多模式资源受限项目调度问题的双目标优化

以一座设有FPS支座的斜交桥为原型，基于SAP2000建立了动力分析模型，研究了当地震波三维输入时，不同竖向地震动对FPS支座及下部结构地震响应的影响，又考虑边界碰撞因素，研究碰撞对结构响应的影响。结果表明：竖向地震动对FPS支座水平剪力与位移有一定影响，对下部结构的轴力和扭矩的影响很大；在SAP2000中采用Plastic(Wen)单元能很好地估计FPS支座位移值，但低估了FPS支座剪力值；当考虑碰撞效应时，支座地震响应将急剧增大；碰撞是导致上部结构旋转的首要原因。

Bi objective Optimization for the Multi mode Resource constrained Project Scheduling Problem

A model of a skewed bridge with FPS bearing was built using SAP2000. Pounding was taken into consideration to study its effect to the structure. Effects of FPS bearing and substructure under various vertical earthquakes were studied. The result indicated that vertical earthquake changed horizontal shear force and displacement of FPS bearing and influenced axial force and torsion moment greatly; while Element Plastic(Wen) in SAP2000 simulated FPS bearing well, it underestimated shear force of bearing; earthquake response of FPS bearing increased rapidly with consideration of pounding effect; and pounding effect was the main reason why superstructure rotated.