Refine
Year of publication
Institute
- Fachbereich Bauingenieurwesen (712) (remove)
Document Type
- Article (334)
- Conference Proceeding (139)
- Book (118)
- Part of a Book (86)
- Report (19)
- Doctoral Thesis (6)
- Contribution to a Periodical (2)
- Course Material (2)
- Patent (2)
- Working Paper (2)
Keywords
- Kanalisation (4)
- Wasserbau (4)
- Wasserwirtschaft (4)
- metal structure (4)
- steel (4)
- Aachen / Fachhochschule Aachen / Fachbereich Bauingenieurwesen (3)
- Absolvententreffen (3)
- Alfha.net (3)
- Alumni (3)
- Fließgewässer (3)
Das kompakte Nachschlagewerk für den konstruktiven Ingenieurbau wurde für den täglichen Gebrauch auf der Baustelle konzipiert und stellt alle für die rechnerische Nachweisführung und Konstruktion von Bauteilen wichtigsten Angaben in Form einer Formelsammlung mit Nachweishilfen zur Verfügung. Der Inhalt wurde auf Basis der neuen Eurocodes komplett aktualisiert und erweitert. Die 4. Auflage enthält in bewährter Manier eine umfangreiche Formelsammlung, Querschnittswerte und Bemessungshilfen zu den Bereichen Lastannahmen, Holzbau, Mauerwerksbau, Stahlbau, Stahlbetonbau, Geotechnik sowie statische Hinweise. Farbiges Papier erleichtert den zielgerichteten Zugriff auf die einzelnen Fachgebiete.
ETHICS is concerned with evaluating, measuring and making improvements in the thermal and energy performance of steel-clad and steel-framed buildings. It addresses basic building physics performance at a laboratory and full-scale level, and the preparation of design guidance for commercial, industrial and residential buildings. It includes the development of design tools to assist users in assessing whole-building performance, and calibrates these tools against whole-building measurements, which will be obtained from this research. Opportunities for renewable energy and other energy-saving features will be assessed. This project focuses on objectives that are of particular interest for the design of new steel constructions regarding energy efficiency. ETHICS investigates the as-built performance by on-site tests regarding air tightness and heat transfer properties of the building envelope and by monitoring the energy consumption and thermal comfort of selected up-to-date steel buildings. As energy efficiency is a key requirement for design and construction of buildings in the future, this project provides well-founded scientific data, which prove the high energy performance of current steel constructions and work out details for further improvements to maintain and extend the position of steel products in the construction sector.
Mehrwert
(2014)
Geologisch-geotechnischer Planungsprozess von Tunnelbauten mit Schwerpunkt tiefliegender Tunnel
(2014)
Beton
(2015)
Wendehorst bautechnische Zahlentafeln / hrsg. von Ulrich Vismann. Ernst Biener ... - 35. Aufl.
(2015)
Siedlungswasserwirtschaft
(2015)
Abfallwirtschaft
(2015)
Wendehorst Beispiele aus der Baupraxis / Ulrich Vismann (Hrsg.). - 5., durchges. und aktualis. Aufl.
(2015)
Stahlbetonbau
(2015)
Das Kapitel Stahlbetonbau besteht aus einer Formelsammlung (Teil A) sowie einem Praxisbeispiel (Teil B). In dem Praxisbeispiel werden exemplarisch die erforderlichen Rechenschritte und Nachweise zur Bemessung im GZT und GZG nach Eurocode 2 [1] vorgestellt. Die Hinweise im Text beziehen sich, soweit nicht explizit erwähnt, auf Wendehorst, Bautechnische Zahlentafeln, 35. Auflage, „Stahlbeton- und Spannbetonbau nach Eurocode 2“ [2]. Die zum Praxisbeispiel zugehörigen Konstruktions- und Bewehrungszeichnungen stehen im Onlineportal zu diesem Buch zum kostenlosen Download bereit (siehe unter www.springer.com).
Geotechnik
(2015)
Siedlungswasserwirtschaft
(2015)
Nachfolgende Ausführungen und Berechnungsbeispiele beziehen sich auf Kapitel 19 Siedlungswasserwirtschaft im „Wendehorst: Bautechnische Zahlentafeln 35. Auflage 2015“ (abgekürzt: BZ). Für den Bau von Anlagen der Siedlungswasserwirtschaft sind ebenso die Grundlagen der Hydraulik zu berücksichtigen. Aus diesem Grunde sind auch die entsprechenden Ausführungen zur Hydraulik zu beachten.
Abfallwirtschaft
(2015)
Block ramps are ecologically oriented drop structures with adequate energy dissipation and partially moderate flow velocities. A special case is given with crossbar block ramps, where the upstream and downstream level difference is reduced by a series of basins. To prevent the total structure from failing, the stability of single boulders within the crossbars and the bed material in between must be guaranteed. The present paper addresses the stability of bed material and scour development for various flow regimes. Any bed material erosion may affect the stability of the crossbar boulders, which in turn can result in major damages of the ramp. Therefore new design approaches are developed to choose an appropriate bed material size and to avoid failures of crossbar block ramp structures.
