钢砂浆板抗屈曲支撑结构稳健性监测系统的提出与应用

IF 1.2 Q3 CONSTRUCTION & BUILDING TECHNOLOGY
M. Fujita, Kengo Awazu, Makoto Nakamura, Kokoro Yamasaki, M. Iwata
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引用次数: 0

摘要

建筑钢结构的结构完好性监测系统对于大地震后的快速检测是有效的。损伤控制结构可以有效监测,因为损伤严格集中在能量吸收构件中,在这种情况下,适合监测的物理量是这些能量吸收构件的位移。作为能量吸收构件之一的屈曲约束支撑(也称为使用钢砂浆板的BRB,BRBSM)可以通过监测传感器直接监测;将有可能快速评估损坏程度并迅速做出更换决定。针对结构完好性监测系统的功能,通过循环荷载试验验证了使用钢砂浆板的BRB损伤评估方法及其相应的监测系统。研究表明,使用该系统可以近似估计累积塑性应变能,该系统适用于中高层钢结构建筑。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Proposal and application of structural soundness monitoring system for the buckling‐restrained brace using steel mortar planks
A structural soundness monitoring system for building steel structures is effective for a quick inspection just after large earthquakes. A damage‐controlled structure can be monitored effectively because damage is strictly concentrated in energy‐absorbed members, and that, in this case, the physical quantity suitable for monitoring is displacements of those energy absorbed members. Buckling‐restrained braces (also, the BRB using steel mortar planks, BRBSM), one of the energy‐absorption members, can be directly monitored by the monitoring sensor; it will be possible to quickly evaluate the extent of damage and make a prompt decision on the replacement. Focusing on functionality of a structural soundness monitoring system, a damage evaluation method of the BRB using steel mortar planks and its corresponding monitoring system are verified conducting by a cyclic loading test. It is demonstrated that the cumulative plastic strain energy can be estimated approximately using this system, and this system is adapted to a mid‐rise steel building.
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来源期刊
Steel Construction-Design and Research
Steel Construction-Design and Research CONSTRUCTION & BUILDING TECHNOLOGY-
CiteScore
3.00
自引率
6.20%
发文量
63
期刊介绍: Steel Construction publishes peerreviewed papers covering the entire field of steel construction research. In the interests of "construction without depletion", it skilfully combines steel with other forms of construction employing concrete, glass, cables and membranes to form integrated steelwork systems. Since 2010 Steel Construction is the official journal for ECCS- European Convention for Constructional Steelwork members. You will find more information about membership on the ECCS homepage. Topics include: -Design and construction of structures -Methods of analysis and calculation -Experimental and theoretical research projects and results -Composite construction -Steel buildings and bridges -Cable and membrane structures -Structural glazing -Masts and towers -Vessels, cranes and hydraulic engineering structures -Fire protection -Lightweight structures
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