Supporting structure in settlement post-cast strip and structure of structural bottom plate

Abstract

The utility model provides a supporting structure in a settlement post-cast strip and a structure of a structure bottom plate, the supporting structure in the settlement post-cast strip is arranged between a first structure bottom plate and a second structure bottom plate, and the supporting structure in the settlement post-cast strip comprises a first fixing part, a second fixing part, a third fixing part and a fourth fixing part, the second fixing part is horizontally and fixedly arranged on the second structure bottom plate; the supporting part is arranged between the first structure bottom plate and the second structure bottom plate and detachably connected with the first fixing part and the second fixing part, and the position relation between the supporting part and the second fixing part is adjustable. The supporting part is arranged between the main building and the structural bottom plate of the skirt room or the basement, the load in the horizontal direction is transmitted to the structural bottom plate of the basement, the position relation between the supporting part and the second fixing part arranged on the second structural bottom plate can be adjusted, and a settlement space is provided for differential settlement of the main building of the high-rise building and the skirt room or the basement.

Description

Technical Field

[0001] The present application relates to the field of building construction, and in particular to a supporting structure and a structural base plate structure within a settlement post-cast zone. Background Art

[0002] Post-settlement joints are temporary construction joints set up at the corresponding positions of the structural base plate, walls and beams. They are set up around the main building of a high-rise building. They are mainly used to solve the settlement difference between the main building and the annex or basement of the high-rise building, prevent harmful cracks that may be caused by uneven shrinkage or uneven settlement of the cast-in-place reinforced concrete structure, and reduce the impact of differential settlement on the foundation structure and superstructure.

[0003] Due to the differences in load, foundation conditions and construction time, there are differences in settlement between the main building and the basement or podium of a high-rise building. At present, the settlement post-casting strip is usually closed and poured after the settlement of the main building of the high-rise building is stabilized. This method will cause the basement structure floor to be in an unclosed state for a long time, and then the horizontal stiffness of the basement structure floor is discontinuous, and the horizontal load cannot be transmitted, affecting the stability and safety of the building structure.

[0004] Therefore, it is necessary to propose a supporting structure that is set in the post-settlement pouring and can allow a certain range of differential settlement between the main building and the basement or podium. Utility Model Content

[0005] In view of this, according to the first aspect of the present application, a supporting structure in a settlement post-casting strip is proposed, and the supporting structure in the settlement post-casting strip is arranged between a first structural bottom plate and a second structural bottom plate, and the supporting structure in the settlement post-casting strip includes: a first fixing part: horizontally fixed on the first structural bottom plate; a second fixing part: horizontally fixed on the second structural bottom plate; and a supporting part: arranged between the first structural bottom plate and the second structural bottom plate, and detachably connected to the first fixing part and the second fixing part, wherein the positional relationship between the supporting part and the second fixing part is adjustable.

[0006] Specifically, the supporting portion is adjustable relative to the second fixing portion in the longitudinal direction of the second structural base plate.

[0007] Specifically, the support portion includes a support member horizontally arranged between the first structural bottom plate and the second structural bottom plate.

[0008] Specifically, the support portion further includes a first end plate and a second end plate, which are respectively fixedly disposed at two ends of the support member and are perpendicular to the support member.

[0009] Specifically, the first end plate and the second end plate are provided with reserved holes.

[0010] Specifically, the reserved hole on the second end plate is an elongated hole for detachably connecting with the second fixing portion, and the reserved hole on the first end plate is a circular hole for detachably connecting with the first fixing portion.

[0011] Specifically, the elongated hole extends in a longitudinal direction; and the second fixing portion is movable in the longitudinal direction of the elongated hole.

[0012] Specifically, the support portion is made of high-strength material.

[0013] Specifically, the first structural floor is the structural floor of the main building of the high-rise building, and the second structural floor is the structural floor of the basement or the podium.

[0014] According to a second aspect of the present application, a structure of a structural base plate is proposed, and the structure of the structural base plate has the above-mentioned supporting structure in the settlement post-casting zone.

[0015] The support part of the support structure in the settlement post-cast zone proposed in the present application is arranged between the structural bottom plate of the main building and the podium or basement, which transfers the horizontal load to the structural bottom plate of the basement. In addition, the position relationship between the support part and the second fixed part arranged on the second structural bottom plate is adjustable, which provides settlement space for the differential settlement of the main building and the podium or basement of the high-rise building. Therefore, the support structure proposed in the present application can provide horizontal support to the structural bottom plate while allowing the occurrence of differential settlement.

