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湖南大学结构实验室设备基础为 L 型推力墙台座,其尺寸为30×6.4×2.5m,推力墙出地面7m,宽6m,厚1.4m。墙身内竖向设有144根直径25mm、长9.8m 的Ⅳ级光圆两端轧丝的预应力钢筋(图1),采用无粘结预应力后张法施工。
The structural laboratory of Hunan University is based on a L-shaped thrust wall pedestal whose dimensions are 30×6.4×2.5m. The thrust wall is 7m out of the ground, 6m wide and 1.4m thick. There are 144 pre-stressed steel bars (Fig. 1) with 1.25 diameters and a length of 9.8m in both diameters and vertical lengths in the wall body (Fig. 1). The unbonded prestressed post-tensioning method is used for construction.