HRRP Technical Coordination Meeting

1 HRRP Technical Coordination MeetingHousing Recovery & R...
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1 HRRP Technical Coordination MeetingHousing Recovery & Reconstruction Platform (HRRP) 2ndJune,2017 Rasuwa

2 Agendas HRRP Welcome/ IntroductionCoverage of Technical Assistance In the district Design catalogue for reconstruction of earthquake resistant houses- Vol II  Information of design and detailing of 11 typical non-complaint cases on RCC structure Information on correction and exception manual – Updated Inspection form on the basis of correction and exception manual Technical assistance Challenges and Experience Sharing. Remarks from DUDBC Closing remarks from NRA Housing Recovery & Reconstruction Platform (HRRP)

3 Enrollment Update Grievances Listed 1,367HH 1st Tranches 9,109HHTotal Eligible 11,236HH Grievances Addressed 1,318HH 2nd Tranches 488HH Housing Recovery & Reconstruction Platform (HRRP) Total Enrolled 9,682HH 3rd Tranches 37HH

4 Status of Technical Assistance (HRRP 4W)Vocational Training Demo Construction Orientation Helpdesk D2D Tech Support Short Training 370 individuals trained across 13 VDC 838 individuals trained across 15 VDC 86 Demo Construction across 16VDC 2923 HH reached in 9VDC 4462HH orientated across 14 VDC . 6 helping desk formed in 4 VDC 98 Reconstruction Coordination Committee formed in 12 VDC

5 Challenges for TA (HRRP Technical Workshop ):Minimum participants form local community. Language Barrier. Community seeks incentives during the participation. People are not interested in lecture methods of message delivery. Follows traditional methods of construction. Insufficient budget for the reconstruction. Lack of technical knowledge and difficult for the beneficiaries to understand technical terminologies. Unavailability of house owner during technical inspection.   High expectation of labors. Political interference regarding selecting masons. Follow up mechanism . Lack of understanding regarding help desk. Design not complied between government and partners. Hard to convince earthquake resilient technology. Landslide prone zone area. Housing Recovery & Reconstruction Platform (HRRP)

6 TECHNICAL COORDINATION BRIEFING

7 DUDBC Design Catalogue Vol. 2

8 Introduction DUDBC has prepared the document.It covers seventeen model design following twelve technologies. The designs provided in this catalogue are based on calculations, model test and analytical tests as these technologies are not covered by Nepal National Building Code, 2060. It covers mainly Alternative Construction Materials and Technologies.

9 Alternative Construction Materials and Technologies.Should be Locally available Production and correction on construction method from local People. Strong, Cheap & durable. Should be Preferred by Customer or house owner

10 Catalogue Objective To pave way for use of alternate materials and technologies in the reconstruction process as per the principles set by Post Disaster Needs Assessment (PDNA) for housing and human settlements recovery and reconstruction.

11 Housing Recovery & Reconstruction PlatformCatalogue Limitation Designs included in this catalogue can be selected and used as they are, for reconstruction of urban and rural housing . For designs, other than those included in this catalogue, detailed engineering design and approval from concerned authorities shall be done. Housing Recovery & Reconstruction Platform (HRRP)

12 Housing Recovery & Reconstruction Platform (HRRP)Lists of Model Interlocking Brick Masonry One Storey One Storey Two Storey Confined Hollow Concrete Block Masonry Hollow Concrete Block Masonry Compressed Stabilized Earth Block Masonry Random Rubble Masonry in Mud mortar with GI wire Containment Bamboo and Stone Masonry Hybrid Structure Two Storey Rat Trap Bond Masonry One Storey Earth Bag Masonry Light Gauge Steel Structure Steel Structure Timber Structure Debris Block Masonry Housing Recovery & Reconstruction Platform (HRRP)

13 Housing Recovery & Reconstruction Platform (HRRP)Model details Interlocking Brick Masonry One Storey Interlock Brick Technology consists of specially designed unburnt bricks with tongue and groove features that allows bricks to interlock each other in masonry and thereby reduces mortar usage. Confined Hollow Concrete Block Masonry Hollow concrete block walls carry the seismic loads and the Reinforced Concrete Columns of minimal size are used to confine the walls. Housing Recovery & Reconstruction Platform (HRRP)

