Detailing Concepts of capping beam & Lining walls

-

 Detailing Concepts of capping beam & Lining walls


What is capping beam?

1 Capping beam is constructed over pile walls i.e. secant, contiguous and sheet pile. 
2 To distribute the loads from vertical elements to pile wall. 
3 Can resist lateral loads along with piled walls or can just be a cap of piled walls. 
4 Can act as boundary of site. 

Capping beam.












Detailers should know the following things before they start to detail a capping beam.

1 Construction sequence (or) type construction i.e. Top down / Bottom Up. 

2 Connectivity between capping beam and adjacent elements like lining walls. 

3 Details at pile cut-off level if it is sheet pile.

4The bottom cover should be equal or greater than pile cut off . 

5The main rebar (i.e. top and bottom) can be detailed for stock length and lapped. Unless the capping beam is designed specially for any site conditions. If there are any planted columns/walls that need to be considered. 

6 Sometimes the side face bars acts as main bars then the lapping subject to temporary or permanent props. Ground beams will act as permanent props. 

7 Based on the construction sequence the connectivity reinforcement need to be detailed in capping beam. Connectivity for adjacent slab and lining wall can be 

kiwikastrip, eazistrip, contistrip, etc., 

coupler connections. 

loose bars ( fly out bars) - Not advisable.
















Lining walls 

Lining wall mostly acts like partition wall (i.e. nonstructural) to give flat surface against any pile walls. Mostly reinforced with nominal diameters or prefabricate mesh. 
Reinforced like retaining wall when it is considered as structural wall. 
Generally cast after capping beam and basement slabs.









Comments

Post a Comment

Popular posts from this blog

Placement Plane and Orientation of shape driven rebar

-
Image
 This is meant as a brief overview of the options that exist during shape driven rebar placement. A shape driven rebar gets its geometry from a rebar shape loaded into the Revit project. This kind of rebar has a bar plane that contains all the bar geometry, segment planes perpendicular to the bar plane, which contain each segment, as well as an out of plane extent, which represents the end of the rebar set. To place such a bar in any 2D view, we need to position and orient it within the element and relative to the view plane. Here’s a simple example of placing the M_17 shape: • In a section view you can place the single bar in the current workplane, at the far end of the element (detected automatically) or at the near face of the element o Placing a single bar in a section like this, at the near cover reference, will show a warning that the bar is not visible • When placing a set in this section, the result is the same, regardless of the placement plane setting Placement orie...
Read more

Best tips for Revit beginners

-
Image
  10 Best practices for Revit beginners Autodesk Revit is a great BIM tool for architects, engineers, designers and contractors. Yet, a tool is as good as its user, and the full potential of modeling in Revit can only be understood through a deep understanding of its various functions. Here are some important tips to help you make the most of Revit and speed up the modeling process. 1. Move from 2D, think 3D One of the biggest challenges with Revit is to move from 2D thinking to 3D thinking. Both professionals and students that came in my Revit classes during the past years were comfortable with how they did things and didn’t understand why change is needed. I must admit that when I started with Revit, (10 years ago) I did exactly the same. I was still thinking in a 2D Construction Document way. I was looking for a way to do the things I was used to, rather than adopting a new way of working. But eventually, I realized the full potential of the BIM process and technology and...
Read more

Standard Shape Codes for UK detailing

-
Image
 Standard Shape Codes General Notes  The values for minimum radius and end dimensions, r and A respectively, as specified in Table B.1, shall apply to all shape codes.  The dimensions in parentheses are the free dimensions. If a shape given in this table is required but a different dimension is to allow for the possible deviations, the shape shall be drawn out and given the shape code 99 and the free dimension shall be indicated in parentheses. The length of straight between two bends shall be at least 4d, (see Figure 6 BS 86666). BS 86666, Figures 4, 5 and 6 should be used in the interpretation of bending dimensions. Notes  1 The length equations for shapes 14, 15, 25, 26, 27, 28, 29, 34, 35, 36 and 46 are approximate and where the bend angle is greater than 45º, the length should be calculated more accurately allowing for the difference between the specified overall dimensions and the true length measured along the central axis of the bar. When the bending angles a...
Read more