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A platform for research: civil engineering, architecture and urbanism
Steel sleeve joint for connecting steel pipe inner support-retaining structure
The invention discloses a steel sleeve joint for connecting a steel pipe inner support-retaining structure. The joint consists of an embedded steel plate, mold bag concrete and a steel sleeve. One end of the joint structure is connected with a side wall of a foundation pit, and the other end of the joint structure is connected with the steel pipe inner support. The embedded steel plate is poured in a retaining structure diaphragm wall. The steel sleeve is composed of an upper half sleeve and a lower half sleeve, and a flange with a certain length extends out of the side face and is fixed and fastened through high-strength bolts. The cylindrical mold bag is placed in the steel sleeve. After concrete pouring work is completed, one end of a film bag is tightly attached to the embedded steel plate, and the other end of the film bag abuts against the steel pipe support. The fixing steel plate is used for bearing the steel pipe inner support, and the fixing steel wedge is arranged in the steel sleeve and used for limiting horizontal displacement of the inner support. The mold bag is a breathable and permeable material, water in concrete is discharged through extrusion, the water cement ratio is reduced, and the strength is improved. Compared with a common steel wedge type adjustable end, the eccentricity problem of the inner support can be remarkably solved, the bearing capacity of the inner support is improved, and the mold bag has a wide application prospect.
本发明公开了一种连接钢管内支撑‑围护结构的钢套筒节点，由预埋钢板、模袋混凝土、钢套筒组成，节点结构一端与基坑侧壁连接，另一端与钢管内支撑连接。预埋钢板浇筑于围护结构地连墙内。钢套筒由上半套筒和下半套筒组成，侧面伸出一定长度翼缘，通过高强螺栓固定扣紧。圆柱模袋放置于钢套筒内部，混凝土灌注工作完成后，使得膜袋一端紧贴预埋钢板，另一端与钢管支撑顶紧。固定钢板用来承载钢管内支撑，钢套筒内有固定钢楔，用于限制内支撑水平方向位移。本发明模袋是一种透气透水材料，混凝土中水分通过挤压排出，降低了水灰比，增大强度，相比常用的钢楔式活络端头，能够显著改善内支撑的偏心问题，提高内支撑承载力，具有广阔的应用前景。
Steel sleeve joint for connecting steel pipe inner support-retaining structure
The invention discloses a steel sleeve joint for connecting a steel pipe inner support-retaining structure. The joint consists of an embedded steel plate, mold bag concrete and a steel sleeve. One end of the joint structure is connected with a side wall of a foundation pit, and the other end of the joint structure is connected with the steel pipe inner support. The embedded steel plate is poured in a retaining structure diaphragm wall. The steel sleeve is composed of an upper half sleeve and a lower half sleeve, and a flange with a certain length extends out of the side face and is fixed and fastened through high-strength bolts. The cylindrical mold bag is placed in the steel sleeve. After concrete pouring work is completed, one end of a film bag is tightly attached to the embedded steel plate, and the other end of the film bag abuts against the steel pipe support. The fixing steel plate is used for bearing the steel pipe inner support, and the fixing steel wedge is arranged in the steel sleeve and used for limiting horizontal displacement of the inner support. The mold bag is a breathable and permeable material, water in concrete is discharged through extrusion, the water cement ratio is reduced, and the strength is improved. Compared with a common steel wedge type adjustable end, the eccentricity problem of the inner support can be remarkably solved, the bearing capacity of the inner support is improved, and the mold bag has a wide application prospect.
本发明公开了一种连接钢管内支撑‑围护结构的钢套筒节点，由预埋钢板、模袋混凝土、钢套筒组成，节点结构一端与基坑侧壁连接，另一端与钢管内支撑连接。预埋钢板浇筑于围护结构地连墙内。钢套筒由上半套筒和下半套筒组成，侧面伸出一定长度翼缘，通过高强螺栓固定扣紧。圆柱模袋放置于钢套筒内部，混凝土灌注工作完成后，使得膜袋一端紧贴预埋钢板，另一端与钢管支撑顶紧。固定钢板用来承载钢管内支撑，钢套筒内有固定钢楔，用于限制内支撑水平方向位移。本发明模袋是一种透气透水材料，混凝土中水分通过挤压排出，降低了水灰比，增大强度，相比常用的钢楔式活络端头，能够显著改善内支撑的偏心问题，提高内支撑承载力，具有广阔的应用前景。
Steel sleeve joint for connecting steel pipe inner support-retaining structure
一种连接钢管内支撑-围护结构的钢套筒节点
ZHANG MINGJU (author) / LIU WENJIE (author) / LI PENGFEI (author) / GUO CAIXIA (author)
2021-12-17
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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