Earthquake Lateral Forces According to UBC97 Spreadsheet
Characteristic Load Method (CLM) Spreadsheet
Characteristic Load Method (CLM) Spreadsheet
Introduction
The first version of the Characteristic Load Method (CLM) spreadsheet (Brettmann and Duncan, 1996) was based on the CLM method (Duncan, et al., 1994) for analysis of single piles, and the Group Amplification Method (Ooi and Duncan, 1994) for analysis of pile groups.
That first version of the CLM spreadsheet was found to produce quite accurate results for single piles, but was found in many cases to overestimate deflections and bending moments for pile groups.
The revised spreadsheet described in this report uses the same method of analysis as the original
for single piles, but uses an improved method of analysis for pile groups.
Background
The characteristic load method (CLM) of analysis of laterally loaded piles (Duncan et al., 1994) was developed by performing nonlinear p-y analyses for a wide range of free-head and fixed-head piles and drilled shafts in clay and sand. The results of the analyses were used to develop nonlinear relationships between dimensionless measures of load and deflection.
These relationships were found to be capable of representing the nonlinear behavior of single piles and drilled shafts quite accurately, producing essentially the same values of deflection and maximum moment as p-y analysis computer programs like COM624 and LpilePlus3.0.
The principal limitation of the CLM method is that it is applicable only to uniform soil conditions.
The Group Amplification Method was developed by Ooi and Duncan (1994), to extend use of the CLM method to groups of piles and drilled shafts. Values of group amplification factors for deflection and moment were computed using the method developed by Focht and Koch(1973).
The original version of the CLM spreadsheet (Brettmann and Duncan, 1996) used the CLM method to calculate deflections and bending moments in single piles, and the Group Amplification Method to calculate deflections and moments for piles in pile groups. It was found that the original version of the spreadsheet resulted in accurate values of moment and deflection for single piles, but often over-estimated deflections and bending moments for the
piles in pile groups, as judged by comparison with p-y analysis programs and the results of field
load tests.
Soil Nailing Power Point Presentation
Soil Nailing Power Point Presentation
“Soil nailing is a soil reinforcing technique that works by either driving/jacking the steel reinforcements into the ground or inserting reinforcements into a drilled hole bonded with non-shrink cementations grout in the excavated soil face”
Content:
- Introduction
- Advantages
- Disadvantages
- Typical application
- Application media
- Design concept
- Design process
- Design method
- Design manual
- Recommended design procedure
- Failure modes
- Case study
- Conclusions
Details of Reinforcement and Beams Framing Plan Autocad Drawing
Staircase Details Autocad DWG File
Reinforced Concrete Footing Details Autocad Drawing
Reinforced Concrete Footing Details Autocad Drawing
For more Autocad Free Drawings please visit Cadtemplates Website.
Introduction to soil modelling and numerical methods
Landslide and its accurate detection Presentation
Landslide and its accurate detection Presentation
LANDSLIDE: CONTENT OUTLINE
- HOW RAINFALL TRIGGERS LANDSLIDE ?
- WHY CAN’T GEOTECH. ENGINEERS PREDETECT LANDSLIDE ?
- WHY SLOPE WHICH HAS BEEN STANDING FOR MANY YEARS SUDDENLY FAIL ?
- WHY IS IT SO DIFFICULT TO DETECT POTENTIAL LANDSLIDE ? AND WHAT MAKE IT SO COMPLEX ?
- WHY LANDSLIDE IS ALWAYS ASSOCIATED WITH ELEVATION OF GROUNDWATER TABLE (GWT) ?
- DOES GWT HAS INFLUENCE ON RAINFALL-INDUCED LANDSLIDE IN HIGH GROUND ?
- WHAT IS THE ADVANTAGE OF INFILTRATION TYPE SLOPE STABILITY METHOD ?
- WHAT IS THE ACTUAL SOIL SHEAR STRENGTH BEHAVIOUR ?
- HOW TO CONDUCT EFFECTIVE SLOPE MONITORING TO DETECT RAINFALL- INDUCED LANDSLIDE?
- WHICH SLOPE STABILITY METHOD IS THE MOST RELIABLE ?
- WHAT IS REQUIRED FOR A RELIABLE SLOPE STAB. SOFTWARE?
- IS THERE ANY SOFTWARE FOR ACCURATE DETECTION OF LANDSLIDE ?
Breakwater Design Power Point Presentation
Breakwater Design Power Point Presentation
A Breakwater is a structure that protects the area in its lee from wave attack. Breakwaters can be connected to the shoreline (attached breakwater) or completely isolated from the shore (detached breakwater). (rubble mound structure or composite).
You can find more detail in this Power point Presentation.
