PPT-Presentation on Hydrodemolition of Concrete and Bridge Stru

2014 Virginia Concrete Conference Richmond Virginia March 6 2014 Outline for Today Definition of Hydrodemolition Different types of Hydrodemolition Hydrodemolition Equipment Applications for Hydrodemolition. Structures. Source: AREMA Ch. 8.3,8.4. “Transportation exists to conquer space and time -”. Bridge Types. Timber . Trestles. Picture sources: http://members.cox.net/sn3nut/trestles%20part%201.htm. Bunker Creek Bridge, Durham NH. By: Elizabeth Kinney. Advisor: Dr. Charles Goodspeed. Background:. Originally built in the 1930’s. Various repairs through the year. Substructure mostly original. Considerations:. Reid W. Castrodale, PhD, PE. Director of Engineering. Carolina Stalite Company, Salisbury, NC. In early 1900s, Stephen Hayde discovered method to manufacture lightweight aggregates (LWA) from shale, clay and slate. Group #6: Chris Wong, Andrew Yang and Esther Roorda. . . Hua Liu, . Zeqian. Li (Student). Lin Yin (Visiting Faculty Advisor). Jian Zhao (Advisor). University Of Wisconsin-Milwaukee. Introduction. Prestressed concrete girders. Laboratory test: expensive; limited results. Presented . by. :. Parkinson . Enina. . Erhunse. . MNIQS. , . RQS. Procost. Consult, Box 1228, . Gombe. , . Gombe. State.. ( . GSM. No: 08032866662 ).  .  .  .  .  .  .  .  .  . In Nigerian Institute of Quantity Surveyors (. INSPECTION AND MAINTENANCE. . Dr. . Mohd. . Haziman. B Wan Ibrahim. Why We Inspect Bridges . . Bridge Inspection. Bridges are key element in the road network. It is therefore necessary to manage the bridges properly and systematically to ensure that bridges are always in good condition and bridge inspection plays an important part in bridge management system.. Design options. Overview of recent projects. Specific project details. Performance tested in Lab. AIT’s services “ How can we work with you? ”. Composite Arch “Bridge-in-a-Backpack” System. Project location. IA 92 over Small Natural Stream, 1.0 mile west of Jct. IA 148. Project location. Existing structure. 40’ x 30’ Steel I-beam. Constructed 1930. Reconstructed 1949. Overlay 1968. Retrofit rail 1992. 1. Presentation created by David Garber (. Assistant Professor. , FIU). What is Structural Engineering?. Buildings. Bridges. 2. A History of Bridge Engineering. 3. 1781. 1300 BC. 1889. 1883. 1911. 1951. 2. What is Concrete?. A mixture of various components which chemically react to form a strong construction material. Unit Weight – normal 2400 kg/m. 3 . or semi 1900 kg/m. 3. Component Ratios:. Cement (10 to 15%). and Bridge Rehabilitation Program. Anthony Mizumori, . PE, SE. DeWayne Wilson, . PE. Washington State Department of Transportation. Center for Environmentally Sustainable Transportation in Cold Climates. . Dr. . Mohd. . Haziman. B Wan Ibrahim. Why We Inspect Bridges . . Bridge Inspection. Bridges are key element in the road network. It is therefore necessary to manage the bridges properly and systematically to ensure that bridges are always in good condition and bridge inspection plays an important part in bridge management system.. thema 3 Second Wuhu Bridge Design Overall The approach bridges (from movement joint to movement joint) Approach Bridge of Second Wuhu Bridge 3 The approach bridges of the Second Wuhu Bridge under con