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Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Gaoji Structural Design Code
GBJ135-90
Engineering Construction Standard Full-text Information System
W Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Gaoji Structural Design Code
GBJ135-90
Editor: Tong
Approving Department: People's Republic of China Ministry of Construction of the People's Republic of China Implementation date: June 1, 1991
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Notice on the release of the national standard "High-rise Structures Design Code"
(90) Jianbiaozi No. 319
According to the requirements of the State Planning Commission's Document No. Jizong [1984] 305, the "High-rise Structure Design Code" jointly formulated by Tongji University and relevant units has been reviewed by relevant departments. The "High-rise Structure Design Code" GBJ135-90 is now approved as a national standard and will be implemented from June 1, 1991.
This standard is managed by Tongji University. Its specific interpretation and other work are the responsibility of Tongji University. The publication and distribution is organized by the Standard and Quota Research Institute of the Ministry of Construction. Ministry of Construction of the People's Republic of China
July 2, 1990
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Preparation Instructions
This specification is prepared by Tongji University and relevant units in accordance with the requirements of the State Planning Commission's Notice No. 305 [1984]. During the preparation process, the preparation team conducted extensive investigations and research, and widely solicited opinions from all over the country in various ways. Discussions were organized at the three annual meetings of the High-Structure Committee of the Chinese Society of Engineering, and trial designs were verified. Finally, the draft was reviewed and finalized by relevant departments.
This specification is prepared based on the national standard "Uniform Standard for Building Structure Design" GBJ68-84, abides by the basic provisions of building structure loads and various building structure (steel structure, concrete structure, building earthquake resistance, building foundation) design specifications, and unifies and coordinates major common technical issues in the design of various types of high-structures. For individual and specific technical issues, the relevant professional specifications and regulations are further supplemented. This code is divided into six chapters and seven appendices. Its main contents include: general principles, basic provisions, loads, steel tower frames and pole structures, reinforced concrete cylindrical towers and foundations.
In order to improve the quality of the code, each unit is requested to pay attention to summarizing experience and accumulating data in the process of implementing this code. If you find any need for modification and supplementation, please send your questions and opinions to the School of Structural Engineering of Tongji University at any time for reference in future revisions. Tongji University
June 1990
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Main Symbols
Chapter 1
Chapter 2
Basic Provisions
Chapter 3 Loads
Section 1 Load Classification
Section 2
Wind Load .
Section 3
Section 4
Chapter 4
Ice load
Seismic action and seismic verification
Steel tower and pole structure
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Section 8
Section Section 9
Section 10
General provisions
Internal force analysis of steel tower structure
Deformation and overall stability of steel tower structure
Axial tension and axial compression members
Eccentric tension and eccentric compression members
Weld connection calculation·
Bolt connection calculation·
Flange connection calculation·
Construction requirements of steel tower structure·
Reinforced concrete cylindrical tower
Chapter 5
Section 1
General provisions·
Calculation of tower body deformation and internal force of tower section
Section 2
Section 3 Calculation of tower bearing capacity·
Section 4 Calculation of tower crack width
Section 5 Construction requirements of reinforced concrete tower Chapter 6 Foundation and base
Section 1
General Provisions
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Engineering Construction Standards Full-text Information System
Section 2 Foundation Calculation
Section 3 Rigid Foundation and Plate Foundation
Section 4 Pull-out Stability and Sliding Stability of Foundation…Appendix 1 Strength Design Values of Steel Materials and Connections.·Center
Appendix 2
Stability Factor of Axially Compressed Steel Members
Calculation Table of Half Angle of Compressed Zone of Horizontal Section of Tower ① (In Normal UseAppendix 3
State)
Appendix 4
Appendix 5
Calculation of Additional Bending Moment of Circular Simple Tower
Electric Power
Under the action of eccentric load, when the base of circular or annular foundation is partially separated from the base soil, the base pressure calculation coefficient t,
......
