Quasi-static test of the gravity railway bridge pier with a novel preventative seismic strengthening technique

Structures ◽  
2022 ◽  
Vol 35 ◽  
pp. 68-81
Author(s):  
Zhengnan Liu ◽  
Xingchong Chen ◽  
Mingbo Ding ◽  
Xiyin Zhang ◽  
Jinhua Lu
Keyword(s):  
Bridge Pier ◽  
Railway Bridge ◽  
Seismic Strengthening ◽  
Static Test ◽  
Strengthening Technique

Shaking table test of a novel railway bridge pier with replaceable components

2021 ◽  
Vol 232 ◽  
pp. 111808
Author(s):  
Xiushen Xia ◽  
Xiyin Zhang ◽  
Jinbo Wang
Keyword(s):  
Shaking Table Test ◽  
Bridge Pier ◽  
Shaking Table ◽  
Railway Bridge

Seismic Strengthening of Masonry School Building with Steel Mesh Mortar Splint

2013 ◽  
Vol 351-352 ◽  
pp. 382-385 ◽  
Author(s):  
Hao Wu ◽  
Shi Chun Zhao ◽  
Hu Xu
Keyword(s):  
Failure Mechanism ◽  
Masonry Structure ◽  
School Buildings ◽  
Seismic Strengthening ◽  
Load Bearing Capacity ◽  
Characteristic Energy ◽  
Static Test ◽  
Steel Mesh ◽  
Energy Dissipation Capacity ◽  
Damage Characteristic

Quasi-static test on a half-scale two-story masonry model was carried out to study the seismic strengthening performance and damage characteristic of existing masonry school buildings. The wall piers between openings were partially strengthened with steel mesh mortar splint where the steel mesh is reliably anchored using vertical reinforcements. The results show that strong pier-weak spandrel failure mechanism is guaranteed due to the formation of global failure mechanism. The failure characteristic, energy dissipation capacity and load bearing capacity of masonry structure are significantly improved.

Development of an innovative seismic strengthening technique for traditional load-bearing masonry walls

2010 ◽  
Vol 10 (1) ◽  
pp. 113-133 ◽  
Author(s):  
Jorge Proença ◽  
António Sousa Gago ◽  
Joaquim Cardoso ◽  
Vítor Cóias ◽  
Raquel Paula
Keyword(s):  
Masonry Walls ◽  
Seismic Strengthening ◽  
Load Bearing ◽  
Strengthening Technique

scholarly journals New Seismic Strengthening Technique

2016 ◽  
Vol 54 (5) ◽  
pp. 483-489
Author(s):  
T. Kei
Keyword(s):  
Seismic Strengthening ◽  
Strengthening Technique

scholarly journals Seismic Strengthening of Low Strength Concrete Columns using High Ductile Metal Strap Confinement: A Case Study of Kindergarten School in Northern Thailand

2020 ◽  
Vol 17 (12) ◽  
pp. 1335-1347
Author(s):  
Thanongsak IMJAI ◽  
Monthian SETKIT ◽  
Reyes GARCIA ◽  
Piti SUKONTASUKKUL ◽  
Suchart LIMKATANYU
Keyword(s):  
Cost Effective ◽  
Concrete Columns ◽  
Design Guidelines ◽  
Initial Assessment ◽  
Seismic Strengthening ◽  
Construction Time ◽  
Post Tension ◽  
Strengthening Technique ◽  
First Time

The 2014 Chaing Rai earthquake (Thailand) caused extensive damage in many reinforced concrete (RC) buildings built before the introduction of modern seismic design guidelines. Much of the damage on these buildings was attributed to the inadequate capacity and/or ductility of columns. As a result, suitable and cost-effective strengthening techniques for such substandard elements are necessary. This article presents a case study on the seismic strengthening of a one-story RC kindergarten school located in Ampor Pan, Chaing Rai province. The building was partially damaged during the afore-mentioned earthquake, which led to cracking in walls, columns, and beam-column joints. As part of the initial assessment, innovative repair solutions were sought to minimize construction time, labor, and material cost. Accordingly, an innovative strengthening technique that uses Post-tension Metal Strapping (PTMS) was proposed to strengthen the damaged RC elements. This article presents details of the structural assessment performed on the building, as well as details of the PTMS strengthening strategy, which was applied for the first time in a real full-scale structure. This article contributes towards the validation and application of the PTMS strengthening on real structures, which had not been possible until now.

Experimental Research on Strengthened by Gluing Steels Seismic Behaviour for Earthquake Damaged Railway Bridge with Gravity Piers

2013 ◽  
Vol 838-841 ◽  
pp. 1145-1148
Author(s):  
Ming Bo Ding ◽  
Xing Chong Chen
Keyword(s):  
Energy Dissipation ◽  
Experimental Research ◽  
Steel Plate ◽  
Horizontal Load ◽  
Railway Bridge ◽  
Seismic Behaviour ◽  
Static Test ◽  
Railway Bridges ◽  
Energy Dissipation Capacity ◽  
Comparison And Analysis

In order to study the seismic performance of steel plate reinforcement on gravity piers in railway bridges, a quasi-static test was conducted on the 0.2% steel ratio pier model. Shearing damage on the pier model occurred on the action of horizontal load. Steel-bonded reinforcement was conducted on the damaged model, and comparison and analysis were made based on the failure mode, bearing capacity, ductility, energy dissipation capacity and stiffness degradation.

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