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CS 454 ALL 1 Moving Load Optimization - Jitbit
WebJan 28, 2024 · Number of notional lanes = 2 Notional lane width = 7.3/2 = 3.65m Cl. 6.2.1. Loaded length = 34m W = 336 (1/L) 0.67 kN/m (per notional lane) W = 31.6 kN/m (per notional lane) Cl. 6.2.2. Knife Edge Load = 120 kN (per notional lane) Cl. 6.4.1.1. α 2 = 0.0137 [b L (40-L)+3.65 (L-20)] α 2 = 0.0137 [3.65 (40-34.0)+3.65 (34.0-20)] = 1.0 Weblanes of 3.65m standard lane width. The bunching factor was reduced linearly to unity as the loaded length increased from 20m to 40m. The bunching factor was corrected for notional lanes of widths less than 3.65m using the lane factors for loaded lengths less than 40m The extreme load effect determined as above considering worst porsche 356 tools for salw
Bridge Design HA and HB Bridge Loading Tutorial
WebNominal knife edge load (KEL) The KEL per notional lane shall be taken as 120 kN. Distribution The UDL and KEL shall be taken to occupy one notional lane, uniformly distributed over the full width of the lane and applied as specified in Clause 6.4.1 of the code. Dispersal No allowance for the dispersal of the UDL and KEL shall be made. WebFig. Number of notional lanes B. Lane Factors The Simultaneous Loading Factor is a coefficient introduced based on the fact that the probability of simultaneous loading of a design vehicle load on two or more lanes is relatively small … The adopted criteria describe design values for through travel lanes, auxiliary lanes, ramps, and turning roadways. There are also recommended widths for special-purpose lanes such as continuous two-way left-turn lanes. AASHTO also provides guidance for widening lanes through horizontal curves to provide … See more Speed is a primary consideration when evaluating potential adverse impacts of lane width on safety. On high-speed, rural two-lane highways, an increased risk of cross-centerline head-on or cross-centerline sideswipe … See more Lane width has an effect on traffic operations and highway capacity, particularly for high-speed roadways. The interaction of lane … See more In a reduced-speed urban environment, the effects of reduced lane width are different. On such facilities, the risk of lane-departure crashes is less. The design objective is often how … See more Designers should understand the interrelationships among lane width and other design elements. On high-speed roadways with narrow … See more iris flowers care and maintenance