Zero energy solutions for multifunctional steel intensive commercial buildings (ZEMUSIC) - EUR 27627
(2015)
The broad commercial objective of this project was the sustainable value creation in steel building technology by addressing the ways in which significant energy reductions can be made in the operation phase of multi-storey commercial buildings. A review on energy efficient commercial buildings in Europe has been carried out consisting of several case studies from different countries. The project included development of zero-energy concepts for reducing energy demand as well as concepts for heating, cooling and ventilation systems by utilising renewable energy sources in three different climates. Also alternative structural frame solutions were developed and analyzed in respect of structural and MEP (mechanical, electrical and plumbing solutions) features. An innovative long span floor system with integrated MEP routings promises a cost effective alternative for sophisticated ventilation distribution and radiant heating and cooling systems, allowing for high energy efficiency and high quality interior climate. The report includes also review of best architectural practices for integrated renewable energy solutions including different design strategies for building facades of zero energy buildings. Interesting results and design basis are also presented for steel energy pile concept, where structural foundation piles are utilized for ground energy harvesting. Life cycle cost calculations for near zero energy office building based on developed technologies show that a near zero energy construction is also profitable. The results and work methods of the project have been summarized in the form of design guidance that offers designers the knowledge gained in a form that can be easily understood.
"Holzbau kompakt" wurde sowohl für Studierende als auch Praktiker konzipiert und beschränkt sich nicht auf reine Holzbauaufgaben, sondern setzt sich ggf. auch mit der Tragwerkslehre auseinander. Die Neuauflage basiert auf dem Eurocode 5 und berücksichtigt zahlreiche neue Erkenntnisse aus Forschung und praxisnaher Entwicklung. Neben den Grundlagen der Bemessung, der Baustoffe, der Dauerhaftigkeit und des Brandschutzes konzentriert sich das Grundlagenwerk besonders auf das Konstruieren mit Holz und Holzwerkstoffen, anschaulich dargestellt an sehr ausführlichen Beispielen für Wohnhaus und Hallentragwerk.
Numerische Strömungssimulationen von Fließgewässern : Praxisanwendungen und zukünftige Entwicklungen
(2015)
Hydraulic modeling is the classical approach to investigate and describe complex fluid motion. Many empirical formulas in the literature used for the hydraulic design of river training measures and structures have been developed using experimental data from the laboratory. Although computer capacities have increased to a high level which allows to run complex numerical simulations on standard workstation nowadays, non-standard design of structures may still raise the need to perform physical model investigations. These investigations deliver insight into details of flow patterns and the effect of varying boundary conditions. Data from hydraulic model tests may be used for calibration of numerical models as well. As the field of hydraulic modeling is very complex, this chapter intends to give a short overview on capacities and limits of hydraulic modeling in regard to river flows and hydraulic structures only. The reader shall get a first idea of modeling principles and basic considerations. More detailed information can be found in the references.
Stahlbau
(2015)
Es ist zwischen Stählen bis S460 und solchen mit höherer Streckgrenze zu unterscheiden. Stähle bis S460 sind auch für die plastische Tragwerksberechnung nach dem Fließgelenkverfahren zugelassen. Bei Stählen oberhalb S460 bis S700 ist neben der elastischen eine nichtlineare plastische Tragwerksberechnung unter Berücksichtigung von Teilplastizierungen von Bauteilen in Fließzonen möglich.
Stahlbau
(2015)
A comparative performance analysis of the CFD platforms OpenFOAM and FLOW-3D is presented, focusing on a 3D swirling turbulent flow: a steady hydraulic jump at low Reynolds number. Turbulence is treated using RANS approach RNG k-ε. A Volume Of Fluid (VOF) method is used to track the air–water interface, consequently aeration is modeled using an Eulerian–Eulerian approach. Structured meshes of cubic elements are used to discretize the channel geometry. The numerical model accuracy is assessed comparing representative hydraulic jump variables (sequent depth ratio, roller length, mean velocity profiles, velocity decay or free surface profile) to experimental data. The model results are also compared to previous studies to broaden the result validation. Both codes reproduced the phenomenon under study concurring with experimental data, although special care must be taken when swirling flows occur. Both models can be used to reproduce the hydraulic performance of energy dissipation structures at low Reynolds numbers.
Self-aeration is traditionally explained by the water turbulent boundary layer outer edge intersection with the free surface. This paper presents a discussion on the commonly accepted hypothesis behind the computation of the critical point of self-aeration in spillway flows and a new formulation is proposed based on the existence of a developing air flow over the free surface. Upstream of the inception point of self-aeration, some surface roughening has been often reported in previous studies which consequently implies some entrapped air transport and air–water flows coupling. Such air flow is proven in this study by presenting measured air velocities and computing the air boundary layer thickness for a 1V:2H smooth chute flow. Additionally, the growth rate of free surface waves has been analysed by means of Ultrasonic Sensors measurements, obtaining also the entrapped air concentration. High-speed camera imaging has been used for qualitative study of the flow perturbations.