This comprehensive review focuses on the integration of intelligent technologies, such as Internet Things (IoT), Artificial intelligence (AI), and Nondestructive Testing (NDT), in Structural Health Monitoring (SHM) field civil engineering. The article discusses technologies SHM for residential, commercial, industrial, historical, special buildings, nuclear power plants (NPPs). With incorporation there have been remarkable advancements SHM, a crucial aspect infrastructure safety, reliability,...

<div>The New Car Assessment Program (e.g., US NCAP and EuroNCAP) frontal crash tests are an essential part of vehicle safety evaluations, which mandatory for the certification civil means transport prior to normal road exploitation. The presented research is focused on behavior a tubular low-entry bus frame during impact test at speeds 32 56 km/h, perpendicular rigid wall surface. deformation zones in front roof parts were estimated using Ansys LS-DYNA considered such factors as...

The core idea of the research consists in a formulation boundary conditions mechanical accelerator pedal’s strength an Ansys environment, whose are equivalent to full-scale tests under critical loads defined by UNECE’s Regulation No. 13. lack regulatory requirements for pedal types other than brake pedals is major gap vehicle certification, especially when it comes agricultural machinery. In such cases, authors suggest being guided UNECE R 13 regarding and checking their behavior at least...

Striving for reduction of production costs and constraints on natural resources cause the use waste materials as substitutes traditional raw to become increasingly important. Dynamic development sewerage systems sewage treatment plants observed over recent years leads increase mass produced sludge. According Waste Law, municipal sludge can be used if it is properly stabilized, e.g., through thermal processing. This process results in significant quantities fly ash which must utilized. The...

Abstract This paper analyzes the distribution of internal forces and displacements embedded retaining wall in Quaternary deposits Tertiary clays. Calculations have been based on Subgrade Reaction Method (SRM) for two different types earth pressure behind (active, at-rest) order to show differences resulting from adopting limit values. An algorithm calculation “cantilever wall” using Mathematica program was proposed.

Abstract Influence of fly-ashes on properties ordinary concretes. Care the environment in accordance with principles sustainable development introduces possibility and need for waste recycling. The construction building materials industry has greatest potential reuse waste. article presents results investigations selected (consistency, water absorbability, compressive strength tensile after 28 56 days curing, depth penetration) concretes containing - calcareous siliceous ash − their...

The paper presents results of investigations influence major head losses on exploitation properties water supply pipes after 30-year exploitation. tested materials were cast-iron with the internal diameter 150 mm. A flowability drop coefficient ηt average value 0.45 was determined. Using measured values pressure difference Δp determined absolute roughness walls exploitation, which referred to new pipelines. for exploited equal k = 27.6 mm, whereas ones it significantly lower and 0.9...

The objective of this experimental study was to examine whether an assisting layer lightweight expanded clay aggregate (LECA) the granulation 1–4 mm, introduced into a subsoil, is able improve efficiency removal total nitrogen and phosphorus from domestic wastewater. In investigations, 0.10 0.20 m thick LECA applied. It has been observed that effectiveness suspended solids (TSS), wastewater as well level biochemical oxygen demand ( BOD 5) chemical COD) in accordance with Polish standards on...

The paper presents results of investigation the local resistance coefficient ζ in welded polypropylene T-junctions with internal diameter 13.2 mm. investigations were performed on an independently constructed test rig. scope encompassed T-junctions, which (1) properly warmed up and pressed, (2) poorly or (3) excessively pressed. coefficients determined by measurements according to standard PN-EN 1267:2012(Designation Polish Standard) compared those use nomograms recommended for designing...

The reduction of carbon dioxide emissions, introduced by the European Union, opened possibility conducting experimental works on a new generation materials—ecological and environmentally friendly ones. Such materials include those which combine raw natural resources with waste subject to disposal. objective performed investigations was an assessment influence fly ashes selected parameters building materials. paper proposes method enrichment clay ash, would lead neutralization heavy metals in...

