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A platform for research: civil engineering, architecture and urbanism
Self-balancing large-span deep foundation pit prestressed beam system
The invention discloses a self-balancing large-span deep foundation pit prestressed beam system. The self-balancing large-span deep foundation pit prestressed beam system is arranged on a concrete beam on the inner wall of a foundation pit, a self-balancing prestressed beam supporting system comprises a plurality of web members fixed to the concrete beam, and the ends, away from the concrete beam, of the web members are movably connected to pull rods through pull rod connectors; the two ends of each pull rod are hinged to embedded parts embedded in the concrete beam correspondingly; the problem that a vertical bearing component must be arranged in a foundation pit in a conventional steel supporting system is solved; prestress is applied to the pull rods to react on the web members to balance the soil pressure outside the foundation pit; the large-span prestressed beam improves the excavation efficiency of earthwork in the foundation pit, reduces the material consumption of the supporting system, and saves the manufacturing cost; and the supporting system can be repeatedly used and has the advantages of being short in construction period, low in cost, good in safety performance, environmentally friendly, free of pollution and the like.
本发明公开了一种自平衡大跨度深基坑预应力梁系统，设于基坑内壁混凝土梁上，所述自平衡预应力梁支撑系统包括若干固定在混凝土梁上的腹杆，所述腹杆远离混凝土梁的一端通过拉杆接头与拉杆活动连接，所述拉杆的两端分别与预埋在混凝土梁内的预埋件铰接；其解决了常规钢支撑系统必须在基坑内设置竖向承载构件的问题；通过对拉杆施加预应力从而反作用于腹杆实现平衡基坑外土压力；大跨度预应力梁提高了基坑内土方开挖效率，降低了支撑系统材料使用量，节省造价。本支撑系统可重复使用，具有工期短、成本低、安全性能好、环保无污染等特点。
Self-balancing large-span deep foundation pit prestressed beam system
The invention discloses a self-balancing large-span deep foundation pit prestressed beam system. The self-balancing large-span deep foundation pit prestressed beam system is arranged on a concrete beam on the inner wall of a foundation pit, a self-balancing prestressed beam supporting system comprises a plurality of web members fixed to the concrete beam, and the ends, away from the concrete beam, of the web members are movably connected to pull rods through pull rod connectors; the two ends of each pull rod are hinged to embedded parts embedded in the concrete beam correspondingly; the problem that a vertical bearing component must be arranged in a foundation pit in a conventional steel supporting system is solved; prestress is applied to the pull rods to react on the web members to balance the soil pressure outside the foundation pit; the large-span prestressed beam improves the excavation efficiency of earthwork in the foundation pit, reduces the material consumption of the supporting system, and saves the manufacturing cost; and the supporting system can be repeatedly used and has the advantages of being short in construction period, low in cost, good in safety performance, environmentally friendly, free of pollution and the like.
本发明公开了一种自平衡大跨度深基坑预应力梁系统，设于基坑内壁混凝土梁上，所述自平衡预应力梁支撑系统包括若干固定在混凝土梁上的腹杆，所述腹杆远离混凝土梁的一端通过拉杆接头与拉杆活动连接，所述拉杆的两端分别与预埋在混凝土梁内的预埋件铰接；其解决了常规钢支撑系统必须在基坑内设置竖向承载构件的问题；通过对拉杆施加预应力从而反作用于腹杆实现平衡基坑外土压力；大跨度预应力梁提高了基坑内土方开挖效率，降低了支撑系统材料使用量，节省造价。本支撑系统可重复使用，具有工期短、成本低、安全性能好、环保无污染等特点。
Self-balancing large-span deep foundation pit prestressed beam system
一种自平衡大跨度深基坑预应力梁系统
ZHANG PENG (author) / CHEN WEIGANG (author) / LIU RONG (author)
2021-06-11
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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