Reinforced Concrete Structures

On-Site Impedance Analysis for Corrosion Assessment of RC Structures

by Chris Goodier

Design and use of self-compacting concrete

by Chris Goodier

Assessing the long term benefits of Impressed Current Cathodic Protection

by Chris Goodier

Nonlinear Analysis of Large Concrete Structures using a Finite Element Shell Model

by Viktor Sigrist

co-authored with Jens Wasner

published in the Proceedings of the 4th International Conference SEMC 2010, 6.-8. Sept. 2010, Cape Town, South Africa.

A new tension stiffening approach for structural concrete is presented and applied to flexural members. Cracking and... more A new tension stiffening approach for structural concrete is presented and applied to flexural members. Cracking and deformation behaviour in the tension zone is accounted for with eference to the Tension Chord Model. With the choice of tensile and residual concrete strength values the interaction between
concrete and reinforcement as well as the influences of hrinkage restraint and random strength distribution can be considered. The proposed model is compared to test results of two-span slab strips.

Picaresque picturesque or decoy decay

by Karolina Szynalska

Dudley Zoo by Tecton and Berthold Lubetkin

On Tuesday 25 November 1947 Nikolaus Pevsner gave a lecture before the Royal Institute of British Architects on the... more On Tuesday 25 November 1947 Nikolaus Pevsner gave a lecture before the Royal Institute of British Architects on the Picturesque in Architecture. He included such a variety of buildings that John Summerson, during the subsequent discussion, proposed the word picturesque could be omitted. He thought the word had a hopelessly imprecise meaning’. Pevsner’s picturesque architecture was simply architecture.

Picturesque is an ambiguous term. It is part of the vocabulary of English Romantic painting. In architecture it refers to abandoned ruins, purpose built ruins, flamboyant garden follies, and the new urban leisure pursuit – urbexing (the art of exploring derelict buildings). John Piper believed that an appreciation of the picturesque is not only a sophisticated pleasure, but a matter of public importance. It symbolizes man’s relation to nature. It also inspires us to reflect upon the subjects of order and control. It is a representation of freedom. It provides us with aesthetic delight and intellectual
excitement.

It is my contention that the picturesque and Modernism have a lot in common. Both derived from painting; they exploit the representations of purely abstract concepts. Both are poetic theories. They claim to be rational, but – when carefully assessed – they seem absurd.
I will speculate about different ways of seeing and understanding of the picturesque and Modernist buildings in a landscape settings; Lubetkin’s zoos. The multiple narratives will be inspired by picturesque-related concepts from outside of art and architectural domain such as Darwin’s Thinking Path and the Savannah Principle.

ATENA Brochure

by Martin Berka

Pilecap Brochure

by Martin Berka

Carrefour

by Martin Berka

Cracking of historical buildings

by Martin Berka

ATENA Latest Newsletter, March 2012

by Martin Berka

Investigation on seismic performance of RC moment frame buildings through nonlinear static and dynamic analyses. (In Persian)

by Farshad Hashemi Rezvani

In: Proceedings of the 6th National Congress on Civil Engineering (6NCCE), Semnan, Iran 2011.

امروزه در مناطق لرزه خیز ، طراحی بر اساس سطوح عملکرد از اهمیت خاصی برخورداراست . هدف اصلی این تحقیق بررسی سطح عملکرد... more امروزه در مناطق لرزه خیز ، طراحی بر اساس سطوح عملکرد از اهمیت خاصی برخورداراست . هدف اصلی این تحقیق بررسی سطح عملکرد لرزه ای سازه ها بر اساس آیین نامه بهسازی لرزه ای ایران و FEMA-356 در ساختمانهای بتن مسلح با قاب خمشی بر اساس مباحث ششم و نهم از مقررات ملی ساختمان ایران و با در نظر گرفتن ضوابط لرزه ای آیین نامه 2800 می باشد. به این منظور مدل سه بعدی اجزا محدود ساختمانهای 3، 6 و 9 طبقه ایجاد شده و مطابق آیین نامه های مذکور خصوصیات مفاصل غیرخطی به المانهای تیر و ستون اختصاص یافته است. تحلیل استاتیکی غیرخطی (Pushover) با استفاده از دو ا لگوی بارگذاری جانبی با توزیع مثلثی و یکنواخت و هم چنین تحلیل دینامیکی خطی تاریخچه زمانی براساس سه رکورد زلزله روی مدل ها انجام گرفته است. نتایج تحلیل ، حاکی از آنست که به طور کلی علیرغم اینکه در الگوی بارگذاری یکنواخت برش پایه فراتر از الگوی مثلثی است ولی در این حالت تعداد مفاصل غیرخطی کمتری در سازه تشکیل می شود. همچنین ملاحظه گردید که با افزایش تعداد طبقات اختلاف بین سختی دینامیکی خطی و سختی حاصل از تحلیل استاتیکی غیر خطی در محدوده الاستیک افزایش یافته است و برعکس در محدوده غیر الاستیک کاهش یافته است.

Modelling shell structures with ATENA

by Martin Berka

Nuclear Containment Cracking Analysis

by Martin Berka

SARA

by Martin Berka

ATENA Tunnels

by Martin Berka

ATENA Analysis of Bridges Structures

by Martin Berka

ATENA specification analysis

by Martin Berka

ATENA products features

by Martin Berka

ATENA Science features

by Martin Berka

ATENA 3D Engineering features

by Martin Berka