Foundation Calculation of pull-out stability of anchor plate foundation
Appendix 6
Appendix 7 Explanation of terms used in this code
Additional explanation·
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
Main symbols
A——Sectional area, gross cross-sectional area, foundation bottom area; A——anchor hole area;
A—net cross-sectional area;
A, A——gross cross-sectional area and net cross-sectional area of a single leg of lattice component; A
Cra, Cmo
Ca, Co
——Reinforcement cross-sectional area,
——Action effect coefficient of horizontal seismic action and vertical seismic action;——Load effect coefficient of permanent load and variable load; Elastic modulus, seismic action;
Elastic modulus of concrete;
E. - Elastic modulus of steel and steel bars; wwW.bzxz.Net
- Horizontal and vertical seismic actions;
- Force, concentrated load, and pull-out force on foundation and anchor plate foundation (design value);
F - Total horizontal seismic action of the structure;
F - Total vertical seismic action of the structure;
F, Fut
- Horizontal seismic action and vertical seismic action of a particle; permanent load, gravity of the structure, deadweight of foundation (including the weight of soil on the foundation);
G,, G, - Gravity concentrated on particle i; G - Representative value of total gravity of the structure during seismic calculation; G. Soil weight,
G, weight of foundation and anchor plate foundation;
H-total height of high-altitude structure, level of superstructure transmitted to foundation Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
1-section inertia moment;
M-moment or bending moment, design value of bending moment, bending moment transmitted from superstructure to foundation (design value);
△M additional bending moment,
M-standard load under action Bending moment;
M—bending moment caused by lateral wind vibration;
M, M-
—bending moment caused by wind force in the downwind direction;
bending moment of a pair of axes, y-axis;
N—axial force (tension or pressure) and its design value, rope tension, and design value of vertical load transmitted from the superstructure to the foundation; Ng—Euler critical force;
N—axial force under standard load;
N—axial force caused by section bending moment in a single limb; N. Design value of bearing capacity of each bolt;
N., N?, N.
--design value of bearing capacity of each bolt under pressure, tension and shear;--variable load;
R——resistance,
--Reynolds number;
RM, Rn
--resistance function of structural member;
bending and compressive bearing capacity of section;
action (load) effect, area moment of section about a certain axis; seismic effect caused by horizontal earthquake action of vibration mode; load effect of lateral wind vibration and wind force along wind direction;--basic natural vibration period of high-rise structure;
T,--natural vibration period of vibration mode of component i;
V--shear force;
V.--critical wind speed;
V. 1. The sum of the vertical components of the shear resistance on the sliding surface of the soil; V,——the shear force of the slab,
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V,一The shear force distributed to a tie surface
W——Section resistance moment;
W. ——Net section resistance moment;
W., W,Section resistance moment of a pair of r and y axes; W,——Gross section resistance moment.
一The distance from the center to the center of a tie plate, vibration acceleration, the distance from the point of action of the resultant force to the maximum pressure edge of the bottom surface of a
foundation;
ar, a
The width of the base pressure surface of the circular (ring) foundation; The geometric parameters of the member section:
The distance from the point of action of the resultant force to the foundation edge on one side e, one side e, basic ice thickness, the length of the foundation side parallel to the axis; cohesion;
Diameter;|| tt||Effective diameter of the bolt (at the thread);
Diameter of the bolt hole;
Eccentricity of the axial force to the center of gravity of the section (when standard load acts);
fDesign value of the strength of steel and steel wire rope;
f,,f
-Design value of the compression, tension and shear strength of the bolt;-Design value of the compressive strength of concrete;
f—Design value of the seismic bearing capacity of the foundation;
f. - Design value of steel bar strength, design value of foundation bearing capacity; fu——standard value of concrete tensile strength; f.——tensile strength of steel, breaking strength of steel wire rope; f,——yield strength of steel;
f”, f, f”—design values of compression, tension and shear strength of butt welds; f——design values of (compression, tension and shear) strength of fillet welds; h—height, section height;
——critical depth;
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Engineering Construction Standard Full-text Information System
hf——leg size of fillet weld;
h——height of calculated section i, height of concentrated mass point i, h.
Pmar, Pmia
qa, qs
-pull-out depth of foundation;
(tower) section gyration radius,
length; | |tt||Calculated length of the rod between elastic supports;
Calculated length of (corner) weld;
Calculated value of foundation bottom pressure;
Average pressure on foundation bottom;
Maximum and minimum pressures on foundation edge,
Gravity distribution of tower line;
Gravity load of ice wrapping per unit area and per unit length; Section core distance (radius);
Radius to the center line of tower wall thickness;
-Bending deformation curvature at the representative section of the tower; Foundation settlement,
-Thickness of connecting parts, thickness of the wall;
△—Temperature difference;
-Horizontal displacement of point i;
ui,uj
-Relative displacement of i mode at point i;
-Resonance critical wind speed;
Wind load acting on unit area of tall structure; W. Basic wind pressure value;
W-equivalent static wind load caused by lateral resonance. (III)
α-angle, half-angle coefficient of compression zone; a
(calculation of crack width) characteristic coefficient related to component stress;
elastic modulus ratio of steel bar and concrete; Engineering Construction Standard Full-text Information System
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horizontal earthquake influence coefficient corresponding to period T; - maximum value of horizontal earthquake influence coefficient; - maximum value of vertical earthquake influence coefficient; temperature linear expansion coefficient of reinforced concrete; half-angle coefficient of tensile steel bar; || tt||Correction coefficient of ice thickness related to diameter; height increment coefficient of ice thickness;
Wind vibration coefficient at height of -2;
βo——basic value of the dynamic part of wind vibration coefficient;βmz, β——equivalent bending moment coefficients in and out of the plane of moment action when subjected to eccentric compression;
YBh, YBo
Ya, y
-ice weight;
importance coefficient of tall structure;
partial coefficient of horizontal and vertical earthquake action; permanent load, Load partial factor of variable load; wind load partial factor in seismic calculation;
i vibration mode participation factor;
resistance seismic adjustment factor;
influence factor of wind pressure pulsation and height change; influence factor of vibration mode and structural shape;
structural damping ratio;
adjustment factor of basic value of wind vibration coefficient (dynamic part); half angle (radian) of hole;
component slenderness ratio;
converted slenderness ratio of rod between elastic support points; friction coefficient of foundation; ||tt ||Lateral force coefficient;
-wind pressure return period adjustment coefficient;
-wind body shape coefficient;
2 wind pressure height variation coefficient;
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Engineering Construction Standard Full-text Information System
-Coefficient related to the surface characteristics of the longitudinal tensile steel bars when calculating the crack width;
-Pulsation increase coefficient, rod stiffness reduction coefficient, relative height of the compression zone;
Pe, pi
ge, of.
