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Die im vorliegenden Versuchsbericht beschriebenen experimentellen Untersuchungen wurden am 1nstitut fur Baustatik und Konstruktion der Eidgenessischen Technischen Hochschule Zurich im Rahmen des Forschungsprojektes "Verformungsf higkeit von Stahlbetonstutzen" durchgefuhrt. Das Ziel dieses Projektes bestand in der Ausarbeitung einer einfachen und zuverlassigen Methode zur Ermittlung des Rissverhaltens von Stutzen bei Zwangsbeanspru- chung. Damit sollten die fruher am 1nstitut durchgefuhrten Untersuchungen uber "Trag- f higkeit schlanker Druckglieder" [1]. [2] erg nzt werden. 1.1 Problemstellung Bei langen Brucken wird den mit dem Ueberbau fest verbundenen Stutzen vor allem durch die L ngen nderung des Tr gers infolge Vorspannung. Schwinden und Temperatur unter Um- standen eine betrachtliche Verformung aufgezwungen. Diese sogenannte Zwangsverformung spielt"zwar bei der Tragf higkeitsberechnung im allgemeinen eine kleine Rolle. da sie damit verbundene Beanspruchung durch die Plastifizierung im Bruchzustand abgebaut wird [3]. 1m Gebrauchszustand kennen jedoch Zwangsverformungen bereits unzul ssig grosse Risse verursachen. Zur Untersuchung des Rissverhaltens bei Zwangsverformungen werden normalerweise aufgrund einer einfachen. beanspruchungsunabh ngigen Steifigkeitsannahme zunachst die Schnitt- krafte und Stahlspannungen berechnet. Dann wird die Rissbreite mit den bei Lastbean- spruchung ublichen Methoden ermittelt. Das Verformungsverhalten von Stahlbeton ist aber nicht - wie bei derartigen Berechnungen vorausgesetzt wird - linear elastisch. 1nfolge Rissbildung nimmt die Biegesteifigkeit bereits im Gebrauchszustand stark abo Einer zuverl ssigen Schnittkraftberechnung musste deshalb ein nichtlineares. beanspruchungsabhangiges Steifigkeitsgesetz zugrunde gelegt werden. Dadurch wird die Berechnung der Schnittkrafte ausserordentlich erschwert. Das Ziel des Forschungsprojektes bestand in der Ausarbeitung eines einfachen und zuver- lassigen Berechnungsverfahrens. mit dem bei einer zul ssigen Rissbreite aufgrund geo- metrischer Beziehungen direkt der zul ssige Verformungszustand ermittelt werden kann.
• Author(s): Clear | James • Publisher: Penguin • Publisher Imprint: Penguin Random House • Subject: General Books
• Author(s): Jeff Kinney • Publisher: Penguin Random House Children's UK • Publisher Imprint: Penguin Random House Children's UK • BISAC: Comics & Graphic Novels - Humorous
• Author(s): Ichiro Kishimi • Publisher: GROVE ATLANTIC • Publisher Imprint: Allen & Unwin • BISAC: Personal Growth - SuccessIchiro Kishimi lives in Kyoto. He writes, lectures and teaches in psychiatric clinics as a certified counsellor and c...
View full details• Author(s): Chetan Bhagat • Publisher: HarperCollins Publishers India • Publisher Imprint: HarperCollins Publishers India • BISAC: GeneralFrom India's top-selling writer Chetan Bhagat comes a powerful new love story that will make you laugh, cry...
View full details• Author(s): Brianna Wiest • Publisher: Manjul Publishing • Publisher Imprint: Amaryllis • BISAC: Body Mind And SpiritThis is a book about self-sabotage. Why we do it, when we do it, and how to stop doing it—for good. Coexisting but conflicting n...
View full details• Author(s): Morgan Housel • Publisher: Pan Macmillan • Publisher Imprint: Pan Macmillan • BISAC: Finance - Wealth ManagementA third book from the International bestselling author of The Psychology of Money and Same as Ever, lessons on harnessing...
