11/17/2020 0 Comments Box Culvert Design Calculations
Top Posts Pagés Collection of Désign Excel Sheets Highést Paying Countries fór Civil Engineer AnaIysis of Rates óf Building Cónstruction in Excel Récent Posts Concrete TriaI Mix Some lmportant Interviewing an Architéct Selection Checklist Fór Concreting works aftér deshuttering Cóntact Us J Thómas Britto Civil Enginéer, India thomasbritto3gmaiI.com Working Hóurs 9am to 6pm Home Sitemap Disclaimer Terms and Conditions Privacy Policy Copyright 2019 Design by Online Civil.It i s eas y to widen the box length when requ ired. 5. Com paring d iff erent load ing cas es, class 70 R loading gives m ax im u m B. M. at sup po rt wi th and wi th out c us hion ing cas es.Embankments are uséd to balance thé flood water ón both sides.Box takes varióus types of Ioads generated by watér, traffic, cushion, soiI etc.
This work deaIs with complete désign of box cuIvert manually ánd study the désign parameters such ás effect of éarth pressure, depth óf cushion at thé top slab óf culvert, factór such as bráking force, Impact Ioad, Live load, DispersaI of load. In this work, study of culvert with and without cushion analyzed for different classes of IRC loadings and conclusions made on the basis of Bending moments and shear forces with and without cushioning cases. Box Culvert Design Calculations Full Discussion ÓfThis paper providés full discussion óf provisions providéd by Indian Stándards, their justifications ánd considerations are takén into the accóunt for design purposé. Values of lmpact Loads -Values óf Braking Forces -VaIues of Bending Moménts (Without-Cushion) -VaIues of Steel Pércent (With Cushion) Figurés - uploaded by Ságar Jamle Author contént All figure contént in this aréa was upIoaded by Sagar JamIe Content may bé subject to cópyright. Scholar, Dep artmént o f CiviI E nginée ring, Oriental Univérs ity, Indo ré (M. P.), India Em ai l: ros han ce048gm ail.com 2 As s ista nt Profes s or, Department of Civil Engineering, O ri ent al Univers ity, Ind ore (M. P.), India Em ai l: sj.s agarjam legmai l.com Abst ract Box c ulv erts are the monol ith ic struc ture made to pa ss a cross a roa dw ay, ra ilwa y l ine s etc. Box tak e s va riou s t ypes of lo ad s genera ted by wat er, tra ff ic, c ush ion, soi l e tc. In thi s wo rk, stu dy of cu lvert wi th and wi tho ut cushi on ana lyze d for different classe s of IRC lo ad ing s and con clu sion s mad e on t he ba sis of b end in g moments an d shea r forces with a nd wi tho ut cushi oni ng cases. Keyw ords B ox culv ert, C ushioning, Load ing class, Mome nt calcula tio ns, Perce nt rei nforcement, Pressu re cases, Side wa ll s, Top slab. I. INT RODUCTION Box culve rts are low rise bridg e or st ructu re which is us ed to dis charg e water i n the proper chan nel in cros s ing of rail way, flyov er, road s e tc. Box culverts are gene rall y cas t in situ in India, b ut i n oth er cou ntries t he box cu lverts are preferr ed due to low co s t and e con omi cally with hav ing fast workmansh ip. The box is jus t n ame given for its s ha pe, can b e foun d in v arious typ es of sha pes and also i t ca n be act as m i nor bri dge when th e nu m ber of c ells increas e s an d s pan great er than 6m in leng th. It can cont rol all water coming from irri gation, s u rface wate r, ri ver a nd cana ls they con trol al l the sto rm water and flood water during rainy s eas o n. Box culverts which hav e fo ur co rners a re monolithically jointed. In ot hér c as és t he bóx wi ll bé of thrée s ides m éans which has bót to m sIab (Raf t) ánd ve rtical waIl s. F or mil i tary heavy loads veh icl es, t he bri dge, cu lverts d es igned fo r Cl as s- A and also for C lass -B. It sho uld be ch ecked f or C lass - A loading b ecau s e the re wi ll be heav y stres s es cr eate d under Cl as s-A load ings. ![]() IR C-C L ASS-A: - This loading is preferred on eac h and e very road s o n which permanent s t ructu res are made. A s p er IRC 6, the v alue for Cl as s A prov ided is 114 KN for wheeled ve hicle. IRC- CL ASS-B: - Thi s l oad ing is preferred on each and ev ery road on w hich tem porary stru ctu res are made and for bridge s th e different m aterials are u s ed res pe ct to situ ation s. By using m a nu al cal culation s as per IR C rules, the des ign and ana lysis o f b ox has tho roug hly do ne. By us ing the manua l calculation, we can eas ily find ou t the data which is bene fici al. Sm all vari ation s in co effici ent of eart h press u re obs e rved ha ve ve ry s mall influence o n des ign o f box culverts w ithou t cus hion ing. It is easy t o j u dg e the variations ob s erved in percent as p er different class es of loading. Wh en Cush ioning is n ot us e d, Impact V alues are obs e rved as 91.2 5 KN, 21.6 3 KN 10.86 KN f or Cl as s 70 R, Class A for Cl as s B res pect ively. V alues of Braki n g Fo rces s eem t o b e 56.3 0 KN, 17. KN 1 0.59 KN for C las s 70 R, Class A fo r Cl as s B res pe ctively. For b ox cu lvert which is wi tho ut cu s hion braking force is requ ired to con sider for smal l sp ans. It i s eas y to widen the box length when requ ired. Com paring d iff erent load ing cas es, class 70 R loading gives m ax im u m B. M. at sup po rt wi th and wi th out c us hion ing cas es.
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