Quick Build Prefab Home for Lower Income Market (KXD-SSB99)

• Customization: Available
• Material: Sandwich Panel
• Usage: Dormitories, Temporary Offices
• Model NO.: KXD-SSB99
• Certification: ISO, CE, SGS, BV
• Customized: Customized
• Size: According to Customers′ Requirement
• Color Reference: Ral
• Member of Engineering Team: 20
• Quality Control: Daily
• Life Cycle: 30 Years
• Construction Period: 4 Weeks
• Customer Service: Aftersale Service
• Project Management: Turnkey Solution
• Engineering Tools: Autocad
• Type: H-Section Steel
• Application: Steel Workshop, Steel Structure Platform
• Warranty: 30 Year Limited Warranty
• Transport Package: Flat Pack Package
• Specification: ISO
• Trademark: KXD, Carbon Structural Steel
• Origin: China
• HS Code: 9406900090
• Production Capacity: 2000 Ton/Per Month

Product Description

Product Name: Quick Build Prefab Home for Lower Income Market(KXD-SSB99)

I.Quick Build Prefabricated/Prefab Home is a kind of environmental friendly, economical mobile house that used sandwich panels as wallboard, combined by standard module, and the structural steel members connected by bolts.
Prefab home is widely using in different industry: the temporary accommodation house for road, railway and building construction site, etc.Also can be as temporary office, meeting room , headquarters , public accommodation , and temporary store , school,  hospital , parking lots, show rooms, electric control house , gas station etc. 


II.Advantages of Prefabricated/Prefab Home
1. Convenient to assemble and disassemble, can be used repeatedly.
2. Practical, good space utilization and high price performance.
3. Almost dry construction which is environmental friendly.
4. Light and reliable, the steel structure is strong and firm.
5. Long life span capacity which could be above 15 years.
6.Waterproof, fireproof, heatproof, windproof, soundproof 

It just need simple tools to assemble. Each worker can assemble 20~30 square meters every day. 6 worker can finish 300sqm prefab house in 2 days.

Beautiful decoration: The prefab house is beautiful and grace, have bright and bland color, flat and neat board, with good decoration effect.


III.Material List of Standard Prefab K House/Home (1 Floor)

