Study On The Bridge Aqueduct Structure Design Method Of The Manas River

Aqueduct, widely applied in hydraulic engineering, is the engineering building which can realize theconnection of each water conveyance system, especially in the hills or rivers region in the absence of waterchances. Eighth division of xinjiang production and construction corps manas river basin is located in thecore area of the north slope of Tianshan mountains economic development zone and watershed area isnearly two square kilometers. The development of the manas river basin begined from1950s, and havebuilt comprehensive utilization of water conservancy project such as water diversion, water storage, powergeneration, etc successively. The aqueduct has become an important part of the water conservancy project.Based on this, in the paper, we compared and analyzed the aqueduct bridge, one of the xinjiang manas riverpower station project, on different structure forms type design and draws some meaningful conclusions asthe following aspects:(1) Longitudinal structure form of aqueduct is compared, the results show that double cantilever typeselection of longitudinal bending moment can decrease the bending moment and shear force of the structure,reduce the deflection of tank body and improve the bearing capacity.(2) Using different design theory to analyze of the forced state of a tub, and establishing athree-dimensional finite element analysis model, we compared vertical and horizontal beam aqueduct andmulti-longitudinal beams aqueduct and the results show that after adding aqueduct in vertical andhorizontal force decreases, the displacement and stress distribution is more even, which enhanced the crackresistance of the aqueduct, improved the force of the structure, reduced material consumption andreinforcement amount.(3) Appling fluid-solid coupling analysis method—Westergaard additional quality standard ofaqueduct considering the dynamic water pressure, no vertical and horizontal beam aqueduct andmulti-longitudinal beams aqueduct was modal analysisd, extracting the first ten order vibration mode andfrequency, and the vibration mode and frequency are compared. Results show that the longitudinal beamaqueduct starting to torsional vibration model of time delay than vertical and horizontal beam aqueduct andillustrated that adding vertical and horizontal beam can improve the tub stiffness and seismic capacity.Changing the liquid level in the aqueduct can concluded that the overall quality of aqueduct structureincreased and the frequency of structural natural vibration reduced with the increase of aqueduct waterlevel.(4) The located field seismic wave is input, we selected feature points to analyze displacement andstress time history and the change of the stress and displacement of different structure forms of aqueductunder the action of seismic wave feature points. and conclude that the maximum stress and displacement ofmultiple longitudinal beam aqueduct is smaller than no vertical and horizontal beam aqueduct, andvolatility is more slower.Summary: Bridge-type aqueduct can satisfy water transport function and traffic function and in weight,dynamic water pressure, vehicle load, wind load and earthquake load on vertical and horizontal beam under the action of the aqueduct with multi-longitudinal beams aqueduct bearing capacity were analyzed, theresults show that multi-longitudinal beams, compared with vertical and horizontal beam aqueduct, can savematerial consumption, improve the stress distribution and the crack resistance of the aqueduct andanti-seismic ability, the analysis results can provide reference for the similar structure design of theaqueduct.