CN-224228116-U - Split type ellipsoidal concrete cushion block

CN224228116UCN 224228116 UCN224228116 UCN 224228116UCN-224228116-U

Abstract

The utility model relates to the technical field of reinforcement cage construction, and particularly discloses a split ellipsoidal concrete cushion block. The ellipsoidal body comprises two concrete split bodies which are oppositely arranged, contact surfaces are formed at the contact positions of the two concrete split bodies, an axial interlocking part is arranged on the contact surfaces, the axial interlocking part comprises a dovetail formed on one concrete split contact surface and a guide groove correspondingly formed on the other concrete split contact surface, and the dovetail is inserted into the guide groove along the short axis direction of the ellipsoidal body, so that the two concrete split bodies are combined into the ellipsoidal body. The ellipsoidal shape can uniformly disperse load, reduce local stress concentration risk, and is less prone to damage compared with the traditional rectangular or cylindrical cushion block.

Inventors

Yao Jimeng
CHENG LIANG
ZHENG HAIMING
WANG XINHUI
ZHU KAIJUN
ZHAI JINYAO
XIAO JUNYA
JIANG SHIHAI
ZHANG RUI
CHENG XIANG

Assignees

中铁十局集团第四工程有限公司
中铁十局集团有限公司

Dates

Publication Date: 20260512
Application Date: 20250430

Claims (7)

1. The split type ellipsoidal concrete cushion block is characterized by comprising an ellipsoidal body (100), wherein a first through hole (210) for a stirrup (120) to pass through is formed in the ellipsoidal body (100) along the long axis direction, a second through hole (220) for the stirrup (120) to pass through is formed in the ellipsoidal body (100) along the short axis direction, the ellipsoidal body (100) comprises two concrete split bodies (230) which are oppositely arranged, a contact surface (310) is formed at the contact position of the two concrete split bodies (230), an axial interlocking part (320) is arranged on the contact surface (310), the axial interlocking part (320) comprises a dovetail (330) formed on the contact surface (310) of one concrete split body (230), and a guide groove (340) correspondingly formed on the contact surface (310) of the other concrete split body (230), and the dovetail (330) is inserted into the guide groove (340) along the short axis direction of the ellipsoidal body (100) so that the two concrete split bodies (230) are combined into the ellipsoidal body (100).
2. The split ellipsoidal concrete cushion according to claim 1, wherein the contact surface (310) is further provided with a longitudinal limiting portion (350), the longitudinal limiting portion (350) comprises a first boss (351) protruding from the contact surface (310) of one concrete split (230) along the direction of the guide groove (340), a second boss (352) matched with the first boss (351) is arranged corresponding to the contact surface (310) of the other concrete split (230), and when the dovetail (330) and the guide groove (340) are in joggle joint, the first boss (351) and the second boss (352) are contacted to form a limiting fit.
3. The split ellipsoidal concrete cushion according to claim 1, wherein the stirrups (120) pass through the first through hole (210) or the second through hole (220) to form different mounting states corresponding to the thickness of the protective layer (130).
4. The split ellipsoidal concrete cushion according to claim 3, wherein the first through hole (210) forms a first installation state when assembled with the stirrup (120), and the length of the minor axis of the ellipsoidal body (100) is equal to the design thickness of the protective layer (130) of the reinforcement cage (140), and the ellipsoidal body (100) can rotate circumferentially about the axis of the stirrup (120).
5. The split ellipsoidal concrete cushion according to claim 3, wherein the second through hole (220) forms a second installation state when assembled with the stirrup (120), the ellipsoidal body (100) has a major axis length greater than the design thickness of the protective layer (130), and the ellipsoidal body (100) has a minor axis length less than the design thickness of the protective layer (130), and the ellipsoidal body (100) rotates within a certain angular range.
6. The split ellipsoidal concrete cushion according to claim 1, wherein the ellipsoidal bodies (100) are uniformly distributed along the circumferential direction of the reinforcement cage (140), and each ellipsoidal body (100) is sleeved on the outer surface of the stirrup (120) through a first through hole (210) or a second through hole (220).
7. The split ellipsoidal concrete cushion according to claim 1, wherein the ellipsoidal body (100) is made of C60 concrete.