14 Housing Recovery & Reconstruction Platform (HRRP)Model details Contd. Hollow Concrete Block Masonry Load bearing structure of hollow concrete blocks are seen as a good alternative to conventional brick masonry as they can be locally manufactured, cheaper and environment friendly. Compressed Stabilized Earth Block Masonry Compressed Stabilized Earth Block (CSEB) Technology makes use of mud as a predominant building material. The properties of soil used are improved by using stabilizers like cement. This Block is prepared by machine. Housing Recovery & Reconstruction Platform (HRRP)

15 Housing Recovery & Reconstruction Platform (HRRP)Model details Contd. Random Rubble Masonry in Mud mortar with GI wire Containment This technology is an improvement on random rubble masonry structure by introduction of GI containment wires. GI wire prevent from flexural failure and delamination of walls. Bamboo and Stone Masonry Hybrid Structure Local bamboo (Banbusa Nutans), seasoned and treated, is used in a structural frame with bamboo wattle and daub panels as walls on the upper floor. The frame is surrounded with a wall in Stone Masonry with Mud Mortar on the ground floor of the house. Housing Recovery & Reconstruction Platform (HRRP)

16 Housing Recovery & Reconstruction Platform (HRRP)Model details Contd. Rat Trap Bond Masonry Rat-Trap Bond is a modular type of masonry construction in which bricks are laid on edge, thereby creating internal cavity within the wall. The cavity improves the thermal behavior of the wall and significantly reduces the quantity of brick and mortar in the masonry Earth Bag Masonry Earth bag technology is a simple, inexpensive and sustainable method for building structures using ordinary soil found at construction site.The technology consists of Polypropylene bags filled with locally available soil, laid similarly to masonry with barbed wire serving as a mortar and provides tensile as well as shear strength. Housing Recovery & Reconstruction Platform (HRRP)

17 Housing Recovery & Reconstruction Platform (HRRP)Model details Contd. Light Gauge Steel Structure It consisting thin steel sections cladded with light gauge steel panel, Cellular light weight concrete, Cement fiber board, gypsum board or calcium silicate board. Steel Structure It’s structural system consisting of mild steel columns and beams to make steel moment resisting frame system. Both the gravity and lateral load is resisted by moment resisting frame. The floor system is made of profile metal decking system over which the thin layer of RCC is laid. The roofing system consists of MS Steel tubes trusswith CGI Sheet. Housing Recovery & Reconstruction Platform (HRRP)

18 Housing Recovery & Reconstruction Platform (HRRP)Model details Contd. It’s structural system consisting of timber studs (vertical members) and horizontal member load bearing system. The timber planks are used as light weight partition walls. Debris Block Masonry The technology proposes residence construction with block made from stone or brick debris stabilized with cement. Timber Structure Housing Recovery & Reconstruction Platform (HRRP)

19 Review of Typical Non-Compliant RCC StructuresHousing Recovery & Reconstruction Platform (HRRP)

20 1x1 bay, two side eccentric footing Room size (4.5mx4.5m) & (5.5mx3.5m Content (cases:- Cantilever 1.5 m long 1x2 , 1x3, 1x4 bays 1x1 bay, two side eccentric footing Room size (4.5mx4.5m) & (5.5mx3.5m Column at Centre of grid missing Passage 1.5m Footings at differential level Column size 9”x12” Housing Recovery & Reconstruction Platform (HRRP)

21 Detail FEM analysis were done General Note : 11 building covered Each building violets single mandatory rules as mentioned in the tittle Detail FEM analysis were done Linear Dynamic Analysis per NBC 105:1994, were performed Detailing were done as per IS code Design contribution (MoUD-CLPIU, HRRP, Build Change) Housing Recovery & Reconstruction Platform (HRRP)

22 Only architectural dimensions were brought from DL-PIU limitation Only architectural dimensions were brought from DL-PIU No existing structural parameters were available Structural analysis is unique solution and is varies as the architectural dimensions Housing Recovery & Reconstruction Platform (HRRP)

23 Cantilever 1.5m long Housing Recovery & Reconstruction Platform (HRRP)

24 1x2 , 1x3, 1x4 bays Housing Recovery & Reconstruction Platform (HRRP)

