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Resiliency of steel and composite structures

Roberto T. LEON,Yu GAO

《结构与土木工程前沿（英文）》 2016年第10卷第3期页码 239-253 doi: 10.1007/s11709-016-0349-7

摘要： This paper is divided into two parts. The first part addresses the resiliency and sustainability of steel and composite structures from a fundamental standpoint, and it is intended as an introduction to the other six papers that form part of this issue related to resiliency of steel structural systems in seismic areas. The paper posits the idea that resiliency is a characteristic that embodies sustainability rather than the traditional opposite point of view. The second part of the paper is divided into two sections, with the first section describing a number of retrofit technologies with recentering characteristics that have been developed for small, seismically deficient buildings in developing countries. The second section describes an innovative connection between circular concrete filled tubes and conventional beams with reduced flange sections consisting of steel and shape memory alloy bars and end plates. The connection has partial restraint behavior and strong recentering properties. This connection is used to demonstrate that some creative thinking can lead to innovative ways of addressing issues related to robustness, resiliency and sustainability of steel structures.

关键词： steel structures resiliency sustainability recentering systems shape memory alloys

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A review of sustainability metrics for the construction and operation of airport and roadway infrastructure

Sarah M. L. HUBBARD, Bryan HUBBARD

《工程管理前沿（英文）》 2019年第6卷第3期页码 433-452 doi: 10.1007/s42524-019-0052-1

摘要：

Sustainability has become increasingly important, however, relatively little attention has focused on metrics for the construction and operation of airport and roadway infrastructure. Most attention has focused on buildings, with high profile BREEAM and LEED projects taking center stage. Sustainability is also important in airport and roadway infrastructure projects, which have significant public impact but have a much lower profile than vertical construction when it comes to sustainability. Sustainable infrastructure is important in China and India where new infrastructure is under construction to meet growing and developing economies, and in the US, where infrastructure is in substandard condition and requires reconstruction. The purpose of this paper is to provide an overview and discussion of sustainability rating systems for airport and roadway infrastructure, including both construction and operation. Specific projects that highlight both proven and innovative sustainable practices are included to illustrate the application of these concepts. Finally, the relationship between sustainable transportation infrastructure and resilient transportation infrastructure is addressed since resiliency is of growing interest and there is overlap between these concepts.

关键词： sustainable construction infrastructure airport roadway resiliency sustainability

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地下空间利用与城市防灾研究若干新进展与思考

陈志龙,陈家运,郭东军,吴涛

《中国工程科学》 2013年第15卷第5期页码 65-70

摘要：

城市地下空间是城市综合防灾空间的重要与必要组成部分。近年来，随着世界城市化进程和地下空间利用的加速，城市综合防灾面临挑战，利用地下空间的综合防灾特性进行城市综合防灾越来越受到国际学者的关注。本文分析了世界各国利用地下空间进行综合防灾的最新研究进展与典型工程案例，提出了我国利用地下空间进行城市综合防灾的建议，以期为我国城市地下空间开发利用提供借鉴与参考。

关键词：地下空间综合防灾城市可恢复力关键基础设施

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通过Twitter的地理位置标记和文本来了解印度金奈基础设施恢复能力的初步研究 Article

Wai K. Chong, Hariharan Naganathan, Huan Liu, Samuel Ariaratnam, Joonhoon Kim

《工程（英文）》 2018年第4卷第2期页码 218-223 doi: 10.1016/j.eng.2018.03.010

摘要：

地理位置标记是一种使用地理标识元数据来标记数据和信息的过程，文本挖掘是指通过数据分析从文本中获取信息的过程。地理位置标记和文本挖掘这两种方法常被用于分析丰富的社交媒体数据，如视频、网站、文本和二维（QR）代码。它们经常被用来模拟消费者行为和预测市场趋势。本研究使用这两种技术分析在2015 年印度金奈洪灾中获得的数据，从而了解了当地的基础设施的恢复能力。本文对社交媒体（主要是Twitter）的潜在用途进行了概念化研究，这能够帮助我们更好地了解基础设施的恢复能力。研究小组使用特征提取技术从在发洪水期间由印度金奈人发出的推文中提取出Twitter 数据。首先，本项研究指出，这些技术有助于从地理位置标记，包含位置的单词以及每个位置的推文频率来判别基础设施的位置、缺陷和故障程度。然而，要更好地利用推文文本，以及更深入地理解文中使用的词语文化背景、用于描述该事件的词语背景和使用频率最低的词语，还需做出更多努力。

关键词：社交媒体洪流工程设计