Zum Querkraftwiderstand von Stahl- und Spannbetonträgern mit dünnen Stegen

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A Finite Element Model produced from a real WC-10wt.%Co sample is used to study the mechanical behavior of cemented carbides in compression tests. The model is obtained by slicing the sample by Focused Ion Beam and reconstructing it. This model is used to ...

This paper discusses quasi-static cyclic tests conducted on 1:30-scale physical models of RC exterior and knee beam-column joints, with additively manufactured [three-dimensional (3D)-printed] reinforcement cages. These models can be used for centrifuge mo ...

he rehabilitation of existing bridges should always be the first investigated solution because it usually reduces construction costs, environmental impacts, and traffic disruption. Nonetheless, bridges are too often replaced due to the lack of effective st ...

Calcined coal gangue (CCG) exhibits promising application potential in limestone-cement binary binders. However, the activity of CCG would possibly be weakened due to the particle agglomeration after calcination. In the present research, we tried to overco ...

Concrete use in buildings significantly contributes to global CO2 emissions. Floor systems constitute a major portion of the concrete in building structures, making them a prime target for material reduction. Conventional design methods to calculate streng ...

Codes of practice can be overly conservative, particularly for the shear resistance of reinforced concrete beams with shear reinforcement when large loads act close to supports. This thesis addresses the topic by proposing a refined design approach based o ...

Water is ubiquitous within the pore space of rocks and has been shown to affect their physical and mechanical behaviour. Indeed, water can act on the rock strength via mechanical (i.e., reducing the effective stresses) or chemical effects (e.g., mineral di ...

Reinforced concrete flat slabs consist of a continuous, thin concrete plate that rests on a grid of columns. The supporting surface of the columns is very small compared to the floor plan dimensions, leading to concentrations of shear forces near the colum ...

In this paper, we present a new parameterization and optimization procedure for minimizing the weight of ribbed plates. The primary goal is to reduce embodied CO2 in concrete floors as part of the effort to diminish the carbon footprint of the construction ...

While understanding the shear strength of stone masonry structures is important for the design and the mainte- nance, we still lack computational tools for predicting the strength as a function of the stone layout. Here we implement an end-to-end image bas ...

Bending-active elastica beam is a structural configuration that is based on the elastic deformation of an initially straight beam. This deformation occurs when horizontal displacements are applied to a sliding support, causing the beam to bend into an arch ...

In typical reinforced concrete design, reinforcement is designed to carry axial forces, but it can also resist transversal forces by dowel action. This is usually neglected for simplicity's sake in the design phase, but it can be accounted for either expli ...

The study explores an original idea that responds to the urgent need to reduce the detrimental environmental impacts of load-bearing floor construction in new buildings by reusing saw-cut reinforced concrete (RC) pieces salvaged from soon-to-be demolished ...

Most codes of practice adopt a semi probabilistic design approach for the dimensioning and assessment of structures. Accordingly, structural safety is ensured by performing limit state verifications using design values determined with adequately calibrated ...

Several boreholes were drilled for site comparison of a deep geological repository (DGR) in Northern Switzerland. The main target of the exploration program was the >100m thick Opalinus Clay, the designated host rock encountered at approximately 450 to 100 ...

In this thesis, we conduct a comprehensive investigation into structural instabilities of both elastic and magneto-elastic beams and shells, resulting in a creative proposal to design a programmable braille reader. Methodologically, we combine numerical si ...

Estimating the stress of reinforcing bars and its variations in service conditions can be useful to determine the reserve capacity of structures or to assess the risk of fatigue in the reinforcement. This paper investigates the use crack width measurements ...

Bond between reinforcing bars and concrete has been the focus of extensive research over the last century. This is well-justified as the functioning of reinforced concrete intimately depends on the interaction between rebar and concrete, as for example cra ...

Fiber-polymer composites consist of a polymer matrix and reinforcing fibers made of various materials. These composites exhibit exceptional properties, such as a high strength-to-weight ratio and excellent corrosion resistance, which has led to their incre ...

Existing concrete buildings should be retained for as long as possible to reduce the environmental burden of demolition and new construction. However, when urban pressure makes demolition unavoidable, salvaging and reusing concrete elements elsewhere in ne ...

Zum Querkraftwiderstand von Stahl- und Spannbetonträgern mit dünnen Stegen

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Cyclic loading of WC-Ni by FEM with a realistic 3D morphology

Small-Scale Physical Modeling of Reinforced Concrete Joints Using Additively Manufactured Reinforcement

Transforming the Static System of Prestressed Concrete Bridges Using UHPFRC

Investigating the ball-milled calcined coal gangue on the hydration of limestone blended cement

A Design Method in Grasshopper for Efficient Material Use in Concrete Slabs

Experimental and analytical investigation of shear-reinforced concrete and dowel action

Water weakening and the compressive brittle strength of carbonates: Influence of fracture toughness and static friction

Shear and steel-fibre reinforcement for the punching resistance of flat slabs at internal and edge columns

Mesh-based topology, shape and sizing optimization of ribbed plates

Micro modeling of irregular stone masonry walls using mathematical programming

Short-term behavior of glass fiber-polymer composite bending-active elastica beam under service load application

Experimental investigation of dowel action in reinforcing bars using refined measurements

Reuse of cut concrete slabs in new buildings for circular ultra-low-carbon floor designs

Influence of model uncertainty and long term deformations in action effects calculation in reinforced concrete structures

Insights from an extensive triaxial testing campaign on a shale for comparative site characterization of a deep geological repository

Instabilities in Elastic and Magneto-Elastic Beams and Shells: from Shell Buckling to the Design of a Programmable Braille Reader

Estimation of the bar stress based on crack width measurements in reinforced concrete structures

Contributions to rebar-to-concrete interaction and its structural implications for design and monitoring applications

Two-dimensional quasi-static delamination in composite laminates under Mode-I and Mode-II conditions

A concrete answer for circular construction: three prototypes reusing saw-cut elements