Seeking for a solution to your construction employee's official request?How about considering modular house? For any construction enterprise,it is a common thing to deploy the installation workers to local construction site to fulfill their duties.However,the worker's safety and well-being must come first at any circumstances which is foundamentally provide them satified accommodation,catering and leasurement options at spare time.On the other hand,considering the high requirements of mobility and easy-to-assemble for the auxiliary house/building.modular house is definitely a reliable choice. You may wonder what is exactly the define of a modular house system.To start with,Modular House is a term used to describe the use of factory-produced pre-engineered building units that are delivered to site in Modules. The modular units may form complete rooms, or parts of rooms. Modular houses are generally made into six sided boxes constructed in a factory, then delivered to site and using a crane, the modules are set onto the building's foundation and joined together to make a single building. The modules can be placed side-by-side, end-to-end, or stacked, allowing a wide variety of configurations and styles in the building layout.  Till now,you may get a little hint of what a modular house is.But the truth is there are still many things about modualr house to explore.So how about getting to read the following informations about KXD's unique modular house system?I'm sure that you will know deeper about the modular house system after reading the informations.   General The modular unit or container is designed as a light solid construction consisting of floor and roof frames and corner profiles. The system enables compounding of individual containers in longitudinal and transverse directions without limits. It also enables compounding of containers in 2 floors in height (ground floor + first floor), or in 3 floors in height for warehousing of these containers (ground floor + 2 floor). Wainscots of the container are made of light insulation panels and offer pleasant climate in the interior due to their building and physical properties. Dimensions and Tare (ISO Standard 1161) External length 20'/ (inner length) 20′: 6.055m/(5.851m) External width/ (inner width): 2.435m/(2.231m) External height/inner height: 2.790m/(2.510m) Tare: 1950 Kg (1)Steel Framework Material::cold formed steel profiles in a thickness of 3 to 4mm (bottom rails).   Surface working::shot blasting, epoxy ground coat in a thickness of 30 μm, final vinyl acrylic coat in a thickness of 60-70 μm.   Fittings:8 corner fittings (dimensions according to ISO standard 1161), rainwater pipe in the roof framework, plate thickness of 10mm excluding top corner fittings of the top kit of each bundle (20mm thickness)   Forklift openings:openings for fork-lift pockets in the floor framework, dim 88*250mm in a distance of 1700 mm (2)Floor Composition External wainscot:flat galvanized steel sheet metal in a thickness of 0.5mm.   Insulation filling: noncombustible mineral wool in a thickness of 100 mm among hollow steel transverse supports. Mineral wool density:50 Kg/m^3   Steam blockade: PE foil in a thickness of 80 μm   Cement board: CCA boards (Cellulose Fiber Cement Board, Autoclaved) in a thickness of 18 mm Density: 1500Kg/ m^3   Reaction to Fire Classification:A1 certified ISO EN 13501   PVC flooring covering in a thickness of 1.5mm   Permitted loading: 4 .5 KN/m2 or 6 KN/m2 (reinforced under-structure) K value: 0.45 W/ m2K   R value (Thermal Resistance) = 2.2 m2K/W (3)Ceiling Composition (50mm sandwich mineral wool panel) External wainscot: 1.6 mm thick corrugated "ISO" roof,CORTEN made,and shot blasted&painted. Steam blockade:PE foil in a thickness of 80μm Insulation filling:noncombustible mineral wool in a thickness of 50 mm among 30X50X2 mm steel square bars. Mineral wool density: 50 Kg/ m3 Ceiling made of 50 mm thick mineral wool sandwich panels screwed to the steel beams of the roof frame. Sandwich panel composition: Meteor water outlet: 4 each of PVC rainwater pipes, diameter 50mm in corner pillars K value: 0.45 W/ m^2K R value (Thermal Resistance) = 2.2 m^2K/W Galvanized and painted steel sheet metal on both sides. Steel thickness: 0.5mm, white color   Insulation filling: mineral wool in a thickness of 60mm, density 120 Kg/m3   Permitted loading (standard roof) : 2.1 KN/m2 (4)Facade Walls Sandwich mineral wool Side panels' width:1140mm; total panel thickness: 60mm. Five panels fit into the long side and two panels fit into the short side of container and they are fully interchangeable Composition: External wainscot: Galvanized and painted steel sheet metal in a thickness of 0.5mm, white color Insulation filling: Mineral wool in a thickness of 60mm Inner wainscot: Galvanized and painted steel sheet metal in a thickness of 0.5mm, white color. Permitted loading: 100 kg/m^2 Mineral wool density: 120 Kg/m^3 K value: 0.71 W/ m2K Fire rating: 36 minutes according to GB 12955-91 and 20 minutes according to BS 476 (5)Doors External Aluminum door. Single fold, 40mm thick, made of: a frame in pre painted aluminum hot galvanized and pre painted steel sheets (inside and outside) insulated with PL (polystyrene) Net opening dimensions: 820 x 1985 mm; furnished with a handle lock with 3 keys. Composition: External frame: galvanized and painted steel profiles, thickness 0.7 mm External and internal wainscot: galvanized and painted steel sheet metal in a thickness of 0.7mm. Equipped with 3 hinges, lock and anti-burglary flange Insulation filling: non-combustible mineral wool in a thickness of 50mm. Mineral wool density: 60 Kg/m3 Windows Made of PVC, white color, with dimensions 800 to 900 mm× 1100 to 1200mm, glazed with double layer glass in a thickness of 4/15/4mm, with "tilt & swing" Mechanism with aluminum made rolling shutters (5)Electrical Installations Standard: UK Specification Voltage: 220 V, 50 Hz single phase Network connections: suitable-connection plug/socket, 3-5 poles 32 A +, 220V ~ mounted on the top frame in upper corners of a shorter side wall Inner distribution system: cables of suitable dimensions (6, 2.5, 1.5 mm2 for 220 voltage, flush-mounted. Protection: protective current switch (40 A +/2E/4E-0,03A), automatic fuses (C-characteristics) of suitable power (6A, 10A, 16A, 20A) Earthing: galvanized connector with a steel plate of dimensions 30x80mm welded on the bottom frame Fittings: Electric distribution box - 1×40A+/2E/4E-0.03A (protective current switch), 1×10A & 2×16A as standard lay out (automatic fuses) Double fluorescent lights 2×36W 220V- 2 each Philips IP 65 rated Option: "PRC" neon lights IP 65 rated Low level flush-mounted illuminated double sockets 220 V/110 V - 3 each Low level flush mounted illuminated double socket 220V/110V with double SUB port - 1 each Flush-mounted switches 220 V/110 V - 1 each (6)Possibilities of Container Mounting On a flat solid surface (asphalt, concrete,) On point foundations (concrete cubes, dimensions 30/30/30cm, 6 pc/20' container) On band foundations (concrete band, 30cm wide, on the container circumference) Certification: Dimensions, weight, payload and stacking are RINA certified. Certificates available for components. Delivery: Containers can be delivered assembled or individually - in kits 648 mm high.4 kits can be bundled in packages 2591 mm high (ISO dimensions) Remark: Rights to technical changes are reserved.

