Recent content by struct4me

Would like to know the selection criteria? Mine is having discharge of 1 m3/s and Pump head in the range of 300 m. The length of the raising main in the range of 30-40km. looking for your answers... Raj

Dear All.. why this bond breaking material is used around steel pipe and embedded backfill concrete. Thanks!!

Thanks..LittleInch & HTURKAK Regarding the video, we will not be taking all, as I told you I need a temporary cantilever arrangement to access the right abutment and if I can do that, I can erect the bridge from left with Incremental launching method, there is no dearth in space in left side...

Okay I got it, tunneling from the further end to the bridge location will take more than a year, so the plan is to build the permanent truss and excavated the tunnel downstream of the bridge from both side to reduce tunneling time. The permanent bridge would carry the tunneling equipment load...

Hi.. The problem due to some clearance issue where you can not launch from the bottom and since when you say it will meet the two, I mean that you want assemble at the bottom stream level and then lift the bridge for 70m.Tunnel- bridge alignment is above 70m from the stream bed level. And...

Apology, sending the PDF copy...Title block I have withdrawn due to property right issue. Thanks for yours feedback.https://files.engineering.com/getfile.aspx?folder=a5dc8940-5b3c-4362-bf2d-ff6ecb4e9821&file=Aqueduct.pdf

L-section.. access is from left side..https://files.engineering.com/getfile.aspx?folder=3881f8a3-81b2-428b-8581-dd62d9414646&file=Section-_enlarged_section_for_bridge_assembly,_later_to_concreted.JPG

Plan...https://files.engineering.com/getfile.aspx?folder=03a3dfa4-2e01-4de5-a99d-29ca1540034f&file=Plan.JPG

Attachments!!https://files.engineering.com/getfile.aspx?folder=a85dada6-d585-4bd6-bae0-994e7d9c47fa&file=Cross-Sections.JPG

Thanks dhengr !! For your reply, the pipe is one number 4 m dia, will be taken over the Pratt type steel truss with concrete pedestal. Actually water coming from the tunnel is taken through the pipe to cross the stream below. Scaffolding seems difficult from the bottom river which is 70 m...

Thank HTURKAK Your assumptions are right, plan was to build a pratt type truss as I attached in my first post, the bridge to be launched through incremental method, however the problem was not anticipated was the approach to the right abutment which is not accessible, so how to prepare the...

yes, I like the launching of pipe by counter weight method from one side and after I transport man, material through empty pipe (penstock) to other side & prepare the abutment that side, then we can take away the pipe, install the bridge and then supported one pipe on the bridge on concrete...

Hello.. I need some expertise views in Bridge Launching aspect, we are building a aqueduct (steel bridge Pratt type) for carrying water under pressure through steel pipes over the bridge. The pipe starts from an Underground tunnel and after crossing the bridge ends in the tunnel on the other...

Thanks everyone for sharing your viewpoints, well appreciated. Many Thanks!!

"Which WAS the CODE ??" This is as per Indian concrete Code IS 456, which under its working stress (WSM) Annexure (now WSM is part of Annexure, where LSM are in the main code) says the following under a table (Pic) I always have taken it for granted without asking why...