@incollection{FinckhNiedermeier, author = {Finckh, Wolfgang and Niedermeier, Roland}, title = {Example 4: Strengthening a reinforced concrete column by wrapping}, series = {Commentary on the DAfStb guideline "Strengthening of concrete members with adhesively bonded reinforcement" with examples}, booktitle = {Commentary on the DAfStb guideline "Strengthening of concrete members with adhesively bonded reinforcement" with examples}, publisher = {Beuth}, address = {Berlin ; Wien ; Z{\"u}rich}, isbn = {978-3-410-65255-7}, issn = {0171-7197}, pages = {115 -- 125}, subject = {Betonbauteil}, language = {en} } @inproceedings{FinckhZilch, author = {Finckh, Wolfgang and Zilch, Konrad}, title = {Comparison of Guidelines for Externally Bonded Reinforcement}, series = {Codes in structural engineering - Developments and needs for international practice ; joint IABSE - fib conference, Dubrovnik, Croatia, May 3 - 5, 2010}, booktitle = {Codes in structural engineering - Developments and needs for international practice ; joint IABSE - fib conference, Dubrovnik, Croatia, May 3 - 5, 2010}, address = {Zagreb}, isbn = {978-9537621087}, language = {en} } @inproceedings{FinckhZilch, author = {Finckh, Wolfgang and Zilch, Konrad}, title = {Influence of member-specific effects the bond force transfer of reinforced concrete strengthened with externally bonded CFRP-strips}, series = {Proceedings of the Fourth International Symposium "Bond in concrete 2012: Bond, Anchorage, Detailing" -Brescia, Italy, 17th - 20th June 2012. Volume 2: Bond in New Materials and Under Severe Conditions}, booktitle = {Proceedings of the Fourth International Symposium "Bond in concrete 2012: Bond, Anchorage, Detailing" -Brescia, Italy, 17th - 20th June 2012. Volume 2: Bond in New Materials and Under Severe Conditions}, publisher = {Publisher creation}, address = {Manerbio}, isbn = {978-88-907078-3-4}, language = {en} } @inproceedings{WeghWagnerGaudlitzetal., author = {Wegh, Niels and Wagner, Marcus and Gaudlitz, Daniel and Finckh, Hermann and Klein, Markus}, title = {Numerical Simulation of Filling Process in Resin Transfer Molding}, series = {13th International Conference on Flow Processes in Composites Materials (FPCM-13), Kyoto, Japan}, booktitle = {13th International Conference on Flow Processes in Composites Materials (FPCM-13), Kyoto, Japan}, language = {en} } @article{FinckhZilch, author = {Finckh, Wolfgang and Zilch, Konrad}, title = {Strengthening and Rehabilitation of Reinforced Concrete Slabs with Carbon-Fiber Reinforced Polymers Using a Refined Bond Model}, series = {Computer-Aided Civil and Infrastructure Engineering}, volume = {27}, journal = {Computer-Aided Civil and Infrastructure Engineering}, number = {5}, publisher = {Wiley}, doi = {10.1111/j.1467-8667.2011.00752.x}, pages = {333 -- 346}, abstract = {Slabs are one of the main load-bearing elements in nearly every structure. Because of additional live loads or modifications of the building structure these slabs often have to be strengthened. Using externally bonded carbon-fiber reinforced polymer (CFRP) strips to strengthen existing concrete structures has become common practice. One of the main failure modes is the loss of the composite action between the concrete and the CFRP strip making the bond force transfer very important. This bond force transfer depends on many parameters including the concrete strength, the ratio between shear force, and bending moment. A new parameter recently discovered by the Technische Universit{\"a}t M{\"u}nchen (TUM) is the deflection of the structural elements themselves. Because of this deflection self-inducted contact pressure occurs. This contact pressure affects a higher bond transfer. The lower effective depth of slabs compared to beams causes higher deflections. In this article, first a few principles on the strengthening with adhesive-bonded CFRP strips and the characteristics of the bond are explained. Then, the basics of the bond force transfer, at the end anchorage and in the rest of the element, are summarized. Based on these essentials, as well as numerous experiments, the change in the bond force transfer at the structural element caused by the curvature is then derived. With these findings, a complete verification concept is presented, which is ideal for computerized calculations. This verification concept is finally compared to several full-scale test results presented in pertinent literature.