Results 11 to 20 of about 260,874 (244)

Concrete admixtures - sustainable concrete

open access: yesActa Polytechnica CTU Proceedings, 2022
Durability of concrete, an important part of the sustainability theme, was, is, and will be one of the main topics for large infrastructure projects like the Gotthard base tunnel. For such important structures a service life of more than 80 years is expected. The prevailing underground conditions like water ingress, aggressive waters etc.
openaire   +2 more sources

The Concreteness of Concrete Art [PDF]

open access: yesParallax, 2015
In the artistic and cultural lexicon of the short twentieth century, the term ‘concrete’ recurs repeatedly.
openaire   +3 more sources

Field Measurement and Theoretical Analysis of Sidewall Roughness on Shaft Resistance of Rock-Socketed Piles

open access: yesJournal of Marine Science and Engineering, 2023
Sidewall roughness is a key factor influencing the shaft resistance of rock-socketed piles. Owing to the difficulties in onsite measuring and the inconsistency in quantitatively characterizing the roughness degree of sidewalls, existing approaches for ...
Jun Liu   +3 more
doaj   +1 more source

Theoretical Derivation and Parameters Analysis of a Human-Structure Interaction System with the Bipedal Walking Model

open access: yesJournal of Mathematics, 2021
The excessive vertical vibration of structures induced by walking pedestrians has attracted considerable attention in the past decades. The bipedal walking models proposed previously, however, merely focus on the effects generated by legs and ignore the ...
Huiqi Liang, Zhiqiang Zhang, Peizi Wei
doaj   +1 more source

Effect of Wet-Dry Cycles on the Mechanical Performances and Microstructure of Pisha Sandstone

open access: yesMolecules, 2023
The effects of the wet–dry cycles on the chemical compositions, microstructure, and mechanical properties of Pisha sandstone were experimentally investigated in the current study.
Yanbing Zhao   +5 more
doaj   +1 more source

Causes of failures of industrial floors and concrete surfaces – case study [PDF]

open access: yesMATEC Web of Conferences, 2019
The article presents selected cases of damages to industrial floor and road concrete surfaces. he article presents 3 different objects in which damages were not connected with their excessive service load, but resulted from improper execution, design and
Kiernożycki Włodzimierz   +1 more
doaj   +1 more source

Experimental Study on Fatigue Crack Propagation of High-Strength Steel Wire with Initial Defects for Bridge Cables

open access: yesApplied Sciences, 2020
In order to study the effect of initial defects on fatigue crack propagation law, a test method to identify fatigue crack propagation rate and path based on load waveform variation was presented, and a new test device was designed to apply fatigue ...
Ying Wang   +3 more
doaj   +1 more source

Seismic Fragility Analysis of the Reinforced Concrete Continuous Bridge Piers Based on Machine Learning and Symbolic Regression Fusion Algorithms

open access: yesShock and Vibration, 2021
In the fragility analysis, researchers mostly chose and constructed seismic intensity measures (IMs) according to past experience and personal preference, resulting in large dispersion between the sample of engineering demand parameter (EDP) and the ...
Hanbo Zhu, Changqing Miao
doaj   +1 more source

Application of non-metallic composite reinforcement for contact line supports [PDF]

open access: yesMATEC Web of Conferences, 2020
The technology for pre-stressing and anchoring of the composite rebar was developed. It makes possible to reinforce concrete products and produce the contact line supports of high quality, which possesses advantages in comparison with the steel ...
Nikolaev Valery   +2 more
doaj   +1 more source

Study on Seismic Performance of a Stiffened Steel Plate Shear Wall with Slits

open access: yesShock and Vibration, 2015
To determine the force mechanism for the steel plate shear wall with slits, the pushover analysis method was used in this study. An estimated equation for the lateral bearing capacity which considered the effect of edge stiffener was proposed.
Jin-yu Lu   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy