The distance among stems of the DT girder bridges could be the same to reduce the number of DT girders. The live load for the rural bridges is obviously smaller than that for the highway bridges, HL93 live load (AASHTO 2017). Moreover, the spacing between stems of two adjacent DT girders is smaller than that between the stems of a DT girder, which decreases shear and moment transferring to the girders (Singh 2014 Rimal et al. Many bridges have been constructed by using the precast prestressed DT girders with their span length from 12.2 m to 18.3 m, and their depth of 584 mm (Rimal et al. The NEXT (Northeast Extreme Tee) beam, developed by PCI Northeast (Singh 2014), with a span length from 15 m to 24 m has more advantages than I-section or T-section beams. I-section beam, T-section beam, and spread slab beam exhibit more economical than slab beams, void slab beams, or box girders (Hueste et al. Many types of prestressed concrete beams such as slab beam, void slab beam, spread slab beam, or double-tee (DT) girder could be applied for rural bridge types B and C. Furthermore, casting a deck in situ consumes a lot of time, which also increases the total cost for rural bridge construction. This raises economic concern about the applicable structure since the economic span length of conventional I-section or T-section girders varies from 24 m to 33 m (AASHTO 2017). Some bridges, satisfied TCVN-10380 ( 2014) for the rural bridges, used precast prestressed I section concrete girders with cross-beams and concrete deck cast-in-situ (Fig. However, these exiting bridges do not satisfy the rural bridge types B and C (TCVN-10380 2014), in which the legal truckload requires at least 60kN, and the bridge width is 4 m and 5 m, respectively. These bridges are supported precast prestressed concrete girders with a legal truckload of 15kN to 35kN and a depth from 400 mm to 650 mm. 2) with a total width of 1.5 m to 2.5 m (World Bank 2016) have been built. For the last two decades, many rural bridges (Fig. A recent study (World Bank 2016) shows that the MD area requires about 20,000 small and medium-sized bridges with span lengths ranging from 8 m up to 15 m for current traffic demand. 1), also known as monkey bridges, have been temporarily constructed for pedestrians and motorcycles. Many restrictions on the Mekong River Delta (MD)’s rural road system exist due to complex canal networks and creek flows (SIWRP 2011). Therefore, the proposed DT girders are suggested to the rural bridges. Another finding is a linear elastic uncracked response of the tested DT girder under loads of a rural vehicle and concrete blocks of 306kN. Result finds out that the concrete sand, which the natural sand is replaced by 90% of the crushed sand and 10% of the fly ash by weight, could be well applied for the proposed DT girders. A full-scale DT girder with a span length of 12 m is tested to confirm the capacity of the proposed design. New concrete aggregate using crushed sand and fly ash for the DT girders is also examined to solve the scarcity of natural sand and environmental problem from industrial waste. An objective of this paper is to propose a double-tee (DT) girder with the span length varying from 12 m to 15 m for the rural bridge types B and C in the Vietnamese standard. Many types of bridge structures can be the suitable selection for rural bridges, on which the overall load of the operating truck is about 100kN. Let us provide the exact match.Our springers can be delivered raw metal (Standard)or color matched in either powder coat or epoxy paint, or chrome plated.Increasing the number of small and medium-sized bridges is a need to improve accessibility in rural areas of the Mekong River Delta of Vietnam. Trying to color match your frontend to your frame? Ride height with rear wheel in place to ensure a proper fitĪ: Measure vertically from ground to the bottom most part of the neckī: Measure vertically from ground to center of the front axleĬ: Measure overall neck length including cups, bearings, and dust covers NOTE: Position the frame level with the ground and set to final Narrow Glide Springersįinish Options – Raw, Powder Coating or Chrome Available in either powder coat or color match paint. Each Springer is shipped raw metal and comes with all hardware, including front axle, chrome springs, and stainless lower rockers. Every springer is custom built to order and calculated to give the best trail for your ride. The Executioner Springer frontends enable you to hurdle the wounded and trample the dead with a bulletproof ride. We produce 2 versions to choose from, a narrow and wide glide which allows for different style front wheels and hubs. Our Executioner Springers are handcrafted by machinist and bike builders, precision CNC machined and all TIG welded in-house.