-Reinforcement ratio of longitudinal reinforcement;
Reinforcement ratio of outer and inner rows of longitudinal reinforcement;-Compressive stress of concrete on windward and leeward sides; Stress of longitudinal reinforcement on windward side;
-Tensile stress of longitudinal reinforcement under standard load and temperature,
-Tensile stress of reinforcement under temperature;
-Weld shear stress;
Weld stress perpendicular to and along the length of the weld;
Stability coefficient of axially compressed members;
-Half angle of compression zone of section,
-Integral stability coefficient of bending members;
-Strain non-uniformity coefficient of longitudinal tensile reinforcement between cracks, shape coefficient of annular foundation slab;
. ——Combination value coefficient of variable load; ——Quasi-permanent value coefficient of variable load; ——Combination value coefficient of wind load in earthquake-resistant calculation; 1——Adjustment coefficient of wire rope twist strength; 2——Uneven strength coefficient of wire;
Characteristic coefficient of horizontal section of tower.
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Pmar, Pmia
qa, qs
-foundation pull-out depth;
(tower) section radius of gyration,
length;
calculated length of the rod between elastic supports;
calculated length of (corner) weld;
calculated value of foundation bottom surface pressure;
average pressure on the foundation bottom surface;
maximum and minimum pressure on the foundation edge,
gravity distributed on the tower line;
unit area, unit length ice-wrapped gravity load on the tower; section core distance (radius);
radius to the center line of the tower wall thickness;
- bending deformation curvature at the representative section of the tower; foundation settlement,
- thickness of the connecting piece, thickness of the wall;
△- temperature difference;
- horizontal displacement of point i;
ui, uj
- relative displacement of the i vibration mode at point i;
- critical wind speed of resonance;
wind load acting on the unit area of the tall structure; W. basic wind pressure value;
W- equivalent static wind load caused by lateral resonance. (III)
α--angle, half-angle coefficient of compression zone; a
(calculation of crack width) characteristic coefficient related to component stress;
ratio of elastic modulus of steel and concrete; Engineering Construction Standard Full-text Information System
W Engineering Construction Standard Full-text Information System
horizontal earthquake influence coefficient corresponding to period T; - maximum value of horizontal earthquake influence coefficient; - maximum value of vertical earthquake influence coefficient; temperature linear expansion coefficient of reinforced concrete; half-angle coefficient of tensile steel bar; || tt||Correction coefficient of ice thickness related to diameter; height increment coefficient of ice thickness;
Wind vibration coefficient at height of -2;
βo——basic value of the dynamic part of wind vibration coefficient;βmz, β——equivalent bending moment coefficients in and out of the plane of moment action when subjected to eccentric compression;
YBh, YBo
Ya, y
-ice weight;
importance coefficient of tall structure;
partial coefficient of horizontal and vertical earthquake action; permanent load, Load partial factor of variable load; wind load partial factor in seismic calculation;
i vibration mode participation factor;
resistance seismic adjustment factor;
influence factor of wind pressure pulsation and height change; influence factor of vibration mode and structural shape;
structural damping ratio;
adjustment factor of basic value of wind vibration coefficient (dynamic part); half angle (radian) of hole;
component slenderness ratio;
converted slenderness ratio of rod between elastic support points; friction coefficient of foundation; ||tt ||Lateral force coefficient;
-wind pressure return period adjustment coefficient;
-wind body shape coefficient;
2 wind pressure height variation coefficient;
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
-Coefficient related to the surface characteristics of the longitudinal tensile steel bars when calculating the crack width;
-Pulsation increase coefficient, rod stiffness reduction coefficient, relative height of the compression zone;
Pe, pi
ge, of.
