TS. Trần Minh Đức
Hoàn thành dự án tu
bổ, bảo tồn và tôn tạo di tích chùa Thiên Mụ tại Thừa Thiên – Huế, ThS. Lê Trường Giang, GS. Yukio Tamura,
PGS. Masahiro Matsui Mô phỏng gió bão nhiệt đới vùng biển Việt
Nam –nghiên cứu cụ thể cho Hải Phòng, ThS. Nguyễn Quốc Hùng, PGS.TS.Nguyễn Tiến
Chương, Tính toán khung thép
có liên kết nửa cứng theo mô hình đàn-dẻo, ThS. Nguyễn Đại Viên Lực nút tương đương
bên trong của phần tử ứng suất phẳng trong bài toán phần tử hữu hạn phi tuyến, TS. Nguyễn Văn Bắc Giới thiệu mô hình
tính phá huỷ trong kết cấu do động đất gây ra, TS. Nguyễn Việt Tuấn Phân tích trạng thái
ứng suất –biến dạng xung quanh hố đào có kể tới yếu tố không gian, TS. Trần Bá Việt, KS.
Nguyễn Thanh Trúc Ảnh hưởng của một số loại phụ gia siêu
dẻo gốc Polycarboxylate đến các tính chất của vữa tự chảy mác 30 MPa, TS. Lê Minh Long Một số vấn đề về
cường độ bê tông, ABSTRACT Completion of the refurbishment, restoration
and embellishment project of Thien Mu pagoda monument in Thua Thien-Hue
province (pp.3- 7) Dr. Tran
Minh Duc Thien Mu Pagoda
(also called Linh Mu Pagoda) locates on Ha Khe hill, An Ninh Thuong village,
Kim Long ward, Hue city, Thua Thien Hue Province. As shown in historical
documents, Thien Mu Pagoda dated from the middle of XVI century, but it really
became a big pagoda since Nguyen Hoang had it rebuilt in 1601. From then on, it
was considered as a national pagoda of Southern Vietnam.
This paper present the results obtained from the refurbishment, restoration and
embellishment project of Thien Mu pagoda monument. The construction items of
the Thien Mu pagoda monument well restored and refurbished are: Dai Hung, Dia
Tang and Quan Am temples; Phuoc Duyen tower, the Yard, the Chuong (bell) and
Trong (drum) pavilions, the Triple gate; the Front hexagonal and Quadrilateral
pavilions; the Pillars and Pattenrned banisters; the Embankment, cross-wall and
rampart; and the infrastructural technical systems.
The completion of restoration and refurbishment of Thien mu pagoda - the
most beautiful ancient religious monument in Hue
city existing for more than 400 years has shown the special attention of the Vietnam State to the freedom of religious
beliefs of the people living in Thua-Thien Hue in particular and Vietnamese
people in general. Simulation of Tropical Cyclone Winds for Coastline
Regions in Vietnam - Haiphong Case Study (pp.8- 17) MEng.Le Truong Giang, Prof.Yukio Tamura, A/Prof.Masahiro Matsui This paper presents an extensive
Monte-Carlo simulation of Tropical cyclone winds for Phulien /Haiphong meteorological station. A Tropical
cyclone model was developed for this station.
The results shown that wind speeds stipulated by Vietnamese wind loading
code (revised in 2006) for northern coastal areas, probably were overestimated
of about 17% to 27%. Further, the use of
distributions to represent tropical cyclone parameters in simulation procedure
with focusing on the central pressure difference was discussed. Analysis of steel frames with semi-rigid connections
according to elasto-plastic models(pp.18-
23) MEng. Nguyen Quoc Hung, A/Prof. Dr.Nguyen Tien Chuong In this paper, the
authors present the way to solve the problem of analyzing steel frames with
nonlinear semi-rigid connections according to elasto-plastic models. Some cases
in which steel frames subjected to loads with commonly-seen loading and
unloading rules are analyzed. The analyzing result shows that when the
nonlinear semi-rigid connections exceed the elastic limitation, there are
specific characteristics in the behaviour of the structure subjected to
variable loads, particularly the behaviour of connections, the accumulation of
residual strain and stress in the structure after the loading and unloading
cycle, or being subjected to cycle loads. Internal equivalent nodal forces of the plane strain
rectangular elements in the nonlinear finite element problem (pp.24- 26) MEng.Nguyen Dai Vien The convergence
check is an important step of every nonlinear analysis algorithm. Convergence
criterion may be any combination of out-of-balance forces, change in
displacements. Criterion based on out-of-balance force is used after yielding
because displacement is very high after yielding. Hence, the internal nodal
forces are required to be determined.
In this paper, the author presents the determination of the internal
nodal forces of plane strain rectangular elements. Introduction of the models for determining
damage to structures subjected to an earthquakes (pp.27- 31) Dr.
Nguyen Van Bac The damage model in
a form of displacement defined in most seismic codes is rather inadequate since
it is implicitly assumed that the structural damage occurs only due to maximum
displacements. This fallacy was discussed and demonstrated by a numerical
example taken from a published literature. Therefore, damage models which
include the energy dissipation during inelastic responses of structures have
been considered in seismic design. In this paper, the Park-Ang damage model was
introduced and then applied to determine the damage in a reinforced concrete
bridge pier, which was subjected to an earthquake-induced ground motion. The analysis of the stress-strain state around the
deep excavation according to its variable dimensions (pp.32- 36) Dr.Nguyen Viet Tuan The analysis of the
stress-strain state around the deep excavation is influenced by several factors
such as the soil profile, ground water, soil properties, shape of the
excavation, supporting structures, etc.. The analysis and calculation done in
this paper have shown that the variation of the stress-strain state of the soil
around the deep excavation depends on the geometrical characteristics of the
excavation. Comparison of the analyzing results with the actual monitoring ones
at some construction sites are also presented in this paper. The influence of some polycabosilate-based
superplasticizers on the properties of 30MPa self-leveling mortars (pp.37- 42) Dr.Tran Ba Viet, Eng. Nguyen Thanh Truc Pumping and grouting
mortars with high strengths of 50, 60
and 70 MPa have been studied and produced by well-known firms such as: Sika,
MBT (Switzerland). Non-shrink self-leveling
mortars high strengths of 50, 60
and 70 MPa have also been produced by Buma (England), Grace (USA). However,
there have been very few studies on low
strength non-shrink self-leveling
mortars.
In this paper, the authors present a study on production of low strength
non-shrink self-leveling mortars (30MPa)
by determining the influence of some polycabosilate-based superplasticizers on
the properties of 30MPa self-leveling
mortar being produced with the materials available in Vietnam in the
study. Some
matters on concrete strength(pp.43-
46) Dr.Le Minh long This paper presents some matters on concrete
strength as well as the application of concrete strength to the analysis and
calculation of concrete and reinforced concrete structures. Concrete strength
depends on various factors such as: production technology, dimensions and shape
of the mould, setting condition and time, working state, loading characteristic
and its acting time (short-term or
long-term), the processes of transportation, placement and compaction of
concrete...The actual concrete strength may be lesser than the relevant standard
one and, concrete strength on existing structures may different from that of
the relevant sample. In addition, concrete strength is neither identical on the
same section nor the same along the structural length.