Introduction to Structural Health Monitoring Systems of The Shanghai Tower

Transcription

1 Introduction to Structural Health Monitoring Systems of The Shanghai Tower Haibei Xiong, Qilin Zhang, Weixing Shi,Airon Chen Tongji University 20 th Aug., 2013

2 OUTLINE Background Short Introduction to The Shanghai Tower Structural Health Monitoring Systems Accelerations Horizontal Displacement Wind Pressure and Wind Environment Stress and Strain Data Acquisition and Analysis System

3 1. BACKGROUND More and more super high-rise buildings are designed and constructed to challenge the limitation of human ambitious, and this skyscrapers become the landmarks of a cities or a regions. 600m In China 500m

4 1. BACKGROUND But, how about a super-high rise building s performances? Does it perform according to original design? If it has some defects, what will happen? And What we can do? Monitoring on structural responses is an efficient way to help us to understand the structural performance and then control the development Now, It is also a modern solution for seismic mitigation.

5 1. BACKGROUND Daniel BALAGEAS, Structural Health Monitoring

6 1. BACKGROUND Cases Hangzhou Citizen Hall 2. Shenzhen Citizen Hall EXPO Sun Valley 4. Shanghai Voyage Museum 5. Sutong Bridge

7 2. Short Introduction to The Shanghai Tower

8 Design: Architecture Design: Gensler Structural Design:Thornton Tomasetti Local Design Company : Tongji Architecture Design Company Construction Time Schedule: From to

9 Location Shanghai, China

10 Height: 632m Floors:128 Superstructure Area:380,000 m 2 Underground Area:160,000 m 2 Plot ratio: Usage: Office Hotel Shopping Mall Entertainment

11 Perspective view

12 Geometrical Characteristic

13 Typical Plan

14 Usage of space 2. 建筑设计简介

15 Structural System Mega Column Core Tube Outrigger Outrigger Core Outrigger+ Belt Truss Mega- Colum n Belt Truss Belt Truss

16 This system is a typical system which showed as a very good later Resistance of Super high-rise Building

17 Mega Column Zo ne Cross Sec. (m) Conc rete Grad e Reinforc ement Ratio 8 M:1.9x2.4 C50 4% 7 M:2.3x3.3 C50 4% 6 M:2.5x4.0 C60 4% 5 M:2.6x4.4 C60 4% C:1.2x4.5 C60 4% ZONE6~8 Typical plan of 8 Mega-columns 4 M:2.8x4.6 C60 4% C:1.5x4.8 C60 4% 3 M:3.0x4.8 C70 4% C:1.8x4.8 C70 4% 2 M:3.4x5.0 C70 4% C:2.2x5.0 C70 4% 1 M:3.7x5.3 C70 5% C:2.4x5.5 C70 4% ZONE6~8 Typical plan of 8 Mega-columns and 4 Conner Columns

18 Core Tube The wall thickness is from 1200mm to 600 mm, Concrete Grade is C60. (f c = 60 MPa) ZONE9 ZONE6~8

19 Outriggers Located at Zone 2, 4, 5, 6, 7 and 8 OT8 OT7 OT6 OT5 OT4 OT2 H Steel Section H1000x1000x90x90 H1000x1000x80x80 H1000x1000x60x60 H1000x1600x100x100 H1000x1000x80x80 H1000x1000x90x

20 Standard floor : 155mm Composite Steel and RC Slab Strengthening Floor: 155mm Composite Steel and RC Slab and Radial Truss

21 Belt truss (zone 1) high-strength bolted connection Belt truss and super column connection connection plate (1.6m high, 100mm thickness)

22 Double Curtains Hanger Wheel Inner Curtain Outer Curtain Radical element Lobby

23 Apical Crown Fin like Truss Crown Support Special Truss

24 3. Structural Health Monitoring Systems on the Shanghai Tower

25 Includes: Earthquake Action and Structural Vibration Horizontal Displacement Wind Pressure and Wind Environment Stress and Strain of Key Elements Surface Temperature of Building Crack Inspect at the key connection point

26 Earthquake Action and Structural Vibration 强震仪 Seismograph: Basalt, Kinemetrics, 地震 测试仪器 3D Accelerators GPS clock, 4GB Data Storage 测点布置

27 Earthquake Action and Structural Vibration Accelerometers 1 direction, High sensitive :25V/g, Range: ±0.2g, 0.05~500Hz, Resolution: 0.6E10-6 g. Amount: 44 地震 测试仪器 强震仪 测点布置

28 Horizontal Displacement 强震仪 Clinometer (pendulous type) 测试仪器 2 direction (X, Y), Range: ±1 Resolution: 0.2 Amount: 40 地震 S H tan n i i i S S H tan n i i i i 1 i 1

29 Floor Horizontal Displacement Under Wind Load ( Elastic Period ) Under Frequently accrued Earthquake Exceedance Probability (EP) is 63.2% X Dir. Y. Dir. 1 / 500 X Dir. Y. Dir. 1 / 500 地震 Horizontal Displacement Horizontal Displacement

30 Elastic-Plastic Horizontal Displacement Under Rare accrued Earthquake X Direction Exceedance Probability (EP) is 2~3% Y Direction 层数 (F) 层数 (F) 层数 (F) US257 US335 US725 US1214 MEX006 S79010 L7111 LIMIT US257 US257 US335 US335 US725 US725 US1214 US1214 MEX006 MEX006 S79010 S79010 L7111 L7111 LIMIT LIMIT X 向为主方向的层间位移角 Horizontal Displacement X 向为主方向的层间位移角 Y 向为主方向的层间位移角

31 Horizontal Displacement 强震仪 测试仪器 地震 GPS System and high-precision camera

32 Wind Pressure and Wind Environment 三维超声风向风速仪 Monitoring on: Wind Pressure At Top, Middle and Lower parts 测试仪器 测点布置

33 Strain and Stress Monitoring System Monitoring on: Mega - Columns Outriggers Connections

34 Data Acquisition and Analysis System

35 Control and Inquire System

36 Thank You!