CN212270984U

CN212270984U - Raft foundation hinge structure

Info

Publication number: CN212270984U
Application number: CN202021880142.9U
Authority: CN
Inventors: 王卫东; 吴江斌; 包联进; 周建龙
Original assignee: East China Architectural Design and Research Institute Co Ltd
Current assignee: East China Architectural Design and Research Institute Co Ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-01-01
Anticipated expiration: 2030-09-02

Abstract

The utility model belongs to a raft foundation hinge structure in building foundation engineering field, technical scheme is: the main building raft and the undaria raft are independent respectively, and the main building raft extends out of a section below the undaria raft to form a support; the main building raft longitudinal ribs and the undaria raft longitudinal ribs are disconnected at the junction of the main building raft and the undaria raft; vertical connecting ribs are arranged in the length range of the support, the upper parts of the vertical connecting ribs are inserted into the apron raft, and the lower parts of the vertical connecting ribs are inserted into the main building raft; the juncture of the main building raft and the apron raft is provided with a section of L-shaped construction joint, the horizontal section of the L-shaped construction joint is provided with a water-swelling rubber waterstop, and the vertical section of the L-shaped construction joint is provided with a waterstop steel plate. This structure principle is simple, construction convenience, practicality are strong, can realize vertical and horizontal biography power between main building raft and the undaria raft to can adapt to the junction that the difference subsides and bring and rotate, warp and waterproof.

Description

Raft foundation hinge structure

Technical Field

The utility model belongs to building foundation engineering field especially relates to an ability by wide application in main, skirt building foundation's raft board connection structure.

Background

The raft foundation is widely applied to building foundation engineering due to the advantages of high bearing capacity, good integrity and the like. In design, the thickness of the raft foundation is determined by the die cutting resistance and the shear strength. To the high-low floor structure that has main building and undaria, different load and deformation demand often can cause the uneven phenomenon of atress, still can produce great difference in the raft foundation of main, undaria juncture and subside. In order to reduce the differential settlement between high and low floors, a post-cast strip for controlling settlement is conventionally arranged between a tower and a skirt house. The stressed reinforcing steel bars in the raft are generally continuous in the post-cast strip. During construction, buildings on two sides of the post-cast strip can freely settle, and the post-cast strip is sealed by micro-expansive concrete after the tower structure is capped and the settlement is basically stable. However, the protection of the post-cast strip during construction of the structure is a time-consuming and laborious task. In addition, due to the existence of the post-cast strip, a replacement support is required to be arranged to transmit horizontal force; the post-cast strip can also directly influence the installation of nearby secondary structures and electromechanical equipment, bring inconvenience to site operation and influence the construction period.

Therefore, on the basis of the existing method, a raft plate base hinge structure which is integrally cast during construction, allows the structure to be settled and deformed and fully considers the underground waterproof function is developed, and the raft plate base hinge structure has very strong engineering application value.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome above-mentioned technical problem, provide a raft foundation hinge structure, this structure principle is simple, construction convenience, practicality are strong, can realize vertical and horizontal biography power between main building raft and the skirt building raft to can adapt to the difference and subside the junction rotation that brings, warp and waterproof.

The technical scheme of the utility model is that: a raft foundation hinge structure comprises a main building raft and a skirt building raft which are oppositely arranged, wherein the main building raft and the skirt building raft are respectively independent, and the main building raft extends out of a section below the skirt building raft to form a support; the main building raft longitudinal ribs and the undaria raft longitudinal ribs are disconnected at the junction of the main building raft and the undaria raft; vertical connecting ribs are arranged in the length range of the support, the upper parts of the vertical connecting ribs are inserted into the apron raft, and the lower parts of the vertical connecting ribs are inserted into the main building raft; the juncture of main building raft and undaria raft sets up one section L shape construction joint, sets up water-swelling rubber waterstop at the horizontal segment of L shape construction joint, sets up the stagnant water steel sheet in the vertical section of L shape construction joint, and the one end of stagnant water steel sheet inserts the undaria raft, and the other end inserts main building raft.

Based on the technical characteristics: in the main building raft, the upper part and the lower part of the water stop steel plate are respectively provided with a main building raft structure rib; in the apron raft, the upper and lower parts of the water stop steel plate are respectively provided with apron raft structure ribs; the main building raft structure rib and the undaria raft structure rib are composed of an upper horizontal section, a lower horizontal section and a vertical section, and the vertical section is connected with the end part of the upper horizontal section and the end part of the lower horizontal section.

Based on the technical characteristics: the left side and the right side of the water stop steel plate are respectively provided with a main building raft reinforcing rib and a skirt building raft reinforcing rib; the main building raft reinforcing ribs and the apron raft reinforcing ribs are semi-frame-shaped.

Based on the technical characteristics: the L-shaped construction joint is of a plain concrete structure.

Based on the technical characteristics: the concave surface of the water stop steel plate is the upstream surface.

The utility model discloses a main, articulated connection structure of undaria raft foundation through break off the longitudinal bar at main, undaria juncture to set up L shape construction joint, with the function that realizes not transmitting the moment of flexure, adapt to because the difference subsides the rotation that arouses. Meanwhile, two waterproof measures of a water-swelling rubber waterstop and a water-stopping steel plate are arranged in a construction joint, so that the water seepage phenomenon caused by concrete cracking due to differential settlement is effectively prevented. This structure is at construction period monolithic concreting, need not set up the post-cast strip, is favorable to the site operation, has security and economic nature concurrently.

The utility model has the advantages that: compared with the prior art, the utility model discloses can guarantee that the raft of seam crossing can rotate, realize the effect of articulated connection between the raft, can effectively solve the settlement difference in construction later stage. The utility model discloses the principle is simple, construction convenience, the atress condition is reasonable, but wide application in high low-rise structure's secret raft foundation.

