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What should be paid attention to in the renovation and renovation of old houses?
(Renovation and renovation of old houses)
In general, dangerous buildings can always be repaired, but it depends on whether there is repair value. The dangerous houses we discussed are all worthy of repair and are targeted.
If the danger of a column causes danger to the whole building or part of the house, measures should be taken for the repair of a column when repairing. If the beam, column, wall and foundation of a planted house are dangerous, then The house should be completely repaired to achieve the purpose of strengthening the entire house.
The danger of the house is due to the reduced strength of some components, and the focus should be placed on the reinforcement of the components. For example, if the cross-section of the component is increased, part of the component is removed, and the use property is changed (meaning that the house is reduced in load), the method of adjusting the load distribution of the house and improving the bearing capacity of the component may be used to achieve the purpose of reinforcement.
Increase the overall rigidity and stability of the house. Some components of the house, lacking in stability or rigidity, make the house dangerous. If the slenderness ratio of the column is too large, the deflection of the beam is too serious, the large eccentric compression member has excessive bending deformation, and the truss between the wooden trusses is not firmly combined, so that the inclination of the house should be increased, and the cross section of the member should be increased. The intermediate pivot point reduces the calculated length. Methods such as reducing the eccentricity of the member and strengthening the stiffness and stability of the member. If the danger of the house is caused by improper space support or failure of the support link, the support system should be replaced and adjusted to enhance the reliability of the connection.
Matters needing attention in the reinforcement of old houses:
1. When carrying out the reinforcement design of the house, we must pay attention to the rationality of the reinforcement.
Whether it is local reinforcement treatment or the overall reinforcement of the house, it cannot be ignored in the rationality, and the used building materials must also meet the relevant safety standards and quality standards, otherwise the expected reinforcement will not be achieved. The effect is. This is the first issue we need to pay attention to when building a house.
2. Before the reinforcement construction, relevant personnel of management and construction should understand the surrounding environment of the construction site.
Understand the forces and forces of the reinforcement structure, check and record the cracks in the overall structure. If there is a phenomenon or doubt that does not conform to the design, it should be reported in time, there is no luck, blind start.
3. When building reinforcement design, it is also concerned with the construction cycle of the reinforcement design.
Make a complete construction schedule, avoid excessive consumption of time during the construction process, improve overall construction efficiency and shorten the time required for house decoration and reinforcement. As a result, the construction speed will be greatly improved, but the speed can not ignore the quality, we must ensure the quality of the construction efficiency.
4. In the construction process, for the dangerous components and the pressure components, practical monitoring and safety measures are required, and approved by relevant departments.
During the construction process, always pay attention to whether the components are abnormal. If there is any problem, stop the construction, add temporary support, and discuss with the relevant personnel to avoid new problems in the reinforcement process.
5. During the reinforcement process, the safety support system and work platform used in the construction shall be inspected frequently.
Avoid the phenomenon that the structural force changes, and the strength of the safety system is reduced, causing it to fail.
6. The project leader should pay attention to protecting the health of workers during construction.
Take effective protective measures against dust, noise and harmful gases in the surrounding area.
7. During the reinforcement construction, many materials are flammable or high temperature failure materials. Fire equipment should be installed at the site, and fireworks are strictly prohibited.
In addition, materials that are subject to high temperature failure should be reasonably stored to avoid high temperature exposure to ensure the quality of construction materials.
8. Some details of the house reinforcement design cannot be ignored.
For example, the use and selection of building materials during the reinforcement design, the technical operation during the construction process, etc., although these problems seem to be trivial, but directly related to the quality and safety of the reinforcement work. So some seemingly ordinary little things can't be ignored when doing reinforcement design.
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