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The process of building a knock-down house

Fiber cement steel frame house or steel frame knock-down house It is a house building, small building, usable area ranging from 6-36 sq m. Most of them are built in the form of moving to be placed at the job site.

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The popular foundation is used as a slab-on-ground concrete foundation because it is convenient for construction and installation.

The foundation of a concrete slab is laid on the ground (slab on ground) with the following steps:

  • The area should be filled with soil for at least 1 year. It is not recommended to place it in a new landfill because the soil layer is not yet tight and there is a hollow under the soil layer. soil and easily settles
  • Use a bulldozer to adjust the soil surface. to have the same soil level as possible
  • Placing a concrete pouring steel form.
  • Check the ground level and the concrete poured steel form.
  • Leveling the ground, laying a steel concrete pouring form.
  • Leveling with steel pouring.
  • Settling on the tendon. to locate the plate
  • Stretch the tendon to find the building scene.
  • Sprinkle coarse sand on the foundation.
  • Adjust the foundation sand to be smooth.
  • Place Wymate Iron / Tie Wymate Iron
  • Place the concrete foundation plate on the soil.
  • Place the cement ball next to the steel wimate.
  • Start of concrete pouring
  • Concrete pouring/concrete screed
  • Concrete pouring/concrete screed2
  • Rough polishing work on concrete surface.
  • Rough polishing work on concrete 2

2 Assemble the steel frame knock-down structure

  • Cut the steel to assemble the lower beam.
  • Assemble the lower beam 1
  • Assemble the lower beam 2
  • Knock the slag (joining incense sticks)
  • Cut the pole.
  • Install steel brackets to support beams.
  • Cut the notch on the head of the pole
  • Assemble the columns, beams, set 1
  • Assemble the second set of beam columns.
  • Prepare to assemble.
  • Lift and assemble the lower beam.
  • Check and adjust the pole level.
  • Check the lower beam scene.
  • Measure the corner of the pillar, measure the bottom diagonal.
  • Installing the upper beam and measuring the diagonal angle
  • Measurement of the diagonal angle above.
  • Cut the columns and weld the columns and beams.
  • Connect the columns and beams to complete the line.
  • Cut the alley beams and connect the beam columns completely.
  • Put beams in the alley.
  • Assemble and install alley beams.
  • insert the center pole
  • Measure and mark the location of alley beams.
  • Install alley beams.
  • Measure the length of the floor and mark the location to be installed
  • Install the floor
  • Install the floor 2
  • Install alley floors.
  • Install the floor in Soi 2
  • Install the floor in Soi 3
  • Steel cutting
  • Connect Hua Sae
  • Install balcony pillars.
  • Install the balcony pillars.
  • Place
  • Install the balcony rafters.
  • Install the eaves to support the eaves.
  • Install rafters on the balcony 2
  • Install rafters on the balcony 3
  • Install the wall frame.
  • Install
  • Install rafters in the house
  • Install rafters in the house 2
  • Install rafters in the house 3
  • Install a frame to support the roof eaves.
  • Install a frame to support the roof eaves 2
  • Install a frame to support the roof eaves 3
  • Install the wall frame.
  • Install the wall frame 2
  • Install the wall frame 3
  • Install the wall frame 4
  • Install bathroom wall beams 1
  • Install the bathroom wall beams 2
  • Install the bathroom wall frame 1
  • Install the bathroom wall frame 2
  • Install the bathroom wall frame 3
  • Install the bathroom wall frame 4
  • Install balcony railings 1
  • Install balcony railings 2
  • Install balcony railings3
  • Chia to keep the balcony work.
  • Assemble the stairs to go up.
  • Install the bathroom floor.
  • Install the bathroom floor 2
  • Install the bathroom floor 3
  • Install steel plates on the bathroom floor.
  • Install steel plates on the bathroom floor 2
  • Sealing guard rails with acrylic sealant.
  • Paint the steel sheet to prevent rust.
  • painted steel sheet to prevent rust2

Inspection of welds is standardized. and there is no problem in use

The structure, columns/beams, floor joists are box steel, should be inspected as follows:

  • Is the joint fully welded on all 4 sides?
  • Is it welded as a large hole?
  • Welded the structure of the house. outside beam columns Is there a chance that water got into the iron box?
  • Steel structure Is there a polished finish to decorate the welds?

*** Steel with a thickness of 2.0 mm or more to help make welders easier, not penetrate or make holes.

Examples of non-standard welds

For example, columns, beams at the bottom or slabs are often found that the welders are not complete.

Examples of welded holes There is a chance that rain and water can get in.

The welding sample is not full of water. There is a right to enter.

*** Steel with a thickness of 2.0 mm or more to help make welders easier. not through a hole

Examples of non-standard welds

Examples of welding that are not polished

The welding sample is not full of water. There is a right to enter.

The example is welded into a large hole.

Example. Notice the bad welds. Steel will not be continuous. And has an uneven steel texture, steel that is 1.2 mm thin, affects the welding greatly. Can’t walk in line, weld well, most of them can easily penetrate through holes.

*** Steel with a thickness of 20 mm or more to make it easier for welders to not go through holes.

Examples of standard welds

steel outside and inside where there is a chance of being exposed to water or rain, must be fully welded on all sides not allow water to enter Otherwise it will result in water trapped inside. causing the steel to rust from the inside, the service life of the steel will be shortened

full weld line example water cannot enter

a good welding example There will be a lot of steel and continuous connections.

*** Examples of welding and grinding to get the job done

Examples of standard steel frame welding work

In the case of steel boxes or steel round tubes outside, the steel sheet should be welded to close. head/end steel box to prevent rust inside the steel box cause the service life is shortened

***For example, using scrap steel boxes or C-section steel to cut into steel sheets to be welded to cover the end of the steel box.

In the case of welding of C-section steel

C steel has a limitation in welding because it has 3 sides of the steel face and the assembly doesn’t fit like steel. The box collides with each other.

Summary of methods for inspecting welds to have no problem in use

  • Steel box that is the structure of the house and the floor should be fully welded on the 4 sides of the joint and the weld does not go through a big hole.
  • Steel boxes outside that are prone to rain or water must be fully welded on all sides to prevent water from entering.
  • Steel box or round steel pipe outside should bring steel plate
  • Come to weld off the head/end of the steel box.
  • C steel should have one longitudinal weld, not just a point weld.

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