CivilEA.com
  • Subscribe !
  • Register
  • Login
  • Home
  • Members
  • Help
  • Search
Civil Engineering Association Portal

Welcome, Guest
You have to register before you can post on our site.

Username
  

Password
  





Search Forums

(Advanced Search)

Forum Statistics
» Members: 133,975
» Latest member: rbvc
» Forum threads: 31,903
» Forum posts: 105,748

Full Statistics

Latest Threads
Engineering Guide for Woo...
Forum: Books and Codes Request
Last Post: toddyi
08-22-2026, 09:47 AM
» Replies: 0
» Views: 159
Future Homes Domestic Arc...
Forum: Own-Copyrighted Material
Last Post: Mattew
08-17-2026, 08:51 PM
» Replies: 0
» Views: 164
ACI Collection of Codes, ...
Forum: Own-Copyrighted Material
Last Post: poolmand
08-09-2026, 12:50 PM
» Replies: 4
» Views: 45,919
ASCE Paper (Ultimate Capa...
Forum: Theses, Journals and Papers Request
Last Post: civilfafa
07-27-2026, 06:34 AM
» Replies: 0
» Views: 326
ESDU 21004: The Statistic...
Forum: Theses, Journals and Papers Request
Last Post: civilfafa
07-25-2026, 01:20 AM
» Replies: 0
» Views: 307
ACI 303: Cast-in-Place Ar...
Forum: ACI
Last Post: Administrator
07-21-2026, 10:11 AM
» Replies: 0
» Views: 292
ACI 231.1: Managing and I...
Forum: ACI
Last Post: Administrator
07-21-2026, 09:35 AM
» Replies: 0
» Views: 237
ACI 308: Curing of Concre...
Forum: ACI
Last Post: Administrator
07-21-2026, 09:30 AM
» Replies: 0
» Views: 279
From War and Internet Bla...
Forum: CivilEA News
Last Post: jacky899
07-21-2026, 03:42 AM
» Replies: 27
» Views: 2,194
Original CSI license bein...
Forum: Csi Products
Last Post: Bhawk
07-14-2026, 03:31 PM
» Replies: 0
» Views: 319

 
  New French pavement generates electricity
Posted by: rendel_© - 04-13-2010, 10:29 AM - Forum: Free Discussion - No Replies

TOULOUSE (France), April 10: Pedestrians are using specially designed pavements to generate electricity in a two-week energy-saving trial in the French city of Toulouse.

The group of paving slabs installed in the city centre can generate 30 watts of electricity, enough to power overhead street lights. The pavement was invented by Dutch firm Jaap Van der Braak.

"It is an experiment for now, but this system, unique in the world, allows us to anticipate a whole series of applications for the city," the deputy mayor in charge of sustainable development, Alexandre Marciel, told Reuters.

The paving slabs contain micro-sensors that capture the energy created by people walking on them, and store it in a battery. This could enable the city to collect electricity during the day for use at night when there are fewer people on the streets.


Pavement which produces electricity – by walking on it (every step by step)

In France scientists develop pavement which produce electricity while people walk on it. Pressure pads under pavements could generate electricity from walking over it.

In pavement there are micro sensors which collect electricity while people walk over it and save it into batteries. This pavement can produce electricity during the day (when there is more people) and released it in to public light over the night.

Pavement is sensitive on touch and transforms energy of the motion into electricity. Pavement can provide up to 30 Watts of electricity which is enough for public light.

Generally pavement is the durable surface material laid down on an area intended to sustain vehicular or foot traffic. In the past cobblestones and granite setts were extensively used, but these surfaces have mostly been replaced by asphalt or concrete. Such surfaces are frequently marked to guide traffic. Today, permeable paving methods are beginning to be used for low-impact roadways and walkways.

The term road metal refers to the broken stone or cinders used in the repair or construction of roads or railways and is derived from the Latin metallum, which means both mine and quarry. Metalling is known to have been used extensively in the construction of roads by soldiers of the Roman Empire but a limestone-surfaced road, thought to date back to the Bronze age, has been found in Britain.
Metalling has had two distinct usages in road surfacing. The term originally referred to the process of creating a gravel roadway. The route of the roadway would first be dug down several feet and, depending on local conditions, French drains may or may not have been added.
Next, large stones were placed and compacted, followed by successive layers of smaller stones, until the road surface was composed of small stones compacted into a hard, durable surface. Road metal later became the name of stone chippings mixed with tar to form the road surfacing material tarmac.

