1. Structure: made in inner rubber layer, carbon fibre reinforcement layer, mid rubber layer, steel line reinforcement layer (steel catenarian reinforcement layer) and carbon fibre outer rubber layer. 3. 结构：由内胶层、碳纤维增强层、中胶层、钢丝增强层（钢链线增强层），碳纤维外胶层组成。3、产品分为钢丝增强型、钢链线增强型。
2. The strength of beam is affected by percentage of flexural reinforcement and the compound proportion and fashion of reinforcement materials and the number of reinforcement materials; 纵筋配筋率、加固材料混杂比例及混杂方式、加固材料用量均对受弯承载力有一定的影响；
3. Structure: made in inner rubber layer, carbon fibre reinforcement layer, mid rubber layer, steel line reinforcement layer (steel catenarian reinforcement layer) and carbon fibre outer rubber layer. 3. 结构：由内胶层、碳纤维增强层、中胶层、钢丝增强层（钢链线增强层），碳纤维外胶层组成。3、产品分为钢丝增强型、钢链线增强型。
4. The strength of beam is affected by percentage of flexural reinforcement and the compound proportion and fashion of reinforcement materials and the number of reinforcement materials; 纵筋配筋率、加固材料混杂比例及混杂方式、加固材料用量均对受弯承载力有一定的影响；
5. Mechamical calculation method for jacket vessel with spiral plate, spiral plate setting and strength check were discussed, it shows that spiral plate can be used as stiffening ring. 介绍带螺旋导流板的夹套容器强度计算方法、螺旋导流板的设置及强度校核等，螺旋导流板可起到加强圈的作用。