}, language = {en} } @article{Schermer, author = {Schermer, Detleff}, title = {Design according to Eurocode 6 in practice}, series = {Mauerwerk}, volume = {21}, journal = {Mauerwerk}, number = {1}, publisher = {Ernst \& Sohn, a Wiley brand}, issn = {1432-3427}, doi = {10.1002/dama.201700719}, abstract = {For the structural design of masonry according to Eurocode 6 with the associated German national annex, the simplified method and the further simplified calculation method in Annex A are available. These procedures provide tools that can be used in practice to design standard cases quickly and easily. One feature of the verification of masonry walls under compressive loading is that no bending moments in the walls have to be determined as part of the determination of section forces and moments since the verification of the load-bearing capacity of the wall is based solely on the acting vertical force. The effects of floor end restraint and buckling are dealt with by simple equations. One new feature of verification according to Eurocode 6 is that the effect of partially supported floors on the load-bearing capacity of the wall can be included directly. The code is compact and simple to use and the further simplified calculation method is predestined for verification by manual calculation.}, language = {en} } @article{SchermerMeyerLutmanetal., author = {Schermer, Detleff and Meyer, Udo Joachim and Lutman, Marjana and Triller, Petra}, title = {Shear tests on highly thermal insulating clay unit masonry walls with thin layer mortar}, series = {Mauerwerk}, volume = {23}, journal = {Mauerwerk}, number = {3}, publisher = {Ernst \& Sohn}, address = {Berlin}, issn = {1432-3427}, doi = {10.1002/dama.201900007}, pages = {160 -- 169}, abstract = {The paper presents the results of a series of 6 shear tests on full scale highly thermal insulating clay unit masonry walls. The walls consisted of units with large voids filled with mineral wool with a thermal conductivity of lambda= 0,07 W/(m . K). The aim of the investigations was the verification of the in-planeshear resistance of this type of thermal insulating clay unit masonry in addition to the tests reported in [1]. The current design rules for clay unit masonry in DIN EN 1996-1-1/NA are rather conservative compared to the test results for thermal insulating units.}, language = {en} } @article{Schermer, author = {Schermer, Detleff}, title = {The simplified calculation method of DIN EN 1996-3 in practice}, series = {Mauerwerk}, volume = {19}, journal = {Mauerwerk}, number = {6}, publisher = {Wiley}, doi = {10.1002/dama.201500682}, pages = {471 -- 478}, abstract = {The design and detailing of masonry buildings was usually undertaken in the past using the simplified procedure in Section 6 of DIN 1053-1 (1996-11). With the changeover to the new European code, a new procedure has been made available with the simplified calculation method of DIN EN 1996-3, which promises similarly simple and safe handling for the user. The practical implementation of this new code has been underway for some time. The article investigates the standard design cases and explains the innovations and alterations compared to DIN 1053-1.}, language = {en} } @incollection{FinckhSchmittZilch, author = {Finckh, Wolfgang and Schmitt, Alexander and Zilch, Konrad}, title = {Example 1: Strengthening a slab with externally bonded CFRP strips}, series = {Commentary on the DAfStb guideline "Strengthening of concrete members with adhesively bonded reinforcement" with examples}, booktitle = {Commentary on the DAfStb guideline "Strengthening of concrete members with adhesively bonded reinforcement" with examples}, publisher = {Beuth}, address = {Berlin ; Wien ; Z{\"u}rich}, isbn = {978-3-410-65255-7}, issn = {0171-7197}, pages = {47 -- 68}, subject = {Betonbauteil}, language = {en} } @article{Schermer, author = {Schermer, Detleff}, title = {Hybrid testing of masonry structures subjected to seismic loading}, series = {Mauerwerk}, volume = {18}, journal = {Mauerwerk}, number = {3-4}, publisher = {Ernst ; WILEY}, address = {Berlin ; Weinheim}, issn = {1437-1022}, doi = {10.1002/dama.201400625}, pages = {206 -- 212}, abstract = {The combination of experiments and numeric description in a test makes it possible to realistically investigate almost any type of system subjected to dynamic loading without requiring the extremely expensive device of a shaking table. With the numeric approach it is possible to examine the behaviour of even very large and complex structures, thus reducing the experimental investigations to the essential part of the system - for example, bracing masonry walls. This test method has proved to be very helpful, particularly for the investigation of seismic loading, and it allows the synchronous examination of several force and displacement variables (horizontal, vertical, rotational). A new laboratory is presented for the investigation of full-scale building structures up to three storeys high. Die Kombination von Experiment und numerischer Beschreibung innerhalb eines Versuches erlaubt die realit{\"a}tsnahe Untersuchung ann{\"a}hernd beliebiger Systeme unter dynamischen Beanspruchungen, ohne den extrem hohen Aufwand von R{\"u}tteltischen zu erfordern. Durch die Numerik k{\"o}nnen auch sehr große und komplexe Strukturen mit ihrem Verhalten erfasst werden, wobei sich die versuchsm{\"a}ßige Untersuchung auf den maßgebenden Teil des Systems - beispielsweise aussteifende Mauerwerksw{\"a}nde - beschr{\"a}nken kann. Insbesondere f{\"u}r Erdbebenbeanspruchung hat sich die Versuchsmethode sehr gut bew{\"a}hrt und es k{\"o}nnen mehrere Kraft- und Verschiebungsgr{\"o}ßen (horizontal, vertikal, Rotation) synchron behandelt werden. F{\"u}r die Untersuchung an vollmaßst{\"a}blichen Geb{\"a}udestrukturen bis zu drei Geschossen wird ein neues Labor vorgestellt.}, language = {en} } @incollection{FinckhNiedermeierSchmittetal., author = {Finckh, Wolfgang and Niedermeier, Roland and Schmitt, Alexander and Zilch, Konrad}, title = {Example 3: Strengthening a T-beam with externally bonded CFRP strips}, series = {Commentary on the DAfStb guideline "Strengthening of concrete members with adhesively bonded reinforcement" with examples}, booktitle = {Commentary on the DAfStb guideline "Strengthening of concrete members with adhesively bonded reinforcement" with examples}, publisher = {Beuth}, address = {Berlin ; Wien ; Z{\"u}rich}, isbn = {978-3-410-65255-7}, issn = {0171-7197}, pages = {115 -- 125}, subject = {Betonbauteil}, language = {en} } @incollection{FinckhSchmittZilch, author = {Finckh, Wolfgang and Schmitt, Alexander and Zilch, Konrad}, title = {Example 2: Strengthening a slab with near surface mounted CFRP strips}, series = {Commentary on the DAfStb guideline "Strengthening of concrete members with adhesively bonded reinforcement" with examples}, booktitle = {Commentary on the DAfStb guideline "Strengthening of concrete members with adhesively bonded reinforcement" with examples}, publisher = {Beuth}, address = {Berlin ; Wien ; Z{\"u}rich}, isbn = {978-3-410-65255-7}, issn = {0171-7197}, pages = {69 -- 86}, subject = {Betonbauteil}, language = {en} } @inproceedings{ZilchNiedermeierFinckh, author = {Zilch, Konrad and Niedermeier, Roland and Finckh, Wolfgang}, title = {Guideline for the Performance and Interpretation of Bond Tests on Concrete Specimens with Externally Bonded CFRP Strips}, series = {Proceedings of the 9th International Symposium on Fibre Reinforced Polymers in Reinforced Concrete Structures (FRPRCS-9), 13.07. - 15.07.2009, Sydney, Australia}, booktitle = {Proceedings of the 9th International Symposium on Fibre Reinforced Polymers in Reinforced Concrete Structures (FRPRCS-9), 13.07. - 15.07.2009, Sydney, Australia}, editor = {Oehlers, Deric John and Griffith, Michael C. and Seracino, R.