Print this item

  SOIL DYNAMICS - Arnold Verruijt
Posted by: Dell_Brett - 04-13-2010, 09:46 AM - Forum: Foundation & Geotechnics in general - Replies (8)

SOIL DYNAMICS - Arnold Verruijt

[Image: 26918571789832274309.jpg]

[Image: info.png]

PDF format (excellent quality) - 365 pages.
Book plus 6 programs (didactic purpose)

The book mainly presents theoretical solutions of problems of elastodynamics, as applicable in soil dynamics, with emphasis on the full derivation of all solutions, using integral transform methods. These methods are presented briefly in an Appendix. The elastostatic solutions of many problems are also given, as an introduction to the elastodynamic solutions, and as a possible limiting state of the corresponding dynamic problems. For a number of problems of elastodynamics of a half space exact solutions are given, in closed form, using methods developed by Pekeris and De Hoop. Also some approximations are presented in which the horizontal displacements are disregarded, an approximation suggested by Westergaard.
This book contains the lecture notes for the course on ”Soil Dynamics”, as given at the Delft University of Technology.

The book is distributed together with some computer programs to further illustrate the solutions.

[Image: screen.png]
[Image: 66557061525494506584.jpg]

[Image: 88649707248730183365.jpg]

(image of one of attached program:)
[Image: 21383508529193307558.jpg]


[Image: Download.png]

Code:
*************************************** Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation: http://forum.civilea.com/thread-27464.html ***************************************

(All credits goes to Rokoku friend)

Print this item

  Wind Code for Haiti
Posted by: Arigato - 04-13-2010, 09:08 AM - Forum: Archive - Replies (1)

Guys, do any of you know the Wind Code used in Haiti ?

Im aware that Haiti never implemented nor has a standard building code (reason why many buildings damaged during the earthquake), but is there a code that is used as a reference that is applicable for Haiti Wind loading/design?

I will be designing a telecom structure in that country but I am aware it is within the hurricane belt of the Caribbean.

I have heard about a 'Caribbean Uniform Building Code', but I dont know if any of you can post a copy for dl.

Thanks, A

Print this item

  Software Torrent Section
Posted by: zbizafar - 04-13-2010, 08:00 AM - Forum: Archive - Replies (2)

Hi Admin and Moderators,

I'd like to suggest to start torrent section for Software and Books. It would be much easier to download large items.

Regards,

Print this item

  UBC 94
Posted by: kazangap - 04-13-2010, 06:31 AM - Forum: Archive - Replies (2)

# Full title: Uniform Building Code 1994(volume 1,2,3)
# Language: English
Dear Friends, I need UBC 94 urgently, If anyone can share I will be really greatfull

thanks.

Print this item

  Box Girder design analysis
Posted by: keopisey - 04-13-2010, 06:19 AM - Forum: Archive - No Replies

Dear all,

Now I'm writing my thesis concerning to the box girder with two cells. It's supported by cables which are connected to the arch at above the box. I need to know how to design it manually or by AASHTO LRFD. Anybody help me, please!

Print this item

  midas Civil 2010 - composite bridge
Posted by: rusty - 04-12-2010, 06:20 PM - Forum: Archive Problem - Replies (7)

[Image: info.png]
Hi,

I’m using midas Civil 2010.

1st problem:
I have problem with the run of the Composite plate girder design, I click Design and I get the following message: "Load combination data for composite plate girder design has not been entered." where do I have to enter the load combinations for composite girder? I created load combinations with Results>Combinations...>Concrete tab, in the table of load combinations, I made at least one of the combinations as Strength (under Active column). But I still have the same before-mentioned message.

