Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: AASHTO HB-17 DIVISION II:2002
• Năm ban hành / Publication date: 2002
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Construction
• Thay thế cho / Replace: AASHTO DIVISION II:1996
• Số trang / Page: 2

Phạm vi áp dụng / Scope of standard

INTRODUCTION: This Division of the Standard Specifications
for Highway Bridges includes the basic technical construction
specifications needed for the construction of bridges and other
major transportation structures. They generally represent current
practices in the United States and are consistent with the AASHTO
Design Specifications for Bridges which are contained in Division
I. They are provided to be used either as part of the
specifications for projects or as a guide for agencies in
developing their own standards. When so used, uniformity and the
efficiencies associated therewith may be realized.

These technical specifications do not include the clauses needed
for the administration of a contract and were written to be used in
conjunction with general provisions such as those in the AASHTO
Guide Specifications for Highway Construction. Other
comparable sets of general provision clauses currently in use by
many States can also be used to cover the administration
requirements for construction contracts. The Guide Specifications
and these Standard Specifications are intended to be complementary
and to provide for the principal and most widely used items of work
required for the construction of major transportation structures.
Note that these specifications do not identify the date of
specifications, which are included by reference, such as the AASHTO
Standard Specifications for Transportation Materials and
Methods of Testing and Sampling. As required by the AASHTO
Guide Specification, the edition of such specifications
incorporated by reference will be the edition in effect on the date
of advertisement for proposals for the project.

Sufficient detail may not be included in these specifications to
suit local or unusual conditions or unique designs. The many
differences in climate, geology, customs, statutes and regulations
prevent the writing of a more detailed national construction
specification. Therefore, the user is expected to supplement or
alter the requirements of these specifications, as needed, in the
project special provisions. A Commentary is provided to assist the
user in developing such special provisions.

These specifications were extensively revised under NCHRP 12-34
in 1989 and approved by AASHTO Highway Subcommittee on Bridges and
Structures in 1990.