Results 11 to 20 of about 2,017 (215)

Experimental researches on in-situ loading and unloading deformation characteristics of soft soil based on pressuremeter tests in Shanghai area

open access: yesYantu gongcheng xuebao, 2022
The quality of the soft soil includes low strength and high compressibility, and the deformation shows obviously different nonlinear characteristics under different stress states and paths.
ZHANG Han 1, 2, 4, YANG Shi-fei 1, 4, WANG Lin 1, 2, 4, LIN Tian-xiang 3, 4
doaj   +1 more source

Stiffness degradation of marine soft clay under monotonic and cyclic loadings

open access: yesYantu gongcheng xuebao, 2020
A series of undrained monotonic and cyclic triaxial tests are conducted on Jiaxing intact marine soft clay by using a testing system combined with triaxial apparatus and bender element to investigate the small strain shear modulus and stiffness ...
LU Su-jie 1, TONG Jun-hao 2, PAN Kun 2, YUAN Zong-hao 2, PAN Xiao-dong 2, SHI Li 2, HE Ben 1
doaj   +1 more source

Cyclic threshold shear strains for pore water pressure generation and stiffness degradation in marine clay

open access: yesYantu gongcheng xuebao, 2023
The cyclic threshold shear strain is a fundamental property of saturated soils under cyclic loading. To investigate the cyclic threshold shear strains for pore water pressure generation (γtp) and stiffness degradation (γtd), a series of strain-controlled
XIAO Xing 1, JI Dongwei 1, HANG Tianzhu 1, WU Qi 1, 2, CHEN Guoxing 1, 2
doaj   +1 more source

ADOPTING A FIBER MACROELEMENT FOR ACCOUNTING THE SSI EFFECT IN NONLINEAR SEISMIC ANALYSIS

open access: yesFacta Universitatis. Series: Architecture and Civil Engineering, 2023
The main purpose of this paper is to propose a practical approach for considering the soil – shallow foundation – superstructure interaction effect in nonlinear seismic analysis.
Nikolay Y. Milev
doaj   +1 more source

Methodology of substantive fatigue life valuation of composite components of aero structure

open access: yesНаучный вестник МГТУ ГА, 2020
The key features of the regulatory requirements for the fatigue life valuation of composite laminates were presented. With allowance for those requirements and through the use of the well-known patterns of residual strength degradation and stiffness ...
V. E. Strizhius
doaj   +1 more source

An Introduction to the Methodology of Earthquake Resistant Structures of Uniform Response

open access: yesBuildings, 2012
Structures of Uniform Response are special earthquake resistant frames in which members of similar groups such as beams, columns and braces of similar nature share the same demand-capacity ratios regardless of their location within the group.
Carl E. Grigorian, Mark Grigorian
doaj   +1 more source

Effect of Fast Loading on the Seismic Performance of SRUHSC Frame Structures

open access: yesBuildings, 2022
Due to the high compressive strength and durability of ultra-high-strength concrete, SRUHSC (steel-reinforced ultra-high-strength concrete) frame structures have been used extensively in super-high-rise buildings.
Wei Liu, Yingchao Ma, Jinqing Jia
doaj   +1 more source

Nonlinear multilevel analysis of reinforced concrete frames

open access: yesEngineering Structures and Technologies, 2016
Full range analysis of reinforced concrete (RC) members covering the post-crack and post-peak regimes is important for obtaining the deformation response and failure mode of structural members.
Pui Lam Ng   +2 more
doaj   +1 more source

Experimental results of fatigue and sustained load tests on autoclaved aerated concrete

open access: yesJournal of Civil Engineering and Management, 2005
The fatigue strength of concrete is lower than its static strength. An attempt was made to accelerate the destabilisation process due to microcracking by the application of fatigue loads.
Erich Raue, Enrico Tartsch
doaj   +1 more source

Shear Strength and Stiffness Degradation of Geomaterials in Cyclic Loading

open access: yesSoils and Rocks, 2016
Cyclic loading on civil structures can lead to a reduction of strength and stiffness in the loaded materials. The life span of many cyclically loaded structures such as wind turbines, high-speed train tracks and bridges strongly depends on the foundation.
Robert Pytlik, Stefan V. Baars
openaire   +2 more sources

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