Cross-Sectional Analysis Of The Mechanical And Physical Properties Of Spruce Foundation Piles: An investigative analysis of moisture content, density, compressive strength, and modulus of elasticity across the cross-section of spruce foundation piles, with an emphasis on the predictive proficiency of micro-drilling methods

Summary<br/><br/>Numerous ancient historical constructions worldwide depend primarily on an extensive array of wooden foundation piles, as they are subject to loading conditions governed by the superstructure above. Wooden foundations transfer loads through a combination of compression and lateral resistance. The inherent strength of wood...

Dynamic Interaction Between Event Deck Structures and a Jumping Crowd: The influence of human-structure interaction on impact force peaks and internal stresses

Human-induced rhythmic loading is an increasingly critical aspect in the design process of civil engineering structures such as sports stadiums and floors accommodating gym and aerobic classes. There are two main reasons for this trend. First, structures are becoming more slender with improvements in materials and construction techniques and...

Withdrawal strength of self-tapping screws in tropical hardwood

Self-tapping screws are popular tools used in timber engineering. The axial withdrawal strength of self-tapping screws could be used in timber structures as an active or passive application. An example of an active application is the use as a fastener in wall to wall connections. An example of a passive application is the use as reinforcement...

Experimental and numerical validation of an innovative OSD strengthening with a bonded and bolted plate

For the renovation of the Suurhoff bridge, Arup decided to design and propose a new, innovative strengthening scheme, which improves the fatigue performance of the bridge deck and extends the design life of the bridge by at least 15 years. In this strengthening scheme, a steel plate is placed on top of the existing deck plate with a layer of...

Timber and Steel Railway Bridge

Timber usage in construction works has increased over the past years due to its better environmental performance. Applying timber elements instead of steel or concrete decreases the emissions impact of the built environment. Architect firm ZJA and Iv-consult are interested in investigating a timber railway bridge as part of the Norwegian...

A software-based optimization for design of steel halls: For steel halls with open sections and bolted end-plate connections

To optimize steel halls for this thesis, an optimization tool is created. This tool creates a parametric model and optimizes this model to its costs. The connections in the tool are limited to beam-column connections. <br/>The optimization starts with the input variables of the model, the most important input variable is the type of the beam...

Fatigue assessment of rail track detail on movable bridge in Estonia based on 2D/3D Finite Element Modelling using hot-spot stresses

There are several methods to perform fatigue assessment as described by the Eurocode 3 and the International Institute of Welding (IIW). The codes establish the relation between stress ranges and their respective number of cycles until failure of the detail. This method is called S-N curves, however this is based mainly on nominal stresses. A...

Optimising production costs of steel trusses: A computational approach of designing cost-effective steel trusses with welded connections

The building industry is fragmented. In the case of steel structures, two parties are involved in the design. The engineering firm designs the structure, and at a later phase the steel contractor designs all the detailing. This fragmentation restrict the possibilities of creating a cost optimal design. Currently, engineers often optimise on...

Mechanical Behaviour of Transparent Structural Silicone Adhesive Laminated Connections under Monotonic and Cyclic Loading

Transparency and translucency are essential features of modern architecture. Glass products have been widely used in facade applications and recently their use has expanded to the load-bearing structure due their large in-plane compressive strength. However, the fragile nature of glass requires special treatment and attention to detail to avoid...