Drawings

Fig. 1 is a schematic structural view of the raft foundation hinge structure of the present invention.

The reference numbers in the figures denote: a main building raft plate 1; a raft plate 2 of the undaria pinnatifida; longitudinal ribs 3 of the raft of the main building; a raft longitudinal bar 4 of the undaria pinnatifida; a vertical connecting rib 5; an L-shaped construction joint 6; a water-swelling rubber waterstop 7; a water stop steel plate 8; main building raft plate construction ribs 9; a raft construction rib 10 of the undaria pinnatifida; the raft reinforcing ribs 11 of the main building; the raft reinforcing ribs 12 of the undaria pinnatifida.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings. These embodiments are provided only for illustrating the present invention and are not intended to limit the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1, the main building raft 1 and the undaria raft 2 are independent, and the longitudinal ribs 3 and the longitudinal ribs 4 of the main building raft are disconnected at the junction of the two rafts, so that the effect of not transmitting bending moment is achieved. Main building raft 1 stretches out a section length and forms the support under undaria raft 2, through this support transmission horizontal pressure and vertical pressure. The length of the support can be calculated through the horizontal pressure and the vertical pressure. The vertical connecting ribs 5 are arranged within the length range of the support to transmit horizontal shearing force and vertical pulling force. The number and the spacing of the vertical connecting ribs 5 can be calculated through the horizontal shearing force and the vertical pulling force; the upper parts of the vertical connecting ribs 5 are inserted into the apron raft 2, and the lower parts are inserted into the main building raft 1. The juncture of main building raft 1 and undaria raft 2 sets up one section L shape construction joint 6, sets up water-swelling rubber waterstop 7 at the horizontal segment of L shape construction joint 6, sets up water-swelling rubber waterstop 7 in the construction joint at the bottom of undaria raft 2 promptly. The vertical section of L shape construction joint 6 sets up stagnant water steel sheet 8, sets up stagnant water steel sheet 8 promptly on the side of the skirt raft tip, and stagnant water steel sheet 8's concave surface is the upstream face. In order to limit the vertical movement of the water stop steel plate 8, a main building raft structure rib 9 and a skirt building raft structure rib 10 are respectively arranged on the upper side and the lower side of the water stop steel plate. The main building raft structure rib 9 and the undaria raft structure rib 10 are composed of an upper horizontal section, a lower horizontal section and a vertical section, and the vertical section is connected with the end part of the upper horizontal section and the end part of the lower horizontal section. In order to strengthen the vertical force transmission at the water stop steel plate 8, the left side and the right side of the water stop steel plate 8 are respectively provided with a main building raft reinforcing rib 11 and a skirt building raft reinforcing rib 12. The main building raft reinforcing ribs 11 and the undaria raft reinforcing ribs 12 are semi-frame-shaped. The structures are cast with concrete after the lap joint is finished, and a raft plate hinged structure is formed.

In the above technical scheme, the L-shaped construction joint 6 is a plain concrete structure.

In order to satisfy different use functions, the reinforcing steel bars are arranged in the raft plate, which belongs to the prior art, the utility model discloses in can implement according to current technique. The utility model discloses used L shape construction joint 6, met water inflation rubber waterstop 7 and stagnant water steel sheet 8, can satisfy rotation, deformation and the waterproof requirement of raft board junction. Main building raft structure ribs 9, undaria raft structure ribs 10 and main building raft reinforcing ribs 11; the skirt raft reinforcing ribs 12 can be specifically arranged according to the standard requirements of the existing reinforced concrete.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a raft foundation hinge structure, includes main building raft (1) and undaria raft (2) of relative arrangement, its characterized in that: the main building raft (1) and the undaria raft (2) are independent respectively, and the main building raft (1) extends out of the undaria raft (2) for a section to form a support; the main building raft longitudinal ribs (3) and the undaria raft longitudinal ribs (4) are disconnected at the junction of the main building raft (1) and the undaria raft (2); vertical connecting ribs (5) are arranged within the length range of the support, the upper parts of the vertical connecting ribs (5) are inserted into the apron raft (2), and the lower parts of the vertical connecting ribs are inserted into the main building raft (1); main building raft (1) with undaria raft (2) juncture sets up one section L shape construction joint (6) the horizontal segment of L shape construction joint (6) sets up and meets water inflation rubber waterstop (7) the vertical section of L shape construction joint (6) sets up stagnant water steel sheet (8), the one end of stagnant water steel sheet (8) is inserted undaria raft (2), the other end inserts main building raft (1).

2. A raft foundation articulated construction according to claim 1, wherein: in the main building raft (1), the upper part and the lower part of the water stop steel plate (8) are respectively provided with a main building raft structure rib (9); in the apron raft (2), the upper part and the lower part of the water stop steel plate (8) are respectively provided with an apron raft structure rib (10); the main building raft structure rib (9) and the apron building raft structure rib (10) are composed of an upper horizontal section, a lower horizontal section and a vertical section, and the vertical section is connected with the end part of the upper horizontal section and the end part of the lower horizontal section.

3. A raft foundation articulated construction according to claim 1 or 2, wherein: the left side and the right side of the water stop steel plate (8) are respectively provided with a main building raft reinforcing rib (11) and a skirt building raft reinforcing rib (12); the main building raft reinforcing ribs (11) and the skirt building raft reinforcing ribs (12) are semi-frame-shaped.

4. A raft foundation articulated construction according to claim 1, wherein: the L-shaped construction joint (6) is of a plain concrete structure.

5. A raft foundation articulated construction according to claim 1, wherein: the concave surface of the water stop steel plate (8) is the upstream surface.