Nptel provides elearning through online web and video courses various streams. Specifically, wide flange column base plates may be subjected to axial loads compression or tension, with or without majoraxis column bending, plus majoraxis shear. The procedure covers the design of bases under axial compression only. Design of industrial steel building by limit state method. The design and shop drawing computations of the proprietary wall systems. Typical cross section of rigid pavement elastic plate viscous foundation contact pressure figure 19.
In the end, the programs are validated with the results of manual calculation given in. No commercial use of these notes is permitted and copies of these will not be offered for. In a butt joint the connected ends of the plates lie in the same plane. Design of column base plates anchor bolt slideshare. Damodar maity, department of civil engineering,iit guwahati. Jan 28, 2014 design for tensile uplift forces base plate bending strength other possible bend lines. Design recommendations are provided for both allowable stress design and load factor design. Data structures and algorithms, nptel course material, department. Reset state white rod will appear in the indicator window. Introduction to pavement design nptel may 3, 2007 portland cement concrete 150. The base plate c is fixed on to a structure by four bolts of each 12 mm diameter. Design of gusset plate lecture 27 lug angles lecture 28 splices in tension members. Also the design of the foundation which consists of the base plate has been done according to is 800.
Structural plate design guide 2 typical design steps steel and aluminum structural plate design guide table of contents this design guide is provided by contech engineered solutions to assist designers with most applications and design aspects of multi plate, aluminum structural plate alsp, aluminum box culverts albc, superspan. Gorbels design factor for deflection is based upon the crane capacity plus 15% for the weight of the hoist and trolley i. Base plate and anchor rod design construccion en acero. Nov 28, 2014 design of base plate with small eccentricities if e plate p ab f 2 1 i bn 16. Design a hand operated overhead crane, which is provided in a shed, whose. What is the main objective of providing a base plate. To develop programs for the design of water tank of flexible base and rigid base and the underground tank to avoid the tedious calculations. Engineered solutions structural plate design guide 7. Design the design procedure for column bases is taken from bs en 199318 and follows an effective area approach.
Determine the path of the forces through the connection. Rama rao 6discussed about the frequent failure of bearing. Base plate and anchor rod design example using asdip steel. Relevant calculations have been shown and the figures have been drawn. In addition, the factored load shear on the base metal shall not produce a stress in excess of fbm, where fbm is the nominal shear strength of the connected material. It is important to distinguish the design factor from the safety factor, which is a much larger number typically 4 8 times greater than the design factor. Stability plays an important role in the design of compression member because in columns buckling is involved. Stiffening of shaft casing has the same effects of base plate stiffing. Practical design and detailing of steel column base plates. The design anchorage length l bd is taken from the basic required anchorage length l b,rqd multiplied by up to five coefficients. Pdf design and analysis of vertical industrial pump casing. If you are using tekla structural designer or tekla portal frame designer moment and base plate connections integrate seamlessly improving design efficiency.
Design of isolated square and rectangular footings aci. The base plate is 10 mm thick and it is connected to the bracket by welding. Butt joints may also be classified into single cover but joint, double cover butt joints. Sections axis of buckling x x y y hot rolled structural hollow sections. The load from the rod r is transferred to the base plate c through a bracket b that is 22mm wide and has a circular hole for the pin. In case of double cover butt joint, cover plates are provided on either side of the main plate. Design of column base plates typical column bases, as shown below, consist of a single plate fillet welded to the end of the column and attached to the foundation with four holding down bolts.
The allowable bending stress in the slab base is 185 nmm 2 mpa. Column base plate design online calculation report checked by date cn 16. The base moment of guyed steel chimney is less than the selfsupporting steel chimney and hence guyed steel chimney is safe at that site. The gussets gusset plates and gusset angles are not provided with the column with slab bases. Two plates of 16 mm thick are to be joined using m20 bolts of grade 4. For such columns, the simple column base plate connection detail shown in figure 1. Comparative design and analysis of self supporting and. It is important to distinguish the design factor from the safety factor, which is a much larger number typically 4 8 times greater than the design. Design the anchor bolt, breach opening, base plate and foundation of a self. Additionally, a major thrust is also planned on the design, implementation, and maintenance. Base plates for axial compression and moment 41 42.
The bolts are cast into the concrete base in location tubes or cones and are fitted with anchor plates. The column base is subject to the factored force f sd 500 kn. Unless the weld is a complete penetration, weld, the bottom end of the column needs to be cut square. Pdf introduction to pavement design wudineh yaregal.