IV.Our Services
 
If You Need: prefabricated kit house; prefab kit house.steel structure homes.steel frame house
 
Only Need You To Provide Us:house area,how many floor and bedrooms,luxury or normally,or low cost configuation.
 
We Can Provide You:villa;bungalw;low cost house;granny flat;apartment etc.many style house turnkey solution from concept-design+cost estimation+detail+fabrication+supply/manufacture+Installation

V.Packaging & Shipping
 
prefabricated House's packing:well packed export quality package ,shipped by 40hq. 


VI.KXD's Prefab House Design Package
KXD'S 10-20 engineering team enables us one of distinguished quality that we could design and engineer modularized prefabricated house which shortens our potential buyers decision-making time and finalize the deal in the possbily quickest time

VII.Company Information
Qingdao KXD Steel Structure Co., Ltd. with registered capital of RMB 100 million, we are professionally engaged in steel structure design, manufacture and installation. We have exported to more than 30 countries, with more than 200, 000 tons.
Our strength & brief as below:
1. Founded in 2004, with 300, 000 SQM production area.
2. Products Scope:
Steel Structure for industrial and power fields, such as power plant, steel mill, solar industry, hydroelectric plant, petrochemical fields, oil and gas pipeline, etc.
Steel Structure for civil fields, like high-rise building, heavy/light steel structure, workshop& warehouse, etc.
Steel structure for poultry house: chicken house and  pig house.etc.
Prefabricated house and container house
EPS/ Glass wool /Rock wool sandwich panels
Mechanical components
3. China national high-tech company, with 120 engineers and 1260 staff in total.
4. Service cover design, manufacture and installation.
5. The strength of parent firm (Canada listed company with total asset 4 billion, 3600 employees).
6. Biggest steel structure manufacturer in northern China, with annual output 200, 000 tons.
7. Got national steel structure 1st grade qualification on production, construction and contract.
8. Got the China National Construction Steel Structure Gold Award for several project, which is the highest award in this felds.
9. Got ISO9000, ISO14000, ISO18000, China national well-known brand.
10. Exported to more than 30 countries, with more than 200, 000 tons.

 

Item	Flat loading type	Vertical loading type
Exterior size	5800*2300*2570	6055*2435*2620
Net height	mid configuration2280/high configuration2230	mid configuration2280/high configuration2230
Ground live load	1.5 KN/m²	1.5 KN/m²
Roof live load	0.5KN/m²	0.5KN/m²
Wind load	0.5KN/m²	0.5KN/m²
Anti-seismic	8 degree	8 degree
Max.floors	3	3
Electrical system	concealed installation	concealed installation
Downpipe	free-falling	free-falling
Transportation	FCL/flat pack	FCL/flat pack
Extension	4-side wall panel removal to form multi-bay units/ok	4-side wall panel removal to form multi-bay units ok

