LRFD Steel Girder SuperStructure Design Example - ,

AASHTO References For uniformity and simplicity, this design example is based on the AASHTO LRFD Bridge Design Specifications (Second Edition, 1998, including interims for 1999 through 2002) References to the AASHTO LRFD Bridge Design Specifications are included throughout the design example...

BRIDGE ANALYSIS GUIDE - michigangov

The HL-93 Live Load is the design live load for bridges designed under Load and Resistance Factor Design (LRFD) Please refer to the latest edition of the AASHTO...

HL-93 Design Truck AASHTO - EngineeringCivilorg

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AASHTO HL-93 Loading | HS20-44, Design Truck, Design ,

AASHTO HL-93 Loading Highway Design : Advertisements This is a hypothetical Live Load Model proposed by AASHTO for analysis of bridg Reason for proposing this live load model is to prescribe a set of loads such that it produces extreme load effect approximately same as that produced by the exclusion vehicl...

Live Loads for Bridges - The University of Memphis

Live Loads for Bridges The AASHTO specifications also allow you to represent the truck as a single concentrated load and an uniform load For H15-44 and HS15-44:...

HL-93 AASHTO vehicular en vivo Loading | camiones ,

HL-93 es un tipo de carga vehicular teórico propuesto por la AASHTO en 1993 Se utiliza como la carga de diseño de estructuras viales en EEUU y otros países donde se sigue el código AASHTO...

SECTION 2 LOADS & RATINGS - New York State Thruway

SECTION 2 LOADS & RATINGS 2-1 SECTION 2 - LOADS & RATINGS 21 - DESIGN LOADS ON STRUCTURES , The minimum design live loading for LRFD is designated HL-93 It is a modification of the HS20- , AASHTO LRFD 4 th Edition suggests the use of a modification f actor to the HL -93 ,...

IDAHO & UTAH CONCRETE BOX GIRDER BRIDGES LOAD ,

BrR v670 15 P/T and RC Concrete Boxes in BrR Load rating effort was 45 to 186 hours per bridge o Included rating, checking, QC, and some verification LRFR Rating (HL-93) AASHTO Refined Losses Most bridges had integral pier supports IDAHO CONC BOX RATINGS Section Properties...

Bridge Design Manual M 23-50 Chapter 13 Bridge ,

The moving loads shall be the HL-93 loading, the AASHTO legal loads (including three AASHTO trucks and notional rating load), and the two WSDOT overload vehicles (See Figures 131-1 and 131-3 thru 131-9) and the two Emergency Vehicles...

Introduction to LRFD, Loads and Loads Distribution

Introduction to LRFD 1-1 Introduction to LRFD, Loads and Loads Distribution Thomas K Saad, PE Federal Highway Administration Chicago, IL Evolution of Design...

LRFR LOAD RATING PROCESS & LOAD RATING ,

3 Different design vehicles have been used in the past for the design of bridges ( eg, H-15, HS20-44, HS25, HL-93, ,) Some bridges have aged, deteriorated or become structurally deficient during the course of their life To have a consistent summary of the load carrying capacities, all bridges are rated using a standard set of vehicles, called...

AASHTO Design Vehicles - Bridge engineering - Eng-Tips

Oct 13, 2003· No, HL-93 is not the same as HS-20 In the AASHTO Standard Spec, the HS-20 truck OR the lane load is used as the design live load In the AASHTO LRFD, both the truck AND the lane load must be applied at the same time...

021 Cargas y combinaciones de cargas - Biblioteca ,

A continuación aclararemos el concepto de línea de diseño usado en el modelo AASHTO HL-93 Para esto es necesario conocer también el concepto de línea de tráfico La línea de tráfico es el número de lineas o rutas que se planea usar para cruzar el puente...

HL-93 AASHTO Vehicular Live Loading | Truck | Tandem ,

HL-93 is a type of theoretical vehicular loading proposed by AASHTO in 1993 It is used as the design loading for highway structures in USA and other countries where AASHTO code is followed...

The HL-93 Live Load Model - Aspire

In the case of the AASHTO , most part the dynamic load allowance for the HL-93 live-load model is specified in Article 362, as a constant value of 33% for superstructures at the strength or service limit , Recall from the previous articles that the HL-93 live load consists of a design truck or design tandem and a design lane load The...

Coches manuales: Vehiculo de diseno hl93

A) Camion de Diseno Ubicamos en el camion HL-93 la posicion de la VALIDACION DE LA NORMA AASHTO-LRFD EN PUENTES puentes de seccion cajon 12- Analisis de la carga vertical movil o vehiculo de diseno en diferent cada uno, con denominacion HL93...

