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A platform for research: civil engineering, architecture and urbanism
Horizontal and vertical drawing and vertical pressurization and torsion combined load loading system for pile foundation model test
The invention discloses a horizontal and vertical drawing and vertical pressurizing and torsion combined load loading system for a pile foundation model test. The horizontal and vertical drawing and vertical pressurizing and torsion combined load loading system mainly comprises a vertical loading device, a horizontal loading device and a torque loading device. The left end of the cross beam is hinged and fixed, the dead weight of the cross beam is balanced by adjusting the weight of a weight at the right end of the cross beam and suspending and pulling the cross beam, and two loading modes of vertical drawing and vertical pressurizing are realized; the pile top fixed pulley is deviated from the axis of the pile body by adjusting the position of the pile top fixed pulley so as to apply a vertical eccentric load. A horizontal load and a torque load are applied through the fixed pulleys capable of adjusting the horizontal direction and the height direction. Due to the fact that the pile top fixed pulley can freely roll in the cross beam, the problem that after the position of the pile top is changed when horizontal and vertical combined loads are applied, the vertical loads can only be vertically loaded, but the horizontal position cannot be changed, and additional constraint is caused to the pile top is solved. The test loading system can also apply a horizontal and torsional combined load, a vertical and torsional combined load and a horizontal, vertical and torsional combined load.
本发明公开了一种桩基模型试验水平、竖向拉拔和竖向加压、扭转组合荷载加载系统，主要包括竖向加载装置、水平加载装置、扭矩加载装置。横梁左端铰接固定，通过调节横梁的右端砝码重量，悬拉横梁来平衡横梁自重，实现竖向拉拔和竖向加压两种加载方式；通过调节桩顶定滑轮位置使其偏离桩身轴线，以施加竖向偏心荷载。通过可调整水平方向和高度方向的定滑轮施加水平荷载和扭矩荷载。因桩顶定滑轮可在横梁内自由滚动，解决了施加水平、竖向组合荷载时桩顶位置改变后，因竖向荷载往往只能竖向加载而不能改变水平位置造成对桩顶额外约束的问题。该试验加载系统也可以施加水平、扭转组合荷载，竖向、扭转组合荷载及水平、竖向、扭转组合荷载。
Horizontal and vertical drawing and vertical pressurization and torsion combined load loading system for pile foundation model test
The invention discloses a horizontal and vertical drawing and vertical pressurizing and torsion combined load loading system for a pile foundation model test. The horizontal and vertical drawing and vertical pressurizing and torsion combined load loading system mainly comprises a vertical loading device, a horizontal loading device and a torque loading device. The left end of the cross beam is hinged and fixed, the dead weight of the cross beam is balanced by adjusting the weight of a weight at the right end of the cross beam and suspending and pulling the cross beam, and two loading modes of vertical drawing and vertical pressurizing are realized; the pile top fixed pulley is deviated from the axis of the pile body by adjusting the position of the pile top fixed pulley so as to apply a vertical eccentric load. A horizontal load and a torque load are applied through the fixed pulleys capable of adjusting the horizontal direction and the height direction. Due to the fact that the pile top fixed pulley can freely roll in the cross beam, the problem that after the position of the pile top is changed when horizontal and vertical combined loads are applied, the vertical loads can only be vertically loaded, but the horizontal position cannot be changed, and additional constraint is caused to the pile top is solved. The test loading system can also apply a horizontal and torsional combined load, a vertical and torsional combined load and a horizontal, vertical and torsional combined load.
本发明公开了一种桩基模型试验水平、竖向拉拔和竖向加压、扭转组合荷载加载系统，主要包括竖向加载装置、水平加载装置、扭矩加载装置。横梁左端铰接固定，通过调节横梁的右端砝码重量，悬拉横梁来平衡横梁自重，实现竖向拉拔和竖向加压两种加载方式；通过调节桩顶定滑轮位置使其偏离桩身轴线，以施加竖向偏心荷载。通过可调整水平方向和高度方向的定滑轮施加水平荷载和扭矩荷载。因桩顶定滑轮可在横梁内自由滚动，解决了施加水平、竖向组合荷载时桩顶位置改变后，因竖向荷载往往只能竖向加载而不能改变水平位置造成对桩顶额外约束的问题。该试验加载系统也可以施加水平、扭转组合荷载，竖向、扭转组合荷载及水平、竖向、扭转组合荷载。
Horizontal and vertical drawing and vertical pressurization and torsion combined load loading system for pile foundation model test
一种桩基模型试验水平、竖向拉拔和竖向加压、扭转组合荷载加载系统
YANG XIAOFENG (author) / LUO YANG (author) / YU FENG (author) / YAO ZHAOMING (author) / HE ZHENWEI (author)
2024-02-09
Patent
Electronic Resource
Chinese
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