2 edition of discrete-element method of analysis for orthogonal slab and grid bridge floor systems found in the catalog.
discrete-element method of analysis for orthogonal slab and grid bridge floor systems
John J. Panak
by Center for Highway Research, University of Texas at Austin] in [Austin
Written in English
|Statement||by John J. Panak [and] Hudson Matlock.|
|Contributions||Matlock, Hudson, joint author., University of Texas at Austin. Center for Highway Research., Texas. Highway Dept., United States. Federal Highway Administration.|
|LC Classifications||TG325.6 .P34|
|The Physical Object|
|Pagination||xix, 153 p.|
|Number of Pages||153|
|LC Control Number||73621027|
existing slab beam bridge in Denison, Texas will be instrumented and observed for supplementary slab beam behavior data. To predict bridge behavior, computer models of the Riverside experimental bridge and of the Denison field bridge were developed using both the grillage and finite element methods of analysis. Finite element analysis and parametric study of grid floor slab Muhammed Yoosaf.K.T 1, Ramadass S2, The grid floors can also be analyzed by numerical methods. The grid floors system can also be analyzed using energy based approach, where the polynomial functions are used to model the For slab portion plate element SHELL 63 is used and.
The purpose of this textbook is to introduce the basic understanding, the analysis and the design of reinforced concrete plates. The book has been written with an engineering approach in mind: We will start by identifying the problems to be solved and then develop a method to solve these. particularly for systems that do not meet the requirements permitting analysis by “direct design method” of the present code, has led many engineers to continue to use the design method of the ACI Code for the special case of two-way slabs supported on four sides of each slab panel by relatively deep, stiff, edge beams. This method has.
in-place concrete bridge decks in which it is assumed instead that the deck resists the loads using an arching effect between the girders. The AASHTO-LRFD Speciﬁcation includes an empirical design method for decks using isotropic reinforcement based on these arch design principles . Under this method no analysis is required. 3. B N Baikov’s method: employs harmonic analysis to solve the problem. Harmonic analysis starts with an assumption that deflection of a beam “y” is a sine function of multiple of elementary span “x”.Thus. y=sin mpx/L where L is the span. p = pie = Then rotation dy/dx works out to be mp/L cos mpx/L and d 2 y/dx 2 works out to be.
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A discrete-element method of analysis for orthogonal slab and grid bridge floor systems by john j. panak and hudson matlock summary report (s) summary of research report project j.s6 cooperative highway research program with texas highway department and u.s.
department of transportation federal high\x'ay administration. A DISCRETE-ELEMENT METHOD OF ANALYSIS FOR ORTHOGONAL SLAB AND GRID BRIDGE FLOOR SYSTEMS.
by John J. Panak Hudson Matlock Research Report Number Development of Methods for Computer Simulation of Beam-Columns and Grid-Beam and Slab Systems Research Project conducted for The Texas Highway Department. Roport No."A Discrete-Element Method of Analysis for Orthogonal Slab and Grid Bridge Floor Systems" by John J.
Panak and Hudson Matlock, presents a crnnputer program particularly suited to highway bridge structures composed of s labs wi th supporting beam-d iaphragm sys terns.
Report No.I~ Discrete-Element Method of AnalYSis for Orthogonal Slab and Grid Bridge Floor Systems" by John J. Panak and Hudson Matlock, presents a computer program particularly suited to highway bridge structures composed of slabs with supporting beam-diaphragm systems.
Report No. "A Discrete-Element Method of Analysis for Orthogonal Slab and Grid Bridge Floor Systems" by John J. Panak and Hudson Matlock, presents a computer program particularly suited to highway bridge structures composed of slabs with supporting beam-diaphragm systems.
May For all hall sizes the thickness of grid slab is assumed as mm. The size of the beams ( m x m) is kept same during entire study. METHODS OF ANALYSIS Grid is highly redundant structural system and therefore statically indeterminate. Various approaches available for the analysis of grid floor frame, are as listed below.
Comparative study of Grillage method and Finite Element Method of RCC Bridge Deck har, Rashmi Kharde Abstract- The simplest form of bridge is the single-span beam or slab which is simply supported at its ends.
