Performance of a Precast Wall with End Columns Rocking-Wall System with Precast Surrounding Structure

2020 ◽  
Vol 117 (3) ◽  
Keyword(s):  
Surrounding Structure ◽  
Rocking Wall ◽  
Wall System

Study on Seismic Performance of Offshore Platform with Rocking Wall - TMD System

2014 ◽  
Vol 610 ◽  
pp. 78-83
Author(s):  
Ji Gang Zhang ◽  
Zhi Wei Jiang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Seismic Performance ◽  
Tuned Mass Damper ◽  
Offshore Platform ◽  
Element Analysis ◽  
Mass Damper ◽  
Jacket Offshore Platform ◽  
Rocking Wall ◽  
Wall System

Offshore platform rocking wall system and tuned mass damper are briefly introduced, and the paper integrates the advantages of these two kinds of seismic method, and the TMD is attached to the jacket offshore platform - rocking wall system, using the ANSYS for finite element analysis, and the analysis results are optimized. The results show that compared with the offshore platform - rocking wall system, additional TMD can give full play to the performances of the two kinds of seismic methods, which is remarkable.

scholarly journals Unbonded Post-tensioned Precast Concrete Walls With Rocking Connections: Modeling Approaches and Impact Damping

2021 ◽  
Vol 7 ◽  
Author(s):  
Dimitrios Kalliontzis ◽  
Maryam Nazari
Keyword(s):  
Structural Damage ◽  
Precast Concrete ◽  
Seismic Energy ◽  
Shake Table Tests ◽  
Modeling Approaches ◽  
Supplemental Damping ◽  
Rocking Walls ◽  
Rocking Wall ◽  
Wall System ◽  
Impact Damping

Over the past two decades, precast concrete members have been utilized in seismically resilient structures. In developing these structures, different techniques have been used for connecting the precast members to the foundation. In building construction, unbonded post-tensioning (PT) tendons can anchor a precast wall to the foundation, resulting in the so-called rocking wall system. The rocking wall system develops a dry connection with the foundation and provides moment resistance by means of the PT tendons. The PT tendons remain elastic when the wall is subjected to design-level ground motions to preserve the re-centering capability of the wall. Moreover, the structural damage is concentrated near the wall toes and can be minimized with proper detailing of the toes. Rocking wall systems can consist of a Single precast Rocking Wall (SRW), which uses no supplemental damping, or walls with supplemental damping in the form of viscous or hysteretic energy dissipating devices. In addition to the supplemental damping, rocking walls dissipate the seismic energy through their impacts on the foundation base, their inherent viscous damping, and the hysteresis of concrete near the wall base. While the investigation of rocking walls continues to gain interest, there is no widely accepted means of modeling their dynamic behavior. This paper investigates two popular approaches for modeling rocking walls with and without supplemental damping: the finite element method and analytical modeling. The ability of the two approaches to capture the local and global responses of the walls is evaluated against shake table tests of walls with multiple-level intensity base motions. Next, the behavior characteristics of the two modeling approaches and their ability to simulate impact damping are discussed.

MEMBANGUN PEMAHAMAN RELASIONAL MELALUI KOMUNIKASI INTERPERSONAL

1970 ◽  
Vol 7 (2) ◽  
Author(s):  
Uus Uswatusolihah
Keyword(s):  
Interpersonal Communication ◽  
Role Model ◽  
Phenomenological Approach ◽  
Structure Form ◽  
Face To Face ◽  
Surrounding Structure ◽  
Interpersonal Communications

This paper focuses on how interpersonal communication is built to achieveagreement and uses phenomenological approach. It is based on a research on therelationship between lecturer and student in the process of thesis consultation inSTAIN Purwokerto.This paper explains that the model of their relationship is a role model, inwhich the role is formed through a surrounding structure. Form and context ofinterpersonal communication happen in a kind of face to face dialogues andindividually. The process of communication hardly found in groups, or withcommunication media such as telephone and internet. Seen from its effectiveness,it is found that most of the interpersonal communications are effective enough tobuild agreement between the individuals involved in the process.

scholarly journals Phase-reduction for synchronization of oscillating flow by perturbation on surrounding structure

2021 ◽  
Vol 911 ◽  
Author(s):  
Innocentio A. Loe ◽  
Hiroya Nakao ◽  
Yasuhiko Jimbo ◽  
Kiyoshi Kotani
Keyword(s):  
Oscillating Flow ◽  
Phase Reduction ◽  
Surrounding Structure

Abstract

Axial compression behaviour of all-composite modular wall system

2021 ◽  
pp. 113986
Author(s):  
Arvind Sharda ◽  
Allan Manalo ◽  
Wahid Ferdous ◽  
Yu Bai ◽  
Lachlan Nicol ◽  
...  
Keyword(s):  
Axial Compression ◽  
Compression Behaviour ◽  
Wall System

scholarly journals Experimental investigation of the thermoelectric cooling with vacuum wall system

2020 ◽  
Vol 6 ◽  
pp. 1244-1248
Author(s):  
Surasit Thiangchanta ◽  
Tuan Anh Do ◽  
Watcharapong Tachajapong ◽  
Yuttana Mona
Keyword(s):  
Experimental Investigation ◽  
Thermoelectric Cooling ◽  
Wall System
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