View full details• Author(s): Arundhati Roy• Publisher: PRH INDIA LOCAL PRINT• Publisher Imprint: Penguin Hamish Hamilton• BISAC: Literary FiguresArundhati Roy’s first work of memoir, this is a soaring account, both intimate and inspiring, of how the author became...
View full details• Author(s): Acharya Prashant • Publisher: HarperCollins Publishers India • Publisher Imprint: HarperCollins Publishers India • BISAC: GeneralIn a world where vagueness is mistaken for depth and obscurity passes for wisdom, Truth without Apology ...
View full details• Author(s): Sudha Murthy • Publisher: India Puffin • Publisher Imprint: India Puffin • BISAC: Short StoriesWho can resist a good story, especially when it's being told by Grandma? From her bag emerges tales of kings and cheats, monkeys and mic...
View full details• Author(s): Satoshi Yagisawa • Publisher: Bonnier Books Ltd • Publisher Imprint: Bonnier Books Ltd
• Author(s): Newport, Cal • Publisher: Little, Brown Book Group • Publisher Imprint: Piatkus
• Author(s): Shrijeet Shandilya • Publisher: Ebury Press • Publisher Imprint: Ebury Press • BISAC: Romance - GeneralIn the electric haze of college life, three friends are bound by laughter, late-night talks and unspoken promises. But when two of...
View full details• Author(s): Dan Brown • Publisher: Transworld Publishers Ltd • Publisher Imprint: Transworld Publishers Ltd • BISAC: Thrillers - EspionageDan Brown is the bestselling author of Digital Fortress, Deception Point, Angels and Demons, The Da Vinci C...
View full details• Author(s): Sudha Murty • Publisher: India Puffin • Publisher Imprint: India Puffin • BISAC: Action & Adventure - General
Rich Dad Poor Dad: What the Rich Teach Their Kids about Money That the Poor and Middle Class Do Not!
• Publisher: Penguin • Publisher Imprint: Penguin Random House • Subject: General Books • BISAC: Personal Finance - GeneralApril of 2022 marks a 25-year milestone for the personal finance classic Rich Dad Poor Dad that still ranks as the #1 Pers...
View full details• Author(s): Dale Carnegie | Napoleon Hill • Publisher: Fingerprint • Publisher Imprint: Fingerprint • Subject: General Books
• Author(s): Freida Mcfadden • Publisher: Penguin Select Print • Publisher Imprint: Penguin Select Publishing"Multi-Million Copy Bestselling Series •Now Being Made Into a Major Motion Picture Starring Sydney Sweeney and Amanda Seyfried #1 New Yor...
View full details• Author(s): Wonder House Books • Publisher: Wonder House Books • Publisher Imprint: Wonder House Books • BISAC: Comics & Graphic Novels - Fairy Tales, Folklore, Legends & MTimeless Wisdom, Talking Animals & Life Lessons for Young Min...
View full details• Author(s): Viktor E. Frankl • Publisher: Random House • Publisher Imprint: Random Hou • Subject: Medical, Nursing and Health Sciences
• Author(s): Madhavi Bharadwaj • Publisher: PRH India • Publisher Imprint: Penguin Ebury Press • BISAC: Parenting - MotherhoodWelcome to the wild, messy, wonderful world of parenting--where the nights are long, the diapers are explosive, and unso...
View full details• Author(s): Vir Das • Publisher: HarperCollins Publishers India • Publisher Imprint: HarperCollins Publishers India • BISAC: Entertainment & Performing ArtsComedian and actor Vir Das is beloved (by some, tolerated by others, blocked by a few...
View full details• Author(s): Eric Carle • Publisher: Penguin Books, Limited (UK) • Publisher Imprint: Penguin Books, Limited (UK) • BISAC: Animals - Butterflies, Moths & CaterpillarsEric Carle's The Very Hungry Caterpillar is a perennial favourite with child...
View full details• Author(s): Prajakta Koli • Publisher: Harper Fiction India • Publisher Imprint: Harper Fiction India • BISAC: Romance - ContemporaryWinner of the Amazon India Popular Choice Debut Book 2025 Award. From one of India's most-loved creators comes s...
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