Multidirectional pseudo-static test device for upper structure and pile foundation composite force bearing body: Fid-Bau Portal

Multidirectional pseudo-static test device for upper structure and pile foundation composite force bearing body

ZHENG GANG / ZHAO JIHUI / ZHANG WENBIN / ZHOU HAIZUO

The invention discloses a multidirectional pseudo-static test device for an upper structure and pile foundation composite force bearing body. The multidirectional pseudo-static test device comprises a test model, a force application device and a static force direction adjusting device, wherein the test model is used for simulating the upper structure and pile foundation composite force bearing body, the force application device is used for loading acting force to the test model, and the static force direction adjusting device is used for adjusting the included angle between the reference base plane of the test model and the acting force direction of the force application device; the test model comprises a geotechnical box, a pile is arranged in the geotechnical box, a bearing platform is arranged on the pile, and an upper structure fixedly connected with the bearing platform is arranged on the bearing platform. The force application device comprises a horizontal actuator; the static force direction adjusting device comprises a horizontal rotary table; and the horizontal actuator applies horizontal force to the upper structure, and the force application device or the geotechnical box is arranged on the horizontal rotary table. The multidirectional pseudo-static test device can achieve multidirectional pseudo-static tests to better simulate the actual force bearing condition.

本发明公开了一种上部结构与桩基复合受力体多向拟静力试验装置，包括：用于模拟上部结构与桩基复合受力体的试验模型，用于向试验模型加载作用力的施力装置，用于调整试验模型的参考基面与施力装置的作用力方向间夹角的静力方向调节装置；试验模型包括土工箱，土工箱内设有桩，桩上设有承台，承台上设有与其固接的上部结构；施力装置包括水平作动器；静力方向调节装置包括水平转台；水平作动器施加水平方向力于上部结构，施力装置或土工箱设置在水平转台上。本发明可实现多向拟静力试验，来更好模拟实际受力情况。

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