INVESTIGATING THE FEATURES OF EXTRACTION OF FERROUS-CONCRETE SURFACE CONSTRUCTIONS FOR EXTERNAL ARMORATION
Journal: Bulletin of Prydniprovs'ka State Academy of Civil Engineering and Architecture (Vol.2017, No. 4)Publication Date: 2018-02-16
Authors : SAVYOVSKY V. V. MOLODID O. S.;
Page : 29-36
Keywords : beam structures; amplification; external reinforcement; bearing capacity of structures; carbon fiber; steel plates; angles;
Abstract
Amplification of beam structures is usually performed in several classical ways, in particular: increase in cross-section due to build-up; changing the static scheme of work due to the installation of laggings, beam knees, racks, etc. However, the arrangement of additional reinforcement structures leads to a decrease in inter-floor space, an increase in the load on the supports and foundations and changes in structural and planning decisions of the interior space of the building. An alternative to these methods of reinforcement of beam structures is external reinforcement namely high-tension cloths, plates or strips that are bonded with special adhesives to the surfaces of structures. However, domestic scientific-technical and normative literature actually leaves such methods of amplification out of its attention. That is why a number of experimental studies were carried out to determine efficiency of reinforcing structures under MAPEI technology with the use of carbon fiber and in order to find alternative to domestic technologies. In alternative studies the authors used fiberglass, steel strips and steel angles bonded with special adhesives of domestic production. The efficiency criterion of technologies being tested was adopted bending load capacity of amplified beam structures made of reinforced concrete. The results of experimental studies found that reinforcement technology MAPEI by applying carbon fiber increases carrying capacity of beams to 417.6% compared with non-enhanced beams. At the same time, amplification of beams with steel angles increased their bearing capacity by 343.9%, with steel plates - by 294.8%, and with fiberglass - by 319.4%. The obtained results indicate high efficiency of the investigated methods of strengthening for beam structures and build up the direction of further research of organizational and technological solutions for the implementation of external additional reinforcement of beam constructions.
Other Latest Articles
- INVESTIGATION OF STRAIN STATE OF BASE OF THE FRAGMENT’S MODEL OF THE PILE FOUNDATION DURING STAGED LOADING OF ITS ELEMENTS IN THE SOIL TANK
- PHYSICAL DESIGN OF CHANGE OF POWER INFLUENCE IS ON WORKPLACES TAKING INTO ACCOUNT HIGH TEMPERATURE RADIATION
- Reliable Application Enhanced Framework (RAEF) for Frenzie Application upon a Frenzy Cloud Overlay Architecture for Presence Services using Biometrics through Smartphones
- Authenticating and Securing Ad-Hoc Networks using Gateway Selection Algorithm
- Hybrid Multi-Core Algorithm Based Image Segmentation for Plant Disease Identification using Mobile Application
Last modified: 2018-02-16 17:38:11