ADVANTAGES OF MIVAN FORMWORK OVER BRICKWORK Mivan construction offers Joint less construction which gives better resistance in earthquake. It provides good durability and stability. It is mostly used in mass construction and group housing. It gives smooth and precise finishing of wall and slabs.

What is mivan construction disadvantages?

Cons of using MIVAN technology: –

1. The aluminium formwork construction method is expensive than conventional ones as the initial cost of the process is very high. But the reduced time, quality of construction and need of fewer workforce balances the cost.
2. The method can only be implemented in structures that are uniform and symmetrical in type. Alterations cannot be made in different floors according to different wishes and needs.
3. At the beginning of the construction process, the initial setup takes most of the time. The ground floor/stilt levels of high rise buildings take a long time when they are constructed using aluminium formwork method.
4. For precise alignment and safe construction practices, only skilled labour can be used in this type of construction.
5. Wall tie holes need grouting with GP2 material to prevent leakages in the columns of the structures.

How strong is mivan construction?

The finishing on the structures is smoother in Mivan system which makes the structure up to 30 per cent more durable than the conventional construction system.

What is mivan slab?

Did you know that Mivan shuttering can leave behind traditional ways of construction? Most real estate developers and Indian homebuyers may shy away from Mivan technology, but if problems like project delays and a lack of skilled workforce need to be addressed, it is time the Indian real estate sector tried its hand at Mivan construction. Let us explore what Mivan formwork actually means, and how it is helpful in the realty space. You must know this; Mivan shuttering is a fast-paced construction technology that offers strength and durability to a building by use of aluminium formworks.

Mivan shuttering which is being promoted for its ability to aid mass construction activity has blown up since the onset of the pandemic, as housing demand has increased. Mivan shuttering rate ranges from Rs.8000 – Rs.9000 per sqm. without any taxes. The cost varies and depends on the repletion of formwork, more repetition reduces the cost per sqm.

well, generally the area is calculated in terms of square meters for the Mivan slabs. Read: The Best Sunmica Door Design Of 2022 with Pictures Book Best Packers & Movers with Best Price, Free Cancellation, Dedicated Move Manager Get Rental Agreement With Doorstep Delivery, Super Quick & Easy This is third This is third This is fourth This is fourth This is fifth This is fifth This is six This is six This is seven This is seven This is eight This is eight mivan construction technology Mivan is a quality aluminium structure developed by a European construction company known as Mivan Company Ltd. In 1990, the company from Malaysia began manufacturing these formwork systems. This innovative form of work is actually suitable for constructing houses in large quantities at a faster speed.

The speed of construction needs to be given greater importance, especially for large housing projects or township projects. In order to respond to these unusual challenges in terms of time, cost and quality, the real estate industry has come up with a smart method of construction known as the “MIVAN formwork system”.

There are a number of buildings in Mumbai that are being constructed with the help of Mivan technology, which has been declared economical as well as satisfying for the overall Indian real estate market. Mivan technology has been used widely in Europe, Asia, Gulf Countries, and other parts of the globe.

What is Mivan system?

What is Mivan technology and what are its uses Mivan is a quality aluminum structure developed by a European construction company known as Mivan Company Ltd. In 1990, the company from Malaysia began manufacturing these formwork systems. This innovative form of work is actually suitable for constructing houses in large quantities at a faster speed.

The speed of construction needs to be given greater importance, especially for large housing projects or township project. In order to respond to these unusual challenges in terms of time, cost and quality, the real estate industry has come up with a smart method of construction known as the “MIVAN formwork system”.

There are a number of buildings in Mumbai that are being constructed with the help of the Mivan technology, which has been declared economical as well as satisfying for the overall Indian real estate market. Mivan technology has been used widely in Europe, Asia, Gulf Countries, and other parts of the globe.

Can we break mivan wall?

Absolutely NO! If a building/apartment/villa or any sort is built with MIVAN technology, the possibility of leakage issues is extremely low.

Is mivan construction heat resistant?

Heatwaves and Mivan Construction

12 May 2022 CW Team The Mivan technology enables extremely rapid construction, improves durability and earthquake resistance, and reduces wall thickness and increases carpet area in high rise buildings.

The Mivan construction technology essentially comprises a highly durable aluminum formwork fabricated in the shape and layout of the building including the walls, columns, beams, and slabs. It is extremely modular and uses the same formwork for all the floors of the building.

1. The steel reinforcement is fixed within the formwork and concrete is poured into it to make the different members of the building.
2. When something sounds too good to be true, it is.
3. As good as Mivan construction sounds, however, there are some disadvantages: High modularity comes at the cost of extremely low flexibility.

