- Strengthening of stone walls by unilateral applications of reinforced concrete
- G.P. Tonkih ; O.V. Kabancev ; O.A. Simakov
- The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, Paper No. 3661
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Repair and Retrofit of Structures
- Keywords: Masonry Structures
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- Steel Bridge Design Handbook Design Example 2B: Two-Span Continuous Straight Composite Steel Wide-Flange Beam Bridge
- K. Barth
- Book Title / Journal:
- Year: 2012 , Volume: 22 , Series: No. FHWA-IF-12-052
- Bridge management ; Bridges
- Keywords: Steel Bridge ; Steel wide-flange beam ; Moment Redistribution ; AASHTO LRFD ; Wind on Structure
- Description
- This design example presents an alternative design for that presented in the Steel Bridge Design Handbook Design Example 2A. Specifically, the design of a continuous steel wide-flange beam bridge is presented using a standard shape rolled I-beam, as an alternative to the plate girder design. The AASHTO LRFD Bridge Design Specifications are the governing specifications and all aspects of the provisions applicable to wide-flange beam bridge design (cross-section proportion limits, constructibility, serviceability, fatigue, and strength requirements) are considered. Furthermore, the optional moment redistribution specifications will be invoked. In addition to the beam design, the design of the concrete deck is also included. A basic wind analysis of the structure is also presented.
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- Structural behavior of small scale masonry elements strengthened with engineered cementitious composites
- A. Dehghani ; G. Fischer ; F. Nateghi-Alahi
- The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, Paper No. 5337
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Repair and Retrofit of Structures
- Keywords: Masonry Structures
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- Steel Bridge Design Handbook Design Example 3: Three-Span Continuous Horizontally Curved Composite Steel I-Girder Bridge
- J. Rivera ; B. Chavel
- Book Title / Journal:
- Year: 2012 , Volume: 23 , Series: No. FHWA-IF-12-052
- Bridge management ; Bridges
- Keywords: Curved I-Girder Bridge ; Bridge design ; LRFD ; Bolted Field Splice ; Cross Frame
- Description
- Horizontally curved steel bridges present many unique challenges. Despite their challenges, curved girder bridges have become widespread and are commonly used at locations that require complex geometries and have limited right-of-way, such as urban interchanges. Some of the important issues that differentiate curved steel girders from their straight counterparts include the effects of torsion, flange lateral bending, their inherent lack of stability, and special constructibility concerns. Also, the complex behavior of horizontally curved bridges necessitates the consideration of system behavior in the analysis.
This design example illustrates the design calculations for a curved steel I-girder bridge, considering the Strength, Service, fatigue and Constructibility Limits States in accordance with the AASHTO LRFD Bridge Designs specifications. Calculations are provided for design checks at particular girder locations, a bolted field splice design, a cross frame member design, shear connector design, and a bearing stiffener design.
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- In-plane shear and out-of-plane bending capacity interaction in brick masonry walls
- R. Mahmoud ; M.A. Najafgholipour
- The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, Paper No. 0923
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Structure types ; Masonry Structures
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- Steel Bridge Design Handbook Design Example 4: Three-Span Continuous Straight Composite Steel Tub Girder Bridge
- B. Chavel ; J. Carnahan
- Book Title / Journal:
- Year: 2012 , Volume: 24 , Series: FHWA-IF-12-052
- Bridge management ; Bridges
- Keywords: Steel Tub Girder ; Steel Box Girder ; Lateral Bracing ; Design Example ; Steel Bridge
- Description
- Tub girders are often selected over I-girders because of their pleasing appearance offering a smooth, uninterrupted, cross section. Bracing, web stiffeners, utilities, and other structural and nonstructural components are typically hidden from view within the steel tub girder, resulting in the tub girders clean appearance. Additionally, steel tub girder bridges offer advantages over other superstructure types in terms of span range, stiffness, durability, and future maintenance.
