预应力钢板环箍加固设计和施工

利用钢材的热胀冷缩原理,通过箍板降温回缩对加固柱混凝土产生预压应力,使核芯混凝土处于三向受压状态,从而有效提高混凝土强度和变形能力。用形状改变比能理论对混凝土三向受压进行受力分析,对预应力加固缀板进行详细设计,并进行施工、检测并从中得到的经验。

Designing and Construction of Prestressed Steel Hoop Reinforcement

Steels expand with heat and contract with cold.So hoops at low temperature contract and give stress to the column concrete.The core concrete is in a state of three dimension stress,thus effectively increases the concrete strength and deformability.By using the principle of energy of form-changed criterion,this paper analyzes the concrete stressed from three dimensions,designs,constructs and tests prestressed reinforced batten plates and get experience from thus.