The initial cost of making the formwork is prohibitive and therefore is only suitable for skyscrapers or extremely large sized projects. But those are not its biggest disadvantages. The proverbial cake is taken by thermal insulation. Mivan construction technology uses reinforced cement concrete as its only material. Since the entire building is made with concrete and steel, both being materials that offer notoriously low thermal insulation, energy efficiency of such structures is almost zero.

What’s worse is that the entire external shell of the building is made with extremely thin concrete sections which transfer heat into the indoors very easily, given its high thermal conductivity. In fact, it’s only marginally better than sheet metal when it comes to thermal insulation. Obviously then, when heatwaves occur, homes in such buildings will be rather similar to the depths of hell, which are constantly on fireapparently.

However, the problem is only made worse once you consider how we counteract this trait of Mivan construction. Considering that people residing in such tall buildings would normally have access to air conditioning, the switch is turned on without caution, triggering a Catch-22: the hotter it gets, the more air conditioning we’d need, triggering an increased consumption of electricity, which would cause higher carbon emissions and global warming.

What is life of Mivan construction?

Advantages of Mivan shuttering – As already mentioned, mivan technology helps fasten the speed of construction and sometimes even yields a better quality of construction. The finishing is smooth when Mivan technology is used. It is not labour-intensive and there is an economy of scale as well.

Which type of slab is best?

Flat slabs are some of the most common types used in commercial construction projects. Consider a flat slab for a parking lot or a floor with or without drop columns. Other options are ideal for specialized projects, such as kitchen slabs.

Is mivan construction earthquake proof?

Earthquake Response of Different Shapes of Tall Vertically Irregular Mivan Wall Building DOI : 10.17577/IJERTV5IS080172 Anagha M, Anoop P P, 2016, Earthquake Response of Different Shapes of Tall Vertically Irregular Mivan Wall Building, INTERNATIONAL JOURNAL OF ENGINEERING RESEARCH & TECHNOLOGY (IJERT) Volume 05, Issue 08 (August 2016), http://dx.doi.org/10.17577/IJERTV5IS080172

• Anagha M
• M Tech Student, Department of Civil Engineering, Vimal Jyothi Engineering College,
• Chemperi, Kannur, Kerala.
• Anoop P P
• Assistant Professor, Department of Civil Engineering, Vimal Jyothi Engineering College,
• Chemperi, Kannur, Kerala.

Abstract For an effective housing plan, buildings have to be constructed with minimum time and maximum quality. Aluminium formwork Mivan technology is a remedial measure for this problem in which walls and roofs are constructed in a single stage. The present work focuses to check the reduction of seismic response for different shapes.

L shape, O shape and H shape for ten storeys conventional and Mivan wall building having stiffness and mass irregularity were analyzed by Response Spectrum Method using ETABV.9.7.1 software. Results were compared for time period, storey displacement and storey shear for both conventional beam column building and Mivan wall building.

From the analysis results time period, Storey displacement and storey shear were minimum for L shape and Mivan buildings had their three results less than that of conventional building. Storey shear values were decreasing from base to top. It can be concluded that L shape Mivan building is the best shape by their seismic response in all the three irregularities.

1. INTRODUCTION India is one of the developing countries in the world. Construction industry contributes the best part of development. Past earthquake analysis shows disastrous effect on living and non living things amplified the necessity of conventional lateral load resisting systems. It has lead to adopt new technologies and approaches in order to increase the overall efficiency of the project. Luckily, certain progressive technologies providing quicker construction are already available in the country. For example autoclaved blocks, Prefabrication, tunnel formwork, and aluminium formwork (MIVAN Technology) of construction etc. Among them Mivan technology is used worldwide.Mivan is an aluminium formwork system used greatly for the construction of mass housing projects and residential buildings in which entire floors are casted monolithically with the help of pre-fabricated formwork units. This monolithic system of slabs and walls are one of the chief characteristics improving the seismic behaviour of RC walled structures. In the present thesis work beam column buildings and Mivan wall buildings are compared to find out the best shape among them. For that ten storey vertically irregular beam- column buildings are created in ETABV.9.7.1 software. Then they are compared with Mivan wall buildings which are created by replacing the beams and columns by Mivan wall of 200mm thick. The vertical irregularities that are considering are mass irregularities and stiffness irregularities. For each irregularity three different shapes L, H and O shapes of buildings are created. Main objectives of the project are;
   • To study the earthquake response of Tall vertically irregular Mivan wall building by response spectrum analysis.
   • To study the earthquake response of different shapes of Tall vertically irregular Mivan wall building by response spectrum analysis.
   • To compare the earthquake response of different shapes of Tall vertically irregular Mivan wall buildings with normal beam column building
   • To find out the best shape of building which is having the highest seismic response characteristics.
2. 1. BUILDING DESCRIPTION
   2. The plan dimension of the building is 40 X 24 m Building is located on seismic zone IV and Type II soil.
   3. TABLE I. SALIENT FEATURES OF THE BUILDING

