scholarly journals STRUCTURAL PERFORMANCE OF POST-INSTALLED REBAR ANCHOR PART 3 : STRUCTURAL PERFORMANCE UNDER COMBINED LOAD OF TENSION AND SHEAR

2021 ◽  
Vol 86 (782) ◽  
pp. 608-618
Author(s):  
Tomoaki SUGIYAMA ◽  
Hideo ONO ◽  
Yutaka ISOZUMI ◽  
Hideyoshi WATANABE
Keyword(s):  
Structural Performance ◽  
Combined Load

Effectiveness of Location and Number of Multiple Tuned Mass Damper for Seismic Structures

2020 ◽  
Vol 9 (6) ◽  
pp. 780-783
Keyword(s):  
Seismic Response ◽  
Software Tool ◽  
Tuned Mass Damper ◽  
Structure Study ◽  
Structural Performance ◽  
Mass Ratio ◽  
Tuned Mass Dampers ◽  
Maximum Reduction ◽  
Mass Damper ◽  
Earthquake Data

Tuned mass dampers (TMD) are one of the most reliable devices to control the vibration of the structure. The optimum mass ratio required for a single tuned mass damper (STMD) is evaluated corresponding to the fundamental natural frequency of the structure. The effect of STMD and Multiple tuned mass dampers (MTMD) on a G+20 storey structure are studied to demonstrate the damper’s effectiveness in seismic application. The location and number of tuned mass dampers are studied to give best structural performance in maximum reduction of seismic response for El Centro earthquake data. The analysis results from SAP 2000 software tool shows damper weighing 2.5% of the total weight of the structure effectively reduce the response of the structure. Study shows that introduction of 4-MTMD at top storey can effectively reduce the response by 10% more in comparison to single tuned mass damper. The use of MTMD of same mass ratio that of STMD is more effective in seismic response.

scholarly journals RESEARCH STUDY ON STRUCTURAL PERFORMANCE OF CONCRETE FILLED STEEL TUBULAR COLUMNS

2002 ◽  
Vol 8 (16) ◽  
pp. 129-134
Author(s):  
Toshiaki FUJIMOTO ◽  
Hirokazu TANAKA ◽  
Toshihiko DEMIZU ◽  
Koji NISHIUCHI ◽  
Hiroki UEDA ◽  
...  
Keyword(s):  
Research Study ◽  
Structural Performance ◽  
Tubular Columns

Investigation on structural performance of perfobond strip connector group in steel-concrete joints

2021 ◽  
Vol 242 ◽  
pp. 112571
Author(s):  
Shaohua He ◽  
Peidong Guan ◽  
Qiao Wang ◽  
Zhi Fang ◽  
Ayman Mosallam
Keyword(s):  
Structural Performance ◽  
Concrete Joints

scholarly journals A Multiobjective Decision-Making Model for Risk-Based Maintenance Scheduling of Railway Earthworks

2021 ◽  
Vol 11 (3) ◽  
pp. 965
Author(s):  
Irina Stipanovic ◽  
Zaharah Allah Bukhsh ◽  
Cormac Reale ◽  
Kenneth Gavin
Keyword(s):  
Utility Theory ◽  
Structural Reliability ◽  
Structural Performance ◽  
Maintenance Planning ◽  
Relative Importance ◽  
User Cost ◽  
Multi Attribute Utility Theory ◽  
Network Maintenance ◽  
Decision Making Model ◽  
Do So

Aged earthworks constitute a major proportion of European rail infrastructures, the replacement and remediation of which poses a serious problem. Considering the scale of the networks involved, it is infeasible both in terms of track downtime and money to replace all of these assets. It is, therefore, imperative to develop a rational means of managing slope infrastructure to determine the best use of available resources and plan maintenance in order of criticality. To do so, it is necessary to not just consider the structural performance of the asset but also to consider the safety and security of its users, the socioeconomic impact of remediation/failure and the relative importance of the asset to the network. This paper addresses this by looking at maintenance planning on a network level using multi-attribute utility theory (MAUT). MAUT is a methodology that allows one to balance the priorities of different objectives in a harmonious fashion allowing for a holistic means of ranking assets and, subsequently, a rational means of investing in maintenance. In this situation, three different attributes are considered when examining the utility of different maintenance options, namely availability (the user cost), economy (the financial implications) and structural reliability (the structural performance and subsequent safety of the structure). The main impact of this paper is to showcase that network maintenance planning can be carried out proactively in a manner that is balanced against the needs of the organization.

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