[0016] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present application are used to provide a further understanding of the present application, and the schematic implementation modes and descriptions of the present application are used to explain the present application. In the accompanying drawings:

[0018] Figure 1 It is a cross-sectional schematic diagram of the support structure within the settlement post-casting zone according to the preferred embodiment of the present application.

[0019] Figure 2 It is a schematic diagram of the second end plate of the supporting structure in the settlement post-casting zone according to the preferred embodiment of the present application.

[0020] Figure 3 It is a schematic diagram of the first end plate of the supporting structure in the settlement post-casting zone according to the preferred embodiment of the present application.

[0021] Figure 4 It is a schematic diagram of the first fixing part (second fixing part) of the support structure in the settlement post-casting zone according to the preferred embodiment of the present application.

[0022] Figure 5 It is a schematic diagram of the fixed connection part between the first fixing part (second fixing part) of the supporting structure and the structural bottom plate in the settlement post-casting zone according to the preferred embodiment of the present application.

[0023] Explanation of numbers in the accompanying drawings: 1-first structural base plate; 2-second structural base plate; 3-first fixing part; 4-second fixing part; 5-support member; 6-first end plate; 7-second end plate; 8-circular hole; 9-long hole; 10-rebar layer; 11-structural base plate cushion layer; 12-waterproof layer; 13-fixing nut; 14-first anchor bolt fixing part; 15-leveling nut; 16-second anchor bolt fixing part; 17-bolt rod. DETAILED DESCRIPTION

[0024] The technical solution of the present application will be described in detail below with reference to the accompanying drawings and in combination with the implementation modes.

[0025] like Figure 1 As shown, according to the first aspect of the present application, a supporting structure in a settlement post-casting strip is proposed, and the supporting structure in the settlement post-casting strip is arranged between a first structural bottom plate 1 and a second structural bottom plate 2, and the supporting structure in the settlement post-casting strip includes: a first fixing part 3: horizontally fixed on the first structural bottom plate 1; a second fixing part 4: horizontally fixed on the second structural bottom plate 2; and a supporting part: arranged between the first structural bottom plate 1 and the second structural bottom plate 2, and detachably connected to the first fixing part 3 and the second fixing part 4, wherein the positional relationship between the supporting part and the second fixing part 4 is adjustable.

[0026] The first structural bottom plate 1 is the structural bottom plate of the main building, and the second structural bottom plate 2 is the structural bottom plate of the basement or the podium. The support portion is fixed to the first structural bottom plate 1 by the first fixing portion 3, so that the relative position of the support portion and the first structural bottom plate 1 remains unchanged. Therefore, when the main building side sinks relative to the podium or the basement, the support portion sinks together with the first structural bottom plate 1, thereby providing lateral support to the structural bottom plate at the same time, and can also meet the problem of differential settlement between the main building and the podium or the basement of the high-rise building.

[0027] The structures of the first fixing part 3 and the second fixing part 4 are as follows: Figure 4-Figure 5 As shown, the first fixing part 3 and the second fixing part 4 can be in appropriate forms, preferably anchor bolts. The use of anchor bolts can simplify the construction process, reduce the demand for on-site processing, and improve construction efficiency.

[0028] In order to better fix the support part, the anchor bolt may include a bolt rod 17, and the anchor bolt fixing part is arranged at both ends of the bolt rod. The first anchor bolt fixing part 14 is used to connect with the first end plate 6 or the second end plate 7. The second anchor bolt fixing part 16 is arranged in the concrete structure in the structural bottom plate to provide structural stability and bearing capacity. The second anchor bolt fixing part 16 can be in an appropriate form, such as a cone, preferably an anchor plate with a transverse structure. The fixed connection between the second anchor bolt fixing part 16 and the bolt rod 17 is preferably welding. In the first anchor bolt fixing part 14, the first end plate 6 and the second end plate 7 are arranged between the first anchor bolt fixing part 14 and the structural bottom plate. The connection between the first end plate 6, the second end plate 7 and the anchor bolt rod 17 can be in an appropriate form, such as welding, preferably threaded matching. A fixing nut 13 and a leveling nut 15 are respectively arranged on the structural bottom plate side and the first anchor bolt fixing part 14 side, which can fix the first end plate 6 and the second end plate 7, and the distance between the first end plate 6 and the second end plate 7 and the structural bottom plate can be adjusted according to actual conditions.

