为解决沿海地区河砂资源短缺及钢筋锈蚀问题，本文研究了预应力玻璃纤维增强聚合物（GFRP）筋和玻璃纤维-钢复合（GSFCB）筋与海水海砂混凝土（SWSSC）的粘结性能。通过中心拔出试验，系统分析了预应力水平、筋材直径、锚固长度、筋材类型及混凝土类型对粘结强度、粘结-滑移曲线及破坏模式的影响，并建立了粘结应力-滑移本构模型。结果表明：GFRP筋试件多发生拔出破坏，GSFCB筋试件则表现为筋断或混凝土劈裂破坏。预应力水平显著影响粘结强度，0.3倍极限强度时粘结强度降低，0.6倍时略有提高。粘结强度随锚固长度增加而降低，随筋直径增大而减小。海水海砂替代普通混凝土显著提高了粘结强度。基于试验结果建立了分段式粘结-滑移本构模型，可为预应力FRP筋SWSSC结构设计提供理论依据。

To address the shortage of river sand and the corrosion of steel reinforcement in coastal regions, this study investigates the bond performance between prestressed Glass Fiber Reinforced Polymer (GFRP) bars and Glass Fiber-Steel Composite (GSFCB) bars with Seawater Sea-Sand Concrete (SWSSC). Central pull-out tests were conducted to systematically evaluate the effects of prestress level, bar diameter, anchorage length, and bar type on bond strength, bond–slip behavior, and failure modes. A bond stress–slip constitutive model was developed based on the experimental results. The results indicate that the GFRP bar specimens predominantly exhibited pull-out failure, whereas the GSFCB bar specimens showed either bar rupture or concrete splitting failure. The bond strength decreased significantly under a prestress level of 0.3 times the ultimate tensile strength, but increased slightly at the 0.6 level. Increasing the anchorage length led to a reduction in bond strength, and larger bar diameters were also associated with decreased bond performance. The use of seawater and sea-sand significantly enhanced the bond strength compared to conventional concrete. A segmented bond–slip constitutive model was established, providing a theoretical basis for the design of prestressed FRP-reinforced SWSSC structures.