Results 21 to 30 of about 3,005,056 (311)

The effect of polypropylene fibres within concrete with regard to fire performance in structures [PDF]

open access: yes, 2008
Purpose – The purpose of this paper is to examine the effect of various polypropylene fibre additions (types and volume) to concrete with regard to explosive spalling when subject to high temperatures similar to those experienced in building or tunnel ...
Alan Richardson   +2 more
core   +1 more source

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

Aggregate effect on the concrete cone capacity of an undercut anchor under quasi-static tensile load [PDF]

open access: yes, 2018
In the last decades, fastening systems have become an essential part of the construction industry. Post-installed mechanical anchors are frequently used in concrete members to connect them with other load bearing structural members, or to attach ...
Boumakis, Ioannis   +4 more
core   +3 more sources

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

Calculation of Displacement-Dependent Active Earth Pressure for Deep Excavations in Soft Soil

open access: yesApplied Sciences, 2022
In the urban environment, there are strict control requirements for deep foundation pit deformation, resulting in earth pressure on the flexible supports often being in a nonlimiting state.
Nan Lu   +3 more
doaj   +1 more source

Concrete beams with externally bonded flexural FRP-reinforcement: analytical investigation of debonding failure [PDF]

open access: yes, 2003
This paper studies the problem of early concrete cover delamination and plate-end failure of reinforced concrete beams strengthened with externally bonded FRP-reinforcement. The accuracy of analytical models and finite element (FE) methods for predicting
Adams   +28 more
core   +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

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

Three-dimensional analysis of reinforced concrete beam-column structures in fire [PDF]

open access: yes, 2009
This is the author's accepted manuscript. The final published article is available from the link below. Published version copyright @ 2009 ASCE.In this paper a robust nonlinear finite-element procedure is developed for three-dimensional modeling of ...
Burgess, IW, Huang, Z, Plank, RJ
core   +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

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