This design example demonstrates the design of a tangent three-span continuous composite tub girder bridge with a span arrangement of 187.5 ft - 275.0 ft - 187.5 ft. This example illustrates the flexural design of a section in positive flexure, the flexural design of a section in negative flexure, the shear design of the web, the evaluation of using a stiffened versus an unstiffened bottom flange in the negative flexure region, as well as discussions related to top flange lateral bracing and bearing design.
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- Shear tests on rubble stone masonry panels - diagonal compression tests
- J. Milosevic ; R. Bento ; A.S. Gago ; M. Lopes
- The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, Paper No. 1190
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Structure types ; Masonry Structures
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- Steel Bridge Design Handbook Design Example 5: Three-Span Continuous Horizontally Curved Composite Steel Tub-Girder Bridge
- B. Chavel ; J. Rivera
- Book Title / Journal:
- Year: 2012 , Volume: 24 , Series: FHWA-IF-12-052
- Bridge management ; Bridges
- Keywords: Steel Tub Girder Bridge ; Steel Box Girder Bridge ; LRFD ; Bolted Field Splice ; Box Girder Distortional Stresses
- Description
- Tub girders, as closed-section structures, provide a more efficient cross section for resisting torsion than I-girders, which is especially important in horizontally curved highway bridges. The increased torsional resistance of a closed composite steel tub girder also results in an improved lateral distribution of live loads. For curved bridges, warping, or flange lateral bending, stresses are lower in tub girders, when compared to I-girders, since tub girder carry torsion primarily by means of St. Venant torsional shear flow around the perimeter of their closed sections, whereas I-girders have very low St. Venant torsional stiffness and carry torsion primarily by means of warping.
This design example illustrates the design calculations for a curved steel tub girder bridge, considering the Strength, Service, fatigue and Constructibility Limits States in accordance with the AASHTO LRFD Bridge Designs specifications. Calculations are provided for design checks at particular girder locations, a bolted field splice design, an internal pier diaphragm design, and a top flange lateral bracing member design.
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- Experimental data analysis for mechanical modelling of existing brick masonry structures
- F. Parisi ; N. Augenti
- The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, Paper No. 2898
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Structure types ; Masonry Structures
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- Advances in the Multiphysics Analysis of Structures
- K.J. Bathe
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Structural Analysis
- Keywords: Finite elements ; wave propagations ; shells ; Large strains ; Maxwell’s equations ; electromechanics
- Description
- In this presentation we survey the advances that we have recently accomplished for the effective analysis of solids and structures, specifically for wave propagations and transient solutions, the analysis of shells, improved stress calculations, the use of interpolation covers, and the solution of the full Maxwell’s equations. The structures may be subjected to complex fluid flows and electromagnetic effects. We briefly give the theoretical developments for the formulations, a few illustrative solutions, and conclude by mentioning some further exciting research challenges.
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- Determination of mechanical properties of the Kathmandu World Heritage brick masonry buildings
- H.R. Parajuli
- The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, Paper No. 3139
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Structure types ; Masonry Structures
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- Seismic analysis of masonry arches
- S. De Santis ; G. de Felice
- The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, Paper No. 0687
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Earthquake engineering
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- Experimental and numerical analysis of the cyclic behaviour of RC beam-column connections with plain reinforcing bars
- J. Melo ; H. Varum ; A. Costa
- The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, Paper No. 1176
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Earthquake engineering
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- Shake table testing and analytical modeling of fully-grouted reinforced concrete block masonry shear walls
- W.W. El-Dakhakhni ; M.J. Tait ; S. Mojiri
- Book Title / Journal: 15th International Brick and Block Masonry Conference, Florianópolis, Brazil
- Year: 2012 , Volume: , Series:
- Earthquake engineering
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- Seismic performance of new steel concrete composite beam-columns
- T. Sakurada ; N. Morohashi ; T. Fujimoto ; H. Komatsu
- The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, Paper No. 1319
- Book Title / Journal:
- Year: 2012 , Volume: , Series:
- Earthquake engineering
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