Detailed analysis of aluminum veneer curtain wall construction

 

 

The aluminum material for curtain wall construction needs to be lighter in quality, strong in decorative effect and easy to clean, so the aluminum composite panel has an absolute advantage. However, in the process of its use, there are also some quality problems, so the relevant personnel should make a detailed analysis of the construction of aluminum veneer curtain wall, find out these problems and solve them reasonably.

Characteristics of 1. aluminum veneer curtain wall

Aluminum plate with a thickness of more than 1.5mm can be used as aluminum veneer for curtain wall construction. In the corresponding construction, the surface of aluminum veneer shall undergo complex treatment and fluorocarbon spraying treatment. The commonly used aluminum veneer model is 3003 and the state is H24, which is jointly constructed with high-quality and high-strength aluminum alloy plates.

In the construction of curtain wall, the relevant units should install reasonably, pay attention to the various processes of construction, control the key problems of the project, and avoid the adverse consequences. In all stages of curtain wall construction, there may be mistakes, the relevant personnel should strengthen the control of this aspect, otherwise it will cause the occurrence of indoor wall peeling or damp phenomenon. If the aluminum veneer is not well protected, aging or long-term wind and rain effects may also lead to shedding.

Problems in the construction of 2. aluminum veneer curtain wall

Problems of (I) construction materials

In the construction of curtain wall, it is necessary to ensure that the thickness of aluminum veneer meets the requirements. The minimum thickness of aluminum veneer is 2.28mm, and relevant personnel should understand the standard size and control it. Some construction units of fluorocarbon paint spraying surface material control is not strict, did not meet the anti-corrosion standards. If the board surface is uneven, it may affect the connection of the node, resulting in insufficient connection. In the curtain wall construction, the relevant personnel should pay attention to the sealing, to avoid affecting the overall strength of the curtain wall and anti-seepage.

(II) the problem of imperfect security information

　　如果施工单位不重视施工材料，会导致其存在质量问题，一般表现为资料不全面。例如施工人员在使用结构胶材料时，找不到有效期限的证明资料，也缺乏检测合格证。一些单位虽然有氟碳漆的出厂合格标志，但是通常是英文的，缺乏中文翻译[2]。

The problem of (III) component production

Curtain wall construction requires aluminum alloy to have high accuracy when cutting, but in fact, the gap between adjacent components is relatively large, and when cutting, there is no chamfering treatment, resulting in excessive concentration of corner stress. Some units use hanging baskets for curtain wall construction. Relevant personnel need to purify the aluminum veneer so as to control the relative humidity and temperature well. If this work is not done well, the outer layer of the aluminum veneer will be contaminated with dirt and stripped.

(IV) on-site retest

Some construction units did not strictly carry out the retest work, did not reach the standard in the three-sex test, or did not carry out the three-sex test. Some construction units did not conduct self-inspection of the archives, and lack corresponding evaluation records for this information. Some construction units still have obvious cost phenomenon, which can not make the real situation of the project reflected through the retest.

3. Prosecution Measures for Curtain Wall Construction Problems

(I) for construction materials

Relevant personnel must strictly review the raw materials entering the site, and must ensure that these materials meet the national product standards, so as to meet the safety of curtain wall construction. Curtain wall construction of aluminum veneer to meet the three test standards, better construction.

(II) for the problem of imperfect security information

The construction unit can establish a safety guarantee system to monitor the transportation situation in real time. In this process, special personnel can be arranged to check and accept the construction safety and quality. If quality problems are found, they should be dealt with in time and the on-site construction personnel should be notified to ensure that the construction is effectively monitored. The construction of aluminum veneer curtain wall is easily affected by wind and rain and machinery, so the relevant personnel should ensure the integrity and controllability of the construction. Construction personnel should be equipped with work permit, in order to carry out construction. All accessories must be inspected in front of the technical personnel of the construction unit when entering the site. At the same time, sampling tests must be carried out to ensure that the quality is qualified before the installation and assembly of aluminum veneer can be carried out.

(III) the problem of component production

　　施工人员要对安装过程进行复查，并在制作加工前，进行相应的复核工作。相关人员要保证建筑设计的施工图进行严格核对，为了保证工程质量，还检测已经建成的建筑物。相关人员要根据已经建成的幕墙设计情况进行分析，如果有需要，可以适当调整，但是这项工作需要在人员的审核下进行[3]。幕墙的质量与主体结构和施工表面的平整度有非常密切的关系，相关人员要遵守结构施工的相应规范，保证主体结构中的预埋件和幕墙，都能严格按照设计要求施工，通过这些方法保证主体结构和幕墙的紧密连接。一般情况下，埋件部位的偏差应小于20mm，其标高偏差应小于10mm。

(IV) for the on-site re-examination of the problem

For the re-examination of the construction site, the staff should be issued a supervision notice, in this way to ensure the quality of the material, to prove that the design is effective and accurate. The supervision notice shall be issued in time, and the re-examination and examination shall be done before the construction. If the construction unit fails to conduct the re-examination in time, the quality implication will be left behind, resulting in problems in the later period.

Concluding remarks

Through the above analysis of the construction of aluminum veneer curtain wall, reasonable construction methods can ensure the effective construction of curtain wall and ensure that it meets the quality requirements. Aluminum veneer in the construction of a certain particularity, for its quality control should be carried out before the curtain wall construction, and then in the post summary and auxiliary work, so the relevant personnel must strictly abide by the provisions of the state, to achieve quality control objectives, to ensure that the construction can proceed smoothly.