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所在平台: Udemy |
课程主页: https://www.udemy.com/course/using-lrfd-to-design-highway-bridge-superstructures-part-3/
课程评论：没有评论
**课程名称：** LRFD：公路桥梁上部结构设计（第三部分） **课程概述：** 本课程将简要介绍LRFD（基于荷载和其他因素的规范）在公路桥梁上部结构设计中的应用，并阐释其设计理念。课程将重点介绍上部结构设计所使用的设计卡车荷载和车道荷载。内容涵盖混凝土梁桥和钢桥。 本课程全面介绍了钢、混凝土公路桥梁上部结构的这两种材料的理论、方法和实际应用。其教学内容基于《AASHTO LRFD桥梁设计规范》第七版（2014年版）及其2015年的过渡性修订。课程中的设计实例和讲解旨在为桥梁工程师提供实施AASHTO LRFD桥梁设计规范的指导。 **课程结构（共八章）：** * **第一章：** LRFD简介，包括LRFD设计理念概述和各种LRFD极限状态的描述。 * **第二章：** 桥址特征和设计目标的相关信息，以及对加速桥梁建设（ABC）的简要概述。 * **第三章：** 荷载和荷载系数，包括常见桥梁荷载的设计标准以及各种LRFD荷载组合所使用的荷载系数。 * **第四章：** 结构分析的通用总结，包括一般分析考虑因素、恒荷载分析、活荷载分析以及各种分析方法。 * **第五章：** 混凝土梁上部结构设计，提供有价值的信息，包括初步设计决策、预应力I形梁的抗弯设计、抗剪和抗扭设计、预应力以及钢筋构造。 * **第六章：** 钢梁上部结构设计，提供有价值的信息，包括LRFD梁在施工、使用、疲劳和断裂、抗弯和抗剪等方面的验证，以及各种钢上部结构细节的设计规定。 * **第七章：** 桥面板和桥面板系统，涵盖传统设计方法、经验设计法、桥面板悬臂设计、预制桥面板以及桥梁栏杆等内容。 * **第八章：** 支座和伸缩缝的通用信息，包括弹性支座和盆式支座的设计要求。 **补充内容：** 课程最后还附有与桥梁上部结构和LRFD相关的常见术语的词汇表。
This course gives a brief introduction to LRFD application to the design of Highway Bridge Superstructures. It will shed some light on the design philosophy of LRFD. It will show the Design truck loading and lane loading used for the design of the Superstructure. It will consider both concrete girder bridges and steel bridges. This course presents the theory, methodology, and application for the design and analysis of both steel and concrete highway bridge superstructures. The manual is based on the AASHTO LRFD Bridge Design Specifications, Seventh Edition, 2014, with Interim Revisions through 2015. Design examples and commentary throughout the manual are intended to serve as a guide to aid bridge engineers with the implementation of the AASHTO LRFD Bridge Design Specifications. This course consists of eight chapters. Chapter 1 provides an introduction to LRFD, including an overview of the LRFD design philosophy and a description of the various LRFD limit states. Chapter 2 provides general information about location features and design objectives, as well as a brief overview of Accelerated Bridge Construction. Chapter 3 presents loads and load factors, including design criteria for common bridge loads, as well as load factors used for various LRFD load combinations. Chapter 4 provides a general summary of structural analysis, including general analysis considerations, dead load analysis, live load analysis, and various methods of analysis. Chapter 5 provides valuable information for the design of concrete girder superstructures, including preliminary design decisions, flexural design of prestressed I-girders, design for shear and torsion, prestressing, and reinforcement details. Similarly, Chapter 6 provides valuable information for the design of steel girder superstructures, including LRFD girder verifications for constructibility, service, fatigue and fracture, flexure, and shear, as well as design provisions for various steel superstructure details. Chapter 7 describes decks and deck systems, covering such topics as traditional design method, empirical design method, deck overhang design, precast deck slabs, and bridge railings. Chapter 8 provides general information about bearings and joints, including design requirements for elastomeric bearings and pot bearings. Finally, a glossary of common terms related to bridge superstructures and LRFD is provided.
