The Repair and Rehabilitation of Structures

ZHUANG, YUN 老師


The Repair and Rehabilitation of Structures

The Repair and Rehabilitation of Structures ZHUANG, YUN

CATEGORY Year Level Number of students taking the courses Curriculum Curriculum and Instructional Features
■Required Courses for College and Departments Senior 20 ■Department of Civil Engineering and Disaster Prevention
Departmental elective course		 ●Planning Objective：
The course aims to devise a safety monitoring system for structural integrity to optimize disaster prevention capabilities within the Shenkeng area.
●Curriculum and Instructional Features：
The course systematically addresses structural repair and reinforcement through a three-phase process: 1. On-site inspection of the structural condition; 2. Assessment of repair and reinforcement needs; 3. Planning for a safety and disaster prevention monitoring system, enhancing the overall disaster resilience of Shenkeng.
●Expected Social Impact:
Through the activities of this course, local individuals will become familiar with the basic concepts of structural repair and reinforcement and integrate these with practical fieldwork.

    This course provides an introduction to the repair and rehabilitation of structures, helping students grasp the assessment of repair and rehabilitation requirements for buildings impacted by disasters. Students perform structural condition surveys through on-site assessments, which encompass evaluations of regional hazards potential and on-site structural inspections. Selected structures are integrated into a safety monitoring system plan to enhance disaster prevention based on these assessments. This system integrates structural health diagnostics with damage assessment technology, enabling real-time evaluation of structural conditions following an earthquake. It facilitates immediate alerts for potential damage or safety concerns while allowing for continued use if no anomalies are identified.


Course learning outcomes:

    The course provided students with insights into the rich cultural and historical background of Shenkeng through field surveys, exploring the origins of Shenkeng Old Street and the architectural characteristics of its street houses. This experience cultivated a deep appreciation for historical relics and motivated students to engage in preserving local heritage while fulfilling the course's goals. The semester's outcome involved using buildings from Shenkeng Old Street as modeling cases, enabling students to develop professional skills in architectural modeling methods and procedures while also understanding the interplay between history and architecture. The students also conducted structural assessments and proposed disaster prevention plans for Shenkeng's buildings, as follows:

1.On-Site Structural Condition Survey
The on-site structural condition survey comprised two parts: the regional hazard potential assessment and the on-site structural evaluation.

(1) Hazard Potential Assessment
The data collection centered on cadastral maps of Shenkeng Old Street, disaster prevention systems in Shenkeng District, potential landslide areas, and the distribution of landslides and dip slopes. Furthermore, data was gathered regarding the 24-hour total rainfall of 500mm in the Shenkeng area, suggesting possible flood risks.
(2) On-Site Structural Evaluation
This evaluation included environmental inspections of surrounding buildings and initial assessments, following the guidelines for the structural safety of urban hazardous and historic buildings. Documentation of the building facades in Shenkeng Old Street was also captured through photographs.

2.Repair and Rehabilitation Requirements Assessment
The assessment of repair and rehabilitation requirements concentrated on two chosen buildings in Shenkeng Old Street, as outlined below:

(1) Repair involves the process of bringing back components or elements that have been damaged by earthquakes to their original or close-to-original condition.
(2) Rehabilitation encompasses the restoration of components to their original condition while also incorporating enhancements or new structural elements to bolster overall strength and seismic resilience.
The 2021 Shenkeng District Disaster Prevention Plan indicates that estimates derived from TERIA simulations forecast no total collapses and four partial collapses across four buildings in the Shenkeng and Pushin neighborhoods. The observed effects were a result of soil loosening and structural damage stemming from the interplay of fault displacement and the geological conditions present in the simulated scenario.

3.Safety Monitoring System Plan
The plan for the safety monitoring system included the selection of a single building in Shenkeng Old Street to establish a safety disaster monitoring system. It was suggested that automated monitoring elements like column tilt angles, beam-to-column distance, and acceleration between beams and columns be incorporated to facilitate early warning and response. The integration of structural health diagnostics and damage assessment technology would aid in evaluating structural conditions after an earthquake, offering prompt alerts for potential safety hazards or permitting safe usage if no irregularities are found.

Project outcome by Lu Weicheng, Chen Youchang, Feng Jingwen, Qiu Weihao, Sun Chunyun, Wu Chengyan, Li Haolun, Chen Junting, and Zhang Zien
結構物修復與補強 結構物修復與補強
An assessment of the repair and rehabilitation requirements was carried out on two chosen buildings in Shenkeng Old Street.
Video link:
https://www.youtube.com/watch?v=v0llnNDFhLs&t=3s
https://www.youtube.com/watch?v=Ta8bbOBjJL8