[0029] In order to provide lateral support for the structural floor and to meet the differential settlement problem between the main building and the podium or basement of the high-rise building, specifically, the support portion is adjustable relative to the second fixing portion 4 in the longitudinal direction of the second structural floor 2. Therefore, when the main building of the high-rise building settles relative to the podium or basement, the first structural floor 1 of the main building drives the support portion to move downward in the longitudinal direction, thereby providing a certain space for the settlement of the main building and ensuring the lateral support function of the support portion.

[0030] In order to provide support between the first structural bottom plate 1 and the second structural bottom plate 2 at the same time, specifically, the support part may include a support member 5, which is horizontally arranged between the first structural bottom plate 1 and the second structural bottom plate 2. The support member 5 may be in a suitable form, such as a circular tube, a square tube and an I-shaped structure, preferably an H-shaped structure, which has a deep groove and a large thickness and can withstand forces in two directions, so that the horizontal arrangement of the support member can effectively provide continuous horizontal stiffness to the structural bottom plate, thereby improving the stability and safety of the building structure.

[0031] In order to horizontally arrange the support member 5 between the first structural bottom plate 1 and the second structural bottom plate 2, specifically, the support portion may further include a first end plate 6 and a second end plate 7, which are respectively fixedly arranged at the two ends of the support member 5 and are perpendicular to the support member 5. The first end plate 6 and the second end plate 7 are respectively parallel to the vertical directions of the first structural bottom plate and the second structural bottom plate to better horizontally fix the support member 5. The first end plate 6 and the second end plate 7 may be fixedly connected to the support member 5 in an appropriate manner, such as welding. The welding method may effectively prevent the structure between the support member 5 and the first end plate 6 and the second end plate 7 from loosening, causing the support member 5 to be displaced, and resulting in the support member being unable to provide horizontal support for the structural bottom plates on both sides.

[0032] like Figure 2 and Figure 3 As shown, in order to connect the support part with the structural bottom plate, specifically, the first end plate 6 and the second end plate 7 may be provided with reserved holes. The provision of the reserved holes can facilitate the connection with the fixing part. The reserved hole on the first end plate 6 is a circular hole 9, which is used for detachable connection with the first fixing part 3. The provision of the circular hole 9 can avoid the position change between the first end plate 6 and the first fixing part 3, which causes the tilt of the support member 5; the reserved hole on the second end plate 7 may be an elongated hole 8, which is used for detachable connection with the second fixing part 4. The elongated hole 8 extends in the longitudinal direction, and the second fixing part 4 can move in the longitudinal direction of the elongated hole 8. The circular hole 9 provided on the first end plate 6 is fixed to the first structural bottom plate 1 through the first fixing part 3, and then the support member 5 is fixed to the first structural bottom plate 1; the elongated hole 8 provided on the second end plate 7 is fixed to the second structural bottom plate 2 through the second fixing part 4, and the provision of the elongated hole 8 can allow the support member 5 to move in the longitudinal direction of the second fixing part 4. The settlement is calculated by using the structural model of the main building and the podium or basement of the high-rise building, and the settlement difference on both sides of the cast-in-place strip after the settlement is estimated to determine the length of the elongated hole 8.

[0033] In order to provide a strong support force and avoid the deformation or damage of the supporting structure in the later stage, which may cause the horizontal support of the structural bottom plate to weaken or disappear, the support part is made of high-strength material. The material of the support part can be steel, which has the characteristics of high strength and light weight, high strength and stability, and good compressive resistance. The use of steel support can better ensure the integrity of the structure, thereby continuously providing horizontal support force for the structural bottom plate and ensuring the stability and safety of the upper building.

[0034] A construction method of a support structure in a post-casting zone of settlement proposed in this application is:

[0035] (1) During the construction of the structural base plate, a settlement post-casting strip is reserved and anchor bolts are embedded in the concrete on both sides of the settlement post-casting strip;

[0036] (2) Welding the H-shaped steel to the first end plate 6 and the second end plate 7 in a factory or on site;

[0037] (3) After the slow-setting soil strength of the structural bottom plate reaches the design requirements, install the H-shaped steel and fix it in the post-settlement cast-in-place strip with anchor bolts;

[0038] (4) Level the H-shaped steel so that it is parallel to the structural base plate and tighten the fixing nut 13;

[0039] (5) The gap between the end plate and the structural bottom plate concrete is grouting treated. The grouting material can be fine stone concrete or CGM grouting material. The strength grade of the grouting material used is higher than that of concrete.

