Civil Engineering Association

Welcome, Guest

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

Search Forums

Forum Statistics

» Members: 131,871
» Latest member: ahmaed94
» Forum threads: 31,869
» Forum posts: 105,554

Full Statistics

Latest Threads

IEEE 1127-2023-Guide for ...
Forum: Books and Codes Request
Last Post: civilfafa
11-01-2025, 08:00 AM
» Replies: 0
» Views: 62

SAP2000 v26
Forum: SAP2000
Last Post: mowafi3m
10-16-2025, 02:20 PM
» Replies: 4
» Views: 4,011

CSI ETAB 22
Forum: ETABS
Last Post: mowafi3m
10-15-2025, 11:20 AM
» Replies: 14
» Views: 11,751

The 2024 National Design ...
Forum: Books and Codes Request
Last Post: juanpa6
10-02-2025, 10:35 PM
» Replies: 0
» Views: 305

Forum Strength
Forum: Suggestion & Complains
Last Post: Dell_Brett
09-28-2025, 02:58 PM
» Replies: 1
» Views: 1,248

ACI/PCI 319: Structural P...
Forum: ACI
Last Post: poolmand
09-16-2025, 11:03 AM
» Replies: 2
» Views: 6,264

LISP to draw steel shapes
Forum: Autocad Structural Details
Last Post: Dell_Brett
08-31-2025, 12:44 PM
» Replies: 6
» Views: 24,155

CS TR?: Assessment, Desig...
Forum: Concrete
Last Post: concreteok
08-27-2025, 03:39 AM
» Replies: 6
» Views: 11,768

All Type Beam to Column C...
Forum: Own-Copyrighted Material
Last Post: juice
08-25-2025, 01:54 AM
» Replies: 12
» Views: 44,521

TIA 222-H
Forum: Codes, Manual & Handbook
Last Post: civilfafa
08-23-2025, 06:47 AM
» Replies: 2
» Views: 8,142

Architectural Utilities 1 - Plumbing and Sanitary

Posted by: cordoba123 - 06-03-2012, 08:19 PM - Forum: Architecture Books - Replies (1)

Architectural Utilities 1 - Plumbing and Sanitary

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

***************************************

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

***************************************

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

***************************************

This post has been made by CivilEA Post-Generator ver 2.1.6

Alternate Path method in progressive collapse analysis

Posted by: hich - 06-03-2012, 05:51 PM - Forum: Civil Engineering MSc and PhD thesis - Replies (2)

Alternate Path method in progressive collapse analysis: Variation of dynamic and non-linear load increase factors

As a result of the increasing number of terrorist attacks registered against American facilities in the United States or abroad, United States government agencies continue to improve the design of their buildings to make them safer and less vulnerable to terrorist attacks. One of the factors typically considered in designing safer buildings and structures, is their ability to prevent total collapse after the loss of load-carrying components (Progressive Collapse) resulting from a terrorist attack. The consequences of not having a building capable of reducing the potential for progressive collapse could be catastrophic, as it was the case of the Oklahoma City bombing in 1995 where 42% of the Alfred P. Murrah Federal Building was destroyed by progressive collapse and only 4% by the explosion or blast. This attack claimed 168 lives and left over 800 injured. Over the last 10 years, two United States government agencies have developed guidelines for the design of their structures to resist progressive collapse: (1) The General Services Administration, "Progressive Collapse Analysis and Design Guidelines," (GSA Guidelines) and (2) The Department of Defense Unified Facilities Criteria 4-023-03 "Design of Buildings to Resist Progressive Collapse" (UFC 4-023-03). Within both approaches, the main direct design procedure is the Alternate Path (AP) method, in which a structure is analyzed for collapse potential after the removal of a column or section of wall. Different analytical procedures may be used, including Linear Static (LS), Nonlinear Static (NLS), and Nonlinear Dynamic (NLD). Typically, NLD procedures give better and more accurate results, but are more complicated and expensive. As a result, designers often choose static procedures, which tend to be simpler, requiring less labor. As progressive collapse is a dynamic and nonlinear event, the load cases for the static procedures require the use of factors to account for inertial and nonlinear effects, similar to the approach used in ASCE Standard 41 "Seismic Rehabilitation of Existing Buildings" (ASCE 41). A number of inconsistencies have been indentified in the way the existing guidelines applied dynamic and non-linear load factors to their static approaches. As part of an existing effort to update the existing guidelines, this study used SAP2000 to perform several AP analyses on a variety of Reinforced Concrete and Steel Moment Frame buildings to investigate the magnitude and variation of the dynamic and non-linear load increase factors. The study concluded that the factors in the existing guidelines tend to yield overly conservative results, which often translate into expensive design and retrofits. This study indentified new load increase factors and proposes a new approach to utilize these factors when performing AP analyses for Progressive Collapse.

