The rapid development of geo-referenced information changed the way on how we access and interlink data. Smartphones as enabling devices for information access are main driving factor. Thus, the hash key to information is the actual position registered via camera and sensory of the mobile device. A rising technology in this context is Augmented Reality (AR) as its fuses the real world captured with the smartphone camera with geo-referenced data. The technological building blocks analyse the intrinsic sensor data (camera, GPS, inertial) to derive a detailed pose of the smartphone aiming to align geo-referenced information to our real environment. In particular, this is interesting to applications where 3D models are used in planning and organization processes as, e.g., facility management. Here, Building Information Models (BIM) were established in order to hold "as built" information, but also to manage the vast amount of additional information coming with the design, s uch as building components, properties, maintenance logs, documentation, etc. One challenge is to enable stakeholders involved in the overall building lifecycle to get mobile access to the management system within on-site inspections and to automatise feedback of newly generated information into the BIM. This paper describes a new AR framework that offers on-site access to BIM information and user centric annotation mechanism

Laminated safety glass (LSG) consists of two or more glass panes connected with interlayers of polyvinyl butyral (PVB). LSG is primarily used when a load-carrying capacity is needed after the breakage of a glass pane, e.g., for over-head glazing, glass to prevent people from falling or for glass fins.The mechanical properties of the PVB interlayer depend mainly on temperature and load duration. At low temperatures and short load duration the rigidity of the shear bond between the glass panes is higher than at high temperatures and long load duration. To determine the influences that govern the structural behaviour of LSG the mechanical behaviour of the structural elements has to be first analysed. GlassGlass, in almost all chemical compositions, behaves below the glass transition temperature (about 560°C for soda-lime-silicia glass) as an elastic solid until brittle fracture occurs when the failure strength is exceeded. For use in structural engineering glass can be regarded as a homogenous and isotropic material. Polyvinyl ButyralPVB is a member of the group of amorphous thermoplastic polymers and shows viscoelastic behaviour in all states of matter below disintegration at a temperature of about 140°C to 200°C. The viscoelastic behaviour depends highly on the thermodynamic state of the material as shown in a schematic graph in Fig. 1, which displays the change in shear or elastic modulus over temperature. A sufficient supply of heat can transform the chainlike molecule structure of the polymer from a rigid state to a deformable or even liquid state. This range is marked by the so-called glass-transition temperature T G of PVB and the melting temperature T M . CompositeA combination of an ideal elastic material like glass and a polymer material like PVB, which can display either elastic, viscoelastic or viscous behaviour depending on various parameters, raises the question of the structural behaviour of the composite. The structural behaviour of the laminate is determined by the ability of the interlayer to transfer shear between the glass panes. Therefore all parameters that influence the shear transfer, which is represented by the shear modulus, act on the composite behaviour and thus on the structural behaviour of the laminate. This depends on the temperature, the load duration, the amount of load, the load rate and the durability of the interlayer and the adhesion between interlayer and glass. A reduction of the number of these parameters (e.g., load rate, amount of load) is only possible if the structural application is limited in such a way (e.g., small deformations) that a linear viscoelastic behaviour can be assumed. Testing of Laminated Safety GlassTo analyse the influence of temperature and load duration on the structural behaviour of the laminate, a test program, sponsored by the German Research Foundation (DFG), was carried out. Laminated glass panes of different spans (1,0 m and 2,0 m), different thickness (2 × 10 mm and 2 × 4 mm) and a constant width of 0,36 m were tested in a four-point bending tes...

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Figure 1. With MeshLab exported model of an old statue visualized via X3DOM in the same ABSTRACT:Virtual Museums (VM) are a new model of communication that aims at creating a personalized, immersive, and interactive way to enhance our understanding of the world around us. The term "VM" is a short-cut that comprehends various types of digital creations. One of the carriers for the communication of the virtual heritage at future internet level as de-facto standard is browser front-ends presenting the content and assets of museums. A major driving technology for the documentation and presentation of heritage driven media is real-time 3D content, thus imposing new strategies for a web inclusion. 3D content must become a first class web media that can be created, modified, and shared in the same way as text, images, audio and video are handled on the web right now. A new integration model based on a DOM integration into the web browsers" architecture opens up new possibilities for declarative 3D content on the web and paves the way for new application scenarios for the virtual heritage at future internet level. With special regards to the X3DOM project as enabling technology for declarative 3D in HTML, this paper describes application scenarios and analyses its technological requirements for an efficient presentation and manipulation of virtual heritage assets on the web.

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