Repair, protection and strengthening simpson strongtie. Management of bridges for strengthening and repair chalmers. Booth winchester bridge douglas county, or or movable span bridge of lions st. Epoxy concrete injection epoxy wood injection, epoxy crack repair epoxy structural concrete and wood repair waterproofing. Repair process problems often found in concrete bridge seats include the deterioration of concrete and the corrosion of reinforcing bars. Though different types of repair methods, materials, and elements are being considered, the objective of this research is to investigate the effectiveness of cfrp as a material to repair damaged pc bridge girders. Preliminary design of slender reinforced concrete highway bridge pier systems aleksandar kuzmanovic master of applied science graduate department of civil engineering university of toronto 2014 abstract feasible spantodepth ratios for many modern bridge systems have been identified and documented in. A special epoxy resin quakebond j333 was used that allowed the frp fabric to completely cure underwater and remain in full contact with the concrete pier surface even when subjected to strong underwater currents.
This practical guide covers all aspects of concrete bridge repair in sufficient depth to. In this paper, a new method for the construction of bridge piers is proposed. Our ability to work both above and below the waterline allows us to make repairs to concrete, masonry, and steel structures, either with or without a cofferdam. Customers typically choose concrete pier because it seems like a cheaper foundation repair option, but its not. The repair and strengthening of reinforced concrete rc structures with cfrp is a generally. This, however, is not an efficient use of materials. Sdot does not yet know if repair of the bridge is feasible technically or financially if repair is feasible, it could provide up to. The concrete repair, protection and strengthening solutions developed by simpson strongtie are the result of over 40 years of laboratory development, field. The manual also presents standard and experimental protection, repair, and rehabilitation. Repair of concrete in highway bridges a practical guide trl. Underwater bridge repair, rehabilitation, and countermeasuresnhi course 091a. Q we have a project consisting of repair of a pier on the atlantic ocean in a subtropical climate.
Maintenance, repair, and rehabilitation of concrete bridges the 379ftlong station street bridge in kankakee, ill. An evaluation of repair methods for cantilever bridge piers bysusan e. Concrete hinges and integral bridge piers request pdf. Bridge piers may be built using concrete, stone, or metal. Preventative maintenance for concrete bridge decks michael sprinkel, p. A horizontal crack along the face of the pier cap, 75 to 100 mm 3 to.
Augustine, fl fl metal truss tobias bridge jefferson county, in in metal truss new casselman river bridge grantsville, md md metal truss walnut street bridge mazeppa, mn mn. The other was a hybrid system, which uses a combination of. This bridge pier is one of two independent piers designed and constructed according to the standard design specification code that was in effect until 1980. This page contains a listing of all the approved bridge detail bd sheets that have been issued. When the same repair was conducted on a pier cap, cracking and. Development of knowledge base of concrete bridge maintenance. This is so that the repair mortar will bond and blend with the. An efficient method for the construction of bridge piers. In addition to this, during construction of the bridge, we established practices for traffic control in. Planned activities that are performed in advance of a need for repair or in advance of accumulated deterioration, so as to avoid such occurrences and reduce or arrest the rate of future.
All samples were located at an interface of class b footing and class a pier or stem wall concrete. Bridge construction manual guidelines to project supervisors bridge engineering page 2 revision. Th posttensioning bars wer e locate directly under th truss gusset plate s an jack figure 2. Repairs to concrete defects discovered after stripping should be repaired as soon as possible. Pier configurations shall be determined by providing the most efficient cast inplace concrete pier design, unless approved otherwise. University of pittsburgh, 2009 it is common practice that aging and structurally damaged prestressed concrete bridge members are taken out of service and replaced. Underwater bridge repair, rehabilitation, and countermeasures. Concrete elements submerged in water such as the bridge piers or columns, are. Sika solutions for the refurbishment of concrete bridges sika uk.
Preliminary design of slender reinforced concrete highway. On piers the extent of the coating may depend, to some extent, on appearance. Fhwa bridge maintenance manual substructure pdh online. One was a reinforced concrete system, in which mild steel deformed bars connect the precast concrete components. Such problems are caused by moisture and contaminants falling through leaking deck joints. Deterioration of jbar reinforcement in abutments and piers. External posttensioning over the service life of a prestressed concrete member, loss in presstress may occur due to a variety of reasons.