[0040] The support part of the support structure in the settlement post-cast zone proposed in the present application is arranged between the structural bottom plate of the main building and the podium or basement, which transfers the horizontal load to the structural bottom plate of the basement. In addition, the position relationship between the support part and the second fixed part arranged on the second structural bottom plate is adjustable, which provides settlement space for the differential settlement of the main building and the podium or basement of the high-rise building. Therefore, the support structure proposed in the present application can provide horizontal support to the structural bottom plate while allowing the occurrence of differential settlement.

[0041] According to the second aspect of the present application, a structure of a structural base plate is proposed, and the structure of the structural base plate has the above-mentioned support structure in the post-casting zone. The top and bottom of the above-mentioned structural base plate are provided with mutually perpendicular steel bar layers 10, and a waterproof layer 12 and a structural base plate cushion layer 11 are provided in sequence below the steel bar layer 10 at the bottom of the structural base plate. The structural base plate cushion layer 11 is conducive to the binding of the upper steel bar layer 10 and can also play a role in protecting the structural base plate. The above-mentioned waterproof layer 12 can be made of appropriate materials. The waterproof layer 12 is provided at the bottom of the structural base plate to effectively prevent the steel bar layer 10 from being corroded, which affects the load-bearing capacity and durability of the structural base plate.

[0042] The preferred embodiments of the present application are described in detail above; however, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, a variety of simple modifications can be made to the technical solution of the present application, and these simple modifications all fall within the protection scope of the present application.

[0043] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not further describe various possible combinations.

[0044] In addition, the various implementation modes of the present application may be arbitrarily combined, and as long as they do not violate the concept of the present application, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A supporting structure in a post-casting zone, wherein the supporting structure in the post-casting zone is arranged between a first structural bottom plate (1) and a second structural bottom plate (2), and is characterized in that: The supporting structure in the post-settlement cast-in-place belt includes: A first fixing portion (3) is horizontally fixedly disposed on the first structural bottom plate (1); A second fixing portion (4); horizontally fixedly disposed on the second structural bottom plate (2); and Support part: arranged between the first structural bottom plate (1) and the second structural bottom plate (2), and detachably connected to the first fixing part (3) and the second fixing part (4), wherein the positional relationship between the support part and the second fixing part (4) is adjustable.

2. The supporting structure in the post-casting zone of settlement according to claim 1 is characterized in that: The supporting portion is adjustable relative to the second fixing portion (4) in the longitudinal direction of the second structural base plate (2).

3. The supporting structure in the post-cast zone of settlement according to claim 1 is characterized in that: The support portion comprises a support member (5) which is horizontally arranged between the first structural bottom plate (1) and the second structural bottom plate (2).

4. The supporting structure in the post-cast zone of settlement according to claim 3 is characterized in that: The support portion further comprises a first end plate (6) and a second end plate (7), which are respectively fixedly arranged at two ends of the support member (5) and are perpendicular to the support member (5).

5. The supporting structure in the post-cast zone of settlement according to claim 4 is characterized in that: The first end plate (6) and the second end plate (7) are provided with reserved holes.

6. The supporting structure in the post-cast zone of settlement according to claim 5, characterized in that: The reserved hole on the second end plate (7) is an elongated hole (8) for detachably connecting with the second fixing portion (4), and the reserved hole on the first end plate (6) is a circular hole (9) for detachably connecting with the first fixing portion (3).

7. The supporting structure in the post-cast zone of settlement according to claim 6, characterized in that: The elongated hole (8) extends in the longitudinal direction; the second fixing portion (4) is movable in the longitudinal direction of the elongated hole (8).

8. The supporting structure in the post-cast zone of settlement according to claim 1, characterized in that: The supporting part is made of high-strength material.

9. The supporting structure in the post-cast zone of settlement according to claim 1, characterized in that: The first structural base plate (1) is the structural base plate of the main building of a high-rise building, and the second structural base plate (2) is the structural base plate of a basement or a podium.

10. A structure of a structural base plate, characterized in that: The structure of the structural base plate has the support structure in the settlement post-casting zone as described in any one of claims 1-9.

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