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

***************************************

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

***************************************

This post has been made by CivilEA Post-Generator ver 2.1.6

soil-structure interaction- from rules of thumb to reality (ripped from Google)

Posted by: david-smith - 06-03-2012, 05:18 PM - Forum: Foundation & Geotechnics in general - Replies (3)

soil-structure interaction-from rules of thumb to reality

the 18th NZGS geotechnical symposium on soil-structure interaction.

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

***************************************

The file ripped from Google,many missing pages included.

This post has been made by CivilEA Post-Generator ver 2.1.6

Architectural Character and the History of Architecture

Posted by: cordoba123 - 06-03-2012, 04:55 PM - Forum: Architecture Books - Replies (1)

Architectural Character and the History of Architecture

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

***************************************

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

***************************************

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

***************************************

This post has been made by CivilEA Post-Generator ver 2.1.6

evaluation finding for skererup base isolation elastomeric bearing

Posted by: david-smith - 06-03-2012, 04:49 PM - Forum: Structural Dynamics and Earthquake Engineering - Replies (1)

evaluation finding for skellerup base isolation elastomeric bearing

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

***************************************

the file is OCR.
ripped from Google.
Missing pages:12,15,16,19,20,21,22

This post has been made by CivilEA Post-Generator ver 2.1.6

Architectural Practice and Construction Management

Posted by: cordoba123 - 06-03-2012, 02:54 PM - Forum: Project Management - Replies (1)

Architectural Practice and Construction Management

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

***************************************

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

***************************************

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

***************************************

This post has been made by CivilEA Post-Generator ver 2.1.6

Architectural Building Materials

Posted by: cordoba123 - 06-03-2012, 01:21 PM - Forum: Architecture Books - Replies (1)

Architectural Building Materials

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

***************************************

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

***************************************

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

***************************************

This post has been made by CivilEA Post-Generator ver 2.1.6

Architectural Theories of Design

Posted by: cordoba123 - 06-03-2012, 12:17 PM - Forum: Architecture Books - Replies (1)

Architectural Theories of Design

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

***************************************

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

***************************************

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

***************************************

This post has been made by CivilEA Post-Generator ver 2.1.6

ICOLD Bulletin 117

Posted by: ir_71 - 06-03-2012, 07:07 AM - Forum: Water & Hydraulic Engineering - No Replies

ICOLD Bulletin 117

The Gravity Dam : a dam for the future 35 000 dams higher than 15 m have been built since 1930, including :
– 30 000 fill dams (20 000 hand made by low cost labour) : over 100 failed.
– 3 000 concrete gravity dams : none failed.
Utilizing such a safe solution for less than 10 % of past dams was mainly due to economic comparisons; moreover the extreme standardization of gravity dam design did not allow it to be optimized for very different local conditions.
A more important future for gravity dams will be due to :
– Actual labour cost increases in developing countries, eliminating hand made fill dams.
– Increased design flood criteria favouring concrete structures.
– Key possibilities offered by RCC.
But full utilization for relevant opportunities needs a deep review of traditional habits and a much wider choice of cross sections, materials, waterproofing, specifications, possibly composite solutions, … optimized for all conditions of each dam site. Designs of 21st century gravity dams could vary as much as fill dam designs during the 20th century. Lower quality foundations could often be accepted through suitable designs.
This Bulletin is based upon dam history and accidents, theoretical analysis and review of practical construction methods. It has been prepared by a group of French engineers, M. Lino being the coordinator and a key author, with extensive cooperation by P. Londe, ICOLD Honorary President, and J. Launay, and advice from A. Goubet.

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

***************************************

This post has been made by CivilEA Post-Generator ver 2.1.6

Refund Policy

Posted by: Administrator - 06-03-2012, 04:21 AM - Forum: Rules & Privacy of CivilEA - No Replies

Since CivilEA.com is offering non-tangible irrevocable goods we do not issue refunds once the order is accomplished and the subscription is sent. As a customer you are responsible for understanding this upon purchasing subscription at our site.

However, we realize that exceptional circumstance can take place with regard to the character of the product we supply.

Our Technical Support Team is always eager to assist you and deliver highly professional support in a timely manner. Thank you for purchasing our products.

Private Inquiries:
- Private Forum

Please give it 12-24 hours for our Support Team to get back to you on the problem.

Pages (2104): « Previous 1 … 886 887 888 889 890 891 892 893 894 895 896 … 2104 Next »