What happened to the high-rise wall crack?
Recently, the topic of wall cracking in high-rise buildings has sparked widespread discussion on social media and news platforms. Many netizens posted photos of cracks in the walls of their homes or surrounding high-rise residences, expressing concerns about construction quality and safety. This article will analyze the causes, impacts and countermeasures of high-rise wall cracks based on hot data from the entire network in the past 10 days.
1. Statistics of hot discussions on the entire network
| platform | Amount of related topics | Highest number of discussions per day | KeywordsTop3 |
|---|---|---|---|
| 128,000 items | 32,000 (May 20) | Wall cracks, settlement, rights protection | |
| Douyin | 56,000 videos | 11,000 (May 18) | Home inspections, developers, structural safety |
| Zhihu | 3400+ questions and answers | 478 new items added (May 19) | Building materials, construction standards, responsibility identification |
2. Analysis of main cracking types
| Crack type | Proportion | Typical characteristics | Common causes |
|---|---|---|---|
| temperature crack | 42% | Oblique or network cracks | Thermal expansion and contraction without leaving expansion joints |
| settlement cracks | 28% | vertical through cracks | Uneven settlement of foundation |
| structural cracks | 17% | Through load-bearing walls | Design flaws or construction issues |
| Others | 13% | local cracks | Material aging, external impact, etc. |
3. Experts interpret three major focus issues
1. Does it endanger building safety?
Experts from the China Academy of Building Research said:More than 90% of wall cracks are non-structural cracks, mainly affecting the appearance, but if the crack width exceeds 2mm or continues to expand, it needs to be identified by a professional agency.
2. How do developers respond?
Many real estate companies issued statements saying that they have launched investigations, but netizens revealed:About 65% of complaints were not effectively repaired, some developers used "normal phenomena" as an excuse.
3. Difficulties in safeguarding rights of owners
Legal experts pointed out:reversal of burden of proofis the key. The owner needs to keep the timeline evidence of crack development (photos, videos, inspection reports), and pay attention to the timeliness of the 5-year warranty period.
4. Inventory of Typical Cases
| city | Community name | Building age | Crack characteristics | processing progress |
|---|---|---|---|---|
| Hangzhou | A project in Greentown | 3 years | Multi-door window angle 45° oblique split | Developer promises grouting repairs |
| Chengdu | A certain property of Vanke | 5 years | Basement wall crack | Structural reinforcement started |
| Guangzhou | A community in Poly | 8 years | Exterior wall insulation layer peeling off | Property owners committee sues developer |
5. Practical Advice Guide
1.Preliminary self-test method: Use a coin to tap around the crack. There may be hollows in the sound cavity; record the change in crack width with a ruler every month.
2.Rights protection steps: ① Submit a written report to the property management company ② Request third-party inspection ③ Complain to the housing and construction department ④ Take legal action if necessary.
3.Precautions: When taking in a new house, focus on checking the flatness of the walls, observing whether there are signs of water seepage on rainy days, and avoiding unauthorized removal of load-bearing structures during decoration.
At present, the Ministry of Housing and Urban-Rural Development has issued a notice requiring all localities to strengthen quality supervision of projects under construction. Experts remind,Don’t panic too much, but pay attention, correctly distinguish the difference between common quality problems and major safety hazards. This article will continue to pay attention to the progress of the incident.
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