Structural Damage Caused by the 1976 Guatemala Earthquake

National Science FoundationResearch Grant ATA 74 2296

Variation of the Liouville measure of a hyperbolic surface

For a compact riemannian manifold of negative curvature, the geodesic foliation of its unit tangent bundle is independent of the negatively curved metric, up to Holder bicontinuous homeomorphism. However, the riemannian metric defines a natural transverse measure to this foliation, the Liouville transverse measure, which does depend on the metric. For a surface S, we show that the map which to a hyperbolic metric on S associates its Liouville transverse measure is differentiable, in an appropriate sense. Its tangent map is valued in the space of transverse Holder distributions for the geodesic foliation.Comment: AmsLaTeX with package epsfig, 27 pages, 3 figures; one argument corrected in Section 7, minor improvements elsewhere; to appear in Erg. Th. Dyn. Sys

An Experimental Study of a Flat Slab Floor Reinforced with Welded Wire Fabric

Reinforced Concrete Reserach CouncilOffice of the Chief of Engineers, U.S. Army.General Services Administration, Public Buildings ServiceHeadquarters, U.S. Air Force. Contract AF 33(658)-47U.S. Navy, Engineering Division. Bureau of Yards and Docks. NBy 3763

Issued as a Part of Progress Report No. 13 of The Investigation of Prestressed Reinforced Concrete for Highway Bridges; Project IHR-10, Illinois Cooperative Highway Research Program

The Division of Highways. State of Illinois.The Bureau of Public Roads. U.S. Department of Commerc

The Effects of Pattern Loadings on Reinforced Concrete Floor Slabs

Reinforced Concrete Reserach CouncilOffice of the Chief of Engineers, U.S. Army.General Services Administration, Public Buildings ServiceHeadquarters, U.S. Air Force, Directorate of Civil Engineering.U.S. Navy, Engineering Division. Bureau of Yards and Docks. NBy 3763

Issued as a Part of the Eleventh Progress Report of the Investigation of Prestressed Reinforced Concrete for Highway Bridges

The Division of Highways. State of Illinois.The U.S. Department of Commerce. Bureau of Public Roads.Project IHR-1

Issued as a Part of Progress Report No. 14 of The Investigation of Prestressed Reinforced Concrete for Highway Bridges; Project IHR-10, Illinois Cooperative Highway Research Program

The Bureau of Public Roads. U.S. Department of CommerceThe Division of Highways. State of Illinois

Investigation of prestressed reinforced concrete for highway bridges, part V, analysis and control of anchorage-zone cracking in prestressed concrete

Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, University of Illinois at Urbana-Champaign