An Experimental Estimation of a Reinforcement Step Variability Influence in Monolithic Reinforced Concrete Beam Plates on their Carrying Ability and Cracking Character
G. N. Gladysheva, D. G. Gladyshevb
a National University «Lviv Polytechnica»
b Scientific-Design Firm «Rekonstrproekt»
Annotation: There are given the results of experimental researches of a carrying ability and reinforced concrete beam plate rigidity, a fixed character of their cracking depending on the working armature step variability which is simulated by possible variants of the normalized and industrial deviations of the armature of design meanings. Is was fixed that carrying ability, sags, and the character of crack distribution depend on working armature step variability and, naturally, on the percent level of a longitudinal reinforcement in the experimental plate cross section. It has been found out that a significant deviation of working armature rod step deviation in monolithic reinforced concrete plates from the requirements of the design documentation should be considered as defects, which reduce carrying ability and rigidity of these structural components. The authors recommend to accept a statistically proved step of the working armature with security of 95% of the average meaning of its actual steps to design reinforced concrete plates by the normative documents in force.
Keywords: reinforced concrete beam plates, working armature step variability as opposed to the design meanings, experimental researches, carrying ability, sags, character of cracking, analysis of experimental data.
Pages: 133-141.
Link for citation: Gladyshev, G. N.; Gladyshev, D. G. An Experimental Estimation of a Reinforcement Step Variability Influence in Monolithic Reinforced Concrete Beam Plates on their Carrying Ability and Cracking Character . – Text : electronic. – In: Modern Industrial and Civil Construction. – 2007. – Vol. 3, N 3. – Р. 133-141. – URL: https://donnasa.ru/publish_house/journals/spgs/2007-3/02_gladyschev_gladyschev.pdf (date of access: 16.09.2024). (in Russian)
Vol. 3, N 3 (2007)Journal: Modern Industrial and Civil Construction
Publish house: Donbas National Academy of Civil Engineering and Architecture