De Cornel Construction Service

18/02/2025

Look at our swimming pool

04/02/2025

Construction of Swimming pool with jet in progress
Location Port Harcourt

28/10/2024

Swimming pool construction

27/10/2024

FAILURE IN COLUMNS

The modes of failure for a column is based on ratio of effective length (further depends on support conditions) of column to the radius of gyration about the axis under consideration i.e. slenderness ratio of the column.

Assuming the columns are concentrically loaded, based on slenderness ratio, modes of failure of column are classifies as:



1. FAILURE DUE TO PURE COMPRESSION

When a column is subjected to high compressive load, the concrete and steel experiences high stresses, as a result the column fails without undergoing any lateral deformation. The concrete is crushed and steel yields, hence, column fails due to material failure.

It is a common failure case for pedestals, as pedestals have slenderness ratio value less than 3, due to which they do not undergo any lateral deformation (bending) due to concentric loads.



Remedy:

To keep the generated stresses under permissible limits, the concrete column must be designed with sufficient cross-section area.

2. FAILURE DUE TO COMBINED COMPRESSION AND BENDING

All long columns and most short columns are susceptible to this type of failure. Long columns undergoes lateral deflections even under influence of axial loads only, due to both material and member abnormality.

Short columns are mostly subjected to lateral loads, moments and axial loads. Due to action of moments and lateral loads, short columns undergo bending and lateral deflection. Due to lateral deflection and bending, the steel acquires its yield stress and eventually column fails.



Remedies:

Columns must be constructed keeping centre line straight; any abnormality might cause excessive lateral deflection, under influence of lateral or axial loads.As long as not specifically required, slenderness ratio must be kept small. This will reduce the unsupported length of column.

3. FAILURE DUE TO INELASTING INABILITY

Long columns with slenderness ratio greater than 12 have larger unsupported length, due to which their load carry capacity is majorly affected.

These columns are highly susceptible to buckling and become unstable even under influence of much smaller loads than their carrying capacity. This failure is highly unacceptable as per designer’s point of view.



Remedy:

Columns with slenderness ratio greater than 30 are totally neglected as per IS 456:2000 guidelines. Moreover, columns with slenderness ratio greater than 12 must be designed with respect to Rankine’s and Euler’s theories, according to requirement to calculate critical load.

05/09/2024

06/08/2024

The change in life starts from your thoughts,
If you change your thoughts,
Your life will be changed,
So, change your thinking!

Blessed morning to you

04/08/2024

Before starting building construction, there are several crucial factors to consider:

1. **Planning and Design**:
- **Purpose and Requirements**: Clearly define the purpose of the building and its requirements.
- **Architectural Design**: Engage an architect to create a design that meets your needs and complies with local regulations.
- **Feasibility Study**: Conduct a feasibility study to assess the project's viability, including cost estimates and potential challenges.

2. **Budget and Financing**:
- **Budget Estimation**: Create a detailed budget covering all aspects of the construction, including materials, labor, permits, and contingencies.
- **Financing Options**: Secure financing through savings, loans, or investors.

3. **Legal and Regulatory Compliance**:
- **Permits and Approvals**: Obtain necessary building permits and approvals from local authorities.
- **Zoning Laws**: Ensure the project complies with local zoning laws and regulations.
- **Environmental Regulations**: Adhere to environmental regulations, including assessments and mitigation measures.

4. **Site Selection and Preparation**:
- **Location**: Choose a suitable location considering accessibility, utilities, and future growth.
- **Site Survey**: Conduct a site survey to assess soil conditions, topography, and other factors.
- **Site Clearance**: Clear the site of any obstacles or debris.

5. **Materials and Labor**:
- **Material Selection**: Choose high-quality materials that meet your design specifications and budget.
- **Contractors and Labor**: Hire reputable contractors and skilled laborers. Check their credentials and previous work.

6. **Project Management**:
- **Project Plan**: Develop a comprehensive project plan with timelines, milestones, and responsibilities.
- **Risk Management**: Identify potential risks and develop mitigation strategies.
- **Communication**: Establish clear communication channels among all stakeholders.

26/07/2024

There are several components that make up a swimming pool, each with its own specific uses. Here are some of the key components:

1. Pool Shell: The pool shell is the structure that holds the water and serves as the main body of the pool.

2. Filtration System: The filtration system consists of a pump, filter, and sometimes a heater. The pump circulates water through the filter to remove debris and dirt, while the heater helps regulate the temperature of the water.

3. Skimmer: The skimmer is a device located on the side of the pool that collects debris such as leaves, insects, and other floating particles to keep the water clean.

4. Chlorination System: Chlorine or other sanitizing chemicals are used to keep the water free of bacteria and other harmful contaminants.

5. Pool Cover: A pool cover helps to maintain water temperature, reduce evaporation, and keep debris out of the pool when it is not in use.

6. Pool Lights: Pool light is the light use in the pool for visualisation n beautification