which includes end steel portions spaced apart on both sides and a connecting steel portion integrally formed between the end steel portions, and a plurality of first tension anchor bars 32 are fixedly connected to the connecting steel portion; the first tension anchor bars 32 are fixed to the steel cage 1, and a plurality of second tension anchor bars 33 are fixedly connected to the end steel portions; the second tension anchor bars 33 are fixed to the steel cage 1.

[0043] Specifically, the connecting steel part is provided with a double layer of first anchor bars 32, and the first anchor bars 32 (and second anchor bars 33) penetrate the vertical bars 11. Specifically, the first anchor bars 32 are pulled at the left and right sides of the steel cage 1, and the second anchor bars 33 are pulled at the front and rear sides of the vertical bars 11.

[0044] The entire cage structure is reinforced from the inside by the first anchor bars 32 and the second anchor bars 33 on the I-shaped plate fastening members 3 which are spaced apart from each other. This method can improve the deformation resistance of the steel cage 1 with a large height. For example, when one side of the steel cage 1 is under great pressure, it can be pulled on the other side to prevent it from being easily deformed.

[0045] At the same time, in order to improve the bond strength between the steel cage 1 and the poured concrete, the ends of the first anchor bar 32 and the second anchor bar 33 are integrally formed with hook bars 321 arranged in a bent hook.

[0046] After pouring, the hook bars 321 are wrapped in the steel cage 1 and form a gripping force with the concrete, thereby further increasing the stability of the steel cage 1 and the entire load-bearing pile system.

[0047] Example 2

[0048] like Figure 1-5 As shown, based on the structure of Example 1, this embodiment is provided with a bottom anchor fixing structure on the annular steel base 2. After the steel cage 1 is cast, the bottom anchor fixing structure is anchored on the ground. In this way, the stability between the steel cage 1 and the load soil layer is increased, and the anti-deviating ability of the entire pile foundation structure is greatly improved. Specifically, the bottom anchor fixing structure includes an annular groove A opened at the bottom of the annular steel base 2, and a plurality of vertically arranged anchor bolts 21 are welded in the annular groove A.

[0049] After the anchor bolt 21 is embedded in the soil layer, as the concrete is filled and poured, the anchor bolt forms an anchoring force with the soil layer and the bottom layer of concrete, thereby effectively increasing the anti-deflection ability of the pile foundation.

[0050] Example 3

[0051] like Figure 1-5 As shown, based on the structure of Example 1, in order to increase the gripping strength between the entire steel cage 1 and the poured concrete, the top of the annular steel base 2 is fixedly connected with a side anchor mechanism.

[0052] The side-pull anchor mechanism comprises a plurality of U-shaped anchor plates 41 welded to the top edge of the annular steel base 2 , and a plurality of side-pull anchor column heads 42 are welded to the U-shaped anchor plates 41 .

[0053] Specifically, the U-shaped anchor plate 41 has anchoring parts spaced apart on both sides, and the side-pull anchor column heads 42 are welded to the anchoring parts. A plurality of side-pull anchor column heads 42 spaced apart up and down are welded to the inner and outer side walls of the anchoring parts.

[0054] After pouring, the side-pull anchor column head 42 is wrapped in concrete. At this time, since the U-shaped anchor plate 41 is distributed in an annular shape, a circumferentially distributed side-pull anchor fixing force is formed in the lower layer of the steel cage. In this way, the stability of the lower layer of the pile foundation is greatly increased.

[0055] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A steel cage framework for pile foundation of building construction, characterized in that: It includes a steel cage mechanism, which includes an annular steel base, and the top of the annular steel base is fixedly connected with a steel cage; The building pile foundation steel cage skeleton also includes an anti-deformation anchor mechanism fixedly connected to the steel cage, and the anti-deformation anchor mechanism includes a plurality of I-shaped plate anchors fixed to the steel cage; The I-shaped plate fastening member comprises an I-shaped steel, the I-shaped steel comprises end steel portions spaced apart on both sides and a connecting steel portion integrally formed between the end steel portions, and a plurality of first anchor bars are fixedly connected to the connecting steel portion; The first anchor bars are fixed on the steel cage, and a plurality of second anchor bars are fixedly connected to the end steel parts; the second anchor bars are fixed on the steel cage.

2. The steel cage framework for pile foundation of building construction according to claim 1 is characterized in that: The steel cage includes a plurality of vertical ribs welded to the top of the annular steel base; The vertical bars are distributed in a circular array, and the steel cage further comprises a plurality of circular stirrups, which are tied to the outside of the vertical bars.

3. The steel cage framework for pile foundation of building construction according to claim 2 is characterized in that: The first anchor bar and the second anchor bar pass through the vertical bar; The ends of the first anchor bar and the second anchor bar are integrally formed with hook bars provided with bent hooks.

4. The steel cage framework for pile foundation of building construction according to claim 1, characterized in that: A bottom anchor fixing structure is arranged on the annular steel base, and after the steel cage mechanism is cast, the bottom anchor fixing structure is anchored on the ground.

5. The steel cage framework for pile foundation of building construction according to claim 4 is characterized in that: The bottom anchor fixing structure comprises an annular groove opened at the bottom position of the annular steel base, and a plurality of vertically arranged anchor bolts are welded in the annular groove.

6. The steel cage framework for pile foundation of building construction according to claim 1, characterized in that: The top of the annular steel base is fixedly connected with a side anchor mechanism.

7. The steel cage framework for pile foundation of building construction according to claim 6 is characterized in that: The side-pull anchor mechanism comprises a plurality of U-shaped anchor plates welded to the top edge of the annular steel base, and a plurality of side-pull anchor column heads are welded to the U-shaped anchor plates.

8. The steel cage framework for pile foundation of building construction according to claim 7, characterized in that: The U-shaped anchor plate has anchoring parts spaced apart on both sides, and the side-pull anchor column heads are welded to the anchoring parts.

9. The steel cage framework for pile foundation of building construction according to claim 8, characterized in that: A plurality of side-pull anchor column heads spaced apart vertically are respectively welded on the inner and outer side walls of the anchoring portion.

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