-Reinforcement ratio of longitudinal reinforcement;
Reinforcement ratio of outer and inner rows of longitudinal reinforcement;-Compressive stress of concrete on windward and leeward sides; Stress of longitudinal reinforcement on windward side;
-Tensile stress of longitudinal reinforcement under standard load and temperature,
-Tensile stress of reinforcement under temperature;
-Weld shear stress;
Weld stress perpendicular to and along the length of the weld;
Stability coefficient of axially compressed members;
-Half angle of compression zone of section,
-Integral stability coefficient of bending members;
-Strain non-uniformity coefficient of longitudinal tensile reinforcement between cracks, shape coefficient of annular foundation slab;
. ——Combination value coefficient of variable load; ——Quasi-permanent value coefficient of variable load; ——Combination value coefficient of wind load in earthquake-resistant calculation; 1——Adjustment coefficient of wire rope twist strength; 2——Uneven strength coefficient of wire;
Characteristic coefficient of horizontal section of tower.
Engineering 6 Construction Standard Full Text Information System
Pmar, Pmia
qa, qs
-foundation pull-out depth;
(tower) section radius of gyration,
length;
calculated length of the rod between elastic supports;
calculated length of (corner) weld;
calculated value of foundation bottom surface pressure;
average pressure on the foundation bottom surface;
maximum and minimum pressure on the foundation edge,
gravity distributed on the tower line;
unit area, unit length ice-wrapped gravity load on the tower; section core distance (radius);
radius to the center line of the tower wall thickness;
- bending deformation curvature at the representative section of the tower; foundation settlement,
- thickness of the connecting piece, thickness of the wall;
△- temperature difference;
- horizontal displacement of point i;
ui, uj
- relative displacement of the i vibration mode at point i;
- critical wind speed of resonance;
wind load acting on the unit area of the tall structure; W. basic wind pressure value;
W- equivalent static wind load caused by lateral resonance. (III)
α--angle, half-angle coefficient of compression zone; a
(calculation of crack width) characteristic coefficient related to component stress;
ratio of elastic modulus of steel and concrete; Engineering Construction Standard Full-text Information System
W Engineering Construction Standard Full-text Information System
horizontal earthquake influence coefficient corresponding to period T; - maximum value of horizontal earthquake influence coefficient; - maximum value of vertical earthquake influence coefficient; temperature linear expansion coefficient of reinforced concrete; half-angle coefficient of tensile steel bar; || tt||Correction coefficient of ice thickness related to diameter; height increment coefficient of ice thickness;
Wind vibration coefficient at height of -2;
βo——basic value of the dynamic part of wind vibration coefficient;βmz, β——equivalent bending moment coefficients in and out of the plane of moment action when subjected to eccentric compression;
YBh, YBo
Ya, y
-ice weight;
importance coefficient of tall structure;
partial coefficient of horizontal and vertical earthquake action; permanent load, Load partial factor of variable load; wind load partial factor in seismic calculation;
i vibration mode participation factor;
resistance seismic adjustment factor;
influence factor of wind pressure pulsation and height change; influence factor of vibration mode and structural shape;
structural damping ratio;
adjustment factor of basic value of wind vibration coefficient (dynamic part); half angle (radian) of hole;
component slenderness ratio;
converted slenderness ratio of rod between elastic support points; friction coefficient of foundation; ||tt ||Lateral force coefficient;
-wind pressure return period adjustment coefficient;
-wind body shape coefficient;
2 wind pressure height variation coefficient;
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
-Coefficient related to the surface characteristics of the longitudinal tensile steel bars when calculating the crack width;
-Pulsation increase coefficient, rod stiffness reduction coefficient, relative height of the compression zone;
Pe, pi
ge, of.
-Reinforcement ratio of longitudinal reinforcement;
Reinforcement ratio of outer and inner rows of longitudinal reinforcement;-Compressive stress of concrete on windward and leeward sides; Stress of longitudinal reinforcement on windward side;
-Tensile stress of longitudinal reinforcement under standard load and temperature,
-Tensile stress of reinforcement under temperature;
-Weld shear stress;
Weld stress perpendicular to and along the length of the weld;
Stability coefficient of axially compressed members;
-Half angle of compression zone of section,
-Integral stability coefficient of bending members;
-Strain non-uniformity coefficient of longitudinal tensile reinforcement between cracks, shape coefficient of annular foundation slab;
. ——Combination value coefficient of variable load; ——Quasi-permanent value coefficient of variable load; ——Combination value coefficient of wind load in earthquake-resistant calculation; 1——Adjustment coefficient of wire rope twist strength; 2——Uneven strength coefficient of wire;
Characteristic coefficient of horizontal section of tower.
Engineering 6 Construction Standard Full Text Information System
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