Pc17 retaining walls idaho transportation department. An introduction to retaining walls and excavation support systems j. Applying triangular load on platesshells in etabs or sap200. Hence in the present an attempt is made to analyze counterfort earth retaining wall with pressure relief shelf by using finite element package sap2000. There will be a detailed discussion about the meshing and defining of 2d and 3d shear walls in. A retaining wall is a structure that holds or retains soil behind it and is used for maintaining the ground surfaces at different elevations on either side of it. Analysis and design of retaining wall with and without shelf. Because soil is having slope on opposite side, away from wall and hence if a failure plan would occur, it will cause soil to slide away from wall, not towards wall. Best management practices manual pc17 retaining walls 0811 chapter 5 postconstruction concrete retaining wall. The mesa retaining wall systems shall include a drainage composite located behind the reinforced backfill volume as defined on the plans together with an associated outlet pipe system whenever the percentage of reinforced backfill material passing the no. Civilax based to server in civil engineering provides etabs and sap2000 tutorials, civil engineering spreadsheets, civil engineering ebooks and many more civil engineering downloads. Retaining wall analysis and design by sap 2000 contents. Oct 09, 2014 retaining wall ananysis and design in sap2000 by dr. Apr 19, 2014 design of retaining wall with sap2000 download.
A program for the analysis of deep foundations under lateral. Retaining wallanalysis and design by sap 2000 contents. The truth about mobile phone and wireless radiation dr devra davis duration. Stability analysis and construction guidelines by mohammad sadique hossain, b. Versalok and local representatives can provide contacts for engineers with. Utilization of sap 2000 for the analysis table1 geometry of retaining wall structural elements dimensions height of retaining wall 4. Interaction diagram dumbbell concrete shear wall unsymmetrical boundary elements investigate the capacity for the irregular tshaped concrete shear wall acting as a retaining wall for a deep underground parking garage facility in a mixed use multistory building. I design a concrete shear wall as wide column in sap2000. Good piped drainage that disposes of water away from behind the wall to limit this buildup of figure 1. Ported to drupal for the open source community by drupalizing link is external, a project of more than just themes link is external. The study shows that retaining walls with counterforts of 1. Analysis and design of retaining wall with and without. You should also be aware of the difference in assumed skin friction, depending on whether the wall stem was poured inplace against the roughened earth, or. Retaining wall design in sap2000 civil engineering community.
A structure similar to a concrete retaining wall but using. Sap model of cantilever retaining wall fixed base the model of cantilever retaining wall for actual condition in soil by sap 2000 ver. It is now time to add the shear walls to the structure. Paul guyer is a registered mechanical engineer, civil engineer, fire protection engineer and architect with over 35 years experience in the design of buildings and related infrastructure.
Figure 2 cross section of the counterfort retaining wall pillai and menon, 2009 4. Retaining wall civil engineering building engineering. A program for the analysis of deep foundations under lateral loading by william m. The following is a listing of the allan block typical details that are available. Monther retaining wall modelling in sap2000 ribbed slab design in sap2000 sap 2000 continuous concrete beam analysis and design to aci 318 sap2000 2d truss sap2000 3d truss sap2000 building modelling example sap2000 dome structure sap2000 exercise vietnamese sap2000 introductory tutorial. Worked example 2 design of concrete cantilever retaining. The model of cantilever retaining wall for fixed base by sap 2000 ver. Retaining wall general notes allan block wall systems. The surcharge from the dwelling was assumed to be 5 knm 2 averaged across the active soil wedge for the gravity case and 4 knm 2 for the earthquake case. Select materials to add them to your zip folder, then download or email the files for easy access. Most common materials used for retaining walls are. Analysis of retaining wall using sap2000 civil engineering.
The analysis engine integrated to the sap 2000, converts the object based model in to a finite element model by meshing the material. But sap designed the percentage of steel in this shear wall same as in column. Select the wall1 property and click on modifyshow section and enter a 12thick section. Click on the drawing to view or print a larger image. An earth retaining structure can be considered to have the following types. Figure 3 shows the front elevation of the proposed totally prefabricated counterfort retaining wall system and the. Pdf analysis of counterfort retaining wall with and without. Retaining wall ananysis and design in sap2000 by dr. Intro to retaining walls and excavation support systems r. To define wall elements, go to definewallslab deck section. Hence in the present an attempt is made to analyze counterfort earth retaining wall with pressure relief shelf by using finite element package sap 2000.