Many methods are used in analyzing bridges such as grillage and finite element methods. The “Slab on Grade” worksheet assumes a structurally unreinforced slab, ACI″Type B”, reinforced only for shrinkage and interior load condition is assumed for flexural is, the concentrated post or wheel load is assumed to be well away from a “free” slab edge or original theory and equations.
Details of Grid Floor System For The Analysis A typical grid floor system of standard dimensions adopted in practice has been considered. A rectangu lar grid floor of size 9m x 12m with centre to centre spacing of ribs at m in both ways having simply supported ends on two adjacent sides and fixed ends on the other two sides have been.
This thesis investigates different methods for 3D structural analysis of concrete bridges at a design stage. The aim is to illuminate differences and the impact different modelling procedures and choices made in the modelling process has on the resulting design of a bridge.
Further the same bridge model is analyzed using finite element method for both deck slab and T beam integral with girders using STAAD V8i SS6 software for four different FEM and Courbon.
way systems is given by ACI (R & R). ACI permits the use of Direct Design Method (DDM) and Equivalent Frame Method (EFM) for the gravity load analysis of orthogonal frames and is applicable to flat plates, flat slabs, and slabs with beams. The following sections outline the solution per EFM and spSlab software.
The. 22 hours ago Flat Slab Analysis and Design designs beamless concrete slab floors (flat slab or waffle slab) in accordance with ACI 2 for solid slabs. Flat Floor Work Method www.
Depending on the boundary condition and the properties of the slabs, methods of finding bending moment is expressed in the BS Part 01 as follows. SLAB DESIGN Reading Assignment Chapter 9 of Text and, Chapter 13 of ACI Introduction ACI Code provides two design procedures for slab systems: Direct Design Method (DDM) For slab systems with or without beams loaded only by gravity loads and having a fairly regular layout meeting the following conditions.
concrete slab, and a composite steel girder with a partial concrete slab. The effectiveness of ABAQUS in analyzing reinforced-concrete beams and slabs also established a basis for its use in modeling a complete bridge deck.
A complete analysis using ABAQUS requires a description of. – Equilibrium method – Analysis by Principle of Virtual Work Isotropic and orthotropic slabs o Isotropic slabs A slab is said to be isotropically reinforced if it is reinforced identically in orthogonal directions and its ultimate resisting moment is the same in these two directions as.
modeling, analysis and construction of flat slab structures. Park et al. () found that Equivalent Frame method is not appropriate in accurately predicting the response of two-way slab systems under lateral loads. Currently design. Design Considerations for Reinforced Concrete Flat Slab Floor System Harshal Deshpande1, Radhika Joshi2.
Unfortunately, this book can't be printed from the OpenBook. If you need to print pages from this book, we recommend downloading it as a PDF.
Visit to get more information about this book, to buy it in print, or to download it as a free PDF. This paper discusses three different assessment methods used for a typical concrete slab bridge, which was earlier proof load tested by the RTA.
These methods are the NAASRALinear Grillage (LG) analysis and Effective Width Method (EWM). The results obtained from these methods are compared with the rating obtained from the proof load.
load analysis of orthogonal frames and is applicable to flat plates, flat slabs, and slabs with beams. The following sections outline the solution per DDM, EFM, and spSlab software respectively. Direct Design Method (DDM) Two-way slabs satisfying the limits in ACI () are permitted to be designed in accordance with the DDM.
The grillage model is a common form of analysis model for composite bridge decks. Its key features are: It is a 2D model; Structural behaviour is linear elastic; Beam members are laid out in a grid pattern in single plane, rigidly connected at nodes; Longitudinal members represent composite sections (i.e.
main girders with associated slab).Reinforced concrete skew slabs are widely used in bridge construction when the roads cross the water streams and canals at angles other than 90 degrees. They are also used in floor systems of reinforced concrete buildings as well as load bearing buildings where the floors and roofs are skewed for architectural reasons or space limitations.
E. Lap vapor retarder over footing or seal wall all around penetrations such utilities and columns in order to create a monolithic membrane between the surface of the slab and moisture sources below the slab at the slab perimeter. F. Accurately install mesh reinforcement as required and firmly held a place before and after concrete.