25 1x1 bay, two side eccentric footingHousing Recovery & Reconstruction Platform (HRRP)

26 Room size 4.5mx4.5 & 5.5mx3.5m Housing Recovery & Reconstruction Platform (HRRP)

27 Column at Centre of grid missingHousing Recovery & Reconstruction Platform (HRRP)

28 Passage 1.5 m Housing Recovery & Reconstruction Platform (HRRP)

29 Footings at differential levelHousing Recovery & Reconstruction Platform (HRRP)

30 Column size 9”x12” Housing Recovery & Reconstruction Platform (HRRP)

31 Correction and exceptional ManualGovernment of Nepal National Reconstruction Authority Singhadurbar, Kathmandu Introduction to Correction and exceptional Manual

32 BACKGROUND Oct, 2015 Design Catalogue Vol. 1 Feb, 2016Minimum Requirements(MRs) The seismic requirement is NBC105 Then, the MRs were developed. Booklet, Poster, Guidebook for training Dec, 2016 Inspection SOP, Inspection Manual MTOT at Kathmandu was conducted. TOT at district level were also conducted. Slide description: Background Under the housing reconstruction programme, the following guidelines were published by GON. Design catalogue Vol.1, consists of 17 masonry building design along with their construction details Minimum requirements, based upon the seismic design code NB 105 And for inspection of underconstruction or constructed building under Housing reconstruction programme, Inspection SOP was published. Under the housing reconstruction programme, a housing reconstruction is based on construction compliance with the MRs and the inspection checklists. 32

33 Inspection guideline Objective:Inspection SOP was prepared based on the clause 31 of Reconstruction Act,2072. Objective: To make the inspection easy and systematic for safer and strong construction on the basis of Grant Distribution Guidelines 2015. To facilitate all the stakeholders- House owners, beneficiaries, Local bodies, Technical Inspection Team. To create uniformity in the understanding of procedure the grant distribution for construction of safer houses. Slide detail and description: Inspection SOP: In order to reconstruct the buildings that was damaged by earthquake occurred on April 25th 2015, National reconstruction authority has prepared the Inspection sop under Earthquake affected building reconstruction Act, 2072. The building that needs to be strengthen or repair or reconstructed after earthquake needs to have the earthquake resistant feature. To ensure the reconstructed building to be earthquake resistant, the inspection has been carried out into number of phases where each element of building is checked using inspection sheets. These inspection sheets has been introduced in this SOP. It consist of the numbers of inspection forms for various typology of the buildings that needs to be used during inspection of each individual buildings.

34 Inspection guidelinesFirst Inspection Second Inspection Third Inspection Two storey Masonry building First Inspection Second Inspection Third Inspection One storey Masonry building Slide detail and description: Inspection steps: To provide the housing reconstruction grant and to ensure the earthquake resistant elements in newly constructed buildings, the inspection of the building has to be done in number of steps. For the one and two storey building, the first inspection is carried out after the completion of plinth band and third after the completion of building. Whereas the second inspection carried out after the completion of roof band for one storey and after completion of floor band for two storey.