Model investigations of wastewater purification were carried out in a medium sand bed with an assisting natural clinoptilolite layer 0.10 or 0.25 m thick.The effectiveness related to basic qualitative parameters was accordance the Polish standards on sewage disposal into grounds and surface water.Medium soil thick showed average removal efficiency regarding TSS higher by 3.3%, total nitrogen 29.3%, phosphorus 25.9%, reduction BOD5 1.1% COD 15.9% than that thinner layer.The confirmed...

The Rayleigh's method can be used to determine the first natural frequency of bars (beams or posts) with non-uniform cross-section.The authors have analysed slender made an elastic material and having shape a solid revolution: curvilinear truncated cone conical pipe.It has been assumed that bar axis deflected during vibrations beam by static constant continuous load.The applied in paper aim free (transverse) posts formed as cantilever hollow generatrix being parabola which is convex relation...

The study presents building materials or systems which are described in the literature and regarded as ecological, results of investigations on material construction solutions dwelling houses selected organic farms north-east Mazovia prospecting for influence farming houses. To prepare paper, ecological was used, visits at were made (collection documentation conversations with owners) statistical data Ostrołęka Maków counties analysed. showed that there no connections between existing these...

Care of the environment in accordance with principles sustainable development introduces possibility and need for waste recycling.Construction building industries have greatest potential reuse waste.The article presents results investigations cement mortars -tests compressive tensile strength after 28 56 days curing -for normative containing fly ashescalcareous siliceous ash -in their composition.To make samples, Portland CEM I 32,5 R, 42,5R natural aggregate graining 0-2 mm were...

The paper presents the results of studies on local resistance coefficients (ζ). study used pipe aerators with filling made according to Polish patent PL235924. hydraulic investigations were performed in real working conditions a water treatment plant testing rig built Scientific and Research Water Station Warsaw University Life Sciences (SGGW). investigation encompassed two plastic an internal diameter 101.6 147.6 mm steel Białecki rings 12 25 diameter. Measurements pressure difference (Δp)...

Abstract This article investigates the degradation of stiffness in high and standard-strength concrete due to influence repeated loading considers non-linear behavior arising from localized or natural defects concrete. The also refers models existing literature that evaluate characteristics by enhancing its physicochemical properties through application synthetic fibers. impact service load, which influences change stiffness, is illustrated using elastic–plastic model. model concrete,...

The European Union’s initiative to reduce carbon dioxide emissions has paved the way for exploration of innovative building materials that are environmentally friendly and meet all requirements durability strength. These criteria can be met by combining natural resources used in production with waste would otherwise landfilled, having a negative impact on environment. This study focuses such presents results recent research conducted at Warsaw University Life Sciences. aim was develop new...

This paper presents new approximate formulas for evaluating the maximum displacements of an elastic layer loaded on a circular or square area. The are based exact solutions theory elasticity half-space and offer simple quick way to obtain values displacements. novelty these lies in their ease application while maintaining high accuracy with respect solution elasticity, which can make them useful engineering practice allows efficient estimation displacement without need complex numerical...

The paper presents a technology for strengthening the internal surface of bore cannon and tank barrels through plastic deformation. It is recommended to carry out treatment in two stages: firstly, ball peening inner working barrel with hardened steel balls; secondly, application heat-resistant hard alloy coating using deforming bodies made VK6 alloy. was established that as result this treatment, residual compressive stresses are formed near-surface layer material, its microhardness...

The objective of the undertaken investigations was to examine in laboratory conditions whether an introduction assisting opoka rock layer with granulation 1-6 mm into ground improves removal efficiency nitrogen and phosphorus compounds from domestic sewage.The performed concerned supporting sewage a home treatment plant under infiltration drainage.The model wastewater purification were carried out medium sand bed assisting, 0.10 0.20 m thick layer.The effectiveness related basic qualitative...

In the mechanics of concrete constructions, one distinguishes between residual and elastic strains. Cyclic loadings evoke changes mainly in strains; however, total strains are decided by sum The knowledge ratio allows to predict deformations a construction assuming it is made from an ideally material. This paper presents effect load level at values for beams high-strength concretes subjected bending. investigations showed that share these differed lower classes. were cyclically loaded...