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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/
课程评论：没有评论
课程名称：LRFD：公路桥梁上部结构设计 课程概述： 本课程简要介绍了LRFD（极限状态设计法）在公路桥梁上部结构设计中的应用，阐明了LRFD的设计理念。课程中将讨论设计卡车荷载和车道荷载，并考虑混凝土梁桥和钢梁桥的设计。课程内容涵盖了钢结构和混凝土结构公路桥上部结构的设计与分析的理论、方法和应用。手册基于2014年发布的《AASHTO LRFD桥梁设计规范》第七版及2015年间的修订，设计实例和评论旨在帮助桥梁工程师实施AASHTO LRFD桥梁设计规范。 课程共分为八章： 第一章介绍LRFD，包括LRFD设计理念的概述和各种LRFD极限状态的描述。 第二章提供有关位置特征和设计目标的一般信息，并简要概述快速桥梁施工。 第三章介绍荷载和荷载因子，包括常见桥梁荷载的设计标准以及用于各种LRFD荷载组合的荷载因子。 第四章概述结构分析，包括一般分析考虑、死载分析、活载分析和各种分析方法。 第五章为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型梁的弯矩设计、剪力和扭矩设计、预应力和钢筋细节。 第六章则专注于钢梁上部结构设计，提供关于LRFD梁的可施工性、服务能力、疲劳与断裂、弯曲和剪力的验证，以及各种钢结构细节的设计规定。 第七章描述了桥面和桥面系统，涵盖传统设计方法、经验设计方法、桥面悬伸设计、预制桥面板和桥栏杆等主题。 第八章提供有关支座和接头的一般信息，包括弹性支座和锅支座的设计要求。 最后，课程附带了与桥梁上部结构和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.
