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Crack detection at concrete construction units from photogrammetric data using image processing procedures
Photogrammetry Change detection Tracing
2015/8/20
Cracks on the surface of a concrete construction are measured and evaluated by a digital photogrammetric method. Knowing these
cracks, the behaviour of the construction, especially using textile rein...
Monitoring Crack Origin and Evolution At Concrete Elements Using Photogrammetry
Change Detection Tracing High resolution
2015/7/15
Controlling and monitoring of crack origin and evolution of concrete elements is an important task in research of building materials.
The efficiency of the reinforcement to the bearing capacity depen...
Measurement of Shrinkage In Concrete Samples By Using Digital photogrammetric Methods
Calibration Close Range Adjustment
2015/7/14
This paper shows the use of digital photogrammetry for measurement of shrinkage in concrete sample (4x4x22 cm) during the hydration
process. A vision system consist of two digital video cameras was e...
MEASUREMENT OF DEFLECTIONS IN CONCRETE BEAMS BY CLOSE-RANGE DIGITAL PHOTOGRAMMETRY
digital photogrammetry deflection measurement structural testing
2015/3/13
MEASUREMENT OF DEFLECTIONS IN CONCRETE BEAMS BY CLOSE-RANGE DIGITAL PHOTOGRAMMETRY.
Interfacial Strength Between Prestressed Hollow Core Slabs and Cast-in-Place Concrete Toppings
Interfacial Strength Prestressed Hollow Core Slabs Cast-in-Place Concrete Toppings
2014/10/22
The horizontal shear strength of the interface between prestressed concrete hollow core slabs and cast-in-place concrete topping slabs was evaluated through a set of 24 push-off experiments. The push-...
ENHANCING CONCRETE BARRIER REFLECTIVITY WITH A FOCUS ON RECYCLED GLASS AGGREGATE REPLACEMENT
CONCRETE BARRIER REFLECTIVITY RECYCLED GLASS AGGREGATE REPLACEMENT
2014/10/22
Increased accident rates during the nighttime and wet weather conditions on theUnited States highways necessitate the enhancement of highway concrete barrier visibility. The visibility of these deline...
PERFORMANCE EVALUATION OF EXISTING STEEL AND CONCRETE GIRDER BRIDGES THROUGH NON-DESTRUCTIVE LIVE-LOAD TESTING
EXISTING STEEL CONCRETE GIRDER BRIDGES NON-DESTRUCTIVE LIVE-LOAD TESTING
2014/10/22
Traditional evaluations of a bridge behavior are based upon assumptions of material properties, load distributions in the bridge deck, any quantified structural damage from visual inspections, and the...
Anchorage of Carbon Fiber Reinforced Polymers to Reinforced Concrete in Shear Applications
Carbon Fiber Reinforced Polymers Reinforced Concrete Shear Applications
2014/10/22
Due to ongoing deterioration and lack of maintenance, a need to rehabilitate and lengthen the serviceable lifetime of deteriorated structures has grown. The crucial cause in the deterioration of our i...
Ultrasonic Detection Algorithm Research on the Damage Depth of Concrete after Fire
Concrete Fire damage Damage depth Ultrasonic wave
2014/4/10
To measure the depth of fire-damaged concrete by ultrasonic method, it was traditionally assumed that the concrete of the fire-damaged structural member could be simply classified into damaged layer a...
THE TRANSFORMATION FROM GREEN TO CONCRETE CITIES; A REMOTE SENSING PERSPECTIVE
Green Cities Concrete Cities Remote Sensing Google Earth GeoEye Transformation Analysis
2014/4/24
Cities especially in developing countries have been experiencing dramatic transformation as a result of rapid urbanization. For instance, the rate of urbanization in Kenya since independence in 1963 i...
Effects of Recycled Tires Rubber Aggregates on the Characteristics of Cement Concrete
Rubber Waste Tires Concrete Mechanical Response Shrinkage
2013/1/31
This experimental work investigates the impact of substituting part of the conventional aggregates with rubber aggregates on certain characteristics of the cement concretes. This incorporation of rubb...
Achievements of Truss Models for Reinforced Concrete Structures
Reinforced Concrete Structure Truss Model Constitutive Law Material and Geometric Nonlinearities Concrete Cracking Reinforcement Yield Concrete Ultimate Compressive Strength Plastic Hinge RC Column Confinement Buckling of Inner Concrete Struts Global Instability
2013/1/31
Achievements are presented for truss models of RC structures developed in previous years: 1. Two constitutive models, biaxial and triaxial, are based on regular trusses, with bars obeying nonlinear un...
Improvement of Concrete Shear Wall Structures by Smart Materials
Smart Material Shape Memory Alloy Shear Wall Superelasticity Seismic Behavio
2013/1/31
Smart materials have found numerous applications in many areas in civil engineering recently. One class of these materials is shape memory alloy (SMA) which exhibits several unique characteristics suc...
Utilization of Industrial Waste Slag as Aggregate in Concrete Applications by Adopting Taguchi’s Approach for Optimization
Compressive Flexure and Split Tensile Strength Slag Aggregate Taguchi’S Approach
2013/1/31
This paper presents result of an experimental investigation carried out to evaluate effects of replacing aggregates (coarse & fine) with that of Slag (Crystallized & Granular) which is an industrial w...
ESTIMATION OF VERTICAL DEFLECTIONS IN CONCRETE BEAMS THROUGH DIGITAL CLOSE RANGE PHOTOGRAMMETRY
camera laser scanning convergent acquisition monitoring surface reconstruction point cloud
2014/6/5
Deformation monitoring, and in general structural health monitoring, of civil infrastructure systems is important in terms of both safety and serviceability. Traditionally, large structures have been ...