35 Inspection Forms Slide detail and description:Sample form of the inspection.

36 Inspection Forms u_ ;'wf/kl5 3/sf] df]6fdf]6L gSzfMg]kfn ;/sf/ ;+3Lo dfldnf tyf :yfgLo ljsf; dGqfno ========= uf=lj=;=÷g=kf=sf] sfof{no ;'wf/sf] nflu hfgsf/L÷lgb]{zg lbg] kmf/fd ;'wf/÷k|anLs/0f cfb]z tyf lg/LIf0f kmf/fd æcfjf; k'glg{df0f sfo{qmd cGtu{t aGg] 3/x?sf] lgdf{0f lg/LIf0f sfo{ljlwÆ cg'?k ldlt ======================== ut], ================================ sf] lgdf{0ffwLg ejgsf] la:t[t lg/LIf0f kZrft\ lghsf] lgdf{0ffwLg ejg n] 8L=kL=;L= ÷=====================tNNff ÷5fgf tx ;Ddsf] Go"gtd cfjZostf k"/f gu/]sf] kfOPsf] x'gfn] of] ;'wf/sf] nflu of] lgb]{zgul/Psf] 5 . nfeu|fxL 3/wgL sf] gfd============================== ;Demf}tf qm= ; ============================================ gful/stf k|df0fkq gDa/=========================================== s_ 3/sf] hf“rsf] nflu lbOPsf] cfj]bgdf ePsf] ljj/0f   :jLs[t gSzf–l8hfOg dWo]sf] eP l8hfOg g+=M =======================================  cGo cfˆg} gSzf l8hfOgsf] xsdf uf/f]÷lkn/sf] lsl;d g+=M ========================================================= tnf÷5fgfsf] lsl;d g+=M ========================================================= cGoM ==================================================================================== v_ ;'wf/ jf k|jnLs/0fsf] k|fljlws ljj/0f u_ ;'wf/kl5 3/sf] df]6fdf]6L gSzfM -3_ b]lvPsf k|fljlws ljj/0fx?sf] ljZn]if0f u/L lgdf{0ffwLg 3/ yk lgdf{0fsf] nflu :jLsl[t lbg' pko'Qm b]lvG5 k|fljlws lg/LIf0faf6 kf; ePsf]n] yk lgdf{0f sfo{ cufl8 a9fpgsf] nflu tyf  bf]>f]÷t]>f]] ls:tf e"QmfgLsf] nflu k|dfl0ft u/LPsf] 5 . ;'wf/÷k|jnLs/0f ug'{ kg]{ b]lvPsf]n] cg';"rL – ^ cg';f/ k'gM;'wf/÷k|anLs/0f cfb]z lbOPsf] 5 . -ª_ hfFrdf b]lvPsf k|ljlws ljj/0fx? 7Ls ;fFrf] 5g\ egL :jLsf/ ug]{ 3/wgL÷nfeu|fxL jf k|ltlglwsf] gfd, y/ ==================x:tfIf/====================== k|ltlglwsf] 3/wgL÷nfeu|fxL;+usf] gftf =====================ldlt ====================== -r_ k|fljlws hfFrsf] ljj/0f :jLs[ltsf] nflu k]z ug]{M ============================== MoUD-DLPIUsf] ;'k/Lj]IfsM ====================================== gfdM ========================================================kbM ====================================== x:tfIf/M ===================================================ldltM =================================== -5_k|fljlws hfFrsf] ljj/0f :jLs[t ug]{ MoUD-DLPIU sf] ;'k/Lj]If0f Ol~hlgo/M============================================ gfdM =========================================================kbM ====================================== x:tfIf/M ====================================================ldltM =================================== Slide detail and description: Sample form of the correction order and re inspection. k|fljlws lg/LIf0fkl5 ;'wf/ jf k|jnLs/0fsf] nflu lbOPsf] lgb]{zg ;'wf/kl5sf] cj:yf

37 Non-compliant Issues Slide detail and description:Span of wall is more than 4.5m

38 Non-compliant Issues Slide detail and description:T- shape

39 Non-compliant Issues Slide detail and description:Mix use of Building materials

40 Absence of Vertical memberNon-compliant Issues Slide detail and description: Non compliant issues: Absence of vertical member Absence of Vertical member

41 Non-compliant Issues Slide detail and description:Location of vertical band: Vertical member provided at different locations

42 Non-compliant Issues Slide detail and description:Non-Compliant: Sill band is not below the opening/ No plinth Band

43 Non-compliant Issues Slide detail and description:No Plinth band Height of Lintel band(Door and window level) Vertical Reinforcement Position of Opening??

44 Non-compliant Issues Slide detail and description:Compliant?? Brick work and Band is ok but Check the Vertical Reinforcement material. Is it according to the specification on Minimum requirement? Check also the level of door and window. Also, it we put vertical reinforcement at corner or at connection of walls, the thickness of wall should be more than 230 mm (9 inch). Copla should be there. So it cannot be compliant.

45 Non-compliant Issues Slide detail and description:One storey and attic constructed by stone masonry in mud mortar.

46 Non-compliant Issues Non compliant issues: Number of storey.Absence of band Construction of load bearing wall in verandah

47 Non-compliant Issues Slide detail and description:Large openings

48 Non-compliant Issues Slide detail and description:Hybrid structure

49 BACKGROUND May, 2017 Correction / Exception ManualMany houses have been found during inspection to be non-compliant with MRs. In order to bring these houses to compliance, corrective measures are required. Slide description: Many houses have been found during inspection to be non-compliant with MRs. Some houses were found to be structurally safe but the detail were not covered by MRs. In order to make these houses compliance, corrective measures are required.

