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. Retaining wall analysis and design by sap 2000 contents. 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. Geogrid spacing is determined by structural crosssection design requirements.
Retaining walls must be installed and constructed according to the contract drawings. 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. Basics of retaining wall design 10 editionth a design guide for earth retaining structures contents at a glance. Analysis gravity retaining wall civil engineering community. For an additional 9 years he was a principal advisor to.
Like other retaining walls, gravity walls are used to separate or terrace different levels of land. Stability analysis and construction guidelines by mohammad sadique hossain, b. Browse anchor walls technical materials, including freestanding and retaining wall construction details, freestanding and retaining wall product specifications, cad drawings, installation guides and more. The method of measurement and bid item numbers for the retaining walls described above are summarized below. A program for the analysis of deep foundations under lateral. Utilization of sap 2000 for the analysis table1 geometry of retaining wall structural elements dimensions height of retaining wall 4. It is designed so that to resist the material pressure of the material that it is holding back. 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. But sap designed the percentage of steel in this shear wall same as in column. 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. To download a detail, click on the desired file format. Reliability analysis of counterfort retaining walls.
Drainage a vertical layer of free draining material must be placed immediately behind the wall to dissipate the buildup of groundwater which otherwise would add to the load carried by the structure. The tshaped formation comprises the basement retaining. Introduction types of retaining wall modes of failure what is a retaining wall. In urban areas excavation width can be of concern when heavy traffic and nearby existing structures.
The counterforts are spaced at intervals and act as tension members to support the stem. Timber queensland technical data sheet 9 timber retaining walls revised march 2006 page 3 and possibly wall failure. Sap 2000 software sap 2000 is one of the finite element software helpful in modeling and analysis for a civil engineering structural system. Retaining walls are structure used to retain soil, rock or other materials in a vertical condition. Figure 2 cross section of the counterfort retaining wall pillai and menon, 2009 4. 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. The retaining wall plan view is for wall identification only. It gets its name because it uses the force of gravity to remain upright. Retaining wall civil engineering building engineering. Surface structures, including sap2000 linkedin slideshare. 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 wall technical guidance on the geotechnical. Figure 3 shows the front elevation of the proposed totally prefabricated counterfort retaining wall system and the extended counterforts.
Retaining wall downslope and supporting dwelling foundations surcharge. Design and analysis of water tank with sap 2000 tutorial. Analysis of retaining wall using sap2000 civil engineering. Retaining wall ananysis and design in sap2000 by dr. A structure similar to a concrete retaining wall but using. Retaining wall definition and types of retaining walls. Hence in the present an attempt is made to analyze counterfort earth retaining wall with pressure relief shelf by using finite element package sap2000. 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. How can i assign and design concrete shear wall in sap 2000.
Tql 9 timber retaining walls for residential applications. Analysis and design of retaining wall with and without shelf. Oct 09, 2014 retaining wall ananysis and design in sap2000 by dr. I design a concrete shear wall as wide column in sap2000. Download spreadsheet excel perencanaan dinding penahan pada. 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. The model of cantilever retaining wall for fixed base by sap 2000 ver. Hence they provide a lateral support to vertical slopes of soil that would otherwise collapse into a more natural shape. 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.
Intro to retaining walls and excavation support systems r. 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. Click on the drawing to view or print a larger image. Pdf comparisons of two approaches for the design of. The analysis engine integrated to the sap 2000, converts the object based model in to a finite element model by meshing the material. Apr 19, 2014 design of retaining wall with sap2000 download. Retaining walls supporting lateral earth pressure over more than 6meter depth may require a wide foundation to satisfy all stability requirements. Analysis and design of cantilever retaining wall using. Fullscale experimental testing and finite element analysis. Sap model of cantilever retaining wall embedded in soil 4.
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. A program for the analysis of deep foundations under lateral loading by william m. A buildup of water behind the wall is the principal cause of retaining wall failure. 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. They are built against hillsides and designed to resist the lateral force of the earth behind them. To define wall elements, go to definewallslab deck section. 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 following is a listing of the allan block typical details that are available. The study shows that retaining walls with counterforts of 1. Analysis and design of retaining wall with and without. Retaining wall is a structure that retain holds back any material usually earth and prevents it from sliding or eroding away. 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. The truth about mobile phone and wireless radiation dr devra davis duration. Best management practices manual pc17 retaining walls 0811 chapter 5 postconstruction concrete retaining wall.
Select materials to add them to your zip folder, then download or email the files for easy access. Civil engineering ebooks and many more civil engineering downloads. Pdf analysis of counterfort retaining wall with and without. Retaining wall general notes allan block wall systems. 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. 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. It is now time to add the shear walls to the structure. 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. Worked example 2 design of concrete cantilever retaining. Analysis and design of cantilever retaining wall using prokon. Concrete retaining wall product technical materials. 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 wallanalysis and design by sap 2000 contents.
May 24, 2019 analysis and design of cantilever retaining wall using. Sap model of cantilever retaining wall fixed base the model of cantilever retaining wall for actual condition in soil by sap 2000 ver. The resultant pressure behind the retaining wall is 398 knm 28 kipsft at a distance of 0. Each file also is available for download in autocad. Pc17 retaining walls idaho transportation department. Ported to drupal for the open source community by drupalizing link is external, a project of more than just themes link is external. An introduction to retaining walls and excavation support systems j. Select the wall1 property and click on modifyshow section and enter a 12thick section. Good piped drainage that disposes of water away from behind the wall to limit this buildup of figure 1. Applying triangular load on platesshells in etabs or sap200. An engineered concrete wall designed to stabilize a slope and retain the rock or soil behind it. Retaining wall design in sap2000 civil engineering community. Figure 3 shows the front elevation of the proposed totally prefabricated counterfort retaining wall system and the. 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.
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