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👉Structural analysis in building construction refers to the process of assessing and determining the effects of loads and forces on structures.
🚧This analysis is crucial for ensuring that buildings and other structures can safely withstand various stresses and remain stable throughout their lifespan.
📜Here are the key components of structural analysis:
1. Load Assessment:
- Structural analysis starts with identifying the various loads that a structure will experience, including dead loads (permanent/static loads like the weight of the building materials), live loads (temporary/dynamic loads such as occupants or furniture), wind loads, seismic loads, and snow loads.
2. Material Behavior:
- Understanding how different materials (like steel, concrete, and wood) respond to stress and strain is essential. Structural analysis considers material properties, such as strength, elasticity, and ductility.
3. Structural Models:
- Engineers create mathematical models or simulations of the structure to predict how it will behave under different loading conditions. This can involve using software tools for complex structures.
4. Internal Forces and Moments:
- The analysis calculates internal forces (tension and compression) and moments (torque) within structural elements, like beams, columns, and slabs, to ensure they can support the applied loads without failing.
5. Design and Optimization:
- The results of structural analysis inform the design process, helping engineers determine the dimensions and materials needed for structural components to ensure safety, functionality, and cost-effectiveness.
6. Safety and Compliance:
- Structural analysis ensures that buildings meet safety standards and building codes, which are established to protect public safety and welfare.
⏺Overall, structural analysis is a fundamental aspect of civil and structural engineering, enabling the design of safe, efficient, and durable buildings and infrastructures.
@etconp
566
07:13
17.05.2025
👉In road construction, the terms "subgrade" and "embankment" refer to different layers and functions within the pavement structure.
1. Subgrade:
- The subgrade is the native soil or material that forms the foundation for the road. It is the layer directly beneath the pavement structure.
- Its primary role is to provide support and stability to the road above. The quality of the subgrade greatly affects the overall performance and durability of the roadway.
- The subgrade is usually compacted to increase its load-bearing capacity and reduce settlement.
2. Embankment:
- An embankment is a raised structure built using soil or other materials to elevate the roadway above the surrounding terrain. It is often used in areas where the natural ground level is too low or where drainage is a concern.
- Embankments can be made from various materials, including earth, gravel, or other fill materials. The construction of an embankment usually involves careful compaction to ensure stability.
- Embankments can also help in managing water drainage and preventing erosion.
In summary, the subgrade is the prepared layer of soil that supports the road, while an embankment is a constructed elevation to raise the road above the surrounding land. Both are critical for the overall stability and longevity of a road.
@etconp
1138
04:51
17.05.2025
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0904040477
0994941708
1139
04:16
17.05.2025
👉In building construction, load-bearing structures and frame structures represent two distinct approaches to supporting loads.
💫Here’s an overview of their differences:
🚧Load-Bearing Structures
1. Definition: In load-bearing structures, the walls themselves support the weight of the building and its contents. The walls are thick and made of materials like brick, stone, or concrete.
2. Load Distribution: The loads (dead and live) are transferred directly through the walls to the foundation.
3. Design Flexibility: There is limited flexibility in design and layout since the walls must be strategically placed to support loads. Removing or altering walls can compromise structural integrity.
4. Construction Materials: Commonly uses masonry or concrete for walls, making it generally more labor-intensive.
5. Height Limitation: Typically not suitable for very tall buildings due to the heavy load on walls.
🚧Frame Structures
1. Definition: Frame structures use a system of beams and columns to support loads. The walls (often non-load-bearing) are not essential for structural support.
2. Load Distribution: Loads are transferred through the columns to the foundation, allowing walls to be lighter and more varied in design.
3. Design Flexibility: Offers greater architectural flexibility, allowing for open floor plans and the easy alteration of interior spaces.
4. Construction Materials: Often constructed with steel or reinforced concrete, which allows for taller buildings with fewer materials.
5. Height Suitability: Suitable for high-rise buildings due to the strength of the frame system.
📜Summary
⏺In essence, load-bearing structures rely on walls for support, while frame structures utilize a skeletal framework. This fundamental difference impacts design, materials, height capabilities, and overall flexibility in construction.
@etconp
2013
15:19
16.05.2025
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👉Waffle Slab is a type of flat reinforced concrete slab that uses a grid system of ribs in two directions, resembling the pattern of a *waffle*, hence the name.
📌 Key Features
- It consists of a concrete slab supported by a network of intersecting ribs.
- The ribs are formed using reusable plastic or steel molds.
- It is typically used in wide-span areas requiring high load resistance without the need for drop beams.
✅ Advantages
1. *Concrete savings* compared to traditional slabs.
2. *Lighter weight*, reducing loads on columns and foundations.
3. *High crack resistance* due to effective load distribution across the ribbed network.
4. *Aesthetic architectural look*, and can be left exposed in modern designs.
❌ *Disadvantages
- *More complex execution* requiring high precision in mold placement.
- *Higher formwork cost* compared to conventional slab systems.
- *Not suitable for small areas* or those with dense internal partitioning.
@etconp
2491
07:56
16.05.2025
👉Breakdown of Lump Sum Prices under FIDIC Contracts
In FIDIC contracts, lump sum prices are commonly used for specific items or packages of work. However, these lump sum prices can create challenges when it comes to interim payments, variation valuation, and potential disputes. To address these challenges, FIDIC contracts require the Contractor to provide a breakdown of lump sum prices.