2nd problem: I would like to analyse a steel-concrete composite bridge with double composite action, additional bottom concrete slab in the area of the intermediate supports. I created the cross section with MIDAS/SPC and exported to Midas Civil Composite-General Section Type. My question: Can I handle the time dependent behaviour of the concrete parts as in the case of typical Composite Steel-I section? I linked material to the composite parts in the SPC but I guess this required only for the calculation of the idealized (homogenized) cross section properties.
I created a beam model with only one girder, because from another accurate model (with shell finite elements) I calculated the lateral distribution function.
Here are the midas model files and the SPC composite export file:



[Image: Download.png]

Code:
*************************************** Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation: http://forum.civilea.com/thread-27464.html ***************************************

[Image: password.png]

Code:
*************************************** Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation: http://forum.civilea.com/thread-27464.html ***************************************

Best regards,
rusty

Print this item

  transmission lines and substations
Posted by: shabash_23 - 04-12-2010, 05:58 PM - Forum: Archive - Replies (4)

Can any one please suggest me any book which gives the design aspects and drawings of substation foundations and transmission tower foundations. Any free downloads suggestions appreciated.
Pls send the link to [email protected]
thanks
shahid

Print this item

  Computational contact mechanics by Peter Wriggers
Posted by: andre85 - 04-12-2010, 12:05 PM - Forum: Mechanics & Material Technology (Elasticity, Plasticity and Nonlinearity) - Replies (6)

Computational Contact Mechanics (2006)

[Image: 96958106667525921502.jpg]

[Image: info.png]
By

* Publisher: Springer
* Number Of Pages: 518
* Publication Date: 2006-06-03
* Sales Rank: 504016
* ISBN / ASIN: 3540326081
* EAN: 9783540326083
* Binding: Hardcover
* Manufacturer: Springer
* Studio: Springer


Book Description:
This is the second edition of the valuable reference source for numerical simulations of contact mechanics suitable for many fields like civil engineering, car design, aeronautics, metal forming, or biomechanics. Boundary value problems involving contact are of great importance in industrial applications in engineering such as bearings, metal forming processes, rubber seals, drilling problems, crash analysis of cars, rolling contact between car tires and the road, cooling of electronic devices... Other applications are related to biomechanical engineering design where human joints, implants or teeth are of consideration. Due to this variety, contact problems are today combined either with large elastic or inelastic deformations including time dependent responses. Thermal coupling also might have to be considered. Even stability behaviour has to be linked to contact. The topic of computational contact is described in depth providing an up-to-date treatment of different formulations, algorithms and discretisation techniques for contact problems which are established in the geometrically linear and nonlinear range. This book provides the necessary continuum mechanics background which includes the derivation of the contact constraints. Constitutive equations stemming from tribology which are valid at the contact interface are discussed in detail. Discretization schemes for small and finite deformations are discussed in depth. Solid and beam contact is considered as well as contact of unstable systems and thermomechanical contact. The algorithmic side covers a broad range of solution methods. Additionally adaptive discretisation techniques for contact analysis are presented as a modern tool for engineering design simulations. The present text book is written for graduate, Masters and PhD students, but also for engineers in industry, who have to simulate contact problems in practical application and wish to understand the theoretical and algorithmic background of contact treatment in modern finite element systems. For this second edition, illustrative simplified examples and new discretisation schemes and adaptive procedures for coupled problems are added.


[Image: Download.png]

Code:
*************************************** Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation: http://forum.civilea.com/thread-27464.html ***************************************

Edit reason: title changed to match the download link. info and cover image added. (G)

Print this item

  PCI MNL-122-07: Architectural Precast Concrete Manual
Posted by: NAUTILUS87 - 04-12-2010, 10:07 AM - Forum: Codes, Manual & Handbook - Replies (1)

Architectural Precast Concrete Manual -(PCI MNL-122-07 )

[Image: 56849191326031564338.jpg]

[Image: info.png]
"This is a precast concrete manual excellent for structural engineers abd architects both . it is published by PCI - precast concrete institute . This is the LATEST verision

the book is explang everything for an engineer or architect the precast panels to choose and how to install them this book is having one of the best illustration and detailed drawing on precast design .

it includes both structural design and architectural design . Its a must have for a professional engineer.

i am associated with using precast panels for walls , this manual was of gr8 help to me."
Review by NAUTILUS87


[Image: 12302717702734773811.jpg][Image: 69392031774727274526.jpg]

[Image: Download.png]

Code:
*************************************** Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation: http://forum.civilea.com/thread-27464.html ***************************************

Print this item

Pages (2108): « Previous 1 … 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 … 2108 Next »

Designed by CivilEA - Powered by MyBB