   1	Zone	IV
   2	Soil type	Type II soil
   3	Number of storeys	10 (G+9)
   4	Beam size	450 x 600 mm
   5	Column size	750 x 750mm
   6	Storey Height	3m throughout the storeys
   7	Material Properties	For column and wall = M40 For beam and slab = M25
   8	Slab thickness	150mm
   9	Mivan wall thickness	200mm
   10	Seismic analysis	Response spectrum analysis

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3. MODELING AND ANALYSIS Buildings with 40 x 24m plan dimension and storey number ten are created by using ETAB V.9.7.1 software. Then they are modified to obtain L, H and O shapes in Vertical direction. The structural models have the same story height of 3m. In the present work both conventional and Mivan wall buildings are created. Dynamic analyses for all the models are performed using response spectrum analysis. In conventional buildings, beams of size 450 x 600 mm and columns of size 750 x 750mm are placed throughout the height of buildings. Support conditions are assumed as fixed. Same models are created in stiffness and mass irregularities. In the case of Mivan wall buildings the columns and beams are replaced by special Mivan wall of 200mm thickness throughout the height. L shape models created in E TAB are shown below. Fig.1. L shape Conventional building A. Loading Details Loads which are applied on the building are dead load, imposed load and earthquake load. They are calculated as follows;
   1. Dead Load: The dead load of the structure is obtained from Table 1, Page 8, of IS 875 Part 1 1987. From the table, the unit weight of concrete is taken as 25kN/m3. The software has an inbuilt dead load calculator. Floor finish is taken as 2 kN/m2,In dead load wall loads comes. Wall load is calculated as;
      • Wall load = Thickness of wall X Height of wall X Density of the brick
      • = 0.2 x 3 x 22
      • = 13.2 kN/m
      • Where;

      Thickness of wall is taken as 200 mm and height of wall as 3m. Density of brick and plastering are obtained from IS 875. Density of brick as 20kN/ m3. Density of plastering is 2kN/m3 and then total density is obtained as sum of the brick density and plastering density as 22kN/m3. Terrace load is obtained as same as that of wall load,In terrace height of parapet wall is 1.2m. So terrace load is obtained as; Parapet wall load = 0.2 x 1.2 x 22 = 5.28 kN/m

   2. Imposed Load: The imposed load on the floor is obtained from Table 1 of IS 875 (Part 2) 1987. The uniformly distributed load on the floor of the building is assumed to be 4.0 kN/m2 (for assembly areas, corridors, passages, restaurants business and office buildings, retail shops etc). Imposed load on roof is taken as 1.5 kN/m2, and on floors is 4.0 kN/m2
   3. Earth Quake Load: The structure is assumed to be in Zone-IV as per IS 1893 2002. So the zone factor is taken as per Table 2 of IS 1893 2002. Zone factor obtained is 0.24. The damping is assumed to be 5%, for concrete as per Table 3 of IS 1893-2002. Importance factor is taken as 1 as per Table 6 of IS 1893 2002.Type II soil is assumed here.
   4. Load combinations: The load combinations are obtained from page no 13, clause 6.3.1.2 of. IS 1893 2002.The load combination selected here is; DLEQX=1.2(DL+LL+SPECX) Based on the analysis tie period, Storey displacement and storey shear are compared for all the models in three irregularities. Fig.2. L shape Mivan wall building
4. RESULTS AND DISCUSSION
   1. Stiffness Irregularity Stiffness irregularity is created by replacing Mivan walls by beams and columns in first storey for 10 storey building. Frame loads are not applied for the corresponding storeys.
      1. Time period (sec) Fig.3. Time period V/S Modes of conventional building Fig.4. Time period V/S Modes of Mivan wall building While comparing the time period values of three shapes, for L shape building has the minimum time period in both cases. Time period values of Mivan wall buildings are much lesser than beam column buildings for all shapes. Maximum values of time period for all the shapes in conventional building lie in between 0.8 1.2 second. But in Mivan it is reduced to 0.25 3 seconds.
      2. Storey Displacement (mm) Fig.5. Storey displacement V/S Storey Levels of conventional building Fig.6. Storey displacement V/S Storey Levels of Mivan building From the above graphs in case of conventional building and Mivan, L shape has less displacement value than others. The values are approximately half the values of other two. Also storey displacement values of Mivan are less than that of conventional building. That is maximum storey displacement value of all shapes in conventional building lies in the range of 10 12mm. But in the case of Mivan it is reduced to 0.8 1.6mm.
      3. Storey shear(kN)

      Fig.7. Storey shear V/S Storey Levels of conventional building Fig.8. Storey shear V/S Storey Levels of Mivan building From the above graphs it is clear that storey shear decreases from bottom storeys to top. For both conventional and Mivan buildings minimum storey shear is for L shape as compared to other shapes.

