Aiden Engineering

The Name You can count on

Category Building Construction

Construction

Best Construction Company in Nepal, 2020

Construction Companies in Nepal

As Nepal is developing country construction is the key to the development. Several mega projects are carried out by government in coordination with private construction companies. Beside government projects private construction is also on its peak in Nepal. Many residential buildings, commercial buildings, leisure center, fitness centers, shopping malls etc are being built in major cities of Nepal. There are many construction companies in Nepal among them following are some well known construction companies:

  1. CE Construction
  2. Lama Construction Company
  3. Himalayan Builders and Engineers Pvt Ltd
  4. Nepal Adarsha Nirman Company Pvt Ltd
  5. Kalika Group

But here we shall discuss about the upcoming and trust-able company in Nepal i.e. Aiden Engineering Pvt Ltd.

Aiden Engineering Pvt Ltd was founded in 2014 and has its company running in two major cities Kathmandu and Pokhara. Although the head office is located in Battisputali, Kathmandu it provides its construction services throughout Nepal.  Aiden is a complete engineering firm that provides technical consultation, interior designing, product designing, prefab homes and construction. Aiden has been able to collect clients trust by providing quality construction and services.  “The name you can count on“, Aiden always makes sure that client’s satisfaction is top priority.

Out of many services provided by Aiden, construction is one of the major services. It has a qualified team that provides technical supervision and manages project to complete in time. Also quality remains on top priority during construction. Aiden is upcoming construction company that deals with small projects like prefab homes, addition of rooms, interior design and construction to large projects like residential and commercial buildings, swimming pool, futsal etc. We will discuss about the Aiden’s construction services in detail below:

  • Building Construction:

Construction of building is one of the major services provided by Aiden in Nepal. It deals not only with the construction but also with the designs and cost estimations of building. It has been constructing Reinforced Cement Concrete (RCC) buildings as well as steel structured buildings. Aiden has experience in commercial building construction, schools and colleges, cafes construction. Construction is well planned and managed so that everything goes according to the plan. Any changes in the designs or factors during construction will be well coordinated with the owner. Designs are approved from the client and its detail drawings are prepared. Foundations, footings, slab, concreting, rebar specifications etc are constructed according the structure analysis report.

Well qualified and experienced site supervisors will be always available to support the working team. Any confusion during construction will be solved by the engineers who visit sites frequently. Aiden’s team works hard to provide better and quality constructions.

Gym Hall and Sauna Steam Building during construction phase
  • Construction of Futsal

Aiden Engineering designs and constructs futsal according to the client requirement. May be it’s a 5 A-Side or 7-A side futsal ground Aiden will makes the construction possible. Nowadays Futsal grounds are becoming major place for fitness and refreshment in major cities of Nepal. Aiden Engineering can be trusted company to design and construct futsal grounds with quality and lower cost.

  • Swimming Pool Construction

Aiden Engineering also designs and construct swimming pool for fitness centers as well as hotels and private owners. Quality and on time construction of swimming pool can be done by Aiden’s engineering team. All the materials used for construction of swimming pool are of great quality and the workmanship is better. Aiden always provides quality services and quality construction for durability of swimming pool.

Construction of Swimming Pool and Changing Rooms
  • Prefab Homes Construction

Aiden Engineering is one of the best companies to deal with prefab rooms and homes. It has constructed several prefab structures in different parts of Kathmandu and Pokhara. Designs are done by the highly qualified designers to satisfy the client’s requirement and the construction team does the work to obtain the quality and required construction. Aiden has highly experienced and qualified workers who make it possible to maintain the quality required.

School construction using prefab board

Aiden deals from small prefab room addition to entire house construction including foundation. Aiden uses quality prefab materials as well as cement boards to construct partitions of buildings. Appropriate ventilations help to circulate the air inside the house and rooms are designed to utilize maximum space for the client.

After the massive Earthquake of 2015 in Nepal, people have started using prefab structure in construction. Prefab structures are suitable in area like Nepal where there is high risk of earthquake because of its light weight. Aiden is the best company to design and construction of prefab homes and structure.

  • Interior Design and Construction

Aiden Engineering has specialized in interior designing of living room, kitchen, bed room, company interiors, institutional space, office, museum etc. Aiden designs not only building’s interior but also furniture products. Interior designing team inputs their creative skills and maintain high standard look in minimum price. Aiden not only design but do the construction as well.

5 Tips for earthquake resistant buildings

Construction of Earthquake Resistant Building in Nepal

5 Best tips for Earthquake Resistant Building in Nepal

Nepal is geographically located in earthquake prone region and thus there is always a high risk of earthquake in Nepal. Many of us have already witnessed and experienced the earthquake of April 2015 that destroyed many buildings and claimed over 9000 lives. Since its very hard to predict the occurrence of earthquake, its fundamental for all of us to be prepared as much as possible to reduce casualties. Earthquake resistant buildings will definitely help minimize the risk of casualties from building collapse. Out of many factors here are five tips for construction of a earthquake resistant building:

  1. Shape and Size
  2. Proportion of building
  3. Foundation
  4. Ductile frames
  5. Minimized torsion

We will discuss the above mentioned factors in brief:

  1. Shape and Size

Building’s layout and elevation regularity, symmetry and compactness are the geometric parameters that play vital role during seismic influence. Regular shapes like square and rectangle are considered safe during earthquake as compared to shapes like V, C, L, U, H etc. These irregular shapes have variation in stiffness and hence differential motions are created among different parts of building resulting in local stress concentration at the re entrant corners. Also the twisting effect in horizontal plane (torsion) causes higher shear load on far columns and walls forcing them to fail. These effects can be avoided by sub-dividing the building into small rectangular boxes providing seismic gaps in between so that the separated blocks oscillate independently during seismic wave.