To download a detail, click on the desired file format. Reliability analysis of counterfort retaining walls. The resultant pressure behind the retaining wall is 398 knm 28 kipsft at a distance of 0. Sap 2000 software sap 2000 is one of the finite element software helpful in modeling and analysis for a civil engineering structural system. May 24, 2019 analysis and design of cantilever retaining wall using. Fullscale experimental testing and finite element analysis. A buildup of water behind the wall is the principal cause of retaining wall failure. The method of measurement and bid item numbers for the retaining walls described above are summarized below.
Home software training analysis of retaining wall in sap2000. Modeling using sap 2000 1open the sap 2000 sap program 2 check the units of the model in the dropdown box in lower righthand side corner of the sap 2000 window, click the dropdown box to set units to knm 3 click the file menu new model command. Retaining walls supporting lateral earth pressure over more than 6meter depth may require a wide foundation to satisfy all stability requirements. It gets its name because it uses the force of gravity to remain upright. For an additional 9 years he was a principal advisor to. Retaining walls must be installed and constructed according to the contract drawings. It is designed so that to resist the material pressure of the material that it is holding back. Geogrid spacing is determined by structural crosssection design requirements. D ata sheet concrete retaining walls concrete retaining walls provide a durable solution that is required of a structure in contact with soil and exposed to constant wetting and. Tql 9 timber retaining walls for residential applications. How can i assign and design concrete shear wall in sap 2000.
They are built against hillsides and designed to resist the lateral force of the earth behind them. Reliability analysis of counterfort retaining wall the reliability analysis of the counterfort retaining wall is carried out with the statistical distribution of the variables and the values of coefficient of variation cov as shown in table1. Retaining wall technical guidance on the geotechnical. Basics of retaining wall design 10 editionth a design guide for earth retaining structures contents at a glance.
But if a retaining wall is retaining backfill having sloppy face for insulation purposes lets say, then it should not experience the pressure due to full height in my opinion. Design and analysis of water tank with sap 2000 tutorial. The tshaped formation comprises the basement retaining. For retaining walls taller than 3 to 4 feet, building codes generally require a building permit and structural wall design prepared by a qualified engineer. Figure 3 shows the front elevation of the proposed totally prefabricated counterfort retaining wall system and the extended counterforts. Like other retaining walls, gravity walls are used to separate or terrace different levels of land. Browse anchor walls technical materials, including freestanding and retaining wall construction details, freestanding and retaining wall product specifications, cad drawings, installation guides and more.
Retaining wall is a structure that retain holds back any material usually earth and prevents it from sliding or eroding away. This work required the modeling, analysis and design of 120 retaining walls varying in height and effective peak acceleration by developing a program in excel with macros and modeling in sap 2000 where volumes were determined regressions of simple concrete and cyclopean as well as kilograms of reinforcing steel, which allowed the formation of. The retaining wall plan view is for wall identification only. Sap model of cantilever retaining wall embedded in soil 4. Retaining wall downslope and supporting dwelling foundations surcharge. Oct 02, 2016 you can define it either as an equivalent column and beam, which is tedious or you can simply go to definesection properties area section from here select shell as section to add then click add new section then give its property as membrane a. You should also be aware of the difference in assumed skin friction, depending on whether the wall stem was poured inplace against the roughened earth, or poured against smooth concrete forms. Sap2000 training collection civil engineering community. Retaining wall definition and types of retaining walls.
You can define it either as an equivalent column and beam, which is tedious or you can simply go to definesection properties area section from here select shell as section to add then click add new section then give its property as membrane a. Timber queensland technical data sheet 9 timber retaining walls revised march 2006 page 3 and possibly wall failure. Introduction types of retaining wall modes of failure what is a retaining wall. Modeling using sap2000 1open the sap2000 sap program 2 check the units of the model in the dropdown box in lower righthand side corner of the sap2000 window, click the dropdown box to set units to knm 3 click the file menu new model command. Download spreadsheet excel perencanaan dinding penahan pada.
Concrete retaining wall product technical materials. Hence they provide a lateral support to vertical slopes of soil that would otherwise collapse into a more natural shape. Analysis and design of cantilever retaining wall using. Each file also is available for download in autocad. The counterforts are spaced at intervals and act as tension members to support the stem. Civil engineering ebooks and many more civil engineering downloads.
Analysis of retaining wall in sap2000 civil engineering. Analysis and design of cantilever retaining wall using prokon. Surface structures, including sap2000 linkedin slideshare. Retaining walls are structure used to retain soil, rock or other materials in a vertical condition. An engineered concrete wall designed to stabilize a slope and retain the rock or soil behind it. A thesis in civil engineering submitted to the graduate faculty of texas tech university in partial fulfillment of the requirements for the degree of master of science in civil engineering appnbved accepted december, 2000. In urban areas excavation width can be of concern when heavy traffic and nearby existing structures. Analysis gravity retaining wall civil engineering community.