This research focuses on the lateral stability (LS) of a longitudinally assembled girder (AG), constructed for both economic and constructional purposes. The AG features central precast prestressed concrete (PPC) beam, 34.175 meters long, extended by two reinforced (PRC) beams, each 2.63 connected bolted joints. A gap between joints was filled with high-strength grout to efficiently transfer compressive stresses. experimental study considered types imperfections: initial imperfections in...

Welded T-joints are commonly used in manufacturing of stiffened panels or crossbeams. However, welding web-to-flange joint induces residual stresses and distortions resulting significant challenges during both service. These issues can ultimately impact the structural performance, including fatigue stability, lifetime weldment. The purpose current paper is determining distribution magnitude manufacturing-induced longitudinal welded T-joints. Influence hot rolling, thermal cutting,...

Orthotropic steel decks are widely used in the bridge engineering practice due to light weight, high performance and ultimate strength-to-weight ratio. Purpose of current paper is developing first residual stress model for orthotropic (OSDs) with U-shaped stiffeners based on measurement results. The proposed simplified valid OSDs single-bevel butt welds, manufactured from grade up S355. Distribution magnitude manufacturing-induced stresses hot rolling, thermal cutting, cold-forming, welding,...

Several breakthroughs have appeared in different applications due to deep learning which can be applied Bridge Weigh-In-Motion (BWIM) systems as well. Therefore, should examined BWIM systems. However, some learning-based solutions already been proposed the international literature, they cannot compared static methods because available datasets are not appropriate train and test artificial neural networks. In addition, numerous other aspects considered during tests. current paper, a...

Abstract Part I of this paper introduces an experimental programme carried out on RC members with thick‐walled hollow circular cross‐sections to study their behaviour under combined bending and shear. The looked at ultimate resistance propagation characteristic crack pattern as well the shape failure sections a function wall thickness, amount longitudinal transverse reinforcement, shear span axial force. Test results were used verify newly developed calculation model describing investigated...

The aim of the research was to characterize concrete mixtures for spun-cast and determine relationship between compacting ratio manner segregation. In 23 specimens 9 different with low w/c were tested. Investigated parameters included w/c, spinning speed, duration, properties aggregate. strength in outer, middle inner region element vibrated cube assessed by testing drilled cores. optimal energy caused defined mixtures. Statistical regression functions depending on above change wall element.

Abstract Part II analyses the applicability of current shear design models for RC members with a hollow circular cross‐section on basis experimental results introduced in I this paper. A new calculation model is proposed which assigns contribution concrete zone compression to resistance. The takes into account how flexural and reinforcement, load‐to‐support distance shape affect based analysis potential failure sections subjected bending shear, applies compatibility criterion that considers...

In this study, the coupled shear‐bending behavior of reinforced concrete ( RC ) beams was investigated. an experimental 12 specimens were tested under close to constant shear span‐depth ratios but with variable flexural and reinforcement ratios. The primary focus analyze effect inclination failure section aggregate interlock on resistance. Propagation characteristic crack pattern, shape, as well relative movements faces studied. One conventional specimen 11 special members, where eliminated...

The aim of the research was to determine relationship between Schmidt N rebound index and compressive strength spun-cast concrete elements with low water-cement (w/c) ratio. In 22 specimens 8 different mixtures were tested. investigated mixture parameters included w/c ratio, compaction intensity type aggregate. in outer, middle inner region element vibrated cube assessed by testing drilled cores after non-destructive specimens. Statistical regression functions have been defined for...

Deformations of bottom flanges in the vicinity bridge bearings, i.e., bearing areas, due to manufacturing and loading can result serious problems service life damages superstructures structural bearings coming from nonuniform stress distribution. The paper focuses on out-of-flatness measurement areas using Coordinate Measuring Machine (CMM) typical steel composite bridges having box open cross-sections. Advanced simulations are also carried out addition site measurements analyse...

In this paper the vortex induced vibration of a cable-stayed bridge with main span 252 m was studied at construction stages. Structural FEM and aerodynamic CFD models were made in order to calculate amplitude slender structure. The damping pure steel structure effect tuned mass dampers measured through on-site tests. Based on validated structural dynamics model simulated parameters, amplitudes evaluated compared monitoring data gained from accelerometers wind sensors attached stiffening...

Over the past decade, use of fiber-reinforced polymers (FRPs) as bonding agents to enhance and rehabilitate concrete structures has become widespread. Despite demonstrated effectiveness this approach in numerous experimental studies, there are still concerns about time expense required for these investigations. To address issue, The objective study was investigate how carbon polymer (CFRP) reinforcement affects bending performance one-way reinforced slabs using advanced finite element...

Jelen cikk célja, hogy áttekintse a síklemezek Eurocode szerinti átszúródási méretezésekor tervező rendelkezésére álló módszereket. Említést teszünk kézi módszerekről, végeselemes szoftverekbe integrált méretező modulokról és az elemeket gyártó cégek szoftvereiről. Röviden bemutatjuk egyes eszközök hátterében futó algoritmusok fő jellemzőit. Ezzel magyarázatot adunk eredményekben mutatkozó kisebb-nagyobb eltérésekre.