1 . Convenient construction, short procurement cycle an […]
1 . Convenient construction, short procurement cycle and simple process;
2 . Overcome the shortcomings of the strength of the foundation ring, sudden changes in stiffness, and easy brittle failure;
3 . The prestressed structure is safer and more reliable, and the concrete is under pressure for a long time without cracking, which improves the structural durability;
4 . The direct tension method is adopted to avoid the brittle fracture of the anchor bolt under the combined tensile and torsional stress state, and the strength of the anchor bolt is improved.