   2. Mass Irregularity

   Mass irregularity is created by placing 8kN/m3 instead of 4kN/m3 in 8th storey for ten storey building.

   1. Time period (sec) Fig.9. Time period V/S Modes of conventional building Fig.10. Time period V/S Modes of Mivan wall building By comparing above graphs it is found that time period is decreasing from 1st mode to 12th mode. In conventional building and Mivan building minimum time period is for L shape. It is about 0.8 sec and 1.6 sec respectively. Mivan building shows lower time period values than conventional. Maximum values of time period for all shapes in conventional building lie in between 0.8 to 1.6 seconds. But in Mivan it is reduced to 0.12 to 0.16 seconds.
   2. Storey Displacement (mm) Fig.11. Storey displacement V/S Storey Levels of conventional building Fig.12. Storey displacement V/S Storey Levels of Mivan building By comparing the above two graphs storey displacement values of L shape building is minimum as compared to other two shapes. Also displacements values of conventional building are greater than Mivan. Maximum storey displacement value of all shapes in conventional building lies in the range of 10 12 mm. But in the case of Mivan it is reduced to 0.1 to 0.6mm.
   3. Storey shear(kN) Fig.13. Storey shear V/S Storey Levels of conventional building Fig.14. Storey shear V/S Storey Levels of Mivan building From the above graphs the storey shear values are decreasing from bottom to top storeys. For both conventional and Mivan wall buildings minimum storey shear is for L shape as compared to other shapes. Minimum value of L shape is approximately 4000kN in both conventional and Mivan.
5. CONCLUSION

From the analysis following conclusions are obtained;

• Time period, storey displacement and storey shear are minimum for L shape Mivan building.
• All the results of Mivan wall building are less than that of conventional building.
• From all the results it is found that Mivan buildings are very effective in resisting the lateral forces induced by earthquake.
• Because of the box effect of modular type scheme, it is increasing overall stiffness of the building thus, reducing the sway problem in the structure.
• From the work it is concluded that L shaped Mivan building is the best shape in terms of their response characteristics.

REFERENCES

1. Anantwad Shirish and Prof.M.R.Wakchaure Effect of Plan Irregularity on High-rise Structures IJAIR 2012.
2. Deepak Suthar, H S.Chore and P.A. Dode High rise structure subjected to seismic forces and its behavior, Proceedings of 12th IRF International Conference, 29 June- 2014.
3. Dong Guen Lee and Seok Yong Lee, An efficient model for prediction of torsional effects of Multi-storey building structures, Nineteenth world conference on Earthquake engineering August 1998.
4. Hema Mukundan and S.Manivel, Effect of Vertical Stiffness Irregularity on Multi-Storey Shear Wall-framed Structures using Response Spectrum Analysis International Journal of Innovative Research in Science, Engineering and Technology Vol.4, Issue 3, March 2015.
5. IS 875 (part 1)1987: Indian Standard code of practice for design loads (other than earthquake) for buildings and structures.
6. IS 875 (part 2)1987: Indian Standard code of practice for design loads (other than earthquake) for buildings and structures.
7. IS 1893 (Part 1) 2002 : Indian standard Criteria for Earthquake Resistant Design of Structures part 1 General Provisions and buildings(Fifth revision), Bureau of Indian standards,New Delhi.
8. J.N.S. Suryanarayana Raju and Senthil Pandian,M, K., Detailed Analysis and Design of Slab-Wall System and Column-Beam System Concrete Building,International Journal for Scientific Research & Development Vol.2, Issue 02, 2014.
9. Raúl González Herrera1 and Consuelo Gómez Soberón, Influence of plan irregularity of buildings, The 14th World Conference on Earthquake Engineering October 12-2012.
10. Rucha S. Banginwar, M.R. Vyawahare and P.O. Modani, Effect of Plans Configurations on the Seismic Behavior of the Structure By Response Spectrum Method ISSN Vol.2, Issue 3, May-Jun 2012.

: Earthquake Response of Different Shapes of Tall Vertically Irregular Mivan Wall Building

Which formwork is best?

Steel formwork rather than wood formwork – why: –

• The steel forms are more resistant, durable and last longer when compared to wooden formworks; plus, their reuse is more frequent.
• Steel formworks can be installed and removed easily and quickly.
• Using steel formworks ensures a better quality of the concrete surface and do not require further treatment.
• Steel formworks do not absorb moisture from concrete.
• Steel formworks do not shrink nor deform.