Prefab Light Steel Structure Warehouse shed
Qingdao KXD Steel Structure Co,.Ltd,is one of the fore-running company who has been dedicated to the designing, supplying, construction and contracting of various steel structure building projects whether for industrial, commercial, residential and agricultural purpoes with nearly 20 year warranty. KXD was incorporated in the year of 2003 and has also acquired the ISO 9001;2008 and CE certificates. We at KXD pride ourselves on the fact we are one of pioneer general contractor to provide integrated and custom design, engineering, manufacture and installation services for your project.
Steel structure assemble showing:
I. References:
1. Construction Detail of Steel-structure shed.
2. Quality Acceptance Code for Steel-structure of People's Republic of China (GB50205-2001)
3. Standards of Steel-structure Installation Project by Qingdao KXD Steel Structure Co., Ltd. II.Pictures are only for reference.
1. Constructors 1) managerial and technical staff, 3-7 people; 2) erectors, 20-50 people; 2. Installation appliances 1) Equipments: 16 tons crane, 3-ton forklifts, welding machine, cutting machine, electric drill 2)Installation tools and appliances: slings, fixtures, wire ropes, cable wind rope, hemp rope, but chain, scaffolding, bamboo ladders, crow bars, sledge-hammers, stow-woods, glue guns, riveters, steel scissors, red steel puncher 3)Security supplies: Helmets, safety belts, safety nets, protective gloves, non-slip shoes, leakage protectors etc. 4)Setting-out measuring tools: theodolites, level instruments, steel tapes, steel rulers, spirit levels, hammer lines, construction line, ink ducts, red and blue pencils. 5)Construction wrenches: M20 high-strength large hexagon torque wrench, M12, M16|, M20, M22, M24, M30 open and spline end wrenches.
3.Materials checking: 1)Check the material list according to the Construction Detail, and then check objects according to the list, to avoid affecting installation schedule because of lacking components. 2)Check materials, the damaged or deformed should be rectified and repaired, and clashing painting parts should be made up. 3)Check qualified material quality certifications, English and Chinese signs, inspection reports and re-inspection reports. 4.Preparation of construction 1)Construction site should be flat and roads, water, electricity, storages and communications should be clear on the scene. 2)The construction site should have: office, rest, life, production, storage and other temporary housing. 5.the test of foundation buried bolts Use the theodolite and steel ruler to fix the base point, on which vertical and horizontal axis should be drawed. Then check anchor bolts according to the axis, and allowable deviation of the anchor bolts should be within 2MM. 2)Use the level instrument to take level of anchor bolts, allowable height/level deviation of the anchor bolts should be within 5MM. 3)The axis, height/level, deviation of the anchor bolts should be reported when they exceed the allowable norms. The responsible party should rectify the deviation according to the program performed by building and supervising teams.
V.Installation of steel columns:
1.Preparation: 1)Check up components and drilled holes of steel columns correctly. 2)Use theodolites to adjust level of the anchor bolts to ±0.00 3)Use forklift to transport steel columns to position for the convenient purpose of lifting by crane. 4)Draw axises around the column or position paralleled to the axis. 5)Roll iron sheet into a cylinder and set into the anchor bolt to prevent damage screws when steel column falling down. 2.Hoisting: 1)Hoisting should be started from axis between steel columns. 2)Because of vertical hoisting installation, colligation point of column should be at the position of 2/3 of total length. 3)A hemp rope should be tied to the bottom side to prevent the column over-swing in the process of lifting. 4)When steel lifted off at about 200mm above the ground, rigging and crane should be checked and confirmed safety, then the hoisting can be continued. 5)When steel column is lifted at 20-50mm above the anchor bolts, two feet catch the steel column to make the hole on the base anchor collimate the bolt rod while constructing the crane to lift down slowly and adjust the position continually to make the axis on steel column in accordance with the axis on the base. When both axies are fit, install inner plate to tighten the anchor bolt. 6)Remove hook after strengthening the steel column temporarily by using cable wind rope. 7)Hoist second column followed the above methods, removing hook after installing supports and tie bar between columns. 8)Hoist other columns one by one in the same way, meanwhile, installing the supports between columns and tie bars, then two purlines can be installed on the gable as supports. 3.Calibrating columns 1)At the time of hoisting the second column, placing two theodolites separately to both axises of the first installed steel column to examine the verticality of the steel column (allowable deviation of verticality of the steel column is within 5mm). Adjust nuts to make the verticality of the steel column to the required standard when the deviation exceeds. 2)Calibrate other columns in the same way. 3)Retest the steel column after installation of the supports and tie bars, and adjust the steel column to meet the requirement.