}, publisher = {[Univ ersity of Adelaide]}, address = {[Adelaide]}, isbn = {978-0-9806755-0-4}, language = {en} } @inproceedings{FinckhZilchEllinger, author = {Finckh, Wolfgang and Zilch, Konrad and Ellinger, Mathias}, title = {Evaluating the bond stress relationship of externally bonded CFRP-strips at the intermediate crack element}, series = {Smart monitoring, assessment and rehabilitation of civil structures : proceedings of SMAR 2011, First Middle East Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures, Dubai, UAE, 8-10 February 2011 at AUD, American University in Dubai UAE}, booktitle = {Smart monitoring, assessment and rehabilitation of civil structures : proceedings of SMAR 2011, First Middle East Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures, Dubai, UAE, 8-10 February 2011 at AUD, American University in Dubai UAE}, editor = {Motavalli, Masoud}, edition = {1 CD-ROM}, publisher = {EMPA}, address = {[D{\"u}bendorf]}, isbn = {978-3-905594-58-4}, pages = {1 -- 9}, abstract = {When reinforced concrete is strengthened by using externally bonded CFRP strips it is not sufficient to perform checks just for the end anchorages. The bond forces must be transferred where the load is applied. These bond forces may be transferred by the elements in between flexural cracks which are mainly influenced by the bond behavior of the internal and external reinforcing. Therefore the models which were derived from end anchorage tests must be expanded to include other effects as well. These models were first described theoretically by the differential equation of bond and a bilinear bond stress slippage relationship. To evaluate this theoretically derived relationship numerous experiments on the intermediate crack elements where conducted. In this paper, an evaluation of these experiments in two different ways is shown. The one evaluation is carried out only on the fracture force, the other analysis also takes the slippage occurred in the intermediate crack element tests into account. With both evaluations it can be shown, that besides the previously scheduled bilinear bond approach additional friction effects between the already decoupled fracture surfaces of the bonded strips occur.}, language = {en} } @inproceedings{FinckhZilch, author = {Finckh, Wolfgang and Zilch, Konrad}, title = {Evaluation of the bond behavior at the intermediate crack element with a special test procedure}, series = {Advances in FRP Composites in Civil Engineering : Proceedings of the 5th International Conference on FRP Composites in Civil Engineering (CICE 2010), Sep 27-29, 2010, Beijing, China}, booktitle = {Advances in FRP Composites in Civil Engineering : Proceedings of the 5th International Conference on FRP Composites in Civil Engineering (CICE 2010), Sep 27-29, 2010, Beijing, China}, editor = {Ye, Lieping and Feng, Peng and Yue, Qingrui}, publisher = {Springer}, address = {Berlin ; Heidelberg}, isbn = {978-3-642-17486-5}, doi = {10.1007/978-3-642-17487-2_111}, pages = {517 -- 520}, abstract = {The bond behavior of externally bonded reinforcement is one main parameter for the load bearing capacity of strengthened reinforced concrete structures. Because of the low bond force transfer at the outmost bending crack, the bond forces have also been transferred to elements between the cracks in order to effectively utilize the permissible stress of the CFRP strip. Two different experimental series on the bond behavior on the intermediate crack element were carried out. Small tests on an idealized intermediate crack element were made to evaluate the bond stress increase. In the second series parts of a structural element, which had the length of an intermediate crack element were tested to find out about other effects which only occur in the structural element. Based on these experimental data and the differential equation of the sway bond a new concept for the bond behavior of externally bonded reinforcement has been found out.