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- Keyword
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- CONIBM (Steel I-Beam (Rolled) (2)
- COPCSS (Concrete Precast Slab Units) (2)
- LWPCSS (Lightweight Concrete Precast Slab Units) (2)
- 000 bridges that allow the passage of people (1)
- 1600 (12%) of Louisiana's 13 (1)
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- A machine learning framework for estimating the number of load-posted bridges within a regional bridge portfolio would be extremely valuable in the future for allocating essential resources during long-term planning (1)
- And Concrete Deck Girder (CODEKG) had the least number. (1)
- And Concrete Deck Girder (CODEKG) had the least number.uncertainty in the number of load posted bridges was estimated by training random forests using different bootstrap samples (1)
- And services are load posted (1)
- Bridge impact; crash beam; damage mechanics; energy dissipation; early warning detection; overheight vehicle (1)
- CODEKG (Concrete Deck Girder) category bridges (1)
- CODEKG (Concrete Deck Girder) category bridges.. Load posting decision was made for each bridge using the predictive model. In a particular year (1)
- Concrete Slab (COSLAB) had the highest number of load-posted bridges in the next 50 years (1)
- Geopolymers (1)
- Goods (1)
- Load-posted bridges were predicted by replacing the time-varying attributes with their future predicted values. Concrete Slab (COSLAB) had the highest number of load-posted bridges in the next 50 years (1)
- Meaning they are deemed incapable of securely carrying all legal loads. A machine learning framework for estimating the number of load-posted bridges within a regional bridge portfolio would be extremely valuable in the future for allocating essential resources during long-term planning. This research mainly focused on COSLAB (Concrete Slab) (1)
- Recycled concrete aggregates (1)
- This research mainly focused on COSLAB (Concrete Slab) (1)
- Publication Type
Articles 1 - 4 of 4
Full-Text Articles in Engineering
Incorporating Geopolymer Binders To Fully Utilize Recycled Concrete Aggregates, Matthew Upshaw
Incorporating Geopolymer Binders To Fully Utilize Recycled Concrete Aggregates, Matthew Upshaw
LSU Doctoral Dissertations
This study aims to develop a geopolymer concrete binder that will yield desirable strength and durability characteristics when applied to recycled aggregate concrete. In order to achieve this, a geopolymer binder consisting of a metakaolin-silica fume aluminosilicate source material blend activated by potassium-based alkaline solutions is developed and used in place of ordinary Portland cement (OPC) with four different levels of recycled aggregate replacement ratios. The properties of these concretes were analyzed and compared with the properties of OPC concretes produced with the same replacement ratio levels. The results showed that the geopolymer recycled aggregate concrete (GRAC) achieved greater than …
Machine Learning-Based Bridge Load Posting Prediction, Sai Naga Sasi Aditya Bandaru
Machine Learning-Based Bridge Load Posting Prediction, Sai Naga Sasi Aditya Bandaru
LSU Master's Theses
1600 (12%) of Louisiana's 13,000 bridges that allow the passage of people, goods, and services are load posted, meaning they are deemed incapable of securely carrying all legal loads. A machine learning framework for estimating the number of load-posted bridges within a regional bridge portfolio would be extremely valuable in the future for allocating essential resources during long-term planning. A framework of this type is necessary since a significant proportion of the bridges are load posted. Furthermore, deterioration due to aging and future increases in legal loads can compound this situation. In this setting, there is a lack of data-driven …
Machine Learning-Based Bridge Load Posting Prediction, Sai Naga Sasi Aditya Bandaru
Machine Learning-Based Bridge Load Posting Prediction, Sai Naga Sasi Aditya Bandaru
LSU Master's Theses
1600 (12%) of Louisiana's 13,000 bridges that allow the passage of people, goods, and services are load posted, meaning they are deemed incapable of securely carrying all legal loads. A machine learning framework for estimating the number of load-posted bridges within a regional bridge portfolio would be extremely valuable in the future for allocating essential resources during long-term planning. A framework of this type is necessary since a significant proportion of the bridges are load posted. Furthermore, deterioration due to aging and future increases in legal loads can compound this situation. In this setting, there is a lack of data-driven …
A Case Study Of Protecting Bridges Against Overheight Vehicles, Aly Mousaad Aly, Marc Hoffmann
A Case Study Of Protecting Bridges Against Overheight Vehicles, Aly Mousaad Aly, Marc Hoffmann
Faculty Publications
Most transportation departments have recognized and developed procedures to address the ever-increasing weights of trucks traveling on bridges in service today. Transportation agencies also recognize the issues with overheight vehicles’ collisions with bridges, but few stakeholders have definitive countermeasures. Bridges are becoming more vulnerable to collisions from overheight vehicles. The exact response under lateral impact force is difficult to predict. In this paper, nonlinear impact analysis shows that the degree of deformation recorded through the modeling of the unprotected vehicle-girder model provides realistic results compared to the observation from the US-61 bridge overheight vehicle impact. The predicted displacements are 0.229 …