Pure shear wall high rise measurement control line, shear wall structure is put control line or edge

There is no reasonable and unreasonable statement about the control line, it can only be said that according to the needs of the project and personal habits, it is best for yourself to suit yourself, but the control line is still not too far away from the big line (that is, the main axis), because if you always pound the small ruler, it is easy to have an operation error, and try to integer number, which is mainly to prevent the lofting from remembering or seeing the wrong size!!

1.In principle, the horizontal positioning line is set in the position of large passages such as walkways, (the specific distance is not deviated from the distance requirement in personal opinion, what you mentioned, in fact, can.) The key is to facilitate the leads) and set the thru-line in both directions on the main axis.

2.The horizontal positioning control line of the main construction stage is bounced at the four edges of the component to control the reinforcement offset and the positioning of the formwork.

3.In addition to the masonry bilateral line elastic in the masonry stage, the masonry horizontal positioning control line should be installed 500mm away from the wall on the inside of the room to ensure that the room does not appear large or small or irregular. In addition, the stucco control also controls the height of the ash cake in this way.

4.The height of the main stage is controlled, and the concrete pouring is marked at the reinforcement of the structure, that is, the 500mm line is placed to control the concrete pouring height.

5.When the formwork is erected, a 1000mm line is bounced on the inner support frame to control the height of the square timber and the height of the formwork laying.

6.The elevation control of the ceiling floor project is controlled by the 500mm line of the wall. Attention should be paid to the door installation elevation, ceiling installation elevation, ground laying elevation, and the width of the door sleeve roof from the same baseline.

It is suggested that the thickness of the ground pavement should be determined after the installation height of the ground walking pipe is comprehensively considered for the 500mm line elastic installation, and then the 500mm line height should be calculated from the position of the pavement height. Do not calculate the 500mm line height directly from the height of the structural layer. (In this way, the headroom height of each standard layer can be maintained).

In order to ensure the correct position of the shear wall and partition wall and the timely insertion of the subsequent decoration construction, the position of the wall is measured according to the axis first, the wall edge line is popped up, and then the control line of the wall 50 cm is measured, and the red triangle is marked with the same axis, and the number of red triangles of each axis in each room is not less than two. After the construction of the layer wall is completed, the control line should be projected to the wall in time, so as to be used to check the deviation of the steel bar and the wall, and to meet the needs of the decoration construction measurement.

The control line should not be too far away from the large line (that is, the main axis line), because if you always pound the small ruler, it is easy to have an operation error, and try to integer to avoid the final cumulative error.

Your question is too big, is it best to ask the control line**? It can be placed in the corner of the building, and it is convenient to reserve a hole on the inside of the layer at a place of 1 meter.

Is it 200 bullet lines on the ground and the wall?

1. Formwork positioning construction;

2. The wall stucco is used squarely;

The edge line is placed for carpentry molding, ironworkers for ironwork, and at the same time detect whether the shear wall is displaced;

The control line we generally call the "big line", which is used for their own pay-off, because many times the side line will be blocked or inconvenient, we will be off the axis or the side line meters, 1 meter or other sizes according to the specific situation.

It's okay, I'll put 20 control lines here.

Both the control line and the wall edge line are to be released.

According to the GB50026 measurement code, the axis point error in the range of 60-100 meters of building height is meters. The GB50204 concrete structure construction specification requires that the allowable deviation of the axis of the template is 5mm

The general difficulty is the processing of the connection of the concrete upper and lower structures of the shear wall!

In terms of reinforcement, 1, the connection of longitudinal reinforcement (usually electroslag pressure welding or binding) 2, the position of the dark beam, the number of waist reinforcement 3, the position of the dark column, the reinforcement 4, the treatment of the steel bar at the intersection of the longitudinal reinforcement and the beam 5, and the variable section.

Formwork: 1. Reinforcement scheme, explosion-proof mold. 2. Treatment of the connection between the shear wall and the staircase.

Concrete: mainly to prevent vibration leakage and stick head.

The so-called control line is used to facilitate the installation of walls or formwork.

The 20 cm of the control line in the wall line belongs to the pay-off personnel themselves, and the principle is how convenient and how to determine.

Put the wall line OK:

Positioning first determines the axis, and then there is the position of the wall column, rather than having the wall and then "how to determine the axis of the position of the shear wall column"!

A wall column is a constrained (or structural) edge member of a shear wall, and the length of the wall is known as long as the position of the wall is determined.

The so-called control line is used to facilitate the installation of walls or formwork. It belongs to the pay-off personnel themselves, how convenient and how to determine. It doesn't have to be 200. Usually the control axis is multiple. If you don't understand, you can ask.

Hello, because your wall is 20 centimeters thick. Otherwise, it is not absolute.

It is better to put the middle line of the beam and put the edge line, so that it is easier to check the number, because if you do not put the axis, sometimes the beam is not aligned, it is not easy to check.

1. Plane size control.

First of all, it is necessary to base the positioning criteria. This is required to be precise in the planning and surveying department. According to the positioning pile (coordinates), the lofting is to pay attention to the large size (through size) to pull through the measurement, and the rigorous small tape measure to superimpose the measurement.

The second is the lofting sequence: from the back of both sides to the middle, according to the axis of the drawing, the error or deviation is concentrated in the middle of the stairwell and the position of the equipment room behind the elevator room.

2. Verticality control.

The upper floors usually do not use plumb weights to hang the vertical line, and generally use a laser vertical collimator: generally the deviation is minimal within 10 layers. So on the 10th floor, the 20th floor, the 30th floor.

Set the vertical collimator datum point. Generally, 50 line intersections, in order to set up the instrument to facilitate the use of 1 meter line intersection.

3. Structural layer height control.

A frame column (or shear wall dark column) on the outside of the building is introduced from the outdoor reference point, and the first floor can be made of 50 lines, and then measured from here upwards, and each layer is provided with 50 lines of the layer, and the introduction of 50 lines of floor height is the key to floor height control in the process. It is carried out in two steps: (1) from the lower layer to the top, to the outer main reinforcement of the frame column (generally marked with a paint triangle symbol), and then spread out on the plane from this point with a level (or horizontal tube).

Controls the concrete surface of this layer of the structure. (2), after the completion of concrete pouring, the demold is completed and then the 50 lines of the layer are hit on the concrete surface of the outer layer of the frame column, and the ground and the painting project are controlled later.

It depends on whether you are pay-off for the first time or when you have reached the standard level.

If the standard layer is not placed in the center, the 250 shear wall can only be strengthened to remember which side of each axis, as long as you remember this pay-off, it will be very fast, either 35 or 40, just draw the dots.

But now this is basically what labor construction workers do.

According to the axis of the wall column, the edge of the wall column position is popped out. Make a template for carpentry. There is no quick way.