50 BACKGROUND This manual has been developed to support engineers responsible for the compliance inspection process. The engineers will use this manual to provide advice and guidance to households for the implementation of required corrective measures. Home owners will need to complete these corrective measures in order to be eligible to receive the subsequent tranches of the housing reconstruction grant. Slide description: This manual has been developed to support engineers responsible for the compliance inspection process. The engineers will use this manual to provide advice and guidance to households for the implementation of required corrective measures. Home owners will need to complete these corrective measures in order to be eligible to receive the subsequent tranches of the housing reconstruction grant.

51 Correction/ Exception ManualOBJECTIVES To introduce the exceptional cases, other than mentioned in MRs. To provide correction measures along with their step by step procedures. To support households to overcome non-compliance issues and secure approval to receive tranches. To support engineers working for housing reconstruction programe. Slide detail and description: Correctional manuals are prepared for supporting those houses which are non compliant to the minimum requirements.

52 Correction/ Exception ManualSCOPE Applicability This manual is applicable within certain limitations as guided by NBC 202 and NBC 203, which are based on NBC 105 seismic design code. Limitations This corrections / exceptions manual covers only load bearing masonry buildings under the GoN housing reconstruction programme. The corrective measures are only for buildings that are newly constructed, or under construction. Slide detail and description: Correctional manuals are prepared for supporting those houses which are non compliant to the minimum requirements. *Participants read Scope in P2, Applicability and limitations. Applicability: Correction and exception Manual has been drafted to support the non compliant issues to the building which was constructed under housing reconstruction. The measures that has been provided is based on NBC 105, seismic design code and ensure the structural safety. These measures are applicable only for masonry residential buildings. The corrective and exceptional measures that has been introduced in this manual comes after the several vigorous discussion with the technical expert team. All the measures are ready to use design which was evolved after structural analysis. Some measures mentioned in this manual are difficult to carry out in the field due to lack of proper skill and inappropriate workmanship hence, some corrective measures introduced in this manual are made only for advisory provision. eg Jacketing. This corrections/ exception manual covers only load bearing masonry building under GON housing reconstruction programme. The corrective measures are only for building that are newly constructed or under construction. Relevant for residential buildings and fall under category ‘C’ and ‘D’. For the buildings which falls under the category ‘A’ and ‘B’, individual structural analysis is required.

53 Correction/ Exception ManualCONTENTS PART-A: Exception / Correction PART-B: Mitigation Measures ANNEX Slide detail and description: Contents are three sessions. Part-A: Exception and Correction, Part-B: Mitigation Measures and ANNEX. Part-A: Exception and Correction is following items of minimum requirements. Part-B: : Mitigation Measures is detail of correction measures, and step by step construction procedure. And ANNEX is samples of correction measures.

54 Correction/ Exception ManualException is the cases of the buildings that do not comply with MRs but are structurally safe as per NBC 105 including the cases mentioned in NBC. The exceptional cases were drafted by the NRA technical standardization committee on the basis of seismic requirements following NBC 105. Hence, when all required exception measures have been completed the building can be approved for the subsequent tranche of the housing reconstruction grant. *Participants read definition of exception in P1. Slide detail and description: Exception is the cases of the buildings that do not comply with MRs but are structurally safe as per NBC 105 including the cases mentioned in NBC. The exceptional cases were drafted by the NRA technical standardization committee on the basis of seismic requirements following NBC 105. Hence, when all required exception measures have been completed the building can be approved for the subsequent tranche of the housing reconstruction grant.

