[professional strength] interpretation of standards and specifications for safety inspection of building construction jgj59-2011 – scaffold

The per capita area of dormitory shall be ≥ 2.5 square meters and ≤ 16 people.

General items include: subcontracting safety management, employment with certificates, handling of safety production accidents and safety signs.

After all, there is no trivial matter of safety.

Construction site: there must be drainage measures and environmental pollution prevention measures such as mud, sewage and wastewater; 3.

The key points of civilized construction guarantee project include: 1.

If there are deficiencies, please point out in a private letter ~ in addition, we should straighten out a concept.

The assurance items of safety management inspection include: safety production responsibility system, construction organization design, special construction scheme, safety technical disclosure, safety inspection, safety education and emergency rescue (according to the principle of 631, the key items are the first four).

Wooden base plate or channel steel with length no less than 2 spans, width no less than 150mm and thickness no less than 50mm shall be set under the base; (2) Frame stability: adjustable support shall be set at the top of the fastener type vertical pole.

Large temporary facilities with an area of more than 1200 square meters shall be equipped with fire cabinets.

Ensure that the project is the key item and the content that must be done; The rest of the processing assurance projects are general projects, but they also need key attention.

This principle is widely used in progress and quality control (model or disclosure, etc.), but it is particularly important in safety control.

(1) Frame foundation: the base should be welded with steel plate with Specification no less than 150mm * 150mm * 6mm and steel pipe sleeve.

Enclosure closure: the enclosure height of main road must be ≥ 2.5m, and the height of general road must be ≥ 1.8m; 2.

For details, please refer to the safety technical code for socket and turnbuckle steel pipe support in building construction; 1.5 full hall scaffold: specifically divided into steel pipe fastener full hall scaffold, bowl buckle full hall scaffold and wheel buckle scaffold.

Socket and turnbuckle scaffold: it is generally used less.

Stacking height of materials: cement and brick height ≤ 1.5m, reinforcement ≤ 3 bundles, semi-finished products ≤ 1.2m, strip reinforcement ≤ 800mm, drainage pipe ≤ 800mm; Two 6L fire extinguishers shall be placed every 100 square meters.

Portal steel pipe scaffold (general items): the portal scaffold is a movable frame, which is generally used temporarily, with a height of no more than 2 floors (4m).

Isolation measures shall be taken for living area and production area.

Interpretation of the following modules: 1.

Scaffold (key items): 1.1.

Moreover, the safety specification contains not only some simple provisions of safety civilization, but also focuses on practices or nodes that are easy to be ignored, so it is necessary to focus on learning.

The so-called 631 means that 60% of them focus on pre control, 30% on process control and 10% on post resumption.

It shall be concentric from top to bottom during installation; The bottom longitudinal and transverse cross bars of the bowl button vertical pole shall be used as the floor sweeping pole, and the height from the ground shall be ≤ 350mm.

(4) Scaffolds and protective railings: two protective railings shall be set at 1.6m and 0.8m of the operation layer, the outer layer shall be set with ≥ 180mm toe board, and the protruding cross bar shall be ≤ 159mm; (5) Setting of transverse horizontal bar: it is set at the junction of longitudinal horizontal bar and vertical bar, and a small horizontal bar is added in the operation layer; The horizontal rod of single row scaffold inserted into the wall ≥ 18cm; Longitudinal bar overlapping ≥ 1m; (6) Frame protection: safety net shall be used for double-layer bottom under the operation layer, and safety net shall be set 10m below; 1.2.

Professional strength refers to the learning of professional abilities such as norms, systems and atlas.

The key points are the same as above, the upright pole foundation is flat and compacted, and the base plate is set under it; 1.3.

In addition, the content sources are relatively wide, and Xiaobai is also a variety of collected data.

Fastener steel pipe scaffold (guarantee items): (1) pole foundation: the scaffold foundation shall be flat and compacted, and drainage measures shall be set, with base plate or base; The frame body shall be provided with vertical and horizontal sweeping rods not less than 200mm; (2) Tie between frame and building: the distance between wall connecting parts and main node is ≤ 300mm (the junction of vertical pole, horizontal large cross bar and horizontal small cross bar is the main node); The wall connecting parts shall be set from the longitudinal horizontal bar on the first floor of the frame bottom; Rigid wall connecting parts shall be set for double row scaffold with height ≥ 24m; (3) Component spacing and cross bridging: cross bridging spans 5-7 vertical poles, with an included angle of 45 ° – 60 ° with the ground, and the overlapping length shall be ≥ 1000mm, which shall be fixed with more than three fasteners; The cross bridging shall be connected with the longitudinal rod, and the distance from the center of the rotating fastener to the main node shall be ≤ 150mm; The cross bridging longitudinal horizontal bar is set at the inner side of the vertical bar, the outer frame below 24m is set at both ends, corners and middle intervals ≤ 15m outside the frame body, and the outer frame above 24m and all cantilever frames are set with continuous cross bridging.

The key points written by Xiaobai are also disassembled from the specification, which are not fully collected.

First clarify two concepts: assurance project and general project.

In addition, what is the 631 principle? Now many real estate companies are emphasizing the 631 principle.

The vertical pole shall be equipped with an adjustable base or fixed support..

Xiaobai emphasized in front, focusing on the promotion of general force + professional force.

In this article, Xiaobai lists some knowledge points about the standards and specifications for safety inspection of building construction, which is not only a repetition of his own learning, but also hopes to better help everyone.

If the frame is erected on the soil layer, a concrete cushion with a thickness of more than C15 and ≥ 150mm shall be set, or a cushion plate with a thickness of ≥ 50mm, a width of ≥ 200mm and a length of ≥ 2 spans shall be set; (3) Frame stability: the wall connecting parts shall be set in the same plane on the same floor, no more than three spans, no more than three steps vertically, and the wall connecting parts shall be set at corners and other nodes; The setting position of cross bridging is the same as that of snap type, but it should be noted that each vertical cross bridging should be set continuously from bottom to top.

The screw shall not extend beyond the top of the steel pipe by more than 200mm, and the gap between the outer diameter of the screw and the inner diameter of the vertical pole steel pipe shall not be more than 3mm.

Socket Data Clip

The general key points of civilized construction projects include: eight boards and two drawings (the requirements of different real estate will vary slightly), namely, project overview board, personnel list board, fire protection board, safety production board, civilized production board, supervision telephone board, energy conservation and environmental protection board, key hazard notice board, general plan, safety signs and fire fighting map.

Bowl buckle scaffold (guaranteed items): (1) construction scheme: the erection of the scaffold body needs a construction scheme, and the height ≥ 50m needs to be demonstrated by experts; (2) Frame foundation: the foundation shall be flat and compacted with drainage measures, and the height of the sweeping rod shall be ≤ 350mm.

It is strictly prohibited to remove the floor sweeping pole during construction.

Once there is an accident, no one can hold it.

The spacing of each group of fire extinguishers shall be ≤ 30m, and not less than 2 / group; 4.

General strength refers to the daily reading of logic or management books and the accumulation of words and deeds taught by people around us.

It is important to control the progress and quality in the construction process, But safety is the most basic and should be guaranteed.

1.4.

(4) The frame protection is the same as the snap type, which belongs to the general project.

If there is a gap between the U-shaped support and both sides of the ridge beam, it must be tightened.

It’s ok if there is no accident.