KXD's H Section Manufacturing Equipment and Process
Steel plate cutting→H section assembly→Automatic welding-H section strengthening→Assembly→Manual welding→Shot blasting-Painting→
Storage

I.Steel plate cutting
The H section  steel plate should be checked again by the factory and shall be applied under the condition of up to design and specified requirements after checking. Steel plate cutting should be aimed at quality guarantee and material saving. For each process like plate cutting,H type assembly, components assembly and pre-assembly should be carried out by profession setting-out worker precisely on processing surface and assembly sample plates.To guarantee the accuracy of the components'geometrical dimension,tolerance of form and position, angle and contact surface,inspection is necessary by inspector after setting out.In order to ensure the cutting quality,the surface of the ultra-thick plate is subjected to the surface carburizing hardness test before cutting.The CNC cutting equipment is preferred for cutting.The high purity 98.0% acrylic gas and 99.99% liquid oxygen gas are used to guarantee the smoothness and flatness of the cutting surface without notches and slags.The groove is cut by a special imported cutting machine.

Equipment name: Portable CNC Fire-cutting machine
Model No.: CNCDG-1530
Application feature: steel plate cutting(5-100mm plate cutting thickness), beveling of the edge.Advantageous in small equipment and easy-to-move. Mainly for cutting regular and irregular small components and beveling of the plate.

Equipment name:Straight flame cutting machine
Model No.:DZCG-4000A
Application feature:steel plate cutting(5-100mm plate cutting thickness),Y flange plate, web plate cutting, effective cutting width: 3200mm

Equipment name:CNC cutting machine
Model No.:CNC-4000C
Application feature:steel plate cutting(5-100mm plate cutting thickness),Y flange plate,web plate and irregular component cutting,effective cutting width: 3200mm

Equipment name: Radial drilling machine
Model No.:Z3050*16/1 
Application feature:Maximum drilling diameter φ50mm,Mainly for processing of component bolt-connection holes

Equipment name:Puncher machine
Model No.:JH21-400
Application feature:Maximum stamping pressure-400 ton,Mainly for plate punching, blanking, bending and shallow stretching

Equipment name:Shearing machine 
Model No.:Q11Y-25*2500 
Application feature:cutting width 2500mm and cutting thickness 3-25mm

II.H section steel assembly
The assembly process is set up on the imported H section production line.4 hydraulic positioning system press firmly against between the upper/lower flange and web plates in position. The adjust the parallelism of the flange plates and perpendicularity between flange and web plates and get them fixed after. The fixing welding should adopt C02 gas shielded welding.

Equipment name:H section steel assembly machine
Model No.:Z20B
Application feature:mainly for H type assembly u,flange width 150-800mm,web height 160-2000 mm

III.Automatic welding
The H section steel members will be hoisted into the gantry-type submerged arc automatic welding machine for welding.The welding process should be carried out in accordance with specified welding sequence and regulation parameters.Preheating, which uses the electrical heaters, is necessary for the ultra-thick plates of components.The set temperature shall be determined based on the specified one.Please see factory welding process documents for detail.

Equipment name: Gantry-type submerged arc automatic welding machine  
Model No.:LHA5ZB
Application feature:Mainly for assembly welding of H section steel whose maximum cross section up to 800mm×2000mm

IV.H section steel strengthening machine
H section steel strengthening process: Correction of flange flatness by using H section steel flange plate strengthening machine.Flame-correct the perpendicularity between the H section flange and web plate under special circumstances and then correct the side bending of the H section steel. The flame temperature should be controlled under the range of 600~800ºC.

Equipment name:H section steel strengthening machine  
Model No.:YTJ60B
Application feature:Mainly for correcting the deformation of I beam or H section steel flange plate during welding process,flange width 200-1000mm, flange thickness≤60mm, web height≥350mm

Equipment name:H section flange strengthening machine
Model No.: HYJ-800
Application feature:Mainly for correcting the deformation of I beam or H section steel flange plate during welding process,flange width 160-800mm,flange thickness≤40mm,web height≥160mm

V.Simulated assembly of component
1.Get familiar with component shop drawing and technical requirements.
2.The model components need to re-check by related department after making and finalizing of the model components and then to assemble.
3.Accurate mark-up
4.Inspect the component after first assembly.For multi-group components, pre-assembly for the first group and then batch assembly after qualified test.

