Dynamic Method of Seismic Load Distribution
The Uniform Building Code static-force method (Art. 9.4) is based on a single-mode response with approximate load distributions and corrections for […]
Structural Analysis
Dome Roofs
These are preferable to arches where the large column-free area to be covered is circular, elliptical, or approximately an equal-sided polygon.
Distribution of Loads through Decks
Specifications of the American Association of State Highway and Transportation Officials (AASHTO) require that the width of a bridge roadway between
Displacement Methods
For analysis of a statically determinate or indeterminate structure by any of the displacement methods, independent displacements of the joints,
Determination of Wind Loads
Wind loading as described in Art. 9.1 is the basis for design wind loads specified in Minimum Design Loads for Buildings
Determinancy and Geometric Stability
In a statically determinate system, all reactions and internal member forces can be calculated solely from equations of equilibrium. However, if
Detailing for Weldability
Overdetailing of weld sizes and joint configurations can cause unnecessary fabrication and in-service problems and higher costs. Some designers believe
Detailing for Earthquakes
Bridges must be designed so that catastrophic collapse cannot occur from seismic forces. Damage to a structure, even to the
Detailing for Buckling
Prevention of buckling is important in bridge design, because of the potential for collapse. Three forms of buckling must be considered