dynamic ductility 中文意思是什麼
dynamic ductility
解釋
沖擊韌性-
The thesis verifies the availability of ductility detailings of elements prescribed by code through comparing the actual rotation capability of both ends of columns and beams obtained from inelastic dynamic analysis and the maximal rotation capability which columns and beams can possess through adopting the detailings in the code
本文通過對分析所得的梁、柱端實際塑性轉動和採用規范構造措施后的構件可能具有的轉動能力進行對比檢驗了規范構件延性構造措施的有效程度；並再次確認了柱截面尺寸沿高度收小（變截面）以及當頂部樓層柱軸壓比小於0 -
Chinese seismic design code has adopted the popular seismic design concept in the world, that is, using reasonable combination of " seismic design force - ductility grade " and the concept of " capacity design " to set up an ideal energy - dissipation mechanism behaving inelastic dynamic response characters to resist given seismic intensity
中國建築抗震設計規范采納了當今世界各國主流的抗震設計思想，即以合理的「設計地震力- -延性等級」的組合和「能力設計（ capacitydesign ） 」的思路來構架具有合理的非線性地震響應特徵的耗能機構抵禦預定水準的地震作用。 -
Steel frame with welding joint easily occur brittle collapse because of having a low ductility at joints then ， a semi - rigid connected steel frame has large the energy absorption capacity which can resist dynamic loads and the using steel qualities of bracing system and joints are small so adopting a semi - rigid jointed steel frame is economical and stable but for semi - rigid connections are complex and variable ， in conventional analysis and design of steel structures ， it is usually assumed that the connections between columns and beams are either rigid or pinned the analysis of steel frames adopting the assumption can simplify the procedure of analysis and design ， but cannot precisely reflect structural practical circumstance and the errors of calculating results are large ， even ， get incorrect conclusions semi - rigid connection was referred to in chinese code for design of steel structures ( 2001 ， 10 ) ， however ， it isn ’ t specified how to apply semi - rigid joints in design in fact it cannot be carry out the purpose of the paper give a calculating method that accords practical engineering and easily put into effect worthwhile it is going to promote the development of semi - rigid jointed steel frame in design and heighten structural stability in the paper ， at first some commonly employed methods for the modeling of connection behavior are introduced richard abbott function modeling of connection is adopted for extended end plate bolted connection by the 34 test data comparing to regression analysis indicate richard - abbott function modeling of connection represents an excellent fit to test data then after a semi - rigid joint behavior can be modeled as a finite stiffness rotation spring ， base on rotation and displacement equation derive the element stiffness matrixes with semi - rigid connections where the effects ofj ointed flexibility geometric non - linearity and shear forces in the connection deformations have been considered in and fixed - end forces are modified finally, a program for calculating semi - rigid with incremental - iterative method has been
本文的目的就是為半剛性連接鋼框架的設計提供一種既符合工程實際又簡便易行的計算方法，供規范使用過程的補充、延伸或參考；同時，也將促進半剛性連接鋼框架設計技術的發展，為提高結構安全性能、節省工程成本發揮應有的作用。本文首先介紹了常見的幾種應用較為廣泛的樑柱連接彎矩轉角關系模型，在分析比較的基礎上，選用richard ? abbott函數模型作為外伸端板連接彎矩轉角關系模型，通過對34個外伸端板連接的實驗數據與回歸分析得到的參數比較可知，經回歸分析得到的此模型參數與實驗數據符合較好。然後用彈簧表徵連接點的轉動剛度，根據梁的轉角位移方程推導出半剛性連接的剛度矩陣，在單元剛度矩陣中考慮了節點柔性、幾何非線性和剪切變形的影響，並對固端力進行了修正，最後用增量迭代法編制有限元程序進行計算和分析。 -
Steel frame with welding joint easily occur brittle collapse because of having a low ductility at joints. then, a semi - rigid connected steel frame has large the energy absorption capacity which can resist dynamic loads and the using steel qualities of bracing system and joints are small. so adopting a semi - rigid jointed steel frame is economical and stable
採用焊接剛性節點的鋼框架因節點延性較差容易發生脆性破壞，而半剛接鋼框架因節點具有較強的耗能能力可以抵抗一定的地震荷載，同時還可以減少斜撐的數量及節點用鋼量，這使得半剛接鋼框架成為一種經濟、可靠的選擇。 -
In recent years, quite a lot of earthquakes in the world indicate that steel frames with welding joint easily occur brittle collapse because of having a low ductility at joints. then, a semi - rigid connected steel frame has large the energy absorption capacity which can resist dynamic loads
多次地震表明，採用完全焊接剛性節點的鋼框架因節點延性差、殘余應力大，容易發生脆性破壞，而半剛接鋼框架因節點具有較強的變形能力和耗能能力可以抵抗一定的地震荷載。
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