Components parts of a bridge concrete and steel bridges. The correct method to repair honeycombs in concrete. Bd sheets are intended to show how the typical parts that make up a bridge are to be detailed. One of the most common obstacles is finding the right pier to support your type of bridge. Virtual town hall west seattle bridge briefing seattle. Installing a model railroad bridge into a layout presents many unique challenges. Posttensioned bridges can be effectively rehabilitated by. From pier shafts over major rivers to bearing seats, there are many unique ways to repair bridges that will minimize track interruptions.
Compressive strength of concrete cube test pdf, procedure, results. This material is to be used for training purposes only. Reduced scale experiments were performed on a reinforced concrete pier of a bridge to check the validity of the proposed method. The only foundation repair methods allowed use steel piers. An evaluation of repair methods for cantilever bridge piers. Brennan can provide several specialty repairs that you wont find anywhere else. This new method utilizes precast prestressed concrete ppc panels as formwork in order to increase the efficiency of construction. Castinplace, grouting, epoxy injection, precast blocks and polymer bearing pads are just a few of the typical repair techniques employed by our crews to correct defective concrete. This study compared two precast concrete bridge pier systems for rapid construction of bridges in seismic regions. For a new bridge spanning the ottawa river between hawkesbury, ontario, and grenville, quebec, contractor dufferin construction co. Summary of types of concrete bridge piers defects and evaluation tools. Maintenance and repair practices for concrete bridge pier columns 32 figure 8.
The railway bridge crosses over a 2 lane access ramp to the victoria bridge and the lanes are quite narrow. Quakewrap carbon frp repair of underwater bridge piers. Steel for the construction of pier is used in very few cases till now. Reinforced masonry pier construction 1 of 3 home builders guide to coastal construction technical fact sheet no. Youll probably have to do it all over again in 310 years and foundation repair is more expensive the second time. Concrete is commonly specified as construction materials provided that the pier is submerged in water since metal is prone to rust in water. If a repair strategy required only removing and replacing the concrete deck in one span, a significant cost savings would be realized since the entire deck did not need to be replaced. It is constructed in many locations like waterways, dry lands on which highway systems are built as overpasses. Although bridges vary widely in material and design, there are many components that are common to all bridges. Investigation of chloride induced corrosion of bridge pier. The bridge pier model that was used in the experiment is shown in figure 4.
In coastal areas, masonry pier foundations are not recommended in v zones with erodible soils, or in a zones subject to waves and erosion use pile. The job consists of repairing the original concrete piles that have been damaged not only by the effect of the seawater but by mechanical abrasion due to ships. Final report case studies on the rehabilitation of. Methods for production of highstrength concrete pdf. Castinplace concrete and steel bridge oneofakind, uniquely designed. Techniques for concrete removal and bar cleaning on bridge rehabilitation projects. For both composites, the strategy to repair bridge pier column at early stage of corrosion damage, which is at the age of 25 year, was observed optimum, and the. Bridge beams and pier caps with selfconsolidating concrete at nimmo parkway celik ozyildirim, ph. In general, these components may be classified either as parts of a bridgeor as parts of a bridge substructure superstructure. Text and photos by steve malcolm, director, eastern iowa division. The following article is written with enough information about resin injection systems to help protect the owner from the misuse or improper installation of an injection systems. Honeycombs in concrete are voids found in finished concretes owing largely to poor compaction effort. Problems often found in concrete bridge seats include the.
Concrete arch carrollton bridge wabash river, in in concrete arch robert a. Similar deterioration has been reportedly observed between the pier column and. Bridges components parts of a bridge concrete and steel bridges parts and details. The repair solutions to two concrete deterioration problems are discussed. Wisconsin department of transportation bridge manual. The report addresses the partial removal of concrete from decks and other parts of bridge structures. The repair was accomplished for less than original cost estimates. Bridge bearing replacement transportation research board. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. The specimen is a onequarter 14 scale model of the actual bridge pier. In all cases, this interface appeared to be well prepared and, when observable, sound. Repair and strengthening of bridge substructures epublications.
Underwater bridge repair, rehabilitation, and countermeasures publication no. The pier is approximately 800 mm wide x 7 m long x 3. Repair of damaged prestressed concrete bridges using cfrp. Graduate research assistant introduction consolidation of concrete is a critical process in the construction of elements. Bridge piers placed by tremie concrete construction magazine. Structural repair of prestressed concrete bridge girders jarret lee kasan, m. It is intended as a practical guide for state highway agency and contractor. Pdf repair of reinforced concrete bridge columns containing. Precast concrete pier systems for rapid construction of. It was discovered that the majority of concrete bridges require repair within the first 11 to. The extent of concrete removal will be determined by the type of repair or. This system used load and resistance factors to ensure a stable bridge with sufficient strength.