Installation beam
3)Checking after the installation: A.After screwing finally, the exposed screw thread of the high strength hexagonal bolt should be 1-4 threat pitches, the number of which should not be more than 10% of the total length. B.Inspection of the high strength hexagonal bolts should be conducted one hour after installation and must be finished within 24 hours. Make sure each bolts screwed tightly. 3.Hoisting of steel beams 1)For example, the total length of the steel beam is 30 meters, therefore, there should be three lifting joints in all. When lifting the ground 200mm high, check has no potential safety hazard rear can continue lifting. 2)Installation should from the gabled wind resistance column axis 1 or shaft 31 begins. Steel girder wand the side of the first column and then loaded on a temporary bolt connection with the column of steel beams, then according to the construction method of high strength bolts, tighten all the high-strength bolts. 3)After high strength bolts tightened, with the theodolite and line hammer line ruler construction, testing, calibration of the vertical steel girder, lateral bending vector high. Girder span of verticality tolerance of 2mm, steel beams lateral bending high vector allowable deviation of 5mm. 4)Fixing steadily the wind resistance column and the steel column with bolts after calibration, then hoisting second beam. 5)Remove hook after screwing the high strength hexagonal bolt and installing supporting tie bars and some purlines. 6)Install steel beam, horizontal supports, tie bar and purline one by one.
| No. |
Sort |
Name |
Specification |
| 1 |
Specification |
length |
12000mm or customized |
| 2 |
Width |
5900mm or customized |
| 3 |
Wall height |
2800mm or customized |
| 4 |
Clear height |
2800mm or customized |
| 5 |
Roof slope |
11 degree or customized |
| 6 |
Standard accessory |
Wall board |
50mm-150mm thickness EPS/glass wool/PU panel,0.5mm color steel sheet.
13kg/m3 polystyrene foam density. Heat Insulated coefficient is 0.041w/m.k. Heat transfer coefficient is 0.38w/.k. |
| 7 |
Roof board |
50mm -100mm thickness EPS corrugated panel,
0.4mm steel sheet,13kg/m3 polystyrene foam density. Heat Insulated coefficient is 0.041w/m.k. Heat transfer coefficient is 0.58w//k. |
| 8 |
Door(D-1/2/3/4) |
SIP single door with dimension of 750*2000mm, furnished with a cylinder lock with 3keys. Doorframe is steel wood or aluminium. |
| 9 |
Window(W-1) |
PVC, white color, with dimension of 940*1000mm, glazed with glass in a thickness of 5mm, two bay fixed, and two bay sliding, supplied with fly screen. |
| |
Window(W-2) |
PVC, white color, with dimension of 940*500mm, glazed with glass in a thickness of 5mm, two bay fixed, and two bay sliding, supplied with fly screen. |
| 10 |
Base beam |
H style steel Q345, galvanized |
| 11 |
Base purline |
C style steel, Q235, galvanized |
| 12 |
Base support |
Square steel tube Q235, galvanized |
| 13 |
Base lifting part |
Square steel tube, Q235, galvanized |
| 14 |
Base channel |
Press forming steel plate or U shape steel. Q235, galvanized |
| 15 |
Roof beam |
C style steel,Q235, painted |
| 16 |
Base panel |
Plywood with 14mm thickness in room and bamboo panel with 14mm thickness in bath and kitchen |
| 17 |
Decoration and connection |
Color steel sheet, 0.50mm thick |
| 18 |
Option |
Decorative floor |
PVC or laminated floor ceramic tiles |
| 19 |
Drainage system |
Provided plan, design and construction |
| 20 |
Electric system |
Provided plan, design and construction |
| 21 |
Technical parameter |
Bearing load |
30kg/m2 |
| 22 |
Wind pressure: |
0.45KN/M2 |
| 23 |
Fire proof |
B2 grade |
| 24 |
Resistant temperature |
-20 to 50 |
Audited Supplier 
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