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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-2/
课程评论：没有评论
课程名称：LRFD：高速公路桥梁上部结构设计，第二部分 课程概述：本课程简要介绍LRFD（极限状态设计法）在高速公路桥梁上部结构设计中的应用。课程将阐明LRFD的设计理念，展示用于上部结构设计的设计卡车荷载和车道荷载，涵盖混凝土梁桥和钢桥。课程提供钢和混凝土高速公路桥梁上部结构设计与分析的理论、方法论和应用。该手册基于2014年版的AASHTO LRFD桥梁设计规范（第七版），并包含2015年的修订。本课程包含八个章节，主要内容如下： 第一章：介绍LRFD，包括LRFD设计理念概述和各类LRFD极限状态的描述。 第二章：提供位置特征和设计目标的一般信息，并简要概述加速桥梁建设。 第三章：介绍荷载和荷载系数，包括常见桥梁荷载的设计标准及LRFD荷载组合使用的荷载系数。 第四章：总结结构分析的一般内容，包括一般分析考虑、恒载分析、活荷载分析及各种分析方法。 第五章：提供混凝土梁上部结构设计的重要信息，包括初步设计决定、预应力I型梁的弯矩设计、剪力与扭转设计、预应力及钢筋细节。 第六章：提供钢梁上部结构设计的重要信息，包括LRFD梁构造的可施工性、服务性、疲劳与断裂、弯曲与剪力的验证，以及各种钢结构细节的设计条款。 第七章：描述桥面和桥面系统，涵盖传统设计方法、经验设计方法、桥面悬挑设计、预制桥面板及桥梁护栏等主题。 第八章：提供关于支座和接头的一般信息，包括弹性支座和锅式支座的设计要求。 最后还附有桥梁上部结构和LRFD相关的常用术语的词汇表。 该课程为桥梁工程师提供了实施AASHTO LRFD桥梁设计规范的指导，帮助他们深入理解和应用桥梁设计的相关理论与实践。
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.