55 Correction/ Exception ManualCorrection is the corrective measures required to make newly constructed or under construction buildings compliant with the seismic resistance standard as per NBC 105. The appropriate corrective measures can be carried out on any individual building which is missing earthquake resistant elements as per MRs and at any stage of construction. These measures were drafted by the NRA technical standardization committee   on the basis of seismic requirements following NBC 105. Hence, when all required corrective measures have been completed the building can be approved for the subsequent tranche of the housing reconstruction grant. *Participants read definition of correction in P1. Slide detail and description: Correction: Corrective measured are introduced to make the non compliant cases into compliant along with satisfying the seismic code 105. Its main objective is to guide the engineers who are involved in reconstruction process and help them to fill up the correction order form. Depending upon the non compliant cases the engineers can give the correction orders with reference to this correction manual. The building can be considered as eligible for subsidy if all the corrective measures ordered by the engineers are carried out. The correction mentioned in this manuals are ready to use design and can be carried out at any phase of under constructed building.

56 Correction/ Exception ManualMinimum Requirements Exception Problem Solution Common Defects Correction Slide detail and description: Part-A of manual consists of Exception and Correction This consists of Minimum Requirements Problem Common Defects Exception Solution Correction

57 Correction/ Exception ManualProblem: Problem Absence of vertical reinforcement Correction Slide detail and description: Examples 1: If the vertical reinforcement in the building are missing then the addition of vertical reinforcement either from outside or inside of the buildings can be adopted. Depending upon the availability of the materials alternative materials of reinforcement can be introduced such as pp band or GI wire mesh. The detail description of the design and construction procedure is provided in the next part i.e. Part B (Mitigation measures) of the correction manual. Provide vertical reinforcement Provide bandage

58 Correction/ Exception ManualAdding Wooden element Adding RC Roof Band Adding gabion wire mesh Non complaint Correction Slide detail and description: Example 2: According to the minimum requirement the allowable number of storey for mud masonry building with wooden band is limited to one storey whereas in real scenario people wants to construct an additional attic. These sort of non complaint issues can be corrected by providing RC roof band instead of wooden roof band. Alternatively, gabion wire mesh can be provided from lintel to roof level in both side of wall. The wall above the lintel band can be strengthen by providing vertical wooden member at the suggested interval in both direction of the wall. The two wooden member shall be connected with the connector such as gabion wire. Depending upon the availability of the materials the suitable corrective measures can be adopted. Compliant Number of Storey

59 Correction/ Exception ManualProblem: Problem Mix use of materials Correction Mix use of stone and brick in the wall along the same direction. Slide detail and description: Example 3: Mix used of the two materials can be found same building and along the same direction of the wall. Due to the improper connection between these two materials, the building is vulnerable to earthquake. Hence as an corrective measures Jacketing has been introduced with some limitations. The building shall have all the earthquake resistant elements to use jacketing as corrective measures. Provide jacketing Limitation: The masonry should have all the earthquake resistant features.

60 Correction/ Exception ManualCases of the buildings that do not comply with MRs but are structurally safe as per NBC 105 including the cases mentioned in NBC. MINIMUM REQUIREMENT: Place vertical member at all corners, junctions of walls and adjacent to all doors and windows. Steel or timber can be used as vertical member. EXCEPTION: Slide detail and description: Exceptions: Exceptional cases are those cases which satisfy the seismic design code 105 but are not mentioned in minimum requirements. If the building falls under the exceptional cases it can be consider as eligible for receiving the subsidy and are considered as compliant buildings. If the openings are provisioned with wooden double framed box and properly connected to horizontal bands then vertical members around the openings as well as can be ignored. Wooden double framed box

61 Correction/ Exception ManualMinimum Requirements: Foundation Sub-Category  Description Type of soil One storey Two storey Depth of foundation below GL SMM All > 750mm - BMM SMC > 800mm > 900mm BMC Base width Soft soil Medium soil Hard soil > 650mm > 550mm Not recommended > 600mm Exception E1. Foundations size can be variable for hard rock bed. Here, proper levelling of foundation is required with proper anchorage of vertical element to the rock. Slide detail and description: Exception: Example 1: The size of the foundation is governed by the type of masonry, number of storey and the typology of the soil. The minimum requirement set the limitation for the size of the foundation. Most of the hilly areas consist of rock bed where it is impossible to go upto the designated depth guided by minimum requirement. Hence, as an exception the depth of the foundation can be variable. But the bottom level of the foundation must have proper level and the vertical reinforcement shall be properly anchored to the rock.

