ANALYSIS OF ERRORS IN RESTORATION OF SALTY AND DAMP WALLS
Published In: 3RD INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): CEZARIUSZ MAGOTT , WACLAW BRACHACZEK
Abstract: This paper presents the study of the most common errors made in the restoration of salty and damp masonry structures. Analysis of the errors was based on site visits to 127 facilities where restoration treatment was carried out. A set of technical and technological activities aimed at permanent reduction of the moisture level in walls, usually to 3 - 6 percent of mass humidity, was evaluated in terms of correctness if their implementation. These activities included treatments related to the implementation of damp-proof membranes and a whole set of activities involving new sanitary, heating, electrical, ventilation or air conditioning installations, clearing of obstructions or changing rainwater drainage. Errors were studied in three areas: design, construction and usage. It was found that the basic errors arising during the building drying process are errors at the design stage, followed by construction and usage errors.
- Publication Date: 29-Dec-2015
- DOI: 10.15224/978-1-63248-083-5-22
- Views: 0
- Downloads: 0
A SYSTEM MONITORING OPERATIONAL SAFETY OF STRUCTURES USED IN CIVIL ENGINEERING
Published In: 3RD INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): JANUSZ JURASZEK
Abstract: The paper presents a system monitoring operational safety of structures used in civil engineering. The system is based on the fibre Bragg grating (FBG) sensors or sensors using the optical time domain reflectometry (OTDR) technology. The essence of the solution is to introduce FBG sensors into the structure to make them act as its “nervous system”. The system may be implemented in existing civil engineering structures made of steel, concrete, reinforced concrete, as well as in shells and new structures at the design stage. The paper presents an example of an actual system operating based on FBG sensors and analysing the safety of Poland's longest steel footbridge. The footbridge is 35 years old. Periodic inspections of the Technical Inspection Office allow the footbridge operation if the structure meets the requirements stipulated by relevant regulations, but the decision is not based on a continuous analysis of the footbridge safety. The applied monitoring system makes it possible to
- Publication Date: 29-Dec-2015
- DOI: 10.15224/978-1-63248-083-5-23
- Views: 0
- Downloads: 0