VI.Manual welding

VII.Shot blasting
Equipment name:10-ramming heads shot blasting machine
Model No.:QH1525    
Application feature:Mainly for shot blasting of section steels including H section steel, welded members and steel plate,10 ramming head; Machine entry size:1500Í2500 and member at 1200Í2000 size could pass the machine at once; up to Sa2.5 Grade.

VIII.Painting
The surface of the members should be in even,flat, glossy and full painting without manifest of cracking, peeling and pin holing.The color and coating thickness should also meet design requirements.If there is no certain requirements,the following standards should be followed:thickness is 150μm indoor while 125μm outdoor.The allowable deviation is -25μm.The allowable deviation of dry paint film thickness for each-time painting
Two coats of primer:thickness being40±5μm; Two coats of finish paint:thickness being 60±5μm.

Equipment name:Airless sprayer     
Model No.:CPQ9CA
Application feature: Derived capacity:56 L/min,Air consumption:50~1200 L/min.Mainly for surface paint of structural members, Pressure ration: 32:1

Process, fabrication and quality control standard on welding groove/beveling of steel structure
1. Purpose
To ensure the welding quality, meeting up the technical requirements of welded members and improve the standardization of our fabrication, we specially formulate this regulation.
2. Application scope
This manual apply for the design, fabricate and inspection of groove joint in terms of manual arc welding, CO2 arch welding, mixed gas arch welding, submerged arc welding and electroslag welding.
3. Design of welding groove
3.1 Key points on design welding groove:
In order to obtain quality groove, it is necessary to choose appropriate form of groove. The option of groove mainly depends on the thickness of base metal, welding method and craftsmanship requirements.The followings are the factors we need to consider:

1. minimize the amount of filler metal
2. easy for beveling
3. in convenience for welding operation and slag removal
4. After welding stress and deformation should be as small as possible

3.2 Groove direction:
We will consider the following factors for the groove direction:
A)in favor of welding process and removing slag and leave enough space for welding process on the fusion face
B)minimize the times of flip-flop during welding
C)way of fit-up in actual welding

3.3. Regulation on groove direction of members:

3.3.1 Butt welding on H section rafter/column (when CJP-complete joint penetration and single side fusion is required)
1) When there is no welding backing, the groove orientation on flange plates should be same and falls on the direction in favor of welding on web plats(same rules apply for the PJP situation). Please refer to illustration 1

2)When there is welding backing, we require the groove direction being outward for the flange plates(opposite direction for web plates) and still falls on the direction in favor of welding on web plates. Please refer to illustration 2
3)Butt-welding on construction site:we require all the grooves should be bevelled on the upper rafter/column when it comes to bolt connection for web plates(see illustration 3). For the scenario of welding on web plates, please refer to the illustration 4.
3.3.2 Box column(groove on itself).See illustration 5
4. Welding groove form
4.1. Mark on form and size of welding joint groove:
Example: Shielded metal arch welding, complete joint penetration, butt welding, I shape groove, welding backing and single side weld would be marked MC-BI-BS1
4.2. For the mark of welding method and penetration type, please see the following chart 1.
Chart 1 Mark on welding method and penetration type

Mark	Welding method	Penetration type
MC	Shielded metal arch welding	CJP-complete joint penetration
MP		PJP-partial joint penetration
GC	Shielded arch welding Self-shielded arc welding	CJP-complete joint penetration
GP		PJP-partial joint penetration
SC	Submerged arc welding	CJP-complete joint penetration
SP		PJP-partial joint penetration
SL	Electroslag welding

 4.3. For the mark of single, double side welding and backing material type, please see the following chart 2
Chart 2 Single/double side welding and backing material type mark

Backing material type		Single/double side welding
Mark	Material	Mark	Single/double side welding
BS	Metal backing	1	Single side welding
BF	Other backing	2	Double side welding