Separation joints in irregular buildings shape

Elevations or vertical irregularities of the building consists of irregularities of structural system stiffness discontinuity i.e. soft storey, weight irregularity, discontinuity of vertical lateral force resisting elements and strength discontinuity i.e. weak storey. Such irregularities in building elevation should be avoided as much as possible.

The earthquake force developed at different floor of buildings should be transferred to foundation through shortest and direct path. Any discontinuity in the load path caused by discontinuous column, floating columns, vertical setbacks causes sudden leap in earthquake forces resulting in poor performance during earthquake. Such situation should be avoided as much as possible and should have uniform stiffness to make it earthquake resistant.

Effect of soft storey during earthquake

2. Proportion of Building

Proportion of buildings also plays an important role in making a building earthquake resistant and hence proper building proportion is preferred. In narrow and very long buildings, the ground imparts very different earthquake vibration to different parts of building causing severe damage. If buildings have very long horizontal dimension, differential arrival of seismic wave in different part of building might cause problems. Hence it is advised to keep the ratio of breadth to length of buildings within 1:3.

Every building has a natural period or resonance which is the number of seconds it takes for the building to naturally vibrate back and forth. As the height increases, the natural period of the building increases shifting it into the range where response amplification is lower. Height to width ratio plays crucial role during seismic wave. Slender buildings have high compressive and tensile forces on outer columns during seismic event which results in rapid strength and stiffness degradation of these columns. Hence to make a building earthquake resistant it is advised that height of building should not exceed 3 times the width of building.

3. Foundation

Foundation is the lower part of building that transfers the load into the soil below. After the Earthquake of 2015, people of Nepal have started the practice of soil testing before construction of buildings but that too has been reducing day by day. Detailed soil investigation must be carried out before construction as nature of the soil can be different even in adjacent sites. Foundation of the building must be designed after the soil test and recommendations from Geo-technical engineers regarding nature of soil, its bearing capacity, position of ground water table, the prospects of liquefaction and so on to make it earthquake resistant.

Foundation can be designed according to the type of land. It is advised not to construct building in land more steep than 20 degrees (1:3, vertical: horizontal). There can be stepped strap footing for slope land that should follow structure analysis done by engineers. Foundation is very crucial to buildings stability during earthquake movements. The are many types of foundation like strapped footing, combined footing, isolated footing, mat foundation etc which are selected according to the site condition and soil test results.

4. Ductile frames

Ductility in material science is defined as ratio of ultimate strain to yield strain of material. The frame of the building which has adequate ductility can undergo deformation without collapsing. Masonry construction is inherently brittle hence all the elements must be tied together to act as a single unit. It is the best possible way to make a structure earthquake resistant. We must make our elements bond and bind together for strong and durable construction. In case of Reinforced Cement Concrete (RCC) buildings ductility can be improved by proper structure designs using codes of practice like IS 13920.

Ductile mechanism

When a structure undergoes dynamic forces like seismic forces, the structure could not remain elastic anymore and damage is taken. It can go through plastic stage or fracture or damage, where stiffness will be decreasing and deformation will increase even when the force applied is not so strong. Hence this situation must be expected by engineers and they should ensure that the structure sustains these loads without large deformation or collapse.

For ensuring economy and safety of building structure under unexpected earthquake forces, the best method opted is to let the structure take damage either by means of plasticity, fracture, crushing etc all the while keeping its strength to carry vertical loads during deformation without collapse. Ductility of frames is very important during earthquake to minimize the damage taken and saving lives of people from collapsing buildings.

5. Minimized Torsion

If the building is irregular or asymmetric some parts of building deflect more and some less during the seismic event. This difference in deflection causes whole building to rotate leaving the corners and ends at more stress and makes them more prone to failure. This rotation of the building in known as torsion. Torsional effect of non symmetrical buildings makes design of earthquake action more complicated as compared to symmetrical buildings which has pure translation response. Causes of torsion in the buildings are:

  • Non symmetric distribution of masses
  • Torsional motion of ground by seismic wave and ground motion in-coherency
  • Stiffness of non structural elements which are not explicitly accounted for design like brick infill walls
Torsional forces and its effects

Torsion is created when center of the mass and center of rigidity do not coincide with each other. The distance between these two points is known as torsion eccentricity. The members resisting horizontal forces should be arranged so that the center of rigidity and center of mass in each floor lie close to each other in both major axes.

Many buildings have been destroyed due to this torsional effect during past earthquakes. If it is not completely avoided the best way is to minimize such effects by making a symmetrical building plan i.e. uniformly distributed mass and uniformly placed vertical members of the structure.

However if the twist or torsion cannot be avoided, special calculations need to be done to account additional shear forces in design of building process to ensure structure is earthquake resistant. IS 1893:2002 codes has provisions for such calculations.

Hence shape and size of the buildings play important role in making the structure earthquake resistant and minimizing damage as much as possible. It is always advisable to carry out a soil test and consult an engineer to design the building and perform a structural analysis. Prefab homes have also come up as effective alternatives to traditional buildings to minimize the casualties from earthquake in Nepal. These are basic tips for earthquake resistant buildings that are very crucial to face seismic forces and to avoid large amount of damage to buildings as well as lives of people.