Ngày tạo : 14/07/2015Tạp chí KHCN Xây dựng số 2/2010
PGS. TS. Trần Chủng
Sự cố công trình xây dựng - điều tra và xác định nguyên nhân,
PGS. TS. Nguyễn Võ Thông
Lựa chọn dạng địa hình chuẩn khi soát xét TCVN 2737 : 1995 dựa trên cơ sở tiêu chuẩn CTO 36554501-015-2008 НАГРУЗКИ И ВОЗДЕЙСТВИЯ,
PGS. TS. Đoàn Thế Tường
Vấn đề sử dụng hiệu quả cọc khoan nhồi,
TS. Trần Đình Ngọc
Một biện pháp giảm ảnh hưởng chấn động đóng cọc đến công trình lân cận,
TS. Nguyễn Cao Dương, ThS. Hoàng Anh Giang
Khảo sát đánh giá hư hỏng các bộ phận kết cấu nhà bê tông cốt thép chịu tác động của lửa,
ThS. Nguyễn Sơn Lâm
Giải pháp chiếu sáng tiết kiệm và hiệu quả trong các tòa nhà ở Việt Nam,
PGS. TS. Trần Đức Hạ
Ứng dụng kỹ thuật màng để xử lý nước cấp cho dân cư vùng ven biển và hải đảo,
TS. Phạm Văn Khoan, TS. Nguyễn Nam Thắng
Tình trạng ăn mòn bê tông cốt thép ở vùng biển Việt Nam và một số kinh nghiệm sử dụng chất ức chế ăn mòn canxi nitrít,
KS. Trần Ngọc Đông, KS. Nguyễn Chí Công
Về việc xây dựng lưới trục trên các sàn thi công nhà cao tầng nhằm đảm bảo hiệu quả và độ chính xác cao,
PGS. TS. ĐẶNG NAM CHINH, ThS. TRẦN ĐÌNH TRỌNG
Bình sai lưới GPS trong hệ tọa độ vuông góc không gian địa diện chân trời,
Investigation and causes estimation (pp.3-9)
A/Prof. Dr. TRAN CHUNG
This paper presents procedures and necessary techniques when carrying out investigations of the failures or collapses of construction works. The paper does also presents the main causes and lessons drawn from the failures/incidence or collapses of the construction works in Vietnam during the recent years. Information given in this paper is the research results and experiences of the author during his direct participation in the investigations of the construction works.
Selection of correct topographic when review the TCVN 2737: 1995 which is based on the Russian standard CTO 36554501-015-2008 НАГРУЗКИ И (pp.10-13)
A/Prof. Dr. NGUYEN VO THONG
The Vietnam Institute for Building Science and Technology is conducting the TCVN: 2737:1995 review which is based on the Russian standard: CTO 36554501-015-2008 НАГРУЗКИ И ВОЗДЕЙСТВИЯ. The question is how to choose standard topographic to fit between the provision of Russian standard and the practical conditions of Vietnam. This article presents some analytical results of that choice.
On effective utilization of bored pile (pp.14-17)
A/Prof. Dr. DOAN THE TUONG
Bored piles are being used widespreadly in construction practice but evaluated to be of low economic effectiveness. The paper confirm that bottom cleaning and grouting is the best solution for effective use of bored piles based on analysing mechanism of mobilisation of bearing capacity of piles.
A method of reducing ground vibration due to pile driving (pp. 18-20)
Dr. TRAN DINH NGOC
A method of reducing ground vibration due to pile driving by using the heap of soil was suggested and presented. The results of the calculation and experiment were also presented.
Survey and assessment of fire damaged reinforced concrete building structures (pp.21-27)
Dr. NGUYEN CAO DUONG, MEng. HOANG ANH GIANG
Article introduces general information on the influence of elevated temperature of fire to mechanical and physical properties of the constituent materials of reinforced concrete members. In the article, the outline of survey steps as well as the procedure of data collection and assessment on the damages of fire exposed structural members are covered also, basing on the example of actual jobs had been done.
Energy Efficient Lighting Solutions for the buildings in Vietnam (pp.28-34)
MEng. NGUYEN SON LAM
In the mechanical and electrical equipment system (Air-condictioning, lighting, lift, water supply and others…) serving for operation of the buildings, the lighting system is one of the most energy consumers in the buildings. Therefore energy saving for this lighting system results in saving the considerable amount of electrical energy in the buildings such as Offices, hotels, complex of flats and commerce…
This paper is presented the current energy use for lighting and analysed the loss due to the lighting and recommendations for energy efficient lighting solutions will be made for the buildings in Vietnam.
Membrane Filtration Application into water treatment engineering for coastal and island residential areas (pp.35-41)
A/Prof. Dr. TRAN DUC HA
The rapid exhaustion of the earth’s fresh water resource is caused by the population increase, the climate change etc. To sure a sustainable and safe water supply is necessary for coastal and island residential areas, especially in a coastal country as Vietnam. The paper introduces a desalination technologies applicated in sea water treatment for potable water supply. The development of nano industry opens up a whole possibility applying nano membrane filter for water supply in a coastal and island residential areas. Some sea water treatment technologies used nano filtration (NF) are presented in the paper.
Situation and application of calcium nitrite inhibitor to protect from chloride – induced corrosion for reinforced concrete in Vietnam merine environment (pp.42-45)
Dr. PHAM VAN KHOAN, Dr. NGUYEN NAM THANG
Corrosion of steel reinforcement in concrete structures is the common cause of premature failure. To improve service life of concrete structures, corrosion inhibitor is one of the effective measures to prevent chloride included corrosion. Corrosion inhibitors have been used extensively and successfully in various industries for nearly 100 years. The use of an inhibitor in concrete is an extension of this concept. Although there are many inhibitors available, only calcium nitrite has proven corrosion inhibiting capabilities while enhancing the mechanical properties of concrete. This paper deals with result the successful application of calcium nitrite to be a corrosion inhibitor for reinforced concrete constructions in Vietnam marine environment.
Set up axial network on high-rise floors in construction with high accuracy (pp.46-50)
Eng. TRAN NGOC DONG, Eng. NGUYEN CHI CONG
The article investigated a combination of vertical projection and total station to set up axial network on high-rise floors in construction with high accuracy. A solution of data processing combined vertical projection and total station has been introduced based on indirect network adjustment Method. Stages of data processing proved relevant, appropriate and could be suppoted by computing analysis.
Adjustment of GPS network in the topocentric coordinate system (pp.51-55)
A/Prof. Dr. DANG NAM CHINH, MEng. TRAN DINHTRONG
The baseline components are measured in WGS-84 Cartesian coordinate system. For engineering surveys purposes, GPS networks are usually established in small areas. Therefore, local topocentric coordinate system can be used for adjustment of GPS network. In this system, scale of the network is nearly invariable in the coordinate plane x,y and we also realize common adjustment of GPS vectors and classical observations using total stations.