}, language = {en} } @inproceedings{ZilchNiedermeierFinckh, author = {Zilch, Konrad and Niedermeier, Roland and Finckh, Wolfgang}, title = {New German guideline for strengthening concrete structures with adhesive bonded reinforcement}, series = {Smart monitoring, assessment and rehabilitation of civil structures, Proceedings of SMAR 2011, First Middle East Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures, Dubai, UAE, 8 - 10 February 2011 at AUD, American University in Dubai UAE}, booktitle = {Smart monitoring, assessment and rehabilitation of civil structures, Proceedings of SMAR 2011, First Middle East Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures, Dubai, UAE, 8 - 10 February 2011 at AUD, American University in Dubai UAE}, editor = {Motavalli, Masoud}, edition = {1 CD-ROM Ill., graph. Darst. 1 Buch (212 S.)}, publisher = {EMPA}, isbn = {978-3-905594-58-4}, language = {en} } @inproceedings{GlaeserJungSaengFinckh, author = {Gl{\"a}ser, Christian and Jung-Saeng, A. and Finckh, Wolfgang}, title = {Recent developments of spliced segmental griders using enhanced post tensioning systems}, series = {Third international fib congress incorporating the PCI annual convention and bridge conference 2010, May 29-June 2, 2010, Washington, D.C.}, booktitle = {Third international fib congress incorporating the PCI annual convention and bridge conference 2010, May 29-June 2, 2010, Washington, D.C.}, edition = {1 DVD-ROM}, publisher = {Precast/Prestressed Concrete Institute,}, address = {Chicago, IL}, language = {en} } @inproceedings{FinckhZilch, author = {Finckh, Wolfgang and Zilch, Konrad}, title = {Influence of the curvature on the bond force transfer of EBR}, series = {10th International Symposium on Fiber-Reinforced Polymer Reinforcement for Concrete Structures 2011 : Tampa, Florida, USA, 2 - 4 April 2011}, booktitle = {10th International Symposium on Fiber-Reinforced Polymer Reinforcement for Concrete Structures 2011 : Tampa, Florida, USA, 2 - 4 April 2011}, publisher = {Curran}, address = {Red Hook, NY}, isbn = {978-1-61839-203-9}, language = {en} } @incollection{FinckhZilch, author = {Finckh, Wolfgang and Zilch, Konrad}, title = {Specific structural effects on the bond force transfer of reinforced concrete strengthened with externally bonded CFRP-strips}, series = {Building Materials and Building Technology to Preserve the Built Heritage}, booktitle = {Building Materials and Building Technology to Preserve the Built Heritage}, address = {Brno}, isbn = {978-3-937066-21-9}, language = {en} } @inproceedings{FinckhZilch, author = {Finckh, Wolfgang and Zilch, Konrad}, title = {Strengthening and rehabilitation of reinforced concrete slabs with CFRP}, series = {International conference on high rise towers and tall building 2010, April 14-16, Munich}, booktitle = {International conference on high rise towers and tall building 2010, April 14-16, Munich}, address = {M{\"u}nchen}, language = {en} } @inproceedings{Finckh, author = {Finckh, Wolfgang}, title = {EN 1992-1-1 Chapter 7.3: Crack Control - PRB Suggestions for Improvement}, series = {Proceedings of the First PRB-Workshop on Contributions for the Ease of Use of the Eurocodes, 4th and 5th December 2014, Berlin}, booktitle = {Proceedings of the First PRB-Workshop on Contributions for the Ease of Use of the Eurocodes, 4th and 5th December 2014, Berlin}, publisher = {Praxisgerechte Regelwerke im Bauwesen e.V.}, address = {Berlin}, isbn = {978-3-410-25201-6}, pages = {79 -- 80}, language = {en} } @inproceedings{FinckhZilch, author = {Finckh, Wolfgang and Zilch, Konrad}, title = {Practical-Orientated Full-Scale Tests In Comparison With Bond Checks of Different Guidelines}, series = {The Third Asia-Pacific Conference on FRP in Structures (APFIS2012), 2 to 4 February 2012, Sapporo, Japan}, booktitle = {The Third Asia-Pacific Conference on FRP in Structures (APFIS2012), 2 to 4 February 2012, Sapporo, Japan}, address = {Sapporo}, language = {en} } @inproceedings{FinckhZilch, author = {Finckh, Wolfgang and Zilch, Konrad}, title = {Specific structural effects by strengthening pre-stressed concrete beams with externally bonded FRP}, series = {6th International Conference on FRP Composites in Civil Engineering; CICE 2012 Rome ; 13-15 June}, booktitle = {6th International Conference on FRP Composites in Civil Engineering; CICE 2012 Rome ; 13-15 June}, publisher = {Sapienza Universita de Roma}, address = {Rom}, language = {en} }