4.4. Mark on each part size of groove, see chart 3.
Chart 3 Size mark on groove

Mark	Size of each part on groove
t	Thickness of welding plate(mm)
b	Groove root gap or gap between two members(mm)
h	Groove depth(mm)
p	Groove roof face(mm)
α	Groove angle(º)

Applicable Codes

LATEST INTERNATIONAL CODES COMPLIANCE
A. (GB50009-2012): Load code for the design of building structures
Loads on all buildings are applied in accordance with:
2012 edition of the Load code for the design of building structures

B. (MOHURD): Ministry of Housing and Urban-Rural Development of the People's Republic of  China

Manufacturing and Erection tolerances are applied as per:
GB50205-2001 edition Code for acceptance of construction quality of steel structures

C.(MOHURD): Ministry of Housing and Urban-Rural Development of the People's Republic of  ChinaHot rolled sections and built up sections are designed in accordance with:
GB50017-2017 Code for design of steel structure

D. CISA - China Iron & Steel Association - Latest Edition
Cold formed members are designed in accordance with:
GB50018-2002 Technical code of cold-formed thin wall steel structures


E. (MOHURD): Ministry of Housing and Urban-Rural Development of the People's Republic of  China

Welding is applied in accordance with:
JGJ81-2002 Technical specification for Welding of steel structure of building

F. Surface treatments are applied in accordance with:
GB/T 8923.1 Preparation of steel substrates before application of paints and related products-Visual assessment of surface cleanliness-Part 1: Rust grades and preparation grade of uncoated steel substrates and of steel substrates after overall removal of previous coatings

STRICT DEFLECTION CRITERIA
 

Deflection	Type of structural members		Deflection Limitation
Vertical Deflection	Portal frame rafter	Only support corrugated steel sheets roof and cold-formed section purlins	L/180
		If there is ceiling system	L/240
		If there is top running crane	L/400
	Mezzanine floor	Main beam	L/400
		Secondary beam	L/250
	Purlins	Only support corrugated steel sheets roof	L/150
		If there is ceiling system	L/240
	Corrugated roof steel sheet		L/150
Lateral Deflection	Wall panel		L/100
	Wind columns or wind truss structures		L/250
	Wall beam	Only support corrugated steel sheet wall	L/100
		Support masonry wall	L/180 and ≤50mm

  Material Specifications

The material standards for which the building components have been designed as per specifications.

STANDARD MATERIAL SPECIFICATIONS

Material Specifications
No	Components		Specifications	Minimum yield strength		Applicable Design Code
1	Built -up (Plates)		GB/T1591-2008	Fy = 34.5 kN/cm^2		CISA - China Iron & Steel Association - Latest Edition
2	Hot Rolled	Angles	GB/T3274-2007	Fy = 23.5 kN/cm^2	CISA - China Iron & Steel Association - Latest Edition
		Beams	GB/T11263-2010	Fy = 23.5 kN/cm^2	CISA - China Iron & Steel Association - Latest Edition
3	Cold Form	Galvanized	GB/T 2518-2008	Fy = 45.0 kN/cm^2		CISA - China Iron & Steel Association - Latest Edition
4	Roof panel/Wall panel (Zinc)		GB/T12754-2006	Fy = 34.5 kN/cm^2		CISA - China Iron & Steel Association - Latest Edition
5	Roof panel/Wall panel (Alu)		GB/T12754-2006	Fy = 34.5 kN/cm^2		CISA - China Iron & Steel Association - Latest Edition
6	X-Bracing	Galvanized cable bracing	GB/T 700-2006	Fu = 157 kN/cm^2		CISA - China Iron & Steel Association - Latest Edition
7	Anchor bolts		GB/T 700-2006	Fu = 40.0 kN/cm^2		CISA - China Iron & Steel Association - Latest Edition
8	High strength Bolts		GB/T 1228-2006	Ft = 30.3 kN/cm^2 Fu = 72 to 83 kN/cm^2		CISA - China Iron & Steel Association - Latest Edition
9	Machine Bolts		GB/T 1228-2006	Ft = 13.8 kN/cm^2 Fu = 41.0 kN/cm^2		CISA - China Iron & Steel Association - Latest Edition