Browsing Ústav stavební mechaniky by Issue Date
Now showing items 1-20 of 119
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How Reliable is the Durability of RC Structures?
(Czech Technical University in Prague, 2004-12-01)The goal of this paper is to show some trends and time profiles of the reliability index relevant to the Serviceability Limit State considering the design service life of RC structures. -
Glass fibre reinforced cement based composite: fatigue and fracture parameters
(2009-06-15)This paper introduces the basic fracture mechanics parameters of advanced building material - glass fibres reinforced cement based composite and its fracture and fatigue behaviour is investigated. To this aim three-point ... -
Influence of freeze-thaw cycles on fracture parameters values of lightweight concrete
(Elsevier Ltd., 2010-06-06)Freezing and thawing resistance is very important characteristic also in the case of lightweight concrete. The paper deals with the influence of periodic freeze-thaw cycles on lightweight concrete fracture parameters values. ... -
Cement based composites for thin building elements: Fracture and fatigue parameters
(Elsevier, 2010-06-06)For application in civil engineering structures and also for strengthening existing structures cement-based composites are one of the most frequently used materials. Although many studies have been conducted on the mechanical ... -
Dynamics of Collapse of a High Building
(David Publishing, 2012-06-25)This paper is a contribution to the discussion about the fall of the New York World Trade Center (WTC) towers in 2001. The differential equation of the collapse of a high building is derived by taking into account many ... -
Multi-parameter crack tip stress state description for estimation of fracture process zone extent in silicate composite WST specimens
(Gruppo Italiano Frattura, 2013-04-15)For wedge splitting test specimens, the stress and displacement fields both in the vicinity and also in large distance from the crack tip are investigated by means of numerical methods. Several variants of boundary conditions ... -
Elastic Lateral-Torsional Buckling of Simply Supported Hot-Rolled Steel I-Beams with Random Imperfections
(2013-05-16)The paper deals with the problem of lateral beam buckling of simply supported hot-rolled I-beams under major axis bending. The bending stability problem is analysed by consideration the minor axis bending and torsion ... -
Technology of concrete with low generation of hydration heat
(Elsevier, 2013-10-23)Modern technology of concrete includes a comprehensive elaboration of proposal related to concrete composition depending on the required parameters of fresh and hardened concrete. One of the fields related to the technologies ... -
Determining fracture energy parameters of concrete from the modified compact tension test
(Gruppo Italiano Frattura, 2014-09-01)The modified compact tension (MCT) test, though not yet recognized as a valid test for determining fracture energy of concrete, is believed to represent a plausible and suitable alternative versus other well established ... -
Sensitivity Analysis of the Stress State in Shell Courses of Welded Tanks for Oil Storage
(Vilnius Gediminas Technical University, 2014-10-20)The paper deals with the analysis of reliability and safety of a welded tank for the storage of oil, which is located in the Czech Republic. The oil tank has a capacity of 125 thousand cubic meters. It is one of the largest ... -
Multi-parameter approximation of stress field in a cracked specimen using purpose-built Java applications
(Gruppo Italiano Frattura, 2015-05-15)A quality of multi-parameter approximation of the stress and displacement fields around a crack tip in a non-brittle material test specimen is studied in the paper. The stress field approximation using Williams power series ... -
X-ray dynamic observation of the evolution of the fracture process zone in a quasi-brittle specimen
(IOP Publishing, 2015-08-01)The aim of this work is the evaluation of the fracture process zone while loading a quasi-brittle concrete compound. The regularly used optical observation of the specimen surface does not provide accurate information ... -
Estimation of the crack propagation direction in a mixed-mode geometry via multi-parameter fracture criteria
(Gruppo Italiano Frattura, 2015-08-15)The presented work introduces a numerical parametric study on the crack propagation direction under mixed-mode conditions (mode I + II). It is conducted for the geometry of an eccentric asymmetric four-point bending of a ... -
Decision Making Methods and Applications in Civil Engineering
(Hindawi, 2015-08-28)Articles published in this special issue prove that useful information for making construction related decisions can be obtained by methods which do not belong to a formal DM, for instance, sensitivity analysis, stochastic ... -
Solving Civil Engineering Problems by Means of Fuzzy and Stochastic MCDM Methods: Current State and Future Research
(Hindawi, 2015-08-28)The present review examines decision-making methods developed for dealing with uncertainties and applied to solve problems of civil engineering. Several methodological difficulties emerging from uncertainty quantification ... -
Influence of the gripping fixture on the modified compact tension test results: evaluation of the experiments on cylindrical concrete specimens
(VŠB-TUO, 2015-12-18)The modified compact tension test (MCT) might become in the future a stable test configuration for the evaluation of fracture-mechanics parameters or also for description of fatigue behavior of composites materials such ... -
Reliability Analysis of Thin-walled Cylindrical Shells
(De Gruyter Open, 2015-12-31)The subject of the article is the verification of the reliability of thin-walled rotationally symmetric cylindrical shells, using probabilistic approaches. Internal forces and stress of the shell are analysed assuming a ... -
A numerical study of two different specimen fixtures for the modified compact tension test – their influence on concrete fracture parameters
(Gruppo Italiano Frattura, 2016-01-01)The modified compact tension test (MCT) may represent a new test configuration for the performance of static and other kinds of fatigue tests on concrete-like materials. Core drilling can be employed to obtain specimens ... -
Improved Element Erosion Function for Concrete-like Materials with the SPH Method
(Hindawi, 2016-03-07)The subject of the article is a description of a simple test from the field of terminal ballistics and the handling of issues arising during its simulation using the numerical techniques of the finite element method. With ... -
New Formula for Geometric Stiffness Matrix Calculation
(Scientific Research Publishing, 2016-04-27)The standard formula for geometric stiffness matrix calculation, which is convenient for most engineering applications, is seen to be unsatisfactory for large strains because of poor accuracy, low convergence rate, and ...