The breakdown of lump sum items is a requirement under FIDIC contracts, specifically Sub-Clause 14.1(d) of Fidic 1999, equivalent sub-clause within 1987 edition is Sub-Clause 57.2. The purpose of this breakdown is multifaceted:
1. Facilitates Interim Payments: By providing a detailed breakdown of lump sum prices, the Contractor enables the Engineer to calculate the values to be included in Interim Payment Applications, ensuring a smoother payment process.
2. Reduces Scope for Argument: By providing a clear breakdown of lump sum prices, the Contractor and Engineer can reduce the scope for argument and potential disputes regarding the proportion of items included in the Schedules as lump sums.
3. Supports Variation Valuation: The breakdown helps to determine the proportion of lump sum prices that should be included in each Variation, ensuring that payments reasonably reflect the distribution of the lump sums over the period of the Contract.
In summary, the Contractor will typically wish to be paid in full for the item at the earliest possible moment. The Engineer, while not bound by the breakdown, is expected to discuss any queries or changes with the Contractor. The breakdown of lump sum items is essential for facilitating interim payments, enabling process of smooth IPCs, reducing the scope for argument, and supporting variation valuation.
@etconp
2578
04:47
16.05.2025
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@etconp
2669
15:33
15.05.2025
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👉DIFFERENTIAL LEVELING
🚧1)Bench mark (BM)
⏺relatively permanent point of known elevation
🚧2). Backsight (BS) - a sight taken to the level rod held at a point of known elevation (either a BM or TP
🚧3)Height of instrument (HI) - the elevation of the line of sight of the telescope
🚧4)Foresight (FS) - a sight taken on any point to determine its elevation
@etconp
2539
11:24
15.05.2025
👉What Is The Difference Between Bridge And Culvert
💫A bridge and a culvert are both structures used to cross obstacles like waterways, but they differ in size, purpose, and construction. A bridge is a larger structure that spans over an obstacle, allowing traffic to pass above it.
A culvert is a smaller, often tunnel-like structure that allows water or traffic to pass under a road or other obstruction. Essentially, a bridge carries traffic over, while a culvert carries traffic and water under.
🏷What is a Culvert
⏺A culvert is a man made tunnel-like structure that carries a stream under a railway or road. When compared to a bridge, its structure is quite simple, and its key components include concrete boxes or cells, a slab or a top deck, pipes, and other supporting parts.
⏺A culvert is most frequently embedded in the soil and supports a huge portion of the culvert load. It is usually built as an enclosed structure. It may come in rectangular, semi-circular, pear, or elliptical shapes. A culvert can also be an enveloping structure that comes with two sides, a floor, and a roof.
⏺A culvert is usually around 6 meters in length. Unlike a bridge, a culvert does not require a deep foundation. It is generally built at a height of less than 20 feet over a particular obstruction. Culverts can either be built on the site or pre-constructed and shifted. Most significantly, its simple structure and design have made it possible to construct culverts with less labor in a relatively lesser time period.
📍The purpose of constructing a culvert is mainly to facilitate roadways both over and under the deck. A culvert is generally built to facilitate the flow of water through channels or tunnels under a roadway or a railway. Therefore a culvert is a reliable solution to prevent floods, waterlogging, and erosion.
🏷What is a Bridge
⏺A bridge is a passage we use for transportation. A bridge is usually constructed over a large water body or physical obstruction. The principal components of a bridge include the superstructure, the substructure, and the deck.
⏺Bridges usually have complex structures. Piers and abutments are the supporting structures found in a bridge. Bridges usually have linear and straight assage. A bridge may usually extend from 6 meters to more than 120 meters and have extremely deep and strong foundations.
⏺Similar to a culvert, bridges can be both pre-constructed and constructed on-site. However, unlike the construction of culverts, the construction of bridges requires more manpower, a substantial budget, and a lot of time.
🔰Similarities Between Culvert and Bridge
⏺Both culvert and bridge are manmade structures that facilitate travel and transport.
They both require manpower, time, and capital.
⏺Both culverts and bridges can be pre-constructed or constructed on the site.
Difference Between Culvert and Bridge
⏹Definition
⏺A bridge is a manmade structure constructed over a large water body or physical obstruction, while a culvert is a tunnel-like structure built to allow water to pass under a railway or a roadway.
⏹Nature
⏺Culverts are simple in structure and design, while bridges are more complex.
⏹Size
⏺Moreover, culverts tend to be smaller than bridges.
🎲Main Components
⏺Key components of a culvert include concrete boxes or cells, a slab or a top deck, pipes, and other supporting parts, while key components of a bridge include the superstructure, substructure, and deck.
🎲Structure
⏺A culvert has an enveloping structure that comes with two sides, a floor, and a roof, while a bridge usually has linear and straight assage. In contrast to a culvert, a bridge has no floor.
🎲Construction
⏺Unlike the construction of culverts, the construction of bridges requires more manpower, a substantial budget, and a lot of time.
📜Conclusion
⏺In conclusion, the main difference between culvert and bridge is that a bridge is a passage we use for transportation over a large water body or physical obstruction, while a culvert is a tunnel-like structure that allows water to pass under a railway or a roadway.
@etconp
2680
08:06
15.05.2025
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👉Kicker
💫The small concrete step used at the bottom of walls or columns, a column kicker's main job is to make sure that the coordinates are maintained between floor slabs.
🚧Column kickers are only used at the position where walls and columns are constructed.
@etconp
2662
05:03
15.05.2025
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