AASHTO TRUCK LOADING - Structural - Engineer Boards

Feb 14, 2011· My reference is the latest AASHTO LRFD code so the literal section numbers might be a little different from the test code (2003) but they should be close 36121 HL-93 is "the design truck OR design tandem" + "design lane load"...

DESIGN LOAD RATING SUMMARY TABLES - Florida ,

DESIGN LOAD RATING SUMMARY TABLES , HL-93 175 135 Strength I (Inv) 125 Strength I (Op) Strength II HL-93 FL120 N/A N/A 600 135 125 125 150 150 , Has the AASHTO LRFD Specifications using the permit vehicle in all lan 1 Permit capacity is determined by Table 2 Notes:...

LOAD MODELS FOR LRFR - Pages

load models for lrfr bala sivakumar, pe hntb corp , hl-93 5 lrfr legal loads for rating & posting truck load models lane load models new aashto legal loads (2005) type 3 unit type 3s2 unit type 3s2 unit type 3-3 w = 80 kips aashto legal trucks 6 ,...

LEAP Steel Load Case HL-93 vs HL-93 (Deflection per AASHTO ,

HL-93 -- The deflection information in the live load output report on the analysis tab is total sum of both the full truck and lane deflection, and does not follow the deflection criteria of AASHTO 36132...

Finding Maximum Moment: Determining HL-93 Truck ,

By the 1990s, a new AASHTO specification was introduced based on LRFD The old HS-20 live-load model was modified to combine its component lane load and truck load cases into a single load case called HL-93...

HL93 Truck Loads vs HS20 Truck Loads

HL93 Truck Loads vs HS20 Truck Loads National Precast Concrete Association / Precast Magazines / Precast Inc Magazine / Archive - 2009-2010 / HL93 Truck Loads vs HS20 Truck Loads , This is confirmed in ASTM C1577, which states that the tables were created using the AASHTO HL 93 live load without the lane load as permitted by AASHTO...

Finding Maximum Moment: Determining HL-93 Truck Position ,

Truck portion of the HL-93 live-load model According to AASHTO ( 2012 ), the second and third axle spacing may vary from 14 to 30 ft (4267 to 9144 m) However, for the purposes of this paper, using the minimum 14-ft (4267-m) spacing produces the maximum moment for a simple span...

50 AASHTO Controlling Design Criteria

AASHTO Controlling Design Criteria Report (March 2010) Appendix A contains the I-40 mainline evaluation Appendix A contains the I-40 mainline evaluation from that report, including horizontal and vertical data summaries and bridge evaluation forms...

Live Load Moment Calculator - AASHTO-LRFD HL-93 Load Model

Calculator offers options for HL-93, KGM45, and a manual selection of live load model The live load calculator aims to find maximum live load moment under a choice of truck models Truck Loads consist of P1, P2 and P3 axle loads, and wllu uniform load per lane...

LRFD Design Example #2

LRFD DESIGN EXAMPLE: CAST-IN-PLACE FLAT SLAB BRIDGE DESIGN , AASHTO LRFD Bridge Design Specifications, 2nd Edition, 2002 Interims , HL-93 Truck Load and Resistance Factor Design (LRFD) except that Prestressed Piles have been designed for Service Load...

HL-93 Loading to Piers for Simple Spans - Bridge ,

Oct 03, 2010· HL-93 M= 2,320k-ft, R= 973k Standard Edition M=1,520k-ft, R=65k The previous AASHTO editions you added 26k at the reaction for ,...

MDOT Research Report R1511 - michigangov

The AASHTO Legal Loads are also used as the legal load of numerous stat Because of this, Michigan has, in the past, adjusted the AASHTO design truck to account for the heavier loads , at the unmodified HL-93 loading using load factors identified in the MBE Table 6A4322-1...

Table of Contents - CEProfs

based on LRFR methods using HL-93 loading or LFR methods based on the HS-20 vehicle Bridges designed using LFD, and being rehabilitated, should be load-rated for the AASHTO LFD design vehicl...

The Use of AASHTO LRFD Bridge Design ,

The Use of AASHTO LRFD Bridge Design Specifications with Culverts Josh Beakley November, 2010 2 LRFD is Required June 28th, 2000 FHWA Memo AASHTO , AASHTO LRFD Bridge DesignAASHTO LRFD Bridge Design , designated HLdesignated HL--93, shall consist of a 93, shall consist of a ....