62 Correction/ Exception ManualMinimum Requirements: Doors/Windows Category  Sub-category   Description Doors / windows. General Keep lintel level same for all doors and windows. Openings are to be located away from inside corners by a clear distance equal to at least 1/4 of the height of the opening, but not less than 600 mm. Total length SMM/BMM The total length of openings in a wall is not to exceed 30 % of the length of the wall between consecutive cross-walls in single-storey construction. SMC/BMC The total length of openings in a wall is not to exceed 50 % of the length of the wall between consecutive cross-walls in single-storey construction, 42 % in two-storey construction. Distance The horizontal distance between two openings is to be not less than one half of the height of the shorter opening, but not less than 600 mm. Slide detail and description: Minimum requirement for doors and windows.

63 Correction/ Exception ManualDalan < 2 t Exception wooden double framed window If wooden double framed door and window with appropriate connection with horizontal band are provided, position and size of openings can be variable. Slide detail and description: Exception Example 2: The main aim of providing the vertical band is to create the box effect around the opening so that there is less chance of crack along those openings. Since the double frame windows/Doors also helps in creating the box effect the vertical band can be ignored. Similarly, these frame shall be properly connected with the horizontal band.

64 Correction/ Exception ManualMitigation measures: The Mitigation Measures consists of step by step procedure for implementing the correction. Depending upon the availability of materials and workmanship suitable Mitigation Measures can be adopted. Slide detail and description: Mitigation measures : It consist of step by step construction procedure of correcting the individual missing items of earthquake resistant elements. All the design mentioned in this section are ready to use design. The detail description of the work need to be carried out to implement the corrective measures has been described along with the construction images. Depending upon the non-compliant cases, site condition, workmanship and availability of the materials suitable mitigation measures can be adopted. Example: Addition of RC Horizontal band: Description of work: Surface preparation Placing of reinforcement Make holes for anchorage - For through GI bar - For anchorage bar Anchor reinforcing bar mesh Application of Micro concrete. Curing of concrete

65 Correction/ Exception Manual2-10mm Φ bars Mitigation measures: Addition of bandages on outer faces of wall when plinth/ sill/ lintel/ roof bands are missing Slide detail and description: Mitigation measures: The detail specification of the materials has also been described in the mitigation measures. M15 Concrete ( 1 part cement 2 part sand 4 part 10mm down aggregate) 4.75mm Φ mm c/c 2-10mm Φ bars 50 mm 25 mm

66 Correction/ Exception ManualConstruction Procedure: 1 2 3 Surface Preparation Placing of reinforcement Making holes for anchorage 4 5 6 Slide detail and description: The illustrative construction procedure is also provided in the mitigation measures. It will provide the vision of the construction steps to all the technical and non technical people. Anchor reinforcing bar mesh Application of micro concrete Curing Remove stone from one side of wall

67 Correction/ Exception ManualANNEX I Consist of six corrective measures using different construction materials. Corrective measures can be adopted according to the locally available materials. Roof band Lintel band Stitch band Sill band Connector Vertical post Applicability: When all the earthquake resistant elements are missing in the building Slide detail and description: In order to address the building that doesn’t comply with any of the earthquake resistant features, the corrective measures are provided in the separate section of the Manual i.e. Annex-I It consist of providing the earthquake resistant element externally The detail specification of the different materials used for as eq resistant element is provided. Depending upon the availability of the materials and the workmanship suitable corrective measures can be adopted. After adopting all the mentioned corrective measures the building can be approved for the subsequent tranche of the housing reconstruction grant. Cover Plinth band with stabilized mud mortar

68 Correction/ Exception ManualANNEX II Applicability: Hybrid structures Slide detail and description: Till date the detail requirement for the hybrid structure has not been drafted but according to the real scenario of construction many buildings has been constructed with load bearing masonry at the ground floor and light weight structure in the first floor. So to address these issues the connection details of these light weight materials has been mentioned in this section i.e. Annex II

69 UPDATED INSPECTION FORM ON THE BASIS OF CORRECTION AND EXCEPTION MANUAL

70 Housing Recovery & Reconstruction Platform (HRRP)

71 Housing Recovery & Reconstruction Platform (HRRP)

72 Housing Recovery & Reconstruction Platform (HRRP)

73 Housinlatform (HRRP)

74 Thank You!!! Housing Recovery & Reconstruction Platform (HRRP)