For e70xx and e80xx electrodes, the design stresses are fw, or 31. Trip white rod shifted and unable to be seen directly. Steel chimneys are structures with tall, slender and tapering with circular cross sections. It is assumed uniformly distributed under the slab. Design and construction of shear walls griet page 25for a. Using the stand alone product you can design moment or simple connections, column base and hollow section connections. Engineered solutions structural plate design guide 7 edition. The allowable bearing pressure on concrete is 4 nmm 2.
Guide to design criteria for bolted and riveted joints second. Yield line design demands familiarity with failure patterns, i. Adding stiffeners and other plates to a base plate assembly is labor intensive compared to using a thicker base plate that could eliminate the need for these additional stiffener plates. This article presents different types of steel chimneys are their designs.
Different behaviour should be considered when strength, stiffness and rotational capacity of the base plate loaded by bending moment have to be predicted, see 1. Determine the effective area, a eff, in terms of the projection width from the steel profile. Pdf design and analysis of vertical industrial pump. I n the precast concrete industry, precast components are typically connected by use of an embedded plate, a majority of which are anchored with weldedheaded studs. The work on this manuscript was carried out at fritz engineering laboratory, lehigh university, bethlehem, pa. So design guideline of column base in indian code is highly inadequate. Design examples for use in first semester structural steel design. The sub base course is the layer of material beneath the base course and the primary functions are to provide structural support, improve drainage, and reduce the intrusion of fines from the subgrade in the pavement structure if the base course is open graded, then the sub base course with more fines can serve as a filler between subgrade and.
Design of steel column base connections for large eccentricities. The bolts are cast into the concrete base in location tubes or cones and are fitted with anchor plates to prevent pullout. This has now been done, and the workbook is now version 3. In both cases, major consideration is given to the fundamental behavior of the joint and its ultimate capacity. Design of isolated square and rectangular footings aci 31814. How to calculate anchorage and lap lengths to eurocode 2.
Eccentrically loaded base plate lecture 62 gusset base lecture 63 design of gusset base. Course handout s6 ce rajagiri school of engineering. The final solution that was considered for improvement of vibration behavior of the system was simultaneously stiffening of casing near the impeller and base plate. The abutting ends of the plates are covered by one or two cover plates or strap plates. Reset button reset button reset button reset button switch plate switch plate. Structures, encyclopedia of life support systems, 201. The column end is faced for bearing over the whole area. Roof slab the design of walls by approximate method is broadly classified into two categories 1. The concrete foundation blosk dimensions are 1600 x 1600 x mm. Yield line design is a robust and proven design technique.
Indian institute of technology jodhpur iit jodhpur. Design of rectangular tanks the components of a rectangular tank are 1. Find overall dimension of base plate for square base plate v for rectangular base plate assume length l of base plate and find another dimension b al b. Why the base plate must be analyzed in two directions in elastic design. Design of water tank national institute of technology. The software used for analysis and design is staad pro. By thin, it is meant that the plate s transverse dimension, or thickness, is small compared to the length and width dimensions. The column base stiffness is in particular influenced by behaviour of the tension part of the base plate, see 2. The sufficient fastenings are used to retain the parts securely in plate and to resist all moments and forces, other. Safety terminal cover design for high safety level terminal cover, is easy to install and complies with iec degree of protection of ip 20. Design of column base plates islamic university of gaza.
It is a versatile tool that challenges designers to use judgement. Once grasped yield line design is an exceedingly powerful design tool. What are the steps involved in the design of the base plate. Lecture series on design of steel structures by dr.
They are ideally suited for process work where a low thermal capacity required and short heatup period. Introduction our project deals with the design of a steel structure. Design of steel structures nptel online videos, courses iit. Santha kumar indian institute of technology madras 8. Baseplt9 is a spreadsheet program written in msexcel for the purpose of analysis of steel column base plates. Nptel civil engineering design of steel structures i. Existing design methods for base plates the prediction of the behaviour of base plate joint is complex due to the. The anchor, base material, base plate, and profile typesize can be found from the. Component method for base plates the concept adopted by en 199318 is to transform the flexible base plate into an effective rigid plate and to allow the development of stresses in the concrete foundation that will reach ultimately the resistance to compression in a. In single cover butt joint, cover plate is provided on one side of main plate. Tekla connection designer is the new name for fastrak connections. Fixed column base calculate the design moment resistance m rd of the fixed column base.
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