I am looking for information on manufacturers of borosilicate blocks commonly used for chimney liners. The only product I am aware of is Pennguard block manufactured by Hadek. It is an excellent productr, but some of our customers ask for alternate sources. If you are aware of other producers...
Kevin:
http://www.techstreet.com/cgi-bin/detail?product_id=41705
If you need a publication, take advantage of available technology:
Step 1: Go to Google
Step 2: Using advanced search type title e.g."Metric Practice for Structural Steelwork"
Step 3: Review 131 or more returned results -...
AASHTO Guide Spec for Design of Pedestrian Bridges
allows for live load reduction if deck influence area exceeding 400 psf. This reduction is allowed for design main structural members. The reduction formula is reasonably based on reduced probability of large influence areas being loaded to...
I have to disagree with lllatin's comment that "any contractor will be comfortable with whatever cage the designs calls for". That may be the case in those regions where ACIP piles are prevalent type of deep foundations....
The real issue is - why design engineer would select a full length...
All:
Great discussion. [thumbsup]
Here are my questions for experienced participants of this forum:
1)Are there any practical limitations for the length/diameter of reinforcing cage? DFI spec Sec. 1.3.indicates that piles with slenderness over 30 require experienced design professionals and...
In order to determine local building code requirements for snow loads in Poland you need to obtain the following document:PN-80/B-02010 "Obciazenia w obliczeniach statycznych. Obciazenie sniegiem " . This document can be ontained from Polish Commitee for Standardisation, i.e.:
Polski Komitet...
Ujiell:
Here are few pointers:
1)For integral bridges with steel superstructures, you can download a publication "Integral abutments for Steel Bridges" which is available from this site:
http://www.steel.org/infrastructure/bridges/index.html
2)Continuous and Integral Bridges...
In this particular case, project requires scissor truss spanning 95 ft over a church assembly hall. The architect insists on wood truss because of its "visual appeal".
The scissor truss could be shipped in two components 42.5 ft long each and spliced on site at the center. I am not...
I am looking for references or examples of project application of long span wood/glulam trusses (US experience preferred). My current project involves roof trusses spanning nearly 100 ft over assembly hall. It probably can be done but I am personally not familiar with wood roof trusses exceeding...
Greetings!
Here are my rules of thumb for structural engineers and not only:
1) It is better to find approximate solution to an exact problem than to find an exact solution to approximate problem.
2) Instead of learning tricks of trade - learn the trade!
1) How to account for reduced capacity of steel HP pile, which is inserted into prebored hole to minimize driving resistance?
Preboring or pre-drilling is used frequently on bridge projects to facilitate installation of steel piles in fills or hard clays. Piles are inserted in holes prebored to...
I am looking for recommended details of joints between individuals panels of concrete slurry walls. The project involves 150 ft deep, 60 ft diameter shaft. Concrete slurry wall is one of the contemplated options. However panel joint integrity and groundwater leakage into the shaft is a major...
Presence of ground water on the soil side of concrete panels (approx. 80 ft abpve the bottom of the shaft). is the cause of our concern. We are considering using CWS (Couffrage avec waterstop) jonts patented by Bachy Soletanche. However, I am not aware of any recent applications of CWS in the...
I am looking for recommended details of joints between individuals panels of concrete slurry walls.
The project involves 150 ft deep, 60 ft diameter shaft. Concrete slurry wall is one of the contemplated options. However joint integrity and prevention of groundwater from leaking into the shaft...