Description

Split type ellipsoidal concrete cushion block Technical Field The utility model relates to the technical field of reinforcement cage construction, in particular to a split ellipsoidal concrete cushion block. Background The reinforcement cage protective layer concrete cushion plays a vital role in building construction, is generally fixed on stirrups of the reinforcement cage, and can ensure accurate positioning of the reinforcement cage and improve the stability and the anti-seismic performance of the structure. The split type concrete cushion of tradition is shape such as cylinder mostly, utilizes the inserted bar to peg graft, and the rethread connecting piece is fixed split type concrete cushion, uses comparatively complicacy, and the junction only has the inserted bar atress, and intensity is lower, and its structural dimension is mostly fixed, and is relatively poor to different thickness's steel reinforcement cage protective layer suitability. Disclosure of utility model The utility model provides a split ellipsoidal concrete cushion block which can overcome certain or certain defects in the prior art. The split ellipsoidal concrete cushion block comprises an ellipsoidal body, wherein a first through hole for a stirrup to pass through is formed in the ellipsoidal body along the long axis direction, a second through hole for the stirrup to pass through is formed in the ellipsoidal body along the short axis direction, the ellipsoidal body comprises two concrete split bodies which are oppositely arranged, a contact surface is formed at the contact position of the two concrete split bodies, an axial interlocking part is arranged on the contact surface, the axial interlocking part comprises a dovetail tenon formed on the contact surface of one concrete split body, and a guide groove correspondingly formed on the contact surface of the other concrete split body, and the dovetail tenon is inserted in the guide groove along the short axis direction of the ellipsoidal body, so that the two concrete split bodies are combined into the ellipsoidal body. The split type structure allows the stirrups to be directly assembled after being in place without disassembling or adjusting bound steel bars, greatly simplifies construction flow, is particularly suitable for complex reinforcement cage scenes, is provided with different installation modes corresponding to the first through hole and the second through hole, and is wider in application range, and different protection layer thicknesses corresponding to the arrangement mode. Preferably, the contact surface is further provided with a longitudinal limiting part, the longitudinal limiting part comprises a first boss protruding in the direction of the guide groove on the contact surface of one concrete split, a second boss matched with the first boss is arranged on the contact surface of the other concrete split, and when the dovetail joint and the guide groove are in joggle joint, the first boss and the second boss are in contact to form limiting fit. According to the utility model, the first boss is contacted with the second boss to form a limit fit to provide a clear embedded path, so that a constructor is assisted in quick installation, and only the dovetail is required to be inserted into the guide groove along the short axis direction of the ellipsoidal main body, so that the condition of excessive insertion can not occur, and reworking caused by excessive insertion can be avoided. Preferably, the stirrup passes through the first through hole or the second through hole, and different installation states are formed corresponding to the thickness of the protective layer. According to the utility model, the stirrups penetrate through the first through holes or the second through holes to correspondingly adapt to different mounting modes, and correspondingly adapt to different protective layer thicknesses, so that the application range is wider. Preferably, when the first through hole is assembled with the stirrup, a first mounting state is formed, the short axis length of the ellipsoidal body is equal to the design thickness of the reinforcement cage protective layer, and the ellipsoidal body can circumferentially rotate around the axis of the stirrup. The ellipsoidal body can freely rotate to prevent the reinforcement cage from being blocked in the lowering process, is convenient for construction, and meanwhile, the split type structure allows the reinforcement cage to be directly assembled after the stirrup is in place without disassembling or adjusting bound reinforcement, thereby greatly simplifying the construction process and being particularly suitable for complex reinforcement cage scenes. Preferably, when the second through hole is assembled with the stirrup, a second mounting state is formed, the length of the long axis of the ellipsoidal body is larger than the design thickness of the protective layer, the length of the short axis of the ellipsoidal body i