DOI: 10.5937/jaes15-14602
This is an open access article distributed under the CC BY-NC-ND 4.0 terms and conditions.
Volume 15 article 449 pages: 325 - 331
The article deals with the estimation of the dynamic increase of stresses in the element made of the composite two-component material such as reinforced concrete, that appears when local destruction of the concrete matrix (crack formation) occurs. When the brittle fracture of the concrete occurs the stresses acting in the stretched concrete are transmitted to the reinforcing bars instantaneously that leads to longitudinal oscillations. In this moment stresses acting in the reinforcing bars can be higher than ultimate stresses. Hence progressive collapse of a structure is possible. It is presented general solution of the forced longitudinal oscillations problem. Displacement and stress increment equations are given. General solution is illustrated by analysis of a progressive collapse of a largepanel folded shell when local destruction of concrete matrix in the tightening element occurs.
Kolchunov V.I, Klyuyeva N.V.,
Androsova N.B. & Bukhtiyarova A.S., (2014). Zhivuchest’ zdaniy i
sooruzheniy pri zaproyektnykh vozdeystviyakh [Survivability of buildings and
structures under beyond design impacts]. Moscow: Publishing house ASV.
Wenga J., Tana K.H.& Leeb
C.K., (2017). Modeling progressive collapse of 2D reinforced concrete frames
subject to column removal scenario.. Engineering Structures, 141, 126- 143.
doi:10.1016/j.engstruct.2017.03.018
Xianzhong Zhao, Shen Yan, Yiyi
Chen, Zhenyu Xu& Yong Lu, (2017). Experimental study on progressive
collapseresistant behavior of planar trusses.. Engineering Structures, 135,
104-116. doi:10.1016/j.engstruct.2016.12.013
Wenda Wang, Huawei Li& Jingxuan
Wang, (2017). Progressive collapse analysis of concrete-filled steel tubular
column to steel beam connections using multi-scale model. Structures, 9,
123-133. doi:10.1016/ j.istruc.2016.10.004
Feng Miao& Michel Ghosn,
(2016). Reliability- based progressive collapse analysis of highway bridges.
Structural Safety, 63, 33- 46. doi:10.1016/j.strusafe.2016.05.004
Fedorova N.V. & Khalina T.A.,
(2017). Issledovaniye dinamicheskikh dogruzheniy v
zhelezobetonnykh konstruktivnykh sistemakhpri vnezapnykh strukturnykh
perestroykakh [Research of dynamic stress increasing in reinforced concrete
structural systems when structural rearrangements occurs suddenly].
Promyshlennoye i grazhdanskoye stroitel’stvo, 5, 45-49.
Dem’yanov A.I., Kolchunov Vl.I.,
Senchenko D.S. & Terskikh A.B., (2017). Raschetnaya model’
statiko-dinamicheskogo deformirovaniya v zhelezobetonnoy tsentral’no -
rastyanutoy konstruktsii v moment razrusheniya betonnoy matritsy [A
computational model of static-dynamic deformation in a reinforced concrete
centrally-stretched structure at the moment of destruction of a concrete
matrix]. Stroitel’stvo i rekonstruktsiya, 2, 3-9.
Geniyev G.A., Kolchunov V.I.,
Klyuyeva N.V. and etc., (2004). Prochnost’ i deformativnost’ zhelezobetonnykh
konstruktsiy pri zaproyektnykh vozdeystviyakh [Strength and deformability of
reinforced concrete structures under beyond-design effects]. Moscow: Publishing
house ASV.
Gordon V. A.& Kravtsova E.
A., (2010). Pereraspredeleniye napryazhennosti v slozhnoy sostavnoy balke pri
degradatsii svyazey sdviga [Redistribution of stresses in a loaded composite
beam during degradation of shear bonds]. Stroitel’naya mekhanika i raschet
sooruzheniy, 4, 2-6.
Gordon V.A.& Kravtsova E.A.,
(2012). Dinamicheskiye dogruzheniya v balke s raznourovnevymi potol’nymi
rassloyeniyami [Dynamic force increasing in a beam with multilevel longitudinal
cracks]. Stroitel’stvo i rekonstruktsiya, 6(44), 17-27.
Posobiye po proyektirovaniyu
zhelezobetonnykh prostranstvennykh konstruktsiy pokrytiy i perekrytiy (k SP
52-117-2008 *) [Manual on the design of reinforced concrete spatial structures
of coatings and overlappings (to SP 52-117-2008*)]. (2010). Moscow: SRIRC named
after A.A. Gvozdev - Institute of JSC Science and Research Center Construction.
Kolchunov V.I., Pyatikrestovskiy
K.P.& Klyuyeva N.V., (2008). Prostranstvennyye konstruktsii pokrytiy:
Uchebnoye posobiye [Spatial construction of coatings: a textbook]. Moscow:
Publishing house ASV.
Svod pravil SP 63.13330.2012 Zhelezobetonnyye
konstruktsii. Osnovnyye polozheniya. Aktualizirovannaya redaktsiya SP
52-01-2003: Izdaniye ofitsial’noye [Code of Regulations SP 63.13330.2012
Reinforced concrete structures. Basic provisions. Updated version of SP
52-01-2003: official edition].