摘要：斜拉桥是一种以拉索为主要承重结构的一种桥结构。因此连接拉索和索塔的锚固体系在整座斜拉桥中占据举足轻重的地位。在锚板式钢-混组合索塔锚固体系中，钢板和钢筋混凝土结构互相结合在一起共同受力。要使这两种结构在索塔锚固区域内能够很好地协同作用、正常工作，除了两种结构自身之间的接触产生的荷载传递之外，还需要设置剪力连接件——PBL剪力键。钢-钢筋混凝土结构是钢结构与混凝土结构这两种结构结合的新型结构，其受力特点与单一材料的结构相比要复杂得多。为了更深入了解锚板式钢-混组合索塔锚固体系的受力性能，以及混凝土强度等因素对其受力性能的影响度，本文将利用大型有限元分析软件ANSYS对该钢锚板式钢-混组合索塔锚固体系进行受力分析，并改变参数（混凝土强度、锚拉板厚度、隔板厚度、穿孔钢筋直径、穿孔钢筋数量）下分别分析钢锚板式钢-混组合索塔锚固体系当前的受力性能。70115

毕业论文关键词： 有限单元法；结构分析；索塔锚固结构体系

Steel anchor plate of steel-concrete composite analysis on anchorage behavior of system parameters

Abstract：Cable-stayed bridge is a kind of bridge witch cable as the main load-bearing structure of a bridge structure. Link cable and cable Tower anchorage system occupies a pivotal position in the whole cable-stayed bridge. Anchor plate in steel-concrete composite pylon anchorage system, steel and reinforced concrete structures combined with each other and force. To make this structure very well together in the anchorage area, normal work, in addition to contacts between the two structures outside the load transfer, you also need a structure can be interspersed among them, reduced by tangential friction transfer load and transform, shear transfer. This is the PBL shear connector. Steel-reinforced concrete structure is of steel and concrete structures the new structure of these two structures, their mechanical characteristics compared with the single structure is much more complex. To more in-depth understand anchor plate steel-mixed combination Tower anchorage system in the PBL cut force key of by force performance, to and on around of plate, and reinforced concrete structure of by force performance of effect, we will using large limited Yuan analysis software ANSYS on the steel anchor plate steel-mixed combination Tower anchorage system for by force analysis, and in change parameter (concrete strength, and anchor pulled board thickness, and clapboard thickness, and perforation steel diameter, and Perforated steel bar number), then analysis of steel anchor plate of steel-concrete composite pylon anchorage behavior of current.

Key Words： finite element method；construction analysis；cable-pylon anchorage zone

目  录

1  绪论 1

1.1 斜拉桥发展现状 1

1.2索塔锚固体系 1

1.2.1 发展早期的索塔锚固形式 2

1.2.2发展后期的索塔锚固形式 2

1.2.3目前主要的混凝土索塔锚固结构体系 2

1.3国内外研究现状与水平 3

1.4研究意义 4

1.5研究内容 4

2  建立有限元模型 5

2.1材料性能 5

2.1.1 材料性能参数取值 5

2.1.2材料本构关系 5

2.1.3单元选择